Easy-to-operate large-inner-diameter triple trocar device and application

Abstract

The invention discloses a large-inner-diameter triple trocar device and an application thereof.The large-inner-diameter triple trocar device comprises a plastic sterile packaging sleeve, a first sleeve head, a second sleeve head, a puncture steel needle head, a blood storage bin and a removable plug, wherein pinching piece grooves are formed in the two sides of one end of the plastic sterile packaging sleeve; a slope buckle is arranged at the end, close to the pinching piece open grooves, in the plastic sterile packaging sleeve; the plastic sterile packaging sleeve is fixedly connected with the first sleeve head in a clamped mode through the slope buckle, and the center of the end, close to the plastic sterile packaging sleeve, of the first sleeve head fixedly communicates with a first plastic sleeve; a second plastic sleeve is slidably arranged in the first plastic sleeve in a sleeved mode; and a hollow steel needle is slidably arranged in the second plastic sleeve in a sleeved mode.According to the device, the first plastic sleeve and the second plastic sleeve are arranged and matched with the hollow steel needle, the advantages of a thin needle and a thick needle can be combined, and the purposes that only the puncture difficulty of the thin needle exists, and the using effect of the thick needle is achieved are achieved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an easy-to-operate large inner diameter triple trocar device. Background technique [0002] The indwelling needle refers to a needle that penetrates into the blood vessel once and can be reused many times during long-term infusion, which can reduce the pain of multiple injections for patients. [0003] The existing trocar is a double-joint needle, and the plastic cannula placed in each puncture has a constant inner diameter. Fine needles are easy to puncture successfully, but there are disadvantages such as insufficient lumen, easy discount, easy blockage, easy prolapse, repeated adjustments, and easy bleeding. The thick needle has the advantages of large lumen, not easy to fold, not easy to block, not easy to come out, and not easy to bleed without repeated adjustments, but it has the disadvantages of being difficult to puncture and easy to bleed. Contents of the in...

AI Technical Summary

Problems solved by technology

Fine needles are easy to puncture successfully, but there are disadvantages such as insufficient lumen, easy to discount, easy to block, easy to come out, and need to be adjusted repeatedly, resulting in easy bleeding.

The thick needle has the advantages of large lumen, not easy to fold, not easy to block, not easy to come out, and does not need repeated adjustments so it is not easy to bleed, but it has the disadvantages of being difficult to puncture and easy to bleed

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