Medical bone internal broken nail removal and pulling trephine bit
A ring saw and drill bit technology, which is applied in the field of orthopedic medical devices, can solve problems such as difficult extraction by doctors, broken screws, inconvenient implementation, etc., and achieve the effect of scientific design and convenient use
Inactive Publication Date: 2018-09-25
南漳县中医院
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Problems solved by technology
[0002] When the hospital performs orthopedic surgery on patients, it often uses screws in the bone to fix the bone and fix the bone. However, the screw will break due to various reasons. Once the broken end of the screw remains in the bone, it is difficult for the doctor to remove it convenientl
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[0010] figure 1 As shown: the ring saw head used for extracting broken nails in the bone is connected with a cylinder 1 at the front end of the saw holding rod 3, and the front end of the cylinder 1 is provided with annular saw teeth 2, and several cutting teeth are distributed on the cylinder 1. Pressure hole 4. The cylinder body 1 is also provided with a scale marking line 5 for grasping the length.
[0011] To implement this technical solution, the whole formed by the cylinder body 1 and the saw holding rod 3 can be made of stainless steel.
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The invention provides a medical bone internal broken nail removal and pulling trephine bit. According to the trephine bit used for pulling and removing a bone internal broken nail, a barrel body is connected with the front end of a trephine holding rod, the front end of the barrel body is provided with annular saw teeth, several pressure reducing holes are formed in the barrel body, and a scale marking line for obtaining lengths is also arranged on the barrel body. When in use, the trephine bit can be aimed at the position of the bone internal broken nail, and can be drilled into a bone through rotation of the annular saw teeth, and a nail head broken into a tube can be taken out, thereby avoiding injuries to other tissues and reducing patient suffering.
Description
technical field [0001] The invention relates to an orthopedic medical device, in particular to a trephine drill bit for removing broken nails in the bone. Background technique [0002] When the hospital performs orthopedic surgery on patients, it often uses screws in the bone to fix the bone and fix the bone. However, the screw will break due to various reasons. Once the broken end of the screw remains in the bone, it is difficult for the doctor to remove it conveniently. , the traditional method generally uses alternative instruments to remove the peripheral weave of the broken nail, and then try to extract it after the broken nail is exposed. This traditional extraction method is not convenient to implement, and will increase the patient's surgical pain. Contents of the invention [0003] The object of the present invention is to provide a trephine drill bit for extracting broken nails in a medical bone, which can be screwed into the broken nails by means of an electric ...
Claims
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CPCA61B17/92
Inventor 蒋苏漳
Owner 南漳县中医院
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