Bone holder for minimally invasive orthopedic surgery

Abstract

The invention discloses a bone holder for minimally invasive orthopedic surgery.The bone holder comprises two annular fixing devices and further comprises traction devices and clamping devices.The traction devices are used for adjusting the distance between the two annular fixing devices.The clamping devices are arranged on the annular fixing devices.Each annular fixing device comprises a snap ring composed of a first arc part and a second arc part.Each clamping device comprises a clamping seat arranged on the corresponding snap ring, a hollow beak which is arranged on the clamping seat and can reciprocate in the radial direction of the corresponding snap ring, and a steel needle which is arranged in the hollow beak and can reciprocate in the radial direction of the corresponding snap ring.The annular fixing devices, the traction device and the clamping device are matched and are independent, precise clamping, traction and reset functions on broken bones during the surgery can be effectively achieved, the problems existing in clamping, traction and the like of closed reset and small-incision reset in the minimally invasive orthopedic surgery, especially long bone fracture minimally invasive surgery can be well solved, the requirements for long bone fracture surgery reset under the minimally invasive condition are met, and the defects of existing instruments are overcome.

Description

technical field [0001] The invention relates to the field of orthopedic medical minimally invasive surgery, in particular to a bone holder for orthopedic minimally invasive surgery, which is suitable for effective clamping, traction and reset of broken bones. Background technique [0002] There are tens of millions of fractures due to various reasons every year, and the most common method to treat fracture patients is surgical reduction and fixation. When carrying out operative reduction to fracture patient, bone holder is one of instruments that doctor must use. The traditional three-jaw bone holder has the following disadvantages: (1) Difficulty in placement, large trauma, and slow fracture healing. The three claws are inserted from the side of the fracture. In the incision with abundant muscles, more soft tissue must be stripped to be inserted. Therefore, the soft tissue is stripped more, the local blood supply is greatly damaged, and the fracture healing is slow. (2) T...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and provide a bone holder for minimally invasive surgery in orthopedics, which can effectively clamp, pull, and reset the two ends of the affected part of the fracture in the minimally invasive surgery, thereby Solve the problems of closed reduction and small incision reduction in minimally invasive orthopedic surgery, especially in minimally invasive surgery for long tubular bone fractures

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