发明名称 |
Pneumatic controls for ophthalmic surgical system |
摘要 |
A pneumatic control system for providing pressurized air and vacuum to ophthalmic microsurgical instruments. The pneumatic system is constructed in a drawer assembly to allow it to be readily inserted into or removed from a modularly constructed cabinet of a microsurgical control console. In addition, the pneumatic system improves upon existing pneumatic control systems by providing a third mode of microscissors operation from a single-pneumatic port. The third mode is made possible by a high speed three-way solenoid control valve which provides rapid pulses of air to the pneumatic port. A second improvement involves the use of a pneumatic pressure transducer to monitor pneumatic pressure being supplied to the pneumatic system in order to recognize non-hazardous transient drops in air pressure which can occur under certain normal operating conditions. A third improvement relates to the use of an intraocular pressure accumulator downstream from a final solenoid-operated pinch valve, which reduces fluctuations in air pressure and has other advantages.
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申请公布号 |
US5417246(A) |
申请公布日期 |
1995.05.23 |
申请号 |
US19930127921 |
申请日期 |
1993.09.27 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
PERKINS, JAMES T.;APPELBAUM, PETER F.;PAINTER, JOHN A. |
分类号 |
A61B17/00;A61B18/12;A61B18/14;A61B19/00;A61F9/007;A61F9/013;A61M1/00;(IPC1-7):F16K11/00 |
主分类号 |
A61B17/00 |
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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