Connect public, paid and private patent data with Google Patents Public Datasets

Retention cannula or catheter and applicator

Download PDF

Info

Publication number
US3890970A
US3890970A US43496374A US3890970A US 3890970 A US3890970 A US 3890970A US 43496374 A US43496374 A US 43496374A US 3890970 A US3890970 A US 3890970A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
catheter
tissue
end
stylet
tube
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
Inventor
Robert L Gullen
Original Assignee
Robert L Gullen
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
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M25/04Holding devices, e.g. on the body in the body, e.g. expansible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/329Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
    • A61M5/3291Shafts with additional lateral openings

Abstract

A self-retaining surgical cannula comprises a catheter formed as a tube of elastic material, semirigid in character, such as polyethylene, polyvinyl chloride or silicone rubber, etc., with a perforate membranous front end tough, firm and sharp enough to be inserted into body tissue without being itself cut or torn by an internal rigid injection stylet or needle. A thin membranous ballooning portion of the tube contracts or deflates on insertion into the tissue and expands on application of fluid pressure within the catheter tube to lock the cannula in place. A rigid stylet or hollow needle, somewhat dull at its front end, is provided over which the catheter is placed for insertion into the tissue. A limit stop fixed on the catheter prevents overinsertion. The application stylet, which is formed to allow fluid to flow along it into the catheter front end, is withdrawn after the catheter tube is in place, leaving the latter flexible enough to permit movement of the patient and allowing needed surgical procedure while it remains in place in the tissue.

Description

United States Patent 1191 Gullen A r June 24, 1975 RETENTION CANNULA OR CATHETER AND APPLICATOR' Inventor: Robert L. Gullen, 341 1 N. 5th Ave.,

Phoenix, Ariz. 85013 22 Filed: Jan. 21, 1974 21 Appl. No; 434,963

52 US. (:1 128/215; 128/221 51 1m.c1 ..A6lm 5/32 [58] Field of Search..... l28/221,'215, 214.4, 214 R,

[56] References Cited UNITED STATES PATENTS 1,444,714 2/1923 Teshima .L 128/278 2,281,600 5/1942 2,512,569 6/1950 3,435,826 4/1969 3,598,119 8/1971 3,613,684 10/1971 3,630,198 12/1971 Henkin 128/215 Primary Examiner-Richard A. Gaudet Assistant Examiner-J. C. McGowan Attorney, Agent, or FirmCahill, Sutton & Thomas 5 7] ABSTRACT A self-retaining surgical cannula comprises a catheter formed as a tube of elastic material, semirigid in character, such as polyethylene, polyvinyl chloride or silicone rubber, etc., with a perforate membranous front end tough, firm and sharp enough to be inserted into body tissue without being itself cut or torn by an internal rigid injection stylet 0r needle. A thin membranous ballooning portion of the tube contracts or deflates on insertion into the tissue and expands on application of fluid pressure within the catheter tube to lock the cannula in place. A rigid stylet or hollow needle, somewhat dull at its front end, is provided over which the catheter is placed for insertion into the tissue. A limit stop fixed on the catheter prevents over-insertion. The application stylet, which is formed to allow fluid to flow along it into the catheter front end, is withdrawn after the catheter tube is in place, leaving the latter flexible enough to permit movement of the patient and allowing needed surgical procedure while it remains in place in the tissue.

2 Claims, 3 Drawing Figures RETENTION CANNULA OR CATHETER AND APPLICATOR BACKGROUND AND PRIOR ART There is a recognized need for a flexible cannula or catheter mechanism suitable for either intermittent or continuous injection of fluids, such as anaesthetics, into body tissues while surgical treatment is being given. In obstetrics practice, for example, it is often desired to provide paracervical anaesthesia over a prolonged period of time. It is obviously necessary that the applicator or cannula remain in place, while not unduly restricting movement of the patient or interfering with the necessary medical or surgical procedures'Thus, there is need for a cannula or catheter which can penetrate body tissue with minimal injury and supply periodically or over a sustained time period the necessary fluid anaesthetic, etc., while remaining securely in place and without requiring use of complicated fastening means.

