Staged deployment devices and methods for transcatheter heart valve delivery
First Claim
1. A method of delivering a collapsible prosthetic heart valve in a patient, the method comprising:
- providing a delivery device having a catheter assembly and an operating handle, the catheter assembly including a compartment adapted to receive the valve in an assembled condition, the operating handle including a frame defining a movement space therein, a carriage assembly moveable in first and second opposite longitudinal directions within the movement space, a coupler, and a deployment actuator constrained relative to the coupler in the longitudinal directions, the coupler operatively coupling the carriage assembly to the frame, the coupler being selectively lockable to the frame in any of a plurality of fixed positions within the movement space;
loading the valve into the compartment of the catheter assembly, the compartment and the valve being covered by a distal sheath of the catheter assembly;
inserting the catheter assembly into the patient;
positioning the valve at a target location within the patient;
partially deploying the valve by rotating the deployment actuator to move the carriage assembly of the operating handle relative to the coupler and the frame in a first longitudinal direction along a first portion of the movement space, while the coupler is in a locked condition in which the coupler is connected to the frame in a fixed position; and
fully deploying the valve by unlocking the coupler from the frame and translating the coupler together with the carriage assembly to continue movement of the carriage assembly in the first longitudinal direction along a second portion of the movement space.
1 Assignment
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Accused Products
Abstract
A delivery device for a collapsible heart valve includes an operating handle and a catheter assembly. The operating handle includes a frame defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, and a coupler having locked and unlocked conditions, the coupler being operatively connected to the carriage assembly for movement therewith. The catheter assembly includes a shaft around which a valve-receiving compartment is defined, the shaft being operatively connected to one of the frame or the carriage assembly, and a distal sheath operatively connected to the carriage assembly for movement therewith between a closed condition adapted to maintain the valve in the compartment and an open condition adapted to fully deploy the valve.
193 Citations
16 Claims
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1. A method of delivering a collapsible prosthetic heart valve in a patient, the method comprising:
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providing a delivery device having a catheter assembly and an operating handle, the catheter assembly including a compartment adapted to receive the valve in an assembled condition, the operating handle including a frame defining a movement space therein, a carriage assembly moveable in first and second opposite longitudinal directions within the movement space, a coupler, and a deployment actuator constrained relative to the coupler in the longitudinal directions, the coupler operatively coupling the carriage assembly to the frame, the coupler being selectively lockable to the frame in any of a plurality of fixed positions within the movement space; loading the valve into the compartment of the catheter assembly, the compartment and the valve being covered by a distal sheath of the catheter assembly; inserting the catheter assembly into the patient; positioning the valve at a target location within the patient; partially deploying the valve by rotating the deployment actuator to move the carriage assembly of the operating handle relative to the coupler and the frame in a first longitudinal direction along a first portion of the movement space, while the coupler is in a locked condition in which the coupler is connected to the frame in a fixed position; and fully deploying the valve by unlocking the coupler from the frame and translating the coupler together with the carriage assembly to continue movement of the carriage assembly in the first longitudinal direction along a second portion of the movement space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of delivering a collapsible prosthetic heart valve in a patient, the method comprising:
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providing a delivery device having a catheter assembly and an operating handle, the catheter assembly including a compartment adapted to receive the valve in an assembled condition, the operating handle including a frame defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, and a coupler operatively connected to the carriage assembly for movement therewith; loading the valve into the compartment of the catheter assembly, the compartment and the valve being covered by a distal sheath of the catheter assembly; inserting the catheter assembly into the patient; positioning the valve at a target location within the patient; partially deploying the valve by moving the carriage assembly of the operating handle in a first longitudinal direction along a first portion of the movement space, while the coupler is in a locked condition connected to the frame in a fixed position; and fully deploying the valve by unlocking the coupler from the frame and translating the coupler of the operating handle together with the carriage assembly to continue movement of the carriage assembly in the first longitudinal direction along a second portion of the movement space, wherein the operating handle further includes a threaded rod extending from the carriage assembly through the coupler, and a deployment actuator threadedly engaged with the threaded rod and longitudinally constrained relative to the coupler, and the partially deploying step includes rotating the deployment actuator.
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Specification