CA2405386A1 - Stent delivery means with balloon retraction means - Google Patents

Stent delivery means with balloon retraction means Download PDF

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Publication number
CA2405386A1
CA2405386A1 CA002405386A CA2405386A CA2405386A1 CA 2405386 A1 CA2405386 A1 CA 2405386A1 CA 002405386 A CA002405386 A CA 002405386A CA 2405386 A CA2405386 A CA 2405386A CA 2405386 A1 CA2405386 A1 CA 2405386A1
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CA
Canada
Prior art keywords
balloon
catheter
medical device
sheath
disposed
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
CA002405386A
Other languages
French (fr)
Other versions
CA2405386C (en
Inventor
Brian J. Brown
Anthony C. Vrba
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 CA2405386A1 publication Critical patent/CA2405386A1/en
Application granted granted Critical
Publication of CA2405386C publication Critical patent/CA2405386C/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
    • A61F2/95—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
    • 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
    • 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
    • A61M25/10—Balloon catheters
    • A61M25/1011—Multiple balloon catheters
    • 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
    • A61M25/10—Balloon catheters
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1081—Balloon catheters with special features or adapted for special applications having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
    • 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

Abstract

The present invention provides an improved medical device delivery catheter.
The medical device delivery system comprises a catheter having a medical device receiving portion adapted to receive a medical device near the distal end of the catheter and a medical device such as a stent concentrically arranged around the catheter within the medical device receiving portion. The medical device delivery system further comprises a movable medical balloon disposed about the medical device. In use, the balloon may be inflated to dilate a lesion, retracted to deploy the medical device and subsequently reinflated to seat the medical device.

Claims (27)

1. A medical device delivery catheter comprising:
an inner tube with a medical device receiving region at the distal end thereof; and a retractable balloon assembly surrounding the medical device receiving region.
2. The catheter of claim 1 further comprising an expandable medical device disposed about the medical device receiving region, the retractable balloon assembly surrounding the medical device.
3. The catheter of claim 1 wherein the retractable balloon assembly comprises:
a medical balloon in mechanical communication with a balloon retraction device; and an inflation lumen in fluid communication with the medical balloon.
4. The catheter of claim 3 wherein the balloon retraction device comprises:
an outer sheath, and an inner sheath, the proximal end of the balloon attached to the distal end of the outer sheath, and the distal end of the balloon attached to the distal end of the inner sheath.
5. The catheter of claim 4 wherein the inflation lumen extends between the inner sheath and the outer sheath.
6. The catheter of claim 3 further comprising a sheath, the sheath surrounding at least the medical device, the balloon disposed about the sheath.
7. The catheter of claim 6 wherein the inflation lumen is in fluid communication with the balloon, the inflation lumen extending proximally from the balloon and substantially between the sheath and the inner tube.
8. The catheter of claim 3 further comprising a sheath, the sheath having at least two portions, the at least two portions including an outer portion and an inner portion, the diameter of the outer portion exceeding the diameter of the inner portion, the inner portion slidingly disposed within the outer portion, the balloon disposed about the distal end of the sheath.
9. The catheter of claim 3 wherein the expandable medical device is selected from the group consisting of stents, stent-grafts, grafts and vena cava filters.
10. The catheter of claim 9 wherein the expandable medical device is self expanding.
11. The catheter of claim 4 wherein both the outer and the inner sheaths are movable relative to the inner tube, the sheaths interconnected so as to move in unison.
12. The catheter of claim 11 wherein a distal portion of the inner sheath is disposed between the balloon and the medical device.
13. The catheter of claim 4 wherein the inner sheath is movable relative to the inner tube; and the outer sheath is not movable relative to the inner tube.
14. The catheter of claim 13 wherein the balloon is made of a rollable material.
15. The catheter of claim 13 wherein the balloon is collapsible.
16. The catheter of claim 16 wherein the balloon is pleated.
17. The catheter of claim 4 wherein the outer sheath has a collapsible portion proximal to the balloon and the inner sheath has a pull collar attached thereto, the pull collar distal to the collapsible portion, the pull collar having a pull member extending proximally therefrom.
18. The catheter of claim 17 wherein the pull member is a wire.
19. A method comprising the steps of:
providing a medical device delivery catheter as in claim 8;
inserting the medical device delivery catheter into a bodily vessel;
advancing the medical device delivery catheter such that the balloon is positioned at a desired bodily location;
supplying an inflation fluid to the balloon to expand the balloon and dilate a desired portion of the vessel;
removing at least some of the inflation fluid from the balloon to at least partially deflate the balloon;
retracting the balloon so as to expose the medical device to expand;
deploying the medical device; and withdrawing the catheter from the bodily vessel.
20. The method of claim 19 further comprising the steps of:
positioning the balloon in the deployed medical device;
supplying an inflation fluid to the balloon to expand the balloon, the expanded balloon engaging the medical device and seating the medical device;

