Methods for deploying a prosthesis
First Claim
1. A method of deploying an implantable prosthesis in a patient via a placement catheter, wherein the placement catheter comprises an inner control wire and an outer sheath slidably disposed over the inner control wire, the method comprising:
- folding a left atrium flange and a right atrium flange of the implantable prosthesis away from each other with distal ends of flange segments of the right atrium flange aligning with a first position of the inner control wire;
stowing the outer sheath onto the folded implantable prosthesis;
advancing both the inner control wire and the outer sheath to a desired location adjacent to the atrial septum of the patient, such that distal ends of both the inner control wire and the outer sheath are in the left atrium;
verifying the desired location via a non-invasive imaging technique;
retracting the outer sheath a first instance of a fixed length proximally by a first actuation of a slider of a control device while maintaining the distal end of the inner control wire within the left atrium, and exposing a left atrium flange and legs of the implantable prosthesis in the left atrium, wherein a proximal end of the inner control wire is attached to a first portion of the control device; and
while keeping the aligning between the distal ends of flange segments of the right atrium flange and the first position of the inner control wire, retracting the placement catheter and partially exposed implantable prosthesis toward a right atrium until the left atrium flange is in contact with a left atrial side of the atrial septum;
retracting the outer sheath a second instance of a fixed length proximally by a second actuation of the slider of the control device while maintaining the distal end of the inner control wire within the left atrium, and exposing the right atrium flange of the implantable prosthesis in the right atrium, wherein a proximal end of the outer sheath is attached to a second portion of the control device,wherein the first and second fixed lengths are determined by fixed lengths of a track in the control device.
2 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure relates to devices and methods for implanting a prosthesis into a heart of a mammal, such as a person. The disclosure includes a prosthesis that acts as a pressure vent between the left and right atria of the heart. The disclosure also includes a mounting tool for mounting the prosthesis onto a loading tool, the loading tool useful for loading the prosthesis onto a device for delivering the prosthesis into the patient'"'"'s heart. Control devices and methods for using these devices are also disclosed. The intracardiac pressure vents disclosed allow sufficient flow from the left atrium to the right atrium to relieve elevated left atrial pressure and resulting patient symptoms. The devices also limit the amount of flow from the right atrium to the left atrium to minimize the potential for thrombi or other embolic material from entering arterial circulation.
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Citations
11 Claims
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1. A method of deploying an implantable prosthesis in a patient via a placement catheter, wherein the placement catheter comprises an inner control wire and an outer sheath slidably disposed over the inner control wire, the method comprising:
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folding a left atrium flange and a right atrium flange of the implantable prosthesis away from each other with distal ends of flange segments of the right atrium flange aligning with a first position of the inner control wire; stowing the outer sheath onto the folded implantable prosthesis; advancing both the inner control wire and the outer sheath to a desired location adjacent to the atrial septum of the patient, such that distal ends of both the inner control wire and the outer sheath are in the left atrium; verifying the desired location via a non-invasive imaging technique; retracting the outer sheath a first instance of a fixed length proximally by a first actuation of a slider of a control device while maintaining the distal end of the inner control wire within the left atrium, and exposing a left atrium flange and legs of the implantable prosthesis in the left atrium, wherein a proximal end of the inner control wire is attached to a first portion of the control device; and while keeping the aligning between the distal ends of flange segments of the right atrium flange and the first position of the inner control wire, retracting the placement catheter and partially exposed implantable prosthesis toward a right atrium until the left atrium flange is in contact with a left atrial side of the atrial septum; retracting the outer sheath a second instance of a fixed length proximally by a second actuation of the slider of the control device while maintaining the distal end of the inner control wire within the left atrium, and exposing the right atrium flange of the implantable prosthesis in the right atrium, wherein a proximal end of the outer sheath is attached to a second portion of the control device, wherein the first and second fixed lengths are determined by fixed lengths of a track in the control device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification