US1060665A - Catheter. - Google Patents

Catheter. Download PDF

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Publication number
US1060665A
US1060665A US1910574515A US1060665A US 1060665 A US1060665 A US 1060665A US 1910574515 A US1910574515 A US 1910574515A US 1060665 A US1060665 A US 1060665A
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Prior art keywords
catheter
tube
stiffening member
passage
bent
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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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Inventor
Charles W Bell
Original Assignee
John S Harlow
Charles W Bell
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.)
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    • 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
    • A61M25/09Guide wires
    • 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
    • A61M25/09Guide wires
    • A61M2025/09058Basic structures of guide wires
    • A61M2025/09083Basic structures of guide wires having a coil around a core
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/9464Faucets and spouts

Description

C. W. BELL.

. CATHETER.

APPLIOATION FILED JULY 29, 1910.

Patented May 6, 1913.

M k g WW WH WN r FM. 4w W 4 1% M. w m M TTED STATES PATENT OFFICE.

CHARLES W. BELL, OF STRONG, MAINE, ASSIGNOR OF ONE-HALF TO JOHN S. HARLOW, OF DIXFIELD, MAINE.

CATHETER.

Specification of Letters Patent.

Patented May 6, 1913.

Application filed July 29, 1910. Serial No. 574,515.

To all whom it may concern:

Be it known that I, CHARLES W. BELL, a citizen of the United States, residing at Strong, in the county of Franklin and State of Maine, have invented a certain new and useful Improvement in Catheters, of which the following is a specification, reference being had therein to the accompanying drawlngs.

My invention has for its object an improvement in catheters; and is intended particularly to provide a catheter to be used particularly in prostatic cases where the passage in which the catheter is to be inserted is bent or curved to a smaller radius than is the case under normal conditions.

In the use of catheters as heretofore constructed, so far as is known to me, a stifiening member, if used at all, is composed either of spring metal having an elastic limit such that no permanent set can be given it, or else one composed of a soft metal having no elasticity. Furthermore, the stiffening member has been located within the lumen of the tube of the catheter and the catheter has been open at the end, so that injury has frequently resulted from the protrusion of the stiifening member through the end of the catheter.

In constructing my improved catheter, I embed in one wall of the tube a stiifening member, making the tube with a solid end in which the end of the stiffening member is embedded, and making the orifice of the catheter on the side just back of the solid tip or end, thereby preventing absolutely all possibility of the stiffening member becoming protruded. The stiitening member is made of some metal like tempered piano wire which is soft enough so that it can be given a permanent set or bend by the user but which when so set or bent will still have a certain amount of elasticity so that if then bent slightly it will tend to spring back to the curved form previously given it. This stifi'ening member being embedded on the wall of the catheter causes the flexible tube of the catheter to retain any curve which is given to it and yet to be slightly elastic or springy.

Before inserting the catheter it is bent to a predetermined curve which is preferably somewhat sharper than the curve of the passage in which the instrument is to be inserted. Thereafter, the catheter may be insorted through the straight part of the passage through the body without bending it enough to change the permanent shape to which it has been set. As the catheter is further inserted through the curved portion of the passage, the end of the catheter tends to press against the anterior wall of the passage rather than on the posterior wall as has heretofore been the case where a catheter having a straight stiffening member is used. This is of especial importance in prostatic cases in which the passage is caused to be curved more sharply than under ordinary conditions.

My improved catheter is no more expensive to make than those heretofore employed and has many important advantages.

The invention will be fully understood from the following description taken in connection with the accompanying drawings, and the novel features will be pointed out and clearly defined in the claim at the close of the specification.

In the drawings,-Figure 1 is a side elevation on a somewhat enlarged scale of a catheter embodying my invention, a portion thereof being in section for convenience of illustration. Fig. 2 is a transverse section on line 2-2 Fig. 1 (also on an enlarged scale). Fig. 3 is a longitudinal section (also on an enlarged scale) of the point be ing taken on line 3-3 Fig. 1. Fig. 4 is a side elevation (also on an enlarged scale) of the catheter bent into a curve for use and indicating in dotted lines a second position which it may assume. Fig. 5 is a transverse section (also on an enlarged scale) of a modified form, in which the stiffening member is contained within a rib which projects into the lumen of the tube.

