Device for treating a blood vessel and associated treatment kit

• US 20070100427A1
• Filed: 11/29/2006
• Published: 05/03/2007
• Est. Priority Date: 12/02/2005
• Status: Active Grant

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: Cormove
• Inventors: Perouse, Eric
• Granted Patent: US 7,927,363 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• 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 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9534 for repositioning of stents

Abstract

This device comprises a tubular endoprosthesis which can be radially deployed between a retracted state and an expanded state. It comprises an axially rigid support which has at least one retention opening. The device comprises at least one filamentary connection which comprises a region for clamping the endoprosthesis, at least partially surrounding the endoprosthesis, and a control region which is connected to the clamping region via the retention opening. The support is permanently fixed to the endoprosthesis.

Claims

1. Device for treating a blood circulation canal, of the type comprising:

a tubular endoprosthesis which can be radially deployed between a retracted state and an expanded state;

an axially rigid support which has at least one retention opening;

at least one filamentary connection which comprises a region for clamping the endoprosthesis, at least partially surrounding the endoprosthesis, and a control region which is connected to the clamping region via the retention opening;

wherein the support is permanently fixed to the endoprosthesis; and

wherein the rigid support and the tubular endoprosthesis are fixedly joined.

2. Device according to claim 1, wherein the endoprosthesis comprises a peripheral wall, the support being fixed at least at two points which are axially spaced from the peripheral wall.

3. Device according to claim 2, wherein the support is fixed continuously on the peripheral wall of the endoprosthesis, along a directrix of the peripheral wall.

4. Device according to claim 2, wherein the peripheral wall delimits internally a channel for passage of a fluid, the support being fixed to the peripheral wall at the outer side of the passage channel.

5. Device according to claim 1, wherein the support extends axially substantially over the entire length of the endoprosthesis.

6. Device according to claim 1, wherein the support delimits internally an aperture which opens in the or each passage opening and in at least one control opening which is spaced longitudinally from the or each passage opening.

7. Device according to claim 6, wherein the or each filamentary connection has a gripping end which protrudes from the support through the control opening, the gripping end forming a traction loop.

8. Device according to claim 7, wherein the control region comprises two strands which are connected to the traction loop and to two separate points of the clamping region.

9. Device according to claim 7, wherein it comprises at least two filamentary connections which comprise two clamping regions which are axially spaced on the endoprosthesis, the gripping ends of the two connections forming a traction loop common to the two connections.

10. Device according to claim 7, wherein it comprises at least two filamentary connections, the support delimiting a proximal control opening and a distal control opening, the gripping ends of the two connections protruding through the proximal control opening and the distal control opening, respectively.

11. Device according to claim 7, wherein the traction loop comprises a ring which is fixedly joined to the control region, the ring having a transverse extent which is greater than that of the control opening.

12. Device according to claim 1, wherein at least one filamentary connection is releasable.

13. Treatment kit, of the type comprising:

a device according to claim 1,

means for releasing and/or recovering the device, comprising;

a rigid rod which has a distal support surface for the device; and

means for traction of the or each filamentary connection which are capable of gripping the or each control region.

14. Kit according to claim 13, wherein the or each filamentary connection has a gripping end which forms a traction loop,

the traction means comprising, for engaging the gripping end, an elongate hook member which is mounted so as to be able to be moved in the rigid rod between a deployed position for engagement of the gripping end and a retracted position for traction of the gripping end.