IP Library › Granted Patent US 12678285
Granted Patent B2
US 12678285 · App. 17/287,599 · Granted Jul 14, 2026

Valve cusp sizer

Inventor: Shigeyuki Ozaki (Tokyo, JP)
A61F2/2496A61F2/76A61F2002/762
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Quick Facts
Patent No.
US 12678285
App. No.
17/287,599
Granted
Jul 14, 2026
Kind
B2
Abstract

A valve cusp sizer includes a back surface brought into contact with a living body, and a hole that is formed on the top surface at a distance from the center in a left-right direction toward one side in the left-right direction and into which a support rod is inserted.

Claims (44)

1 . A valve cusp sizer comprising:

an outer peripheral surface having an arcuate shape and configured to be brought into contact with a living body;

a plurality of portions to be supported comprising a first portion to be supported and a second portion to be supported, each of the first portion to be supported and the second portion to be supported protruding from an inner peripheral surface of the valve cusp sizer, and the first portion to be supported being disposed at a first end in a circumferential direction of the valve cusp sizer and the second portion to be supported being disposed at a second end in the circumferential direction of the valve cusp sizer; and

each of the plurality of portions to be supported comprising a hole configured to receive a support rod, wherein

each of the first portion to be supported and the second portion to be supported are positioned at a same distance from a center of the arcuate shape in a left-right direction.

2 . The valve cusp sizer according to claim 1 ,

wherein a top surface of the valve cusp sizer comprises a top surface of each of the plurality of portions to be supported, and

wherein the hole of each of the plurality of portions to be supported is formed on the top surface of the valve cusp sizer.

3 . The valve cusp sizer according to claim 2 , wherein each hole is formed in the top surface of a corresponding one of the plurality of portions to be supported at a distal end from the inner peripheral surface of the valve cusp sizer.

4 . The valve cusp sizer according to claim 2 , wherein each hole is inclined relative to a bottom surface of the valve cusp sizer, the bottom surface being a surface opposite to the top surface of the top surface of the valve cusp sizer.

5 . The valve cusp sizer according to claim 1 , wherein each hole is formed in a corresponding one of the plurality of portions to be supported at a distal end thereof from the inner peripheral surface of the valve cusp sizer.

6 . The valve cusp sizer according to claim 1 , wherein each hole is inclined relative to a bottom surface of the valve cusp sizer.

7 . The valve cusp sizer of claim 1 , wherein each of the plurality of portions to be supported protrude orthogonally from the inner peripheral surface of the valve cusp sizer.

8 . The valve cusp sizer of claim 1 , wherein the outer peripheral surface of the valve cusp sizer defines an arc, and each of the plurality of portions to be supported protrude from the inner peripheral surface toward a center of the arc, the center of the arc being a center of an imaginary circle formed by the arc.

9 . The valve cusp sizer according to claim 8 , wherein

the outer peripheral surface and the inner peripheral surface have a substantially constant radial width with respect to the center of the arc along the circumferential direction of the valve cusp sizer from the left-side end and the right-side end.

10 . The valve cusp sizer of claim 1 , wherein the first end of the valve cusp sizer is a left-side end and the second end of the valve cusp sizer is a right-side end.

11 . The valve cusp sizer of claim 1 , wherein a shape of the hole corresponds to a shape of the support rod.

12 . The valve cusp sizer of claim 1 , wherein the hole has a hexagonal shape and the support rod has a hexagonal cross section.

13 . The valve cusp sizer of claim 1 , further comprising:

a convex portion protruding in the circumferential direction from a first end face of the valve cusp sizer; and

a concave portion extending in the circumferential direction into a second end face of the valve cusp sizer.

14 . The valve cusp sizer of claim 13 , wherein the convex portion and the concave portion are configured to be connecting means to other valve cusp sizers.

15 . A valve cusp sizer comprising:

an outer peripheral surface having an arcuate shape and configured to be brought into contact with a living body;

a first portion to be supported protruding orthogonally from an inner peripheral surface of the valve cusp sizer at a left-side end in a circumferential direction of the valve cusp sizer;

a second portion to be supported protruding orthogonally from the inner peripheral surface of the valve cusp sizer at a right-side end in a circumferential direction of the valve cusp sizer,

wherein each of the first portion to be supported and the second portion to be supported comprise a hole configured to receive a support rod, and

wherein each of the first portion to be supported and the second portion to be supported are positioned at a same distance from a center of the arcuate shape in a left-right direction.

16 . The valve cusp sizer according to claim 15 ,

wherein a top surface of the valve cusp sizer comprises a top surface of each of the first portion to be supported and the second portion to be supported,

wherein the hole of each of the first portion to be supported and the second portion to be supported is formed on the top surface of the valve cusp sizer at a distal end thereof from the inner peripheral surface of the valve cusp sizer.

17 . The valve cusp sizer according to claim 15 , wherein each hole is inclined relative to a bottom surface of the valve cusp sizer, the bottom surface being a surface opposite to the top surface of the top surface of the valve cusp sizer.

18 . The valve cusp sizer according to claim 16 , wherein the outer peripheral surface of the valve cusp sizer defines an arc, and each of the first portion to be support and the second portion to be supported protrude from the inner peripheral surface toward a center of the arc, the center of the arc being a center of an imaginary circle formed by the arc.

19 . The valve cusp sizer according to claim 18 , wherein

the outer peripheral surface and the inner peripheral surface have a substantially constant radial width with respect to the center of the arc along the circumferential direction of the valve cusp sizer from the left-side end and the right-side end.

20 . A plurality of valve cusp sizer, each valve cusp sizer of the plurality of valve cusp sizer comprising:

an outer peripheral surface having an arcuate shape and configured to be brought into contact with a living body;

a first portion to be supported protruding orthogonally from an inner peripheral surface of the valve cusp sizer at a left-side end in a circumferential direction of the valve cusp sizer;

a second portion to be supported protruding orthogonally from the inner peripheral surface of the valve cusp sizer at a right-side end in a circumferential direction of the valve cusp sizer;

a convex portion protruding in the circumferential direction from a first end face of the valve cusp sizer; and

a concave portion extending in the circumferential direction into a second end face of the valve cusp sizer,

wherein each of the first portion to be supported and the second portion to be supported comprise a hole configured to receive a support rod, and

wherein the convex portion is configured to be connected to the convex portion of other of the plurality of valve cusp sizers.