Aortic heart valve prosthesis implantation tool
AssigneeSt. Jude Medical, Inc.
InventorsThomas G. Schoon, Eric S. Buchanan
Life of this patent
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Abstract
Improved tools for visualizing, sizing and/or marking include a prosthesis template with a diameter approximately equal to the diameter of an aortic heart valve prosthesis. In preferred embodiments, the prosthesis template has an annulus end and a sinotubular junction end wherein the diameter at the annulus end is less than the diameter at the sinotubular junction end. The prosthesis template can include a marking element configured to mark tissue at particular positions relative to the prosthesis template. Marking can be performed with a variety of techniques.
Claims20
A tool comprising a prosthesis template, the prosthesis template having an annulus end, a sidewall terminating at the annulus end, and a sinotubular junction end, the prosthesis template further comprising a plurality of posts around the circumference extending toward the sinotubular junction end, wherein the diameter at the annulus end is less than the diameter at the sinotubular junction end and the template sidewall is tapered towards the annulus end.
A tissue marking device comprising a prosthesis template having an annulus end and a sinotubular junction end, wherein a diameter of the annulus end is less than a diameter of the sinotubular junction end and a marker having a marking tip that interfaces with notches of the prosthesis template, wherein the marker is separately positionable from the prosthesis template.
A tissue marking device comprising a prosthesis template having an annulus end, a sidewall terminating at the annulus end, and a sinotubular junction end, wherein a diameter of the annulus end is less than a diameter of the sinotubular junction end, the prosthesis template sidewall being tapered towards the annulus end and comprising a marking element configured to mark tissue at particular positions relative to the prosthesis template.
Dependencies are inferred from the claim text.