Suggestions have been made in the prior art, as in U.S. Pat. No. 3,508,545 to Reif, et al, for a flexible selfsecuring catheter. The patentees have described a cannula in the form of a slender tube of silicone rubber which has at its forward end a small retaining barb. This device is inserted into the tissue to be treated by means of an outer tubular needle which surrounds the catheter and which itself is guided in an outer tube of rigid plastic construction. After the catheter is secured in the tissue, the inserting means are withdrawn. Thereafter, treating fluid is injected as needed through the slender flexible tube. The barb or retaining element in this case is necessarily soft, flexible and quite small. It may not be retained in soft tissues as well as is required for some cases.

Other references in the prior art have described expansible or inflatable securing means for retaining a catheter or silimar cannula in tissue or especially in a body cavity. Some of these are complex mechanical devices. Thus, U.S. Pat. No. 3,692,029 described springactuated mechanical wings which are pushed outwardly from the tubular body of a trocar or injection device for retaining that device inside of a body cavity. Other self-retaining catheters or trocars are suggested in U.S. Pat. Nos. 1,922,084; 2,230,150; 2,320,157, and 3,438,375. See also U.S. Pat Nos. 3,544,668; 3,606,889, and 3,734,100 for other devices having relevance in some respects to the present invention. Still other retention means are described in U.S. Pat. Nos. 3,713,447 and 3,039,468. The latter shows finger members or expandable membranes which, on application of pressure or other manipulating means, serve to spread or expand and hold the device in place against premature withdrawal or displacement.

Most of the devices mentioned in the prior art, in the above patents and in others, are subject to the objection that they are rigid, either causing considerable discomfort to the patient or requiring that the patient be restrained against movement or at least against certain kinds of movement. In many cases, also, they interfere with procedures or operations by the surgeon or physician.

Other devices for special application have been spe* cially designed or shaped so as to be self-retaining, as in the case of an ear drum penetrating device, described in U.S. Pat. No. 3,645,268. Such devices are not suitable for'the purposes of the present invention which are to make use of flexible cannular means which are reliably retained in the tissue being treated, as, for example, in the tissues commonly requiring anaesthetic treatment in childbirth and in analogous situations.

The use of flexible catheters or catheter tips is, of course, well known. Some of these have been applied or inserted in tissues by use of a more rigid guiding or inserting tool such as an interior stylet or an external tubular guide. In some cases the guiding means have been separate and withdrawable, as in the case of U.S. Pat. No. 3,508,545, mentioned above. However, most of the prior art devices do not meet the required criteria of the present invention, that is, they lack one or more of the features of being flexible, of being insertable into soft tissue directly, of being retained in that tissue reliably in spite of tissue softness and/or being designed to permit manipulation of that tissue or movements of the patient, voluntary or involuntary, while permitting intermittent or continuous medication, as by injection of anaesthetic fluids or the like. A further requirement, for the present case, is that the depth of insertion into tissue should be accurately controllable in each case. A further and important aspect of the present invention is the discovery that by proper design of the flexible catheter member, although of thin elastic membranous structure, it can be formed with a firm and sharp enough front end that it may be inserted into the tissue to be treated. Penetration is effected while the catheter is shrouded over a rigid stylet or hollow needle. Moreover, this can be done without tearing or cutting the cannula and without undue pain or injury to the patient. All rigid elements used for application of the catheterin the present invention, can be withdrawn and the catheter will remain securely in place until intentionally removed.

Other objects of the invention will be further illustrated and explained in connection with the detailed description which follows.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows a plan view of the cannula, which comprises a catheter and applicator means, with certain parts cut away or shown in section.

FIG. 2 shows an enlarged fragmentary sectional view of the front edge of a catheter and the inserting end of a rigid stylet, for a typical application.

FIG. 3 shows a similar enlarged fragmentary sectional view of the flexible catheter inserted in soft tissue and secured therein by an enlarged balloon section, the inserting stylet having been withdrawn.

