A kind of multifunctional fracture reduction guide forceps

Abstract

The present invention is a kind of multifunctional fracture reduction guide forceps, which comprises a center guide sleeve, the surface of the center guide sleeve is movably provided with a sliding sleeve, a pair of pliers body hinge ends are arranged on the slide sleeve, and the center guide sleeve is There is a pair of hinged jaws corresponding to the hinged ends of the jaws, each of the two hinged jaws is hinged with a jaw to form a retractable jaw, and each of the two jaw hinged ends is hinged with a jaw to form an arc-shaped encircling pliers The pliers body and the jaws are hinged together through a common hinged end. The pliers body drives the jaws to rotate around or expand around the hinged end of the jaws to determine the center of the cross section of the backbone. The center guide sleeve is equipped with a pressurized The sleeve and the central guide sleeve are provided with a fastener structure to limit the movement position of the pressurized sleeve. The invention can assist fracture reduction, solve the problem of difficult closed reduction in operation, and can be temporarily fixed, and has the advantages of simple operation, short operation time, less soft tissue damage, less bleeding, and fast fracture healing.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a medical instrument for guiding drilling and assisting fracture reduction. Background technique [0002] The main features of minimally invasive percutaneous plateosteosynthesis (MIPPO) are no incision of the fracture end, closed reduction of indirect fractures, percutaneous insertion of an anatomical locking plate for internal fixation, and maximum protection of the blood supply of the periosteal soft tissue at the fracture end. It is beneficial to fracture healing, and its advantages are small surgical trauma, less bleeding, fast fracture healing, less infection complications, etc., and shortens hospitalization time. Fracture malunion, delayed union and other complications occurred. These problems limit the wide application of MIPPO technology. [0003] In recent years, remote control closed fracture reduction, robot reduction of long bone fractures and other technologies ...

AI Technical Summary

Problems solved by technology

[0002] The main features of minimally invasive percutaneous plateosteosynthesis (MIPPO) are no incision of the fracture end, closed reduction of indirect fractures, percutaneous insertion of an anatomical locking plate for internal fixation, and maximal protection of the blood supply of the periosteal soft tissue at the fracture end. It is beneficial to fracture healing, and its advantages are small surgical trauma, less bleeding, fast fracture healing, less infection complications, etc., shortening the hospitalization time, but because it is indirect closed reduction, fracture reduction is difficult, and fracture cannot be effectively temporarily fixed after reduction Fracture malunion, delayed union and other complications

These problems limit the wide application of MIPPO technology

[0003] In recent years, remote closed fracture reduction, robot reduction of long bone fractures and other technologies have achieved minimally invasive surgery, especially the emergence of popular three-dimensional (3D) imaging and navigation robot-assisted fracture reduction technologies have provided some methods for minimally invasive surgery, but due to expensive equipment , the operation is complicated, the closed reduction position of the fracture is not good, the reliability is poor, and it cannot be popularized clinically.

[0004] The patent (publication number: 203138653U) discloses a reset-guiding pliers, which is used for alignment. The encircling pliers are composed of two intersecting pliers passing through the rotating shaft. The jaws and the pliers are designed in a "Z" shape, so that the jaws The inner sleeve is on the same plane, but the disadvantages of this type of reset pliers are: 1. The clamp body structure of the reset pliers is not on the same plane as the control center structure, and the stability is not good; 2. Due to structural reasons, the front and rear volume of the reset pliers is large , it is impossible to place reduction forceps in the screw holes adjacent to the bone plate; 3. The jaws and the body of the forceps are designed in a "Z" shape so that the jaws and the inner sleeve are on the same plane, which is prone to deformation when reset is stressed, affecting fracture reduction ; 4. The two inverted "L"-shaped buckles of the quick pressurizing cylinder are easily slipped when they are buckled into the square thread and stressed.

Images