US2212334A - Catheter - Google Patents
Catheter Download PDFInfo
- Publication number
- US2212334A US2212334A US96189A US9618936A US2212334A US 2212334 A US2212334 A US 2212334A US 96189 A US96189 A US 96189A US 9618936 A US9618936 A US 9618936A US 2212334 A US2212334 A US 2212334A
- Authority
- US
- United States
- Prior art keywords
- catheter
- catheters
- ray
- tubing
- cellulosic
- 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
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Classifications
-
- 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
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0108—Steering means as part of the catheter or advancing means; Markers for positioning using radio-opaque or ultrasound markers
Definitions
- This invention relates Ito improvements in catheters and their mode of manufacture, especial reference being had to small appropriately flexible tubing and to ureteral catheters made therefrom.
- catheters intended for the taking of specimens'of urine from the kidneys, the ureter and the bladder have been made by Winding silk on a small wire mandrel and then coating the silk with varnish or the like before removing the mandrel.
- Such catheters have been superficially opaqued for X-ray purposes by Supplying bismuth powder or the like to the varnish. But such catheters lack durability; they do not stand heat well; are not easily sterilized; and they lack desired smoothness.
- the main objects of this invention are to provide a better and safer catheter; to provide resiliently flexible catheters better adapted to withstand sterilization, especially by boiling or other application of heat; to provide smoother surfaced catheters, especially of small gauge; to
- Figure 1 is a perspective view of a finished catheter.
- Fig. 2 is a diagrammatic view of the catheter in use with appropriate anatomical structures indicated in dotted outline.
- Fig. 3 is a cross section of the catheter tubing, to show impregnation of the cellulosic wall with 50 bismuth powder or other X-ray opaque material.
- the catheter l consists of a thin tube about twenty-six inches long having cellulosic walls 2 impregnated with bismuth powder indicated at 3. Said catheter has inlet openings 4 and 5 at or near one end; and the opposite end is open as at 6. The external diameter of the catheters ranges from 1.5 mm. to 5 mm.
- the X-ray opacity of the walls 2 is varied at regular calibration intervals or points 1, as by appropriate application of bismuth paint in finishing the catheter. This may serve also for direct visual indication of linear measurement, for which purpose the paint may be specially pigmented if desired.
- Suitable catheter tubing may be made by first mixing bismuth powder with appropriate cellulosic material, and then extruding the plastic compound ina manner generally understood in the tube moulding art. Various degrees of heat and pressure may be applied, depending upon the specific quality of the plastic .used. More or less of said powder may be used according to the degree of opacity desired.
- the temperature range depends upon the exact make of the compound used and provided that the material is sufliciently plastic for tubular extrusion. This is a factor which can best be adjusted from time to time as the process is carried on,
- the desired flexibility and resilience of the tubing may be attained by due selection from'a well-known quality range of said material.
- Various cellulose derivatives are adapted for my use, but I especially prefer cellulose acetate.
- the method or making a thin walled small gage flexible catheter adapted for bladder and kidney exploration which consists in extruding a plastic cellulosic material through a tubular molding die and at uniform brief intervals forcibly injecting into the stream of said material as it is being molded a small quantity of similar material impregnated with X-ray opaque material.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
Description
G. W. WALLERICH Aug. 20, 1940.-
CATHETER Filed Aug. 15, 1936 KIDNEY v UIPE 75/? R 1 m v M cel lulozzzc' Ma fer: a!
a a Maierv'al Mr W i .m M m w Patented Aug. 20, 1940 CATHETER George W. VVallerich, River Forest, 111., assignor to V. Mueller & 00., tion of Illinois Ghicago, 111., a corpora- Application August 15, 1936, Serial No. 96,189
1 Claim.
This invention relates Ito improvements in catheters and their mode of manufacture, especial reference being had to small appropriately flexible tubing and to ureteral catheters made therefrom.
l-leretofore, such catheters intended for the taking of specimens'of urine from the kidneys, the ureter and the bladder have been made by Winding silk on a small wire mandrel and then coating the silk with varnish or the like before removing the mandrel. Such catheters have been superficially opaqued for X-ray purposes by Supplying bismuth powder or the like to the varnish. But such catheters lack durability; they do not stand heat well; are not easily sterilized; and they lack desired smoothness.
