Ventricular anchors for valve repair and replacement devices
Inventors
Chau, Mark • Patterson, Marlowe E. • Yi, Seung-Beom • Geist, Stephen C. • Oba, Travis Zenyo
Assignees
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Publication Number
US-12734029-B2
Publication Date
2026-09-15
Expiration Date
Abstract
A prosthetic spacer assembly includes a spacer, a first anchor, and a second anchor. The first anchor and the second anchor are each connected to the spacer. The first anchor curves around the spacer when viewed from an upstream end. The second anchor curves around the spacer when viewed from the upstream end.
Core Innovation
The patent describes a mitral-regurgitation spacer assembly comprising a spacer or expandable spacer body with paired ventricular and resilient atrial anchors. Each ventricular anchor connects to the spacer and curves around the spacer body when viewed from an upstream end, while each resilient atrial anchor couples to a corresponding ventricular anchor and contacts it when unconstrained. The anchors oppose one another across the mitral annulus to retain the implant between native valve leaflets.
The assembly operates with a delivery system comprising a sheath and a shaft disposed in the sheath, including a transseptal sheath-and-torque-shaft configuration. Disclosed embodiments illustrate sleeve-like, mesh-covered, and coil spacer constructions having crescent, elliptical, circular, or hourglass geometries, as well as expandable valve-frame designs. Because the background section is omitted in the provided content, the underlying problem being solved is not explicitly described in patent.
Claims Coverage
The claims identify three independent claims directed to three inventive features: two configurations of a spacer assembly and a delivery system coupled to the spacer assembly.
Spacer assembly with paired ventricular and atrial anchors
A spacer, first and second ventricular anchors connected to the spacer, and corresponding resilient atrial anchors coupled to the ventricular anchors. Each atrial anchor is configured to contact its corresponding ventricular anchor when unconstrained, and each ventricular anchor curves around the spacer when viewed from an upstream end.
Expandable spacer body with paired ventricular and atrial anchors
An expandable spacer body with first and second ventricular anchors connected to the body and corresponding resilient atrial anchors coupled to the ventricular anchors. Each atrial anchor is configured to contact its corresponding ventricular anchor when unconstrained, and each ventricular anchor curves around the expanded spacer body when viewed from an upstream end.
Delivery system coupled to a spacer assembly
A delivery system comprising a sheath, a shaft disposed in the sheath, and a spacer assembly coupled to the shaft. The spacer assembly comprises a spacer and two ventricular anchors, each coupled to a resilient atrial anchor configured to contact its corresponding ventricular anchor when unconstrained by the delivery system, with each ventricular anchor curving around the spacer when viewed from an upstream end.
The three independent claims cover two configurations of a spacer assembly with paired ventricular and resilient atrial anchors, including an expandable spacer body, and a delivery system incorporating the spacer assembly.
Stated Advantages
Not explicitly described in patent.
Documented Applications
The spacer assembly is described for mitral-regurgitation use, with the paired anchors arranged to retain the implant across the mitral annulus.
The document describes a transseptal delivery system for the spacer assembly, including a sheath-and-torque-shaft system.
Native-valve repair, wherein spacer assemblies are delivered and deployed within the heart between native valve leaflets, with paired atrial and ventricular anchors arranged to capture the leaflets.
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