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WO1999049790A1 - Greffon a frottement reduit et catheter pour deploiement de stent ou greffon - Google Patents

Greffon a frottement reduit et catheter pour deploiement de stent ou greffon Download PDF

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Publication number
WO1999049790A1
WO1999049790A1 PCT/US1999/007125 US9907125W WO9949790A1 WO 1999049790 A1 WO1999049790 A1 WO 1999049790A1 US 9907125 W US9907125 W US 9907125W WO 9949790 A1 WO9949790 A1 WO 9949790A1
Authority
WO
WIPO (PCT)
Prior art keywords
graft
catheter
stent
catheter body
deployable
Prior art date
Application number
PCT/US1999/007125
Other languages
English (en)
Inventor
Boris Leschinsky
Frederick Ahari
Original Assignee
Datascope Investment Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datascope Investment Corp. filed Critical Datascope Investment Corp.
Priority to AU34598/99A priority Critical patent/AU3459899A/en
Publication of WO1999049790A1 publication Critical patent/WO1999049790A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/08—Materials for coatings
    • A61L29/085—Macromolecular materials

Definitions

  • the invention relates to a graft and a stent/graft deployment catheter, particularly for repairing defects in arteries and other lumens within the body. More particularly, the invention relates to a reduced friction stent/graft deployment catheter for delivering a reduced friction graft in si tu for repairing defective body lumens, and particularly abdominal aortic aneurysms .
  • AAA abdominal aortic aneurysm
  • the AAA ordinarily occurs in the portion of the aorta below the kidneys. When left untreated, the aneurysm will eventually cause the sac to rupture with ensuing fatal hemorrhaging in a very short time.
  • the repair of abdominal aortic aneurysms has typically required major abdominal surgery in which the diseased and aneurysmal segment of the aorta is bridged with a prosthetic device, such as a synthetic graft .
  • the total cross sectional area of a traditional expandable stent/graft in its compressed deployment state is generally designed 10% to 30% less than the area of the corresponding delivery sheath in order to limit friction between the graft and the delivery sheath and to ensure that the stent/graft is not damaged upon deployment. Therefore, it is desired to reduce the friction between the graft and the delivery sheath so as to allow for the use of a reduced diameter introducer sheath and deployment catheter.
  • the invention is a low friction stent/graft deployment catheter comprising a low friction graft having an outer coating of a biocompatible lubricous material, such as Dow Coming's medical silicone 360 (360 is a Dow Corning product identifier) , and a delivery sheath having an inner coating of a biocompatible lubricous material, such as Dow Coming's MDX4-4159 (MDX4-4159 is a Dow Corning product identifier) .
  • a biocompatible lubricous material such as Dow Coming's medical silicone 360 (360 is a Dow Corning product identifier)
  • a delivery sheath having an inner coating of a biocompatible lubricous material, such as Dow Coming's MDX4-4159 (MDX4-4159 is a Dow Corning product identifier) .
  • FIG 1 is longitudinal cross section of a distal portion of a prior art stent/graft deployment catheter.
  • FIG 2 is longitudinal cross section of distal portion of an improved low friction stent/graft deployment catheter.
  • FIG 1 illustrates a longitudinal cross section of a coaxial prior art stent/graft deployment catheter.
  • Said catheter is comprised of a catheter body 10, a tip 50, an inner tube 40, a stent/graft 30, and a plunger 20, all of which are co-axial and have proximal and distal ends. Only a distal portion of the deployment catheter is shown for clarity.
  • the catheter body 10 has an inner surface 70 and is slidingly disposed about the inner tube 40.
  • the plunger 20 is slidingly disposed about the inner tube 40 and is slidingly disposed within the catheter body 10. The distal end of the inner tube 40 is attached to the tip 50.
  • the stent/graft 30 is slidingly disposed about the inner tube 40 and within the catheter body 10 and is between the proximal end of the tip 50 and the distal end of the plunger 20.
  • the stent/graft 30 has an outer surface 60 and a lumen 52 extending from its proximal end to its distal end.
  • the stent/graft lumen 52 is occupied by a distal portion 41 of the inner tube 40.
  • the stent/graft deployment catheter is inserted percutaneously or via a surgical cut-down method into a blood vessel.
  • the plunger 20 is held in place and the catheter body 10 is pulled away from the tip 50 exposing the entire stent/graft 30 to patient's blood.
  • the stent/graft 30 expands such that the diameter of the stent/graft lumen 52 is larger than the diameter of the tip
  • the expanded stent/graft 30 becomes fixed in place in the blood vessel and thus bridges the aneurysm.
  • the inner tube 40 is then pulled away from the stent/graft 30 such that the tip 50 passes through the lumen 52 of the stent/graft 30.
  • the deployment catheter is removed from the patient. As discussed above, friction between the catheter body 10 and the stent/graft 30 may require the surgeon to apply a great deal of longitudinal force to the plunger 20, to force the stent/graft out of the deployment catheter, which may damage the stent/graft 30.
  • FIG 2 illustrates a longitudinal cross section of an improved stent/graft deployment catheter. Only a distal portion of the deployment catheter is shown for clarity.
  • the improved stent/graft deployment catheter is physically identical to the prior art catheter except for the presence of two lubricous coatings.
  • a first coating 80 of a biocompatible lubricous material such as Dow Coming's MDX4-4159 (MDX4-4159 is a Dow Corning product identifier)
  • MDX4-4159 is a Dow Corning product identifier
  • a second coating 90 of a biocompatible lubricous material such as Dow Coming's medical silicone 360 (360 is a Dow Coming product identifier)
  • 360 is a Dow Coming product identifier
  • the stent/graft 30 is radially compressed to its maximum extent without fear that an increased stent/graft restorative force will increase friction between the inner surface 70 of the catheter body 10 and the outer surface 60 of the stent/graft 30. Accordingly, the entire deployment catheter can be made smaller than the prior art deployment catheter. Note that the use of a single coating, either on the stent/graft 30 or on the catheter body 10, is contemplated.
  • the inner surface 70 of the catheter body 10 is coated with MDX4-4159.
  • the stent/graft 30 is lubricated with Dow Coming's medical silicone 360. The stent/graft 30 is then compressed radially and is disposed about the distal portion 41 of the inner tube

