DEVICE FOR PLACEMENT IN THE TRICUSPID ANNULUS
First Claim
1. A device for implantation at or near an annulus of a tricuspid valve comprising:
- at least one flexible blood flow control element having an expanded state with a convex shape sized to cover a portion of a natural tricuspid annulus 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 tricuspid annulus between an atrium and a ventricle, 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 tricuspid annulus when said curved support element is anchored to said tricuspid annulus, said blood flow control element configured to extend away from said curved support element in said expanded state toward said atrium such that said internal volume is inside an atrium during ventricle systole when said curved support element is anchored to said tricuspid 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
20 Claims
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1. A device for implantation at or near an annulus of a tricuspid 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 a portion of a natural tricuspid annulus 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 tricuspid annulus between an atrium and a ventricle, 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 tricuspid annulus when said curved support element is anchored to said tricuspid annulus, said blood flow control element configured to extend away from said curved support element in said expanded state toward said atrium such that said internal volume is inside an atrium during ventricle systole when said curved support element is anchored to said tricuspid annulus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16, 17, 18, 19, 20)
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12. A method of treating tricuspid regurgitation in a patient in need of treatment thereof comprising:
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percutaneously deploying a device into a tricuspid annulus of the patient; contacting a curved support element of the device to at least 45 degrees of the circumference of the tricuspid annulus; anchoring said support element to said tricuspid annulus; coupling a convex shaped blood flow control element to at least two points across the support element thereby extending the convex shaped blood flow control element across the tricuspid annulus; and temporarily storing regurgitating blood from a ventricle of the patient in an atrium of the patient in an inner volume of the convex shaped blood flow controlelement. - View Dependent Claims (10, 11, 13, 14)
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Specification