DESCRIPTION OF PREFERRED EMBODIMENT Referring first to FIG. 1, the flexible catheter 1 1 itself is shown as being in the form of a hollow tube of firm but flexible sterile material, such as polyethylene, vinyl chloride, silastic, or silicone rubber. At its left or rear end this tube 11 is secured by a flange 13 in a nipple or coupling element 14 by means of which the catheter may be attached to the outlet 15 of a syringe 20. Towards its forward or left end, the catheter is provided with a fixed or integral stop member or limit device in the form of a ring 16. In front of the stop member 16, the tube body is reduced in thickness at 17 to form a normally expanded or expandable balloon member when the catheter is in place in tissue 40, FIG. 2. Stop member 16, of course, serves to limit the depth of penetration to which tube 11 can be inserted into tissue 40. In its front end portion, the tube 11 is formed as a thin membrane at 21 with a sharp cutting edge 22; being made of very tough and strong film material, its body can be stretched over the dull point of a stylet or needle 25 without being cut or torn by the needle. The stylet 25 is blunt at its front end 29 but the tube 11 at its front end 21 is firm and sharp enough that the assembly can be inserted in tissue such as that involved in obstetrics without cutting or tearing the film. The front end part 21 is provided with perforations 23. Needle 25 may be hollow, if desired, in which case similar perforations 27 in its forward end allow injection of fluid through the front of the catheter from the syringe or from any other soruce. If stylet is not hollow, it is shaped or sized so that fluid from source 20 may flow along it into the front end of the catheter 11.

The stylet 25 is flanged at 28, at its rear or right end, FIG, 1; this flange fits within the coupling connection 14 to syringe 20; the syringe or fluid supply source may be of any suitable type, as will be obvious. When the catheter 11 is attached to the syringe 20 through outlet coupling 14, and the rigid stylet 25 is in place within the catheter as in FIG. 1, the thin but penetrating membrane part 21 being stretched over the end of the needle, the balloon part 17 may be normally expanded somewhat as shown in dotted lines in FIG. 1. However, this balloon part 17 smooths out as the needle or stylet carrying the outer membrane cover is forced into the tissue 40, as seen in FIG. 2. Outlets 23 in the membrane, and openings 27 in the stylet or needle, if the latter is hollow, permit the injection of anaesthetic fluid or other medication into the tissue from the syringe 20. This action of injecting fluid moreover, assists in expanding and holding the balloon section 17 in expanded tissue-locking position, as shown in FIG. 3. The membrane at 17 may expand somewhat, even without this internal pressure, as the stylet is withdrawn from the tube 11, tending also to lock the latter in place within the tissue 40.

An important aspect of the present invention is the discovery, mentioned above, that the thin membrane end of the catheter can be drawn over the stylet and retain sufficient sharpness to penetrate the tissue without undue difficulty and without tearing or cutting the thin membrane part 21, so that the catheter front end is neatly inserted into the tissue and locked there with minimum damage to the tissue. Experience has shown that the flexible catheter element, in the cannula, when made of a high grade, relatively firm synthetic rubber or stretchable plastic of sterile and sanitary type, can be inserted smoothly with the needle and is readily stripped off to remain securely in place when needle 25 is withdrawn. However, by applying some fluid pressure from the syringe as the needle or stylet is withdrawn from the tube 11, FIG. 3, the stripping of the tube 11 off the needle is further facilitated and the balloon part 17 is kept fully expanded. Thus, the device is locked firmly and reliably in place. To withdraw tube 11 from the tissue, stylet 25 is reinserted to deflate the balloon part; the dull point on the stylus prevents cutting the catheter. This permits the balloon 17 to collapse. Then, the whole device can be withdrawn from the tissue without injury to the latter.

The original syringe 20 is employed while continuing to supply treating fluid, or the tube 11 may be attached to another fluid source after the stylet has been withdrawn from the catheter, as in FIG. 3. If desired, the stylet may be made retractable without requiring that it be completely removed from tube 11, but wherever a stiff needle or stylet would cause discomfort to the patient or would restrict the patients movements undesirably, or would interfere with proper medical or surgical procedures, it should be removed. This may be done by disconnecting the connection or coupling 14, removing the stylet from the catheter 11, and reconnecting the latter to the syringe or to some other source of treating fluid, thus repressuring the balloon part 17 to hold the catheter in place.

While reference has been made to treatment of cervical tissue or related tissue with anaesthetic fluids, it will be understood that the invention is suitable for treatment of other soft tissue with anaesthetics or with other treating agents, according to good medical practice and with appropriate skill. It will be obvious that various modifications can be made in the apparatus and in its application, without departing from the spirit and purpose of the invention. The particular materials employed for the various parts may be varied, in accordance with good practice in the medical instrument field. Thus, the tubes 11 will ordinarily be expendable, used only once, while the applicator means 25 and other mechanical parts may be of stainless steel or the like and sterilized and reused as often as needed. Obviously, any of the parts may be expendable or they may be made of materials suitable for sterilization and re- USE.