Referring to the drawings :--At A is shown the tube of the catheter. This may be of rubber of proper flexibility, or of textile material such as lisle thread and coated to give it a smooth surface, or it may be of an other suitable material. The walls of the tube are preferably of uniform or substantiallyv uniform thickness, which is great enough to permit the stiffening member B to be contained therein. The tube of the catheter is closed at one end and slightly rounded or pointed for convenience of insertion. The orifice C is located at a short distance back from the point and on the side of the tube. The stiffening member eX- tends the entire length of the tube and preferably ends in a slight enlargement which is embedded in the solid point of the tube. This prevents absolutely any possibility of the stiffening member making its way through the material of which the tube is made and protruding therefrom, which is likely to cause injury to the walls of the passage in which the catheter is employed. The stiffening member is made from a fine wire from which the temper has been nearly drawn so that while retaining some elasticity it may be bent readily in the fingers to the desired shape and when so bent will retain the desired curve while at the same time being somewhat elastic.

In Fig. 4; I have shown the catheter embodying my invention bent to a shape in which it may be employed and have indicated in dotted lines, at E, the position which it assumes when in place in the passage, the curve being then not quite so sharp. By bending the catheter to the sharper curve as shown in full lines, the pressure of the point of the catheter is exerted on the anterior instead of on the posterior Wall of the passage, and as the anterior wall of the passage is convex instead of concave the catheter may be much more easily pushed into place.

In Fig. 5 is shown a section of a catheter in which the stiffening member is embedded in a rib F which protrudes into the lumen of the tube.

WVhile I have shown my improved catheter as being constructed with a single stiffening member, it is obvious that more than one may be employed if desired. l/Vhen one stiffening member is employed, it 10- cates itself on the inside of the curve when the catheter is bent and assists in causing the catheter to bend as the catheter is inserted.

Vhat I claim is z- The improved catheter comprising a tube of flexible material having a solid end and an orifice in the side near said end, and having in thewall thereof a substantially straight longitudinal rib, said ing within said solid end and being of material capable of taking a given set and thereafter adhering to thesame.

In testimony whereof I afiix my signature, in presence of two Witnesses.

CHARLES WV. BELL.

Witnesses:

Jnssm E. MORRISON, ALICE H. MORRISON.

M g Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C.

rib terminat-

US1060665A 1910-07-29 1910-07-29 Catheter. Expired - Lifetime US1060665A (en)

