US20050240118A1 - Surgical biopsy device having a flexible cutter - Google Patents

Surgical biopsy device having a flexible cutter Download PDF

Info

Publication number
US20050240118A1
US20050240118A1 US11/172,557 US17255705A US2005240118A1 US 20050240118 A1 US20050240118 A1 US 20050240118A1 US 17255705 A US17255705 A US 17255705A US 2005240118 A1 US2005240118 A1 US 2005240118A1
Authority
US
United States
Prior art keywords
cutter
elongated
piercing element
tissue
lumen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/172,557
Inventor
Thomas Huitema
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Devicor Medical Products Inc
Original Assignee
Huitema Thomas W
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huitema Thomas W filed Critical Huitema Thomas W
Priority to US11/172,557 priority Critical patent/US20050240118A1/en
Publication of US20050240118A1 publication Critical patent/US20050240118A1/en
Assigned to DEVICOR MEDICAL PRODUCTS, INC. reassignment DEVICOR MEDICAL PRODUCTS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETHICON ENDO-SURGERY, INC.
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT SECURITY AGREEMENT Assignors: DEVICOR MEDICAL PRODUCTS, INC.
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0266Pointed or sharp biopsy instruments means for severing sample
    • A61B10/0275Pointed or sharp biopsy instruments means for severing sample with sample notch, e.g. on the side of inner stylet
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0283Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B2010/0208Biopsy devices with actuators, e.g. with triggered spring mechanisms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B2010/0225Instruments for taking cell samples or for biopsy for taking multiple samples

Definitions

  • the present invention relates, in general, to devices for tissue sampling and, more particularly, to improved biopsy probes for acquiring subcutaneous biopsies and for removing lesions.
  • Non-invasive methods for examining tissue are palpation, X-ray, MRI, CT, and ultrasound imaging.
  • a biopsy may be done either in an open procedure or in a percutaneous procedure.
  • a scalpel is used by the surgeon to create a large incision in the tissue in order to provide direct viewing and access to the tissue mass of interest. Removal of the entire mass (excisional biopsy), or a part of the mass (incisional biopsy) is done.
  • a needle-like instrument For a percutaneous biopsy, a needle-like instrument is used through a very small incision to access the tissue mass of interest and to obtain a tissue sample for later examination and analysis.
  • the advantages of the percutaneous method as compared to the open method are significant: less recovery time for the patient, less pain, less surgical time, lower cost, less risk of injury to adjacent bodily tissues such as nerves, and less disfigurement of the patient's anatomy.
  • Use of the percutaneous method in combination with artificial imaging devices such as X-ray and ultrasound has resulted in highly reliable diagnoses and treatments.
  • Aspiration of the tissue through a fine needle requires the tissue to be fragmented into small enough pieces to be withdrawn in a fluid medium.
  • the method is less intrusive than other known sampling techniques, but one can only examine cells in the liquid (cytology) and not the cells and the structure (pathology).
  • core biopsy a core or fragment of tissue is obtained for histologic examination which may be done via a frozen or paraffin section. The type of biopsy used depends mainly on various factors present in the patient, and no single procedure is ideal for all cases. Core biopsy, however, is very useful in a number of conditions and is widely used by physicians.
  • a number of biopsy devices for use in combination with artificial imaging devices are known in the field.
  • An example of a core biopsy device using an artificial imaging system is described in U.S. Pat. Nos. 4,699,154, 4,944,308, and U.S. Pat. No. Re. 34,056.
  • these types of spring-powered devices must re-puncture the breast or organ each time a sample is taken.
  • An example of an aspiration device using an artificial imaging system is described in the following U.S. Pat. No.: 5,492,130 issued to Chiou on Feb. 20, 1996; U.S. Pat. No. 5,526,821 issued to Jamshidi on Jun. 18, 1996; U.S. Pat. No. 5,429,138 issue to Jamshidi on Jul. 4, 1995; and U.S. Pat. No. 5,027,827 issued to Cody, et al, on Jul. 2, 1991.
  • the device can also be used to collect multiple samples in numerous positions about its longitudinal axis, and without needing to remove the device from the body. These features allow for substantial sampling of large lesions and complete removal of small ones.
  • the instrument is commonly known as MAMMOTOMETM.
  • the MAMMOTOME instrument In actual clinical use for breast biopsy, the MAMMOTOME instrument (probe and driver assembly) is mounted to the three axis positioning head of an x-ray imaging machine.
  • the three axis positioning head is located in the area between the x-ray source and the image plate.
  • the x-ray machines are outfitted with a computerized system which requires two x-ray images of the breast be taken with the x-ray source at two different positions in order for the computer to calculate the x, y and z axis location of the suspect abnormality.
  • the x-ray source In order to take the stereo x-ray images the x-ray source must be conveniently movable.
  • the x-ray source therefore is typically mounted to an arm which, at the end opposite the x-ray source, is pivotally mounted to the frame of the machine in the region of the image plate.
  • the breast is placed between the x-ray source and the image plate, the breast being placed on the image plate.
  • the clinician will manually position the x-ray source to one side and then the other of the center axis of the machine (typically 15-20 degrees to each side of the center axis), obtaining an x-ray image on each side of the breast.
  • the computer will then, with great accuracy, calculate the precise x, y and z location of the suspect abnormality in the breast and automatically communicate to the clinician or directly to the positioning head the targeting coordinates for the biopsy device.
  • the clinician can then manually, or automatically, position the biopsy probe into the breast at the precise location of the abnormality.
  • x-ray machines in wide spread use for breast imaging.
  • One style is known as “prone”, because the patient lies face down during the x-ray and biopsy procedures on a table that is configured horizontal to the floor.
  • the other style, in more wide spread use, is the “upright”.
  • the center axis of the upright imaging machine is configured vertical to the floor and the patient sits in front of the machine during the x-ray and biopsy procedures.
  • the above described biopsy instruments mount to a three axis positioning head located between the x-ray source and image plate on the breast x-ray imaging machine.
  • the distance between the x-ray source and imaging plate is known in the industry as the SID (Source to Image Distance).
  • SID Source to Image Distance
  • a biopsy probe for the collection of at least one soft tissue sample from a surgical patient.
  • the biopsy probe has a frame and an elongated piercing element having a proximal end attached to the distal end of the frame and a sharpened distal end for piercing tissue.
  • the piercing element has a lumen extending at least partially therethrough.
  • the probe also includes an elongated cutter disposed coaxially and slidably within the lumen of the piercing element.
  • the cutter has a distal end for cutting a tissue sample, a proximal end and a body connecting the distal and proximal ends, wherein at least a portion of the body comprises a flexible member.
  • FIG. 1 is an isometric view of a biopsy apparatus, showing the biopsy probe of FIG. 2 , its insertion into a driver, and schematic representations of a control unit, vacuum sources, and three axis positioning head;
  • FIG. 2 is an isometric view of a biopsy probe of the present invention
  • FIG. 3 is an exploded isometric view of the biopsy probe of FIG. 2 ;
  • FIG. 4 is an isometric view of a probe frame of the biopsy probe of FIG. 2 ;
  • FIG. 5 is a longitudinal sectional view of the probe frame of FIG. 4 illustrating the internal structures assembled into its distal and proximal ends.
  • the present invention is a surgical biopsy apparatus 12 for a minimally invasively acquiring repeated subcutaneous biopsies.
  • surgical biopsy apparatus 12 generally comprises a probe 10 for insertion within a surgical patient for extraction of a tissue sample therefrom.
  • Apparatus 12 further includes a powered probe driver 100 , a three axis positioning head 98 , a control unit 96 , and a first and second tube in fluid communication with a first, and second reservoir, respectively.
  • reservoirs 90 and 94 are connected to at least one vacuum source.
  • Probe 10 of surgical biopsy apparatus 12 is removably mounted to powered probe driver 100 .
  • the elements shown schematically as boxes in FIG. 1 are well known in the art and are described in the herein incorporated references.
  • Driver 100 is well known in the art and includes a housing 109 having a moveable cover 108 hingedly attached thereto. Within housing 109 there is a housing mount fork 102 for receiving probe 10 . Housing 109 also included a cutter advance fork 112 for positioning cutter gear 59 , and an elongated driver gear 106 to mate with and rotate cutter 50 .
  • Driver 100 is attached to a three axis positioning head 98 which is connected to an x-ray imaging machine having a stereotactic guidance system (not shown). This positioning/guidance system is for moving probe 10 and driver 100 so that the apparatus pierces the tissue at the correct location in order to sample the target lesion. Housing 109 also has a cutter advance knob 113 which is manually actuated to obtain the tissue sample. This feature will be discussed in greater detail below.
  • Control unit 96 is used to control the sequence of actions performed by surgical biopsy apparatus 12 in order to obtain the biopsy sample from a surgical patient. As will be appreciated by those skilled in the art, and as discussed in the hereinbefore incorporated references, control unit 96 preferably controls the application of a vacuum to probe 10 , and controls the activation of the cutter motor (not shown) within driver 100 .
  • Probe 10 is a coaxial assembly of three elongated elements: a piercer 20 , a cutter 50 , and a tissue remover 60 .
  • Tissue remover 60 moves slideably within cutter 50 which, in turn, moves slideably within frame 40 and piercer 20 .
  • Cutter 50 and tissue remover 60 contain flexible elements, as will be described later.
  • Probe 10 generally is used as follows: The skin of a surgical patient is disinfected. A local anesthetic such as lidocaine hydrochloride is injected by hypodermic needle into the tissue. A small incision is made in the skin of the surgical patient.
  • piercer 20 is placed into that incision and pierced into the tissue of the surgical patient.
  • Piercer 20 is advanced to the tissue area of interest by the movement of three axis positioning head 98 .
  • cutter 50 is completely advanced in its distal direction.
  • cutter 50 is partially retracted in the proximal direction and the tissue to be extracted is drawn by vacuum into port 26 on distal end 22 of probe 10 .
  • Cutter 50 is then actuated by the cutter motor of driver 100 and manually advanced distally using cutter advance knob 113 . This severs the tissue sample captured in distal end 22 of probe 10 .
  • cutter 50 is manually retracted in the proximal direction, transporting the tissue sample to outside the patient's body. Tissue remover 60 then releases or “knocks-out” the tissue sample from cutter 50 , so that the tissue sample may be retrieved for analysis.
  • piercer 20 includes a frame 40 which may be made from a rigid, medical grade plastic.
  • Frame 40 is generally arcuate in shape, forming an arc of approximately ninety degrees in the preferred embodiment, and may be more or less as may be dictated by the mounting needs for the x-ray imaging machine.
  • Frame 40 has a distal end 48 and a proximal end 49 .
  • Frame hole 45 (See FIG. 5 ) extends longitudinally through frame bushing 46 communicating between the distal end 48 and proximal end 49 of frame 40 .
  • a pair of mounting fins 44 are located on proximal end 49 of frame 40 . Mounting fins 44 are removably inserted into a mounting fork 102 of driver 100 as depicted in FIG. 1 , thus anchoring probe 10 to driver 100 .
  • Teeth 38 which comprise a plurality of raised ribs, and marker 39 , a single raised rib, are located at the distal end 48 of frame 40 and interface with positioning wheel 30 , which will be described in more detail later.
  • Tissue sampling surface 47 at the distal end 48 of frame 40 is where a tissue sample extracted from within the surgical patient is removed from probe 10 .
  • Tubular piercing element 25 is well known in the art and has a proximal end 24 and a distal end 22 and is rotatably attached to the proximal end 48 of frame 40 by a hub 2 (See FIG. 5 ) and a positioning wheel 30 .
  • Piercing element 25 is preferably made from plastic or stainless steel and includes an upper lumen 21 and a lower lumen 23 .
  • Rectangular port 26 on distal end 22 of piercing element 25 is located on upper lumen 21 and is provided for receiving the tissue that is to be extracted from the surgical patient. Rotation of positioning wheel 30 by the surgeon allows positioning of rectangular port 26 in distal end 22 of piercer 20 .
  • a positional indicator 31 on wheel 30 may be referenced to a marker 39 on frame 40 of probe 10 .
  • Piercer 20 further comprises a lower lumen 23 which has a plurality of small holes (not shown) in distal end 22 for the communication of port 26 to first reservoir 90 .
  • this first reservoir is a vacuum source so that the prolapse of tissue into port 26 is greatly enhanced.
  • teeth 38 are located around the periphery of distal end 48 of frame 40 . Teeth 38 are for interaction with flutes 32 (not shown) of positioning wheel 30 (see FIG. 1 ) so that a tactile feedback is provided to the user while adjusting the location of port 26 on distal end 22 of piercer 20 .
  • teeth 38 are a holding means for the orientation of port 26 , and also a referencing means. That is, the surgeon may count the number of “detents” felt when rotating positioning wheel 30 , while looking at the relationship between positional indicator 31 on wheel 30 and marker 39 on frame 40 , in order to understand the radial orientation of port 26 on distal end 22 of piercer 20 .
  • cutter 50 comprises a distal end 52 , a proximal end 58 , and a flexible member extending therebetween.
  • Cutter 50 further comprises a cutter shank 56 having a distal end 57 fixedly attached to a proximal end 54 of a hollow flexible cutter tube 53 .
  • Flexible cutter tube 53 can be made of PVC or any other flexible thermoplastic polymer or a superelastic alloy such as nitinol.
  • flexible cutter tube 53 is made of a tubular shape constructed of wound stainless steel wire, similar to a compression spring.
  • a longitudinal passage through cutter shank 56 (not visible) communicates with a longitudinal passage through flexible cutter tube 53 .
  • Cutter blade 51 On the distal end of cutter 50 is a cutter blade 51 .
  • Cutter blade 51 has a distal end 65 and proximal end 66 .
  • Cutter blade 51 is preferably made by the sharpening of the circumference of distal end 65 of cutter blade 51 , which is preferably made of a stainless steel.
  • Proximal end 66 of cutter blade 51 is fixedly attached to distal end 67 of flexible cutter tube 53 .
  • a longitudinal passage through cutter blade 51 communicates with a longitudinal passage through flexible cutter tube 53 .
  • proximal end 58 of cutter 50 On proximal end 58 of cutter 50 is a cutter gear 59 , which is preferably integrally molded with cutter shank 56 .
  • a proximal cutter seal 114 is attached to the most proximal end of cutter 50 .
  • Cutter gear 59 is for operational engagement with an elongated gear 106 of driver 100 .
  • cutter gear 59 When probe 10 is inserted into driver 100 , cutter gear 59 is positioned into cutter advance fork 112 of the driver. Cutter advance fork 112 is attached to cutter advance knob 113 so that movement of knob 113 causes the like movement of cutter 50 .
  • Cutter 50 reciprocates axially within upper lumen 21 of piercer 20 as the surgeon manually operates advancing knob 113 .
  • cutter gear 59 moves along elongated gear 106 of driver 100 , while maintaining operational engagement.
  • the electric motor (not shown) of the driver rotates cutter 50 at a high rate of speed.
  • tissue remover 60 comprises a remover tube 63 , which has a proximal end 64 , a distal end 62 , and a longitudinal axis extending therebetween. Tissue remover 60 slides freely through proximal cutter seal 114 . On proximal end 64 of remover tube 63 is attached a valve 70 having a distal end 72 , a proximal end 74 which contains a Luer connector, and a passageway therethrough. Valve 70 provides for the flow of air and fluids from tissue remover 60 to second reservoir 94 via second tube 95 and a connector 97 (see FIG. 1 ).
  • Remover tube 63 is hollow and in the present embodiment made of flexible PVC or other flexible thermoplastic resin.
  • remover tube 63 is held fixed with reference to probe frame 40 , remover tube 63 is made of a rigid material such as stainless steel and pre-formed in an arcuate shape to match the arc of probe frame 40 .
  • a distal tip 61 (also referred to simply as a structure) on distal end 62 of remover tube 63 is configured so as to allow the passage of air and fluids and to block the passage of tissue particles larger than what may pass through tissue remover 60 and valve 70 . Distal tip 61 prevents the loss of tissue into the reservoir, which may otherwise be collected for pathological analysis.
  • remover tube 63 The length of remover tube 63 is such that when cutter 50 is retracted to the first position, distal tip 61 of remover tube 63 is approximately adjacent to cutter blade distal end 65 of cutter blade 51 . This arrangement allows the tissue sample retrieved in distal end 52 of cutter 50 to be forced out of the same by distal tip 61 of tissue remover 60 when cutter 50 is retracted to the first position. The tissue sample may then drop onto tissue sample surface 47 of probe 10 .
  • flexible cutter tube 53 fits closely yet slides freely in frame hole 45 which extends longitudinally through frame bushing 46 of piercer 20 .
  • cutter blade 51 of cutter 50 is approximately adjacent to frame surface 82 of piercer 20 so as to allow free access to sampling surface 47 (See FIG. 4 ) for retrieval of the tissue sample.
  • Distal frame seal 1 is shown assembled into distal end 48 of frame 40 and rotatably supports proximal end 24 of piercing element 25 .
  • Distal frame seal 1 comprises hub 2 and a first O-ring 120 and a second O-ring 121 .
  • Hub 2 further comprises a hub step 19 , wherein hub step 19 is a supporting means for positioning wheel 30 (see FIG. 3 ).
  • a first radial space 122 which is occupied by part of distal frame seal 1 , is defined by the radial clearance between piercer 20 (partially shown) and proximal end 48 of frame 40 .
  • a lower lumen vacuum boss 41 is in alignment between two O-rings 120 and 121 so as to allow vacuum to be delivered through passages 35 and into opening 6 of distal frame seal 1 .
  • First tube 91 (see FIG. 1 ) from first reservoir 90 is a flexible, medical grade tube which may fit tightly over vacuum boss 41 .
  • Proximal end 24 of lower lumen 23 of piercing element 25 is inserted into opening 6 of distal frame seal 1 so that the vacuum may be delivered through lower lumen 23 and to port 26 on distal end 22 of piercer 20 .
  • Proximal frame seal 11 is shown assembled into proximal end 49 of frame 40 and is held in position by a protrusion projecting into hole 36 in frame 40 .
  • the proximal frame seal occupies a second radial space 124 defined by the clearance between flexible cutter tube 53 and proximal end 49 of frame 40 .
  • Proximal frame seal 11 substantially prevents the flow of fluids through the second radial space.
  • second reservoir 94 is a vacuum source which facilitates the removal of the fluids from within probe 10 , and which facilitates the transport of the tissue sample from port 26 to tissue sampling surface 47 (see FIG. 1 ). Because tissue remover 60 is inserted within cutter 50 which is inserted in upper lumen 21 of piercer 20 , the vacuum source is connected to upper lumen 21 as well and assists in drawing tissue into port 26 prior to cutting of the tissue by cutter blade 51 .
  • the vacuum provides a means of releasably attaching the tissue sample to the end of tissue remover 60 so that once severed, the sample may be held in distal end 52 of flexible cutter tube 53 and transported from port 26 of piercer 20 to outside the patient's body to tissue sampling surface 47 of probe 10 .

