Anchoring system for medical implant
First Claim
1. An implant for treating mitral valve insufficiency, comprising:
- a shape-changing member having a proximal end portion and a distal end portion, the shape-changing member having a first shape and a second shape;
a displaceable material disposed along the shape-changing member for maintaining the shape-changing member in the first shape, the displaceable material being configured to be displaced for allowing the shape-changing member to transition from the first shape to the second shape;
a proximal anchor coupled to the proximal end portion of the shape-changing member; and
a distal anchor coupled to the distal end portion of the shape-changing member;
wherein the proximal end portion of the shape-changing member overlaps with at least a portion of the proximal anchor and the distal end portion of the shape-changing member overlaps with at least a portion of the distal anchor.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the invention provide a medical implant, and method for deploying the same, configured for placement in a body lumen such as a coronary sinus, as may be desired to treat a regurgitant mitral valve. The implant includes a proximal anchor, a distal anchor, and an elongate bridge extending between the proximal and distal anchors. The anchors are configured to be delivered to a desired deployment site within the body lumen in a collapsed or contracted condition and then expanded to engage the walls of the body lumen. The bridge is preferably a shape-changing member configured to contract after delivery into the coronary sinus for applying a compressive force to the annulus of the mitral valve. The proximal and distal anchoring mechanisms preferably overlap the proximal and distal end portions of the bridge, thereby providing the implant with a longer bridge having greater contraction.
127 Citations
20 Claims
-
1. An implant for treating mitral valve insufficiency, comprising:
-
a shape-changing member having a proximal end portion and a distal end portion, the shape-changing member having a first shape and a second shape;
a displaceable material disposed along the shape-changing member for maintaining the shape-changing member in the first shape, the displaceable material being configured to be displaced for allowing the shape-changing member to transition from the first shape to the second shape;
a proximal anchor coupled to the proximal end portion of the shape-changing member; and
a distal anchor coupled to the distal end portion of the shape-changing member;
wherein the proximal end portion of the shape-changing member overlaps with at least a portion of the proximal anchor and the distal end portion of the shape-changing member overlaps with at least a portion of the distal anchor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A medical implant, comprising:
-
a proximal anchor configured for engagement with an inner wall of a coronary sinus when in a deployed position;
a distal anchor configured for engagement with an inner wall of a coronary sinus when in a deployed position; and
an elongate bridge extending between the proximal and distal anchors, the elongate bridge configured for applying a reshaping force along an annulus of a mitral valve;
wherein the proximal and distal anchors are capable of pivoting relative to the elongate bridge along at least one axis. - View Dependent Claims (17)
-
-
18. A medical implant for treating a mitral valve, comprising:
-
a proximal stent configured for engagement to an ostium of a coronary sinus when in an expanded condition;
a distal stent configured for engagement with an inner wall of a coronary sinus when in an expanded condition; and
an elongate bridge coupled to the proximal and distal stents, the elongate bridge formed of a shape-memory material and having a proximal end portion which overlaps with the proximal stent and a distal end portion which overlaps with the distal stent;
wherein the bridge is configured to contract after the proximal and distal stents are anchored within the coronary sinus such that tension in the bridge provides a reshaping force along an annulus of the mitral valve. - View Dependent Claims (19, 20)
-
Specification