An inflatable squeeze type infusion device

Abstract

The invention relates to an inflatable extrusion type transfusion device, which belongs to the field of medical equipment. The main body is provided with an upper inlet hole, a boss with an upper outlet cavity, and at least two round table groups whose number of round tables decreases in turn from left to right; the main body cavity is equipped with an air bag and a medicine bag, and the medicine bag infusion tube is equipped with a needle and a flow valve; the base is provided with a lower inlet hole, a cavity with a lower outlet cavity, an air storage chamber connected with the lower outlet cavity, and a body cavity group composed of a body cavity; the upper and lower inlet and outlet chambers and the valve plate constitute the upper and lower inlet and outlet valves; the main body is installed On the base, the boss crimps the partition in the cavity, and the round table crimps the piezoelectric driver in the body cavity through the sealing ring and forms the upper and lower compression chambers with the main body and the base respectively. The upper and lower compression chambers in the same body cavity group are connected in parallel. The upper and lower compression chamber groups are connected in series to form upper and lower compression units connected in parallel; the upper inlet and outlet holes are respectively connected to the gas storage chamber through parallel and series valves, the upper inlet hole is equipped with an inlet valve, and the upper outlet hole is connected through an output valve It communicates with the air bag with deflation valve.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an inflatable squeezing type transfusion device. Background technique [0002] Injection mainly includes intravenous injection, intramuscular injection and subcutaneous injection. Intravenous injection is also called infusion drug administration. Most of the existing infusion devices are composed of infusion bottles, infusion tubes and infusion stands. This infusion mode will bring many problems in actual use: the flow rate is adjusted manually, and the flow control accuracy is not enough; the infusion bottle needs to be held high by others when the patient walks or goes to the toilet, which is inconvenient to move and the height of the infusion bottle is not high enough. Make the blood flow back; the patient or the nursing staff need to watch for a long time, if the infusion is not found in time, it may cause an accident; the liquid medicine is in contact with the a...

AI Technical Summary

Problems solved by technology

This infusion mode will bring many problems in actual use: the flow rate is adjusted manually, and the flow control accuracy is not enough; the infusion bottle needs to be held high by others when the patient walks or goes to the toilet, which is inconvenient to move and the height of the infusion bottle is not high enough. Make the blood flow back; patients or nurses need to be guarded for a long time, if the infusion is not found in time, it may cause accidents; the liquid medicine is in contact with the air, and the ambient air may be polluted when the air is unclean

In addition to the above direct problems, sometimes the infusion time is shortened by reducing the amount of solution, speeding up the infusion speed, etc., which not only increases the burden on the heart, but also affects the therapeutic effect: intramuscular injection and subcutaneous injection in a relatively short period of time. The biggest disadvantage of injecting into muscle or subcutaneous is that the blood drug concentration varies greatly within an injection cycle, which is not conducive to the effective absorption and utilization of drugs, because most drugs have a better concentration range in the human body, and when the drug concentration is too high Has toxic side effects, if it is too low, it will have no therapeutic effect

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