I am also aware that cellulosic tubes have been made by extruding plastic material from a press; but I have never known of catheter tubing or any kind of tubing fit for ureteral or urethral catheterization being thus made; and I am not aware of X-ray opaque material ever having been mixed with any such extrusion material for any purpose whatever.
The main objects of this invention are to provide a better and safer catheter; to provide resiliently flexible catheters better adapted to withstand sterilization, especially by boiling or other application of heat; to provide smoother surfaced catheters, especially of small gauge; to
provide a nonabsorptive catheter; to provide cellulosic catheters and especially such devices adapted to cast X-ray shadows during use; to
provide for calibration of such catheters, both 35 for direct surface reading and also for X-ray observation; to provide for extrusion manufacture of Y-ray opaque catheter tubing; and to provide for such opacity calibration of catheters as to render X-ray shadows readable in terms of linear measurement.
This invention is illustrated by the accompanying drawing in which: Figure 1 is a perspective view of a finished catheter. 45 Fig. 2 is a diagrammatic view of the catheter in use with appropriate anatomical structures indicated in dotted outline.
Fig. 3 is a cross section of the catheter tubing, to show impregnation of the cellulosic wall with 50 bismuth powder or other X-ray opaque material.
Referring to said drawing the catheter l consists of a thin tube about twenty-six inches long having cellulosic walls 2 impregnated with bismuth powder indicated at 3. Said catheter has inlet openings 4 and 5 at or near one end; and the opposite end is open as at 6. The external diameter of the catheters ranges from 1.5 mm. to 5 mm.
The X-ray opacity of the walls 2 is varied at regular calibration intervals or points 1, as by appropriate application of bismuth paint in finishing the catheter. This may serve also for direct visual indication of linear measurement, for which purpose the paint may be specially pigmented if desired.
Suitable catheter tubing may be made by first mixing bismuth powder with appropriate cellulosic material, and then extruding the plastic compound ina manner generally understood in the tube moulding art. Various degrees of heat and pressure may be applied, depending upon the specific quality of the plastic .used. More or less of said powder may be used according to the degree of opacity desired.
The temperature range depends upon the exact make of the compound used and provided that the material is sufliciently plastic for tubular extrusion. This is a factor which can best be adjusted from time to time as the process is carried on,
The desired flexibility and resilience of the tubing may be attained by due selection from'a well-known quality range of said material. Various cellulose derivatives are adapted for my use, but I especially prefer cellulose acetate.
It is to be understood that some of the details set forth may be altered or omitted without departing from the spiritof the invention as defined by the following claim:
I claim:
The method or making a thin walled small gage flexible catheter adapted for bladder and kidney exploration which consists in extruding a plastic cellulosic material through a tubular molding die and at uniform brief intervals forcibly injecting into the stream of said material as it is being molded a small quantity of similar material impregnated with X-ray opaque material. 1
GEORGE w. WALLERICH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96189A US2212334A (en) | 1936-08-15 | 1936-08-15 | Catheter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96189A US2212334A (en) | 1936-08-15 | 1936-08-15 | Catheter |
Publications (1)
Publication Number | Publication Date |
---|---|
US2212334A true US2212334A (en) | 1940-08-20 |
