Tubular endoprosthesis comprising a deformable collar, and operating kit for its implantation

• US 20020156517A1
• Filed: 03/21/2002
• Published: 10/24/2002
• Est. Priority Date: 03/23/2001
• Status: Active Grant

• Current Assignee: Laboratories Perouse
• Original Assignee: Laboratories Perouse
• Inventors: Perouse, Eric Paul
• Granted Patent: US 6,827,736 B2
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires

Abstract

The tubular endoprosthesis (10) comprises a flexible tubular skirt (12) designed to channel a body fluid. It comprises a collar (14) for connection of said skirt (12) through a lateral wall (110) of a tubular conduit (108). The connection collar (14) is initially joined to one end of said skirt (12) and has, at its periphery, elements (34) for securing it to said wall (110). The securing elements (34) are deformable between an initial docking position and a final connection position.

Claims

1. Tubular endoprosthesis (10) comprising a flexible tubular skirt (12) designed to channel a body fluid, characterized in that it comprises a collar (14) for connection of said skirt (12) through a lateral wall (110) of a tubular conduit (108), which connection collar (14) is initially joined to one end of said skirt (12) and has, at its periphery, elements (34) for securing it to said wall (110), which securing elements (34) are deformable between an initial docking position and a final connection position.

2. Tubular endoprosthesis (10) according to claim 1, characterized in that said securing elements (34) are designed to bear against a face of the wall (110) in their final connection position.

3. Tubular endoprosthesis (10) according to either one of the preceding claims, characterized in that said securing elements (34) are elements which are plastically deformable from their initial docking position to their final connection position.

4. Tubular endoprosthesis (10) according to any one of the preceding claims, characterized in that said securing elements (34) are elements with centrifugal radial expansion from their initial docking position to their final connection position.

5. Tubular endoprosthesis (10) according to claim 4, characterized in that each securing element comprises an arm (34) which has two consecutive segments (44) joined to one another via a region of articulation (46), and in that each arm (34) is deformable from an initial docking position, in which the two segments (44) are spaced apart and extend substantially along a generatrix of said endoprosthesis (10), to a final connection position in which the two segments (44) are folded in towards one another.

6. Tubular endoprosthesis (10) according to any one of the preceding claims, characterized in that said collar (14) has at least two continuous rings (38, 40) which are centred on the axis of the endoprosthesis and to which each of the securing elements (34) is joined, and in that said rings (38, 40) are displaceable axially between a spaced-apart position, in which the securing elements (34) are in their initial docking position, and a closed-together position in which the securing elements (34) are in their final connection position.

7. Tubular endoprosthesis (10) according to any one of the preceding claims, characterized in that said connection collar (14) has plastically deformable bridges (36) designed for radial expansion of said connection ring (14) from a first configuration, in which the connection collar (14) has an initial diameter, to a second configuration in which the connection collar (14) has a diameter greater than its initial diameter.

8. Tubular endoprosthesis according to claim 7, characterized in that said plastically deformable bridges (36) each have a general arch shape (56) and extend along the periphery of the connection collar (14), which bridges (36) are deformable from an initial position, in which each arch (56) is closed, the connection collar (14) being in its first configuration, and a final position in which each arch (56) is opened, the connection collar (14) being in its second configuration.

9. Tubular endoprosthesis according to any one of the preceding claims, characterized in that the connection collar (14) comprises, axially, first and second successive crowns (30, 32) which continue said tubular skirt (12), each crown (30, 32) having securing elements (34), the elements of the first crown (30) being designed to cooperate with the inner face of the wall (110) of the tubular conduit (108), and the elements (34) of the second crown (32) being designed to cooperate with the outer face of the wall (110) of the tubular conduit (108).

10. Operating kit for celioscopic surgery, comprising an endoprosthesis according to any one of the preceding claims, a filiform pusher (22) designed to cooperate with said connection collar (14), and a filiform member (20) for retention of said connection collar (14).

11. Kit according to claim 10, characterized in that it additionally comprises a toroidal inflatable balloon (130) with radial expansion.

12. Kit according to either one of claims 10 and 11, characterized in that it additionally comprises a first endoprosthesis (108) intended to form said tubular conduit to which the tubular endoprosthesis (10) is secured.

13. Bifurcated bypass prosthesis comprising a first endoprosthesis (108) to which an endoprosthesis according to any one of claims 1 to 9 is connected.