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Cited By (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612998A (en) * 1947-03-12 1952-10-07 Talbot A Smith Apparatus for removal of oil tank sludge and sediment
US2922613A (en) * 1951-06-01 1960-01-26 Cutter Lab Pinch valve
US3169528A (en) * 1963-05-24 1965-02-16 Iii Francis S Knox Coronary sinus sucker
US3437088A (en) * 1966-12-01 1969-04-08 Leonard J Bielinski Apparatus for measuring motility of body organs
US3480003A (en) * 1967-02-03 1969-11-25 Battelle Development Corp Apparatus for measuring esophageal motility
US3937224A (en) * 1974-04-11 1976-02-10 Uecker Ronald L Colostomy catheter
US4307723A (en) * 1978-04-07 1981-12-29 Medical Engineering Corporation Externally grooved ureteral stent
US4573473A (en) * 1984-04-13 1986-03-04 Cordis Corporation Cardiac mapping probe
US4596564A (en) * 1981-01-29 1986-06-24 Pmt, Inc. Medical appliance
US4651751A (en) * 1982-10-14 1987-03-24 American Hospital Supply Corporation Guiding catheter and method of use
US4660555A (en) * 1984-09-21 1987-04-28 Payton Hugh W Oxygen delivery and administration system
EP0254701A1 (en) 1986-07-22 1988-01-27 Medtronic Versaflex, Inc. Steerable catheter
US4739753A (en) * 1987-08-26 1988-04-26 Brehm, Inc. Surgical drape support and oxygen delivery system
US4747827A (en) * 1986-09-25 1988-05-31 Micek Frank C Nasogastric intubation process
US4762129A (en) * 1984-11-23 1988-08-09 Tassilo Bonzel Dilatation catheter
US4776844A (en) * 1986-05-02 1988-10-11 Olympus Optical Co., Ltd. Medical tube
US4787894A (en) * 1987-10-26 1988-11-29 Turnbull Christopher J Meconium aspiration device
US4820262A (en) * 1985-12-12 1989-04-11 Medical Engineering Corporation Ureteral stent
US4822345A (en) * 1986-08-14 1989-04-18 Danforth John W Controllable flexibility catheter
US4834709A (en) * 1986-03-26 1989-05-30 Sherwood Medical Company Preformable catheter
WO1990000878A1 (en) * 1988-07-27 1990-02-08 Ep Technologies, Inc. Apparatus and method for recording monophasic potentials
US4909787A (en) * 1986-08-14 1990-03-20 Danforth John W Controllable flexibility catheter with eccentric stiffener
US4917104A (en) * 1988-06-10 1990-04-17 Telectronics Pacing Systems, Inc. Electrically insulated "J" stiffener wire
US4944740A (en) * 1984-09-18 1990-07-31 Medtronic Versaflex, Inc. Outer exchange catheter system
US5047018A (en) * 1989-08-14 1991-09-10 Minnesota Mining And Manufacturing Company Catheter and stylet assembly having dual position stylet
US5108366A (en) * 1990-09-28 1992-04-28 Ovamed Corporation Delivery catheter
US5109830A (en) * 1990-04-10 1992-05-05 Candela Laser Corporation Apparatus for navigation of body cavities
US5114402A (en) * 1983-10-31 1992-05-19 Catheter Research, Inc. Spring-biased tip assembly
US5125895A (en) * 1986-07-22 1992-06-30 Medtronic Versaflex, Inc. Steerable catheter
US5163912A (en) * 1989-08-14 1992-11-17 Minnesota Mining And Manufacturing Company Catheter and stylet assembly having dual position stylet
US5205822A (en) * 1991-06-10 1993-04-27 Cordis Corporation Replaceable dilatation catheter
US5232445A (en) * 1984-11-23 1993-08-03 Tassilo Bonzel Dilatation catheter
