US3896804A - Catheter for submucous administration of local anesthetics in obtaining paracervical block - Google Patents

Catheter for submucous administration of local anesthetics in obtaining paracervical block Download PDF

Info

Publication number
US3896804A
US3896804A US415352A US41535273A US3896804A US 3896804 A US3896804 A US 3896804A US 415352 A US415352 A US 415352A US 41535273 A US41535273 A US 41535273A US 3896804 A US3896804 A US 3896804A
Authority
US
United States
Prior art keywords
catheter
collar
tube
administration
obtaining
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.)
Expired - Lifetime
Application number
US415352A
Inventor
Fred Vage Gunnar Ekbladh
Sven Lennart Steen
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.)
Astra Sjuco AB
Original Assignee
Astra Sjuco AB
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 Astra Sjuco AB filed Critical Astra Sjuco AB
Application granted granted Critical
Publication of US3896804A publication Critical patent/US3896804A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/42—Gynaecological or obstetrical instruments or methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02—Holding devices, e.g. on the body
    • A61M25/04—Holding devices, e.g. on the body in the body, e.g. expansible

Definitions

  • a catheter for submucous administration of a local anesthetic agent in obtaining paracervical block comprising a tabular device having a rearwardly directed collar at one end and intended to be applied submucously, which collar encircles the entire circumference of the tube.
  • the collar may be provided with 3 to 6 slits, and be inclined at an angle Of 30 to 45 to the axis of the tube,
  • the present invention relates to a catheter to be used for submucous administration of a local anesthetic agent in obtaining paracervical block.
  • the object of the present invention is to obtain a catheter to be used in anesthetizing the cervix, the catheter being intended to be applied submucously.
  • a catheter technique whereby one places one catheter on each side laterally of the cervix.
  • the catheter is so designed that it lies subcutaneously in the tissue.
  • the opposite ends of the catheters have connectors for connecting a hypodermic syringe and are fixed with adhesive tape on the thighs of the patient.
  • the catheter lies only 3 to 4 mm deep, as contrasted with the case when subcutaneous anesthesia is obtained with the catheter lying to mm deep, in which latter case catheters intended for subcutaneous injection cannot be used, but rather a special catheter is then required.
  • the catheter in its one end that is the end intended for submucous application, is provided with a rearwardly directed collar which encircles the whole circumference of the catheter.
  • the collar is partly slit.
  • the collar subtends at an angle of to 45 with the longitudinal axis of the catheter.
  • rearwardly directed collar means that the funnel-like cavity formed between the collar and the catheter opens towards the other end of the catheter, which end is not provided with a collar.
  • FIG. 1 shows one embodiment of-the invention.
  • FIG. 2 shows a second embodiment of the invention.
  • Reference number 1 denotes a tubular catheter which is made of a flexible plastic material such as polyethylene, Teflon or the like material suitable for disposable use.
  • the catheter 1 is provided with a central output opening 4 in its one end and an input opening in its other end.
  • a fixedly attached collar 2 of the same material as the catheter.
  • the collar is whole without any cuts or slits in it, and its outer part 3 lies about 1 to 1.5 mm outside the catheter tube 1, when the tube has an outside diameter of 1.5 mm. This means that the largest diameter of the collar is 3.5 to 4.5 mm.
  • the collar 2 forms an amgle of 30 to 45 with the longitudinal axis of the catheter tube.
  • FIG. 2 a catheter l with a collar 2 similar to the one of FIG. I is shown.
  • the collar is here provided with slits 6 in a number of at least three. suitably four to six, preferably five, the depth of the slits 6 being about half the width of the collar 2.
  • the slits 6 of the collar 2 cause the collar 2 to be more readily adapted to the outer surface of the catheter 1, without thereby being deformed.
  • the collar 2 has in other respects the same appearance as the collar of FIG. 1, that is to say that the collar forms the same angle with the longitudinal axis and has the same dimensions.
  • the catheter l is introduced submucously in the vaginal mucous membrane of the fornix on the both sides of the cervix by means of an introduction tube, as a socalled Kobaks tube, which is slit and in which the catheter has been placed.
  • a mandrel is placed inside the catheter and is so designed that a cutting point is provided at its forward end by means of which the mucous membrane is perforated for introducing the catheter.
  • the introduction tube and the mandrel are removed when the catheter has been placed at a depth of 3 to 4 mm. In this way one catheter is placed on each side of the cervix and is fixed by being drawn backwards a little so that the collar springs out and engages into the mucous membrane and is thereby retained.
  • the other ends of the catheters are fixed to the respective thigh of the patient or the abdomen and are provided with connectors to an injection apparatus, whereupon an injection of a local anesthetic agent can be made frequently and in low concentration.
  • an injection apparatus whereupon an injection of a local anesthetic agent can be made frequently and in low concentration.
  • the catheter lies well fixed in the cervix during the whole delivery procedure and is not removed until the delivery is completed.
  • the catheter is removed by drawing it backwards causing the collar to turn inside out, so that it does not cause any enlargement of the introduction bore. In this way more rapid healing of the mucous membrane is obtained.
  • the catheter has been used satisfactorily and fulfilled requirements as regards retainment and introduction of a local anesthetic agent in actual tests.
  • An improved catheter the forward end of which is adapted to be inserted submucously into the cervix for administration of a local anesthetic agent in obtaining paracervical block, said catheter comprising a tube which is provided near its forward end with a collar extending away from the tube and toward the rear of the tube, said collar encircling the whole circumference of the tube and being provided with axially directed slits, the distance from the forward end of the catheter to the collar being such that the catheter can be mounted submucously in the cervix with the collar imbedded therein. 7
  • a catheter according to claim 1 characterized in that the number of slits is at least three, suitably four to six.
  • a catheter according to claim 1 wherein the number of slits is from four to six.

Abstract

A catheter for submucous administration of a local anesthetic agent in obtaining paracervical block, comprising a tabular device having a rearwardly directed collar at one end and intended to be applied submucously, which collar encircles the entire circumference of the tube. The collar may be provided with 3 to 6 slits, and be inclined at an angle of 30* to 45* to the axis of the tube.

Description

United States Patent Ekbladh et al.
[ July 29,1975
[541' CATHETER FOR SUBMUCOUS ADMINISTRATION OF LOCAL ANESTHETICS IN OBTAINING PARACERVICAL BLOCK [75] Inventors: Fred Viige Gunnar Ekbladh, Saro;
Sven Lennart Steen, Kullavik, both of Sweden [73] Assignee: Astra-Sjuco AB, Goteborg, Sweden [22] Filed: Nov. 13, 1973 211' Appl. No.: 415,352
[30] Foreign Application Priority Data Nov. 24, 1972 Sweden l5320/72 [52] US. Cl. 128/215; 128/245; 128/348 [51] Int. Cl. A6lm 5/00; A6lm 25/00 [58] Field of Search 128/213, 215, 348, 350 R,
[56 References Cited UNITED STATES PATENTS 724,9 l 3 4/l903 Montgomery 128/245 3,308,819 3/1967 3,508,545 4/1970 3,516,410 6/1970 3,788,328 l/l974 Alley et a1 128/350 R Primary Examlner-Dalton L. Truluck Attorney, Age it, or Firm-Brumbaugh, Graves, Donohue & Raymond ABSTRACT A catheter for submucous administration of a local anesthetic agent in obtaining paracervical block, comprising a tabular device having a rearwardly directed collar at one end and intended to be applied submucously, which collar encircles the entire circumference of the tube. The collar may be provided with 3 to 6 slits, and be inclined at an angle Of 30 to 45 to the axis of the tube,
4 Claims, 2 Drawing Figures CATHETER FOR SUBMUCOUS ADMINISTRATION OF LOCAL ANESTHETICS IN OBTAINING PARACERVICAL BLOCK The present invention relates to a catheter to be used for submucous administration of a local anesthetic agent in obtaining paracervical block.
The object of the present invention is to obtain a catheter to be used in anesthetizing the cervix, the catheter being intended to be applied submucously.
It is previously known to inject an anesthetic active agent to obtain a paracervical block in so-called pain less delivery. The injection has been carried outin such a way that the gynecologist, by means of a hypodermic syringe with an applied long needle, injects subcutaneously an anesthetic agent laterally on the both sides of the cervix. The drawback of this method is that the injection must be carried out several times to maintain a painless condition. In order to reduce the number of injections one often uses a high concentration and a large dose of anesthetic agent which latter usage, however, is not desirable depending on the toxicity of the anesthetic agent.
In order to eliminate this drawback, a catheter technique has been used whereby one places one catheter on each side laterally of the cervix. The catheter is so designed that it lies subcutaneously in the tissue. The opposite ends of the catheters have connectors for connecting a hypodermic syringe and are fixed with adhesive tape on the thighs of the patient. When necessary small doses of an anesthetic agent in low concentration can be introduced through the catheters.
It has, however, now been found that one can obtain a painless condition for a longer period of time if the anesthetic agent is introduced submucously in the cervix. In this way, the catheter lies only 3 to 4 mm deep, as contrasted with the case when subcutaneous anesthesia is obtained with the catheter lying to mm deep, in which latter case catheters intended for subcutaneous injection cannot be used, but rather a special catheter is then required.
Thus, it has now surprisingly been shown possible to fulfill this requirement by the present invention which is characterized in that the catheter in its one end, that is the end intended for submucous application, is provided with a rearwardly directed collar which encircles the whole circumference of the catheter.
According to a suitable embodiment, the collar is partly slit.
According to another suitable embodiment, the collar subtends at an angle of to 45 with the longitudinal axis of the catheter.
The expression rearwardly directed collar means that the funnel-like cavity formed between the collar and the catheter opens towards the other end of the catheter, which end is not provided with a collar.
The present invention will be described in more detail in the following, with reference to the attached drawings.
FIG. 1 shows one embodiment of-the invention.
FIG. 2 shows a second embodiment of the invention.
