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US 11,376,124 B2Granted
Valve docking devices, systems and methods
AssigneeMitral Valve Technologies Sarl
InventorsPaul A. Spence, Landon H. Tompkins
Life of this patent
Estimating the term…
Abstract
Various systems, devices and methods associated with the placement of a dock or anchor (72) for a prosthetic valve (120). The anchor (72) may take the form of a helical anchor having multiple coils (104, 108) and/or a stent-like structure. Various methods include different levels of minimal invasive procedures for delivering the prosthetic valve anchor (72) and prosthetic valve (120), as well as tissue anchors for plication or other purposes to the native valve position in the heart (14).
Claims25
A method of implanting a mitral valve prosthesis in a heart of a patient, comprising:
- directing a coil guide catheter to a mitral valve position within the heart of the patient, placing a curved portion of the coil guide catheter generally in a plane of a native mitral valve in a left atrium of the heart with a curvature of the curved portion generally following a curve of a mitral valve annulus of the native mitral valve,
- delivering a helical anchor in a form of multiple coils from the coil guide catheter, wherein delivering the helical anchor includes:
- while a tip of the curved portion of the coil guide catheter is positioned adjacent a commissure of the native mitral valve, extruding a first portion of the helical anchor distally from the tip of the curved portion of the coil guide catheter into a left ventricle of the heart such that the first portion of the helical anchor is positioned below the mitral valve annulus;
- and
- after extruding the first portion of the helical anchor, retracting the curved portion of the coil guide catheter from a second portion of the helical anchor such that the second portion of the helical anchor is positioned above the mitral valve annulus in the left atrium, and
- implanting the mitral valve prosthesis within the multiple coils of the helical anchor such that the mitral valve prosthesis is supported by the helical anchor.
3 more elements
A method of implanting a prosthetic valve in a heart, comprising:
- directing a catheter to a native valve within the heart,
- positioning a curved portion of the catheter that has a first curved shape adjacent the native valve with the first curved shape of the curved portion curving along a native valve annulus of the native valve, the curved portion connected to a stem portion of the catheter at a second curved shape, and wherein the curved portion of the catheter is activated to the first and second curved shapes from a straightened configuration when the catheter is within the heart and proximate the native valve,
- delivering an anchor comprising multiple helical coils from the catheter, wherein the delivering the anchor includes:
- while a tip of the curved portion of the catheter is positioned near a commissure of the native valve, extruding a first portion of the anchor distally from the tip of the curved portion of the catheter into a ventricle of the heart such that the first portion of the anchor is positioned below the native valve annulus around native leaflets of the native valve;
- and
- after extruding the first portion of the anchor, retracting the curved portion of the catheter off of a second portion of the anchor such that the second portion of the anchor is positioned above the native valve annulus, and
- expanding the prosthetic valve within the multiple helical coils of the anchor such that a portion of the native leaflets are trapped between the prosthetic valve and the anchor.
4 more elements
A method of implanting a prosthetic valve in a heart, comprising:
- directing a catheter to a native mitral valve within the heart,
- positioning a curved portion of the catheter adjacent the native mitral valve,
- delivering an anchor from the catheter such that a first portion of the anchor is above a mitral valve annulus of the native mitral valve and a second portion of the anchor comprising multiple helical coils is below the mitral valve annulus of the native mitral valve encircling native leaflets of the native mitral valve, wherein the first portion of the anchor comprises at least one large diameter coil portion that is of larger diameter than all remaining coils of the anchor which include the multiple helical coils of the second portion of the anchor, and wherein the delivering the anchor further comprises engaging the at least one large diameter coil portion of the anchor with a wall of a left atrium of the heart above the mitral valve annulus, and
- expanding the prosthetic valve within the multiple helical coils of the second portion of the anchor such that tissue of the native leaflets is trapped between the prosthetic valve and the multiple helical coils.
1 more element
Dependencies are inferred from the claim text.