CA2430806A1 - Catheter for controlled stent delivery - Google Patents

Catheter for controlled stent delivery Download PDF

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Publication number
CA2430806A1
CA2430806A1 CA002430806A CA2430806A CA2430806A1 CA 2430806 A1 CA2430806 A1 CA 2430806A1 CA 002430806 A CA002430806 A CA 002430806A CA 2430806 A CA2430806 A CA 2430806A CA 2430806 A1 CA2430806 A1 CA 2430806A1
Authority
CA
Canada
Prior art keywords
end portion
stent
diameter
waist
middle portion
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
CA002430806A
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French (fr)
Other versions
CA2430806C (en
Inventor
Lixiao Wang
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 Bermuda
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 CA2430806A1 publication Critical patent/CA2430806A1/en
Application granted granted Critical
Publication of CA2430806C publication Critical patent/CA2430806C/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
    • 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
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • 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
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • 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
    • A61F2002/9583—Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0039—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in diameter
    • 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
    • A61M2025/1059—Balloon catheters with special features or adapted for special applications having different inflatable sections mainly depending on the response to the inflation pressure, e.g. due to different material properties

Abstract

A catherer having a catherer shaft and medical balloon mounted thereon. The medical balloon having a non-inflated state and being inflatable to an inflated state, The medical balloon having a stent mounting region, with a stent being disposed about at least a portion of the stent mounting region. The stent mounting region having a middle portion, a first end portion adjacent to the middle portion and second end portion adjacent to the middle portion. The middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter. In the non-inflated state the middle portion diameter being different from the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter bein g substantially the same as the first end portion diameter and the second end portion diameter.

Claims (21)

1. A stent delivery system comprising:
a catheter, the catheter having a catheter shaft;
a medical balloon mounted on the catheter shaft, the medical balloon having a non-inflated state and being inflatable to an inflated state, the medical balloon having a stent mounting region, and a stent disposed about at least a portion of the stent mounting region, the stent mounting region having a middle portion, a first end portion adjacent to the middle portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being greater than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter.
2. The stent delivery system of claim 1 whereby, when the medical balloon is expanded the middle portion pushes against the stent before the first end portion and before the second end portion.
3. The stent delivery system of claim 1 wherein when the balloon is in the non-inflated state the middle portion diameter is between about 0.1 - 0.25 mm greater than the first end portion diameter and the second end portion diameter.
4. The stent delivery system of claim 1, the medical balloon further comprising:
a first cone, the first cone being immediately adjacent to the first end portion, the first cone having a first waist, the first waist having a first waist diameter, the first waist engaged to a first portion of the catheter shaft, the first end portion diameter being greater than the first waist diameter; and a second cone, the second cone being immediately adjacent to the second end portion, the second cone having a second waist, the second waist having a second waist diameter, the second waist engaged to a second portion of the catheter shaft, the second end portion diameter being greater than the send waist diameter.
5. The stent delivery system of claim 1 further comprising at least one stent retaining sleeve, the at least one stent retaining sleeve having a stent retaining portion disposed about one end of the stent and a catheter engagement portion engaged to a portion of the catheter shaft adjacent to the medical balloon.
6. The stent delivery system of claim 1, the stent comprising an unexpanded state and an expanded state, the stent further comprising a stent center, a first stent end and a second stent end.
7. The stent delivery system of claim 6 wherein when the balloon is expanded from the non-inflated state to the inflated state the stent is expanded from the unexpanded state to the expanded state, such that the stent center is expanded before the first stent end and before the second stent end.
8. The stent delivery system of claim 6 wherein the at least one stent retaining sleeve being retracted off of the stent end during expansion of the stent, thereby releasing the stent from the at least one stent retaining sleeve.
9. The stent delivery system of claim 1 wherein the balloon is manufactured from at least one member of the group consisting of: polyesters, polyethylene terephthalate, polybutylene terephthalate, PEBAX, Nylon, polyurethane, ARNITEL TM, polyolefin, polyolefin compounds and any combinations thereof.
10. A stent delivery balloon having a non-inflated state and being inflatable to an inflated state, the balloon comprising:
a stent mounting region, at least a portion of the stent mounting region being constructed and arranged to disposingly receive a stent thereabout, the stent mounting region having a middle portion, a first end portion adjacent to the middle
11 portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being greater than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter;
a first cone, the first cone being immediately adjacent to the first end portion, the first cone having a first waist, the first waist having a first waist diameter, the first end portion diameter being greater than the first waist diameter; and a second cone, the second cone being immediately adjacent to the second end portion, the second cone having a second waist, the second waist having a second waist diameter, the second end portion diameter being greater than the send waist diameter.
11. A stent delivery balloon having a non-inflated state and being inflatable to an inflated state, the stent delivery balloon comprising:
a stent mounting region, the stent mounting region having a middle portion, a first end portion adjacent to the middle portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being greater than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter.
12. A stent delivery system comprising:
a catheter, the catheter having a catheter shaft;
a medical balloon mounted on the catheter shaft, the medical balloon having a non-inflated state and being inflatable to an inflated state, the medical balloon having a stent mounting region, and a stent disposed about at least a portion of the stent mounting region, the stent mounting region having a middle portion, a first end portion adjacent to the middle portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being less than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter.
13. The stent delivery system of claim 12 whereby, when the medical balloon is expanded the first end portion and the second end portion pushes against the stent before the middle portion.
14. The stent delivery system of claim 12 wherein when the balloon is in the non-inflated state the middle portion diameter is between about 0.1 - 0.25 mm less than the first end portion diameter and the second end portion diameter.
15. The stent delivery system of claim 12, the medical balloon further comprising:
a first cone, the first cone being immediately adjacent to the first end portion, the first cone having a first waist, the first waist having a first waist diameter, the first waist engaged to a first portion of the catheter shaft, the first end portion diameter being greater than the first waist diameter; and a second cone, the second cone being immediately adjacent to the second end portion, the second cone having a second waist, the second waist having a second waist diameter, the second waist engaged to a second portion of the catheter shaft, the second end portion diameter being greater than the send waist diameter.
16. The stent delivery system of claim 12 further comprising at least one stent retaining sleeve, the at least one stent retaining sleeve having a stent retaining portion disposed about one end of the stent and a catheter engagement portion engaged to a portion of the catheter shaft adjacent to the medical balloon.
17. The stent delivery system of claim 12, the stent comprising an unexpanded state and an expanded state, the stent further comprising a stent center, a first stent end and a second stent end.
18. The stent delivery system of claim 17 further comprising at least one stent delivery sleeve, the at least one stent retaining sleeve being retracted off of the stent ends during expansion of the stent, thereby releasing the stent from the at least one stent retaining sleeve.
19. The stent delivery system of claim 12 wherein the balloon is manufactured from at least one member of the group consisting of: polyesters, polyethylene terephthalate, polybutylene terephthalate, PEBAX, Nylon, polyurethane, ARNITEL.TM., polyolefin, polyolefin compounds and any combinations thereof.
20. A stent delivery balloon having a non-inflated state and being inflatable to an inflated state, the balloon comprising:
a stent mounting region, at least a portion of the stent mounting region being constructed and arranged to disposingly receive a stent thereabout, the stent mounting region having a middle portion, a first end portion adjacent to the middle portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being less than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter;
a first cone, the first cone being immediately adjacent to the first end portion, the first cone having a first waist, the first waist having a first waist diameter, the first end portion diameter being greater than the first waist diameter; and a second cone, the second cone being immediately adjacent to the second end portion, the second cone having a second waist, the second waist having a second waist diameter, the second end portion diameter being greater than the send waist diameter.
21. A stent delivery balloon having a non-inflated state and being inflatable to an inflated state, the stent delivery balloon comprising:
a stent mounting region, the stent mounting region having a middle portion, a first end portion adjacent to the middle portion and a second end portion adjacent to the middle portion, the middle portion having a middle portion diameter, the first end portion having a first end portion diameter, the second end portion having a second end portion diameter, in the non-inflated state the middle portion diameter being less than the first end portion diameter and the second end portion diameter, in the inflated state the middle portion diameter being substantially the same as the fist end portion diameter and the second end portion diameter.
CA2430806A 2000-12-18 2001-12-18 Catheter for controlled stent delivery Expired - Fee Related CA2430806C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/740,101 2000-12-18
US09/740,101 US7037318B2 (en) 2000-12-18 2000-12-18 Catheter for controlled stent delivery
PCT/US2001/049192 WO2002049703A2 (en) 2000-12-18 2001-12-18 Catherer for controlled stent delivery

