Sizing obturator for prosthetic aortic valves

Details Sizing obturator for prosthetic aortic valves Sizing obturator for prosthetic aortic valves

1997-10-24

1998-09-29

Clarke, Robert A.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Heart valve

Having rigid or semirigid pivoting occluder

128774, A61F 224

Patent

active

058140964

ABSTRACT:
An aortic valve sizing obturator apparatus for employment in determining the correct size of an aortic annulus. The apparatus includes a cylindrical obturator body with a flange member formed thereabout. At least the under surface of the flange member is of a non-planar, multi-curvate configuration to thereby be complimentary in shape to the annulus of an aortic valve when seated in the annulus during size determination. Within the cylindrical obturator body can be disposed a handle connector to which a handle can be attached during placement of the obturator apparatus within an annulus. The present invention also includes methodology for determining the size of an aortic valve annulus by employing a plurality of differently-sized aortic valve sizing obturators defined above and individually seating them sequentially within the aortic annulus until an obturator that reflects annulus size is located.

REFERENCES:
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patent: 5360014 (1994-11-01), Sauter et al.
patent: 5489296 (1996-02-01), Love et al.
patent: 5531785 (1996-07-01), Love et al.
Booklet entitled "Carpentier-Edwards.RTM. pericardial Bioprostheses Mini-Synmposium", Chicago, Illinois, Baxter Healthcare Corporation, Edwards CVS Division, Apr. 24, 1993.
Technique fpr Aortic Valve Replacement With the Carpentier-Edwards.RTM. Porcine Aortic Valve Bioprosthesis, Baxter Healthcare Corporation, Edwards CVS Division, 1991.
Brochure entitled "Judge Our Pericardial Valve by its Appearance and You Will Only Get Half the Picture", Edwards CVS Division, Baxter Healthcare Corporation, 1994.
Brochure entitled "Judge Our Pericardial Valve by its Appearance and You Will Only Get Half the Picture", Edwards CVS Division, Baxter Healthcare Corporation, 1989.

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