Bracket for nasal polyp resection surgery
A technology for nasal polyps and surgery, which is applied in the direction of surgery, operating table, stereotaxic surgical instruments, etc., can solve the problems of small operating space, blocking of tubular instruments, and affecting the stability of operation, so as to facilitate observation and operation, improve stability and Adaptability, the effect of improving the viewing angle and operating space
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Embodiment 1
[0020] see Figure 1-4 , in an embodiment of the present invention, a nasal polypectomy surgery bracket includes a bracket body; the bracket body includes a headrest block 1 and an expansion frame 3; the expansion frame 3 includes three sets of expansion rods 301 distributed in a triangle, three The set of expansion rods 301 includes a set of central expansion rods 301a and two sets of side expansion rods 301b symmetrically arranged on both sides of the central expansion rod 301a. The nesting block 303, the nesting block 303 is nested with a trapezoidal block 4, the trapezoidal block 4 is provided with a chute 5 matching with the nesting block 303, the chute 5 is provided with a screw 6, and the screw 6 runs through the nesting block 303 And screwed with the nesting block 303; the end of the screw rod 6 is sleeved and fixed with a worm wheel 7, the worm wheel 7 is engaged with a worm 8, and the worm 8 extends to the outside of the chute 5 and is fixedly connected with the firs...
Embodiment 2
[0023] A stent for nasal polypectomy, comprising a stent body; the stent body includes a headrest block 1 and an expansion frame 3; the expansion frame 3 includes three sets of expansion rods 301 distributed in a triangle, and the three sets of expansion rods 301 include one The central expansion rod 301a and two sets of side expansion rods 301b are symmetrically arranged on both sides of the central expansion rod 301a. The front end of the expansion rod 301 is fixedly connected with the abutment block 302, and the end of the expansion rod 301 is fixedly connected with the nesting block 303, and the nesting block 303 is nested with a trapezoidal block 4, and the trapezoidal block 4 is provided with a chute 5 cooperating with the nesting block 303. The chute 5 is provided with a screw 6, and the screw 6 runs through the nesting block 303 and is threaded with the nesting block 303. Connection; the end of the screw rod 6 is sleeved and fixed with a worm wheel 7 , the worm wheel 7 ...
Embodiment 3
[0026] A stent for nasal polypectomy, comprising a stent body; the stent body includes a headrest block 1 and an expansion frame 3; the expansion frame 3 includes three sets of expansion rods 301 distributed in a triangle, and the three sets of expansion rods 301 include one The central expansion rod 301a and two sets of side expansion rods 301b are symmetrically arranged on both sides of the central expansion rod 301a. The front end of the expansion rod 301 is fixedly connected with the abutment block 302, and the end of the expansion rod 301 is fixedly connected with the nesting block 303, and the nesting block 303 is nested with a trapezoidal block 4, and the trapezoidal block 4 is provided with a chute 5 cooperating with the nesting block 303. The chute 5 is provided with a screw 6, and the screw 6 runs through the nesting block 303 and is threaded with the nesting block 303. Connection; the end of the screw rod 6 is sleeved and fixed with a worm wheel 7 , the worm wheel 7 ...
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