发明名称 |
Middle ear drum ventilation and drainage technique |
摘要 |
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.
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申请公布号 |
US4775370(A) |
申请公布日期 |
1988.10.04 |
申请号 |
US19870135537 |
申请日期 |
1987.12.18 |
申请人 |
BERRY, YALE J. |
发明人 |
BERRY, YALE J. |
分类号 |
A61F11/00;(IPC1-7):A61M27/00 |
主分类号 |
A61F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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