Device for placement in the tricuspid annulus
First Claim
1. A device for implantation at or near an annulus of a heart valve comprising:
- at least one flexible blood flow control element having an expanded state with a convex shape sized to cover at least a portion of the annulus of the heart valve and said convex shape having an internal volume adapted to capture a volume of blood therein, anda curved support element configured to fit and be anchored to at least a portion of the annulus between an upstream chamber and a downstream chamber, said blood flow control element coupled to at least two points across said curved support element to extend said blood flow control element across said annulus when said curved support element is anchored to said annulus, said blood flow control element configured to extend away from said curved support element in said expanded state toward said upstream chamber such that said internal volume is at least partially inside an upstream chamber during downstream chamber systole when said curved support element is anchored to said natural annulus.
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Accused Products
Abstract
A device (200) for implantation in or near an annulus of a tricuspid valve comprising at least one blood flow control element (202) adapted to capture a volume of blood therein. Optionally or alternatively, the blood flow control element is adapted to allow at least some volume of blood (406) to regurgitate through the annulus during at least some part of systole. Optionally or alternatively, the device comprises a relatively rigid annulus with an arc length of less than 300 degrees. Optionally or alternatively, the relatively rigid annulus comprises a plurality of tissue fixation elements positioned along no more than 300 degrees of a circumference of the annulus, for example to avoid damaging conduction pathways between an atria and a chamber.
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Citations
22 Claims
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1. A device for implantation at or near an annulus of a heart valve comprising:
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at least one flexible blood flow control element having an expanded state with a convex shape sized to cover at least a portion of the annulus of the heart valve and said convex shape having an internal volume adapted to capture a volume of blood therein, and a curved support element configured to fit and be anchored to at least a portion of the annulus between an upstream chamber and a downstream chamber, said blood flow control element coupled to at least two points across said curved support element to extend said blood flow control element across said annulus when said curved support element is anchored to said annulus, said blood flow control element configured to extend away from said curved support element in said expanded state toward said upstream chamber such that said internal volume is at least partially inside an upstream chamber during downstream chamber systole when said curved support element is anchored to said natural annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of treating regurgitation in a heart valve of a patient in need of treatment thereof comprising:
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percutaneously deploying a device into a heart valve annulus of the patient; contacting a curved support element of the device to at least 45 degrees of the circumference of the heart valve annulus; anchoring said support element to said heart valve annulus; coupling a convex shapped blood flow control element to at least two points across the support element thereby extending the convex shaped blood flow control element across the heart valve annulus; and temporarily storing regurgitating blood from a downstream chamber of the patient in an upstream chamber of the patient in an inner volume of the convex shaped blood flow controlelement. - View Dependent Claims (19, 20, 21, 22)
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Specification