发明名称 |
Flow control system |
摘要 |
A dual controller for an IV infusion system comprises a microprocessor to concurrently control the rate of infusion through two IV units. The control of the rate of infusion is provided by a stepper motor driven regulator which is selectively positionable for compressibly engaging the IV tubing. A flow sensor employs a case of infrared transparent material which mounts to a drip chamber of the infusion unit. The flow sensor provides an output pulse to the microprocessor in response to a drop of fluid in the drip chamber interrupting a light path extending from an array of light emitting diodes and a photo transistor. The light emitting diodes are pulsed between energized and non-energized states so that changes in the ambient light level do not adversely effect the sensed drop rate.
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申请公布号 |
US4681563(A) |
申请公布日期 |
1987.07.21 |
申请号 |
US19850727840 |
申请日期 |
1985.04.26 |
申请人 |
CENTAUR SCIENCES, INC. |
发明人 |
DECKERT, CLINTON;WILSON, LARRY L. |
分类号 |
A61M5/168;(IPC1-7):A61F2/00 |
主分类号 |
A61M5/168 |
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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