Disposable adjustable injection device for insulin injection

Abstract

The invention discloses a disposable adjustable injection device for insulin injection. The device comprises a protection cover, a disposable syringe needle, an injection refill sleeve, a main deviceshell, an injection refill and an adjusting assembly, a second boss is arranged at one end of the main device shell, and the injection refill sleeve is installed on the outer portion of the second boss; a threaded groove is formed in one end of the injection refill sleeve, an outer thread of the second boss is in mutual threaded connection with the threaded groove, and a first boss is arranged atthe other end of the injection refill sleeve; the outer portion of the first boss is in threaded connection with the disposable syringe needle, a steel needle is inserted in the disposable syringe needle, and the injection refill is installed in the injection refill sleeve; the protection cover sleeves the outer portion of the injection refill sleeve, the adjusting assembly is arranged at the other end of the main device body shell, a fixed sleeve is installed in the main device body shell, and one end of the fixed sleeve protrudes outward to form a flange part. The device has the advantages that the operation is simple, the waste is avoided, and the safety performance is good.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable adjustable injection device for insulin injection. Background technique [0002] Insulin injection is an important way to control diabetes and improve the quality of life of patients. Insulin pen is one of the tools for completing injection. It completes injection through replaceable disposable pen core, and its injection needle is also disposable. Because of its safety, portability and easy operation, it is used by the majority of diabetic patients. [0003] Since the insulin content in the pen core is often greater than the amount of each injection, one insulin pen core needs multiple injections. When injecting insulin, first adjust the dose by rotating the adjustment cap, and then press to squeeze out the liquid. If the operation error exceeds the specified scale value during rotation, you need to remove the refill, return the push rod, and then reinstall...

AI Technical Summary

Problems solved by technology

When injecting insulin, first adjust the dose by rotating the adjustment cap, and then press to squeeze out the liquid. If the operation error exceeds the specified scale value during rotation, you need to remove the refill, return the push rod, and then reinstall it. Pen refills are not only cumbersome to operate, but the opened refills will be exposed to the outside environment and cause pollution; before each injection of premixed insulin, you need to shake the insulin pen up and down to mix the remaining insulin until it turns white injection

In order to mix the remaining insulin evenly, it should be ensured that the premixed insulin in the insulin cartridge is greater than 12 units. If it is less than 12 units, it is necessary to replace the new cartridge in time, resulting in waste of insulin remaining in the original cartridge; The last disposable needles are often thrown directly into the trash can. The sharp needles are a safety hazard, which can easily cause scratches and spread diseases

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