Transcatheter delivery system with wheel actuation

Patent metadata

Field	Value
Publication number	US-12239531-B2
Application number	US-202418439973-A
Country	US
Kind code	B2
Filing date	Feb 13, 2024
Priority date	May 15, 2017
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A delivery device for a collapsible prosthetic heart valve, the delivery device including an inner shaft, a distal sheath disposed about a portion of the inner shaft and forming a compartment with the inner shaft, the compartment being adapted to receive the prosthetic heart valve, the inner shaft and the distal sheath being movable relative to one another, and a handle including a frame having a longitudinal axis, a proximal end and a distal end, the handle further including a deployment actuator and a hub, each of the deployment actuator and the hub being independently capable of opening and closing the compartment, the hub further including a hub actuator coupled to the inner shaft.

First claim

The invention claimed is:

1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
an inner shaft;
a distal sheath disposed about a portion of the inner shaft to form a compartment sized to receive the prosthetic heart valve, the inner shaft and the distal sheath being movable relative to one another; and
a handle including a frame having a longitudinal axis, a deployment actuator, a resheathing lock having a lock body coupled to a protruding lock finger in contact with a first compression spring, a lock arm coupled to the lock finger, and a lock button coupled to the lock arm;
wherein the distal sheath is coupled to a threaded rod, the threaded rod being coupleable to the lock body.

2. The delivery device of claim 1 , wherein the lock button has a first position disposed within the frame, and a second position in which the lock button protrudes from the frame.

3. The delivery device of claim 1 , wherein the lock body has a pair of ribs configured to maintain contact with a bottom of the threaded rod when the threaded rod translates along the longitudinal axis of the frame.

4. The delivery device of claim 3 , wherein the lock finger is configured to be disposed within a cavity of the threaded rod in a first lock condition that prevents distal movement of the distal sheath, and to be substantially parallel with the threaded rod in a second unlocked condition that allows distal movement of the distal sheath.

5. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
an inner shaft;
a distal sheath disposed about a portion of the inner shaft to form a compartment sized to receive the prosthetic heart valve, the inner shaft and the distal sheath being movable relative to one another;
a handle including a frame having a longitudinal axis, a deployment actuator, a resheathing lock having a lock body coupled to a protruding lock finger in contact with a first compression spring, a lock arm coupled to the lock finger, and a lock button coupled to the lock arm; and
a second compression spring coupled to the lock finger.

6. The delivery device of claim 5 , wherein the second compression spring is configured to apply a force to the lock body.

7. The delivery device of claim 5 , further comprising a dowel hinge pin pivotably connecting the lock body to the frame.

8. The delivery device of claim 7 , wherein the lock body is urged to pivot upward about the dowel hinge pin by the second compression spring.

9. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
an inner shaft;
a distal sheath disposed about a portion of the inner shaft to form a compartment sized to receive the prosthetic heart valve, the inner shaft and the distal sheath being movable relative to one another;
a handle including a frame having a longitudinal axis, a deployment actuator, a resheathing lock having a lock body coupled to a protruding lock finger in contact with a first compression spring, a lock arm coupled to the lock finger, and a lock button coupled to the lock arm; and
a leaf spring extending from a base of the lock body.

10. The delivery device of claim 9 , wherein the leaf spring is fixed to the frame and configured to apply a constant upward force to the lock body.

11. The delivery device of claim 9 , wherein the leaf spring is disposed generally perpendicular to the lock button.

Assignees

• St Jude Medical Cardiology Div Inc

Inventors

• Morrissey Michael Shane
• Frohman Bruce Edward
• Metz Michael William
• Skujins Janis Paulis
• Copeland David John
• Brown Spencer Patrick

Classifications

• A61F2/9517

  handle assemblies therefor · CPC title

• A61F2/95 Primary

  Instruments specially adapted for placement or removal of stents or stent-grafts · CPC title

• A61F2/2418

  Scaffolds therefor, e.g. support stents · CPC title

• A61F2/2436 Primary

  Deployment by retracting a sheath · CPC title