发明名称 |
Optical detection of medical pump rotor position |
摘要 |
Rotation of a rotatable assembly of a medical pumping apparatus (100) such as a pump rotor of a rotary peristaltic pump is monitored via electromagnetic radiation (e.g., infrared radiation). The rotatable assembly is formed such that it has portions that are reflective (212) and non-reflective (214) with respect to the electromagnetic radiation. A electromagnetic radiation emitter-detector pair (208) is positioned such that as the rotatable assembly rotates, the reflective and non-reflective portions alternately pass through the electromagnetic radiation emitted by the emitter. The detector receives electromagnetic radiation reflected by the reflective portions, but the non-reflective portions absorb or disperse the radiation such that it is not received by the detector.
An output circuit (218) provides a signal indicating the position of the rotatable assembly as a function of the electromagnetic radiation received by the detector. |
申请公布号 |
EP1932555(A1) |
申请公布日期 |
2008.06.18 |
申请号 |
EP20070123002 |
申请日期 |
2007.12.12 |
申请人 |
COVIDIEN AG |
发明人 |
LEWIS, THOMAS G.;DAVIS, MARK A. |
分类号 |
A61M5/142;A61M5/145;A61M5/172;G01D5/244 |
主分类号 |
A61M5/142 |
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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