Retainer device for mitral valve leaflets
First Claim
1. A system for treating mitral valve regurgitation in a heart comprising:
- a delivery catheter;
a holding device insertable within the catheter, the holding device comprising first and second arm portions and a central anchoring portion, wherein the holding device is positionable in a catheter delivery configuration, and in a deployment configuration, and when the device is deployed from the delivery catheter the arm portions assume a hook-shaped configuration, contact an anterior and a posterior leaflet of the mitral valve, and hold the leaflets in proximity to each other to reduce regurgitation of blood through the mitral valve.
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Accused Products
Abstract
A holding device for treating mitral valve regurgitation includes an anchoring portion and flexible arm portions. Upon deployment in the mitral valve, the arm portions assume a hook-shaped configuration and hold the leaflets in proximity to each other. One embodiment of the invention includes a method for preloading the holding device in a delivery catheter and deploying the device through the transverse axis of the mitral valve, allowing the arm portions of the holding device to grasp the mitral valve leaflets and hold them in proximity to each other, and thereby reduce both the cross sectional area of the mitral valve and regurgitation of blood through the valve.
261 Citations
20 Claims
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1. A system for treating mitral valve regurgitation in a heart comprising:
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a delivery catheter;
a holding device insertable within the catheter, the holding device comprising first and second arm portions and a central anchoring portion, wherein the holding device is positionable in a catheter delivery configuration, and in a deployment configuration, and when the device is deployed from the delivery catheter the arm portions assume a hook-shaped configuration, contact an anterior and a posterior leaflet of the mitral valve, and hold the leaflets in proximity to each other to reduce regurgitation of blood through the mitral valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A holding device for treating mitral valve regurgitation in a heart comprising:
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at least first and second arm portions; and
a central anchoring portion, wherein the holding device is positionable in a catheter delivery configuration and a deployment configuration and when the device is deployed from the delivery catheter the arm portions assume a hook-shaped configuration, contact an anterior and a posterior leaflet of the mitral valve, and hold the leaflets in proximity to each other to reduce regurgitation of blood through the mitral valve. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of treating mitral valve regurgitation, the method comprising:
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providing a holding device including at least two arm portions flexibly extending from a central anchoring portion;
preloading the holding device in a catheter delivery configuration into a lumen of a delivery catheter;
advancing the delivery catheter through the vascular system and into the left atrium;
positioning the distal tip of the catheter in a transverse axis of the mitral valve leaflets;
deploying the holding device from the catheter and allowing the arm portions to assume a hooked-shape;
contacting the leaflets with the hooked shaped arm portions; and
drawing the leaflets in proximity to each other. - View Dependent Claims (19, 20)
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Specification