The Design and Simulation Experiment of Phalangeal Traction and Puncture Guidance Device
Objective To develop a phalangeal traction and puncture guidance device for internal fixation of phalangeal fractures using Kirschner wires,and to design a simulation experiment to test the puncture accuracy,safety,and convenience of use of the device.Methods In response to the shortcomings of the current Kirscher-wire internal fixation of phalanx fracture,such as low puncture accuracy,large number of punctures and strong surgical radiation,according to the existing problems,surgical requirements and actual working conditions,combined with the case of phalanx fracture in the hospital,the phalanx traction and puncture guidance device was designed by modular thinking.Following the surgical procedure,the working process of the experimental simulation device was designed,and its reliability was preliminarily verified,which laid the foundation for the subsequent clinical experiments.Results The simulation experiment results showed that the prototype of the finger bone traction and puncture guidance device can perform straight needle puncture at the front end of the finger and cross puncture on both sides of the finger,suitable for patients with different finger sizes,and can assist physicians in puncture positioning and save 1-2 medical staff,with positioning error of less than 1 mm.Conclusion Compared with traditional Kirschner wire internal fixation for phalangeal fractures,the phalangeal traction and puncture guidance device can assist physicians in accurately selecting the insertion point and puncture angle through continuous traction,stable locking,and precise positioning functions,providing Kirschner wire puncture guidance channels,improving puncture stability,reducing surgical intensity,and helping to reduce secondary injury to patients and radiation to medical staff during the surgical process.
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