Hydraulic delivery systems for prosthetic heart valve devices and associated methods
First Claim
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1. A method for delivering a prosthetic heart valve device for repair or replacement of a native valve a heart of a human patient, the method comprising:
- positioning a delivery capsule of a catheter within the heart of the patient, the delivery capsule carrying the prosthetic heart valve device;
hydraulically moving the delivery capsule in a proximal direction from a containment configuration towards a deployment configuration by delivering fluid through an elongated catheter body and into a fluidically sealed fluid chamber of the delivery capsule, wherein the fluidically sealed chamber is proximal to the prosthetic heart valve device and defined by a space between an inner proximal end surface of the delivery capsule and a proximal head of a piston device located within the delivery capsule, and wherein hydraulically moving the delivery capsule in a proximal direction comprises—
delivering fluid to the fluidically sealed chamber thereby increasing the space between the proximal head and the inner proximal end surface and unsheathe the prosthetic heart valve device; and
allowing the prosthetic heart valve device to radially expand to engage tissue of the heart when the delivery capsule moves from the containment configuration towards the deployment configuration.
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Abstract
Systems, apparatuses, and methods for treating native heart valves are disclosed herein. A system for delivering a prosthetic device into a heart of a patient includes an elongated catheter body and a delivery capsule. The delivery capsule can be hydraulically driven to deploy at least a portion of a prosthetic heart valve device. The delivery capsule can release the prosthetic heart valve device at a desired treatment site in a patient.
643 Citations
9 Claims
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1. A method for delivering a prosthetic heart valve device for repair or replacement of a native valve a heart of a human patient, the method comprising:
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positioning a delivery capsule of a catheter within the heart of the patient, the delivery capsule carrying the prosthetic heart valve device; hydraulically moving the delivery capsule in a proximal direction from a containment configuration towards a deployment configuration by delivering fluid through an elongated catheter body and into a fluidically sealed fluid chamber of the delivery capsule, wherein the fluidically sealed chamber is proximal to the prosthetic heart valve device and defined by a space between an inner proximal end surface of the delivery capsule and a proximal head of a piston device located within the delivery capsule, and wherein hydraulically moving the delivery capsule in a proximal direction comprises— delivering fluid to the fluidically sealed chamber thereby increasing the space between the proximal head and the inner proximal end surface and unsheathe the prosthetic heart valve device; and allowing the prosthetic heart valve device to radially expand to engage tissue of the heart when the delivery capsule moves from the containment configuration towards the deployment configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification