Sleeve-type superfine diameter osteofixation needle
A fixed needle and cannula-type technology, applied in medical science, veterinary equipment, veterinary surgery, etc., can solve the problems of large surgical trauma, limited wide application, expensive, etc., and achieve a wide range of indications and strong operability Effect
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[0082] Example 1
[0083] Such as Figure 1-7D The shown cannula type ultra-fine diameter bone fixation needle 100 includes a booster sleeve 116 and an ultra-fine diameter bone fixation needle 102 built in the booster sleeve. The diameter of the bone fixation needle 102 is 0.3 mm.
[0084] One end of the booster sleeve 116 is provided with an adapter seat 112 connected to the rotor adapter head 124 of the drive motor 122. The bone fixation needle 102 is loaded in the booster sleeve 116, and is rigidly connected by the clamping arm 118 at the distal end of the booster sleeve 116 and the detachable rigid plastic ball 120; the clamping arm 118 and the detachable rigid plastic ball 120 bind the bone The fixed needle 102 and the booster sleeve 116 are rigidly integrated, and are locked to limit the length of the needle tip of the bone fixation needle 102 extending from the booster sleeve 116 to 6mm to ensure that the protruding needle tip has sufficient mechanical strength to meet the ...
Example Embodiment
[0092] Example 2
[0093] Such as Figure 8-1 The type II cannula type ultra-fine diameter bone fixation needle shown in 0 includes a type II needle cannula 214 and a built-in type II needle 202. The diameter of type Ⅱ needle 202 is 0.5mm.
[0094] Such as Picture 8 , 9A As shown in 9B, one end of the type II needle sleeve 214 is provided with a type II needle adapter seat 212 connected to the rotor of the driving motor. The type II needle adapter seat is in the shape of a hexagonal prism and matches the type II needle adapter cavity 210 of the cordless motor. Match. The type II needle 202 is loaded in the type II needle sleeve 214 and is rigidly connected by the sleeve tightening thread 216 at the distal end of the type II needle sleeve 214 and the sleeve tightening nut 218.
[0095] Such as Figure 10A , 10B As shown in, 10C and 10D, the distal port of the type II needle cannula 214 is divided into three equal parts and extended as trapezoidal lobes. The three trapezoidal lobes ...
Example Embodiment
[0096] Example 3
[0097] This embodiment is used to explain the use method and process of the sleeve-type superfine-diameter bone fixation needle of the present invention in the external fixation operation of the tibia in mice.
[0098] Such as Figure 11-30 Shown is a schematic diagram of establishing a mouse tibia and femur external fixator model by using the sleeve-type ultra-fine diameter bone fixation needle of the present invention.
[0099] Such as Picture 11 As shown, the mouse is fixed to the orthopedic surgical fixation device 300, and the hind limbs of the mouse are placed in a standard position in front of the animal orthopedic positioning fixture 302, and a positioning needle hole 304 is shown that can be positioned through the anatomical position of the popliteal fossa.
[0100] Such as Picture 12 As shown, the hind limbs of the mouse are positioned on the animal orthopedic fixation device, and the 25G syringe needle is used as the positioning needle 306 through the p...
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