Family
ID=22256199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US96189A Expired - Lifetime US2212334A (en) | 1936-08-15 | 1936-08-15 | Catheter |
Country Status (1)
Country | Link |
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US (1) | US2212334A (en) |
Cited By (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857915A (en) * | 1956-04-02 | 1958-10-28 | David S Sheridan | X-ray catheter |
US3190290A (en) * | 1962-02-08 | 1965-06-22 | Brunswick Corp | Intercostal catheters |
US3217705A (en) * | 1962-05-02 | 1965-11-16 | Orman B Billings | Device for testing internal bleeding |
US3336918A (en) * | 1962-12-24 | 1967-08-22 | Us Catheter & Instr Corp | Radiopaque, urethane-coated catheter and method for coating same |
DE1965487A1 (en) * | 1968-12-31 | 1970-11-19 | Chemplast Inc | Catheter and process for its manufacture |
US3938529A (en) * | 1974-07-22 | 1976-02-17 | Gibbons Robert P | Indwelling ureteral catheter |
US3943929A (en) * | 1974-11-15 | 1976-03-16 | The Kendall Company | Multi-chamber container and method |
US3995642A (en) * | 1975-04-03 | 1976-12-07 | Medical Dynamics, Inc. | Method and apparatus for retaining a drain tube within a ureter |
US4105732A (en) * | 1975-11-21 | 1978-08-08 | Krandex Corp. | Radiographic opaque and conductive striped medical tubes |
US4168699A (en) * | 1977-08-08 | 1979-09-25 | Mentor Corporation | Sampling catheter |
FR2421625A1 (en) * | 1978-04-07 | 1979-11-02 | Medical Eng Corp | URETERAL CATHETER PROBE |
EP0010757A1 (en) * | 1978-11-03 | 1980-05-14 | Intermedicat GmbH | Catheter having contrast strips opaque to X-rays |
US4317791A (en) * | 1976-07-10 | 1982-03-02 | Bayer Aktiengesellschaft | Process for the production of non-cellular molded articles |
US4444185A (en) * | 1981-08-19 | 1984-04-24 | Shugar Martin A | Fiberoptic tracheotomy method |
US4469483A (en) * | 1982-08-25 | 1984-09-04 | Baxter Travenol Laboratories, Inc. | Radiopaque catheter |
US4671795A (en) * | 1984-11-19 | 1987-06-09 | Mulchin William L | Permanent/retrievable ureteral catheter |
US4671291A (en) * | 1986-03-31 | 1987-06-09 | Siemens Medical Systems, Inc. | Angle encoding catheter |
US4722344A (en) * | 1986-05-23 | 1988-02-02 | Critikon, Inc. | Radiopaque polyurethanes and catheters formed therefrom |
US4813925A (en) * | 1987-04-21 | 1989-03-21 | Medical Engineering Corporation | Spiral ureteral stent |
US4838879A (en) * | 1986-05-08 | 1989-06-13 | Terumo Kabushiki Kaisha | Catheter |
US4931037A (en) * | 1988-10-13 | 1990-06-05 | International Medical, Inc. | In-dwelling ureteral stent and injection stent assembly, and method of using same |
US4967743A (en) * | 1987-03-11 | 1990-11-06 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US5065754A (en) * | 1990-06-06 | 1991-11-19 | Ballard Medical Products | Aspirating catheter tube inserter |
US5107829A (en) * | 1987-03-11 | 1992-04-28 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US5133345A (en) * | 1987-03-11 | 1992-07-28 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US5177170A (en) * | 1992-07-02 | 1993-01-05 | Miles Inc. | Radiopaque polyurethanes |
US5215522A (en) * | 1984-07-23 | 1993-06-01 | Ballard Medical Products | Single use medical aspirating device and method |
US5277177A (en) * | 1984-07-23 | 1994-01-11 | Ballard Medical Products | Single use medical aspirating device and method |
US5346981A (en) * | 1993-01-13 | 1994-09-13 | Miles Inc. | Radiopaque polyurethanes |
US5456705A (en) * | 1993-03-31 | 1995-10-10 | Medtronic, Inc. | Medical electrical lead having a torque indicator |
US5694922A (en) * | 1994-05-18 | 1997-12-09 | Ballard Medical Products | Swivel tube connections with hermetic seals |
US5895424A (en) * | 1996-11-12 | 1999-04-20 | Mentor Corporation | Prosthesis having an alignment indicator and method of using same |
US5919170A (en) * | 1993-02-01 | 1999-07-06 | Mentor Corporation | Urinary catheter |
