BLOOD PERFUSION DEVICE

• US 20100168837A1
• Filed: 03/10/2010
• Published: 07/01/2010
• Est. Priority Date: 11/30/2007
• Status: Active Grant

• Current Assignee: Cook Medical Technologies, LLC (Cook Group Incorporated)
• Original Assignee: Cook Incorporated (Cook Group Incorporated)
• Inventors: Magnuson, Mark A., Paul, Ram H. JR.
• Granted Patent: US 9,289,581 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61M 2025/0024 Expandable catheters or sheaths
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 2025/0188 having slitted or breakaway lumens
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

Medical devices, as well as methods of treatment and manufacturing such devices, are provided for applying vascular therapy locally within the body vessel. The medical devices include an expandable tubular frame and a sleeve or graft material. The medical devices can be used for local delivery of a therapeutic agent within a body vessel or a tamponade for a lacerated body vessel, while simultaneously allowing perfusion of fluid or blood flow distal of the implanted medical device. The tubular frame of the medical device may have a proximal non-expanding portion and a distal self-expanding support structure. The self-expanding support structure can expand radially outward to urge the graft material to contact the wall of the body vessel. In the expanded configuration, a portion of the device allows fluid flow to continue while the sleeve is against the body vessel wall.

Claims

1. A blood perfusion device, comprising:

a generally cylindrical self-expanding support structure extending from a proximal end to a distal end;

a non-expanding portion disposed proximally of said self-expanding support structure;

a series of connectors extending from said proximal end of said self-expanding support structure to said non-expanding portion, said connectors allowing said self-expanding support structure to expand while retaining said self-expanding support structure to said non-expanding portion;

a graft material disposed on at least a portion of said self-expanding support structure;

wherein said distal end of said self-expanding support structure forms an unobstructed opening between an inner lumen of said self-expanding support structure and an exterior of the blood perfusion device.

2. The blood perfusion device according to claim 1, wherein said connectors are integrally formed with said self-expanding support structure.

3. The blood perfusion device according to claim 2, wherein said non-expanding portion comprises a tube, said connectors being integrally formed with said tube.

4. The blood perfusion device according to claim 3, wherein said non-expanding portion comprises a tube with radial openings extending therethrough, said non-expanding portion being connected to a catheter by bonding said catheter to said non-expanding portion at least partially through said radial openings.

5. The blood perfusion device according to claim 1, wherein said non-expanding portion is rigidly connected to a catheter.

6. The blood perfusion device according to claim 1, wherein said self-expanding support structure comprises longitudinal members that extend along substantially the entire length of said self-expanding support structure.

7. The blood perfusion device according to claim 6, wherein said self-expanding support structure comprises angular struts connected to one of said longitudinal members at one end and to another of said longitudinal members at another end.

8. The blood perfusion device according to claim 7, wherein said angular struts form a series of zig-zag rings from said proximal end to said distal end of said self-expanding support structure.

9. The blood perfusion device according to claim 8, wherein said connectors are integrally formed with said longitudinal members.

10. The blood perfusion device according to claim 9, wherein said self-expanding support structure consists of no other support structures in addition to said longitudinal members and said angular struts.

11. The blood perfusion device according to claim 9, wherein said longitudinal members extend helically from said proximal end to said distal end of said self-expanding support structure.

12. The blood perfusion device according to claim 9, wherein a first of said angular struts located closest to said non-expanding portion is disposed a distance from said non-expanding portion such that when said self-expanding support structure is fully expanded, said first angular strut does not obstruct said inner lumen of said self-expanding support structure.

13. The blood perfusion device according to claim 9, wherein said inner lumen of said self-expanding support structure is only obstructed at said proximal end by said non-expanding portion, a catheter connected to said non-expanding portion and said connectors.

14. The blood perfusion device according to claim 1, wherein said longitudinal members extend helically from said proximal end to said distal end of said self-expanding support structure at a rate of about 1 turn per 20 cm of length.

15. The blood perfusion device according to claim 1, wherein said self-expanding support structure comprises longitudinal members that extend along substantially the entire length of the self-expanding support structure, said connectors being integrally formed with said longitudinal members, and said non-expanding portion comprises a tube, said connectors being integrally formed with said tube.

16. The blood perfusion device according to claim 15, wherein said non-expanding portion is rigidly connected to a catheter, said self-expanding support structure comprising angular struts connected to one of said longitudinal members at one end and to another of said longitudinal members at another end, a first of said angular struts located closest to said non-expanding portion is disposed a distance from said non-expanding portion such that when said self-expanding support structure is fully expanded, said first angular strut does not obstruct said inner lumen of said self-expanding support structure, wherein said self-expanding support structure consists of no other support structures in addition to said longitudinal members and said angular struts, said longitudinal members extending helically from said proximal end to said distal end of said self-expanding support structure, said inner lumen of said self-expanding support structure only being obstructed at said proximal end by said non-expanding portion, said catheter and said connectors.

17. A blood perfusion device, comprising:

a catheter;

a non-expanding portion comprising a tube rigidly connected to said catheter;

a generally cylindrical self-expanding support structure disposed distally of said non-expanding portion and extending from a proximal end to a distal end, said self-expanding support structure comprising longitudinal members extending along substantially the entire length of said self-expanding support structure and angular struts connected to one of said longitudinal members at one end and to another of said longitudinal members at another end, said angular struts forming a series of zig-zag rings from said proximal end to said distal end of said self-expanding support structure;

a series of connectors extending from said proximal end of said self-expanding support structure to said non-expanding portion, said connectors being integrally formed with said self-expanding support structure, said connectors allowing said self-expanding support structure to expand while retaining said self-expanding support structure to said non-expanding portion;

a graft material disposed on at least a portion of said self-expanding support structure;

wherein a first of said angular struts located closest to said non-expanding portion is disposed a distance from said non-expanding portion such that when said self-expanding support structure is fully expanded, said first angular strut does not obstruct said inner lumen of said self-expanding support structure, said inner lumen of said self-expanding support structure only being obstructed at said proximal end by said non-expanding portion, said catheter and said connectors, and said distal end of said self-expanding support structure forming an unobstructed opening between said inner lumen of said self-expanding support structure and an exterior of the blood perfusion device.

18. The blood perfusion device according to claim 17, wherein said connectors are integrally formed with said longitudinal members, said self-expanding support structure consisting of no other support structures in addition to said longitudinal members and said angular struts.

19. The blood perfusion device according to claim 18, wherein said longitudinal members extend helically from said proximal end to said distal end of said self-expanding support structure.

20. The blood perfusion device according to claim 19, wherein said connectors are integrally formed with said non-expanding portion, said tube of said non-expanding portion comprising radial openings extending therethrough, said non-expanding portion being connected to said catheter by bonding said catheter to said non-expanding portion at least partially through said radial openings.