DEVICE AND METHOD FOR MODIFYING THE SHAPE OF A BODY ORGAN

• US 20070055293A1
• Filed: 08/24/2006
• Published: 03/08/2007
• Est. Priority Date: 12/05/2001
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Kowalsky, Leonard, Adams, John, Beeson, Cruz, Reuter, David, Mathis, Mark, Alferness, Clifton
• Granted Patent: US 7,674,287 B2
• Time in Patent Office: Days
• US Class Current: 606/142
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/0059 temporary

Abstract

An intravascular support device includes a support or reshaper wire, a proximal anchor and a distal anchor. The support wire engages a vessel wall to change the shape of tissue adjacent the vessel in which the intravascular support is placed. The anchors and support wire are designed such that the vessel in which the support is placed remains open and can be accessed by other devices if necessary. The device provides a minimal metal surface area to blood flowing within the vessel to limit the creation of thrombosis. The anchors can be locked in place to secure the support within the vessel.

Claims

1. A method of modifying the shape of tissue adjacent to a lumen, the method comprising:

providing a device in a catheter, the device comprising a first anchor and the device further comprises a second anchor and a reshaper extending from the first anchor;

inserting a distal end of the catheter into a lumen; and

deploying the device from the distal end of the catheter into the lumen, the deploying step comprising;

expanding the first anchor to contact a lumen wall, the anchor expanding from a first configuration to a second configuration such that the anchor'"'"'s diameter perpendicular to the central axis of the lumen in the second configuration is at least 50% greater than the anchor'"'"'s diameter perpendicular to the central axis of the lumen in the first configuration;

placing the reshaper in contact with the lumen wall to modify the shape of tissue adjacent to the lumen wall;

expanding the second anchor from a first configuration to a second configuration such that the anchor'"'"'s diameter perpendicular to the central axis of the lumen in the second configuration is at least 100% greater than the anchor'"'"'s diameter perpendicular to the central axis of the lumen in the first configuration; and

locking the second anchor after the step of expanding the second anchor.

3. The device of claim 1 wherein the reshaper is adapted to contact the lumen wall when the device is deployed in the lumen.

4. The device of claim 1 wherein the device is adapted to modify the shape of tissue adjacent to the lumen when a proximally-directed force is applied to the first anchor through the reshaper.

5. The device of claim 1 wherein the first anchor is further adapted to be recaptured by a catheter after being deployed from the catheter.

6. The device of claim 5 wherein the first anchor is adapted to change shape to fit within the catheter in response to a recapture force applied to the anchor.

7. The device of claim 6 wherein the recapture force is less than 20 lbs.

2. A device for modifying the shape of tissue adjacent to a lumen, the device comprising:

first and second anchors, each adapted to securely contact a lumen wall when the device is deployed in a lumen wherein the first and second anchors are adapted to expand from a first configuration to a second configuration after being deployed from a catheter;

a reshaper extending proximally from the first anchor to the second anchor and adapted to contact the lumen wall when the device is deployed in the lumen to modify the shape of tissue adjacent to the lumen wall;

and a lock adapted to resist the return of the first anchor from the second configuration to the first configuration;

the first and second anchors and the reshaper providing metal coverage within the lumen of less than 30%.

8. A method of modifying the shape of tissue adjacent to a lumen, the method comprising:

providing a device in a catheter, the device comprising first and second anchors and a reshaper extending from the first anchor to the second anchor;

inserting a distal end of the catheter into a lumen;

deploying the device from the distal end of the catheter into the lumen, the deploying step comprising;

expanding the first anchor to contact a wall of the lumen;

placing the reshaper in contact with the lumen wall to modify the shape of tissue adjacent to the lumen wall;

expanding the second anchor;

the first and second anchors and the reshaper providing metal coverage within the lumen of less than 30%; and

locking the first and second anchors.

9. The method of claim 8 wherein the placing step comprises:

applying a proximally-directed force to the first anchor and the reshaper.