US5921952A (en) * | 1997-08-14 | 1999-07-13 | Boston Scientific Corporation | Drainage catheter delivery system |
US6036682A (en) * | 1997-12-02 | 2000-03-14 | Scimed Life Systems, Inc. | Catheter having a plurality of integral radiopaque bands |
US6248100B1 (en) | 1997-08-14 | 2001-06-19 | Scimed Life Systems, Inc. | Drainage catheter delivery system |
US6494203B1 (en) | 1994-08-19 | 2002-12-17 | Ballard Medical Products | Medical aspirating/ventilating closed system improvements and methods |
US6500158B1 (en) * | 1997-03-26 | 2002-12-31 | The Trustees Of Columbia University In The City Of New York | Method of inducing negative pressure in the urinary collecting system and apparatus therefor |
US6796976B1 (en) | 1998-03-06 | 2004-09-28 | Scimed Life Systems, Inc. | Establishing access to the body |
US20070112373A1 (en) * | 2005-05-12 | 2007-05-17 | C.R. Bard Inc. | Removable embolus blood clot filter |
US20090299404A1 (en) * | 2006-05-02 | 2009-12-03 | C.R. Bard, Inc. | Vena cava filter formed from a sheet |
US20090326560A1 (en) * | 2008-06-27 | 2009-12-31 | Lampropoulos Fred P | Catheter with radiopaque marker |
US20100030254A1 (en) * | 2006-06-05 | 2010-02-04 | C. R. Bard, Inc. | Embolus Blood Clot Filter Utilizable With A Single Delivery System Or A Single Retrieval System In One of A Femoral or Jugular Access |
US20100030253A1 (en) * | 2005-11-18 | 2010-02-04 | C.R. Brard, Inc. | Vena cava filter with filament |
US20100174310A1 (en) * | 2004-08-04 | 2010-07-08 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US20100256669A1 (en) * | 2005-12-02 | 2010-10-07 | C.R. Bard, Inc. | Helical Vena Cava Filter |
US20100318115A1 (en) * | 2005-05-12 | 2010-12-16 | C.R. Bard, Inc. | Tubular filter |
US20110077622A1 (en) * | 2009-09-25 | 2011-03-31 | Boston Scientific Scimed, Inc. | Delivery system having stent locking structure |
US20110160739A1 (en) * | 2009-12-30 | 2011-06-30 | Boston Scientific Scimed, Inc. | Rotatable Connection Between a Tubular Member and an Elongate Wire of a Catheter |
US8430903B2 (en) | 2005-08-09 | 2013-04-30 | C. R. Bard, Inc. | Embolus blood clot filter and delivery system |
US8690906B2 (en) | 1998-09-25 | 2014-04-08 | C.R. Bard, Inc. | Removeable embolus blood clot filter and filter delivery unit |
US9204956B2 (en) | 2002-02-20 | 2015-12-08 | C. R. Bard, Inc. | IVC filter with translating hooks |
US9265637B2 (en) | 2010-11-19 | 2016-02-23 | Boston Scientific Scimed, Inc. | Rapid exchange stent delivery system |
US9339631B2 (en) | 2009-09-25 | 2016-05-17 | Boston Scientific Scimed, Inc. | Locking mechanism for a medical device |
US10849771B2 (en) | 2011-06-27 | 2020-12-01 | Boston Scientific Scimed, Inc. | Stent delivery systems and methods for making and using stent delivery systems |
-
1936
- 1936-08-15 US US96189A patent/US2212334A/en not_active Expired - Lifetime
Cited By (90)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857915A (en) * | 1956-04-02 | 1958-10-28 | David S Sheridan | X-ray catheter |
US3190290A (en) * | 1962-02-08 | 1965-06-22 | Brunswick Corp | Intercostal catheters |
US3217705A (en) * | 1962-05-02 | 1965-11-16 | Orman B Billings | Device for testing internal bleeding |
US3336918A (en) * | 1962-12-24 | 1967-08-22 | Us Catheter & Instr Corp | Radiopaque, urethane-coated catheter and method for coating same |
DE1965487A1 (en) * | 1968-12-31 | 1970-11-19 | Chemplast Inc | Catheter and process for its manufacture |
US3938529A (en) * | 1974-07-22 | 1976-02-17 | Gibbons Robert P | Indwelling ureteral catheter |
US3943929A (en) * | 1974-11-15 | 1976-03-16 | The Kendall Company | Multi-chamber container and method |
US3995642A (en) * | 1975-04-03 | 1976-12-07 | Medical Dynamics, Inc. | Method and apparatus for retaining a drain tube within a ureter |
US4105732A (en) * | 1975-11-21 | 1978-08-08 | Krandex Corp. | Radiographic opaque and conductive striped medical tubes |
