US 2024/0180697 A1Published application

Devices and methods for aortic valve preparation prior to transcatheter prosthetic valve procedures

AssigneeMedtronic, Inc.

InventorsJorge Zhingre Sanchez, Anthony Nesberg, Erik Jagger, Jeffrey Sandstrom, Vijayanarayan Madhavan Potti, Jacob McHenry, Michael Bateman, Ryan Stublaski, Ana Menk, Paul Rothstein, Joel Racchini

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Abstract

Aspects of the disclosure relate to devices and methods for preparing an existing, implanted prosthetic aortic valve for subsequent prosthetic aortic valve implantation. To prepare the existing valve, a valve preparation device is delivered to the valve and valve leaflets are severed either via mechanical cutting or electrodes so that the leaflets cannot obstruct a blood flow path once a prosthetic valve is subsequently implanted within the valve. Similarly, in alternate embodiments, devices and methods of the disclosure can be used for preparing a native aortic valve for delivery and implantation of a prosthetic valve.

Claims20

Dependent claims

A valve preparation device configured to sever at least one leaflet of a prosthetic heart valve comprising:

a first capsule comprising a first opening at a proximal end of the first capsule;
a second capsule comprising a second opening at a distal end of the second capsule;
a severing device configured to be compressed into a delivery configuration, wherein a first portion of the severing device is compressively retained in a contracted orientation within the first capsule and a second portion of the severing device is compressively retained in a contracted orientation within the second capsule,
wherein a proximal end of the first portion of the severing device is configured to extend outside of the first opening of the first capsule to self-expand to a first expanded orientation outside of the first capsule, and
wherein a distal end of the second portion of the severing device is configured to extend outside of the second opening of the second capsule to self-expand to a second expanded orientation outside of the second capsule.

2 more elements

A valve preparation device configured to sever at least one leaflet of a prosthetic heart valve comprising:

a first capsule comprising a first opening at a proximal end of the first capsule;
at least one wire connected to the first capsule and configured to move the first capsule;
a second capsule comprising a second opening at a distal end of the second capsule;
a shaft attached to the second capsule and configured to move the second capsule;
a severing device configured to be compressed into a delivery configuration, wherein a first portion of the severing device is compressively retained in a contracted orientation within the first capsule and a second portion of the severing device is compressively retained in a contracted orientation within the second capsule;
a first catheter attached to the first portion of the severing device and configured to move the first portion of the severing device;
a second catheter attached to the second portion of the severing device and configured to move the second portion of the severing device;
wherein the at least one wire is configured to be distally advanced to distally move the first capsule relative to the first portion to extend a proximal end of the first portion of the severing device outside of the first opening of the first capsule to self-expand to a first expanded orientation outside of the first capsule,
wherein the shaft is configured to be proximally retracted to proximally move the second capsule relative to the second portion to extend a distal end of the second portion of the severing device outside of the second opening of the second capsule to self-expand to a second expanded orientation outside of the second capsule;
and
wherein, the first catheter and the second catheter are configured to move the first portion and the second portion together while the proximal end is in the first expanded orientation and the distal end is in the second expanded orientation to sever at least one leaflet of a prosthetic heart valve.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/440,902Filed 13 Feb 2024
Priority: 27 Mar 2018
Published: 6 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61F 2/2427
Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the…:…
A61B 17/32053
Excision instruments: punch like cutting instruments, e.g. using a cylindrical or oval knife
A61B 17/3207
Excision instruments: atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
A61B 18/1492
Probes or electrodes therefor: having a flexible, catheter-like structure, e.g. for heart ablation

Family

Application62/648,669Us provisional application · filed 27 Mar 2018
Application16/364,488Continuation · filed 26 Mar 2019
Application18/440,902Continuation
US 11,931,257 B2Related patent
US 2019/0298517 A1Published application
US 2024/0180697 A1This patent

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