Method to deliver blood from a heart chamber to vessel

• US 20050228334A1
• Filed: 05/31/2005
• Published: 10/13/2005
• Est. Priority Date: 08/13/1996
• Status: Abandoned Application

• Current Assignee: WILK Patent Development Corporation
• Original Assignee: Percardia, Inc.
• Inventors: Knudson, Mark B., Giese, William L.
• Application Number:
  US11/139,674
• Publication Number:
  US 20050228334A1
• Time in Patent Office: Days
• US Class Current: 604/8
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12131 characterised by the type of occluding device
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00247 Making holes in the wall of the heart, e.g. laser Myocardial revascularization
• CPC Class Codes: A61B 2017/1107 for blood vessels
• CPC Class Codes: A61B 2017/1135 End-to-side connections, e.g. T- or Y-connections Y-shaped blood vessel prostheses A61F2002/065
• CPC Class Codes: A61B 2017/12127 Double occlusion, e.g. for creating blood-free anastomosis site
• CPC Class Codes: A61B 2018/00392 Transmyocardial revascularisation
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices
• CPC Class Codes: A61F 2/856 Single tubular stent with a side portal passage
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/061 : provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/065 : Y-shaped blood vessels
• CPC Class Codes: A61F 2002/068 : Modifying the blood flow model, e.g. by diffuser or deflector
• CPC Class Codes: A61F 2002/821 : Ostial stents
• CPC Class Codes: A61F 2240/008 : Means for testing implantable prostheses
• CPC Class Codes: Y10S 623/903 : Blood vessel

Abstract

A method for revascularizing a coronary vessel with a conduit through the heart wall having a diameter transition in the myocardial leg, wherein blood flow is in the direction of transition from larger to smaller diameter. A method for revascularizing a coronary vessel using an implant with a myocardial leg having a maximum cross-sectional area proximate a first end, and inserting the first end through the myocardium into a heart chamber so that the implant directs blood flow into the coronary vessel. A transmyocardial implant with a myocardial leg including point of minimum diameter and a first end with a larger diameter, and a vessel leg in fluid communication with the myocardial leg.

Claims

1-17. -17. (canceled)

18. A method for supplementing a flow of blood to a coronary vessel, the method comprising:

placing a conduit in a heart wall between a heart chamber and the coronary vessel so that a blood flow path directly between the heart chamber and a posterior of the coronary vessel remains open during both systole and diastole.

19. The method of claim 18, wherein the blood flow path is at a site in the coronary vessel positioned between an obstruction in the coronary vessel and tissue of the heart to be supplied with blood by the coronary vessel.

20. The method of claim 18, wherein the conduit includes a portion placed into the coronary vessel.

21. The method of claim 18, wherein the conduit extends completely through the heart wall.

22. The method of claim 18, wherein the conduit is valveless.

23. The method of claim 18, wherein blood flow path is at a site in the coronary vessel between an obstruction in the coronary vessel and tissue of the heart.

24. The method of claim 23, wherein the obstruction is a natural occlusion.

25. The method of claim 18, wherein the heart chamber is a left ventricle.

26. The method of claim 18, wherein the coronary vessel is a coronary artery.