Designs for left ventricular conduit

• US 6,290,728 B1
• Filed: 08/04/1999
• Issued: 09/18/2001
• 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: Griffin, Mark, Schmelter, Jay, Furnish, Simon, Wilk, Peter J., Hall, Todd A., Wolf, Scott J., Phelps, David Y., Furnish, Greg R.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US09/369,048
• Time in Patent Office: 776 Days
• Field of Search: 623/1.14, 623/1.16, 623/1.15, 623/23.7, 623/23.64, 623/194, 606/194, 606/108, 604/8
• 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 bypass conduit for use in a wall of a heart, comprising:

a hollow conduit having an interior and an exterior and adapted to be positioned in the heart wall between the coronary artery and a chamber in the heart, wherein the conduit has an attachment mechanism on at least one end adapted to anchor the conduit in place.

2. The device of claim 1, wherein the conduit is self-expandable.

3. The device of claim 1, wherein the conduit is expanded using an inflatable balloon.

4. The device of claim 1, wherein the chamber is the left ventricle.

5. The device of claim 1, wherein the attachment mechanism is selected from the group consisting of hooks, barbs, flanges, collars, suture holes, and expandable legs.

8. The device of claim 1, wherein the conduit is biodegradable.

9. The device of claim 1, wherein the conduit is bioabsorbable.

10. The device of claim 9, wherein the conduit is used to deliver pharmaceutical compounds directly into the heart wall.

11. The device of claim 1, wherein the attachment mechanism is adapted to anchor the conduit in the heart wall.

12. The device of claim 1, wherein the attachment mechanism is adapted to anchor the conduit in the coronary artery.

6. A bypass conduit for use in a wall of a heart, comprising:

a hollow conduit having a plurality of circular rings, an interior, and an exterior and adapted to be positioned in the heart wall between the coronary artery and a chamber in the heart, wherein the conduit has an attachment mechanism on at least one end adapted to anchor the conduit in place.

7. The device of claim 6, wherein the rings are reversibly connected to one another.