CA2521708A1 - Medical device delivery systems - Google Patents

Medical device delivery systems Download PDF

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Publication number
CA2521708A1
CA2521708A1 CA002521708A CA2521708A CA2521708A1 CA 2521708 A1 CA2521708 A1 CA 2521708A1 CA 002521708 A CA002521708 A CA 002521708A CA 2521708 A CA2521708 A CA 2521708A CA 2521708 A1 CA2521708 A1 CA 2521708A1
Authority
CA
Canada
Prior art keywords
implantable medical
catheter
retainer
medical endoprosthesis
cell
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
CA002521708A
Other languages
French (fr)
Other versions
CA2521708C (en
Inventor
Richard C. Gunderson
Andrzej M. Malewicz
Karen Larson
John R. Moberg
Susan I. Shelso
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 CA2521708A1 publication Critical patent/CA2521708A1/en
Application granted granted Critical
Publication of CA2521708C publication Critical patent/CA2521708C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/82Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/86Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
    • A61F2/90Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
    • A61F2/91Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/958Inflatable balloons for placing stents or stent-grafts
    • A61F2002/9583Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/95Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/966Instruments 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
    • A61F2002/9665Instruments 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 with additional retaining means

Abstract

Medical device delivery systems, and related methods and components are disclosed.

Claims (39)

1. An implantable medical endoprosthesis bumper having a retainer configured to interdigitate with a cell of an implantable medical endoprosthesis to unidirectionally position the implantable medical endoprosthesis with respect to the bumper.
2. The implantable medical endoprosthesis bumper of claim 1, wherein the implantable medical endoprosthesis bumper includes a bumper body, and the retainer protrudes radially from the bumper body.
3. The implantable medical endoprosthesis bumper of claim 2, wherein the retainer comprises a flap that protrudes radially from the bumper body.
4. The implantable medical endoprosthesis of claim 2, wherein the retainer comprises a hook, a spike, or a barb.
5. The implantable medical endoprosthesis of claim 1, wherein the retainer comprises a wax.
6. The implantable medical endoprosthesis of claim 1, wherein the retainer is capable of flexing to interdigitate with the cell or to disengage from the cell.
7. A catheter having an implantable medical endoprosthesis bumper, the bumper including a retainer configured to interdigitate with a cell of an implantable medical endoprosthesis to unidirectionally position the implantable medical endoprosthesis with respect to the bumper.
8. An implantable medical endoprosthesis delivery system, comprising:
a catheter having an implantable medical endoprosthesis bumper, the bumper including a retainer configured to interdigitate with a cell of an implantable medical~

