Pneumatic impact system with digital display screen

Abstract

The invention discloses a pneumatic impact system with a digital display screen. The impact system can be used for providing an accurate high-pressure gas output amount through a pressure sensor, can be applied to a microjet injector for intradermic injection, hypodermic injection or muscle fluid injection, and can be applied to powder jet of solid powder.

Description

technical field [0001] The invention relates to a pneumatic impact system with a digital display screen, which can provide accurate output high-pressure gas volume, can be used for micro-jet injectors for intradermal injection, subcutaneous injection or intramuscular fluid injection, and can also be used for powder Spray solid powder. Background technique [0002] Using high-pressure gas to achieve micro-jet or powder injection, the principle is to use high-pressure gas to generate instantaneous high pressure to force the drug to be extruded from the fine air to form a high-pressure jet, so that the drug can quickly penetrate the skin of the human body or animal to reach the best part of drug absorption. [0003] The technical key point of micro-jet high-pressure injection is to realize the jet introduction of drugs. For this reason, a power system with strong driving force and fast response is required to provide pulse force to impact and push the piston in the closed drug ...

AI Technical Summary

Problems solved by technology

Due to the limitation of the spring as a power source, only one injection tool with injection strength is available, and the syringe still has the following disadvantages: (1) the spring body needs to be compressed, reset, aligned, constrained, etc. before use and during use. The series preparation process and subsequent safety triggers need special guarantees. The internal design of the corresponding power system is very complicated, with many manufacturing processes and inconvenient clinical use; (2) The mechanical stability and fatigue problems of the spring system itself may occur during use. Mechanical failure, and the power of the spring decays with the increase in the number of uses, so it needs to be replaced regularly; (3) When the spring body hits the piston during injection, it produces a strong vibration and makes a loud sound, which brings an alternative sense of discomfort to the user; commercially available Spring needle-free syringes are not only accompanied by loud noises during clinical use, but also cause visible erythema and even trauma at the injection site due to the impact of the needle tube on the skin

In addition, the traditional compressed gas method needs to be equipped with high-pressure gas tanks and corresponding air compression devices, which are bulky, expensive, energy-consuming and time-consuming, and extremely inconvenient to use

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