Reference number 1 denotes a tubular catheter which is made of a flexible plastic material such as polyethylene, Teflon or the like material suitable for disposable use. The catheter 1 is provided with a central output opening 4 in its one end and an input opening in its other end. At its first said end and immediately adjacent thereto it is provided with a fixedly attached collar 2 of the same material as the catheter. Thereby the collar 2 opens as a funnel towards the other end of the catheter which other end is not provided with any collar. The collar is whole without any cuts or slits in it, and its outer part 3 lies about 1 to 1.5 mm outside the catheter tube 1, when the tube has an outside diameter of 1.5 mm. This means that the largest diameter of the collar is 3.5 to 4.5 mm. Further, the collar 2 forms an amgle of 30 to 45 with the longitudinal axis of the catheter tube.
In FIG. 2 a catheter l with a collar 2 similar to the one of FIG. I is shown. However. the collar is here provided with slits 6 in a number of at least three. suitably four to six, preferably five, the depth of the slits 6 being about half the width of the collar 2. The slits 6 of the collar 2 cause the collar 2 to be more readily adapted to the outer surface of the catheter 1, without thereby being deformed. The collar 2 has in other respects the same appearance as the collar of FIG. 1, that is to say that the collar forms the same angle with the longitudinal axis and has the same dimensions.
The catheter l is introduced submucously in the vaginal mucous membrane of the fornix on the both sides of the cervix by means of an introduction tube, as a socalled Kobaks tube, which is slit and in which the catheter has been placed. A mandrel is placed inside the catheter and is so designed that a cutting point is provided at its forward end by means of which the mucous membrane is perforated for introducing the catheter. The introduction tube and the mandrel are removed when the catheter has been placed at a depth of 3 to 4 mm. In this way one catheter is placed on each side of the cervix and is fixed by being drawn backwards a little so that the collar springs out and engages into the mucous membrane and is thereby retained. The other ends of the catheters are fixed to the respective thigh of the patient or the abdomen and are provided with connectors to an injection apparatus, whereupon an injection of a local anesthetic agent can be made frequently and in low concentration. By means of the rearwardly directed collar 2 the catheter lies well fixed in the cervix during the whole delivery procedure and is not removed until the delivery is completed. The catheter is removed by drawing it backwards causing the collar to turn inside out, so that it does not cause any enlargement of the introduction bore. In this way more rapid healing of the mucous membrane is obtained.
The catheter has been used satisfactorily and fulfilled requirements as regards retainment and introduction of a local anesthetic agent in actual tests.
What is claimed is:
1. An improved catheter the forward end of which is adapted to be inserted submucously into the cervix for administration of a local anesthetic agent in obtaining paracervical block, said catheter comprising a tube which is provided near its forward end with a collar extending away from the tube and toward the rear of the tube, said collar encircling the whole circumference of the tube and being provided with axially directed slits, the distance from the forward end of the catheter to the collar being such that the catheter can be mounted submucously in the cervix with the collar imbedded therein. 7
2. A catheter according to claim 1, characterized in that the number of slits is at least three, suitably four to six.
3. A catheter according to any of claims 1, characterized in that the collar forms an angle of 30 to 45 with the longitudinal axis of the catheter.
4. A catheter according to claim 1 wherein the number of slits is from four to six.
UNITED STATES PATENT AND TRADEMARK OFFICE CERTIFICATE OF CORRECTION PATENT NO. 3,896,804 DATED July 29, 1975 lN\/ ENTOR( I Ekbladh et a1.
It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Col. 2, lines 61 and 62, after "three" change the comma to a period and delete "suitably four to six."
Col. 2, line 63, delete "any of".
Col. 2, line 63, "claims 1'' should read -claim l-.
Signed and Scaled this thirtieth Day of December 1975 [SEAL] A ttes t:
RUTH C. MASON C. IAISIIALL DANN Arresting Officer Commission" of hmm and Trademarks

