WO2000057797A1 - Device and method for resecting body tissues - Google Patents
Device and method for resecting body tissues Download PDFInfo
- Publication number
- WO2000057797A1 WO2000057797A1 PCT/US2000/007713 US0007713W WO0057797A1 WO 2000057797 A1 WO2000057797 A1 WO 2000057797A1 US 0007713 W US0007713 W US 0007713W WO 0057797 A1 WO0057797 A1 WO 0057797A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cannula
- resecting device
- tissue
- hollow
- resecting
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
- A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320783—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions through side-hole, e.g. sliding or rotating cutter inside catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
- A61B18/082—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00681—Aspects not otherwise provided for
- A61B2017/00685—Archimedes screw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
- A61B2017/320775—Morcellators, impeller or propeller like means
Definitions
- the present invention relates to a resecting device and method for excision and removal of tissue from a patient's body and, more particularly, to a resecting cannula formed with resecting teeth and a hollow, and provided with rotary motion, such that when operated to rotate and contacted with a tissue, the tissue is excised into, and retained within, the hollow of the cannula.
- the device in accordance with preferred embodiments of the teachings of the present invention is provided with a heating device, such that blood homeostasis can be effected, and/or with a dedicated mechanism for collecting the resected tissue for later analysis.
- procedures utilizing such devices include removal of the prostate in urological procedures, removal of the ovaries and lesions in gynecological procedures, removal of the gallbladder and kidney/gall stones in gastrointestinal procedures, removal of plaques in cardiovascular procedures, and ophthalmologic procedures for treatment of cataracts.
- tissue removal devices and systems such as resectors and rasps have been devised within the last decade to perform diseconomy procedures.
- One such device is employed in the field of neurosurgery, and is used specifically for the removal of tumors, blood clots, lesions, aneurysms or membranes.
- This device is described in U.S. Reissue Pat. No. 33,258 to Onik.
- tissue to be removed is drawn by suction into a central bore of an outer cutting sleeve.
- a pneumatically driven inner cutting sleeve operates as a guillotine to resect the tissue.
- the tissue is suspended in a saline irrigation fluid which also assists in aspiration of the resected tissue through the inner cutting sleeve.
- tissue removal devices which generally involve the use of motorized pneumatically driven guillotine, reciprocating blade, or rotary type cutters suffer from several shortcomings.
- One problem characteristic of these devices is that tissue is often torn, rather than sliced cleanly.
- the tissue has a tendency to become “spooled” or wound around the cutter or its drive shaft, thereby clogging or stalling the cutter.
- cannulas possessing either guillotine or reciprocating blade cutter mechanisms can only excise tissue of a shape resectable by such cutting blade mechanisms, and as such, these devices are implementable within a narrow range of resection applications.
- a resecting device for use in tissue removal, comprising (a) a cannula having a hollow and a longitudinal axis, the cannula being sized for introduction into a body and formed with at least one cutting opening having a cutting edge; and (b) a rotating mechanism connectable through a shaft to the cannula for rotating the cannula around the longitudinal axis thereof, such that when contacted with a tissue and rotated, the cutting edge of the at least one cutting opening dissects the tissue and directs the dissected tissue through the opening and into the hollow of the cannula.
- a surgical procedure of tissue excision in a preselected region in a body comprising the steps of (a) providing a resecting device, including a cannula having a hollow and a longitudinal axis, the cannula being sized for introduction into the body and being formed with at least one cutting opening having a cutting edge; (b) inserting the cannula into the preselected region in the body; and (c) contacting the cannula with a tissue to be excised and rotating the cannula via a rotating mechanism, such that the cutting edge of the at least one cutting opening dissects the tissue and directs the dissected tissue through the opening and into the hollow.
- the surgical procedure is selected from the group consisting of a urological procedure, a gynecological procedure, a gastrointestinal procedure, a cardiovascular procedure, a neurological procedure and an ophthalmologic procedure.
- the rotating mechanism is for rotating the cannula in reciprocal rotary motion.
- the cannula is formed with at least two cutting openings, the at least two cutting openings are positioned in an opposing configuration on at least a portion of the cannula.
- the resecting device further comprises a non-rotating protective sleeve covering at least a portion of the shaft.
- the resecting device further comprises a handpiece, the handpiece being for guiding the cannula into a preselected region of the body.
- the resecting device further comprises a tissue collecting chamber, the chamber being in fluid communication with the hollow such that tissue collected in the hollow is transportable to the chamber.
- the tissue collecting chamber is in fluid communication with the hollow through a channel formed within the shaft.
- the tissue collection chamber is in fluid communication with the hollow through a tube.
- the resecting device further comprises a conveying mechanism in the hollow of the cannula, the conveying mechanism being for conveying the dissected tissue within the cannula or from the cannula to the collecting chamber, if present.
- the conveying mechanism includes an Archimedes screw.
- the Archimedes screw is counter rotatable relative to the cannula.
- the Archimedes screw is stationary.
- the resecting device further comprises a pump, the pump being in fluid communication with the collecting chamber and being for pumping the dissected tissue from the cannula and into the collecting chamber.
- the handpiece includes a motor connected to the shaft, the motor serves for rotating the cannula.
- the resecting device further comprises an imaging system for intrabody monitoring a procedure being effected by the resecting device.
- both the sleeve and the shaft are flexible, so as to assist in spatial positioning of the cannula in the body.
- the cannula is formed with a plurality of cutting openings, the plurality of cutting openings are circumferencely positioned on at least a portion of the cannula.
- the cannula has a shape selected from the group consisting of a cone-shape, a cylindrical shape and a spherical shape.
- the resecting device further comprises a heating device, the heating device being for heating the tissue.
- the heating device includes a friction element, the friction element is contactable with a portion of the cannula, so as to generate heat thereat.
- the heating device includes a heating wire.
- the resecting device further comprises a temperature sensor for sensing the heat.
- the present invention successfully addresses the shortcomings of the presently known configurations by providing a resecting device which is highly effective in tissue removal and collection.
- FIG. 1 is a perspective view of a resecting device including a cutaway image of a cannula thereof, according to one embodiment of the present invention
- FIG. 2a.1 is a perspective view of a resecting device according to another embodiment of the present invention.
- FIG. 2a.2 is a perspective cutaway view of the cannula shown in Figure 2a.1 ;
- FIG. 2b is a magnification of a distal portion of the cannula of Figure 2a;
- FIG. 3 is a perspective view of a resecting device including a cutaway image of the cannula, according to yet another embodiment of the present invention.
- FIGs. 4a-g are perspective views of some cannula forms used by the present invention.
- FIG. 5 is a cross sectional view of a cannula including an Archimedes screw according to still another embodiment of the present invention.
- FIG. 6 is a cross sectional view of a cannula serving also as a tissue collecting chamber, according to yet another embodiment of the present invention.
- FIG. 7 is a perspective view of a resecting device of the present invention shown to be positionally effected
- FIGs. 8-9 are cross sectional views of cannulas supplemented with a friction based heating device according to yet another embodiments of the present invention.
- FIG. 10 is a cross sectional view of a cannula supplemented with a wire based heating device according to still another embodiment of the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
- the present invention is of a resecting device and method which can be employed in tissue resection procedures of a variety of body tissues. Specifically, the present invention can be used to dissect and collect (i.e., resect) various tissues from various regions of the body in a precise rapid and efficient manner, such that damage to surrounding tissues and the length of the procedure are both minimized.
- resection refers to a process involving dissection and collection of body tissues.
- tissue removal for use in tissue removal from a body.
- tissue removal as effected by the resecting device of the present invention, is typically employed in procedures, such as, but not limited to, urological procedures, e.g., trans-urethral resection of the prostate (TURP), gynecological procedures, gastrointestinal procedures, cardiovascular procedures, neurological procedures and ophthalmologic procedures.
- urological procedures e.g., trans-urethral resection of the prostate (TURP)
- gynecological procedures e.g., trans-urethral resection of the prostate (TURP)
- gynecological procedures e.g., trans-urethral resection of the prostate (TURP)
- gastrointestinal procedures e.g., gynecological procedures
- cardiovascular procedures e.gynecological procedures
- neurological procedures e.g., ophthalmologic procedures.
- the resecting device of the present invention collects the dissected tissue
- tissue biopsy can also be used in various procedures in which tissue biopsy is needed.
- Such procedures can include, but are not limited to, removal of tissue masses suspected of tumorogenicity.
- Resecting device 10 includes a cannula 12 having a hollow 14.
- Cannula 12 is sized for introduction into a body, and as such, cannula 12 is preferably between 1 and 20 mm. More preferably between 2 and 7 mm, most preferably between 3 and 6 mm in diameter, depending on the specific application.
- cannula 12 of resecting device 10 can acquire a variety of shapes and designs, such as. but not limited to, spherical shapes 16, conical shapes 18, and cylindrical shapes 20. Regardless of its shape, cannula 12 is attachable/detachable onto resecting device 10 through a dedicated coupler 21 which is preferably formed with a holding grove 23 at a distal end thereof.
- a dedicated coupler 21 which is preferably formed with a holding grove 23 at a distal end thereof.
- other coupling mechanisms such as pins, are also envisaged.
- Coupler 21 is designed such that a fixed attachment of cannula 12 according to any of its configurations, as depicted, for example, in Figures 4a-g, to resecting device 10 is effected in a removable manner, so as to allow for the selection and employment of a cannula most suitable for any specific application.
- a conical cannula 18 shown in Figures 4b and 4e-g
- a TURP procedure in which enlargement and unblocking of a urethral prostate is performed.
- cannula 12 is preferably formed with cutting openings 22, two of which are shown in Figure 1-, however any appropriate number of cutting openings is envisaged, from a single opening to several hundreds of openings.
- Each of cutting openings 22 includes a cutting edge 24 for cutting the tissue to be removed.
- cutting edge is made of a material which can provide a high degree of sharpness such as, but not limited to, steel or ceramics.
- cutting openings 22 are arranged on a circumference of cannula 12 (several possible arrangements are shown in Figures 4e-g), either in the same cutting direction or in an opposing configuration.
- at least one cutting opening 22 (two are shown in, for example, Figure 4d) is formed at a proximal end 21 of cannula 12.
- Resecting device 10 further includes a rotating mechanism 26 to which cannula 12 is attached.
- Mechanism 26 can be rotated, for example, by means of an electrical or pneumatic motor.
- Rotating mechanism 26 and the controls thereof can be housed within a handpiece 32 which is used to operate device 10 by directing cannula 12 to a specific region in the body.
- rotating mechanism 26 is mounted on a carriage which does not form an integral part of resecting device 10. In both configurations, however, cannula 12 is preferably connected to rotating mechanism 26 through a dedicated driving shaft, as is further described hereinunder.
- rotating mechanism 26 is connected through a shaft 28 to cannula 12 and provides cannula 12 with rotary motion around a longitudinal axis thereof. At least a portion of shaft 28 is preferably covered by a protecting sleeve 30 for protecting the body from the rotary motion of shaft 28. In addition, both shaft 28 and sleeve 30 are preferably flexible, so as to enable freedom in guiding cannula 12 within the body.
- both sleeve 30 and shaft 28 are composed of flexible materials and/or structures, such as. but not limited to, plastics, polymers and metals, in, for example a spiral spring design.
- sleeve 30 and shaft 28 can be articulated.
- Cannula 12 is preferably provided with a rotary motion in one direction around the longitudinal axis thereof, or alternatively cannula 12 can be rotated in a reciprocating motion. In the latter case, cannula 12 is integrated in a resecting device provided with a reciprocating motion and is formed with opposing cutting openings 22 (as specifically shown in Figure 4e), such that, for example, a specific tissue within the body can be excised without inflicting damage on surrounding tissues.
- resecting device 10 is provided with controls housed within handpiece 32, such that a user can select between modes of unidirectional rotary motion or reciprocating rotary motion.
- a potentiometer is preferably employed for controlling the speed of rotation.
- cutting edges 24 of cutting openings 22 are designed so as to dissect the tissue and direct the dissected tissue through the openings into hollow 14 of cannula 12.
- cutting openings 22 are preferably "tear drop"-shaped and are formed each with a semicircular and protruding opening, which forms cutting edge 24. Tissue collected within hollow 14 can be used for later analysis.
- tissue collected by cannula 12 is transported to a distal portion 15 of hollow 14 and collected within distal portion 15 of hollow 14 until cannula 12 is removed from the body, such that resected tissues can be collected by a user and cannula 12 disposed or reused thereafter.
- cannula 12 is preferably further provided with a conveying mechanism in hollow 14. The operation of such a conveying mechanism and specific examples thereof are provided hereinunder.
- resecting device 10 further includes a tissue collecting chamber 34.
- Chamber 34 is in fluid communication with hollow 14 of cannula 12, such that tissue collected in hollow 14 by and through cutting openings 22 is transported to chamber 34.
- transporting of the dissected tissue to chamber 34 is effected by one of several alternative mechanisms. As shown in Figure 1, tissue collected within hollow 14 of cannula
- tube 36 is connected to hollow 14 outside of sleeve 30.
- tube 36 can extend within a space formed between sleeve 30 and shaft 28.
- resecting device 10 further includes a conveying mechanism 37.
