Medical treatment of a diseased anatomical duct

• US 6,248,116 B1
• Filed: 10/20/1999
• Issued: 06/19/2001
• Est. Priority Date: 12/16/1997
• Status: Expired due to Fees

• Current Assignee: B. Braun Celsa
• Original Assignee: B. Braun Celsa
• Inventors: Nadal, Guy, Chevillon, Gérard, Anidjar, Samy
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US09/355,879
• Time in Patent Office: 608 Days
• Field of Search: 606/142, 606/139, 606/151, 606/143, 606/144, 606/213, 606/140, 128/898
• US Class Current: 606/139
• CPC Class Codes: A61B 17/064 Surgical staples, i.e. penetrating the tissue
• CPC Class Codes: A61B 17/0643 with separate closing member, e.g. for interlocking with staple
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching

Abstract

This invention relates to a medical device comprising an implant for the treatment of an affection of an anatomical duct. A part of the duct (V) wall is lined on the outside with at least one lining (140′a), essentially facing the proximal and/or distal ends of the implant (100). Means of fastening (361) the lining to the implant apply, through the duct wall, the implant against this duct, and means of setting both the lining and the fastening means allow their positioning around said duct. In particular, application to the treatment of an aneurysm.

Claims

1. A method for implanting a medical prosthesis, the medical prosthesis comprising stent means and a tubular sleeve having a first and a second free end, the stent means being located adjacent the first free end, the second free end being deprived of said stent means, the method comprising:

introducing the medical prothesis into a duct,

radially expanding the prosthesis in said duct,

applying a strap against an outer surface of a wall of the duct for sealing the medical prothesis to said duct wall, the strap being located adjacent the first end of the medical prothesis,

introducing fastening means into the human body, for fastening the strap, the duct wall and the medical prosthesis all together at a location adjacent the first end of the tubular sleeve,

passing the fastening means through the strap, the duct wall and the medical prosthesis, adjacent said first end, so that the strap, the duct and the medical prosthesis are sealingly fastened all together,

cutting the duct adjacent a second portion of the duct for separating a first portion from the second portion,

passing the second free end of the tubular sleeve through the cut of the duct first portion, and

fastening the second end of the tubular sleeve to the second portion of the duct.

2. A method for implanting a medical prosthesis, the prosthesis having first and second free ends and comprising a tubular sleeve, the method comprising:

introducing the medical prosthesis into a duct,

radially expanding the prosthesis in said duct,

applying first and second sealing straps against the duct wall, the first and second straps being located adjacent the first and second free ends of the prosthesis,

introducing first fastening means into the human body, for fastening the first strap, the duct and the medical prosthesis all together at a location adjacent the first end of the medical prosthesis,

passing the first fastening means through the first sealing strap, the duct and the tubular sleeve of the medical prosthesis, adjacent said first end, so that the first sealing strap, the duct and the medical prosthesis are sealingly fastened all together,

introducing second fastening means into the human body, for fastening the second sealing strap, the duct and the medical prosthesis all together at a location adjacent the second end of the medical prosthesis, and

passing the second fastening means through the second sealing strap, the duct and the tubular sleeve of the medical prosthesis, adjacent said second end, so that the second sealing strap, the duct and the medical prosthesis are sealingly fastened all together.

3. The method according to claim 2, wherein the step of passing the fastening means through the strap, the duct wall and the medical prosthesis comprises the step of passing said fastening means through said duct wall from the outer surface of the duct wall, toward the prosthesis.

4. The method according to claim 2, wherein the step of passing the fastening means through the duct wall comprises the steps of:

introducing a surgical staple into a human body and passing said staple through the duct wall, the strap and the prosthesis,

deforming said staple to sealingly tighten the strap, the duct wall and the medical prosthesis all together.

5. The method according to claim 2, wherein the step of passing the fastening means through the duct wall comprises the step of surgically suturing the tubular sleeve of the medical prosthesis, the strap and the duct wall all together.

6. The method according to claim 2, wherein the step of applying the straps comprises the further steps of:

providing a strap which is elastically deformable between a first relaxed position in which it has an open section ring shape and a second constrained position,

introducing the sealing straps into a human body, in said second constrained position thereof, and

allowing the sealing strap to deform from the second constrained position toward the first relaxed position while disposing the sealing strap around the duct wall to tighten said duct wall.

7. The method according to claim 2, wherein the step of applying the strap comprises the further steps of:

providing a strap having a length, first and second free ends and divisible extensions at said first and second free ends, the sealing strap being longer than a perimeter of the duct, and

cutting the divisible extensions to adapt the length of the sealing strap as a function of said perimeter.