Insulin-used syringe needle with adjustable injecting depth

Abstract

The invention discloses an insulin-used syringe needle with an adjustable injecting depth. The insulin-used syringe needle comprises a needle seat, a steel needle is connected in the needle seat through a bonding agent, internal threads for connecting the external threads on the front end of an insulin pen are arranged in the needle seat, a limit ring is sleeved on the needle seat, the external threads are arranged on the outer surface of the needle seat, the internal threads are arranged in the limit ring, and the needle seat and the limit ring is connected via engagement of the outer threads. The insulin-used syringe needle has the main beneficial effects that the risk of injecting into a muscle layer by mistake due to over-deep needle insertion is effectively prevented, a patient can adjust the injecting depth according to the self situation of fatness and thinness, so as to select the injecting depth suitable for self, and the practicability is strong.

Description

technical field [0001] The invention relates to a needle for insulin with adjustable injection depth. Background technique [0002] With the increasing number of diabetic patients, daily insulin injections have become very frequent. Insulin pen is a commonly used injection tool for insulin treatment at present. It is used with the needle of insulin pen to complete subcutaneous injection. [0003] Patients mainly choose the abdomen, arms, thighs, and buttocks when injecting. The subcutaneous layer of the arms and thighs is relatively thin, and the skin needs to be pinched before injection. In addition, improper pinching methods can easily cause insulin to be injected into the muscle layer by mistake, resulting in insulin absorption. Too fast, the blood sugar control in the body is unstable, and it will greatly increase the pain of the patient; [0004] Such as figure 1 As shown, the existing needle is composed of a plastic needle base 1 and a steel needle, the needle is co...

AI Technical Summary

Problems solved by technology

The front end 31 of the steel needle enters the subcutaneous layer of the patient, and the rear end 32 of the steel needle is inserted into the rubber stopper of the insulin injection pen to form a passage with the insulin liquid; because of such a needle, the length of the steel needle is fixed and cannot be adjusted. The depth is determined by the patient; at the same time, due to the different fat and thin of the patient, the thickness of the subcutaneous layer is also different, and there is a risk that the patient will penetrate the muscle layer when the needle is inserted too deep.

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