发明名称 |
LOW PRESSURE MEASUREMENT DEVICES IN HIGH PRESSURE ENVIRONMENTS |
摘要 |
The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed to fluid flows at higher pressures than its overpressure rating, a novel valve is used that closes a protected leg in which the transducer is located. The various exemplary embodiments of such valves each have a high pressure input, one or more low pressure inputs, and an output. In operation, when a high pressure fluid flow occurs at a high pressure input, such valves automatically close the low pressure inputs. Alternatively, a novel transducer system is presented, which automatically limits the effective pressure sensed by a transducer to a certain maximum. A valve body (203) contains saline/transducer (220) and a patient outlet (221) port. |
申请公布号 |
WO03050491(A3) |
申请公布日期 |
2003.11.13 |
申请号 |
WO2002US41654 |
申请日期 |
2002.12.09 |
申请人 |
ACIST MEDICAL SYSTEMS, INC. |
发明人 |
WILSON, ROBERT, F.;DUCHON, DOUGLAS, J.;GABBARD, MARK;MOHIUDDIN, KHADIR;MCPEAK, THOMAS |
分类号 |
A61B5/00;A61B5/02;A61B5/0215;A61B5/103;A61B5/117;F16K15/14;F16K31/12;G01L |
主分类号 |
A61B5/00 |
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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