Claims (4)

1. An improved catheter the forward end of which is adapted to be inserted submucously into the cervix for administration of a local anesthetic agent in obtaining paracervical block, said catheter comprising a tube which is provided near its forward end with a collar extending away from the tube and toward the rear of the tube, said collar encircling the whole circumference of the tube and being provided with axially directed slits, the distance from the forward end of the catheter to the collar being such that the catheter can be mounted submucously in the cervix with the collar imbedded therein.
2. A catheter according to claim 1, characterized in that the number of slits is at least three, suitably four to six.
3. A catheter according to any of claims 1, characterized in that the coLlar forms an angle of 30* to 45* with the longitudinal axis of the catheter.
4. A catheter according to claim 1 wherein the number of slits is from four to six.
US415352A 1972-11-24 1973-11-13 Catheter for submucous administration of local anesthetics in obtaining paracervical block Expired - Lifetime US3896804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7215320A SE380176B (en) 1972-11-24 1972-11-24 CATHETER FOR SUBMUCOS APPLICATION

Publications (1)

Publication Number Publication Date
US3896804A true US3896804A (en) 1975-07-29

Family

ID=20300487

Family Applications (1)

Application Number Title Priority Date Filing Date
US415352A Expired - Lifetime US3896804A (en) 1972-11-24 1973-11-13 Catheter for submucous administration of local anesthetics in obtaining paracervical block

Country Status (5)

Country Link
US (1) US3896804A (en)
DE (1) DE2357308A1 (en)
GB (1) GB1442144A (en)
NO (1) NO132523C (en)
SE (1) SE380176B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407271A (en) * 1980-07-28 1983-10-04 Peter Schiff Apparatus for left heart assist
US4645493A (en) * 1983-01-07 1987-02-24 N.U.S. S.R.L. Catheter for medical-surgical application
US4825861A (en) * 1985-05-04 1989-05-02 Walter Koss Of Industriestrasse Endotube
US4863457A (en) * 1986-11-24 1989-09-05 Lee David A Drug delivery device
US4986810A (en) * 1989-09-01 1991-01-22 Neal Semrad Toggle catheter
US5193533A (en) * 1990-07-09 1993-03-16 Brigham And Women's Hospital High-pressure jet ventilation catheter
US5234455A (en) * 1992-02-20 1993-08-10 Arkansas Knee Clinic, P.A. Lipped cannula and methods of introducing surgical instruments in arthroscopic surgical procedures
US8012143B1 (en) * 2006-12-12 2011-09-06 Pacesetter, Inc. Intrapericardial delivery tools and methods
US20130116652A1 (en) * 2010-07-12 2013-05-09 Ramot At Tel-Aviv University Ltd. Catheter cannula with anchoring elements, catheter including thereof, and/or catheterization method using
US10470552B2 (en) * 2018-04-13 2019-11-12 Philip M. Ripepi Multifunctional pack frame

