PROSTHESIS AND DELIVERY SYSTEM

• US 20090306761A1
• Filed: 06/06/2008
• Published: 12/10/2009
• Est. Priority Date: 06/06/2008
• Status: Active Grant

• Current Assignee: Back Bay Medical Incorporated (Quarterhill Inc. (f/k/a Wi-LAN Inc.))
• Original Assignee: Bay Street Medical, Inc.
• Inventors: Hebert, Stephen, Levine, Marc-Alan
• Granted Patent: US 8,876,876 B2
• Time in Patent Office: Days
• US Class Current: 623/1.120
• CPC Class Codes: A61B 50/30 Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A prosthesis delivery system including a prosthesis mounted on an elongate member. The prosthesis has a locking member positioned on the prosthesis. The locking member includes a reduced diameter portion with two opposing surfaces that are configured to engage opposing proximal and distal sides of a radially extending member on the elongate member to lock or limit the longitudinal position of the prosthesis on the elongate member during delivery of the prosthesis to a treatment site.

Claims

1. A prosthesis delivery system comprising:

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting a prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide, the first radially extending member having a proximal side and a distal side, the prosthesis mounted on the distal section of the elongate guide and having a body comprising proximal and distal ends, the proximal end having a first locking member having first and second opposing surfaces, the first surface positioned on the proximal side of the radially extending member, the second surface positioned on the distal side of the radially extending member; and

a sheath disposed over at least a portion of the elongate guide to constrain the prosthesis on the elongate guide.

2. A prosthesis delivery system according to claim 1 wherein the sheath is a catheter.

3. A prosthesis delivery system according to claim 1 wherein the proximal end of the prosthesis body comprises struts that form at least one short peak and at least one long peak, the first locking member located on the long peak.

4. A prosthesis delivery system according to claim 1 further comprising a first proximal extension attached to the proximal end of the prosthesis body, the first locking member located on the first proximal extension.

5. A prosthesis delivery system according to claim 1 wherein the prosthesis has a plurality of first locking members.

6. A prosthesis delivery system according to claim 1 wherein the first locking member comprises a radiopaque material.

7. A prosthesis delivery system according to claim 1 wherein the first radially extending member comprises a radiopaque material.

8. A prosthesis delivery system according to claim 1 wherein the first radially extending member comprises a cylindrical member.

9. A prosthesis delivery system according to claim 8 wherein the cylindrical member comprises a coil.

10. A prosthesis delivery system according to claim 4 wherein the first radially extending member comprises a recess for receiving a portion of the first extension.

11. A prosthesis delivery system according to claim 1 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to the distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having at least one feature in abutting or near abutting relationship to the proximal and/or distal side of the second radially extending member.

12. A prosthesis delivery system according to claim 11 wherein the at least one feature comprises a radiopaque material.

13. A prosthesis delivery system according to claim 11 wherein the second radially extending member comprises a radiopaque material.

14. A prosthesis delivery system according to claim 1 wherein the sheath is a packaging sheath.