Delivering a conduit into a heart wall to place a coronary vessel in communication with a heart chamber and removing tissue from the vessel or heart wall to facilitate such communication

• US 7,993,356 B2
• Filed: 09/29/2006
• Issued: 08/09/2011
• Est. Priority Date: 02/13/1998
• Status: Expired due to Fees

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Laroya, Gilbert S., Foley, Mark J., Gittings, Darin C., Rapacki, Alan R.
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/540,703
• Publication Number:
  US 20070233225A1
• Time in Patent Office: 1,775 Days
• Field of Search: 623/2.11, 623/1.11, 604/95, 604/137, 606/153, 606/194
• US Class Current: 606/153
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• 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
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/2493 Transmyocardial revascularisation [TMR] devices
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• 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 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/30079 magnetic
• CPC Class Codes: A61F 2002/30617 Visible markings for adjusting, locating or measuring
• CPC Class Codes: A61F 2210/009 magnetic
• CPC Class Codes: A61F 2250/0097 Visible markings, e.g. indicia

Abstract

Devices and methods for delivering conduits into the wall of a patient'"'"'s heart to communicate a coronary vessel with a heart chamber. The devices are passed through the coronary vessel and the heart wall to place the conduit and establish a blood flow path between the vessel and the heart chamber. Additional devices and methods are provided for removing tissue from a coronary vessel or the heart wall to establish a flow path between the coronary vessel in communication with the heart chamber.

Claims

1. A device for delivering a conduit into the wall of a patient'"'"'s heart to place the conduit in communication with a heart chamber, the device comprising:

a support member having a length, a proximal end and a distal end;

a conduit supported by the support member;

a sheath overlying at least a portion of the conduit, the sheath being movable to selectively expose the portion of the conduit covered by the sheath;

wherein the sheath is moved to expose said portion of the conduit upon positioning the support member and conduit at a desired location within the wall of the heart;

wherein the conduit comprises a rigid and non-expandable tubular member, and the sheath comprises a sleeve overlying the conduit and;

wherein the conduit has two open ends and a plurality of openings disposed between the two ends.

2. The device of claim 1, wherein the support member is substantially straight and rigid over the length and has a sharpened tip for forming an opening in the heart wall.

3. The device of claim 2, wherein the support member has a tapered portion for dilating the opening formed by the distal end of the shaft.

4. The device of claim 2, wherein the support member comprises a hollow member that removably receives a dilator having the sharpened tip for forming an opening in the heart wall.

5. The device of claim 1, further comprising a positioning member that provides a visual indication of the position of the conduit with respect to the heart wall.

6. The device of claim 5, wherein the positioning member comprises markings.

7. The device of claim 1 further comprising means for determining the position of the conduit with respect to the heart wall.