Negative pressure adsorption type hypodermic injection unit

Abstract

The invention discloses a negative pressure adsorption type hypodermic injection unit, which relates to a unit for carrying out hypodermic injection of insulin and other drugs, and consists of an adsorption device, an air compression device, a quick air releasing device and an injection syringe, wherein an absorber 1 is connected with an air compressor 3 through an air tube 2 so that the air in the absorber 1 can be quickly pumped out through the air compressor 3, negative pressure is formed in the absorber 1 so that the skin shrinks and has a bulge, and the bulge height of the skin can be adjusted through the air compressor 3. The injection syringe 4 is connected with the absorber 1 through syringe steps in a sealing way, when the skin shrinks and has the bulge, a syringe needle is automatically inserted into the skin, and then drug injection can be carried out. The quick air releasing device is formed by a rubber plug 5, when the rubber plug 5 is pulled out, the internal air pressure of the absorber 1 returns to the atmospheric pressure, the skin diastoles and returns to be smooth, and the syringe needle is automatically pulled out from the skin. The invention has the hypodermic injection characteristics of easy skin contraction, quick needle insertion, convenient injection and use, wide application scope and the like, and solves the problem that the old and the slimmer people are difficult to be injected with insulin and other subcutaneous injection drugs.

Description

technical field [0001] The invention relates to a subcutaneous injection device, in particular to a subcutaneous injection device for subcutaneous injection using negative pressure adsorption. technical background [0002] Injection is the injection of liquid or gas into the human body with the aid of medical devices such as syringes for the purpose of diagnosing, treating or preventing diseases. The current injection routes include the following: intradermal injection, subcutaneous injection, intramuscular injection, intravenous injection, arterial injection, etc. For the vaccination of vaccines and bacterins, local anesthesia, and the injection of certain drugs such as insulin, it is necessary to use the subcutaneous injection method of injecting the drug into the subcutaneous tissue. Commonly used subcutaneous injection sites include outer upper arm, abdomen, outer thigh, buttocks, etc. Different parts have different effects. At present, subcutaneous injection patients ...

AI Technical Summary

Problems solved by technology

This injection method will have certain difficulties for different groups of people, such as the elderly are inflexible and difficult to self-inject, and the thin person is difficult to inject the drug into the subcutaneous tissue due to too little fat, etc.

In addition, some patients, such as diabetics, need frequent injections of insulin and other medicaments, and due to the limitations of the existing injection technology, they can only inject at the front of the body where it is easy to inject, such as the abdomen. Cause local atrophy of subcutaneous fat tissue, forming unsightly orange peel-like depressions and local hardening of the skin

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