US4317791A (en) * | 1976-07-10 | 1982-03-02 | Bayer Aktiengesellschaft | Process for the production of non-cellular molded articles |
US4168699A (en) * | 1977-08-08 | 1979-09-25 | Mentor Corporation | Sampling catheter |
FR2421625A1 (en) * | 1978-04-07 | 1979-11-02 | Medical Eng Corp | URETERAL CATHETER PROBE |
US4212304A (en) * | 1978-04-07 | 1980-07-15 | Medical Engineering Corp. | Uretheral catheter stent |
EP0010757A1 (en) * | 1978-11-03 | 1980-05-14 | Intermedicat GmbH | Catheter having contrast strips opaque to X-rays |
US4444185A (en) * | 1981-08-19 | 1984-04-24 | Shugar Martin A | Fiberoptic tracheotomy method |
US4469483A (en) * | 1982-08-25 | 1984-09-04 | Baxter Travenol Laboratories, Inc. | Radiopaque catheter |
US5611336A (en) * | 1984-07-23 | 1997-03-18 | Ballard Medical Products, Inc. | Single use medical aspirating device and method |
US5277177A (en) * | 1984-07-23 | 1994-01-11 | Ballard Medical Products | Single use medical aspirating device and method |
US5215522A (en) * | 1984-07-23 | 1993-06-01 | Ballard Medical Products | Single use medical aspirating device and method |
US4671795A (en) * | 1984-11-19 | 1987-06-09 | Mulchin William L | Permanent/retrievable ureteral catheter |
US4671291A (en) * | 1986-03-31 | 1987-06-09 | Siemens Medical Systems, Inc. | Angle encoding catheter |
US4838879A (en) * | 1986-05-08 | 1989-06-13 | Terumo Kabushiki Kaisha | Catheter |
US4722344A (en) * | 1986-05-23 | 1988-02-02 | Critikon, Inc. | Radiopaque polyurethanes and catheters formed therefrom |
US5107829A (en) * | 1987-03-11 | 1992-04-28 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US5133345A (en) * | 1987-03-11 | 1992-07-28 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US4967743A (en) * | 1987-03-11 | 1990-11-06 | Ballard Medical Products | Neonatal closed system for involuntary aspiration and ventilation, and method |
US4813925A (en) * | 1987-04-21 | 1989-03-21 | Medical Engineering Corporation | Spiral ureteral stent |
US4931037A (en) * | 1988-10-13 | 1990-06-05 | International Medical, Inc. | In-dwelling ureteral stent and injection stent assembly, and method of using same |
US5065754A (en) * | 1990-06-06 | 1991-11-19 | Ballard Medical Products | Aspirating catheter tube inserter |
US5177170A (en) * | 1992-07-02 | 1993-01-05 | Miles Inc. | Radiopaque polyurethanes |
US5346981A (en) * | 1993-01-13 | 1994-09-13 | Miles Inc. | Radiopaque polyurethanes |
US5919170A (en) * | 1993-02-01 | 1999-07-06 | Mentor Corporation | Urinary catheter |
US5456705A (en) * | 1993-03-31 | 1995-10-10 | Medtronic, Inc. | Medical electrical lead having a torque indicator |
US5694922A (en) * | 1994-05-18 | 1997-12-09 | Ballard Medical Products | Swivel tube connections with hermetic seals |
US6494203B1 (en) | 1994-08-19 | 2002-12-17 | Ballard Medical Products | Medical aspirating/ventilating closed system improvements and methods |
US5895424A (en) * | 1996-11-12 | 1999-04-20 | Mentor Corporation | Prosthesis having an alignment indicator and method of using same |
US6500158B1 (en) * | 1997-03-26 | 2002-12-31 | The Trustees Of Columbia University In The City Of New York | Method of inducing negative pressure in the urinary collecting system and apparatus therefor |
US6699216B2 (en) | 1997-03-26 | 2004-03-02 | The Trustees Of Columbia University In The City Of New York | Method of inducing negative pressure in the urinary collecting system and apparatus therefor |
US5921952A (en) * | 1997-08-14 | 1999-07-13 | Boston Scientific Corporation | Drainage catheter delivery system |
US6248100B1 (en) | 1997-08-14 | 2001-06-19 | Scimed Life Systems, Inc. | Drainage catheter delivery system |
US6264624B1 (en) | 1997-08-14 | 2001-07-24 | Boston Scientific Coporation | Drainage catheter delivery system |
US6562024B2 (en) | 1997-08-14 | 2003-05-13 | Scimed Life Systems, Inc. | Drainage catheter delivery system |
