Lower limb traction device for intramedullary nail surgery

Abstract

The invention discloses a lower limb traction device for an intramedullary nail surgery. The lower limb traction device includes a bottom beam, a shank support plate, a thigh backup plate, a sliding block, a traction needle, a traction bow and a pulling mechanism, the sliding block is installed on an axial sliding channel on the bottom beam and provided with sliding block locking screws, the shanksupport plate and the thigh backup plate are hinged in a Chinese character 'ren' shape, the lower end of the thigh backup plate is rotatably connected with the head end of the bottom beam, the lowerend of the shank support plate is rotatably connected with the sliding block, thighs and shanks of a patient respectively abut against the upper part of the thigh backup plate and the upper part of the shank support plate, the traction needle penetrates through the far-end of an anklebone or a shin bone of the patient and is connected between the two ends of the traction bow, and the bow back of the traction bow is connected with the tail end of the bottom beam through the pulling mechanism. According to the lower limb traction device, the patient can be kept in the state of curved leg, reliable traction of the shin bone of the patient can be achieved, all parts are not higher than lower limbs of the patient, and surgery operation is not affected; and according to the lower limb traction device, smooth operation of the intramedullary nail implantation surgery of a thigh bone and the shin bone can be ensured, and the surgical quality and the surgical efficiency are improved.

Description

technical field [0001] The invention relates to a lower limb traction device suitable for implantation of femoral and tibial intramedullary nails, and belongs to the technical field of orthopedic medical instruments. Background technique [0002] Femoral and tibial fractures are common clinical fractures. Due to the strong muscle strength of the legs, patients with tibial fractures often appear shortened and deformed under the pull of the muscles. It is difficult to reset, restore its length and maintain it effectively during the operation. If the anatomical reduction cannot be performed during the operation, complications such as malunion and poor alignment of the lower limbs may occur after the operation, which may lead to traumatic arthritis or osteoarthritis, seriously affecting the limb function and quality of life of the patient. [0003] Intramedullary nailing is a common treatment method for femoral and tibial fractures, and intraoperative traction is an important me...

AI Technical Summary

Problems solved by technology

At present, two assistants are generally required to help traction the patient during intramedullary nail implantation. The two assistants respectively hold the proximal end and the distal end of the broken bone to restore the femur or tibia. However, this method often cannot stably maintain the fracture reduction and the length of the lower limbs. , the reset effect is not ideal, which affects the treatment effect; and the two assistants will occupy the space of the surgeon, affecting the operation of the surgeon

[0004] Using a traction device to reset the fractured femur or tibia can overcome the above-mentioned shortcomings, but the existing traction devices generally need to occupy the upper part of the patient's lower limb space, which affects the operation, and the existing traction devices are all to straighten the lower limbs, and the marrow The inner nail is implanted from the distal femur or the proximal tibia, and the patient must maintain a bent-leg posture for surgery

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