Fitting tool for use of an expansible endoprosthesis for a human or animal tubular organ

• US 6,019,787 A
• Filed: 10/07/1997
• Issued: 02/01/2000
• Est. Priority Date: 03/12/1992
• Status: Expired due to Term

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: Laboratoire Perouse Implant
• Inventors: Perouse, Eric, Richard, Thierry
• Primary Examiner(s): Milano, Michael J.
• Application Number:
  US08/946,657
• Time in Patent Office: 847 Days
• Field of Search: 623/1, 623/11, 623/12, 606/194, 606/195
• US Class Current: 606/194
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/97 the outer sleeve being splittable
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30199 Three-dimensional shapes
• CPC Class Codes: A61F 2002/30327 differing in diameter
• CPC Class Codes: A61F 2230/0063 Three-dimensional shapes
• CPC Class Codes: A61F 2230/0078 hyperboloidal
• CPC Class Codes: A61F 2250/0039 differing in diameter
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

An endoprosthesis includes an extensible tubular mesh embedded in a plastic or elastomer extensible film. A tool for positioning the endoprosthesis includes a tube-shaped guide provided at its distal end with a tulip-shaped housing. Cutting threads cause the housing to open longitudinally into several petal-like parts. Application is to endoluminal treatment of aneurisms and dilations.

Claims

1. A tool for fitting a self-expanding stent comprising:

a guide tube having a distal end;

a housing part for housing a self-expanding stent, said housing part provided at said distal end of said guide tube; and

a housing part opener for opening said housing part independent of the self-expanding stent.

2. The tool of claim 1, wherein said housing part opener includes an actuation handle and wires for cutting said housing part into several sections, said wires being connected to said actuation handle.

3. The tool of claim 1, wherein said housing part includes a longitudinal slit forming edges in said housing part, said housing part having a series of gussets disposed along each of said edges, said gussets along each of said edges being fitted together;

and

said housing part opener including an actuation handle and a cord, said cord passing through said gussets along each of said edges such that said cord holds said edges together, said cord being connected to said actuation handle.

4. The tool of claim 1, wherein said housing part comprises a tulip-shaped housing part.

5. The tool of claim 4, wherein said housing part opener includes an actuation handle and wires for cutting said housing part into several sections, said wires being connected to said actuation handle.

6. The tool of claim 4, wherein said housing part includes a longitudinal slit forming edges in said housing part, said housing part having a series of gussets disposed along each of said edges, said gussets along each of said edges being fitted together;

and

said housing part opener including an actuation handle and a cord, said cord passing through said gussets along each of said edges such that said cord holds said edges together, said cord being connected to said actuation handle.

7. The tool of claim 4, wherein said guide tube includes at least one longitudinal channel for injecting fluids.

8. The tool of claim 7, wherein said housing part opener includes an actuation handle and wires for cutting said housing part into several sections, said wires being connected to said actuation handle.

9. The tool of claim 7, wherein said housing part includes a longitudinal slit forming edges in said housing part, said housing part having a series of gussets disposed along each of said edges, said gussets along each of said edges being fitted together;

and

said housing part opener including an actuation handle and a cord, said cord passing through said gussets along each of said edges such that said cord holds said edges together, said cord being connected to said actuation handle.

10. The tool of claim 1, wherein said guide tube includes at least one longitudinal channel for injecting fluids.

11. The tool of claim 10, wherein said housing part opener includes an actuation handle and wires for cutting said housing part into several sections, said wires being connected to said actuation handle.

12. The tool of claim 10, wherein said housing part includes a longitudinal slit forming edges in said housing part, said housing part having a series of gussets disposed along each of said edges, said gussets along each of said edges being fitted together;

and

said housing part opener including an actuation handle and a cord, said cord passing through said gussets along each of said edges such that said cord holds said edges together, said cord being connected to said actuation handle.