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 invention relates to a detection and processing device and method of a medical injection pump, in particular to a detection and processing device and method for blocking pressure of a medical injection pump. Background technique [0002] Medical micro-injection pump is a kind of infusion auxiliary medical equipment, which is suitable for various infusion occasions that require precise control of infusion speed and infusion volume. Currently, it is often used in hospitals, especially ICU wards, and is mostly used to inject patients with liquid medicine. The infusion volume is related to personal life safety, therefore, the requirements for the infusion volume of the micro-injection pump are very high. [0003] During the flow of the liquid, due to reasons such as too long pipeline, bending, or viscous liquid medicine, blocking pressure is generated, which increases the blocking pressure on the tube wall of the syringe pump, making it difficult or im...

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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