US3428046A - Catheter - Google Patents

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US3428046A
US3428046A US3428046DA US3428046A US 3428046 A US3428046 A US 3428046A US 3428046D A US3428046D A US 3428046DA US 3428046 A US3428046 A US 3428046A
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catheter
tube
urethra
shirred
material
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Robert K Remer
Harold N Vagenius
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Robert K Remer
Harold N Vagenius
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L29/00Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04Macromolecular materials
    • A61L29/043Polysaccharides

Description

Feb. 18, 19%9 REMER ET AL 3,428,046

CATHETER Filed April 6, 1965 I N VEN TOR.

United States Patent 3,428,046 CATHETER Robert K. Remer, 1500 Central St., Evanston, II]. 60201,

and Harold N. Vagenius, 1634 Elmwood Ave., Berwyn,

Ill. 60402 Filed Apr. 6, 1965, Ser. No. 446,124

US. Cl. 128349 Int. Cl. A61m 25/00, 29/02, 3/00 2 Claims ABSTRACT OF THE DISCLOSURE This invention relates to a novel catheter or cannula and to methods of using this catheter.

The present catheter or cannula is fashioned in the form of a thin-walled tube having openings at both ends. This tube is not sufficiently rigid, by itself, for introduction into the urethra or other body orifice or cavity. For this purpose, the opening or openings in the distal or leading end or end portion of my catheter are closed by the application of a urine (or other body fluid) soluble sealing material (such as methyl cellulose or polyvinyl alcohol) and the catheter is then rigidified by being filled, through its open proximal or trailing end, with a fluid under pressure, for instance, carbon dioxide or air or a concentrated solution of salt in water at body temperature in which salt solution the sealing material is insoluble. When so filled with fluid under pressure, the catheter or cannula is rendered sufliciently rigid for introduction into the urethra or other body cavity but will still yield or change its configuration to conform with the shape of the urethra or other body cavity. After the catheter has been introduced into the urethra or other body cavity, the rigidifying fluid is vented or permitted to drain out through the trailing catheter end. The soluble sealing material will dissolve to permit free outflow of urine or other body fluid through the catheter, and also to permit introduction into the bladder or other body cavity of therapeutic liquids or gases.

The preferred material of construction of our catheter is a natural or synthetic plastic or resinous material which is hydrophilic or easily wetted with water. For best results. this material is made self-lubricating by incorporating therewith a finely divided solid lubricant such as molybdenum disuliide, or graphite, or tungsten disulfide, or molybdenum selenide, or titanium disulfide. Suoh materials greatly facilitate the displacement of our catheter over a mucous surface.

Examples of preferred materials of construction are cellulose acetate, cellulose acetate butyrate, nylon, ethyl cellulose and, specifically, regenerated cellulose or viscose. Cellulose acetate or acetate butyrate may be treated as disclosed in US. Patent No. 2,774,679 to make it more hydrophilic.

'Dhe catheter may be formed by extrusion into tubular form, cutting the extruded tube into suitable lengths, and forming the desired aperture in the leading end of the tube, or the catheter may be molded or formed upon a suitable mandrel. After being formed, the catheter may be shirred, to reduce the apparent length of the tube to about whereby the storage space is reduced.

The catheter is easily heat sterilized. It may also be sterilized by exposure to sterilizing agents such as gamma rays, ethylene oxide gas, solutions of mercuric chloride, and the like. Or the catheter may be permanently sterilized by having incorporated therewith antiseptic dye-stuffs (which may be substantive to the material of construction), antiseptic quaternary compounds (if desired, of the type used as textile softening agents), phenyl mercuric chloride or acetate and many other antiseptic compositions.

