Devices and methods for heart valve treatment
AssigneeMyocor, Inc.
InventorsRobert Vidlund, Jason Kalgreen, Todd Mortier, Cyril Schweich, Richard Schroeder, David Kusz
Life of this patent
Estimating the term…
Abstract
Devices and methods for treating heart valves include members that assist the valve in closing during at least a portion of the cardiac cycle. Such devices include members configured to alter the shape of a valve annulus, reposition at least one papillary muscle, and/or plug an orifice of the valve so as to provide a coaptation surface for the valve leaflets.
Claims47
1-167. (canceled)
A method of performing transluminal mitral annuloplasty, comprising the steps of:
- providing a catheter, having a prosthesis thereon;
- inserting the catheter into a venous system;
- transluminally advancing the prosthesis into a coronary sinus;
- advancing at least one tissue anchor from a retracted position to an extended position;
- and
- manipulating a component of the prosthesis to cause the prosthesis to exert force on a mitral valve annulus.
A method of performing annuloplasty of the mitral valve comprising positioning a prosthesis in the coronary sinus;
- rotating a first portion of the device with respect to a second portion of the device to cause the device to bend into an arcuate configuration having a proximal concavity and a distal concavity both concave toward the mitral valve and a central concavity concave away from the mitral valve, to provide a compressive force on the mitral valve annulus;
- and securing the device in the arcuate configuration within the coronary sinus.
A medical apparatus for remodeling a mitral valve annulus adjacent to the coronary sinus, comprising:
- an elongate body, having a proximal end region and a distal end region, each of the proximal and distal end regions configured to move between a first, flexible configuration for transluminal delivery to at least a portion of the coronary sinus and a second remodeling configuration in which each of the proximal and distal end regions forms a curve which is open in the direction of the mitral valve;
- and
- a forming element for manipulating the elongate body between the first transluminal configuration and the second remodeling configuration.
A method of reducing the circumference of a mitral valve annulus comprising the steps of:
- providing a mitral valve reducing device comprising an elongate member;
- positioning the elongate member in a first position at a location adjacent the atrioventricular groove and exterior of the vasculature of the heart, wherein in the first position, the elongate member has a first radius of curvature;
- and
- releasing the elongate member in the atrioventricular groove in a second position wherein in the second position the elongate member has a second radius of curvature less than the first radius of curvature so as to reduce the circumference of the mitral valve annulus.
A system for reducing the mitral annulus of a heart comprising:
- a mitral valve reducing device comprising:
- an elongate member having a first position wherein in the first position, the elongate member has a first radius of curvature, and a second position wherein in the second position the elongate member has a second radius of curvature less than the first radius of curvature;
- and
- a delivery system comprising:
- a catheter configured to access a pericardial space of a heart, adjacent an atrioventricular groove and outside of vasculature of the heart;
- and
- a mitral valve reducing device delivery member configured to place the reducing device in the atrioventricular groove.
A mitral valve reduction device comprising:
- an elongate member having a first position wherein in the first position, the elongate member has a first radius of curvature, a second position wherein in the second position the elongate member has a second radius of curvature less than the first radius of curvature, and a bending mechanism configured to move the elongate member from the first position to the second position;
- and
- a coating on the elongate member, wherein the coating comprises a tissue response promoter for promoting a tissue response adjacent the elongate member.
A mitral valve reduction device comprising:
- an elongate member having a first position wherein in the first position, the elongate member has a first radius of curvature and a second position wherein in the second position the elongate member has a second radius of curvature less than the first radius of curvature;
- and
- an end comprising a tissue engaging element configured to engage the heart within the atrioventricular groove.
Dependencies are inferred from the claim text.