Negative pressure assistor of syringe
A technology of an auxiliary device and a syringe, which is applied in the fields of medical science, inoculation and ovulation diagnosis, diagnosis, etc., can solve the problems of inconvenient and unstable discharge of contents by controlling the magnitude of negative pressure, and achieve convenient control, improved work efficiency, and accurate puncture. Effect
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[0025] Figure 1-Figure 3 It shows a syringe negative pressure assisting device, including a syringe 1, a detachable negative pressure assisting structure 2 sleeved at the end of the syringe 1,
[0026] The negative pressure auxiliary structure 2 includes a detachable semi-cylindrical cylinder 21, a finger stopper 22 placed on the semi-cylindrical cylinder 21, one end placed in the semi-cylindrical cylinder 21 and the other end protruding from the semi-cylindrical cylinder. The push rod 23 of the cylinder 21, the connecting plate 24 that is fitted with the semi-cylindrical cylinder 21 and fixedly connected with one end of the push rod 23 placed in the semi-cylindrical cylinder 21, and the connecting plate 24 placed at the other end of the push rod 23 Press ring 25,
[0027] The semi-cylindrical barrel 21 is provided with a positioning groove 3 for matching with the syringe 1 , and the connecting plate 24 is provided with a connecting groove for matching with the syringe 1 . ...
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