removing at least some of the inflation fluid from the balloon to at least partially deflate the balloon.
21. A medical device delivery catheter comprising:
an inner tube, the inner tube having a distal end region;
an expandable medical device disposed about the distal end region of the inner tube;
an inner sheath disposed about at least a portion of the inner tube;
an outer sheath disposed about at least a portion of the inner sheath the inner sheath movable relative to the inner tube;
a retractable medical balloon disposed about the medical device, the balloon retractable so as to expose the medical device, the balloon having a proximal end and a distal end, the proximal end of the medical balloon connected to a distal part of the outer sheath, and the distal end of the medical balloon connected to a distal part of the inner sheath, wherein the balloon is retracted by moving the inner sheath in a proximal direction relative to the inner tube.
22. The catheter of claim 21 wherein both the inner sheath and the outer sheath are interconnected such that they move in unison.
23. The catheter of claim 21 wherein the balloon is made of a rollable material.
24. The catheter of claim 21 wherein the medical device is selected from the group consisting of stents, stent-grafts, grafts and vena cava filters.
25. The catheter of claim 21 wherein the medical device supportingly engages the balloon.
26. A medical device delivery catheter having a proximal portion and a distal portion and a longitudinal axis extending along the length of the catheter, the catheter comprising:
a catheter shaft;
a sheath, the sheath and the catheter shaft disposed about the longitudinal axis of the catheter;
an inflatable, pleated balloon having a first end mounted to the distal portion of the catheter shaft and a second end mounted to the sheath; and an inflation lumen, the inflation lumen in fluid communication with the balloon wherein a portion of the balloon may be moved in a longitudinal direction relative to another portion of the balloon.
27. The medical device delivery catheter of claim 26 further comprising a stent, the balloon disposed about the stent.
CA002405386A 2000-04-12 2001-01-22 Stent delivery means with balloon retraction means Expired - Fee Related CA2405386C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/547,771 US6702843B1 (en) 2000-04-12 2000-04-12 Stent delivery means with balloon retraction means
US09/547,771 2000-04-12
PCT/US2001/002066 WO2001078627A1 (en) 2000-04-12 2001-01-22 Stent delivery catheter with retractable balloon

Publications (2)

Publication Number Publication Date
CA2405386A1 true CA2405386A1 (en) 2001-10-25
CA2405386C CA2405386C (en) 2009-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002405386A Expired - Fee Related CA2405386C (en) 2000-04-12 2001-01-22 Stent delivery means with balloon retraction means

Country Status (7)

Country Link
US (1) US6702843B1 (en)
EP (1) EP1272125B1 (en)
JP (1) JP4777581B2 (en)
AT (1) ATE387166T1 (en)
CA (1) CA2405386C (en)
DE (1) DE60132982T2 (en)
WO (1) WO2001078627A1 (en)

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DE60132982T2 (en) 2009-02-19
US6702843B1 (en) 2004-03-09
ATE387166T1 (en) 2008-03-15
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EP1272125B1 (en) 2008-02-27
EP1272125A1 (en) 2003-01-08

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