Examples of the present catheter are illustrated diagrammatically in the appended drawings, in which:

FIG. 1 is a sideview of a catheter threaded over a syringe having a rubber bulb, the catheter being shown in longitudinal section;

FIG. 2 is a cross sectional view taken along the line 22 of FIG. 1;

FIG. 3 is a view similar to FIG. 1 but showing a catheter of different construction;

FIG. 4 is a cross sectional view taken along the line 44 of FIG. 3;

FIG. 5 is a view similar to that of FIG. 4 but showing a catheter of different construction;

FIG. 6 is a view similar to that of FIG. 5 but showing a catheter of still different construction;

FIG. 7 is a longitudinal cross sectional view of the catheter of FIG. 6;

FIG. 8 is a view similar to that of FIG. 6 but showing a catheter of still different construction;

FIG. 9 is a longitudinal cross sectional view of the catheter of FIG. 8;

FIG. 10 is a longitudinal cross sectional view showing the molding on a mandrel (shown in elevation) of the catheter of FIGS. 1 and 2;

FIG. 11 is a view similar to FIG. 10 showing the molded catheter in shirred form; and

FIG. 12 is a cross sectional view of an envelope or container surrounding a shirred catheter according to the present invention.

FIGS. 1 and 2 show a tubular catheter 10 having at its leading end 16 a generally elliptical aperture sealed with urine soluble material 14. A syringe 20 is threaded through the open trailing end 12 of the catheter and has a rubber bulb 22 filled with air or with a warm salt solution. Compression of the bulb 22 forces air or salt solution into the catheter 10 to rigidify the same.

FIGS. 3 and 4 show another tubular catheter 30 provided originally in shirred form. Behind the leading end 34 the catheter is formed with numerous pin holes 36 (for instance, 65 to per square inch) filled with urine solu'ble sealing material. The catheter is threaded over a tube 38 connected to a source of carbon dioxide or air or other gas under pressure. This gas has been admitted into the catheter, to expand the leading portion from its original shirred form, the trailing portion 32 still being shirred. On admission of additional gas under pressure, the catheter 30 will be completely expanded from its shirred 'form and rigidified.

FIG. 5 shows a tubular catheter having three axial intern-a1 ribs serving to preserve an axial channel even when the catheter is somewhat compressed radially.

FIGS. 6 and 7 show a tubular catheter 40 having a leading end opening sealed with sealing material 42 and provided with -a single helical internal rib 44 serving to preserve an internal axial channel even when the catheter is somewhat compressed radially.

FIGS. 8 and 9 show a tubular catheter 50 having a helical external rib 52 serving to strengthen the catheter against radial compression and to facilitate introduction of the catheter into the urethra. The external groove defined by the rib 52 can be filled with lubricant.

FIG. 10 shows a tubular catheter 60 similar to the catheter of FIGS. 1 and 2 and having at its leading end an opening sealed with urine soluble sealing material 62. The catheter 60 has been molded over a hollow mandrel 64, the opening at the leading end has been made, and the sealing material 62 has been applied before the catheter 60 is stripped from the mandrel. This stripping may be preceded by shirring, as shown in FIG. 11. The mandrel 64 may be made of flexible, inflatable and expandable material such as rubber or polypropylene which is inflated and expanded for the molding operation and deflated for the stripping operation, which is greatly facilit'ated by such deflation.

The molding on the mandrel 64 may consist in dipping the mandrel in a ripe cellulose xanthate solution followed by cellulose regeneration by dipping in sulfuric acid solution.

FIG. 12 shows a shirred catheter immersed in a sterilizing solution 74 within a sealed envelope or container 72. Such a package preserves the catheter against contamination.

It should be understood that the term catheter is used in this specification and in the claims in its broadest sense to mean a tubular member to be introduced into any body cavity or orifice lined with mucous membrance (such as the urethra, the rectum and the intestine, the esophagus and the stomach, the vagina and the uterus) to withdraw a fluid or to introduce some therapeutic material, or for diagnostic purposes.