endoprosthesis to unidirectionally position the implantable medical endoprosthesis with respect to the bumper; and a sheath at least partially surrounding the catheter, wherein the catheter and the sheath are configured so that the implantable medical endoprosthesis can be disposed therebetween.
9. The endoprosthesis delivery system of claim 8, further comprising the implantable medical endoprosthesis between the catheter and the sheath.
10. A method of positioning an implantable medical endoprosthesis on a catheter, the method comprising:
unidirectionally positioning the implantable medical endoprosthesis with respect to the catheter without reducing a diameter of the implantable medical endoprosthesis.
11. The method of claim 10, wherein the catheter comprises a bumper including a retainer configured to interdigitate with a cell of the implantable medical endoprosthesis.
12. The method of claim 10, wherein the catheter comprises a catheter body including a retainer configured to interdigitate with a cell of the implantable medical endoprosthesis.
13. The method of claim 11, wherein the implantable medical endoprosthesis has a partially open cell, and unidirectionally positioning the implantable medical endoprosthesis with respect to the catheter comprises flexing the partially open cell to interdigitate the partially open cell with the retainer.
14. A method of positioning an implantable medical endoprosthesis on a catheter, the method comprising:
interdigitating a cell of the implantable medical endoprosthesis with a retainer of the catheter without reducing a diameter of the implantable medical endoprosthesis.
15 15. The method of claim 14, wherein the catheter comprises a bumper including the retainer.
16. The method of claim 15, wherein the bumper includes a bumper body, and the retainer protrudes radially from the bumper body.
17. The method of claim 14, wherein the catheter includes a catheter body comprising the retainer.
18. The method of claim 14, wherein interdigitating a cell of the implantable medical endoprosthesis with a retainer of the catheter comprises expanding the retainer from a first size to a second size.
19. The method of claim 14, wherein the retainer comprises a wax and interdigitating a cell of the implantable medical endoprosthesis with the retainer comprises molding the wax to extend into the cell.
20. A method of positioning an implantable medical endoprosthesis on a catheter, the method comprising:
moving the implantable medical endoprosthesis in a longitudinal direction of the catheter to interdigitate a cell of the implantable medical endoprosthesis with the catheter without reducing a diameter of the implantable medical endoprosthesis.
21. The method of claim 20, wherein the catheter comprises a bumper including the retainer configure to interdigitate the cell of the implantable medical endoprosthesis.
22. The method of claim 21, wherein the bumper includes a bumper body, and the retainer protrudes radially from the bumper body.
23. The method of claim 20, wherein the catheter comprises a catheter body including the retainer.
24. A method of positioning an implantable medical endoprosthesis on a catheter, the method comprising:
interdigitating a partially open cell of the implantable medical endoprosthesis with a retainer of the catheter.
25. The method of claim 24, wherein interdigitating a partially open cell of the implantable medical endoprosthesis with a retainer of the catheter comprises flexing the partially open cell.
26. The method of claim 24, wherein interdigitating a partially open cell of the implantable medical endoprosthesis with a retainer of the catheter comprises expanding the retainer.
27. The method of claim 24, wherein the retainer comprises a wax and interdigitating a cell of the implantable medical endoprosthesis with the retainer comprises molding the wax to extend into the cell.
28. A method of positioning an implantable medical endoprosthesis on a catheter, the method comprising:
expanding a retainer of the catheter to interdigitate a cell of the implantable medical endoprosthesis with the catheter.
29. The method of claim 28, wherein the retainer comprises a shape memory material.
30. The method of claim 28, wherein the retainer comprises a swellable material.
31. The method of claim 28, further comprising disposing the implantable medical endoprosthesis over the retainer prior to expanding the retainer.
32. The method of claim 28, wherein the catheter comprises an implantable medical endoprosthesis bumper comprising the retainer.
33. The method of claim 28, wherein the catheter comprises a catheter body comprising the retainer.
34. A catheter having a catheter body, the catheter body including a retainer configured to interdigitate with a cell of an implantable medical endoprosthesis to unidirectionally position the implantable medical endoprosthesis with respect to the catheter body.
35. The catheter of claim 34, wherein the retainer protrudes radially from the catheter body.
36. The catheter of claim 34, wherein the retainer is capable of flexing to interdigitate with the cell or to disengage from the cell.
37. An implantable medical endoprosthesis delivery system, comprising:
a catheter having a catheter body, the catheter body including a retainer configured to interdigitate with a cell of an implantable medical endoprosthesis to unidirectionally position the implantable medical endoprosthesis with respect to the catheter body; and a sheath at least partially surrounding the catheter, wherein the catheter and the sheath are configured so that the implantable medical endoprosthesis can be disposed therebetween.
38. An implantable medical endoprosthesis having first and second ends along a longitudinal direction, and a plurality of cells including a partially open cell located at the first end, wherein the partially open cell is capable of flexing in a plane parallel to the longitudinal direction.
39. ~The implantable medical endoprosthesis of claim 38, wherein the partially open cell is capable of interdigitating with a retainer of a stent bumper.
CA2521708A 2003-04-11 2004-04-09 Medical device delivery systems Expired - Fee Related CA2521708C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/411,645 US7473271B2 (en) 2003-04-11 2003-04-11 Stent delivery system with securement and deployment accuracy
US10/411,645 2003-04-11
PCT/US2004/011023 WO2004091446A2 (en) 2003-04-11 2004-04-09 Medical device delivery systems

Publications (2)

Publication Number Publication Date
CA2521708A1 true CA2521708A1 (en) 2004-10-28
CA2521708C CA2521708C (en) 2012-05-29

Family

ID=33131036

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2521759A Expired - Fee Related CA2521759C (en) 2003-04-11 2004-04-07 Stent delivery system with securement and deployment accuracy
CA2521708A Expired - Fee Related CA2521708C (en) 2003-04-11 2004-04-09 Medical device delivery systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA2521759A Expired - Fee Related CA2521759C (en) 2003-04-11 2004-04-07 Stent delivery system with securement and deployment accuracy

Country Status (5)

Country Link
US (1) US7473271B2 (en)
EP (2) EP1613243B1 (en)
JP (2) JP4754479B2 (en)
CA (2) CA2521759C (en)
WO (2) WO2004091450A2 (en)

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