A disposable intravenous infusion safety needle

Abstract

A novel disposable safe venous transfusion needle consists of a puncture needle and an externally-sleeved needle, wherein the puncture needle and the externally-sleeved needle are provided with an extending arm and a limit slot which are mutually matched, a puncture needle handle and an externally-sleeved needle handle are equipped with reverse sliding drive blocks, so that the puncture needle and the externally-sleeved needle are driven to slide oppositely. When the venipuncture is performed, a sharp point of the puncture needle is completely exposed outside a plain end of the externally-sleeved needle due to the fact that the sharp point can puncture conveniently; in the transfusing process after the venipuncture, the sharp point of the puncture needle is completely retracted inside plain end of the externally-sleeved needle, a transfusion needle becomes a blunt device with a plain end, so that a blood vessel is not punctured broken to enable the need to roll. In the puncturing process, the working habits of medical stuffs are not changed, so that the novel disposable safe venous transfusion needle is convenient to popularize and apply; furthermore, after the transfusion, the sharp point of the puncture needle drawn out is in the plain end of the externally-sleeved needle, thereby effectively protecting the nursing staffs; and in the product design, the original puncture needle is hardly changed, so that the production cost is low, and the needle can be conveniently disposable.

Description

[0001] Field [0002] The invention relates to an intravenous infusion needle, in particular to a novel disposable intravenous infusion safety needle. Background technique [0003] The puncture needles of the disposable venipuncture needles that are generally used now have the following problems in use: first, common needles are likely to cause needle rolling (needle running), and the main reason for needle rolling is that the end of the disposable venipuncture needle is designed to The sharp blade is convenient for venipuncture, but after venipuncture, the back end of the venous needle is fixed on the patient, and the sharp blade is in the patient's blood vessel; the patient will inevitably have slight movement during the infusion process, and the sharp blade It may pierce the blood vessel and enter the subcutaneous tissue, causing needle rolling. After the needle is rolled, because the fluid cannot continue to enter the vein, it will remain in the tissue, and the patient's ...

AI Technical Summary

Problems solved by technology

[0003] The puncture needles of the disposable venipuncture needles that are generally used now have the following problems in use: first, common needles are likely to cause needle rolling (needle running), and the main reason for needle rolling is that the end of the disposable venipuncture needle is designed to The sharp blade is convenient for venipuncture, but after venipuncture, the back end of the venous needle is fixed on the patient, and the sharp blade is in the patient's blood vessel; the patient will inevitably have slight movement during the infusion process, and the sharp blade It may pierce the blood vessel and enter the subcutaneous tissue, causing the needle rolling phenomenon.

Although it effectively solves the problem of needle rolling, the indwelling needle has high manufacturing cost and high price, which increases the financial burden on the patient; Disinfection is required, heparin sealing is required after use, and the operation is complicated; moreover, the indwelling needle still needs to be connected with the intravenous infusion set and the intravenous needle during infusion, and the problem of accidentally injuring nurses by the needle still exists

The extracted steel core has a sharp edge, which also has the risk of accidentally injuring people and causing infection

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