CA2701248A1 - System and method for forming a stent of a desired length at an endoluminal site - Google Patents

System and method for forming a stent of a desired length at an endoluminal site Download PDF

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Publication number
CA2701248A1
CA2701248A1 CA2701248A CA2701248A CA2701248A1 CA 2701248 A1 CA2701248 A1 CA 2701248A1 CA 2701248 A CA2701248 A CA 2701248A CA 2701248 A CA2701248 A CA 2701248A CA 2701248 A1 CA2701248 A1 CA 2701248A1
Authority
CA
Canada
Prior art keywords
stent body
stent
endoluminal
cutting mechanism
drive cable
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
CA2701248A
Other languages
French (fr)
Other versions
CA2701248C (en
Inventor
Richard W. Ducharme
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.)
Cook Medical Technologies LLC
Original Assignee
Wilson-Cook Medical Inc.
Richard W. Ducharme
Cook Medical Technologies Llc
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 Wilson-Cook Medical Inc., Richard W. Ducharme, Cook Medical Technologies Llc filed Critical Wilson-Cook Medical Inc.
Publication of CA2701248A1 publication Critical patent/CA2701248A1/en
Application granted granted Critical
Publication of CA2701248C publication Critical patent/CA2701248C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/008—Implant devices for drainage of body fluids from one part of the body to another pre-shaped, for use in the urethral or ureteral tract
    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B2017/32004—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes having a laterally movable cutting member at its most distal end which remains within the contours of said end
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2002/041—Bile ducts
    • 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
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2002/826—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents more than one stent being applied sequentially

Abstract

Described herein are a system (100) and a method for forming a stent of a desired length endoluminally. The system includes an elongate stent body (105) and an outer sheath (110) overlying the stent body. An endoluminal cutting mechanism (115) is operatively connected to a drive cable (120) in communication with the outer sheath. The cutting mechanism is configured to cut the stent body in response to motion of the drive cable. The method of forming the stent of a desired length endoluminally includes directing a system including an elongate stent body and an outer sheath overlying the stent body into a body lumen, positioning the stent body at an endoluminal site, and severing the stent body to form a stent of a desired length at the endoluminal site. An undeployed portion of the stent body remains in the outer sheath for optional deployment in a subsequent severing operation.

Claims

1. A system for forming a stent of a desired length at an endoluminal site, the system comprising:
an elongate stent body;
an outer sheath overlying the stent body, the outer sheath including a primary lumen and a secondary lumen, the stent body being slidingly disposed within the primary lumen;
an endoluminal cutting mechanism operatively connected to a drive cable slidingly disposed within the secondary lumen of the outer sheath, wherein the cutting mechanism is configured to sever the stent body in response to motion of the drive cable within the secondary lumen.

3. The system of claim 1, wherein the outer sheath comprises a first tubular body including the primary lumen and a second tubular body including the secondary lumen, the second tubular body being adjoined to the first tubular body.

4. The system of claim 1, wherein the drive cable has a length sufficient for the motion thereof to be actuated from outside a body lumen.

5. The system of claim 1, wherein the endoluminal cutting mechanism comprises a wire mechanism extending from a distal end of the drive cable.

6. The system of claim 1, wherein the endoluminal cutting mechanism comprises a scissor mechanism attached to a distal end of the drive cable.

7. The system of claim 1, wherein the endoluminal cutting mechanism is configured to generate heat.

8. The system of claim 7, further comprising an electrical power source in communication with a proximal portion of the drive cable for passing a current through the cutting mechanism.

9. The system of claim 1, wherein the endoluminal cutting mechanism includes a radiopaque material.

10. The system of claim 1, wherein the stent body comprises a shape memory polymer.

11. The system of claim 1, wherein the stent body comprises a substantially straight but pliable configuration within the outer sheath and a coiled configuration at an endoluminal treatment site.