Abstract

A biopsy probe for the collection of at least one soft tissue sample from a surgical patient. The biopsy probe has a frame and an elongated piercing element having a proximal end attached to the distal end of the frame and a sharpened distal end for piercing tissue. The piercing element has a lumen extending at least partially therethrough. The probe also includes an elongated cutter disposed coaxially and slidably within the lumen of the piercing element. The cutter has a distal end for cutting a tissue sample, a proximal end and a body connecting the distal and proximal ends, wherein at least a portion of the body comprises a flexible member.

Description

    FIELD OF THE INVENTION
  • The present invention relates, in general, to devices for tissue sampling and, more particularly, to improved biopsy probes for acquiring subcutaneous biopsies and for removing lesions.
  • BACKGROUND OF THE INVENTION
  • The diagnosis and treatment of patients with cancerous tumors, pre-malignant conditions, and other disorders has long been an area of intense investigation. Non-invasive methods for examining tissue are palpation, X-ray, MRI, CT, and ultrasound imaging. When the physician suspects that a tissue may contain cancerous cells, a biopsy may be done either in an open procedure or in a percutaneous procedure. For an open procedure, a scalpel is used by the surgeon to create a large incision in the tissue in order to provide direct viewing and access to the tissue mass of interest. Removal of the entire mass (excisional biopsy), or a part of the mass (incisional biopsy) is done. For a percutaneous biopsy, a needle-like instrument is used through a very small incision to access the tissue mass of interest and to obtain a tissue sample for later examination and analysis. The advantages of the percutaneous method as compared to the open method are significant: less recovery time for the patient, less pain, less surgical time, lower cost, less risk of injury to adjacent bodily tissues such as nerves, and less disfigurement of the patient's anatomy. Use of the percutaneous method in combination with artificial imaging devices such as X-ray and ultrasound has resulted in highly reliable diagnoses and treatments.
  • Generally there are two ways to obtain percutaneously a portion of tissue from within the body, by aspiration or by core sampling. Aspiration of the tissue through a fine needle requires the tissue to be fragmented into small enough pieces to be withdrawn in a fluid medium. The method is less intrusive than other known sampling techniques, but one can only examine cells in the liquid (cytology) and not the cells and the structure (pathology). In core biopsy, a core or fragment of tissue is obtained for histologic examination which may be done via a frozen or paraffin section. The type of biopsy used depends mainly on various factors present in the patient, and no single procedure is ideal for all cases. Core biopsy, however, is very useful in a number of conditions and is widely used by physicians.
  • A number of biopsy devices for use in combination with artificial imaging devices are known in the field. An example of a core biopsy device using an artificial imaging system is described in U.S. Pat. Nos. 4,699,154, 4,944,308, and U.S. Pat. No. Re. 34,056. However, these types of spring-powered devices must re-puncture the breast or organ each time a sample is taken. An example of an aspiration device using an artificial imaging system is described in the following U.S. Pat. No.: 5,492,130 issued to Chiou on Feb. 20, 1996; U.S. Pat. No. 5,526,821 issued to Jamshidi on Jun. 18, 1996; U.S. Pat. No. 5,429,138 issue to Jamshidi on Jul. 4, 1995; and U.S. Pat. No. 5,027,827 issued to Cody, et al, on Jul. 2, 1991.
  • Operator error can often be an issue with the above described devices. In addition there was a need for a device which could enable multiple sampling of the tissue without having to re-puncture the tissue for each sample. An example of such a product is described in U.S. Pat. No. 5,526,822 issued to Burbank, et al, on Jun. 18, 1996, which is hereby incorporated herein by reference. The Burbank et al. instrument is a type of image-guided, percutaneous, coring, breast biopsy instrument. It is vacuum-assisted, and some of the steps for retrieving the tissue samples have been automated. The physician uses this device to capture “actively” (using the vacuum) the tissue prior to severing it from the body. This allows for sampling tissues of varying hardness. The device can also be used to collect multiple samples in numerous positions about its longitudinal axis, and without needing to remove the device from the body. These features allow for substantial sampling of large lesions and complete removal of small ones. In the medical arts the instrument is commonly known as MAMMOTOME™.
  • Numerous improvements to the Burbank et al. device have been described in co-pending and commonly assigned U.S. application Ser. No. 08/825,899, filed on Apr. 2, 1997, the disclosure of which is hereby incorporated herein by reference. This reference describes numerous improvements to the original invention including a molded tissue cassette housing which permits the handling and viewing of multiple tissue samples without physical contact by the instrument operator. Another improvement to the original device includes the interconnection of the housing to the piercing needle by a thumbwheel which permits the needle to rotate relative to the housing, thereby preventing the vacuum tube from wrapping about the housing.
  • Other improvements to the above described device are disclosed in U.S. Pat. No. 6,007,497 issued to Huitema on Dec. 28, 1999, which is hereby incorporated herein by reference. This reference describes improvements to the fluid management capabilities of the system, resulting in part from the addition of sealing elements located in critical areas of the biopsy probe.
  • In actual clinical use for breast biopsy, the MAMMOTOME instrument (probe and driver assembly) is mounted to the three axis positioning head of an x-ray imaging machine. The three axis positioning head is located in the area between the x-ray source and the image plate. The x-ray machines are outfitted with a computerized system which requires two x-ray images of the breast be taken with the x-ray source at two different positions in order for the computer to calculate the x, y and z axis location of the suspect abnormality. In order to take the stereo x-ray images the x-ray source must be conveniently movable. The x-ray source therefore is typically mounted to an arm which, at the end opposite the x-ray source, is pivotally mounted to the frame of the machine in the region of the image plate.
  • To image the breast, the breast is placed between the x-ray source and the image plate, the breast being placed on the image plate. In order to take the necessary stereo images the clinician will manually position the x-ray source to one side and then the other of the center axis of the machine (typically 15-20 degrees to each side of the center axis), obtaining an x-ray image on each side of the breast. The computer will then, with great accuracy, calculate the precise x, y and z location of the suspect abnormality in the breast and automatically communicate to the clinician or directly to the positioning head the targeting coordinates for the biopsy device. The clinician can then manually, or automatically, position the biopsy probe into the breast at the precise location of the abnormality.
  • There are generally two styles of x-ray machines in wide spread use for breast imaging. One style is known as “prone”, because the patient lies face down during the x-ray and biopsy procedures on a table that is configured horizontal to the floor. The other style, in more wide spread use, is the “upright”. The center axis of the upright imaging machine is configured vertical to the floor and the patient sits in front of the machine during the x-ray and biopsy procedures.
  • The above described biopsy instruments mount to a three axis positioning head located between the x-ray source and image plate on the breast x-ray imaging machine. The distance between the x-ray source and imaging plate is known in the industry as the SID (Source to Image Distance). There is no standard SID in the industry and in fact the SID varies greatly from one x-ray machine manufacturer to another.
  • This creates a problem for the manufacturers of devices, like the MAMMOTOME, which is intended to be mounted between the x-ray source and image plate of the x-ray imaging machine. In the case of the MAMMOTOME instrument with its length from the distal tip of the biopsy probe to the most proximal portion of the driver measuring approximately 41 centimeters, adequate mounting space has been found to exist on the prone style x-ray machines. However, on some of the more popular upright style x-ray imaging machines the SID has been found to be as little as 29 centimeters, obviously too small in which to mount the MAMMOTOME. What is needed, therefore, is a biopsy instrument configured to permit mounting on the shorter SID x-ray imaging machines.
  • SUMMARY OF THE INVENTION
  • In accordance with the present invention, there is provided a biopsy probe for the collection of at least one soft tissue sample from a surgical patient. The biopsy probe has a frame and an elongated piercing element having a proximal end attached to the distal end of the frame and a sharpened distal end for piercing tissue. The piercing element has a lumen extending at least partially therethrough. The probe also includes an elongated cutter disposed coaxially and slidably within the lumen of the piercing element. The cutter has a distal end for cutting a tissue sample, a proximal end and a body connecting the distal and proximal ends, wherein at least a portion of the body comprises a flexible member.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The novel features of the invention are set forth with particularity in the appended claims. The invention itself, however, both as to organization and methods of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in conjunction with the accompanying drawings in which:
  • FIG. 1 is an isometric view of a biopsy apparatus, showing the biopsy probe of FIG. 2, its insertion into a driver, and schematic representations of a control unit, vacuum sources, and three axis positioning head;
  • FIG. 2 is an isometric view of a biopsy probe of the present invention;
  • FIG. 3 is an exploded isometric view of the biopsy probe of FIG. 2;
  • FIG. 4 is an isometric view of a probe frame of the biopsy probe of FIG. 2;
  • FIG. 5 is a longitudinal sectional view of the probe frame of FIG. 4 illustrating the internal structures assembled into its distal and proximal ends.
  • DETAILED DESCRIPTION OF THE INVENTION
  • As best shown in FIG. 1, the present invention is a surgical biopsy apparatus 12 for a minimally invasively acquiring repeated subcutaneous biopsies. In the present invention, surgical biopsy apparatus 12 generally comprises a probe 10 for insertion within a surgical patient for extraction of a tissue sample therefrom. Apparatus 12 further includes a powered probe driver 100, a three axis positioning head 98, a control unit 96, and a first and second tube in fluid communication with a first, and second reservoir, respectively. In the preferred embodiment, reservoirs 90 and 94 are connected to at least one vacuum source. Probe 10 of surgical biopsy apparatus 12 is removably mounted to powered probe driver 100. The elements shown schematically as boxes in FIG. 1 are well known in the art and are described in the herein incorporated references.
  • Driver 100 is well known in the art and includes a housing 109 having a moveable cover 108 hingedly attached thereto. Within housing 109 there is a housing mount fork 102 for receiving probe 10. Housing 109 also included a cutter advance fork 112 for positioning cutter gear 59, and an elongated driver gear 106 to mate with and rotate cutter 50. Driver 100 is attached to a three axis positioning head 98 which is connected to an x-ray imaging machine having a stereotactic guidance system (not shown). This positioning/guidance system is for moving probe 10 and driver 100 so that the apparatus pierces the tissue at the correct location in order to sample the target lesion. Housing 109 also has a cutter advance knob 113 which is manually actuated to obtain the tissue sample. This feature will be discussed in greater detail below.