It is intended by the claims which follow to cover the invention and its obvious variations and modifications as broadly as the state of the prior art properly permits.

What is claimed is:

1. A cannula for penetration into and retention within soft body tissue, for injecting treating fluid into said tissue, comprising:

a. A flexible catheter tube of resilient plastic material having adjacent its forward end a thin membranous part expandable into a balloon structure and having a front end closed and formed in a point to fit over and be inserted into said tissue by a stylet, said catheter including openings therein positioned adjacent said closed end to permit transmission of treating fluids from said catheter to surrounding tissue;

b. A rigid stylet slideably mounted within said catheter and having its forward end formed into a point for supporting the pointed closed end of said flexible catheter during insertion in said tissue;

0. And means connected to said catheter for supplying treating fluid therethrough to said body tissue.

2. The combination set forth in claim 1 wherein said catheter includes a stop member formed integrally therewith and comprises an annular ring positioned to limit the depth of penetration of said catheter.

Claims (2)

1. A cannula for penetration into and retention within soft body tissue, for injecting treating fluid into said tissue, comprising: a. A flexible catheter tube of resilient plastic material having adjacent its forward end a thin membranous part expandable into a balloon structure and having a front end closed and formed in a point to fit over and be inserted into said tissue by a stylet, said catheter including openings therein positioned adjacent said closed end to permit transmission of treating fluids from said catheter to surrounding tissue; b. A rigid stylet slideably mounted within said catheter and having its forward end formed into a point for supporting the pointed closed end of said flexible catheter during insertion in said tissue; c. And means connected to said catheter for supplying treating fluid therethrough to said body tissue.
2. The combination set forth in claim 1 wherein said catheter includes a stop member formed integrally therewith and comprises an annular ring positioned to limit the depth of penetration of said catheter.
US3890970A 1974-01-21 1974-01-21 Retention cannula or catheter and applicator Expired - Lifetime US3890970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3890970A US3890970A (en) 1974-01-21 1974-01-21 Retention cannula or catheter and applicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3890970A US3890970A (en) 1974-01-21 1974-01-21 Retention cannula or catheter and applicator

Publications (1)

Publication Number Publication Date
US3890970A true US3890970A (en) 1975-06-24

Family

ID=23726425

Family Applications (1)

Application Number Title Priority Date Filing Date
US3890970A Expired - Lifetime US3890970A (en) 1974-01-21 1974-01-21 Retention cannula or catheter and applicator

Country Status (1)

