Designs for left ventricular conduit

• US 6,610,100 B2
• Filed: 04/10/2001
• Issued: 08/26/2003
• Est. Priority Date: 09/10/1998
• Status: Expired due to Fees

• Current Assignee: Horizon Technology Funding Co. LLC (Horizon Technology Finance Management LLC)
• Original Assignee: Percardia, Inc.
• Inventors: Phelps, David Y., Furnish, Greg R., Hall, Todd A.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US09/829,449
• Publication Number:
  US 20010053932A1
• Time in Patent Office: 868 Days
• Field of Search: 623/23.7, 624/1.15, 604/8, 606/108
• US Class Current: 623/23.7
• CPC Class Codes: A61B 17/3207 Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61B 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices
• 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 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/94 Stents retaining their form, i.e. not being deformable, after placement in the predetermined place
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2002/91541 Adjacent bands are arranged out of phase
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/006 Y-shaped
• CPC Class Codes: A61F 2250/0067 Means for introducing or releasing pharmaceutical products into the body
• CPC Class Codes: Y10S 623/903 Blood vessel

Abstract

A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration.

Claims

1. A conduit for providing a passage in a heart wall between a heart chamber and a coronary vessel, comprising:

a plurality of units configured to be positioned within the heart wall, the plurality of units defining a lumen having a first end configured to be in flow communication with the heart chamber and a second end configured to be in flow communication with the coronary vessel when the plurality of units are positioned within the heart wall; and

means for securing the plurality of units to the heart wall.

2. The conduit of claim 1, wherein the means for securing includes a plurality of flanges.

3. The conduit of claim 2, wherein each of the plurality of units includes at least one of the plurality of flanges.

4. The conduit of claim 3, wherein each of the plurality of units includes at least one of the plurality of flanges on a circumference of each unit.

5. The conduit of claim 1, wherein the means for securing includes at least one flange having a first configuration for delivery to the heart wall and a second expanded configuration for insertion into the heart wall.

6. The conduit of claim 3, wherein the means for securing is adapted to have a first configuration for delivery to the heart wall and a second configuration for insertion into the heart wall.

7. The conduit of claim 6, wherein the second configuration is an expanded configuration.

8. The conduit of claim 3, wherein the plurality of units include rings.

9. The conduit of claim 3, wherein the plurality of units are connected.

10. The conduit of claim 3, wherein the plurality units are not connected.

11. The conduit of claim 3, further comprising a wire connecting the plurality of units.

12. The conduit of claim 3, further comprising a suture connecting the plurality of units.

13. The conduit of claim 3, further comprising a valve associated with the plurality of units.

14. A conduit for providing a passage in a heart wall between a heart chamber and a coronary vessel, comprising:

a plurality of units configured to be positioned within the heart wall, wherein each of the plurality of units has a first configuration for delivery to the heart wall and a second expanded configuration for securement in the heart wall.

15. The conduit of claim 14, wherein the plurality of units includes a plurality of flanges.

16. The conduit of claim 15, wherein each of the plurality of unit includes at least one of the plurality of flanges.

17. The conduit of claim 15, wherein each of the plurality of unit includes at least one of the plurality of flanges on a circumference of each unit.

18. The conduit of claim 14, wherein the plurality of units includes rings.

19. The conduit of claim 14, wherein the plurality of units are connected.

20. The conduit of claim 14, wherein the plurality units are not connected.

21. The conduit of claim 14, further comprising a wire connecting the plurality of units.

22. The conduit of comprising of claim 14, further comprising a suture connecting the plurality of units.

23. The conduit of claim 14, further comprising a valve associated with the plurality of units.

24. A conduit for providing a passage in a heart wall between a heart chamber and a coronary vessel, comprising:

a plurality of units configured to be positioned within the heart wall; and

means for securing the plurality of units to the heart wall,

wherein the plurality of units are not connected.

25. The conduit of claim 24, wherein the means for securing includes plurality of flanges.

26. The conduit of claim 25, wherein each of the plurality of units includes at least one of the plurality of flanges.

27. The conduit of claim 26, wherein each of the plurality of units includes at least one of the plurality of flanges on a circumference of each unit.

28. The conduit of claim 27, wherein the means for securing includes at least one flange having a first configuration for delivery to the heart wall and a second expanded configuration for insertion into the heart wall.

29. The conduit of claim 24, wherein the means for securing is adapted to have a first configuration for delivery to the heart wall and a second configuration for insertion into the heart wall.

30. The conduit of claim 29, wherein the second configuration is an expanded configuration.

31. The conduit of claim 24, wherein the plurality of units include rings.