By way of examples, the present catheter may be used to introduce an enema into the large intestine and/or colon; when introduced into the esophagus and stomach, expanded 'or ballooned int-o contact with the stomach wall and filled with a rbarium sulfate suspension or other X-ray contrast medium, to outline the stomach walls on X-ray exposure; when having a radioactive material incorporated therewith and introduced into a body cavity, for therapeutic irradiation of the cavity walls; and for many other purposes.

The specific shape and length of our catheter depends obviously on the specific cavity in which the catheter will be used. Generally, the tube may be one-sixteenth to one-eighth to one-quarter inch in diameter and may have a wall thickness of one to thirty mills.

When the catheter of the present invention is introduced through the urethra into the bladder the leading catheter end portion may be inflated or ballooned into contact with the bladder Wall, to strengthen and support the latter, which may be particularly helpful when the bladder wall is paralyzed. Such ballooning also serves to keep the catheter in position. In such case, I prefer to have the catheter end formed with pin holes as shown in FIGS. 3 and 4. If desired, electrically conductive ink lines can be printed on such a catheter to permit electrical stimulation of the paralyzed bladder wall by means of a low amperage current.

Many details of this invention may be varied without departing from the principles of this invention which are defined in the appended claims.

We claim:

1. A urethral catheter comprising a thin-walled flexible elongated tube having proximal and distal ends, said tube being initially in a limp condition, said tube provided with at least one opening at both ends, said distal end having its opening initially sealed with a urine-soluble adhesive, said tube when filled with a fluid in which said adhesive is insoluble being rigidified by said fluid for easy introduction into the urethra whereafter when said tube is introduced into the bladder and said adhesive is dissolved upon contact with the urine a drainage channel is established from the bladder and through the urethra, said catheter when empty of said fluid being sufiiciently flexibly limp so as to prevent its introduction into the urethra.

2. A catheter according to claim 1 made of regenerated cellulose and shirred to shorten its axial extension while preserving the axial passage therethrough.

References Cited UNITED STATES PATENTS 692,102 1/1902 Bachrach 106-191 1,379,156 5/ 1921 Acheson 106-204 2,016,493 10/1935 Haas 106-193 2,109,592 3/1938 Macht 106-193 2,237,221 4/1941 Flynn 128-349 X 2,736,700 2/1956 Graham et al. 106-193 2,850,015 9/1958 Baxter 128-227 2,863,453 12/1958 Gewecke 128-227 797,676 8/1905 Flowers 128-344 X 1,596,754 8/1926 Moschelle 128-350 2,508,6- 5/1950 Schmerl 128-276 2,707,471 5/1955 Koff 128-341 3,155,097 11/1964 Barron 128-350 3,292,627 12/1966 Harautuneian 128-349 DALTON L. TRULUCK, Primary Examiner.

US. Cl. X.R.

