Needle knife
A needle-knife and needle body technology, applied in acupuncture, medical science, blunt instruments, etc., can solve problems such as easy cutting of blood vessels, inability to achieve bluntness, function conversion, needle-knife cannot switch needle blades, etc., to improve safety factor , Reduce the risk and complications of blindness surgery, reduce numbness and abnormal effects
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Embodiment 1
[0059] Embodiment one: the present invention discloses a needle knife (see attached figure 1 , 2 , 3, 4, 5), including: a needle handle 1 with a movable device 30; the first needle body 3, one end of which is fixed on the movable device 30, and the other end has a needle blade 7; the second needle body 2, with the first The needle bodies 3 are arranged side by side along the length direction; the second needle body 2 is fixed on the movable device 30, and the other end has a sharp cutting edge 9; the second needle body 2 or the first needle body 3 is driven by the movable device 30 Realize that the second needle body 2 and the first needle body 3 slide relative to each other to form the first working position and the second working position; when in the first working position, the needle blade 7 exceeds the sharp cutting edge 9, so that the needle blade 7 can work And cutting sharp edge 9 can't work; When being in the second working position, described cutting sharp edge 9 ex...
Embodiment 2
[0072] Embodiment two: the present invention discloses a needle knife (see attached Figure 8 , 9 ), including: a needle handle 1, with a movable device 30; a first needle body 3, one end of which is fixed on the movable device 30, and the other end has a needle blade 7; a second needle body 2, and the first needle body 3 along the length direction Arranged side by side; the second needle body 2 is fixed on the movable device 30, and the other end has a sharp cutting edge 9; the second needle body 2 or the first needle body 3 is driven by the movable device 30 to realize the second needle body 2 Sliding relative to the first needle body 3 to form the first working position and the second working position respectively; when in the first working position, the needle blade 7 or the blunt blade 8 exceeds the sharp cutting edge 9, so that the blunt blade 8 can work and The sharp cutting edge 9 cannot work; when in the second working position, the sharp cutting edge 9 exceeds the b...
Embodiment 3
[0074] Embodiment three: the present invention discloses a needle knife (see attached Figure 10 ), comprising: a needle handle 1, with a movable device 30; a first needle body 3, one end of which is fixed on the movable device 30, and the other end has a blunt edge 8; a second needle body 2, and the first needle body 3 along the length direction Arranged side by side; the second needle body 2 is fixed on the movable device 30, and the other end has a sharp cutting edge 9; the second needle body 2 or the first needle body 3 is driven by the movable device 30 to realize the second needle body 2 Sliding relative to the first needle body 3 to form the first working position and the second working position respectively (see attached Figure 11 ,12 ); when in the first working position, the blunt edge 8 exceeds the sharp cutting edge 9, so that the blunt edge 8 can work but the sharp cutting edge 9 cannot work; when in the second working position, the sharp cutting edge 9 exceeds t...
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