  • Control unit 96 is used to control the sequence of actions performed by surgical biopsy apparatus 12 in order to obtain the biopsy sample from a surgical patient. As will be appreciated by those skilled in the art, and as discussed in the hereinbefore incorporated references, control unit 96 preferably controls the application of a vacuum to probe 10, and controls the activation of the cutter motor (not shown) within driver 100.
  • Attention is now drawn to FIG. 2 which is an isometric view of the preferred embodiment of probe 10. Probe 10 is a coaxial assembly of three elongated elements: a piercer 20, a cutter 50, and a tissue remover 60. Tissue remover 60 moves slideably within cutter 50 which, in turn, moves slideably within frame 40 and piercer 20. Cutter 50 and tissue remover 60 contain flexible elements, as will be described later. Probe 10 generally is used as follows: The skin of a surgical patient is disinfected. A local anesthetic such as lidocaine hydrochloride is injected by hypodermic needle into the tissue. A small incision is made in the skin of the surgical patient. Then piercer 20 is placed into that incision and pierced into the tissue of the surgical patient. Piercer 20 is advanced to the tissue area of interest by the movement of three axis positioning head 98. During this step cutter 50 is completely advanced in its distal direction. Once the tissue of interest is accessed by piercer 20, cutter 50 is partially retracted in the proximal direction and the tissue to be extracted is drawn by vacuum into port 26 on distal end 22 of probe 10. Cutter 50 is then actuated by the cutter motor of driver 100 and manually advanced distally using cutter advance knob 113. This severs the tissue sample captured in distal end 22 of probe 10. Afterwards, cutter 50 is manually retracted in the proximal direction, transporting the tissue sample to outside the patient's body. Tissue remover 60 then releases or “knocks-out” the tissue sample from cutter 50, so that the tissue sample may be retrieved for analysis.
  • Referring to FIGS. 2 through 4, piercer 20 includes a frame 40 which may be made from a rigid, medical grade plastic. Frame 40 is generally arcuate in shape, forming an arc of approximately ninety degrees in the preferred embodiment, and may be more or less as may be dictated by the mounting needs for the x-ray imaging machine. Frame 40 has a distal end 48 and a proximal end 49. Frame hole 45 (See FIG. 5) extends longitudinally through frame bushing 46 communicating between the distal end 48 and proximal end 49 of frame 40. A pair of mounting fins 44 are located on proximal end 49 of frame 40. Mounting fins 44 are removably inserted into a mounting fork 102 of driver 100 as depicted in FIG. 1, thus anchoring probe 10 to driver 100.
  • Teeth 38, which comprise a plurality of raised ribs, and marker 39, a single raised rib, are located at the distal end 48 of frame 40 and interface with positioning wheel 30, which will be described in more detail later. Tissue sampling surface 47 at the distal end 48 of frame 40 is where a tissue sample extracted from within the surgical patient is removed from probe 10.
  • Tubular piercing element 25 is well known in the art and has a proximal end 24 and a distal end 22 and is rotatably attached to the proximal end 48 of frame 40 by a hub 2 (See FIG. 5) and a positioning wheel 30. Piercing element 25 is preferably made from plastic or stainless steel and includes an upper lumen 21 and a lower lumen 23. Rectangular port 26 on distal end 22 of piercing element 25 is located on upper lumen 21 and is provided for receiving the tissue that is to be extracted from the surgical patient. Rotation of positioning wheel 30 by the surgeon allows positioning of rectangular port 26 in distal end 22 of piercer 20. A positional indicator 31 on wheel 30 may be referenced to a marker 39 on frame 40 of probe 10. By changing the position of port 26, the surgeon may access tissue from anywhere around distal end 22 of piercer 20. Piercing tip 28 is attached to distal end 22 of piercing element 25 and pierces into the tissue of the surgical patient. Piercer 20 further comprises a lower lumen 23 which has a plurality of small holes (not shown) in distal end 22 for the communication of port 26 to first reservoir 90. In the present embodiment, this first reservoir is a vacuum source so that the prolapse of tissue into port 26 is greatly enhanced.
  • A plurality of teeth 38 are located around the periphery of distal end 48 of frame 40. Teeth 38 are for interaction with flutes 32 (not shown) of positioning wheel 30 (see FIG. 1) so that a tactile feedback is provided to the user while adjusting the location of port 26 on distal end 22 of piercer 20. In addition to the tactile feedback, teeth 38 are a holding means for the orientation of port 26, and also a referencing means. That is, the surgeon may count the number of “detents” felt when rotating positioning wheel 30, while looking at the relationship between positional indicator 31 on wheel 30 and marker 39 on frame 40, in order to understand the radial orientation of port 26 on distal end 22 of piercer 20.
  • Now referring again to FIGS. 1 and 3, cutter 50 comprises a distal end 52, a proximal end 58, and a flexible member extending therebetween. Cutter 50 further comprises a cutter shank 56 having a distal end 57 fixedly attached to a proximal end 54 of a hollow flexible cutter tube 53. Flexible cutter tube 53 can be made of PVC or any other flexible thermoplastic polymer or a superelastic alloy such as nitinol. In an alternate embodiment flexible cutter tube 53 is made of a tubular shape constructed of wound stainless steel wire, similar to a compression spring. A longitudinal passage through cutter shank 56 (not visible) communicates with a longitudinal passage through flexible cutter tube 53. On the distal end of cutter 50 is a cutter blade 51. Cutter blade 51 has a distal end 65 and proximal end 66. Cutter blade 51 is preferably made by the sharpening of the circumference of distal end 65 of cutter blade 51, which is preferably made of a stainless steel. Proximal end 66 of cutter blade 51 is fixedly attached to distal end 67 of flexible cutter tube 53. A longitudinal passage through cutter blade 51 communicates with a longitudinal passage through flexible cutter tube 53. On proximal end 58 of cutter 50 is a cutter gear 59, which is preferably integrally molded with cutter shank 56. A proximal cutter seal 114 is attached to the most proximal end of cutter 50.
  • Cutter gear 59 is for operational engagement with an elongated gear 106 of driver 100. When probe 10 is inserted into driver 100, cutter gear 59 is positioned into cutter advance fork 112 of the driver. Cutter advance fork 112 is attached to cutter advance knob 113 so that movement of knob 113 causes the like movement of cutter 50. Cutter 50 reciprocates axially within upper lumen 21 of piercer 20 as the surgeon manually operates advancing knob 113. As cutter 50 is moved distal and proximal by operation of cutter advance knob 113, cutter gear 59 moves along elongated gear 106 of driver 100, while maintaining operational engagement. The electric motor (not shown) of the driver rotates cutter 50 at a high rate of speed.
  • As best illustrated in FIG. 3, tissue remover 60 comprises a remover tube 63, which has a proximal end 64, a distal end 62, and a longitudinal axis extending therebetween. Tissue remover 60 slides freely through proximal cutter seal 114. On proximal end 64 of remover tube 63 is attached a valve 70 having a distal end 72, a proximal end 74 which contains a Luer connector, and a passageway therethrough. Valve 70 provides for the flow of air and fluids from tissue remover 60 to second reservoir 94 via second tube 95 and a connector 97 (see FIG. 1). Remover tube 63 is hollow and in the present embodiment made of flexible PVC or other flexible thermoplastic resin. In an alternate embodiment, since remover tube 63 is held fixed with reference to probe frame 40, remover tube 63 is made of a rigid material such as stainless steel and pre-formed in an arcuate shape to match the arc of probe frame 40. A distal tip 61 (also referred to simply as a structure) on distal end 62 of remover tube 63 is configured so as to allow the passage of air and fluids and to block the passage of tissue particles larger than what may pass through tissue remover 60 and valve 70. Distal tip 61 prevents the loss of tissue into the reservoir, which may otherwise be collected for pathological analysis. The length of remover tube 63 is such that when cutter 50 is retracted to the first position, distal tip 61 of remover tube 63 is approximately adjacent to cutter blade distal end 65 of cutter blade 51. This arrangement allows the tissue sample retrieved in distal end 52 of cutter 50 to be forced out of the same by distal tip 61 of tissue remover 60 when cutter 50 is retracted to the first position. The tissue sample may then drop onto tissue sample surface 47 of probe 10.
  • Referring now to FIG. 5, flexible cutter tube 53 fits closely yet slides freely in frame hole 45 which extends longitudinally through frame bushing 46 of piercer 20. When cutter 50 is retracted to its most proximal position, cutter blade 51 of cutter 50 is approximately adjacent to frame surface 82 of piercer 20 so as to allow free access to sampling surface 47 (See FIG. 4) for retrieval of the tissue sample.
  • Distal frame seal 1 is shown assembled into distal end 48 of frame 40 and rotatably supports proximal end 24 of piercing element 25. Distal frame seal 1 comprises hub 2 and a first O-ring 120 and a second O-ring 121. Hub 2 further comprises a hub step 19, wherein hub step 19 is a supporting means for positioning wheel 30 (see FIG. 3). A first radial space 122, which is occupied by part of distal frame seal 1, is defined by the radial clearance between piercer 20 (partially shown) and proximal end 48 of frame 40. A lower lumen vacuum boss 41 is in alignment between two O- rings 120 and 121 so as to allow vacuum to be delivered through passages 35 and into opening 6 of distal frame seal 1. First tube 91 (see FIG. 1) from first reservoir 90 is a flexible, medical grade tube which may fit tightly over vacuum boss 41. Proximal end 24 of lower lumen 23 of piercing element 25 is inserted into opening 6 of distal frame seal 1 so that the vacuum may be delivered through lower lumen 23 and to port 26 on distal end 22 of piercer 20.
  • Proximal frame seal 11 is shown assembled into proximal end 49 of frame 40 and is held in position by a protrusion projecting into hole 36 in frame 40. The proximal frame seal occupies a second radial space 124 defined by the clearance between flexible cutter tube 53 and proximal end 49 of frame 40. Proximal frame seal 11 substantially prevents the flow of fluids through the second radial space.
  • It should be noted that second reservoir 94 is a vacuum source which facilitates the removal of the fluids from within probe 10, and which facilitates the transport of the tissue sample from port 26 to tissue sampling surface 47 (see FIG. 1). Because tissue remover 60 is inserted within cutter 50 which is inserted in upper lumen 21 of piercer 20, the vacuum source is connected to upper lumen 21 as well and assists in drawing tissue into port 26 prior to cutting of the tissue by cutter blade 51. In addition to the removal of fluids from probe 10, the vacuum provides a means of releasably attaching the tissue sample to the end of tissue remover 60 so that once severed, the sample may be held in distal end 52 of flexible cutter tube 53 and transported from port 26 of piercer 20 to outside the patient's body to tissue sampling surface 47 of probe 10.
  • While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. Accordingly, it is intended that the invention be limited only by the spirit and scope of the appended claims.

