Apparatus and methods for delivery of prosthetic heart valves
AssigneeTendyne Holdings, Inc.
InventorZachary R. Vidlund
Life of this patent
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Abstract
Apparatus and methods are described herein for use in in establishing an improved AV loop with the use of a pulley/snare device at the base of a ventricle of a heart. In some methods described herein, a pulley/snare device is established to create a path with inherent concentricity to the aortic and mitral valves, allowing the valves to function normally during an interventional procedure in the heart, without impeding the motion of any leaflets. The pulley/snare device described herein minimizes the forces that are applied on the valves or associated cardiac tissue to “make the turn” from the aortic valve to the mitral valve.
Claims20
A method of establishing an arteriovenous loop in a heart of a patient for delivery of a transcatheter prosthetic valve, the method comprising:
- inserting a first catheter into a first access point of the patient, the catheter having a leading end, a trailing end opposite the leading end and a lumen extending between the leading and trailing ends;
- positioning the leading end of the first catheter in the left ventricle of the heart;
- inserting a first snare device into the lumen of the first catheter, the first snare device having a loop at a leading end of the first snare device;
- advancing the leading end of the first snare device through the leading end of the first catheter such that the loop of the first snare device is positioned in the left ventricle of the heart;
- inserting a first guidewire into a second access point of the patient different than the first access point, the first guidewire having a leading end;
- positioning the first guidewire into the left ventricle of the patient;
- and
- ensnaring the guidewire in the loop of the first snare device to form an arteriovenous loop such that a first portion of the arteriovenous loop traversing the native aortic valve and a second portion of the arteriovenous loop traversing the native mitral valve are spaced from the native aortic valve annulus and the native mitral valve annulus.
Dependencies are inferred from the claim text.