Corkscrew reinforced left ventricle to coronary artery channel

• US 7,033,372 B1
• Filed: 08/03/2000
• Issued: 04/25/2006
• Est. Priority Date: 08/04/1999
• Status: Expired due to Fees

• Current Assignee: Horizon Technology Funding Co. LLC (Horizon Technology Finance Management LLC)
• Original Assignee: Percardia, Inc.
• Inventors: Cahalan, Patrick
• Primary Examiner(s): Bui, Vy Q.
• Application Number:
  US10/048,408
• Time in Patent Office: 2,091 Days
• Field of Search: 606/185, 606/186, 606/213, 606/219, 606/220, 606/200, 606/167, 623 11- 12, 128/898
• US Class Current: 606/185
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• 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 2018/00392 Transmyocardial revascularisation

Abstract

A coil is screwed into the heart wall HW between the left ventricle and coronary artery, followed by forming of a channel with laser, plasma, electrical, or mechanical device therethrough.

Claims

1. A method for forming a channel between a heart chamber and a coronary vessel through body tissue, comprising:

screwing a coil into the body tissue between the heart chamber and coronary vessel; and

forming a channel within the coil in the body tissue that connects the heart chamber to the coronary vessel so as to place the heart chamber and the coronary vessel in flow communication with each other, wherein the channel does not include a naturally occurring blood containing anatomical conduit,

wherein the screwing of the coil into the body tissue is completed prior to the forming of the channel.

2. The method of claim 1, wherein the forming of the channel includes forming the channel via one of a laser device, a plasma ablation device, an electrical device, and a mechanical device.

3. The method of claim 1, wherein the heart chamber is a left ventricle and the body tissue is a heart wall.

4. The method of claim 3, wherein the coronary vessel is a coronary artery.

5. The method of claim 1, further comprising applying a biocompatible material to the channel.

6. The method of claim 1, further comprising screwing in the coil via a catheter.

7. A method for forming a channel between a first body lumen and a second body lumen through body tissue, comprising:

screwing a coil into the body tissue between the first and second body lumens; and

forming a channel in the body tissue that connects the first body lumen to the second body lumen, the body tissue defining a lumen of the channel,

wherein the coil is not within the lumen of the channel and the lumen of the channel is within the coil.

8. The method of claim 7, wherein the forming of the channel includes forming the channel via one of a laser device, a plasma ablation device, an electrical device, and a mechanical device.

9. The method of claim 7, wherein the first body lumen is a heart chamber, the second body lumen is a coronary vessel, and the body tissue is a heart wall.

10. The method of claim 9, wherein the heart chamber is a left ventricle and the coronary vessel is a coronary artery.

11. The method of claim 7, further comprising applying a biocompatible material to the channel.

12. The method of claim 7, further comprising screwing in the coil via a catheter.

13. The method of claim 7, wherein the screwing of the coil into the body tissue occurs prior to forming the channel.