Safety type sealed venous detaining needle

Abstract

The invention relates to a safe sealed vein needle, which engages the puncture needle tube with the retrain tube, wherein, the tail of retrain tube is connected with the tube base. The invention is characterized in that the tail chamber of retrain tube contains a safe device, comprising a needle sharp safe cap whose inner side contacts the puncture needle tube, a bottom plate sliding sheathed on the puncture needle tube while its circumference contacts the inner side of tube, a flexible arm in suspended state while its front end is connected with the outer side of safe cap and the flexible arm functions on the safe cap whose retrain force is toward to the puncture needle tube when the tail uses bottom plate as base, a bottom plate anti-drop clamper at the front of puncture needle tube while relative to the position that the bottom plate at the anti-drop clamper the puncture needle is clamped into the safe cap. The invention can automatically protect the puncture needle tube when the puncture needle tube moves back from the retrain tube, without hand operation.

Description

technical field [0001] The invention relates to a medical device, more specifically a venous indwelling needle. Background technique [0002] Venous indwelling needle is a kind of medical device for indwelling infusion in vein, as shown in Figure 1, in the outside of puncture needle tube 1, soft indwelling sleeve 2 is set, and puncture needle tube 1 and indwelling sleeve 2 are punctured together. After the patient's venous puncture is completed, the puncture needle tube 1 is pulled out from the indwelling sleeve 2, and at the same time, the indwelling sleeve 2 stays at the puncture site, and the indwelling sleeve 2 is used to replace the puncture needle tube 1. Connecting tubes, infusion tees and other joint components are connected to the infusion circuit. Compared with the steel puncture needle tube, this form of replacing the puncture needle tube with a flexible tube is easier to maintain its correct puncture position in the vein, basicall...

AI Technical Summary

Problems solved by technology

[0003] However, there is a problem that cannot be ignored in actual operation. Because the needle point of the puncture needle tube is extremely sharp, the needle point part of the needle tube is completely exposed after the needle tube is pulled out from the cannula of the indwelling needle, which is very easy to cause accidental injury and infection. physical health threat

[0004] The existing technology to solve the above problems is to cooperate with the puncture needle tube protective cover, but all forms of protective cover need a special manual operation after withdrawing from the puncture needle tube before they can be put into protection. Potential safety hazard, not only inconvenient, but also affects the normal work efficiency of medical staff

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