- Conveying mechanism 37 preferably includes an Archimedes screw 38 which is engaged within hollow 14 of cannula 12. To operate as a conveying mechanism, Archimedes screw 38 is either stationary or it is counter-rotated relative to cannula 12. Counter-rotating screw 38 can be effected by a dedicated gear, belt, chain and/or clutch mechanism.
- Archimedes screw 38 is formed hollow and around shaft 28 which is rotating about coil 39, such that dissected tissue collected within hollow 14 of cannula 12 is transported via the contours of Archimedes screw 38 to distal portion 15 thereof. Dissected tissue accumulating at distal portion 15 of hollow 14 is then transported to chamber 34 by the pumping action of pump 33 through tube 36 (best seen in Figure 3).
- conveying mechanism 37 which in this case is realized as Archimedes screw 38, is provided within hollow 14 of cannula 12 such that resected tissue, when accumulating in hollow 14 is conveyed to distal portion 15 of hollow 14 which serves in this case as a collection chamber.
- conveying mechanism 37 which in this case is realized as Archimedes screw 38
- distal portion 15 of hollow 14 which serves in this case as a collection chamber.
- a coil 39 which resides within space 42 serves an Archimedes screw like capacity.
- space 42 is provided with openings 44 communicating with hollow 14, and openings 46 communicating with chamber 34, such that fluid communication between hollow 14 and chamber 34 though space 42 is established.
- tissue driven by Archimedes screw 38 to distal end
- resecting device 10 further includes an imaging device 50.
- imaging device 50 is preferably housed in a housing 48 located over sleeve 30 distal and adjacent to cannula 12.
- Imaging device 50 serves for monitoring a procedure performed by resecting device 10.
- imaging device 50 includes a viewing aperture 52 which serves for receiving an image from a region within the body.
- Viewing aperture 52 can be optically coupled to a variety of imaging means, such as, but not limited to, a monitor, a screen, a camera, a video, a microscope or a viewing lens.
- Preferably such coupling is established through light guides, such as optic fibers, although other configurations are envisaged.
- Device 50 preferably further includes a light source, which serves for lighting the imaged region within the body.
- resecting device 10 includes a guiding mechanism 56.
- mechanism 56 is realized as a member connecting sleeve 30 adjacent to cannula 12 with housing 48.
- Mechanism 56 is operated via handpiece 32 to effect positional orientation (one such orientation is shown in Figure 7) between mechanism 56 and sleeve 30 such that cannula 12 can be spatially oriented in a plurality of positions relative to handpiece 32, thus allowing guiding and positioned of cannula 12 in various body regions.
- resecting device 10 includes a heating device 60.
- Heating device 60 serves for heating the tissue in the area of resection, such that blood homeostasis is achieved.
- heating device 60 is heated to a temperature preferably in the range of 50-1000 °C, more preferably in the range of 100- 500 °C, most preferably in the range of 150-300 °C.
- heating device 60 includes a friction element (e.g., pad) 62 which can be brought in or removed from contact with a dedicated portion of cannula 12.
- a friction element e.g., pad
- cannula 12 rotates and region 71 of heating device 60 is contacted with element 62 sufficient heat is generated in device 60 such that when contacted with a bleeding tissue, homeostasis is effected.
- cannula 12 is formed of a good heat conducting material, and as such heat from device 60 is conducted via cannula 12 to the tissue to cause homeostasis.
- Contacting stationary friction element 62 with cannula 12 is controlled preferably via wires 63 and through handpiece 32.
- the direction and dissipation of the heat generated can be controlled by appropriately selecting materials with suitable heat conductivity and friction coefficients. For example, providing the tip of cannula 12 with a good heat conductor and providing element 62 as a poor heat conductor will result in directing the generated heat through the tip of cannula 12 to the tissue to effect blood homeostasis therein.
- FIG. 9 Yet another example of a friction operated heat device 60 is shown in Figure 9.
- a friction disk 61 which can be connected to or form an integral part of Archimedes screw 38 (which in this embodiment is selected stationary) or sleeve 30, is selectively engagable by a user operated mechanism, preferably operated from handpiece 32, against region 71 of the rotating cannula 12, thereby generating heat in a fashion similar to as described above.
- heating device 60 includes a heating wire 66.
- Heating wire 66 is provided with electricity generated from the rotating motion of a magnet 68 positioned in cannula 12 juxtaposed to a fixed ferrous material 70 which preferably includes a plurality of current circuits to increase heat production, and connected to heating wire 66.
- heating wire 66 is provided with direct current from a battery and user controls located within handpiece 32.
