Method of determining size of cardiac prosthesis
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Abstract
A sizing apparatus and a method for ascertaining a size for a cardiac prosthesis are disclosed. Specifically, the sizing is implemented by positioning a contact member at a patient'"'"'s heart valve for engagement by one or more viable leaflets of the patient'"'"'s valve. The size is determined based on the engagement between the contact member and the leaflet (or leaflets) of the patient'"'"'s valve.
23 Citations
39 Claims
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1-18. -18. (canceled)
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19. A method to facilitate selecting a cardiac prosthesis for implantation at a patient'"'"'s heart valve, the method comprising:
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positioning a contact member to an appropriate position relative to at least one leaflet of the patient'"'"'s heart valve;
urging the at least one leaflet of a patient'"'"'s heart valve toward the contact member, the contact member having a known cross-sectional dimension; and
determining sizing requirements for the cardiac prosthesis based on coaptation between the at least one leaflet and the contact member. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A sizing method to facilitate selecting a cardiac prosthesis for implantation at a patient'"'"'s heart valve, the method comprising:
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positioning a contact member to face at least one functioning leaflet of the patient'"'"'s heart valve; and
ascertaining sizing requirements for the cardiac prosthesis based on coaptation between the at least one functioning leaflet and the contact member. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. A method comprising:
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providing a sizing apparatus, the sizing apparatus comprising a contact member having a curved surface that is configured to be engaged by at least one functioning leaflet of a heart valve within a patient when the contact member is positioned at the heart valve; and
using the sizing apparatus to ascertain sizing requirements for a cardiac prosthesis based on observing engagement between the at least one functioning leaflet and the contact member. - View Dependent Claims (37, 38, 39)
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Specification