Cardiac valve procedure methods and devices

• US 8,951,280 B2
• Filed: 06/09/2010
• Issued: 02/10/2015
• Est. Priority Date: 11/09/2000
• Status: Expired due to Fees

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Cohn, William E., Lambrecht, Gregory H., Liddicoat, John R., Moore, Robert Kevin, Streeter, Richard B., Davenport, Todd F.
• Primary Examiner(s): Woo, Julian W
• Application Number:
  US12/797,283
• Publication Number:
  US 20100249921A1
• Time in Patent Office: 1,707 Days
• Field of Search: 623 124- 126, 623/2.1, 623 212- 219, 623/1.11, 623/1.12, 606/194, 606/200, 606/127
• US Class Current: 606/200
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/0059 temporary

Abstract

Devices and methods for performing intravascular procedures without cardiac bypass include embodiments of temporary filter devices, temporary valves, and prosthetic valves. The temporary filter devices have a cannula which provides access for surgical tools for effecting repair of cardiac valves. The cannula may have filters which prevent embolitic material from entering the coronary arteries and aorta. The valve devices may also have a cannula for insertion of the valve into the aorta. The valve devices expand in the aorta to occupy the entire flow path of the vessel and operate to prevent blood flow and to permit flow through the valve. The prosthetic valves include valve fixation devices which secure the prosthetic valve to the wall of the vessel. The prosthetic valves are introduced into the vascular system in a compressed state, advanced to the site of implantation, and expanded and secured to the vessel wall.

Claims

1. A method for enabling performance of an operation on a cardiac valve of a heart while the heart is beating, the method comprising:

providing a valved filter device comprising a valve, a filter and a circumferential outer edge;

placing the valved filter device in a flow path of a blood vessel downstream from the cardiac valve while the heart is beating;

moving the valved filter device to a deployed configuration where the outer edge of the valve contacts an interior wall of the vessel such that the valve is operative to effect greater antegrade flow than retrograde flow through the vessel when the valved filter device is in the deployed configuration while maintaining contact between the outer edge and the interior wall of the vessel, and the filter is operative to restrict the passage of emboli while allowing blood to flow through the vessel.

2. The method of claim 1, wherein the valve of the device is configured to allow natural antegrade blood flow during a systolic phase of cardiac rhythm.

3. The method of claim 2, wherein the valve of the device is configured to obstruct retrograde blood flow during a diastolic phase of cardiac rhythm.

4. A method for performing an operation on a cardiac valve of a heart while the heart is beating, the method comprising the steps of:

providing a valved filter device comprising a valve, a filter and a circumferential outer edge;

positioning a valved filter device in a flow path of a blood vessel downstream from the cardiac valve while the heart is beating;

moving the valved filter device to a deployed configuration where the outer edge of the valve contacts an interior wall of the vessel such that the valve is operative to effect greater antegrade flow than retrograde flow through the vessel when the valved filter device is the deployed configuration while maintaining contact between the outer edge of the valve and the interior wall of the vessel;

resecting at least a portion of the cardiac valve while the heart continues to beat; and

affixing at least one prosthetic valve at or downstream from the resected cardiac valve.

5. The method of claim 4, wherein the valve of the device is configured to allow natural antegrade blood flow during a systolic phase of cardiac rhythm.

6. The method of claim 5, wherein the valve of the device is configured to obstruct retrograde blood flow during a diastolic phase of cardiac rhythm.

7. A method for enabling performance of an operation on a cardiac valve of a heart while the heart is beating, the method comprising:

providing a valved filter device comprising a valve, a filter and a circumferential outer edge;

placing a valved filter device in a flow path of a blood vessel of the cardiac valve while the heart is beating;

moving the valved filter device to a deployed configuration where the outer edge of the valve contacts an interior wall of the vessel such that the valve is operative to effect greater antegrade flow than retrograde flow through the vessel when the valved filter device is in the deployed configuration while maintaining contact between the outer edge of the valve and the interior wall of the vessel, and the filter is operative to restrict the passage of emboli while allowing blood to flow through the vessel.

8. The method of claim 7, wherein the valve of the device is configured to allow natural antegrade blood flow during a systolic phase of cardiac rhythm.

9. The method of claim 8, wherein the valve of the device is configured to obstruct retrograde blood flow during a diastolic phase of cardiac rhythm.

10. A method for performing an operation on a cardiac valve of a heart while the heart is beating, the method comprising the steps of:

providing a valved filter device comprising a valve, a filter and a circumferential outer edge;

positioning a valved filter device in a flow path of a blood vessel downstream from the cardiac valve while the heart is beating;

moving the valved filter device to a deployed configuration where the outer edge of the valve contacts an interior wall of the vessel such that the valve is operative to effect greater antegrade flow than retrograde flow through the vessel when the valved filter device is in the deployed configuration while maintaining contact between the outer edge of the valve and the interior wall of the vessel;

resecting or disrupting at least a portion of the cardiac valve while the heart continues to beat; and

affixing at least one prosthetic valve at, upstream or downstream from the resected cardiac valve.

11. The method of claim 10, wherein the valve of the device is configured to allow natural antegrade blood flow during a systolic phase of cardiac rhythm and obstruct retrograde blood flow during a diastolic phase of cardiac rhythm.