Safety indwelling needle

Abstract

The invention discloses a safety indwelling needle which comprises a steel needle, a connecting tube, a vacuum tube and an extension tube. The steel needle is communicated with the extension tube through the connecting tube. The safety indwelling needle is characterized in that an isolation plug is arranged between the steel needle and the extension tube, one end of the extension tube is provided with a heparin cap, the side wall of the heparin cap is provided with an air outlet, steps are arranged on the periphery of the inner side of the air outlet in a surrounding mode, a filter film is welded to the steps, a safety cap is arranged on the outer side of the filter film, and the safety cap is connected to the bottom end of the heparin cap through the connecting tube. According to the safety indwelling needle, the defects of gas propulsion or inverted liquid input caused when medical staff adds medicine into the indwelling needle in the prior art are overcome, the aeroembolism caused by the indwelling needle is avoided, and safety and operability are improved.

Description

technical field [0001] The invention relates to the technical field of medical machinery, in particular to a safety indwelling needle. Background technique [0002] Domestic and foreign companies have invested heavily in the research and development of safe blood collection medical equipment. At present, there are many safe indwelling needles on the market. These safe blood collection equipment have many shortcomings: first, the production cost is high; second, the production process is complicated; third, the production The quality is difficult to guarantee; the fourth is that the operation of medical staff is cumbersome; the fifth is that the safety function is difficult to guarantee. At present, the commonly used disposable indwelling needle needs to be covered with a needle cover to protect the needle before use, for example, to prevent the needle from being bent or collided. During use, when the needle cover is pulled out, it is easy to cause the danger of stabbing, bu...

AI Technical Summary

Problems solved by technology

[0002] Domestic and foreign companies have invested heavily in the research and development of safe blood collection medical equipment. At present, there are many safe indwelling needles on the market. These safe blood collection equipment have many shortcomings: first, the production cost is high; second, the production process is complicated; third, the production The quality is difficult to guarantee; the fourth is that the operation of medical staff is cumbersome; the fifth is that the safety function is difficult to guarantee

During use, when the needle cover is pulled out, it is easy to cause the danger of stabbing, but the real danger lies in the disposal stage after the blood collection is completed. Putting on the needle cover, it is easy to be stabbed, causing serious consequences such as infection of medical staff

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