Country Link
US (1) US3890970A (en)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431426A (en) * 1979-08-20 1984-02-14 Groshong Leroy E Methods and apparatus for intravenous therapy and hyperalimentation
US4586921A (en) * 1983-08-17 1986-05-06 Daniel Berson Method of applying a local anesthetic agent to a wound
US4781185A (en) * 1986-07-21 1988-11-01 Gv Medical, Inc. Connecting apparatus for catheter assembly
US4795446A (en) * 1986-01-30 1989-01-03 Sherwood Medical Company Medical tube device
EP0357339A2 (en) * 1988-08-29 1990-03-07 Sorin Biomedical Inc. Cannula
US4966583A (en) * 1989-02-03 1990-10-30 Elie Debbas Apparatus for locating a breast mass
US5098411A (en) * 1991-06-10 1992-03-24 Pudenz-Schulte Medical Research Corporation Closed end hollow stylet assembly
US5141518A (en) * 1991-03-05 1992-08-25 Progressive Angioplasty Systems, Inc. Angioplasty catheter with close-fitting guidewire and tube
US5160325A (en) * 1986-10-06 1992-11-03 C. R. Bard, Inc. Catheter with novel lumens shapes
US5183463A (en) * 1989-02-03 1993-02-02 Elie Debbas Apparatus for locating a breast mass
US5445645A (en) * 1989-02-03 1995-08-29 Debbas; Elie Apparatus for locating a breast mass
US5514091A (en) * 1988-07-22 1996-05-07 Yoon; Inbae Expandable multifunctional manipulating instruments for various medical procedures
US5662674A (en) * 1989-02-03 1997-09-02 Debbas; Elie Apparatus for locating a breast mass
EP0843569A1 (en) * 1994-05-09 1998-05-27 InnerDyne Inc. Method and apparatus for catheterization access
US5800394A (en) * 1988-07-22 1998-09-01 Yoon; Inbae Method of creating an operating space endoscopically at an obstructed site
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
WO2000007530A3 (en) * 1998-08-03 2000-03-30 Insite Vision Inc Injection apparatus
US6059734A (en) * 1995-01-06 2000-05-09 Yoon; Inbae Methods of collecting tissue at obstructed anatomical sites
US6277089B1 (en) 1990-07-24 2001-08-21 Inbae Yoon Method for ablating portions of the uterus
US6378526B1 (en) 1998-08-03 2002-04-30 Insite Vision, Incorporated Methods of ophthalmic administration
US6428498B2 (en) * 1998-04-14 2002-08-06 Renan Uflacker Suction catheter for rapidly debriding abscesses
US6436143B1 (en) * 1999-02-22 2002-08-20 Anthony C. Ross Method and apparatus for treating intervertebral disks
WO2002070052A1 (en) * 2001-02-28 2002-09-12 Disetronic Licensing Ag Cannula support with a flexible cannula
US6951555B1 (en) * 1998-03-16 2005-10-04 Chase Medical, L.P. Catheter having integral expandable/collapsible lumen
US20070112383A1 (en) * 2005-11-15 2007-05-17 Conlon Sean P Self-shielding suture anchor
US20090112167A1 (en) * 2007-03-02 2009-04-30 Brett Haarala Sheathless insertion stylet system for catheter placement
US20090287149A1 (en) * 2008-05-13 2009-11-19 Lawrence R. Koh and Nina Merrell-Koh, Trustees, or their Successor; under the Lawrence R. Koh and Needleshield assembly & methods of use
USRE43434E1 (en) 1999-02-22 2012-05-29 Ross Anthony C Method and apparatus for treating intervertebral disks
US8992547B2 (en) 2012-03-21 2015-03-31 Ethicon Endo-Surgery, Inc. Methods and devices for creating tissue plications
FR3012041A1 (en) * 2013-10-23 2015-04-24 Sebastien Besse injection needle
US9113866B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9113879B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444714A (en) * 1920-06-30 1923-02-06 Teshima Masakichi Medical appliance of suction type
US2281600A (en) * 1939-09-02 1942-05-05 Emma Elizabeth Ross Dilator
US2512569A (en) * 1947-09-26 1950-06-20 Jacob A Saffir Hypodermic needle
US3435826A (en) * 1964-05-27 1969-04-01 Edwards Lab Inc Embolectomy catheter
US3598119A (en) * 1970-02-02 1971-08-10 Charles A White Continuous paracervical anesthesia method and device
US3613684A (en) * 1969-09-19 1971-10-19 David S Sheridan Trocar catheters
US3630198A (en) * 1969-06-23 1971-12-28 Henkin Melvyn Lane Catheter placement device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444714A (en) * 1920-06-30 1923-02-06 Teshima Masakichi Medical appliance of suction type
US2281600A (en) * 1939-09-02 1942-05-05 Emma Elizabeth Ross Dilator
US2512569A (en) * 1947-09-26 1950-06-20 Jacob A Saffir Hypodermic needle
US3435826A (en) * 1964-05-27 1969-04-01 Edwards Lab Inc Embolectomy catheter
US3630198A (en) * 1969-06-23 1971-12-28 Henkin Melvyn Lane Catheter placement device
US3613684A (en) * 1969-09-19 1971-10-19 David S Sheridan Trocar catheters
US3598119A (en) * 1970-02-02 1971-08-10 Charles A White Continuous paracervical anesthesia method and device