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Cardiology (AREA)
  • Epidemiology (AREA)
  • Materials For Medical Uses (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne un cathéter pour déploiement de stent ou greffon (30) à frottement réduit. Ce cathéter comporte notamment un greffon à frottement réduit pourvu d'un revêtement extérieur (90) en matériau autolubrifiant tel que la silicone médicale de Dow Corning. Le cathéter comporte également une gaine de mise en place (42) pourvue d'un revêtement intérieur (80) en un matériau autolubrifiant biocompatible tel que le MDX4-4159 de Dow Corning.
PCT/US1999/007125 1998-03-30 1999-03-30 Greffon a frottement reduit et catheter pour deploiement de stent ou greffon WO1999049790A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34598/99A AU3459899A (en) 1998-03-30 1999-03-30 Reduced friction graft and stent/graft deployment catheter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5014898A 1998-03-30 1998-03-30
US09/050,148 1998-03-30

Publications (1)

Publication Number Publication Date
WO1999049790A1 true WO1999049790A1 (fr) 1999-10-07

Family

ID=21963614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/007125 WO1999049790A1 (fr) 1998-03-30 1999-03-30 Greffon a frottement reduit et catheter pour deploiement de stent ou greffon

Country Status (2)

Country Link
AU (1) AU3459899A (fr)
WO (1) WO1999049790A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6302892B1 (en) 1999-08-04 2001-10-16 Percardia, Inc. Blood flow conduit delivery system and method of use
DE10060443A1 (de) * 2000-11-29 2002-06-06 Biotronik Mess & Therapieg Stent aus menschlichem oder tierischem Gewebe
DE10213368A1 (de) * 2002-03-21 2003-10-02 Biotronik Mess & Therapieg Oberflächenstruktur für eine Kathetergleitfläche
US6854467B2 (en) 2000-05-04 2005-02-15 Percardia, Inc. Methods and devices for delivering a ventricular stent
US6945949B2 (en) 1998-01-30 2005-09-20 Percardia, Inc. Left ventricular conduits to coronary arteries and methods for coronary bypass
US6964652B2 (en) 1999-08-04 2005-11-15 Percardia, Inc. Left ventricular conduits and methods for delivery
WO2006047676A1 (fr) * 2004-10-27 2006-05-04 Medtronic Vascular, Inc. Manchon anti-interference d'endoprotheses a cliquet avec catheter-guide
US9085054B2 (en) 2012-12-21 2015-07-21 Cook Medical Technologies Llc Method of texturing an inner surface of a self-expanding implant delivery system outer sheath

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740207A (en) * 1986-09-10 1988-04-26 Kreamer Jeffry W Intralumenal graft
US5690644A (en) * 1992-12-30 1997-11-25 Schneider (Usa) Inc. Apparatus for deploying body implantable stent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4740207A (en) * 1986-09-10 1988-04-26 Kreamer Jeffry W Intralumenal graft
US5690644A (en) * 1992-12-30 1997-11-25 Schneider (Usa) Inc. Apparatus for deploying body implantable stent

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6945949B2 (en) 1998-01-30 2005-09-20 Percardia, Inc. Left ventricular conduits to coronary arteries and methods for coronary bypass
US6949080B2 (en) 1998-01-30 2005-09-27 Percardia, Inc. Left ventricular conduits to coronary arteries and methods for coronary bypass
US7294115B1 (en) 1998-01-30 2007-11-13 Percardia, Inc. Methods of providing direct blood flow between a heart chamber and a coronary vessel
US6302892B1 (en) 1999-08-04 2001-10-16 Percardia, Inc. Blood flow conduit delivery system and method of use
US6964652B2 (en) 1999-08-04 2005-11-15 Percardia, Inc. Left ventricular conduits and methods for delivery
US6854467B2 (en) 2000-05-04 2005-02-15 Percardia, Inc. Methods and devices for delivering a ventricular stent
DE10060443A1 (de) * 2000-11-29 2002-06-06 Biotronik Mess & Therapieg Stent aus menschlichem oder tierischem Gewebe
DE10213368A1 (de) * 2002-03-21 2003-10-02 Biotronik Mess & Therapieg Oberflächenstruktur für eine Kathetergleitfläche
US7722545B2 (en) 2002-03-21 2010-05-25 Biotronik Mess- Und Therapiegeraete Gmbh & Co. Surface structure for a catheter sliding surface
WO2006047676A1 (fr) * 2004-10-27 2006-05-04 Medtronic Vascular, Inc. Manchon anti-interference d'endoprotheses a cliquet avec catheter-guide
US9085054B2 (en) 2012-12-21 2015-07-21 Cook Medical Technologies Llc Method of texturing an inner surface of a self-expanding implant delivery system outer sheath

Also Published As

Publication number Publication date
AU3459899A (en) 1999-10-18

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