Deep venipuncture needle

Abstract

The invention relates to the field of medical instruments, in particular to a deep venipuncture needle which comprises a puncture needle body, wherein the puncture needle body is a slender needle bar; the rear half of the needle bar is bent into a puncture needle circle part; the extension part at the left side end of the puncture needle circle part serves as a puncture needle front end part; the right side end of the puncture needle circle part serves as a puncture needle tail end. The slender needle bar is adopted, the rear half of the needle bar is bent into a circle, the puncture needle front end part and the puncture needle tail end are on the same horizontal line, and a syringe interface is connected to the puncture needle tail end. A guiding conducting wire is replaced by the puncture needle body, so that puncture time is reduced, and hazards of puncture failure and vessel damage are reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a deep vein puncture needle. Background technique [0002] Deep vein puncture catheterization is a diagnosis and treatment operation widely used in clinical work. It uses a puncture needle to guide and place a special venous catheter percutaneously in deep veins (femoral vein, subclavian vein, jugular vein, etc.) internal vein, etc.) Through this venous catheter, fluid infusion and central venous pressure can be measured. The deep venous catheter has the advantages of long retention time, fast infusion speed, wide variety of infusion, and convenient nursing. [0003] Traditional deep vein puncture catheterization needs to use a thick puncture needle to penetrate into the vein first, insert a guide wire into the lumen of the thick puncture needle, then pull out the thick puncture needle, fix the guide wire and insert the venous catheter along the guide wire , and finally pull out...

AI Technical Summary

Problems solved by technology

Traditional deep vein puncture catheterization has complicated steps, and it is not easy to fix during the process of inserting the guide wire and inserting the venous catheter along the guide wire, which may easily cause the guide wire or venous catheter to damage the vessel wall and slip out of the blood vessel. In actual clinical operation, it will undoubtedly increase the operator's puncture failure rate and the patient's safety hazard

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