A trocar for laparoscopic surgery
A technique for endoscopic surgery and trocar, which is applied to puncture needles, puncture needles, catheters, etc., and can solve problems such as damage, failure to solve resistance problems, and porous materials easily generating debris.
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[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation will be described in detail below in conjunction with the accompanying drawings:
[0022] see figure 1 and figure 2 , the most preferred embodiment of the present invention, a trocar for laparoscopic surgery, comprising a puncture sleeve 3, a seal 2, a puncture rod assembly 1 and an air intake assembly 4, the seal 2 is arranged on the puncture sleeve 3, and the puncture The rod assembly 1 includes a piercing rod base 11 and a piercing rod 12. The piercing rod 12 is an equal-diameter rod body, and the tail end of the piercing rod 12 is connected to the piercing rod base 11. The head end of the piercing rod 12 shrinks into a polygonal pyramid. After passing through the sealing member 2, the head end is inserted into the puncture sleeve 3, and the base 11 of the puncture rod is clamped on the puncture sleeve 3. The air intake asse...
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