US5273527A (en) * 1992-05-12 1993-12-28 Ovamed Corporation Delivery catheter
US5290232A (en) * 1991-06-10 1994-03-01 Cordis Corporation Replaceable dilatation catheter
US5295493A (en) * 1992-03-19 1994-03-22 Interventional Technologies, Inc. Anatomical guide wire
US5348545A (en) * 1990-08-21 1994-09-20 Advanced Cardiovascular Systems, Inc. Guiding catheter for the right coronary artery
US5423745A (en) * 1988-04-28 1995-06-13 Research Medical, Inc. Irregular surface balloon catheters for body passageways and methods of use
US5423878A (en) * 1984-03-06 1995-06-13 Ep Technologies, Inc. Catheter and associated system for pacing the heart
US5690620A (en) * 1996-05-14 1997-11-25 Knott; Michael Mcfarland Anatomically conforming nasogastric tube with normally-curved tip and method for using same
US5690642A (en) * 1996-01-18 1997-11-25 Cook Incorporated Rapid exchange stent delivery balloon catheter
US6068476A (en) * 1999-06-21 2000-05-30 Point; Catherine L. Saliva ejector with attached cover-slip
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
EP1386632A1 (en) 2002-07-31 2004-02-04 Cryocor, Inc. Wire reinforced articulation segment
US20040034365A1 (en) * 2002-08-16 2004-02-19 Lentz David J. Catheter having articulation system
US20040097788A1 (en) * 2002-05-30 2004-05-20 Mourlas Nicholas J. Apparatus and methods for coronary sinus access
US20050119644A1 (en) * 2003-12-01 2005-06-02 Koerner Richard J. Articulating catheter tip with wedge-cuts
US6926711B2 (en) 2003-07-30 2005-08-09 Cryocor, Inc. Articulating catheter for cryoablation with reduced diameter section
US20050177132A1 (en) * 2004-02-09 2005-08-11 Lentz David J. Catheter articulation segment with alternating cuts
US20050177131A1 (en) * 2004-02-09 2005-08-11 Lentz David J. Catheter articulation segment with alternating cuts
US20050197623A1 (en) * 2004-02-17 2005-09-08 Leeflang Stephen A. Variable steerable catheters and methods for using them
US20050228452A1 (en) * 2004-02-11 2005-10-13 Mourlas Nicholas J Steerable catheters and methods for using them
US20050283179A1 (en) * 2004-06-17 2005-12-22 Lentz David J Introducer sheath
US20050288656A1 (en) * 2004-06-24 2005-12-29 Koerner Richard J System for bi-directionally controlling the cryo-tip of a cryoablation catheter
US20050288626A1 (en) * 2004-06-24 2005-12-29 Koerner Richard J Active system for deflecting a distal portion of a catheter into a hoop configuration
US20060047245A1 (en) * 2004-08-24 2006-03-02 Ruchir Sehra Catheter control unit
US20060217755A1 (en) * 2004-10-04 2006-09-28 Eversull Christian S Expandable guide sheath with steerable backbone and methods for making and using them
US20070083217A1 (en) * 2002-05-30 2007-04-12 Eversull Christian S Apparatus and Methods for Placing Leads Using Direct Visualization
US7229429B2 (en) 1987-12-22 2007-06-12 Vas-Cath Inc. Multiple lumen catheter
US7993350B2 (en) 2004-10-04 2011-08-09 Medtronic, Inc. Shapeable or steerable guide sheaths and methods for making and using them
US9445784B2 (en) 2005-09-22 2016-09-20 Boston Scientific Scimed, Inc Intravascular ultrasound catheter
US9468364B2 (en) 2008-11-14 2016-10-18 Intuitive Surgical Operations, Inc. Intravascular catheter with hood and image processing systems