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902501A (en) * 1973-06-21 1975-09-02 Medtronic Inc Endocardial electrode
US4301815A (en) * 1980-01-23 1981-11-24 Telectronics Pty. Limited Trailing tine electrode lead
DE3607295A1 (en) * 1986-03-06 1987-09-10 Herbert Hermann Dr Med Meyer Flow-directed catheter
EP0335238A1 (en) * 1988-03-31 1989-10-04 Fresenius AG Catheter for organ perfusion
US4932938A (en) * 1989-05-05 1990-06-12 Medical Engineering Corporation Urethral indwelling catheter with incontinence control
SE465999B (en) * 1989-06-28 1991-12-02 Leif Nilsson SYSTEM FOR DRAINING THE URIN BREAST OF FEMALE PATIENTS
FR2776505A1 (en) * 1998-03-24 1999-10-01 Cooperative Bretonne D Insemin Probe for artificial insemination of animals, e.g. sows
DE10137840B4 (en) * 2001-08-02 2004-03-18 Urovision Gmbh Device for receiving and holding a ureterostium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US724913A (en) * 1901-06-27 1903-04-07 John Theodore Montgomery Syringe-nozzle.
US3308819A (en) * 1963-12-09 1967-03-14 Univ Iowa State Res Found Inc Anesthetic device
US3508545A (en) * 1967-11-16 1970-04-28 Dow Corning Catheter placement unit for paracervical anesthesia
US3516410A (en) * 1968-01-03 1970-06-23 Salomon Hakim Cerebro-ventricular catheter
US3788328A (en) * 1971-04-29 1974-01-29 Sherwood Medical Ind Inc Cardiovascular catheter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US724913A (en) * 1901-06-27 1903-04-07 John Theodore Montgomery Syringe-nozzle.
US3308819A (en) * 1963-12-09 1967-03-14 Univ Iowa State Res Found Inc Anesthetic device
US3508545A (en) * 1967-11-16 1970-04-28 Dow Corning Catheter placement unit for paracervical anesthesia
US3516410A (en) * 1968-01-03 1970-06-23 Salomon Hakim Cerebro-ventricular catheter
US3788328A (en) * 1971-04-29 1974-01-29 Sherwood Medical Ind Inc Cardiovascular catheter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407271A (en) * 1980-07-28 1983-10-04 Peter Schiff Apparatus for left heart assist
US4645493A (en) * 1983-01-07 1987-02-24 N.U.S. S.R.L. Catheter for medical-surgical application
US4825861A (en) * 1985-05-04 1989-05-02 Walter Koss Of Industriestrasse Endotube
US4863457A (en) * 1986-11-24 1989-09-05 Lee David A Drug delivery device
US4986810A (en) * 1989-09-01 1991-01-22 Neal Semrad Toggle catheter
US5193533A (en) * 1990-07-09 1993-03-16 Brigham And Women's Hospital High-pressure jet ventilation catheter
US5234455A (en) * 1992-02-20 1993-08-10 Arkansas Knee Clinic, P.A. Lipped cannula and methods of introducing surgical instruments in arthroscopic surgical procedures
US8012143B1 (en) * 2006-12-12 2011-09-06 Pacesetter, Inc. Intrapericardial delivery tools and methods
US20130116652A1 (en) * 2010-07-12 2013-05-09 Ramot At Tel-Aviv University Ltd. Catheter cannula with anchoring elements, catheter including thereof, and/or catheterization method using
US10080838B2 (en) * 2010-07-12 2018-09-25 Ramot At Tel-Aviv University Ltd. Catheter cannula with anchoring elements, catheter including thereof, and/or catheterization method using thereof
US10470552B2 (en) * 2018-04-13 2019-11-12 Philip M. Ripepi Multifunctional pack frame

Also Published As

Publication number Publication date
DE2357308A1 (en) 1974-05-30
GB1442144A (en) 1976-07-07
NO132523B (en) 1975-08-18
SE380176B (en) 1975-11-03
NO132523C (en) 1975-11-26

Similar Documents

Publication Publication Date Title
US3896804A (en) Catheter for submucous administration of local anesthetics in obtaining paracervical block
US3739778A (en) Catheter introduction system
US3780733A (en) Catheter
US20060129128A1 (en) Method and system for drug delivery
CA2223954A1 (en) Method and apparatus for accessing the pericardial space
EP0649325A4 (en) Administration of medicaments to poultry.
US3735760A (en) Needle apparatus
Gagnon et al. Single‐dose pharmacokinetics of cefazolin in bovine synovial fluid after intravenous regional injection
SE9601974D0 (en) Method and apparatus for injecting a substance into a body, spec. human or animal
US3823715A (en) Suppository introducer
EP0319394A1 (en) Hysterography device
US4350148A (en) Esophageal varices injector
US3822701A (en) Adaptor for hypodermic syringe
US20060100583A1 (en) Intra-venous (i.v.) blood catheter for subcutaneous infusion of liquids and/or drugs
FR2309242A1 (en) Medical instrument for area treatments in body - with distributor for use with syringe and several needle probes
CN219307705U (en) Hydrogel conveying system
LAGERSTEDT et al. Uterine drainage in the bitch for treatment of pyometra refractory to prostaglandin F2α
Gelman et al. Influence of enteral oxygen administration on the slow electrical activity of the intestine and stomach
CN213407317U (en) Combined appliance for epidural anesthesia
CN216855426U (en) Nerve block medicine syringe under ultrasonic guidance
CN211357388U (en) Be used for targeted conveyor that doses of interior cancer of alimentary canal
WO1997036630A1 (en) Urinary catheter
RU14352U1 (en) CATHETER FOR RETROBULBAR INFUSIONS
CN212090421U (en) Novel anesthesia needle inserter
SU1147411A1 (en) Apparatus for magnetotherapy of tubular organs