Publications (2)

Publication Number Publication Date
CA2430806A1 true CA2430806A1 (en) 2002-06-27
CA2430806C CA2430806C (en) 2010-09-28

Family

ID=24975033

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2430806A Expired - Fee Related CA2430806C (en) 2000-12-18 2001-12-18 Catheter for controlled stent delivery

Country Status (9)

Country Link
US (2) US7037318B2 (en)
EP (2) EP1343556B1 (en)
JP (2) JP2004520880A (en)
AT (2) ATE501689T1 (en)
AU (1) AU2002231061A1 (en)
CA (1) CA2430806C (en)
DE (2) DE60144253D1 (en)
ES (1) ES2324396T3 (en)
WO (1) WO2002049703A2 (en)

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Also Published As

Publication number Publication date
US7037318B2 (en) 2006-05-02
EP1343556A2 (en) 2003-09-17
EP1683500A3 (en) 2008-12-10
DE60144253D1 (en) 2011-04-28
WO2002049703A3 (en) 2003-01-09
ATE425786T1 (en) 2009-04-15
US20020077690A1 (en) 2002-06-20
JP2007075628A (en) 2007-03-29
ATE501689T1 (en) 2011-04-15
CA2430806C (en) 2010-09-28
EP1683500B1 (en) 2011-03-16
EP1343556B1 (en) 2009-03-18
JP2004520880A (en) 2004-07-15
DE60138039D1 (en) 2009-04-30
WO2002049703A2 (en) 2002-06-27
US20060161240A1 (en) 2006-07-20
ES2324396T3 (en) 2009-08-06
JP4694456B2 (en) 2011-06-08
EP1683500A2 (en) 2006-07-26
AU2002231061A1 (en) 2002-07-01

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Effective date: 20131218