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Cited By (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516410A (en) * 1968-01-03 1970-06-23 Salomon Hakim Cerebro-ventricular catheter
US3570485A (en) * 1968-05-06 1971-03-16 Baxter Laboratories Inc Flexible catheter and inserting apparatus
US3604420A (en) * 1969-01-21 1971-09-14 Bard Inc C R Closed system drainage design
US3659588A (en) * 1970-04-08 1972-05-02 Medtronic Inc Catheter apparatus
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
US3732975A (en) * 1968-06-11 1973-05-15 G Poncy Sterile package for clinical thermometers and the like and method of making it
US3736939A (en) * 1972-01-07 1973-06-05 Kendall & Co Balloon catheter with soluble tip
US3815608A (en) * 1972-03-10 1974-06-11 East West Med Prod Retaining catheter
US4050449A (en) * 1976-02-25 1977-09-27 Medical Products Development Corporation Apparatus for exercising muscles of a female patient's pelvic diaphragm
US4063548A (en) * 1975-04-07 1977-12-20 American Medical Systems, Inc. Method and apparatus for micturition analysis
US4203169A (en) * 1977-09-14 1980-05-20 Medeci Developments Limited Urine collection device
EP0029185A1 (en) * 1979-11-16 1981-05-27 Siemens Aktiengesellschaft Plastic tube
WO1984001903A1 (en) * 1982-11-12 1984-05-24 Thomas J Fogarty Double lumen dilatation catheter
US4553959A (en) * 1982-01-27 1985-11-19 The Victoria University Of Manchester Urethral catheter
US4557274A (en) * 1982-06-07 1985-12-10 Cawood Charles David Midstream urine collector
US4571241A (en) * 1983-12-16 1986-02-18 Christopher T Graham Urinary catheter with collapsible urethral tube
US4710169A (en) * 1983-12-16 1987-12-01 Christopher T Graham Urinary catheter with collapsible urethral tube
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US4867154A (en) * 1987-10-08 1989-09-19 The University Of Virginia Alumni Patents Foundation Endotracheal tube stabilizing devices
US4950232A (en) * 1987-08-11 1990-08-21 Surelab Superior Research Laboratories Cerebrospinal fluid shunt system
US5041101A (en) * 1989-06-05 1991-08-20 Helix Medical, Inc. Hysterectomy drain appliance
US5087247A (en) * 1990-08-28 1992-02-11 Cardiovascular Designs, Inc. Balloon perfusion catheter
US5116327A (en) * 1989-06-05 1992-05-26 Helix Medical, Inc. Hysterectomy drain appliance
WO1992019308A1 (en) * 1991-05-03 1992-11-12 Burnham Warren R Catheter with irregular inner and/or outer surfaces
US5335410A (en) * 1993-03-15 1994-08-09 Burnham Warren R Method of making ultra small diameter catheters and of reinforced tubular product
US5405338A (en) * 1993-08-19 1995-04-11 Cordis Corporation Helically wound catheters
US5423884A (en) * 1992-08-28 1995-06-13 Siemens Elema Ab Medical electrode and electrode implantation device
US5423774A (en) * 1994-05-17 1995-06-13 Arrow International Investment Corp. Introducer sheath with irregular outer surface
US5529574A (en) * 1992-08-21 1996-06-25 Frackelton; James P. Method and apparatus for treatment of the prostate
US5634901A (en) * 1992-11-02 1997-06-03 Localmed, Inc. Method of using a catheter sleeve
US5871475A (en) * 1995-06-05 1999-02-16 Frassica; James J. Catheter system
US5964732A (en) * 1997-02-07 1999-10-12 Abbeymoor Medical, Inc. Urethral apparatus with position indicator and methods of use thereof
US5971967A (en) * 1997-08-19 1999-10-26 Abbeymoor Medical, Inc. Urethral device with anchoring system
US6053904A (en) * 1996-04-05 2000-04-25 Robert M. Scribner Thin wall catheter introducer system
US6251098B1 (en) 1992-01-24 2001-06-26 I-Flow, Corp. Fluid container for use with platen pump
US6358239B1 (en) 1992-01-24 2002-03-19 I-Flow Corporation Platen pump
US20020045855A1 (en) * 1997-02-10 2002-04-18 Essex Technology, Inc. Rotate to advance catheterization system
US20050251108A1 (en) * 1999-09-27 2005-11-10 Essex Technology, Inc. Rotate-to-advance catheterization system
US20060206002A1 (en) * 2005-02-28 2006-09-14 Frassica James J Rotate-to-advance catheterization system
US20070005041A1 (en) * 2005-05-04 2007-01-04 Frassica James J Rotate-to-advance catheterization system
US20080027379A1 (en) * 2006-07-28 2008-01-31 Taylor Medical, Inc. Catheter components formed of polymer with particles or fibers
US20080188770A1 (en) * 2007-01-29 2008-08-07 Hollister Incorporated Device and Method for the Collection of a Urine Sample
US20080215029A1 (en) * 1993-01-22 2008-09-04 I-Flow Corporation Platen pump
US20090005645A1 (en) * 2005-05-04 2009-01-01 Frassica James J Rotate-to- advance catheterization system
US20090162585A1 (en) * 2007-12-21 2009-06-25 Cook Incorporated Jejunal feeding tube
US20100022950A1 (en) * 2008-07-23 2010-01-28 Boston Scientific Scimed, Inc. Catheter having electrically conductive pathways
US20100069718A1 (en) * 2005-05-04 2010-03-18 Frassica James J Rotate-to-advance catheterization system
US20100076264A1 (en) * 2005-05-04 2010-03-25 Stephen Tallarida Rotate-to-advance catheterization system
US20100081879A1 (en) * 2005-05-04 2010-04-01 Frassica James J Rotate-to-advance catheterization system
US20100312226A1 (en) * 2009-06-03 2010-12-09 John Anderson Armistead Barb-ended, self-actuating, partially indwelling and continually retained urinary catheter
US20110054448A1 (en) * 2009-08-28 2011-03-03 Navilyst Medical, Inc. Medical device containing catheter anchoring feature
US8317678B2 (en) 2005-05-04 2012-11-27 Olympus Endo Technology America Inc. Rotate-to-advance catheterization system
US8435229B2 (en) 2006-02-28 2013-05-07 Olympus Endo Technology America Inc. Rotate-to-advance catheterization system
US8574220B2 (en) 2006-02-28 2013-11-05 Olympus Endo Technology America Inc. Rotate-to-advance catheterization system
US20140100551A1 (en) * 2011-06-01 2014-04-10 Catheasy Vasteras Ab Flushing device and a catheter kit comprising a flushing device
US8777841B2 (en) 2007-05-18 2014-07-15 Olympus Endo Technology America Inc. Rotate-to-advance catheterization system

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US692102A (en) * 1901-04-04 1902-01-28 David Bachrach Nitrocellulose.
US797676A (en) * 1904-08-04 1905-08-22 Willis P Flowers Vaginal syringe.
US1379156A (en) * 1920-12-14 1921-05-24 Jr Edward Goodrich Acheson Method of preparing graphitized vulcanized fiber
US1596754A (en) * 1923-10-30 1926-08-17 Judson D Moschelle Reenforced tubing
US2016493A (en) * 1934-04-14 1935-10-08 Paul C Haas Composite bearing
US2109592A (en) * 1936-04-01 1938-03-01 Du Pont Preparation of plastics
US2237221A (en) * 1938-09-29 1941-04-01 Wardlyn Corp Application of cellulose derivatives
US2508690A (en) * 1948-07-13 1950-05-23 Schmerl Egon Fritz Gastrointestinal tube
US2707471A (en) * 1952-12-12 1955-05-03 Fred W Koff Surgical appliance
US2736700A (en) * 1954-03-16 1956-02-28 Jr Charles D Graham Lubricant for cold drawing of thorium wire
US2850015A (en) * 1957-03-04 1958-09-02 Thomas R Baxter Single-use disposable vaginal syringe
US2863453A (en) * 1956-12-04 1958-12-09 Baxter Laboratories Inc Syringe nozzle
US3155097A (en) * 1962-07-17 1964-11-03 Barron James Feeding and suction tubes
US3292627A (en) * 1963-03-25 1966-12-20 Pharmaseal Lab Catheter

