Tethers for prosthetic mitral valve
First Claim
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1. An apparatus, comprising:
- a prosthetic heart valve including an expandable tubular stent body having a cuff and a leaflet assembly, at least three tether members each having a first end portion coupled to the expandable tubular stent body and a second end portion, the second end portion of the at least three tether members braided together at a coupling point to form a single braided anchoring tether extending from the coupling point,the single braided anchoring tether configured to extend through the heart and to be secured to an epicardial surface of the heart when the prosthetic heart valve is implanted within the heart.
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Abstract
This invention relates to the design and function of a single-tether compressible valve replacement prosthesis which can be deployed into a beating heart without extracorporeal circulation using a transcatheter delivery system. The design as discussed combats the process of wear on anchoring tethers over time by using a plurality of stent-attached, centering tethers, which are themselves attached to a single anchoring tether, which extends through the ventricle and is anchored to a securing device located on the epicardium.
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Citations
6 Claims
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1. An apparatus, comprising:
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a prosthetic heart valve including an expandable tubular stent body having a cuff and a leaflet assembly, at least three tether members each having a first end portion coupled to the expandable tubular stent body and a second end portion, the second end portion of the at least three tether members braided together at a coupling point to form a single braided anchoring tether extending from the coupling point, the single braided anchoring tether configured to extend through the heart and to be secured to an epicardial surface of the heart when the prosthetic heart valve is implanted within the heart. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification