Mitral valve implants for the treatment of valvular regurgitation
First Claim
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1. An anchoring system comprising:
- an implant comprising a hub and a plurality of struts extending circumferentially around the hub, wherein the implant comprises a proximal end and a distal end, wherein the hub is located proximally, wherein at least one strut of the plurality of struts extends from the hub to the distal end of the implant, wherein the implant comprises a wider proximal end than distal end; and
a helical tissue anchor comprising a proximal end and a sharpened distal tip, the proximal end of the helical tissue anchor located proximal to the annular hub, the hub dimensioned to receive the helical tissue anchor therethrough, wherein a portion of the helical tissue anchor is configured to be passed through a distal end of the hub and toward the distal end of the implant to drive the sharpened distal tip of the helical tissue anchor into tissue;
wherein the helical tissue anchor comprises a first engagement structure, the first engagement structure for releasable engagement of a torque shaft;
wherein the torque shaft comprises a second engagement structure for engaging the helical tissue anchor;
wherein the torque shaft is configured to rotate the helical tissue anchor relative to the hub and into tissue, wherein the helical tissue anchor is configured to secure the implant to tissue.
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Abstract
The invention relates in some aspects to a device for use in the transcatheter treatment of mitral valve regurgitation, including steerable guidewires, implantable coaptation assistance devices, anchoring systems for attaching a ventricular projection of an implantable coaptation device, a kit, and methods of using an implantable coaptation assistance device among other methods.
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Citations
21 Claims
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1. An anchoring system comprising:
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an implant comprising a hub and a plurality of struts extending circumferentially around the hub, wherein the implant comprises a proximal end and a distal end, wherein the hub is located proximally, wherein at least one strut of the plurality of struts extends from the hub to the distal end of the implant, wherein the implant comprises a wider proximal end than distal end; and a helical tissue anchor comprising a proximal end and a sharpened distal tip, the proximal end of the helical tissue anchor located proximal to the annular hub, the hub dimensioned to receive the helical tissue anchor therethrough, wherein a portion of the helical tissue anchor is configured to be passed through a distal end of the hub and toward the distal end of the implant to drive the sharpened distal tip of the helical tissue anchor into tissue; wherein the helical tissue anchor comprises a first engagement structure, the first engagement structure for releasable engagement of a torque shaft; wherein the torque shaft comprises a second engagement structure for engaging the helical tissue anchor; wherein the torque shaft is configured to rotate the helical tissue anchor relative to the hub and into tissue, wherein the helical tissue anchor is configured to secure the implant to tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An anchoring system comprising:
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an implant comprising an annular hub and a plurality of struts extending circumferentially around the annular hub, wherein the annular hub is located near a proximal end of the implant, wherein at least one strut of the plurality of struts extends from the annular hub to a distal end of the implant, wherein the implant generally tapers in width from the proximal end to the distal end; a helical tissue anchor comprising a proximal end and a distal tip, wherein the proximal end of the helical tissue anchor is located proximal to the annular hub, wherein the helical tissue is configured to be rotated such that the distal tip extends distally from the annular hub toward the distal end of the implant to engage tissue located distal to the annular hub; a first engagement structure on the helical tissue anchor, the first engagement structure for releasable engagement of a torque shaft; wherein the torque shaft comprises a second engagement structure for engaging the helical tissue anchor; wherein the torque shaft is configured to rotate to drive the sharpened distal tip of the helical tissue anchor into tissue and secure the implant to tissue. - View Dependent Claims (18, 19, 20)
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21. An anchoring system comprising:
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an implant comprising a hub and a plurality of struts extending around the hub and integrally formed with the hub, wherein the hub is located proximally on the implant and the plurality of struts extend laterally and distally from the hub to than a frame of the implant, wherein the implant is bounded by a proximal edge, a distal edge, a first lateral edge, and a second lateral edge, wherein a length of the proximal edge greater than a length of the distal edge; and a helical tissue anchor comprising a proximal end and a distal end, the proximal end of the helical tissue anchor located proximal to the hub, the hub dimensioned to receive a portion of the helical tissue anchor, wherein the distal end of the helical tissue anchor is configured to extend distally from the hub to engage tissue located distal to the hub; wherein the helical tissue anchor comprises a first engagement structure, the first engagement structure for releasable engagement of a torque shaft; wherein the torque shaft comprises a second engagement structure for engaging the helical tissue anchor; wherein the torque shaft is configured to rotate the helical tissue anchor relative to the hub and into tissue, wherein the helical tissue anchor is configured to secure the implant to tissue.
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Specification