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US692102A (en) * 1901-04-04 1902-01-28 David Bachrach Nitrocellulose.
US797676A (en) * 1904-08-04 1905-08-22 Willis P Flowers Vaginal syringe.
US1379156A (en) * 1920-12-14 1921-05-24 Jr Edward Goodrich Acheson Method of preparing graphitized vulcanized fiber
US1596754A (en) * 1923-10-30 1926-08-17 Judson D Moschelle Reenforced tubing
US2016493A (en) * 1934-04-14 1935-10-08 Paul C Haas Composite bearing
US2109592A (en) * 1936-04-01 1938-03-01 Du Pont Preparation of plastics
US2237221A (en) * 1938-09-29 1941-04-01 Wardlyn Corp Application of cellulose derivatives
US2508690A (en) * 1948-07-13 1950-05-23 Schmerl Egon Fritz Gastrointestinal tube
US2707471A (en) * 1952-12-12 1955-05-03 Fred W Koff Surgical appliance
US2736700A (en) * 1954-03-16 1956-02-28 Jr Charles D Graham Lubricant for cold drawing of thorium wire
US2863453A (en) * 1956-12-04 1958-12-09 Baxter Laboratories Inc Syringe nozzle
US2850015A (en) * 1957-03-04 1958-09-02 Thomas R Baxter Single-use disposable vaginal syringe
US3155097A (en) * 1962-07-17 1964-11-03 Barron James Feeding and suction tubes
US3292627A (en) * 1963-03-25 1966-12-20 Pharmaseal Lab Catheter

