CA2436193A1 - Improved rolling membrane stent delivery system - Google Patents

Improved rolling membrane stent delivery system Download PDF

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Publication number
CA2436193A1
CA2436193A1 CA002436193A CA2436193A CA2436193A1 CA 2436193 A1 CA2436193 A1 CA 2436193A1 CA 002436193 A CA002436193 A CA 002436193A CA 2436193 A CA2436193 A CA 2436193A CA 2436193 A1 CA2436193 A1 CA 2436193A1
Authority
CA
Canada
Prior art keywords
medical device
delivery system
wall
sheath
device delivery
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.)
Granted
Application number
CA002436193A
Other languages
French (fr)
Other versions
CA2436193C (en
Inventor
Anthony C. Vrba
Lance A. Monroe
Scott R. Smith
David J. Sogard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boston Scientific Ltd Barbados
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2436193A1 publication Critical patent/CA2436193A1/en
Application granted granted Critical
Publication of CA2436193C publication Critical patent/CA2436193C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/0105—Open ended, i.e. legs gathered only at one side
    • 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
    • A61F2/01—Filters implantable into blood vessels
    • A61F2/011—Instruments for their placement or removal
    • 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
    • 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
    • A61F2/958—Inflatable balloons for placing stents or stent-grafts
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/005—Rosette-shaped, e.g. star-shaped
    • 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
    • A61M25/0119—Eversible catheters

Landscapes

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

Abstract

A medical device delivery system having a rolling retractable sheath covering a medical device mounting region on the system is disclosed. The rolling retractable sheath comprises an inner wall and an outer wall and may be formed of one or more materials, optionally porous. Optionally, a lubricant may be applied selectively to the interior and exterior walls of the stent.

Claims (17)

1. A medical device delivery system comprising:
an inner tube, having a distal region and a proximal region, the inner tube having a medical device mounting region at the distal region for mounting a medical device thereon;

an outer tube, at least partially disposed about the inner tube;

a rolling retractable sheath for retaining a medical device about the inner tube and for dilitation of a body vessel, the sheath having a proximal end and a distal end, the sheath disposed about the inner tube, the sheath having an inner wall attached to the inner tube proximal to the medical device mounting region and an outer wall, the inner wall extending distally and attached to the outer wall, the outer wall extending proximally and attached to the outer tube, the sheath defining a chamber, the chamber being in fluid communication with an inflation lumen, the sheath having an uninflated state and an inflated dilitation state.
2. The medical device delivery system of claim 1 wherein the outer tube further comprises a retraction device, the retraction device retaining the rolling retractable sheath in the delivery position when the rolling retractable sheath is in the inflated stated, the retraction device moving the outer wall in a proximal direction relative to the inner wall to expose the medical device mounting region, the retraction device operably connected to the outer wall of the rolling retractable sheath.
3. The medical delivery device of claim 2 wherein the retraction device further comprises a catheter having proximal and distal ends and a lumen therein for receiving the inner tube therein, the distal end of the inner tube extending beyond the distal end of the catheter, the outer wall of the rolling retractable sheath attached to the distal end of the catheter.
4. The medical device delivery system of claim 1 wherein the inner and outer walls are adhesively bonded together at an end of the rolling double walled member.
5. The medical device delivery system of claim 1 wherein the inner and outer walls are mechanically joined together at an end of the rolling double walled member.
6. The medical device delivery system of claim 1 wherein the inner wall of the rolling retractable sheath is formed of at least a first material and the outer wall is formed of at least a second material different from the first material.
7. The medical device delivery system of claim 1 wherein the inner wall has a lower compliance than the outer wall.
8. The medical device delivery system of claim 1 wherein the outer wall of the sheath is thinner than the inner wall of the sheath.
9. The medical device delivery system of claim 1 wherein the inner and outer walls of the sheath are obliquely disposed relative to each other.
10. The medical device delivery system of claim 1 further comprising a lubricant applied to at least a portion of one or more of the inner and outer walls so as to reduce friction between the inner and outer walls.
11. The medical device delivery system of claim 1 further comprising a medical device selected from the group consisting of stems, grafts and vena cava filters, the medical device mounted on the medical device mounting region of the inner tube.
12. The medical device delivery system of claim 1 wherein the medical device is a stent and the stent is self-expandable.
13. The medical device delivery system of claim 1 configured for use a in a mode selected from the group consisting of fixed-wire mode, over-the-wire mode and rapid-exchange mode.
14. A method of delivering a stent to a desired bodily location comprising the steps of:

providing a medical device delivery system as in claim 1;
providing a self expanding stent;
mounting the stent on the medical device mounting region of the medical device delivery system;

percutaneously inserting the medical device delivery system in a bodily lumen containing a bodily fluid, traversing the bodily lumen until the desired bodily location is reached;

inflating the chamber of the rolling retractable sheath with a fluid;

removing the fluid from the chamber through the inflation lumen;

retracting the rolling retractable sheath proximally so as to expose the stent to self-expand; and withdrawing the medical device delivery system from the bodily lumen.
15. The medical device delivery system of claim 2, the retraction device further comprising a pull wire.
16. The medical device delivery system of claim 2, the retraction device further comprising an outer sheath.
17. The medical device delivery system of claim 1 wherein the inner wall and the outer wall are integrally formed.
CA2436193A 2000-11-10 2001-11-09 Improved rolling membrane stent delivery system Expired - Fee Related CA2436193C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/711,687 US6544278B1 (en) 1998-11-06 2000-11-10 Rolling membrane stent delivery system
US09/711,687 2000-11-10
PCT/US2001/046725 WO2002038084A2 (en) 2000-11-10 2001-11-09 Improved rolling membrane stent delivery system

Publications (2)

Publication Number Publication Date
CA2436193A1 true CA2436193A1 (en) 2002-05-16
CA2436193C CA2436193C (en) 2010-02-23

Family

ID=24859102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2436193A Expired - Fee Related CA2436193C (en) 2000-11-10 2001-11-09 Improved rolling membrane stent delivery system

Country Status (9)

Country Link
US (4) US6544278B1 (en)
EP (1) EP1333778B1 (en)
JP (1) JP2004531289A (en)
AT (1) ATE391471T1 (en)
AU (1) AU2002230620A1 (en)
CA (1) CA2436193C (en)
DE (1) DE60133572T2 (en)
ES (1) ES2301572T3 (en)
WO (1) WO2002038084A2 (en)

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