12. The system of claim 1, wherein the stent body includes a marking pattern along a length thereof.

13. The system of claim 1, wherein the drive cable has a length sufficient for the motion thereof to be actuated from outside a body lumen, wherein the endoluminal cutting mechanism includes a radiopaque material and is configured to generate heat, and wherein the stent body comprises a shape memory polymer, the stent body having a substantially straight but pliable configuration within the outer sheath and a coiled configuration at an endoluminal treatment site, and further wherein the stent body includes a marking pattern along a length thereof.

14. The system of claim 13, wherein the endoluminal cutting mechanism comprises a wire mechanism extending from a distal end of the drive cable.

15. The system of claim 13, wherein the endoluminal cutting mechanism comprises a scissor mechanism attached to a distal end of the drive cable.

16. A system for forming at least one stent of a desired length at an endoluminal site, the system comprising:
an elongate stent body severable into a deployed portion and an undeployed portion thereof, the deployed portion being a stent of a desired length, and the stent body including a marking pattern along a length thereof;

an outer sheath overlying the stent body; and and endoluminal cutting mechanism disposed adjacent to the stent body, wherein, upon severing of the stent body by the endoluminal cutting mechanism, the stent is deployed at an endoluminal site and the undeployed portion of the stent body remains in the outer sheath, the undeployed portion being configured for deployment in a subsequent severing operation.

17. The system of claim 16, wherein the endoluminal cutting mechanism is one of a wire mechanism and a scissor mechanism.

18. The system of claim 16, further comprising a drive cable operatively connected to the endoluminal cutting mechanism, the stent body being severed by the endoluminal cutting mechanism in response to motion of the drive cable.

19. The system of claim 18, wherein the drive cable is slidingly disposed in a secondary lumen of the outer sheath, the stent body being slidingly disposed in a primary lumen thereof.

20. A method of forming at least one stent of a desired length endoluminally, the method comprising:
directing a deployment system into a body lumen, the deployment system comprising an elongate stent body and an outer sheath overlying the stent body, the stent body including a marking pattern along a length thereof;

positioning the stent body at an endoluminal site; and severing the stent body to form a stent of a desired length at the endoluminal site, an undeployed portion of the stent body remaining in the outer sheath.

21. The method of claim 20, further comprising a cutting mechanism disposed adjacent to the stent body, wherein severing the stent body comprises actuating the cutting mechanism.

22. The method of claim 21, wherein actuating the cutting mechanism comprises moving a drive cable operatively connected thereto.

23. The method of claim 20, wherein severing the stent body comprises passing a current through the cutting mechanism.

24. The method of claim 20, wherein positioning the stent body at an endoluminal site and severing the stent body are carried out more than one time to form more than one stent of a desired length from the stent body.
CA2701248A 2007-10-04 2008-10-01 System and method for forming a stent of a desired length at an endoluminal site Active CA2701248C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/867,515 US7691125B2 (en) 2007-10-04 2007-10-04 System and method for forming a stent of a desired length at an endoluminal site
US11/867,515 2007-10-04
PCT/US2008/078360 WO2009046043A1 (en) 2007-10-04 2008-10-01 System and method for forming a stent of a desired length at an endoluminal site

Publications (2)

Publication Number Publication Date
CA2701248A1 true CA2701248A1 (en) 2009-04-09
CA2701248C CA2701248C (en) 2013-02-19

Family

ID=40028933

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2701248A Active CA2701248C (en) 2007-10-04 2008-10-01 System and method for forming a stent of a desired length at an endoluminal site

Country Status (6)

Country Link
US (1) US7691125B2 (en)
EP (1) EP2200543B1 (en)
JP (1) JP2010540176A (en)
AU (1) AU2008308859B2 (en)
CA (1) CA2701248C (en)
WO (1) WO2009046043A1 (en)

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Also Published As

Publication number Publication date
AU2008308859B2 (en) 2014-01-23
CA2701248C (en) 2013-02-19
WO2009046043A1 (en) 2009-04-09
EP2200543B1 (en) 2015-09-23
AU2008308859A1 (en) 2009-04-09
EP2200543A1 (en) 2010-06-30
US7691125B2 (en) 2010-04-06
US20090093889A1 (en) 2009-04-09
JP2010540176A (en) 2010-12-24

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