A minimally invasive retractor

Abstract

The invention discloses a minimally invasive retractor. The minimally invasive retractor mainly comprises a first bone needle, a second bone needle, bone needle connecting mechanisms, longitudinal support rods, a transverse support rod, vertical adjusting rods and longitudinal tension bars, wherein the first bone needle and the second bone needle are transversely punched into parts, where broken ends of fractured bone are drawn conveniently, of two ends of the fractured bone respectively; the two longitudinal support rods are located on two sides of a fractured limb respectively, the front ends of the longitudinal support rods are connected with the first bone needle through the bone needle connecting mechanisms, the rear ends are connected with the transverse support rod, and the vertical adjusting rods are arranged at two ends of the transverse support rod respectively; the minimally invasive retractor is characterized in that the longitudinal tension bars are arranged at the lower ends of the vertical adjusting rods respectively, the longitudinal tension bars and the longitudinal support rods are in the same direction, the front ends of the longitudinal tension bars are connected with the second bone needle, the rear ends are connected with the vertical adjusting rods, and the longitudinal tension bars are rotated to realize distraction and closed reduction of two broken ends of the bone fracture.

Description

Technical field [0001] The present invention provides a medical device, especially a minimally invasive retractor. Background technique [0002] Intramedullary nail internal fixation is a common method for the treatment of limb fractures. The fracture needs to be reduced before nail penetration. The use of traction table reduction is the traditional method used by most orthopedic surgeons. However, due to the special position of the traction table, the intraoperative operation is limited. Flexibility, especially for healthy or obese patients, intraoperative operations are particularly difficult. Summary of the invention [0003] The present invention provides a minimally invasive retractor to solve the above-mentioned difficulties. [0004] The minimally invasive retractor is mainly composed of a first bone needle, a second bone needle, a bone needle connection mechanism, a longitudinal support rod, a transverse support rod, an upper and lower adjustment rod and a longitudinal stre...

AI Technical Summary

Problems solved by technology

[0002] Intramedullary nail fixation is a common method for treating extremity fractures. Before the nail is inserted, the fracture needs to be reduced. Traction table reduction is the traditional method used by most orthopedic surgeons. However, the special position of the traction table limits the scope of operation. Mobility, especially in able-bodied or obese patients, where intraoperative manipulation can be difficult

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