A guide positioning type electric bone drill
A technology of guiding positioning and electric bone drill, which is applied in medical science, surgery, etc., can solve problems such as complex structure, easy shaking, and Kirschner wire breakage, and achieve simple disassembly and restoration, prevention of crushing injuries, and ingenious design. Effect
Active Publication Date: 2022-05-20
XIANGYA HOSPITAL CENT SOUTH UNIV
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Problems solved by technology
Because the Kirschner wire is relatively slender, the clamping process is very easy to produce eccentricity, which will increase the drilling resistance, expand the drilling hole, and even break the Kirschner wire in severe cases.
In addition, since the rear end of the Kirschner wire is not clamped or fixed, it is easy to shake when rotating at high speed, and it is easy to cause plastic deformation such as bending of the Kirschner wire before it works, and it also makes the drilling process unstable. Difference
Due to the complex structure of the existing electric bone drill, it is difficult to disassemble and fully disinfect, which increases the risk of infection for patients
Method used
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Embodiment Construction
[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0029] Such as Figure 1 to Figure 8 As shown, the guiding and positioning type electric bone drill of the present embodiment includes a bone drill housing 1, and a driving mechanism 2 and a transmission mechanism 3 connected to each other are provided in the bone drill housing 1, and the transmission mechanism 3 is connected with the bone drill housing 1 The positioning and clamping mechanism 5 protruding from the front end is used for centering and clamping the Kirschner wire 4, and the positioning and clamping mechanism 5 plays the role of centering and clamping the Kirschner wire 4 at the same time, so that the Kirschner wire 4 Clamping is not prone to eccentricity relative to the center of rotation. The rear end of the bone drill housing 1 is pierced with a guiding and positioning mechanism 6 for guiding and centering the Kirsch...
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The invention discloses a guiding and positioning type electric bone drill, which comprises a bone drill shell. A driving mechanism and a transmission mechanism connected to each other are arranged in the bone drill shell. Positioning and clamping mechanism for centering and clamping of Kirschner wires. The positioning and clamping mechanism can center and clamp Kirschner wires at the same time, so that the clamping of Kirschner wires is not easy to produce eccentricity relative to the rotation center. The rear end of the bone drill housing is perforated with a guiding and positioning mechanism for guiding and centering the Kirschner wire. The guiding and positioning mechanism plays a pre-centering role in the installation of the Kirschner wire, so that the axis of the Kirschner wire is always aligned with the axis of the positioning and clamping mechanism, avoiding the eccentricity caused by the installation, causing the Kirschner wire to shake or deform when it is working . The guide positioning type electric bone drill is simple to connect with each mechanism, easy to disassemble and assemble, and is convenient for all-round disinfection of the bone drill after use.
Description
technical field [0001] The invention relates to the technical field of medical instruments, in particular to a guiding and positioning electric bone drill. Background technique [0002] A Kirschner wire is a stainless steel needle that connects broken bones. In orthopedic surgery, Kirschner wires are commonly used as internal fixation materials for fracture fixation. As an auxiliary tool for Kirschner wires, electric bone drills are often used to drill holes in patients' bones. When the Kirschner wire is used, it is clamped by an electric bone drill and drilled into the bone through high-speed rotation. [0003] In the prior art, Kirschner wires are usually held by a three-jaw drill chuck. Because the Kirschner wire is relatively slender, it is very easy to produce eccentricity during the clamping process, resulting in increased drilling resistance, enlarged drilling holes, and even breakage of the Kirschner wire in severe cases. In addition, since the rear end of the Ki...
Claims
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IPC IPC(8): A61B17/16
CPCA61B17/1604A61B17/1622A61B17/1624
Inventor 吴攀峰唐举玉庞晓阳卿黎明蒋莉
Owner XIANGYA HOSPITAL CENT SOUTH UNIV