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612998A (en) * 1947-03-12 1952-10-07 Talbot A Smith Apparatus for removal of oil tank sludge and sediment
US2922613A (en) * 1951-06-01 1960-01-26 Cutter Lab Pinch valve
US3169528A (en) * 1963-05-24 1965-02-16 Iii Francis S Knox Coronary sinus sucker
US3437088A (en) * 1966-12-01 1969-04-08 Leonard J Bielinski Apparatus for measuring motility of body organs
US3480003A (en) * 1967-02-03 1969-11-25 Battelle Development Corp Apparatus for measuring esophageal motility
US3937224A (en) * 1974-04-11 1976-02-10 Uecker Ronald L Colostomy catheter
US4307723A (en) * 1978-04-07 1981-12-29 Medical Engineering Corporation Externally grooved ureteral stent
US4596564A (en) * 1981-01-29 1986-06-24 Pmt, Inc. Medical appliance
US4651751A (en) * 1982-10-14 1987-03-24 American Hospital Supply Corporation Guiding catheter and method of use
US5114402A (en) * 1983-10-31 1992-05-19 Catheter Research, Inc. Spring-biased tip assembly
US5423878A (en) * 1984-03-06 1995-06-13 Ep Technologies, Inc. Catheter and associated system for pacing the heart
US4573473A (en) * 1984-04-13 1986-03-04 Cordis Corporation Cardiac mapping probe
US4944740A (en) * 1984-09-18 1990-07-31 Medtronic Versaflex, Inc. Outer exchange catheter system
US4660555A (en) * 1984-09-21 1987-04-28 Payton Hugh W Oxygen delivery and administration system
US5232445A (en) * 1984-11-23 1993-08-03 Tassilo Bonzel Dilatation catheter
US4762129A (en) * 1984-11-23 1988-08-09 Tassilo Bonzel Dilatation catheter
US4820262A (en) * 1985-12-12 1989-04-11 Medical Engineering Corporation Ureteral stent
US4834709A (en) * 1986-03-26 1989-05-30 Sherwood Medical Company Preformable catheter
US4776844A (en) * 1986-05-02 1988-10-11 Olympus Optical Co., Ltd. Medical tube
US4723936A (en) * 1986-07-22 1988-02-09 Versaflex Delivery Systems Inc. Steerable catheter
EP0254701A1 (en) 1986-07-22 1988-01-27 Medtronic Versaflex, Inc. Steerable catheter
US5125895A (en) * 1986-07-22 1992-06-30 Medtronic Versaflex, Inc. Steerable catheter
US4909787A (en) * 1986-08-14 1990-03-20 Danforth John W Controllable flexibility catheter with eccentric stiffener
US4822345A (en) * 1986-08-14 1989-04-18 Danforth John W Controllable flexibility catheter
US4747827A (en) * 1986-09-25 1988-05-31 Micek Frank C Nasogastric intubation process
US4739753A (en) * 1987-08-26 1988-04-26 Brehm, Inc. Surgical drape support and oxygen delivery system
US4787894A (en) * 1987-10-26 1988-11-29 Turnbull Christopher J Meconium aspiration device
US7229429B2 (en) 1987-12-22 2007-06-12 Vas-Cath Inc. Multiple lumen catheter
US5423745A (en) * 1988-04-28 1995-06-13 Research Medical, Inc. Irregular surface balloon catheters for body passageways and methods of use
US4917104A (en) * 1988-06-10 1990-04-17 Telectronics Pacing Systems, Inc. Electrically insulated "J" stiffener wire
WO1990000878A1 (en) * 1988-07-27 1990-02-08 Ep Technologies, Inc. Apparatus and method for recording monophasic potentials
US5163912A (en) * 1989-08-14 1992-11-17 Minnesota Mining And Manufacturing Company Catheter and stylet assembly having dual position stylet
US5047018A (en) * 1989-08-14 1991-09-10 Minnesota Mining And Manufacturing Company Catheter and stylet assembly having dual position stylet
US5109830A (en) * 1990-04-10 1992-05-05 Candela Laser Corporation Apparatus for navigation of body cavities
US5348545A (en) * 1990-08-21 1994-09-20 Advanced Cardiovascular Systems, Inc. Guiding catheter for the right coronary artery
US5108366A (en) * 1990-09-28 1992-04-28 Ovamed Corporation Delivery catheter
US5290232A (en) * 1991-06-10 1994-03-01 Cordis Corporation Replaceable dilatation catheter
US5205822A (en) * 1991-06-10 1993-04-27 Cordis Corporation Replaceable dilatation catheter
US5295493A (en) * 1992-03-19 1994-03-22 Interventional Technologies, Inc. Anatomical guide wire
US5273527A (en) * 1992-05-12 1993-12-28 Ovamed Corporation Delivery catheter
US5690642A (en) * 1996-01-18 1997-11-25 Cook Incorporated Rapid exchange stent delivery balloon catheter
US5690620A (en) * 1996-05-14 1997-11-25 Knott; Michael Mcfarland Anatomically conforming nasogastric tube with normally-curved tip and method for using same
