Methods and apparatuses for deploying minimally-invasive heart valves
First Claim
1. A method for delivering and implanting a prosthetic heart valve in a native aortic valve in a patient, comprising:
- obtaining a prosthetic heart valve based on a measurement of a patient'"'"'s annulus, the prosthetic heart valve comprising a self-expandable stent body and a plurality of leaflet-forming membranes made from bovine pericardium, the prosthetic heart valve stored in an expanded configuration while coupled to a deployment mechanism;
collapsing the prosthetic heart valve to a contracted configuration while the prosthetic heart valve is coupled to the deployment mechanism;
advancing a catheter shaft over a guidewire and through a femoral artery while a patient'"'"'s heart is beating, the catheter shaft having the deployment mechanism and the prosthetic heart valve disposed along a distal end portion thereof, the catheter shaft having a proximal operating handle disposed along a proximal end portion thereof;
permitting the prosthetic heart valve to self-expand to an initial expanded configuration while the deployment mechanism is coupled to the prosthetic heart valve;
actuating the deployment mechanism via the proximal operating handle to expand the prosthetic heart valve from the initial expanded configuration to a final expanded configuration;
locking the prosthetic heart valve in the final expanded configuration via a mechanical locking device disposed on the prosthetic heart valve; and
detaching the deployment mechanism from the prosthetic heart valve and withdrawing the catheter shaft and deployment mechanism from the patient'"'"'s vasculature.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for delivering and implanting a prosthetic heart valve in a native aortic valve includes collapsing a prosthetic heart valve to a contracted configuration while the prosthetic heart valve is coupled to a mechanical deployment mechanism. A catheter shaft is advanced over a guidewire and through a femoral artery with the deployment mechanism and prosthetic heart valve disposed along a distal end portion thereof. The prosthetic heart valve is permitted to self-expand to an initial expanded configuration. The deployment mechanism is actuated from an operating handle to expand the prosthetic heart valve from the initial expanded configuration to a final expanded configuration. The prosthetic heart valve is locked in the final expanded configuration via a mechanical locking device located on the prosthetic heart valve.
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Citations
20 Claims
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1. A method for delivering and implanting a prosthetic heart valve in a native aortic valve in a patient, comprising:
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obtaining a prosthetic heart valve based on a measurement of a patient'"'"'s annulus, the prosthetic heart valve comprising a self-expandable stent body and a plurality of leaflet-forming membranes made from bovine pericardium, the prosthetic heart valve stored in an expanded configuration while coupled to a deployment mechanism; collapsing the prosthetic heart valve to a contracted configuration while the prosthetic heart valve is coupled to the deployment mechanism; advancing a catheter shaft over a guidewire and through a femoral artery while a patient'"'"'s heart is beating, the catheter shaft having the deployment mechanism and the prosthetic heart valve disposed along a distal end portion thereof, the catheter shaft having a proximal operating handle disposed along a proximal end portion thereof; permitting the prosthetic heart valve to self-expand to an initial expanded configuration while the deployment mechanism is coupled to the prosthetic heart valve; actuating the deployment mechanism via the proximal operating handle to expand the prosthetic heart valve from the initial expanded configuration to a final expanded configuration; locking the prosthetic heart valve in the final expanded configuration via a mechanical locking device disposed on the prosthetic heart valve; and detaching the deployment mechanism from the prosthetic heart valve and withdrawing the catheter shaft and deployment mechanism from the patient'"'"'s vasculature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for delivering and implanting a prosthetic heart valve in a native aortic valve in a patient, comprising:
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providing a prosthetic heart valve comprising a self-expandable stent body and a plurality of leaflet-forming membranes made from bovine pericardium, the prosthetic heart valve stored in an expanded configuration while connected to a deployment mechanism; compressing the prosthetic heart valve to a contracted configuration; percutaneously advancing a catheter shaft over a guidewire and through a femoral artery while a patient'"'"'s heart is beating and without cardiopulmonary bypass, the catheter shaft having the prosthetic heart valve and deployment mechanism disposed along a distal end portion thereof, the catheter shaft having a proximal operating handle disposed along a proximal end portion thereof; permitting the prosthetic heart valve to self-expand from the contracted configuration to an initial expanded configuration, wherein the deployment mechanism radially expands and remains coupled to the prosthetic heart valve while the prosthetic heart valve expands from the contracted configuration to an initial expanded configuration; actuating the deployment mechanism via the proximal operating handle for regulating the rate of expansion of the prosthetic heart valve from the initial expanded configuration to a final expanded configuration; locking the prosthetic heart valve in the final expanded configuration using a mechanical locking device disposed on the prosthetic heart valve; and releasing the prosthetic heart valve from the deployment mechanism and withdrawing the catheter shaft and deployment mechanism from the patient'"'"'s vasculature. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification