Devices and methods for transcatheter heart valve delivery
First Claim
1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
- an operating handle, including;
a housing defining a movement space therein;
a carriage assembly moveable in a longitudinal direction within the movement space;
a deployment actuator coupled to the housing and rotatable relative to the housing; and
a coupling assembly rotationally fixed to the deployment actuator, the coupling assembly having an engaged position in which rotation of the deployment actuator moves the carriage assembly in the longitudinal direction, and a disengaged position in which rotation of the deployment actuator does not move the carriage assembly in the longitudinal direction; and
a catheter assembly, including;
a first shaft around which a compartment is defined, the first shaft being operatively connected to the housing, the compartment being adapted to receive the valve in an assembled condition; and
a distal sheath operatively connected to the carriage assembly, the distal sheath being moveable between a closed condition covering the compartment and an open condition uncovering the compartment for deployment of the valve,wherein movement of the carriage assembly in the longitudinal direction in the movement space moves the distal sheath between the closed condition and the open condition,wherein the carriage assembly includes a threaded rod extending from a body of the carriage assembly and into threaded engagement with the coupling assembly, andwherein the coupling assembly includes a split nut having a plurality of threaded split nut portions, the split nut having an engaged position in which threads of the split nut portions are engaged with the threaded rod and a disengaged position in which the threads of the split nut portions do not engage the threaded rod.
3 Assignments
0 Petitions
Accused Products
Abstract
A delivery device for a collapsible prosthetic heart valve includes an operating handle and a catheter assembly. The operating handle may include a housing defining a movement space therein, a carriage assembly moveable in a longitudinal direction within the movement space, a deployment actuator coupled to the housing and rotatable relative to the housing, and a coupling assembly rotationally fixed to the deployment actuator. The catheter assembly may include a first shaft around which a compartment is defined and a distal sheath operatively connected to the carriage assembly. Movement of the carriage assembly in the longitudinal direction in the movement space may move the distal sheath between the closed condition and the open condition. The coupling assembly may have an engaged position in which rotation of the deployment actuator moves the carriage assembly, and a disengaged position in which rotation of the deployment actuator does not move the carriage assembly.
78 Citations
34 Claims
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1. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
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an operating handle, including; a housing defining a movement space therein; a carriage assembly moveable in a longitudinal direction within the movement space; a deployment actuator coupled to the housing and rotatable relative to the housing; and a coupling assembly rotationally fixed to the deployment actuator, the coupling assembly having an engaged position in which rotation of the deployment actuator moves the carriage assembly in the longitudinal direction, and a disengaged position in which rotation of the deployment actuator does not move the carriage assembly in the longitudinal direction; and a catheter assembly, including; a first shaft around which a compartment is defined, the first shaft being operatively connected to the housing, the compartment being adapted to receive the valve in an assembled condition; and a distal sheath operatively connected to the carriage assembly, the distal sheath being moveable between a closed condition covering the compartment and an open condition uncovering the compartment for deployment of the valve, wherein movement of the carriage assembly in the longitudinal direction in the movement space moves the distal sheath between the closed condition and the open condition, wherein the carriage assembly includes a threaded rod extending from a body of the carriage assembly and into threaded engagement with the coupling assembly, and wherein the coupling assembly includes a split nut having a plurality of threaded split nut portions, the split nut having an engaged position in which threads of the split nut portions are engaged with the threaded rod and a disengaged position in which the threads of the split nut portions do not engage the threaded rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 housing defining a movement space therein, a carriage assembly moveable in first and second longitudinal directions within the movement space, a deployment actuator coupled to the housing and rotatable relative to the housing, and a coupling assembly rotationally fixed to the deployment actuator, the operating handle further including a threaded rod extending from the carriage assembly and into threaded engagement with the coupling assembly, the coupling assembly including a split nut having a plurality of threaded split nut portions, the split nut having an engaged position in which threads of the split nut portions are engaged with the threaded rod and a disengaged position in which the threads of the split nut portions do not engage the threaded rod; loading the valve into the compartment of the catheter assembly and covering the compartment and the valve with a distal sheath of the catheter assembly; inserting the catheter assembly into the patient so that the valve is positioned at a target location within the patient; partially deploying the valve by moving the carriage assembly of the operating handle in the first longitudinal direction along a first portion of the movement space; and fully deploying the valve by continuing movement of the carriage assembly in the first longitudinal direction along a second portion of the movement space. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A delivery device for a collapsible prosthetic heart valve, the delivery device comprising:
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a first shaft around which a compartment is defined, the first shaft extending in a longitudinal direction and having an outwardly flared portion at a distal end thereof, the compartment being adapted to receive the valve in an assembled condition; an outer shaft surrounding at least a longitudinal portion of the first shaft, the outer shaft being slidable relative to the first shaft in the longitudinal direction; a distal sheath attached to one of the first shaft and the outer shaft and surrounding a longitudinal portion of the first shaft, the distal sheath being moveable in the longitudinal direction between a closed condition covering the compartment and an open condition uncovering the compartment for deployment of the valve, the distal sheath being operatively connected to a carriage assembly; and an atraumatic tip attached to the distal end of the first shaft, the atraumatic tip having a lumen extending longitudinally therethrough and an insert located within the lumen, the outwardly flared portion of the first shaft being fixed between a distal end of the insert and material forming the atraumatic tip, wherein the carriage assembly is moveable in first and second opposite directions and includes a threaded rod extending from the carriage assembly and into threaded engagement with a coupling assembly, the coupling assembly including a split nut having a plurality of threaded split nut portions, the split nut having an engaged position in which threads of the split nut portions are engaged with the threaded rod and a disengaged position in which the threads of the split nut portions do not engage the threaded rod. - View Dependent Claims (33, 34)
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Specification