Buckle limiting structure and support imbedding device using same
A limit structure and inserter technology, which is applied in the field of medical devices, can solve the problems of affecting doctors' operation and judgment, slow operation, etc., and achieve the effect of reducing operation proficiency requirements, fast release speed, and avoiding arbitrary sliding
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Embodiment 1
[0033] like Figure 2-Figure 5 As shown, a snap limit structure includes a limit tube body 101, the limit tube body 101 is a tubular structure, and has a through hole 1011 along the axial direction suitable for the booster tube 7 of the stent implanter to pass through, An axial end of the limiting tube body 101 is provided with an external thread 102 for threaded engagement with the handle 2 . The other axial end of the limiting tube body 101 is provided with a movable sleeve suitable for abutting against the fixed knob 3; The position tube body 101 is softly connected, so that the buckle 103 can be turned over relative to the position limit tube body 101 . One end (rear end) of each buckle 103 away from the fixing knob 3 is connected to the limiting tube body 101 , and the other end (front end) of the buckle 103 can be turned over relative to its connection end with the limiting tube body 101 . When locking, the buckle 103 is turned over to the outer circumference of the li...
Embodiment 2
[0041] In the first embodiment, during the release process, it is impossible to determine whether the fixing knob 3 is completely released. If the release is not complete, the release of the bracket will be blocked. figure 2 As shown, in this embodiment, a radially protruding limiting shoulder 104 is further provided outside the limiting tube body 101 . When the movable sleeve is buckled, the limiting shoulder 104 is located on the inner circumference of the movable sleeve. The outer diameter of the limiting shoulder 104 is larger than the inner diameter of the fixing knob 3 . The limiting shoulder 104 can realize the indication (indicating the position that the doctor can release) and the limiting function. When releasing, as long as the fixing knob 3 is in contact with the end face of the limiting shoulder 104, it means that the release is in place (eg. Figure 10 shown).
[0042] The sheath tube 8 and the handle 2 can be fixedly connected by the following structure: the s...
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