Self-retraction puncture core
A puncture core and self-returning technology, applied in the direction of puncture needles, puncture needles, trocars, etc., can solve problems such as intestinal perforation, unfavorable promotion of endoscopic surgery, and life-threatening problems, and achieves convenient use and operation, wide adaptability, and structural compact effect
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[0049] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0050] Such as figure 1 and figure 2 Shown: in order to meet the needs of puncture and achieve protection after puncture, the present invention includes a puncture sleeve 1 and a puncture body 2 located in the puncture sleeve 1, the head end of the puncture body 2 has a puncture tip 4. The tail end of the puncture body 2 is connected to the puncture handle 5, and the puncture tip 4 at the head end of the puncture body 2 can pass through the head end of the puncture sleeve 1, and the puncture handle 5 is located at the tail end of the puncture sleeve 1; Also includes a motion drive mechanism and a tip lock hold mechanism;
[0051] When the puncture body 2 is pressed by the puncture handle 5, the puncture point 4 of the puncture body 2 will pass through the head end of the puncture sleeve 1, so as to perform the required puncture operation with the puncture po...
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