Syringe pump blockage pressure detection and processing device and method

Abstract

The invention discloses a blocking pressure detection and processing device for a syringe pump, comprising: a base; a lead screw, which can be connected to the base in a forward or reverse rotation; The injection head; the pressure sensor, which is fixed on the machine base; and the force-transmitting element, which is fixed on the pressure sensor, and the first end of the force-transmitting element is axially pre-pressed on the end of the lead screw to press the axial pressure of the lead screw to the pressure sensor. The invention also discloses a method for detecting and processing the blocking pressure of the syringe pump, comprising: detecting the blocking pressure of the syringe pump; controlling the stepper motor according to the difference between the blocking pressure and the set value, and in the step of detecting and processing the blocking pressure of the syringe pump, making The force-transmitting element is pre-compressed on the end face of the lead screw and always remains pressed against the end face of the lead screw. The invention has good stability and can detect and process the blocking pressure of the syringe pump on the pusher head in real time, so that the performance of the syringe pump is good and an alarm is issued when the syringe pump falls off due to human reasons.

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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