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4431426A (en) * 1979-08-20 1984-02-14 Groshong Leroy E Methods and apparatus for intravenous therapy and hyperalimentation
US4586921A (en) * 1983-08-17 1986-05-06 Daniel Berson Method of applying a local anesthetic agent to a wound
US4795446A (en) * 1986-01-30 1989-01-03 Sherwood Medical Company Medical tube device
US4781185A (en) * 1986-07-21 1988-11-01 Gv Medical, Inc. Connecting apparatus for catheter assembly
US5160325A (en) * 1986-10-06 1992-11-03 C. R. Bard, Inc. Catheter with novel lumens shapes
US5514091A (en) * 1988-07-22 1996-05-07 Yoon; Inbae Expandable multifunctional manipulating instruments for various medical procedures
US6146401A (en) * 1988-07-22 2000-11-14 Yoon; Inbae Expandable multifunctional instruments for creating spaces at obstructed sites endoscopically
US5823947A (en) * 1988-07-22 1998-10-20 Yoon; Inbae Method of creating an operating space endoscopically at an obstructed site
US5800394A (en) * 1988-07-22 1998-09-01 Yoon; Inbae Method of creating an operating space endoscopically at an obstructed site
US5730725A (en) * 1988-07-22 1998-03-24 Yoon; Inbae Expandable multifunctional manipulating instruments for various medical procedures and methods therefor
US5865802A (en) * 1988-07-22 1999-02-02 Yoon; Inbae Expandable multifunctional instruments for creating spaces at obstructed sites endoscopically
US5656013A (en) * 1988-07-22 1997-08-12 Yoon; Inbae Method of using an expandable multifunctional manipulating instrument for various medical procedures
US6120437A (en) * 1988-07-22 2000-09-19 Inbae Yoon Methods for creating spaces at obstructed sites endoscopically and methods therefor
EP0357339A3 (en) * 1988-08-29 1990-09-05 Sorin Biomedical Inc. Cannula
EP0357339A2 (en) * 1988-08-29 1990-03-07 Sorin Biomedical Inc. Cannula
EP0611013A1 (en) * 1988-08-29 1994-08-17 Sorin Biomedical Inc. Femoral arterial cannula
US5445645A (en) * 1989-02-03 1995-08-29 Debbas; Elie Apparatus for locating a breast mass
WO1991016099A1 (en) * 1989-02-03 1991-10-31 Elie Debbas Apparatus and method for locating a breast mass
US5662674A (en) * 1989-02-03 1997-09-02 Debbas; Elie Apparatus for locating a breast mass
US4966583A (en) * 1989-02-03 1990-10-30 Elie Debbas Apparatus for locating a breast mass
US5183463A (en) * 1989-02-03 1993-02-02 Elie Debbas Apparatus for locating a breast mass
US6602218B2 (en) 1990-07-24 2003-08-05 Inbae Yoon Apparatus for ablation of the endometrium of the uterus
US6277089B1 (en) 1990-07-24 2001-08-21 Inbae Yoon Method for ablating portions of the uterus
US5141518A (en) * 1991-03-05 1992-08-25 Progressive Angioplasty Systems, Inc. Angioplasty catheter with close-fitting guidewire and tube
US5098411A (en) * 1991-06-10 1992-03-24 Pudenz-Schulte Medical Research Corporation Closed end hollow stylet assembly
EP1334744A2 (en) * 1994-05-09 2003-08-13 InnerDyne Inc. Apparatus for catheterization access
JP2011050730A (en) * 1994-05-09 2011-03-17 Tyco Healthcare Group Lp Method and apparatus for catheterization access
EP0843569A4 (en) * 1994-05-09 1998-12-09 Innerdyne Medical Inc Method and apparatus for catheterization access
EP0843569A1 (en) * 1994-05-09 1998-05-27 InnerDyne Inc. Method and apparatus for catheterization access
EP1334744A3 (en) * 1994-05-09 2003-08-27 InnerDyne Inc. Apparatus for catheterization access
US6059734A (en) * 1995-01-06 2000-05-09 Yoon; Inbae Methods of collecting tissue at obstructed anatomical sites
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
US6951555B1 (en) * 1998-03-16 2005-10-04 Chase Medical, L.P. Catheter having integral expandable/collapsible lumen
US6428498B2 (en) * 1998-04-14 2002-08-06 Renan Uflacker Suction catheter for rapidly debriding abscesses
US6309374B1 (en) 1998-08-03 2001-10-30 Insite Vision Incorporated Injection apparatus and method of using same
WO2000007530A3 (en) * 1998-08-03 2000-03-30 Insite Vision Inc Injection apparatus
US6299603B1 (en) 1998-08-03 2001-10-09 Karl I. Hecker Injection apparatus and method of using same
US6378526B1 (en) 1998-08-03 2002-04-30 Insite Vision, Incorporated Methods of ophthalmic administration
US6397849B1 (en) 1998-08-03 2002-06-04 Insite Vision Incorporated Methods of ophthalmic administration
USRE43434E1 (en) 1999-02-22 2012-05-29 Ross Anthony C Method and apparatus for treating intervertebral disks
US6436143B1 (en) * 1999-02-22 2002-08-20 Anthony C. Ross Method and apparatus for treating intervertebral disks
WO2002070052A1 (en) * 2001-02-28 2002-09-12 Disetronic Licensing Ag Cannula support with a flexible cannula
US20070112383A1 (en) * 2005-11-15 2007-05-17 Conlon Sean P Self-shielding suture anchor
US20070112385A1 (en) * 2005-11-15 2007-05-17 Conlon Sean P Expandable suture anchor
US20070112384A1 (en) * 2005-11-15 2007-05-17 Conlon Sean P Suture anchor applicator
US7850712B2 (en) 2005-11-15 2010-12-14 Ethicon Endo-Surgery, Inc. Self-shielding suture anchor
US7815659B2 (en) 2005-11-15 2010-10-19 Ethicon Endo-Surgery, Inc. Suture anchor applicator
US8137316B2 (en) * 2007-03-02 2012-03-20 Tyco Healthcare Group Lp Sheathless insertion stylet system for catheter placement
US20090112167A1 (en) * 2007-03-02 2009-04-30 Brett Haarala Sheathless insertion stylet system for catheter placement
US7938800B2 (en) 2008-05-13 2011-05-10 Lawrence R. Koh and Nina Merrell-Koh Needleshield assembly and methods of use
US20090287149A1 (en) * 2008-05-13 2009-11-19 Lawrence R. Koh and Nina Merrell-Koh, Trustees, or their Successor; under the Lawrence R. Koh and Needleshield assembly & methods of use
US9113866B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9173657B2 (en) 2011-12-15 2015-11-03 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9113879B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9113868B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9113867B2 (en) 2011-12-15 2015-08-25 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US9119615B2 (en) 2011-12-15 2015-09-01 Ethicon Endo-Surgery, Inc. Devices and methods for endoluminal plication
US8992547B2 (en) 2012-03-21 2015-03-31 Ethicon Endo-Surgery, Inc. Methods and devices for creating tissue plications
FR3012041A1 (en) * 2013-10-23 2015-04-24 Sebastien Besse injection needle