Cited By (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516410A (en) * 1968-01-03 1970-06-23 Salomon Hakim Cerebro-ventricular catheter
US3570485A (en) * 1968-05-06 1971-03-16 Baxter Laboratories Inc Flexible catheter and inserting apparatus
US3732975A (en) * 1968-06-11 1973-05-15 G Poncy Sterile package for clinical thermometers and the like and method of making it
US3604420A (en) * 1969-01-21 1971-09-14 Bard Inc C R Closed system drainage design
US3659588A (en) * 1970-04-08 1972-05-02 Medtronic Inc Catheter apparatus
US3680544A (en) * 1970-09-09 1972-08-01 James P Shinnick Transthoracic cannula-type device for cardiopulmonary resuscitation
US3736939A (en) * 1972-01-07 1973-06-05 Kendall & Co Balloon catheter with soluble tip
US3815608A (en) * 1972-03-10 1974-06-11 East West Med Prod Retaining catheter
US4063548A (en) * 1975-04-07 1977-12-20 American Medical Systems, Inc. Method and apparatus for micturition analysis
US4050449A (en) * 1976-02-25 1977-09-27 Medical Products Development Corporation Apparatus for exercising muscles of a female patient's pelvic diaphragm
US4203169A (en) * 1977-09-14 1980-05-20 Medeci Developments Limited Urine collection device
EP0029185A1 (en) * 1979-11-16 1981-05-27 Siemens Aktiengesellschaft Plastic tube
US4553959A (en) * 1982-01-27 1985-11-19 The Victoria University Of Manchester Urethral catheter
US4557274A (en) * 1982-06-07 1985-12-10 Cawood Charles David Midstream urine collector
WO1984001903A1 (en) * 1982-11-12 1984-05-24 Thomas J Fogarty Double lumen dilatation catheter
US4479497A (en) * 1982-11-12 1984-10-30 Thomas J. Fogarty Double lumen dilatation catheter
US4571241A (en) * 1983-12-16 1986-02-18 Christopher T Graham Urinary catheter with collapsible urethral tube
US4710169A (en) * 1983-12-16 1987-12-01 Christopher T Graham Urinary catheter with collapsible urethral tube
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US4950232A (en) * 1987-08-11 1990-08-21 Surelab Superior Research Laboratories Cerebrospinal fluid shunt system
US4867154A (en) * 1987-10-08 1989-09-19 The University Of Virginia Alumni Patents Foundation Endotracheal tube stabilizing devices
US5041101A (en) * 1989-06-05 1991-08-20 Helix Medical, Inc. Hysterectomy drain appliance
US5116327A (en) * 1989-06-05 1992-05-26 Helix Medical, Inc. Hysterectomy drain appliance
US5087247A (en) * 1990-08-28 1992-02-11 Cardiovascular Designs, Inc. Balloon perfusion catheter
WO1992019308A1 (en) * 1991-05-03 1992-11-12 Burnham Warren R Catheter with irregular inner and/or outer surfaces
US5244619A (en) * 1991-05-03 1993-09-14 Burnham Warren R Method of making catheter with irregular inner and/or outer surfaces to reduce travelling friction
US5496292A (en) * 1991-05-03 1996-03-05 Burnham; Warren Catheter with irregular inner and/or outer surfaces to reduce travelling friction
US6251098B1 (en) 1992-01-24 2001-06-26 I-Flow, Corp. Fluid container for use with platen pump
US20050211725A1 (en) * 1992-01-24 2005-09-29 Rake Kenneth W Platen pump
US7083068B2 (en) 1992-01-24 2006-08-01 I-Flow Corporation Platen pump
US6871759B2 (en) 1992-01-24 2005-03-29 I-Flow Corporation Platen pump
US7337922B2 (en) 1992-01-24 2008-03-04 I-Flow Corporation Platen pump
US20040108333A1 (en) * 1992-01-24 2004-06-10 Rake Kenneth W. Platen pump
US6358239B1 (en) 1992-01-24 2002-03-19 I-Flow Corporation Platen pump
US5529574A (en) * 1992-08-21 1996-06-25 Frackelton; James P. Method and apparatus for treatment of the prostate
US5423884A (en) * 1992-08-28 1995-06-13 Siemens Elema Ab Medical electrode and electrode implantation device
US5876374A (en) * 1992-11-02 1999-03-02 Localmed, Inc. Catheter sleeve for use with a balloon catheter
US5634901A (en) * 1992-11-02 1997-06-03 Localmed, Inc. Method of using a catheter sleeve
US20080215029A1 (en) * 1993-01-22 2008-09-04 I-Flow Corporation Platen pump
WO1994021420A1 (en) * 1993-03-15 1994-09-29 Burnham Warren R Method and apparatus for small catheters and reinforced tubular product
US5335410A (en) * 1993-03-15 1994-08-09 Burnham Warren R Method of making ultra small diameter catheters and of reinforced tubular product
US5405338A (en) * 1993-08-19 1995-04-11 Cordis Corporation Helically wound catheters
US5423774A (en) * 1994-05-17 1995-06-13 Arrow International Investment Corp. Introducer sheath with irregular outer surface
US5871475A (en) * 1995-06-05 1999-02-16 Frassica; James J. Catheter system
US6053904A (en) * 1996-04-05 2000-04-25 Robert M. Scribner Thin wall catheter introducer system
US6258060B1 (en) 1997-02-07 2001-07-10 Abbeymoon Medical, Inc. Urethral apparatus with position indicator and methods of use thereof
US5964732A (en) * 1997-02-07 1999-10-12 Abbeymoor Medical, Inc. Urethral apparatus with position indicator and methods of use thereof
US8764631B2 (en) 1997-02-10 2014-07-01 Olympus Endo Technology America Inc. Rotate to advance catheterization system
US20060079835A1 (en) * 1997-02-10 2006-04-13 Frassica James J Rotate to advance catheterization system
US20020045855A1 (en) * 1997-02-10 2002-04-18 Essex Technology, Inc. Rotate to advance catheterization system
US20110178370A1 (en) * 1997-02-10 2011-07-21 Frassica James J Rotate to advance catheterization system
US7806888B2 (en) 1997-02-10 2010-10-05 Spirus Medical, Inc. Rotate to advance catheterization system
US5971967A (en) * 1997-08-19 1999-10-26 Abbeymoor Medical, Inc. Urethral device with anchoring system
US6221060B1 (en) 1997-08-19 2001-04-24 Abbeymoor Medical, Inc. Urethral device with anchoring system
US7909799B2 (en) 1999-09-27 2011-03-22 Spirus Medical, Inc. Rotate-to-advance catheterization system
US9220395B2 (en) 1999-09-27 2015-12-29 James J. Frassica Rotate-to-advance catheterization system
US20050251108A1 (en) * 1999-09-27 2005-11-10 Essex Technology, Inc. Rotate-to-advance catheterization system
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