Sealing cover body for needle cylinder
The technology of a cover body and a syringe is applied in the field of medical appliances, which can solve the problems of easy contamination of needles by bacteria, inability to seal and protect the needles, increase waste, etc., and achieve the effects of being difficult to accidentally drop, easy to remove, and difficult to accidentally rotate.
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[0032] Example: as attached Figure 1-4 As shown, a sealing cover used on a syringe includes a protective tube unit 1 whose end is hingedly arranged on the shaft body a of the needle installation tube, and which is arranged in the protective tube unit 1 and sleeved on the needle installation tube b The sealing sleeve unit 2 on the top, the end of the protective tube unit 1 away from the cylinder c is rotated toward the side of the cylinder c to expose the needle d, and the protective tube unit 1 is used to push outward when rotating The sealing sleeve unit 2.
[0033] In the prior art, one end of the needle installation tube b is thick and the other end is thin, the needle head and the common rubber needle sleeve are arranged at the thin end, and the two needle installation tube shafts a form a complete rotating cylinder, ensuring The improved rotary needle cover in the prior art can be effectively rotated to open and close.
[0034] In this embodiment, while the sealing sle...
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