US 11,432,927 B2Granted

Implantable device and delivery system for reshaping a heart valve annulus

AssigneeBoston Scientific Scimed, Inc.

InventorsRandall Lashinski, Kristian Kristoffersen, Matthew Rust, Richard Glenn, Michael J. Lee, Patrick E. Macaulay, Kenny D. Bruner, Padraig J. Savage, Nathan D. Brown

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Abstract

Systems, devices and methods related to various heart valve implants and for delivery of those implants are described. The implants may be used to re-size a native valve annulus or to replace a native heart valve. The implants include a re-sizable frame having angled struts. The implant is secured to tissue with anchors that can rotate without axial advancement to engage tissue while drawing the implant closer to the tissue. Collars are used to decrease the angle between struts of a frame to contract the implant. The implants can include a rotatable shaft, such as a threaded shaft, located internally to an axially translatable collar. Rotation of the shaft transmits force to the collar to cause the collar to translate axially, closing the angle of adjacent struts and decreasing the width of the implant and thus of the annulus. The implants can be delivered, secured and contracted via a catheter. The implants are repositionable and retrievable via catheter.

Claims5

Dependent claims

An implant comprising:

a tubular frame having a proximal end, a distal end and a central lumen extending therethrough, the tubular frame comprising a plurality of pairs of struts joined to form a plurality of proximal apices and a plurality of distal apices;
an adjustment mechanism coupled to a first pair of struts that form a proximal apex, the adjustment mechanism configured to control a spacing between distal ends of the first pair of struts;
an anchor housing carried by a distal apex formed by a second pair of struts;
and
an anchor translationally disposed within an opening of the anchor housing and axially moveable within the anchor housing between a first position and a second position, wherein in the first position the anchor advances axially relative to the tubular frame in response to rotation of the anchor in a first direction within the anchor housing, and in the second position the anchor is freely rotatable in the first direction within the anchor housing without axially advancing relative to the anchor housing.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/718,745Filed 18 Dec 2019 · continuation
Priority: 10 Feb 2017
Published: US 2020/0146825 A114 May 2020
Granted: 6 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61F 2/2442
Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the…:…
A61F 2/2445
Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve: annuloplasty rings in…
A61F 2/2418
With soft flexible valve members, e.g. tissue valves shaped like natural valves: scaffolds therefor, e.g. support stents
A61F 2/243
Devices for manipulating or deploying heart valves during implantation: deployment by mechanical expansion

Family

Application62/457,441Us provisional application · filed 10 Feb 2017
Application62/552,896Us provisional application · filed 31 Aug 2017
Application15/893,122Parent of this continuation · filed 9 Feb 2018
US 2020/0146825 A1Pre-grant publication · published 14 May 2020
US 10,548,731 B2Parent of this continuation
US 2018/0228610 A1Published application
US 11,432,927 B2This patent

From the US filing history. Foreign family members aren’t listed.

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