一种骨科取钉器制造技术
A nail extracting device in Department of orthopedics
The utility model discloses an orthopaedic nail fetcher, which comprises a rectangular tubular support frame, a notch is arranged on one side of the lower plate of the support frame, a driven cap and a driving roll are arranged in parallel in the inner part, a screw thread part intermeshed with each other is arranged on the outer side of the driven cap and the driving roll, a fixed slot is arranged at the lower end of the driven cap, and the locking screw is jacked from the side part to fasten. The top cap of the fixed groove is locked and fixed, the guide rod is fixed at the upper end of the driven cap, and the guide rod passes through the upper plate of the support frame, and the outer end of the guide rod is provided with an anti-dislocation part; a rotating shaft is fixed in the driving roller, one end of the rotating shaft is limited in the lower plate of the support frame, and the other end passes through the upper plate of the support frame and the outer end is provided with a rotating motor. The utility model is equipped with a driven cap and a driving roller meshed with surface threads. The driven cap uses a locking screw to lock and fix the top cap, opens a rotating motor, and drives the roller to rotate. The driven cap moves up gradually under the guidance of the guide rod, and the bone nail is gradually pulled out, so that the bone nail groove in the nail cap is quickly removed from the worn and damaged bone nail groove.
【技术实现步骤摘要】
一种骨科取钉器
本技术涉及医疗用具
，具体涉及一种骨科取钉器。
技术介绍
医学临床中，骨折是常见的骨创伤疾病，而治疗骨折最常用的方法是实施内固定手术，即用接骨板和钢钉将骨骼连接起来，待愈合以后，将钢钉取下。取钉的方式也很多，如用螺丝刀插在骨钉钉帽的钉槽内，慢慢旋转直至将其取出，这种办法因简单，在实际中应用的最多，但是当钉槽不慎被磨损破坏时，骨钉就很难取出了。因此有必要设计一种骨科取钉器，能够将钉帽中钉槽被磨损破坏的骨钉快速取出。
技术实现思路
本技术的目的在于克服现有技术中存在的上述问题，提供一种骨科取钉器。为实现上述技术目的，达到上述技术效果，本技术是通过以下技术方案实现：一种骨科取钉器，包括矩形管状的支撑架，所述支撑架的下板一侧开设有便于骨钉中已破损顶帽顶入的缺口，所述支撑架的内部并列设有从动帽和驱动辊，所述从动帽和驱动辊的外侧设有相互啮合的螺纹部，所述从动帽位于缺口的正上方，所述从动帽的下端开设有固定槽，螺纹部沿水平方向对称开设有若干组与固定槽连通的锁紧螺纹槽，锁紧螺钉穿过所述锁紧螺纹槽将顶入固定槽的顶帽锁紧固定，所述从动帽的上端固定有导向杆，所述导向杆穿过支...
【技术保护点】
1.一种骨科取钉器，其特征在于：包括矩形管状的支撑架，所述支撑架的下板一侧开设有便于骨钉中已破损顶帽顶入的缺口，所述支撑架的内部并列设有从动帽和驱动辊，所述从动帽和驱动辊的外侧设有相互啮合的螺纹部，所述从动帽位于缺口的正上方，所述从动帽的下端开设有固定槽，螺纹部沿水平方向对称开设有若干组与固定槽连通的锁紧螺纹槽，锁紧螺钉穿过所述锁紧螺纹槽将顶入固定槽的顶帽锁紧固定，所述从动帽的上端固定有导向杆，所述导向杆穿过支撑架上板的端部设有较宽的防脱部；所述驱动辊中固定有转轴，所述转轴的一端限制在支撑架下板中，另一端穿过支撑架上板且其外端部设有转动电机。
【技术特征摘要】
1.一种骨科取钉器，其特征在于：包括矩形管状的支撑架，所述支撑架的下板一侧开设有便于骨钉中已破损顶帽顶入的缺口，所述支撑架的内部并列设有从动帽和驱动辊，所述从动帽和驱动辊的外侧设有相互啮合的螺纹部，所述从动帽位于缺口的正上方，所述从动帽的下端开设有固定槽，螺纹部沿水平方向对称开设有若干组与固定槽连通的锁紧螺纹槽，锁紧螺钉穿过所述锁紧螺纹槽将顶入固定槽的顶帽锁紧固定，所述从动帽的上端固定有导向杆，所述导向杆穿过支撑架上板的端部设有较宽的防脱部；所述驱动辊...
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