Blocking detection device and method for nutrition pump and nutrition pump

Abstract

The invention belongs to the field of nutrition pumps. The invention discloses a blockage detection device and method for a nutrition pump and the nutrition pump. The device comprises a sliding piece,a magnetic piece and a sensor; the sliding piece is slidably arranged on a support of the nutrition pump; the sliding piece comprises a first end face and a second end face which are oppositely arranged; the first end face is used for abutting against a liquid inlet area of a pump pipe arranged on the support, and the second end face is used for abutting against a liquid outlet area of the pump pipe; the magnetic part is arranged on the sliding part; the sensor is arranged on the support and is used for detecting blockage of the pump pipe according to the magnetic induction intensity change of the magnetic part. When the liquid inlet area is blocked, the section of the pump pipe at the liquid inlet area is reduced, so that the sliding part drives the magnetic part to move towards the liquid inlet area; and when the liquid outlet area is blocked, the section of the pump pipe at the liquid outlet area is enlarged, so that the sliding piece drives the magnetic piece to move towards the liquid inlet area. According to the invention, whether the pump pipe is blocked or not can be directly detected, power consumption is smaller, and the requirement for the use environment is low.

Description

technical field [0001] The invention belongs to the technical field of nutrition pumps, and in particular relates to a nutrition pump blockage detection device, a detection method and the nutrition pump. Background technique [0002] The enteral nutrition pump is a nutritional infusion pump for nasal feeding, which can input water, nutrient solution and self-made rice milk of a certain concentration through the nasal feeding tube. During the delivery process, the pump tube is prone to blockage due to bending and other phenomena and the presence of oversized particles in the homemade rice milk. [0003] At present, it is generally judged whether the nutrition pump is in a normal working state or an abnormal working state by using whether there is dripping liquid at the dropping funnel, and then an alarm is given. Since there are many reasons for no liquid dripping from the drip funnel, such as blockage, transmission system failure, and no nutrient solution in the feeding sol...

AI Technical Summary

Problems solved by technology

However, the power consumption of the photoelectric coupling tube is large, and there must be no interference such as dirt and water vapor between the infrared transmitter and the receiver, and the requirements for the use environment are relatively high.

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