Transcatheter Retrieval of Mitral or Tri-Cuspid Valves
AssigneeTendyne Holdings, Inc.
InventorZachary J. Tegels
Life of this patent
Estimating the term…
Abstract
An apparatus for collapsing a prosthetic heart valve and retrieving the prosthetic heart valve from a native heart valve annulus includes a delivery tube having a lumen therethrough and a retrieval device extendable from the lumen. The retrieval device includes a first shaft including a plurality of first arms selectively moveable between a collapsed condition and an expanded condition, and a second shaft slidable relative to the first shaft, the second shaft including a plurality of second arms selectively moveable between a collapsed condition and an expanded condition. The first and second arms in the expanded condition grasp portions of the prosthetic heart valve, and in the collapsed condition collapse the prosthetic heart valve for removal through the delivery tube.
Claims20
A system for collapsing a prosthetic heart valve, comprising:
- a delivery tube having a lumen;
- and
- a retrieval device extendable from the lumen, the retrieval device comprising:
- a first shaft, and a plurality of first arms hingedly mounted about the first shaft and selectively moveable between a collapsed condition and an expanded condition;
- and
- a second shaft slidable relative to the first shaft, and a plurality of second arms hingedly mounted about the second shaft and selectively moveable between a collapsed condition and an expanded condition.
A retrieval device for collapsing a prosthetic heart valve, comprising:
- a proximal shaft, and a plurality of proximal arms hingedly mounted about the proximal shaft and selectively moveable between a collapsed condition and an expanded condition;
- and
- a distal shaft slidable relative to the proximal shaft, and a plurality of distal arms hingedly mounted about the distal shaft and selectively moveable between a collapsed condition and an expanded condition,
- wherein when the proximal arms and the distal arms are in the collapsed condition, the retrieval device is moveable through the lumen of a delivery tube, and when the proximal arms and the distal arms are in the expanded condition, the proximal arms are configured to capture a first end of a prosthetic heart valve and the distal arms are configured to capture a second end of the prosthetic heart valve.
A method of collapsing and removing a collapsible prosthetic heart valve from a native valve annulus of a patient, the method comprising:
- inserting a leading end of a delivery tube into the patient proximate the prosthetic heart valve;
- extending a retrieval device through a lumen of the delivery tube, the retrieval device comprising a first shaft and a second shaft, a plurality of first arms hingedly mounted about the first shaft and selectively moveable between a collapsed condition and an expanded condition, and a plurality of second arms hingedly mounted about the second shaft and selectively moveable between a collapsed condition and an expanded condition;
- sliding the second shaft away from the first shaft and through a prosthetic heart valve implanted within a native annulus of a patient;
- capturing a first end of the prosthetic heart valve using the plurality of first arms and capturing a second end of the prosthetic heart valve using the plurality of second arms;
- transitioning the plurality of first arms from the expanded condition to the collapsed condition and transitioning the plurality of second arms from the expanded condition to the collapsed condition to transition the prosthetic heart valve from an expanded condition to a collapsed condition;
- retracting the retrieval device and the prosthetic heart valve into the lumen of the delivery tube;
- and
- withdrawing the delivery tube from the patient.
Dependencies are inferred from the claim text.