Sealing device for minimally invasive disposable puncture device
A sealing device and puncture device technology, applied in the direction of puncture needles, puncture needles, trocars, etc., can solve the problems that abdominal cavity subsidence affects the normal operation of laparoscopic surgery, the operation cannot be performed normally, and the elastic sealing cap is punctured, etc. Hemorrhage and postoperative infection, compact structure, and reliable sealing performance
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[0020] Refer to attached Figure 1~6 , The minimally invasive disposable trocar sealing device includes a locking and fixing cover 9 , an elastic sealing ring assembly, a compression ring 15 and a positioning guide cover 16 . The upper end of the locking fixed cover 9 is provided with an installation platform 9-1 for installing the elastic sealing ring assembly, and several positioning columns 9-2 are arranged on the installation platform 9-1 for positioning when installing the elastic sealing ring assembly. The upper end of the locking fixed cover 9 is also provided with a positioning guide cover positioning groove 9-3, which is used for positioning and installing the positioning guide cover 16. An installation buckle 9-4 is arranged on the inner side of the lower end of the locking fixed cover, and a gas-blocking sealing sheet pressing protruding ring 9-5 is arranged on the inner side of the locking fixed cover.
[0021] The elastic sealing ring assembly includes elastic se...
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