Endoprosthesis catheter

• US 5,312,339 A
• Filed: 04/08/1991
• Issued: 05/17/1994
• Est. Priority Date: 04/13/1990
• Status: Expired due to Fees

• Current Assignee: Georges Boussignac, Jean-Claude Labrune
• Original Assignee: Georges Boussignac, Jean-Claude Labrune
• Inventors: Boussignac, Georges, Labrune, Jean-Claude
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): SMITH, CHALIN A
• Application Number:
  US07/682,591
• Time in Patent Office: 1,135 Days
• Field of Search: 604/96-103, 604/264, 604/280, 606/191, 606/192, 606/194, 623/10, 623/112, 128/4, 128/6
• US Class Current: 604/103.07
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61M 25/1002 characterised by balloon shape A61M25/1006, A61M25/1009 take precedence

Abstract

A catheter for a morphological duct is disclosed, comprising an inflatable sleeve surrounding the distal end of said catheter and connected to the proximal end of said catheter by at least one inflating conduit which can be connected to an inflating device and said inflatable sleeve may take on either a deflated state in which it is applied against said distal end of said catheter, or an inflated state in which it is applied by its external wall against the internal wall of said morphological duct, then forming an annular space between its internal wall and said distal end of said catheter.

Claims

1. Catheter for a morphological duct comprising an inflatable sleeve having an external wall and an internal wall, said sleeve surrounding the distal end of said catheter and connected thereto by a first flexible connection, said first flexible connection being itself connected to the proximal end of said catheter by at least one inflating conduit which can be connected to an inflating device and said inflatable sleeve may take on either a deflated state in which its internal wall is applied against said distal end of said catheter, or an inflated state in which its external wall bears against the internal wall of said morphological duct, forming an annular space between the internal wall of said inflatable sleeve and said distal end of said catheter, wherein said inflating device feeds inflating fluid capable of making said sleeve rigid in its inflated state and said first flexible connection is breakable.

2. The catheter as claimed in claim 1, further comprising a resilient membrane surrounding said sleeve and compressing its against said distal end of the catheter.

3. The catheter as claimed in claim 2, wherein said resilient membrane is perforated.

4. The catheter as claimed in claim 1, further comprising a draining conduit connecting said sleeve to the proximal end of the catheter, by means of a second flexible connection connecting said sleeve to the distal end of said catheter, wherein said second flexible connection is breakable.

5. The catheter as claimed in claim 1, wherein said sleeve is formed by a tube wound in a helical coil.

6. The catheter as claimed in claim 5, wherein the turns of said coil are not jointing.

7. The catheter as claimed in claim 1, wherein said sleeve is a double-walled tube.

8. The catheter as claimed in claim 7, wherein said double-walled tube is formed with lateral openings which are sealed against entry of fluid to the interior of said tube.

9. The catheter as claimed in claim 1, wherein said sleeve is pre-formed.

10. The catheter as claimed in claim 9, wherein the external diameter of said sleeve, inflated out of said morphological duct to the pressure of use thereinside, is greater by about 10% than the diameter of said morphological duct.