Otological drain tube

Details Otological drain tube Otological drain tube

1991-06-10

1992-08-11

Hafer, Robert A.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

623 10, 604 8, A61F 218

Patent

active

051375230

ABSTRACT:
A drain tube for implanting in an ear drum is formed having a center body with a circular flange on each end with a cover member over each flange forming a chamber therewith. The cover members have openings therein and the center body has drain holes therethrough having a high L/D ratio to permit proper drain flow from an ear and prevent undesirable flow into an ear. A tab is used for insertion and a method of forming the drain holes is set forth wherein grooves are placed in the surface of a large opening and the grooves closed to form drain holes by a plug placed in the large opening.

REFERENCES:
patent: 3530860 (1970-09-01), Ponce
patent: 3807409 (1974-04-01), Paparella et al.
patent: 3871380 (1975-03-01), Heros
patent: 3916873 (1975-11-01), Wasserman
patent: 3976081 (1976-08-01), Lapidot
patent: 3982545 (1976-09-01), Silverstein
patent: 4094303 (1978-06-01), Johnston
patent: 4168697 (1979-09-01), Cantekin
patent: 4174716 (1979-11-01), Treace
patent: 4695275 (1987-09-01), Bruce et al.
patent: 4712537 (1987-12-01), Pender
patent: 4744792 (1988-05-01), Sander et al.
patent: 4808171 (1989-02-01), Berger
patent: 4964850 (1990-10-01), Bouton et al.

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