DEVICE FOR TREATING MITRAL VALVE REGURGITATION
First Claim
1. A device for implanting in a heart chamber to treat mitral valve regurgitation by reducing the lateral distance between the septum and the free wall of a the heart, the device comprising:
- an elongated tension member having a long axis with a distal end and a proximal end, the tension member being elastic along the long axis such that when a force is applied, the tension member stretches from a first length to a second length and when the force is removed the tension member returns to the first length;
a distal anchor member attached to the distal end of the tension member; and
a proximal anchor member.
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Accused Products
Abstract
A system for treating mitral valve regurgitation comprises tensioning device that can be deployed using a delivery catheter. The device includes tension member linking a proximal anchor and distal anchor. The device is constructed from a material having suitable elastic properties such that the device applies a constant tension force between the anchors, while stretching or flexing in response to a heartbeat when positioned across a chamber of a heart. The anchors may include a plurality of arms. In some embodiments, the arms may also flex in response to a heart beat. When positioned across the left ventricle of a heart, the device can reduce the lateral distance between the walls of the ventricle and thus allow better coaption of the mitral valve leaflets thereby reducing mitral regurgitation.
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Citations
18 Claims
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1. A device for implanting in a heart chamber to treat mitral valve regurgitation by reducing the lateral distance between the septum and the free wall of a the heart, the device comprising:
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an elongated tension member having a long axis with a distal end and a proximal end, the tension member being elastic along the long axis such that when a force is applied, the tension member stretches from a first length to a second length and when the force is removed the tension member returns to the first length;
a distal anchor member attached to the distal end of the tension member; and
a proximal anchor member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for implanting in a heart chamber to treat mitral valve regurgitation by reducing the lateral distance between the septum and the free wall of a the heart, the device comprising:
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an elongated tension member having a long axis with a distal end and a proximal end, the tension member being elastic along the long axis such that when a force is applied, the tension member stretches from a first length to a second length and when the force is removed the tension member returns to the first length;
a distal anchor member attached to the distal end of the tension member; and
a proximal anchor member attached to the proximal end of the tension member whereby, when the device is positioned across a chamber of a heart, the length of the tension member changes in response to a heartbeat. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A system for treating mitral valve regurgitation, comprising;
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a deliver catheter; and
a tensioning device received in the delivery catheter, the tensioning device including an elongated tension member having a long axis with a distal end and a proximal end, the tension member being elastic along the long axis such that when a force is applied, the tension member stretches from a first length to a second length and when the force is removed the tension member returns to the first length, a distal anchor member attached to the distal end of the tension member, and a proximal anchor member; and
whereby the length of the tension member changes in response to a heartbeat when the device is positioned across a chamber of a heart.
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Specification