Stabilizer for a middle-ear columellate prosthesis

Details Stabilizer for a middle-ear columellate prosthesis Stabilizer for a middle-ear columellate prosthesis

1987-01-14

1988-04-26

Frinks, Ronald L.

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

Ear or nose prosthesis

623 16, A61F 218, A61F 228

Patent

active

047402091

ABSTRACT:
A stabilizer (18) for a total or partial middle-ear prosthesis ending in a columella (23) bearing against the base (8) of the stapes. The stabilizer (18) has a plane substantially oval support surface (19) which matches the shape of the surface of the base (8) and is received between the remnants (20) of the stapedial arch (7). The body of the stabilizer (18) narrows from its support surface (19) to a substantially cylindrical end portion (21) and is provided at its center with a cylindrical through hole (22) which matches and receives the cylindrical contour of the end of the columella (23). This stabilizer (18) prevents the lateral displacement of the columella (23) on the base (8) and maintains sound transmission between the latter and the columella.

REFERENCES:
patent: 3196462 (1965-07-01), Robinson
patent: 3931648 (1976-01-01), Shea
patent: 4281419 (1981-08-01), Treace
patent: 4601723 (1986-02-01), McGrew
Search Report FR8601074 including 1 annex page.

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