Claims (8)

1-21. (canceled)
22. A biopsy device comprising:
an elongated piercing element having a closed distal tip, a proximal end, and a lumen extending at least partially through the elongated piercing element; and
an elongated cutter having a first part disposed within the lumen of the elongated piercing element, and a second part of the cutter extending proximally from the proximal end of the elongated piercing element, wherein at least a portion of the second part of the cutter extending proximally from the elongated piercing element is flexible for taking on a curved shape.
23. The biopsy device of claim 22 wherein at least a portion of the second part of the cutter is disposed within a curved passageway.
24. The biopsy device of claim 22 wherein a portion of the elongated cutter extends along an arcuate path.
25. The biopsy device of claim 22 wherein a portion of the elongated cutter follows a nonlinear path through an arc of at least about 90 degrees.
26. The biopsy device of claim 22, wherein the cutter is rotatable and translatable within the elongated piercing element.
27. The biopsy device of claim 22 wherein the elongated piercing element comprises a lateral tissue receiving port, wherein the elongated cutter has a distal cutting end supported for generally straight line travel past the lateral tissue receiving port, and wherein the elongated cutter takes on a nonlinear curvature proximal of the lateral tissue receiving port.
28. A medical device for obtaining a tissue sample, the device comprising:
a generally straight, elongated piercing element having a proximal end, a closed distal end with a piercing tip for piercing tissue, a generally straight lumen, and a lateral tissue receiving port spaced proximally of the closed distal end and communicating with the lumen;
an elongated cutter having a proximal end, a distal end for cutting tissue, and a body connecting the distal and proximal ends, wherein the distal end of the cutter is positionable within the lumen of the piercing element, wherein the cutter extends proximally from the lumen of the piercing element, and wherein at least a portion of the cutter extending proximally from the lumen of the piercing element is flexible and capable of taking on a curved shape; and
a member disposed proximally of the proximal end of the elongated piercing element, the member having a curved passageway therein for receiving a flexible portion of the cutter.
US11/172,557 2001-07-19 2005-06-30 Surgical biopsy device having a flexible cutter Abandoned US20050240118A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/172,557 US20050240118A1 (en) 2001-07-19 2005-06-30 Surgical biopsy device having a flexible cutter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/908,893 US6942627B2 (en) 2001-07-19 2001-07-19 Surgical biopsy device having a flexible cutter
US11/172,557 US20050240118A1 (en) 2001-07-19 2005-06-30 Surgical biopsy device having a flexible cutter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/908,893 Division US6942627B2 (en) 2001-07-19 2001-07-19 Surgical biopsy device having a flexible cutter

