Ventricular anchors for valve repair and replacement devices
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.
1 . A spacer assembly comprising:
a spacer;
a first ventricular anchor connected to the spacer;
a first atrial anchor coupled to the first ventricular anchor;
wherein the first atrial anchor is made from a resilient material such that the first atrial anchor is configured to contact the first ventricular anchor when the first atrial anchor is unconstrained;
wherein the first ventricular anchor curves around the spacer when viewed from an upstream end;
a second ventricular anchor connected to the spacer;
a second atrial anchor coupled to the second ventricular anchor;
wherein the second atrial anchor is made from a resilient material such that the second atrial anchor is configured to contact the second ventricular anchor when the second atrial anchor is unconstrained; and
wherein the second ventricular anchor curves around the spacer when viewed from the upstream end.
2 . The spacer assembly of claim 1 wherein the first ventricular anchor and the first atrial anchor are is configured to capture a first native valve leaflet and the second ventricular anchor and the second atrial anchor are is configured to capture a second native valve leaflet.
3 . The spacer assembly of claim 1 wherein the spacer comprises at least one of a crescent shape, an elliptical shape, a circular shape, and an hourglass shape.
4 . The spacer assembly of claim 1 wherein the spacer has a minor axis dimension and a major axis dimension that is greater than the minor axis dimension.
5 . The spacer assembly of claim 1 wherein the first ventricular anchor extends from a ventricular end of the spacer and the second ventricular anchor extends from the ventricular end of the spacer.
6 . The spacer assembly of claim 1 wherein the spacer is made from an expandable material.
7 . The spacer assembly of claim 6 wherein a majority of expansion of the spacer is in a direction of a major axis of the spacer.
8 . The spacer assembly of claim 1 further comprising a biocompatible fabric covering on the first ventricular anchor and a biocompatible covering on the second ventricular anchor.
9 . A spacer assembly comprising:
an expandable spacer body;
a first ventricular anchor connected to the expandable spacer body;
a first atrial anchor coupled to the first ventricular anchor;
wherein the first atrial anchor is made from a resilient material such that the first atrial anchor is configured to contact the first ventricular anchor when the first atrial anchor is unconstrained;
wherein the first ventricular anchor curves around the expandable spacer body when the expandable spacer body is expanded and viewed from an upstream end;
a second ventricular anchor connected to the expandable spacer body;
a second atrial anchor coupled to the second ventricular anchor;
wherein the second atrial anchor is made from a resilient material such that the second atrial anchor is configured to contact the second ventricular anchor when the second atrial anchor is unconstrained; and
wherein the second ventricular anchor curves around the expandable spacer body when the expandable spacer body is expanded and viewed from the upstream end.
10 . The spacer assembly of claim 9 wherein the expandable spacer body comprises at least one of a crescent shape, an elliptical shape, and an hourglass shape in an expanded condition.
11 . The spacer assembly of claim 9 wherein the expandable spacer body has a minor axis dimension and a major axis dimension that is greater than the minor axis dimension in an expanded condition.
12 . The spacer assembly of claim 9 wherein a majority of expansion of the expandable spacer body is in a direction of a major axis of the expandable spacer body.
13 . The spacer assembly of claim 9 wherein the first ventricular anchor comprises a first bent wire and the second ventricular anchor comprises a second bent wire.
14 . A system comprising:
a delivery system comprising:
a sheath;
a shaft disposed in the sheath;
a spacer assembly coupled to the shaft, the spacer assembly comprising:
a spacer;
a first ventricular anchor connected to the spacer;
a first atrial anchor coupled to the first ventricular anchor;
wherein the first atrial anchor is made from a resilient material such that the first atrial anchor is configured to contact the first ventricular anchor when the first atrial anchor is unconstrained by the delivery system;
wherein the first ventricular anchor curves around the spacer when viewed from an upstream end;
a second ventricular anchor connected to the spacer;
a second atrial anchor coupled to the second ventricular anchor;
wherein the second atrial anchor is made from a resilient material such that the second atrial anchor is configured to contact the second ventricular anchor when the second atrial anchor is unconstrained by the delivery system; and
wherein the second ventricular anchor curves around the spacer when viewed from the upstream end.
15 . The system of claim 14 wherein the first ventricular anchor and the first atrial anchor are configured to capture a first native valve leaflet and the second ventricular anchor and the second atrial anchor are configured to capture a second native valve leaflet.
16 . The system of claim 14 wherein the spacer comprises at least one of a crescent shape, an elliptical shape, a circular shape, and an hourglass shape.
17 . The system of claim 14 wherein the spacer has a minor axis dimension and a major axis dimension that is greater than the minor axis dimension.
18 . The system of claim 14 wherein the spacer is made from an expandable material.
19 . The system of claim 18 wherein a majority of expansion of the spacer is in a direction of a major axis of the spacer.
20 . The system of claim 14 further comprising a biocompatible fabric covering on the first anchor and a biocompatible covering on the second anchor.