Middle ear drum ventilation and drainage technique

Details Middle ear drum ventilation and drainage technique Middle ear drum ventilation and drainage technique

1987-12-18

1988-10-04

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 2700

Patent

active

047753706

ABSTRACT:
A ventilation and drainage tube for a child's ear drum having a preferably tapered lumen increasing toward the ear canal side of the tube for relieving middle ear pus and other pressure build-up and automatically washing out crusts and other plugging materials.

REFERENCES:
patent: 4650488 (1987-03-01), Bays et al.
patent: 4695275 (1987-09-01), Bruce et al.

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