Publications (1)

Publication Number Publication Date
US20050240118A1 true US20050240118A1 (en) 2005-10-27

Family

ID=25426377

Family Applications (2)

Application Number Title Priority Date Filing Date
US09/908,893 Expired - Fee Related US6942627B2 (en) 2001-07-19 2001-07-19 Surgical biopsy device having a flexible cutter
US11/172,557 Abandoned US20050240118A1 (en) 2001-07-19 2005-06-30 Surgical biopsy device having a flexible cutter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US09/908,893 Expired - Fee Related US6942627B2 (en) 2001-07-19 2001-07-19 Surgical biopsy device having a flexible cutter

Country Status (1)

Country Link
US (2) US6942627B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070106176A1 (en) * 2003-10-14 2007-05-10 Mark Joseph L Vacuum assisted biopsy needle set
US20090082696A1 (en) * 2003-10-14 2009-03-26 Nicoson Zachary R Vacuum assisted biopsy device
US7988642B2 (en) * 2003-10-14 2011-08-02 Suros Surgical Systems, Inc. Vacuum assisted biopsy device
US8231544B2 (en) 2003-10-14 2012-07-31 Suros Surgical Systems, Inc. Vacuum assisted biopsy needle set

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6695848B2 (en) 1994-09-02 2004-02-24 Hudson Surgical Design, Inc. Methods for femoral and tibial resection
JP4064243B2 (en) * 2000-11-06 2008-03-19 スルーズ サージカル システムズ、インク Biological tissue examination device
US6758824B1 (en) * 2000-11-06 2004-07-06 Suros Surgical Systems, Inc. Biopsy apparatus
US8062377B2 (en) 2001-03-05 2011-11-22 Hudson Surgical Design, Inc. Methods and apparatus for knee arthroplasty
US8021368B2 (en) 2004-01-14 2011-09-20 Hudson Surgical Design, Inc. Methods and apparatus for improved cutting tools for resection
US7815645B2 (en) 2004-01-14 2010-10-19 Hudson Surgical Design, Inc. Methods and apparatus for pinplasty bone resection
US8114083B2 (en) 2004-01-14 2012-02-14 Hudson Surgical Design, Inc. Methods and apparatus for improved drilling and milling tools for resection
US9814539B2 (en) 2004-01-14 2017-11-14 Puget Bioventures Llc Methods and apparatus for conformable prosthetic implants
US20060030854A1 (en) 2004-02-02 2006-02-09 Haines Timothy G Methods and apparatus for wireplasty bone resection
US7857814B2 (en) 2004-01-14 2010-12-28 Hudson Surgical Design, Inc. Methods and apparatus for minimally invasive arthroplasty
US8932233B2 (en) 2004-05-21 2015-01-13 Devicor Medical Products, Inc. MRI biopsy device
US9638770B2 (en) 2004-05-21 2017-05-02 Devicor Medical Products, Inc. MRI biopsy apparatus incorporating an imageable penetrating portion
US7708751B2 (en) 2004-05-21 2010-05-04 Ethicon Endo-Surgery, Inc. MRI biopsy device
US7775968B2 (en) 2004-06-14 2010-08-17 Pneumrx, Inc. Guided access to lung tissues
US7766891B2 (en) 2004-07-08 2010-08-03 Pneumrx, Inc. Lung device with sealing features
WO2006014567A2 (en) 2004-07-08 2006-02-09 Pneumrx, Inc. Pleural effusion treatment device, method and material
EP1816945B1 (en) 2004-11-23 2019-08-21 PneumRx, Inc. Steerable device for accessing a target site
US7556622B2 (en) * 2005-05-18 2009-07-07 Suros Surgical Systems, Inc. Selectively openable tissue filter
US7670299B2 (en) * 2006-03-07 2010-03-02 Ethincon Endo-Surgery, Inc. Device for minimally invasive internal tissue removal
US7806834B2 (en) * 2006-03-07 2010-10-05 Devicor Medical Products, Inc. Device for minimally invasive internal tissue removal
US8721734B2 (en) 2009-05-18 2014-05-13 Pneumrx, Inc. Cross-sectional modification during deployment of an elongate lung volume reduction device
US8157837B2 (en) 2006-03-13 2012-04-17 Pneumrx, Inc. Minimally invasive lung volume reduction device and method
US8888800B2 (en) 2006-03-13 2014-11-18 Pneumrx, Inc. Lung volume reduction devices, methods, and systems
US9402633B2 (en) 2006-03-13 2016-08-02 Pneumrx, Inc. Torque alleviating intra-airway lung volume reduction compressive implant structures
US7465278B2 (en) * 2006-03-29 2008-12-16 Ethicon Endo-Surgery, Inc. Device for minimally invasive internal tissue removal
US8202229B2 (en) * 2007-10-01 2012-06-19 Suros Surgical Systems, Inc. Surgical device
US8808200B2 (en) 2007-10-01 2014-08-19 Suros Surgical Systems, Inc. Surgical device and method of using same
US20090264987A1 (en) * 2008-04-18 2009-10-22 Medtronic Vascular, Inc. Stent Graft Delivery System and Method of Use
US8632605B2 (en) 2008-09-12 2014-01-21 Pneumrx, Inc. Elongated lung volume reduction devices, methods, and systems
US8529468B2 (en) 2009-07-01 2013-09-10 Suros Surgical Systems, Inc. Surgical system
US8348929B2 (en) 2009-08-05 2013-01-08 Rocin Laboratories, Inc. Endoscopically-guided tissue aspiration system for safely removing fat tissue from a patient
US8465471B2 (en) 2009-08-05 2013-06-18 Rocin Laboratories, Inc. Endoscopically-guided electro-cauterizing power-assisted fat aspiration system for aspirating visceral fat tissue within the abdomen of a patient
EP2838435B1 (en) 2012-04-16 2020-03-25 Hathaway, Jeff M. Biopsy device
KR101441518B1 (en) * 2012-12-06 2014-09-17 광주과학기술원 Diagonosis probe
US9622726B2 (en) * 2013-11-26 2017-04-18 Hologic, Inc. Biopsy device latching assembly
US10390838B1 (en) 2014-08-20 2019-08-27 Pneumrx, Inc. Tuned strength chronic obstructive pulmonary disease treatment

Citations (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250892A (en) * 1977-10-24 1981-02-17 Chinoin Gyogyszer Es Vegyeszett Termekek Gyara Apparatus for the removal of contents of body cavities by suction and/or for sampling during an operation
US4320761A (en) * 1979-02-06 1982-03-23 Haddad Heskel M Surgical device for excision of tissue
US4535773A (en) * 1982-03-26 1985-08-20 Inbae Yoon Safety puncturing instrument and method
US4823685A (en) * 1985-03-28 1989-04-25 Boumans Peter M Apparatus for preparing hot drinks
US4935005A (en) * 1985-06-05 1990-06-19 Nestle, S.A. Opthalmic fluid flow control system
US5027827A (en) * 1990-03-28 1991-07-02 Cody Michael P Vacuum biopsy apparatus
US5197484A (en) * 1990-09-18 1993-03-30 Peb Biopsy Corporation Method and device for precutaneous excisional breast biopsy
US5213110A (en) * 1992-03-16 1993-05-25 Du-Kedem Projects Ltd. Pistol-grip vacuum soft tissue biopsy device
US5224470A (en) * 1990-02-28 1993-07-06 Angiomed Ag Apparatus for biopsy sampling with needle and stylet moveable in opposite directions
US5236334A (en) * 1991-12-16 1993-08-17 Bennett Lavon L Core biopsy needle units for use with automated biopsy guns
US5243994A (en) * 1990-03-16 1993-09-14 Ryder International Corporation Instrument for tissue sampling including a carriage assembly
US5249583A (en) * 1991-02-01 1993-10-05 Vance Products Incorporated Electronic biopsy instrument with wiperless position sensors
US5249582A (en) * 1991-08-30 1993-10-05 Hart Enterprises Oriented biopsy needle assembly
US5275609A (en) * 1990-06-22 1994-01-04 Vance Products Incorporated Surgical cutting instrument
US5282476A (en) * 1990-11-07 1994-02-01 Terwilliger Richard A Biopsy apparatus with tapered vacuum chamber
US5284156A (en) * 1991-08-30 1994-02-08 M3 Systems, Inc. Automatic tissue sampling apparatus
US5333619A (en) * 1992-02-19 1994-08-02 Burgio Vito L Method for rigid tissue biopsy
US5341816A (en) * 1989-11-06 1994-08-30 Allen William C Biopsy device
US5353804A (en) * 1990-09-18 1994-10-11 Peb Biopsy Corporation Method and device for percutaneous exisional breast biopsy
US5368045A (en) * 1989-07-18 1994-11-29 Boston Scientific Corporation Biopsy needle instrument
US5394887A (en) * 1994-01-14 1995-03-07 Haaga; John R. Biopsy needle
US5400798A (en) * 1989-03-29 1995-03-28 Baran; Gregory W. Automated biopsy instrument
US5403276A (en) * 1993-02-16 1995-04-04 Danek Medical, Inc. Apparatus for minimally invasive tissue removal
US5409013A (en) * 1989-11-06 1995-04-25 Mectra Labs, Inc. Tissue removal assembly
US5415182A (en) * 1992-05-11 1995-05-16 Boston Scientific Corporation Multiple needle biopsy instrument
US5458112A (en) * 1994-08-15 1995-10-17 Arrow Precision Products, Inc. Biliary biopsy device
US5487392A (en) * 1993-11-15 1996-01-30 Haaga; John R. Biopxy system with hemostatic insert
US5492130A (en) * 1991-06-04 1996-02-20 Chiou; Rei-Kwen Biopsy device and method
US5505210A (en) * 1989-11-06 1996-04-09 Mectra Labs, Inc. Lavage with tissue cutting cannula
US5507298A (en) * 1994-09-23 1996-04-16 M3 Systems, Inc., D/B/A/ Manan Medical Products, Inc. Forward-fired automatic tissue sampling apparatus
US5511556A (en) * 1994-04-11 1996-04-30 Desantis; Stephen A. Needle core biopsy instrument
US5526822A (en) * 1994-03-24 1996-06-18 Biopsys Medical, Inc. Method and apparatus for automated biopsy and collection of soft tissue
US5526821A (en) * 1993-06-03 1996-06-18 Medical Biopsy, Inc. Biopsy needle with sample retaining means
US5535755A (en) * 1989-07-22 1996-07-16 Heske; Norbert Tissue sampler
US5560373A (en) * 1994-04-11 1996-10-01 De Santis; Stephen A. Needle core biopsy instrument with durable or disposable cannula assembly
US5562102A (en) * 1994-11-21 1996-10-08 Taylor; Thomas V. Multiple biopsy device
US5564436A (en) * 1995-09-21 1996-10-15 Hakky; Said I. Automatic rotating cassette multiple biopsy device
US5573008A (en) * 1993-10-29 1996-11-12 Boston Scientific Corporation Multiple biopsy sampling coring device
US5595185A (en) * 1994-08-11 1997-01-21 N.M.B. Medical Applications Ltd. Single puncture multi-biopsy gun
US5603724A (en) * 1995-02-13 1997-02-18 Tnco, Inc. Suction punch
US5607389A (en) * 1992-08-12 1997-03-04 Vidamed, Inc. Medical probe with biopsy stylet
US5615690A (en) * 1995-02-15 1997-04-01 Symbiosis Corporation Tissue core biopsy cannula
US5643304A (en) * 1993-02-16 1997-07-01 Danek Medical, Inc. Method and apparatus for minimally invasive tissue removal
US5649547A (en) * 1994-03-24 1997-07-22 Biopsys Medical, Inc. Methods and devices for automated biopsy and collection of soft tissue
US5685838A (en) * 1995-04-17 1997-11-11 Xomed-Treace, Inc. Sinus debrider apparatus
US5697898A (en) * 1996-05-31 1997-12-16 Surgical Design Corporation Automated free flow mechanism for use in phacoemulsification, irrigation and aspiration of the eye
US5769086A (en) * 1995-12-06 1998-06-23 Biopsys Medical, Inc. Control system and method for automated biopsy device
US6007497A (en) * 1998-06-30 1999-12-28 Ethicon Endo-Surgery, Inc. Surgical biopsy device
US6019733A (en) * 1997-09-19 2000-02-01 United States Surgical Corporation Biopsy apparatus and method
US6053907A (en) * 1998-08-13 2000-04-25 Endius Incorporated Surgical instruments with flexible drive shaft
US6419641B1 (en) * 2000-11-28 2002-07-16 Promex, Llc Flexible tip medical instrument
US6471709B1 (en) * 1998-10-30 2002-10-29 Vivant Medical, Inc. Expandable ring percutaneous tissue removal device
US6514215B1 (en) * 1999-10-13 2003-02-04 Pentax Corporation Endoscopic tissue collecting instrument

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668359B1 (en) * 1990-10-24 1998-02-20 Gen Electric Cgr MAMMOGRAPH PROVIDED WITH A PERFECTED NEEDLE HOLDER.
WO1994015533A2 (en) * 1993-01-18 1994-07-21 John Crowe Endoscope forceps
US5554098A (en) * 1993-02-26 1996-09-10 Olympus Optical Co., Ltd. Endoscope system including endoscope and disposable protection cover
US5318528A (en) * 1993-04-13 1994-06-07 Advanced Surgical Inc. Steerable surgical devices
US5601585A (en) * 1994-02-08 1997-02-11 Boston Scientific Corporation Multi-motion side-cutting biopsy sampling device
AU686165B2 (en) 1994-04-07 1998-02-05 Derio Medical Instruments Ltd. Device for removal of intraluminal occlusions
DE69517463T2 (en) * 1994-04-15 2001-03-08 Smith & Nephew Inc Curved surgical instrument with segmented inner element
US5398690A (en) * 1994-08-03 1995-03-21 Batten; Bobby G. Slaved biopsy device, analysis apparatus, and process
KR100363291B1 (en) * 1994-12-27 2003-05-09 세키스이가세이힝코교가부시키가이샤 Continuous manufacturing method and apparatus for thermoplastic polyester resin foam
ATE270854T1 (en) * 1995-03-31 2004-07-15 Boston Scient Ltd BIOPSY SAMPLER
US5782795A (en) 1995-06-30 1998-07-21 Xomed Surgical Products, Inc. Surgical suction cutting instrument with internal irrigation
US5782775A (en) 1995-10-20 1998-07-21 United States Surgical Corporation Apparatus and method for localizing and removing tissue
US5827305A (en) * 1996-01-24 1998-10-27 Gordon; Mark G. Tissue sampling device
US6027514A (en) * 1997-12-17 2000-02-22 Fox Hollow Technologies, Inc. Apparatus and method for removing occluding material from body lumens
US6875182B2 (en) * 1998-03-03 2005-04-05 Senorx, Inc. Electrosurgical specimen-collection system
US6149607A (en) * 1998-08-04 2000-11-21 Endonetics, Inc. Multiple sample biopsy device
US6022362A (en) * 1998-09-03 2000-02-08 Rubicor Medical, Inc. Excisional biopsy devices and methods
US6325796B1 (en) * 1999-05-04 2001-12-04 Afx, Inc. Microwave ablation instrument with insertion probe

Patent Citations (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250892A (en) * 1977-10-24 1981-02-17 Chinoin Gyogyszer Es Vegyeszett Termekek Gyara Apparatus for the removal of contents of body cavities by suction and/or for sampling during an operation
US4320761A (en) * 1979-02-06 1982-03-23 Haddad Heskel M Surgical device for excision of tissue
US4535773A (en) * 1982-03-26 1985-08-20 Inbae Yoon Safety puncturing instrument and method
US4823685A (en) * 1985-03-28 1989-04-25 Boumans Peter M Apparatus for preparing hot drinks
US4935005A (en) * 1985-06-05 1990-06-19 Nestle, S.A. Opthalmic fluid flow control system
US5400798A (en) * 1989-03-29 1995-03-28 Baran; Gregory W. Automated biopsy instrument
US5368045A (en) * 1989-07-18 1994-11-29 Boston Scientific Corporation Biopsy needle instrument
US5535755A (en) * 1989-07-22 1996-07-16 Heske; Norbert Tissue sampler
US5341816A (en) * 1989-11-06 1994-08-30 Allen William C Biopsy device
US5505210A (en) * 1989-11-06 1996-04-09 Mectra Labs, Inc. Lavage with tissue cutting cannula
US5409013A (en) * 1989-11-06 1995-04-25 Mectra Labs, Inc. Tissue removal assembly
US5224470A (en) * 1990-02-28 1993-07-06 Angiomed Ag Apparatus for biopsy sampling with needle and stylet moveable in opposite directions
US5243994A (en) * 1990-03-16 1993-09-14 Ryder International Corporation Instrument for tissue sampling including a carriage assembly
US5027827A (en) * 1990-03-28 1991-07-02 Cody Michael P Vacuum biopsy apparatus
US5275609A (en) * 1990-06-22 1994-01-04 Vance Products Incorporated Surgical cutting instrument
US5197484A (en) * 1990-09-18 1993-03-30 Peb Biopsy Corporation Method and device for precutaneous excisional breast biopsy
US5353804A (en) * 1990-09-18 1994-10-11 Peb Biopsy Corporation Method and device for percutaneous exisional breast biopsy
US5282476A (en) * 1990-11-07 1994-02-01 Terwilliger Richard A Biopsy apparatus with tapered vacuum chamber
US5249583A (en) * 1991-02-01 1993-10-05 Vance Products Incorporated Electronic biopsy instrument with wiperless position sensors
US5492130A (en) * 1991-06-04 1996-02-20 Chiou; Rei-Kwen Biopsy device and method
US5249582A (en) * 1991-08-30 1993-10-05 Hart Enterprises Oriented biopsy needle assembly
US5284156A (en) * 1991-08-30 1994-02-08 M3 Systems, Inc. Automatic tissue sampling apparatus
US5236334A (en) * 1991-12-16 1993-08-17 Bennett Lavon L Core biopsy needle units for use with automated biopsy guns
US5333619A (en) * 1992-02-19 1994-08-02 Burgio Vito L Method for rigid tissue biopsy
US5213110A (en) * 1992-03-16 1993-05-25 Du-Kedem Projects Ltd. Pistol-grip vacuum soft tissue biopsy device
US5415182A (en) * 1992-05-11 1995-05-16 Boston Scientific Corporation Multiple needle biopsy instrument
US5607389A (en) * 1992-08-12 1997-03-04 Vidamed, Inc. Medical probe with biopsy stylet
US5669876A (en) * 1993-02-16 1997-09-23 Danek Medical, Inc. Method for minimally invasive tissue removal
US5643304A (en) * 1993-02-16 1997-07-01 Danek Medical, Inc. Method and apparatus for minimally invasive tissue removal
US5685840A (en) * 1993-02-16 1997-11-11 Danek Medical, Inc. Method and apparatus for minimally invasive tissue removal
US5403276A (en) * 1993-02-16 1995-04-04 Danek Medical, Inc. Apparatus for minimally invasive tissue removal
US5526821A (en) * 1993-06-03 1996-06-18 Medical Biopsy, Inc. Biopsy needle with sample retaining means
US5573008A (en) * 1993-10-29 1996-11-12 Boston Scientific Corporation Multiple biopsy sampling coring device
US5487392A (en) * 1993-11-15 1996-01-30 Haaga; John R. Biopxy system with hemostatic insert
US5394887A (en) * 1994-01-14 1995-03-07 Haaga; John R. Biopsy needle
US5928164A (en) * 1994-03-24 1999-07-27 Ethicon Endo-Surgery, Inc. Apparatus for automated biopsy and collection of soft tissue
US5775333A (en) * 1994-03-24 1998-07-07 Ethicon Endo-Surgery, Inc. Apparatus for automated biopsy and collection of soft tissue
US5526822A (en) * 1994-03-24 1996-06-18 Biopsys Medical, Inc. Method and apparatus for automated biopsy and collection of soft tissue
US5649547A (en) * 1994-03-24 1997-07-22 Biopsys Medical, Inc. Methods and devices for automated biopsy and collection of soft tissue
US5511556A (en) * 1994-04-11 1996-04-30 Desantis; Stephen A. Needle core biopsy instrument
US5560373A (en) * 1994-04-11 1996-10-01 De Santis; Stephen A. Needle core biopsy instrument with durable or disposable cannula assembly
US5595185A (en) * 1994-08-11 1997-01-21 N.M.B. Medical Applications Ltd. Single puncture multi-biopsy gun
US5458112A (en) * 1994-08-15 1995-10-17 Arrow Precision Products, Inc. Biliary biopsy device
US5507298A (en) * 1994-09-23 1996-04-16 M3 Systems, Inc., D/B/A/ Manan Medical Products, Inc. Forward-fired automatic tissue sampling apparatus
US5562102A (en) * 1994-11-21 1996-10-08 Taylor; Thomas V. Multiple biopsy device
US5603724A (en) * 1995-02-13 1997-02-18 Tnco, Inc. Suction punch
US5615690A (en) * 1995-02-15 1997-04-01 Symbiosis Corporation Tissue core biopsy cannula
US5685838A (en) * 1995-04-17 1997-11-11 Xomed-Treace, Inc. Sinus debrider apparatus
US5564436A (en) * 1995-09-21 1996-10-15 Hakky; Said I. Automatic rotating cassette multiple biopsy device
US5769086A (en) * 1995-12-06 1998-06-23 Biopsys Medical, Inc. Control system and method for automated biopsy device
US5697898A (en) * 1996-05-31 1997-12-16 Surgical Design Corporation Automated free flow mechanism for use in phacoemulsification, irrigation and aspiration of the eye
US6019733A (en) * 1997-09-19 2000-02-01 United States Surgical Corporation Biopsy apparatus and method
US6007497A (en) * 1998-06-30 1999-12-28 Ethicon Endo-Surgery, Inc. Surgical biopsy device
US6053907A (en) * 1998-08-13 2000-04-25 Endius Incorporated Surgical instruments with flexible drive shaft
US6471709B1 (en) * 1998-10-30 2002-10-29 Vivant Medical, Inc. Expandable ring percutaneous tissue removal device
US6514215B1 (en) * 1999-10-13 2003-02-04 Pentax Corporation Endoscopic tissue collecting instrument
US6419641B1 (en) * 2000-11-28 2002-07-16 Promex, Llc Flexible tip medical instrument

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070106176A1 (en) * 2003-10-14 2007-05-10 Mark Joseph L Vacuum assisted biopsy needle set
US20090082696A1 (en) * 2003-10-14 2009-03-26 Nicoson Zachary R Vacuum assisted biopsy device
US7988642B2 (en) * 2003-10-14 2011-08-02 Suros Surgical Systems, Inc. Vacuum assisted biopsy device
US8048003B2 (en) * 2003-10-14 2011-11-01 Suros Surgical Systems, Inc. Vacuum assisted biopsy device
US20120078133A1 (en) * 2003-10-14 2012-03-29 Nicoson Zachary R Vacuum assisted biopsy device
US8231544B2 (en) 2003-10-14 2012-07-31 Suros Surgical Systems, Inc. Vacuum assisted biopsy needle set
US8357103B2 (en) 2003-10-14 2013-01-22 Suros Surgical Systems, Inc. Vacuum assisted biopsy needle set
US8430827B2 (en) * 2003-10-14 2013-04-30 Suros Surgical Sysytems, Inc. Vacuum assisted biopsy device
US8679032B2 (en) 2003-10-14 2014-03-25 Suros Surgical Systems, Inc. Vacuum assisted biopsy needle set

Also Published As

Publication number Publication date
US20030018281A1 (en) 2003-01-23
US6942627B2 (en) 2005-09-13

Similar Documents

Publication Publication Date Title
US6942627B2 (en) Surgical biopsy device having a flexible cutter
US6007497A (en) Surgical biopsy device
US7419472B2 (en) Biopsy instrument with internal specimen collection mechanism
US7769426B2 (en) Method for using an MRI compatible biopsy device with detachable probe
EP1356773B1 (en) Localization mechanism for an MRI compatible biopsy device
JP3769288B2 (en) Biopsy instrument for obtaining tissue samples
US6638235B2 (en) Biopsy apparatus
US6077230A (en) Biopsy instrument with removable extractor
US8109886B2 (en) Biopsy apparatus
EP1356772B1 (en) MRI compatible biopsy device with detachable probe
US20020138020A1 (en) Micro-invasive breast biopsy device
WO2002062231A2 (en) Biopsy apparatus and method
WO2002062227A1 (en) Biopsy apparatus and method
WO2002062228A1 (en) Biopsy apparatus and method
WO2002062232A1 (en) Biopsy apparatus and method
WO2002062229A2 (en) Biopsy apparatus and method
WO2002062230A1 (en) Biopsy apparatus and method
EP1820453B1 (en) An MRI compatible biopsy device with detachable probe

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: DEVICOR MEDICAL PRODUCTS, INC., WISCONSIN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ETHICON ENDO-SURGERY, INC.;REEL/FRAME:024656/0606

Effective date: 20100709

AS Assignment

Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT, MA

Free format text: SECURITY AGREEMENT;ASSIGNOR:DEVICOR MEDICAL PRODUCTS, INC.;REEL/FRAME:024672/0088

Effective date: 20100709