Needle structure suitable for intravenous infusion needle and intravenous blood sampling needle

Abstract

The invention relates to intravenous infusion needles and intravenous blood sampling needles, in particular to a needle structure suitable for an intravenous infusion needle and an intravenous blood sampling needle. The needle structure comprises a soft plastic tube and a needle mounted at the end of the soft plastic tube. The needle comprises a needle tip and a needle stem. A self-destruction support is fixedly mounted in the middle of the soft plastic tube, and a needle storage cavity for storing the needle is formed in the self-destruction support. When the needle is turned over by using the tail end of the needle as a base point and embedded into the needle storage cavity, the soft plastic tube at the tail end of the needle is folded to seal the infusion hole of the soft plastic tube. A retaining piece for clamping the needle and stopping the needle from withdrawing is arranged in the needle storage cavity. By the arrangement, the needle structure has the advantages that the needle can be stored temporarily in the middle to prevent the needle from being infected by bacteria, liquid medicine leakage can be prevented during self-destruction, and the needle structure is simple to operate and free of potential safety hazards.

Description

technical field [0001] The invention relates to a venous infusion needle and a venous blood collection needle, in particular to a needle head structure suitable for the venous infusion needle and the venous blood collection needle. Background technique [0002] ZL201210093841.2 discloses a disposable anti-needle puncture venous blood collection needle, including a needle sheath, venous needle tube, needle handle, thin hose, needle seat, puncture needle seat, blood collection needle tube, rubber sheath and needle puncture guard After the needle is pulled out, you only need to pull the needle handle back into the anti-needle sheath, so as to prevent the bloody needle from accidentally stabbing others and causing infection, thereby enhancing the protection of medical staff. [0003] However, when it self-destructs, it cannot prevent the liquid medicine in the needle tube from continuing to flow out, causing it to spill on the ground, easily breeding bacteria, affecting the sani...

AI Technical Summary

Problems solved by technology

[0005] In addition, the needle handles on the market are usually mixed with color masterbatch. The reason is to identify the model of the needle tip. However, the liquid medicine must enter the needle tip through the needle handle. The mixed color masterbatch makes the needle handle a safety hazard.

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