Prosthesis and delivery system

• US 8,876,876 B2
• Filed: 06/06/2008
• Issued: 11/04/2014
• Est. Priority Date: 06/06/2008
• Status: Expired due to Fees

• Current Assignee: Back Bay Medical Incorporated (Quarterhill Inc. (f/k/a Wi-LAN Inc.))
• Original Assignee: Back Bay Medical Incorporated (Quarterhill Inc. (f/k/a Wi-LAN Inc.))
• Inventors: Hebert, Stephen, Levine, Marc-Alan
• Primary Examiner(s): FISHBACK, ASHLEY LAUREN
• Application Number:
  US12/134,591
• Publication Number:
  US 20090306761A1
• Time in Patent Office: 2,342 Days
• Field of Search: 606/108, 623 111- 112, 623/1.15, 623/1.2, 623/1.23, 623/903
• US Class Current: 623/1.11
• 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:

a prosthesis having a longitudinal body generally disposed about an axis, the longitudinal body having proximal and distal ends, the proximal end of the prosthesis having a proximal locking device comprising a first proximal extension extending proximally from the proximal end of the longitudinal body, the first proximal extension having located thereon first and second radially extending and spaced-apart locking members, the first locking member having a first proximal facing surface and the second locking member having a first distal facing surface, the first proximal facing surface and the first distal facing surface opposing one another, the first proximal facing surface and the first distal facing surface being spaced-apart by the first distance;

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting the prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide and having a width approximately equal to the first distance, the first radially extending member having a second proximal facing surface and a second distal facing surface, the prosthesis being mounted on the distal section of the elongate guide, the first proximal facing surface positioned to abut or nearly abut the second distal facing surface and the first distal facing surface positioned to abut or nearly abut the second proximal facing surface,

wherein the first radially extending member comprises a cylindrical member that is sandwiched between the first and second locking members, the cylindrical member comprising a coil; 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 comprising:

a prosthesis having a longitudinal body generally disposed about an axis, the longitudinal body having proximal and distal ends, the proximal end of the prosthesis having a proximal locking device comprising a first proximal extension extending proximally from the proximal end of the longitudinal body, the first proximal extension having located thereon first and second radially extending and spaced-apart locking members, the first locking member having a first proximal facing surface and the second locking member having a first distal facing surface, the first proximal facing surface and the first distal facing surface opposing one another, the first proximal facing surface and the first distal facing surface being spaced-apart by the first distance;

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting the prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide and having a width approximately equal to the first distance, the first radially extending member having a second proximal facing surface and a second distal facing surface, the prosthesis being mounted on the distal section of the elongate guide, the first proximal facing surface positioned to abut or nearly abut the second distal facing surface and the first distal facing surface positioned to abut or nearly abut the second proximal facing surface;

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 third proximal facing surface and a third distal facing surface, the prosthesis having at least one feature in abutting or near abutting relationship to the third proximal facing surface and/or the third distal facing surface of the second radially extending member; and

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

3. The prosthesis delivery system according to claim 2 wherein the at least one feature comprises a radiopaque material.

4. The prosthesis delivery system according to claim 2 wherein the second radially extending member comprises a radiopaque material.