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
US6068476A (en) * 1999-06-21 2000-05-30 Point; Catherine L. Saliva ejector with attached cover-slip
US20060084839A1 (en) * 2002-05-30 2006-04-20 Mourlas Nicholas J Apparatus and methods for coronary sinus access
US8016748B2 (en) 2002-05-30 2011-09-13 The Board Of Trustees Of The Leland Stanford Jr. University Apparatus and methods for coronary sinus access
US20040097788A1 (en) * 2002-05-30 2004-05-20 Mourlas Nicholas J. Apparatus and methods for coronary sinus access
US6979290B2 (en) 2002-05-30 2005-12-27 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and methods for coronary sinus access
US8439824B2 (en) 2002-05-30 2013-05-14 The Board of Directors of the Leland Stanford, Jr. University Apparatus and methods for coronary sinus access
US8956280B2 (en) 2002-05-30 2015-02-17 Intuitive Surgical Operations, Inc. Apparatus and methods for placing leads using direct visualization
US20070015964A1 (en) * 2002-05-30 2007-01-18 Eversull Christian S Apparatus and Methods for Coronary Sinus Access
US20070083217A1 (en) * 2002-05-30 2007-04-12 Eversull Christian S Apparatus and Methods for Placing Leads Using Direct Visualization
US7004937B2 (en) 2002-07-31 2006-02-28 Cryocor, Inc. Wire reinforced articulation segment
EP1386632A1 (en) 2002-07-31 2004-02-04 Cryocor, Inc. Wire reinforced articulation segment
US20040024413A1 (en) * 2002-07-31 2004-02-05 Lentz David J. Wire reinforced articulation segment
US20040034365A1 (en) * 2002-08-16 2004-02-19 Lentz David J. Catheter having articulation system
US6926711B2 (en) 2003-07-30 2005-08-09 Cryocor, Inc. Articulating catheter for cryoablation with reduced diameter section
US20050119644A1 (en) * 2003-12-01 2005-06-02 Koerner Richard J. Articulating catheter tip with wedge-cuts
US20050177131A1 (en) * 2004-02-09 2005-08-11 Lentz David J. Catheter articulation segment with alternating cuts
US20100100073A1 (en) * 2004-02-09 2010-04-22 Cryocor, Inc. Catheter articulation segment with alternating cuts
US8092444B2 (en) 2004-02-09 2012-01-10 Boston Scientific Scimed, Inc. Catheter articulation segment with alternating cuts
US20050177132A1 (en) * 2004-02-09 2005-08-11 Lentz David J. Catheter articulation segment with alternating cuts
US7637903B2 (en) 2004-02-09 2009-12-29 Cryocor, Inc. Catheter articulation segment with alternating cuts
US20050228452A1 (en) * 2004-02-11 2005-10-13 Mourlas Nicholas J Steerable catheters and methods for using them
US20050197623A1 (en) * 2004-02-17 2005-09-08 Leeflang Stephen A. Variable steerable catheters and methods for using them
US20050283179A1 (en) * 2004-06-17 2005-12-22 Lentz David J Introducer sheath
US7285108B2 (en) 2004-06-24 2007-10-23 Cryocor, Inc. Active system for deflecting a distal portion of a catheter into a hoop configuration
US7374553B2 (en) 2004-06-24 2008-05-20 Cryocor, Inc. System for bi-directionally controlling the cryo-tip of a cryoablation catheter
US20050288656A1 (en) * 2004-06-24 2005-12-29 Koerner Richard J System for bi-directionally controlling the cryo-tip of a cryoablation catheter
US20050288626A1 (en) * 2004-06-24 2005-12-29 Koerner Richard J Active system for deflecting a distal portion of a catheter into a hoop configuration
US20060047245A1 (en) * 2004-08-24 2006-03-02 Ruchir Sehra Catheter control unit
US7875049B2 (en) 2004-10-04 2011-01-25 Medtronic, Inc. Expandable guide sheath with steerable backbone and methods for making and using them
US7993350B2 (en) 2004-10-04 2011-08-09 Medtronic, Inc. Shapeable or steerable guide sheaths and methods for making and using them
US20060217755A1 (en) * 2004-10-04 2006-09-28 Eversull Christian S Expandable guide sheath with steerable backbone and methods for making and using them
US9445784B2 (en) 2005-09-22 2016-09-20 Boston Scientific Scimed, Inc Intravascular ultrasound catheter
US9468364B2 (en) 2008-11-14 2016-10-18 Intuitive Surgical Operations, Inc. Intravascular catheter with hood and image processing systems

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