Detection device for control motor of peristaltic pump
A detection device, peristaltic pump technology, applied in the components of the pumping device for elastic fluid, machine/engine, liquid fuel engine, etc., can solve false alarm, photoelectric switch function failure, heat melting and easy to flow to photoelectric On the switch, and solidified on the switch surface of the photoelectric switch, etc., to avoid influence and avoid detection failure.
Inactive Publication Date: 2010-02-10
BEIJING AEONMED
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Problems solved by technology
However, in some cases, due to the poor control of the amount and uniformity of the grease in the peristaltic pump head, when there is a lot of grease in the peristaltic pump head, after the peristaltic pump head has been continuously operated for a long time, the grease will melt and easily Flow to the photoelectric switch, and solidify on the switch surface of the photoelectric switch, resulting in the failure of the photoelectric switch function, causing false alarms, and causing the infusion pump to fail to work normally
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[0015] In the following, the present invention will be described in detail by taking a detection device for a peristaltic pump head of an infusion pump as an example in conjunction with the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to only the embodiments presented herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0016] figure 1 A detection device for a peristaltic pump head of an infusion pump according to a preferred embodiment of the present invention is schematically shown. Such as figure 1 As shown, the motor 1 drives the peristaltic pump head 2 of the infusion pump to rotate through belt transmission, so that the pump piece 9 moves left and right to squeeze the infusion set for infusion. exist figure 1 It can be seen that there is also a detection devic...
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The invention provides a detection device for a peristaltic pump, which comprises a Hall element arranged on a circuit board fixed to a fixed shell of the peristaltic pump, and a magnet which is arranged on a rotating part of the peristaltic pump relative to a rotation axis of the peristaltic pump in an offset mode. The detection device avoids the detection failure caused by the presence of a foreign matter on the surface of a photoelectric switch when the photoelectric switch is adopted for the detection in the prior art, and can detect the working state of the peristaltic pump accurately inreal time and avoid influencing the safety of a patient caused by the fault of a motor or the peristaltic pump.
Description
technical field [0001] The invention relates to a detection device for a peristaltic pump head, more particularly, to a detection device for a peristaltic pump head of an infusion pump. Background technique [0002] At present, infusion pumps generally use a stepping motor as a power source to drive the peristaltic pump head to squeeze the infusion set to achieve the purpose of delivering liquid. In order to avoid abnormal infusion caused by motor or peristaltic pump head operation failure, thereby causing danger to patient safety, there is usually a detection system to detect the operation of the peristaltic pump head. When the motor is running, the peristaltic pump head rotates accordingly, and the detection system judges whether the peristaltic pump head is faulty according to the detected signal, and when an abnormal signal is detected, the infusion pump stops the infusion and sends out an alarm through program control. [0003] There are many designs of existing detect...
Claims
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Login to View More IPC IPC(8): F04B53/00F04B43/12A61M5/142
Inventor 杜雅飞
Owner BEIJING AEONMED