Similar Documents

Publication Publication Date Title
US3612050A (en) Intravascular catheters
US3459183A (en) Catheter placement unit with anesthetic
US3613684A (en) Trocar catheters
US3406687A (en) Guide and positioning means for a needle
US3416532A (en) Drainage tube with means for scraping away debris therewithin
US3314430A (en) Sump drain catheter
US3559643A (en) Catheter placement unit
US3380448A (en) Cervical-pudendal indwelling catheter set with tissue piercing means
US3358684A (en) Parenteral injection devices
US3568679A (en) Catheter placement unit
US4705040A (en) Percutaneous fixation of hollow organs
US5667514A (en) Device and method for inserting a flexible element into soft tissue
US5437603A (en) Apparatus and method for implanting prostheses within periurethral tissues
US6325812B1 (en) Trocar system having expandable port
US6638210B2 (en) Surgical apparatus and methods for delivery of a sling in the treatment of female urinary incontinence
US3539034A (en) Paracervical block anesthesia assembly
US5573517A (en) Expandable cannulas
US6361528B1 (en) Dynamically compliant catheter
US5556411A (en) Trocar assembly having a cannula retaining member
US3598118A (en) Method of introducing an intravenous catheter into the vascular system
US6277089B1 (en) Method for ablating portions of the uterus
US5743881A (en) Laparoscopic surgical instrument and method of using same
US5108375A (en) Closed system canulating device
US5259836A (en) Hysterography device and method
US6402770B1 (en) Method and apparatus for placing and maintaining a percutaneous tube into a body cavity