- resecting device 10 further includes a temperature sensor 74, which is preferably located on a non-rotating portion of cannula 12 adjacent to a proximal portion 72 thereof and not in contact with heating device 60.
- Temperature sensor 74 monitors the temperature within the region of resection, such that efficient homeostasis is achieved yet thermal damage is not inflicted upon surrounding tissues.
- output from temperature sensor 74 can be linked to heating device 60, such that the temperature sensor 74 senses exerts control over the heating process, or alternatively temperature sensor 74 can inform a user of the temperature at the region of interest, such that the user can then modulate the heating process accordingly.
- the present invention has major advantages as compared with prior art resecting devices.
- the resecting device according to the present invention is capable of not only dissecting and collecting the dissected tissue, the resecting device according to the present invention further provides for built-in blood homeostasis.
- the resecting device according to the present invention allows the removal of tissues of various shapes, e.g., tissue underlining a tube or an orifice, etc., which is much less applicable using prior art translating devices.
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU0102536A HUP0102536A3 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
AU40227/00A AU4022700A (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
EA200001138A EA002312B1 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
EP00919565A EP1082059A4 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
SK1777-2000A SK17772000A3 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
JP2000607552A JP2002539883A (en) | 1999-03-31 | 2000-03-23 | Apparatus and method for removing biological tissue |
CA002334147A CA2334147A1 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
KR1020007013489A KR20010052456A (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
EEP200000710A EE200000710A (en) | 1999-03-31 | 2000-03-23 | Apparatus and method for excision of body tissues |
BG104982A BG63562B1 (en) | 1999-03-31 | 2000-11-24 | Device and method for resecting body tissues |
HR20000873A HRP20000873A2 (en) | 1999-03-31 | 2000-12-15 | Device and method for resecting body tissues |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/282,168 | 1999-03-31 | ||
US09/282,168 US6066153A (en) | 1999-03-31 | 1999-03-31 | Device and method for resecting body tissues |
Publications (1)
Publication Number | Publication Date |
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WO2000057797A1 true WO2000057797A1 (en) | 2000-10-05 |
Family
ID=23080374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/007713 WO2000057797A1 (en) | 1999-03-31 | 2000-03-23 | Device and method for resecting body tissues |
Country Status (15)
Country | Link |
---|---|
US (1) | US6066153A (en) |
EP (1) | EP1082059A4 (en) |
JP (1) | JP2002539883A (en) |
KR (1) | KR20010052456A (en) |
AU (1) | AU4022700A (en) |
BG (1) | BG63562B1 (en) |
CA (1) | CA2334147A1 (en) |
EA (1) | EA002312B1 (en) |
EE (1) | EE200000710A (en) |
HR (1) | HRP20000873A2 (en) |
HU (1) | HUP0102536A3 (en) |
PL (1) | PL344524A1 (en) |
SK (1) | SK17772000A3 (en) |
WO (1) | WO2000057797A1 (en) |
YU (1) | YU74300A (en) |
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US11737777B2 (en) | 2020-02-05 | 2023-08-29 | Covidien Lp | Tissue resecting instruments |
US11883058B2 (en) | 2019-03-26 | 2024-01-30 | Covidien Lp | Jaw members, end effector assemblies, and ultrasonic surgical instruments including the same |
US11890237B2 (en) | 2019-10-04 | 2024-02-06 | Covidien Lp | Outflow collection vessels, systems, and components thereof for hysteroscopic surgical procedures |
TWI836701B (en) | 2022-11-04 | 2024-03-21 | 財團法人金屬工業研究發展中心 | A driving device of a surgical cutting tool |
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Also Published As
Publication number | Publication date |
---|---|
AU4022700A (en) | 2000-10-16 |
JP2002539883A (en) | 2002-11-26 |
HRP20000873A2 (en) | 2002-02-28 |
EE200000710A (en) | 2002-04-15 |
KR20010052456A (en) | 2001-06-25 |
EP1082059A1 (en) | 2001-03-14 |
EP1082059A4 (en) | 2003-07-23 |
EA002312B1 (en) | 2002-02-28 |
US6066153A (en) | 2000-05-23 |
SK17772000A3 (en) | 2001-07-10 |
BG104982A (en) | 2001-06-29 |
HUP0102536A3 (en) | 2001-12-28 |
CA2334147A1 (en) | 2000-10-05 |
YU74300A (en) | 2002-10-18 |
EA200001138A1 (en) | 2001-06-25 |
HUP0102536A2 (en) | 2001-11-28 |
PL344524A1 (en) | 2001-11-05 |
BG63562B1 (en) | 2002-05-31 |
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