Block pressure detection and processing equipment and method for injection pump

Abstract

The invention discloses a blockage pressure detecting processing device for injection pumps, comprising a frame; a lead screw which is connected with the frame via positive or reversed rotation, is provided with a nut and is connected with the bolus injection head of the injection pump via the nut; a pressure sensor fixed on the frame; and a force transmission component fixed on the pressure sensor, whose first end is axially preloaded on the end of the lead screw for transmitting the axial pressure of the lead screw to the pressure sensor. The invention further discloses a blockage pressure detecting processing method for injection pumps, comprising: detecting the blockage pressure of an injection pump; according to the difference between the blockage pressure and a preset value, controlling a step motor, to preload the force transmission component on the end face of the lead screw in the detection and treatment on the blockage pressure of the injection pump, and keeping the force transmission component against the end face of the lead screw. The invention has high stability, can real-timely detect the blockage pressure of injection pump on the bolus injection head, thereby confirming the performance of injection pumps and alarming for dropped injection pump caused by manual factors.

Description

Technical field [0001] The present invention relates to a medical syringe pump detection and processing device and method, specifically, to a medical syringe pump obstruction pressure detection and processing device and method. Background technique [0002] Medical micro-injection pump is an auxiliary medical device for infusion, suitable for various infusion situations that require precise control of infusion speed and volume. Currently, it is often used in hospitals, especially ICU wards, and is mostly used to inject original medicinal solutions to patients. The amount of infusion is related to personal life safety. Therefore, the requirements for the infusion volume of micro-injection pumps are very high. [0003] During the liquid flow process, blocking pressure is generated due to reasons such as the pipeline being too long, bent, or the liquid medicine being viscous, which increases the blocking pressure on the wall of the syringe pump, making it difficult or impossibl...

AI Technical Summary

Problems solved by technology

However, the force transmission element of the existing device cannot always be preloaded on the lead screw. Due to vibration or assembly errors, when detecting and processing the blocking pressure of the syringe pump, the force transmission element is separated from the pressure sensor, resulting in It is impossible to detect and process the blocking pressure of the syringe pump in real time, so the stability of the existing device is not good when detecting and processing the blocking pressure

This affects the performance of the micro-injection pump, which is dangerous for patients in the ICU ward, especially when injecting the original solution of the drug solution

And the syringe pump sometimes falls off due to human reasons, so the system needs to give an alarm in time

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