Mitral valve inversion prostheses
AssigneeBoston Scientific Scimed, Inc.
InventorRandall Lashinski
Life of this patent
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Abstract
The present disclosure includes a method that includes inserting an implant proximate a mitral valve, the implant comprising a tubular body and a plurality of piercing members, the tubular body comprising an upper diameter and a lower diameter. The method also includes engaging tissue proximate the mitral valve by the plurality of piercing members and transitioning the tubular body from a first structural configuration to a second structural configuration by application of an expansive force to the tubular body proximate the upper diameter, the first structural configuration having the upper diameter smaller than the lower diameter and the second structural configuration having the upper diameter larger than the lower diameter. The present disclosure also includes associated systems and implants.
Claims20
An implant for reshaping a mitral valve annulus, the implant comprising:
- a tubular body in the form of a mesh of repeating shapes comprising a plurality of struts, with adjacent pairs of struts joined to form a plurality of upper apices and lower apices, the tubular body comprising an upper portion with an upper diameter and a lower portion with a lower diameter, the upper portion configured to be free in the left atrium and the lower portion configured to engage tissue around a mitral valve, the tubular body having a first structural configuration in which the upper diameter is smaller than the lower diameter and a second structural configuration in which the upper diameter is larger than the lower diameter;
- and
- a plurality of piercing members coupled to the lower apices.
A system comprising:
- a guide wire;
- a sheath for sliding over the guide wire;
- an implant for delivery to a body by traveling through the sheath and along the guide wire, the implant comprising:
- a tubular body in the form of a mesh of repeating shapes comprising a plurality of struts, with adjacent pairs of struts joined to form a plurality of upper apices and lower apices, the tubular body comprising an upper portion with an upper diameter and a lower portion with a lower diameter, the upper portion configured to be free in the left atrium and the lower portion configured to engage tissue around a mitral valve, the tubular body having a first structural configuration in which the upper diameter is smaller than the lower diameter and a second structural configuration in which the upper diameter is larger than the lower diameter;
- and
- a plurality of piercing members connected to the lower apices of the tubular body.
An implant for reshaping a mitral valve annulus, the implant comprising:
- a tubular body in the form of a mesh of repeating shapes comprising a plurality of struts, with adjacent pairs of struts joined to form a plurality of upper apices and lower apices, the tubular body having an upper portion with an upper diameter and a lower portion with a lower diameter, the upper portion configured to be free in the left atrium and the lower portion configured to engage tissue around a the mitral valve annulus, the tubular body having an anchored configuration in which the upper diameter is larger than the lower diameter;
- and
- a plurality of piercing members connected to the lower apices of the tubular body proximate the lower diameter and configured to extend radially outward in the anchored configuration to engage tissue proximate the mitral valve.
Dependencies are inferred from the claim text.