US6036682A (en) * | 1997-12-02 | 2000-03-14 | Scimed Life Systems, Inc. | Catheter having a plurality of integral radiopaque bands |
US20050049570A1 (en) * | 1998-03-06 | 2005-03-03 | Yem Chin | Apparatus and method for establishing access to the body |
US6796976B1 (en) | 1998-03-06 | 2004-09-28 | Scimed Life Systems, Inc. | Establishing access to the body |
US7678100B2 (en) | 1998-03-06 | 2010-03-16 | Boston Scientific Scimed, Inc. | Apparatus for establishing access to the body |
US9615909B2 (en) | 1998-09-25 | 2017-04-11 | C.R. Bard, Inc. | Removable embolus blood clot filter and filter delivery unit |
US9351821B2 (en) | 1998-09-25 | 2016-05-31 | C. R. Bard, Inc. | Removable embolus blood clot filter and filter delivery unit |
US8690906B2 (en) | 1998-09-25 | 2014-04-08 | C.R. Bard, Inc. | Removeable embolus blood clot filter and filter delivery unit |
US9204956B2 (en) | 2002-02-20 | 2015-12-08 | C. R. Bard, Inc. | IVC filter with translating hooks |
US11103339B2 (en) | 2004-08-04 | 2021-08-31 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US9144484B2 (en) | 2004-08-04 | 2015-09-29 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US20100174310A1 (en) * | 2004-08-04 | 2010-07-08 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US8628556B2 (en) | 2004-08-04 | 2014-01-14 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US8372109B2 (en) | 2004-08-04 | 2013-02-12 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US7967838B2 (en) | 2005-05-12 | 2011-06-28 | C. R. Bard, Inc. | Removable embolus blood clot filter |
US10729527B2 (en) | 2005-05-12 | 2020-08-04 | C.R. Bard, Inc. | Removable embolus blood clot filter |
US11730583B2 (en) | 2005-05-12 | 2023-08-22 | C.R. Band. Inc. | Tubular filter |
US11554006B2 (en) | 2005-05-12 | 2023-01-17 | C. R. Bard Inc. | Removable embolus blood clot filter |
US8574261B2 (en) | 2005-05-12 | 2013-11-05 | C. R. Bard, Inc. | Removable embolus blood clot filter |
US8613754B2 (en) | 2005-05-12 | 2013-12-24 | C. R. Bard, Inc. | Tubular filter |
US20100318115A1 (en) * | 2005-05-12 | 2010-12-16 | C.R. Bard, Inc. | Tubular filter |
US20070112373A1 (en) * | 2005-05-12 | 2007-05-17 | C.R. Bard Inc. | Removable embolus blood clot filter |
US10813738B2 (en) | 2005-05-12 | 2020-10-27 | C.R. Bard, Inc. | Tubular filter |
US9017367B2 (en) | 2005-05-12 | 2015-04-28 | C. R. Bard, Inc. | Tubular filter |
US9498318B2 (en) | 2005-05-12 | 2016-11-22 | C.R. Bard, Inc. | Removable embolus blood clot filter |
US8430903B2 (en) | 2005-08-09 | 2013-04-30 | C. R. Bard, Inc. | Embolus blood clot filter and delivery system |
US11517415B2 (en) | 2005-08-09 | 2022-12-06 | C.R. Bard, Inc. | Embolus blood clot filter and delivery system |
US10492898B2 (en) | 2005-08-09 | 2019-12-03 | C.R. Bard, Inc. | Embolus blood clot filter and delivery system |
US9387063B2 (en) | 2005-08-09 | 2016-07-12 | C. R. Bard, Inc. | Embolus blood clot filter and delivery system |
US9131999B2 (en) | 2005-11-18 | 2015-09-15 | C.R. Bard Inc. | Vena cava filter with filament |
US10842608B2 (en) | 2005-11-18 | 2020-11-24 | C.R. Bard, Inc. | Vena cava filter with filament |
US20100030253A1 (en) * | 2005-11-18 | 2010-02-04 | C.R. Brard, Inc. | Vena cava filter with filament |
US20100256669A1 (en) * | 2005-12-02 | 2010-10-07 | C.R. Bard, Inc. | Helical Vena Cava Filter |
US10188496B2 (en) | 2006-05-02 | 2019-01-29 | C. R. Bard, Inc. | Vena cava filter formed from a sheet |
US10980626B2 (en) | 2006-05-02 | 2021-04-20 | C. R. Bard, Inc. | Vena cava filter formed from a sheet |
US20090299404A1 (en) * | 2006-05-02 | 2009-12-03 | C.R. Bard, Inc. | Vena cava filter formed from a sheet |
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US9408733B2 (en) | 2009-12-30 | 2016-08-09 | Michael Devon Amos | Rotatable connection between a tubular member and an elongate wire of a catheter |
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