Intravascular ventriculocoronary bypass via a septal passageway

• US 6,976,990 B2
• Filed: 01/25/2001
• Issued: 12/20/2005
• Est. Priority Date: 01/25/2001
• Status: Expired due to Fees

• Current Assignee: Horizon Technology Funding Co. LLC (Horizon Technology Finance Management LLC)
• Original Assignee: Percardia, Inc.
• Inventors: Mowry, David H.
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): Ragonese, Andrea M.
• Application Number:
  US09/769,746
• Publication Number:
  US 20020099404A1
• Time in Patent Office: 1,790 Days
• Field of Search: 606/1, 606/7, 606/108, 606/194, 606/195, 128/897, 128/898, 600 16- 18, 604/96.01, 604/104, 623/1, 623/1.11, 623/11.11
• US Class Current: 606/194
• 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: A61F 2/2493 Transmyocardial revascularisation [TMR] devices

Abstract

A method for performing a bypass procedure utilizes the patient'"'"'s vascular system for accessing or reaching a desired location within the patient'"'"'s body. The method may also provide a direct flow path from a heart chamber to a coronary vessel via a septal passageway.

Claims

1. A method for supplementing a flow of blood to a portion of the cardiovascular system of a patient;

the method comprising;

inserting a catheter device into the vasculature of the patient and advancing the catheter device to a first location within a first coronary vessel within the cardiovascular system; and

forming a blood flow path from a heart chamber directly to the first coronary vessel via a preexisting natural septal opening extending into the heart wall between the heart chamber and the first coronary vessel.

2. The method according to claim 1, wherein forming a blood flow path from the heart chamber directly to the first coronary vessel includes placing a conduit in a heart wall between the heart chamber and the first coronary vessel.

3. The method according to claim 2, wherein placing a conduit in a heart wall between the heart chamber and the first coronary vessel includes placing a conduit in the preexisting natural septal opening.

4. The method according to claim 1, wherein the first coronary vessel is a coronary artery.

5. The method according to claim 4, wherein the coronary artery is a left anterior descending coronary artery.

6. The method according to claim 1, further comprising

advancing the catheter device to a second location within a second coronary vessel within the cardiovascular system;

and

guiding the catheter device through an interstitial passageway formed between the first location and the second location,

wherein the first location within the first coronary vessel is distal to an obstruction in the first coronary vessel.

7. The method according to claim 6, wherein the interstitial passageway is formed through a wall of the first coronary vessel and through a wall of the second coronary vessel between the first and second locations.

8. The method according to claim 6, further comprising occluding the interstitial passageway between the first coronary vessel and the second coronary vessel to prevent blood flow through the interstitial passageway.

9. The method according to claim 8, wherein occluding the interstitial passageway includes deploying an embolization substance at a wall of the first vessel and at a wall of the second vessel.

10. The method according to claim 8, wherein occluding the interstitial passageway includes deploying an embolization device within the interstitial passageway.

11. The method according to claim 6, wherein the second coronary vessel is a coronary vein proximate to the coronary artery.

12. The method according to claim 11, wherein the second coronary vessel is a great cardiac vein.

13. The method according to claim 1, further comprising

guiding the catheter device through a first interstitial passageway formed between the first location and a second location within a second coronary vessel within the cardiovascular system;

advancing the catheter device to a third location within the second coronary vessel; and

guiding the catheter device through a second interstitial passageway formed between the third location and a fourth location within the first coronary vessel, the fourth location being distal to an obstruction in the first coronary vessel.

14. The method according to claim 13, wherein:

the first interstitial passageway is formed through a wall of the first coronary vessel and through a wall of the second coronary vessel between the first and second locations; and

the second interstitial passageway is formed through a wall of the second coronary vessel and through a wall of the first coronary vessel between the third and fourth locations.

15. The method according to claim 13, further comprising occluding the first and second interstitial passageways between the first coronary vessel and the second coronary vessel to prevent blood flow through either of the first or second passageways.

16. The method according to claim 15, wherein occluding the first and second interstitial passageways includes deploying an embolization device within each of the first and second passageways.

17. The method according to claim 15, wherein occluding the first and second interstitial passageways includes:

deploying an embolization substance at a wall of the first coronary vessel and at a wall of the second coronary vessel at the first interstitial passageway; and

deploying an embolization substance at a wall of the first coronary vessel and at a wall of the second coronary vessel at the second interstitial passageway.

18. The method according to claim 13, wherein the first coronary vessel is a coronary artery.

19. The method according to claim 18, wherein the second coronary vessel is a coronary vein proximate to the coronary artery.

20. The method according to claim 19, wherein the first coronary vessel is a great cardiac vein.

21. The method according to claim 18, wherein the coronary artery is a left anterior descending coronary artery.

22. A method for supplementing a flow of blood to a portion of the cardiovascular system of a patient, the method comprising:

(a) inserting a catheter device into the vasculature of the patient and advancing the catheter device to a first location within a coronary vessel within the cardiovascular system, the first location being proximate to an obstruction within the coronary vessel;

(b) advancing the catheter device through the obstruction to a second position distal to the obstruction;

(c) guiding the catheter device through an interstitial passageway extending into a heart wall between a heart chamber and the coronary vessel; and

(d) placing a conduit in the interstitial passageway extending into the heart wall between the heart chamber and the coronary vessel,

wherein the interstitial passageway includes a preexisting natural septal opening extending into the heart wall between the heart chamber and the coronary vessel.

23. The method according to claim 22, wherein the coronary vessel is a coronary artery.

24. The method according to claim 22 further comprising distending the obstruction within the coronary vessel.

25. The method according to claim 24, wherein distending the obstruction within the coronary vessel includes inflating a balloon at the obstruction within the coronary vessel.