Multifunctional bone fracture reduction guide clamp

Abstract

The invention relates to a multifunctional bone fracture reduction guide clamp comprising a central guide sleeve. A slide sleeve is movably arranged on the surface of the central guide sleeve; a pair of clamp body hinging ends is arranged on the slide sleeve; the central guide sleeve is further provided with a pair of jaw hinging ends corresponding to the clamp body hinging ends; the two clamp body hinging ends are respectively hinged with clamp bodies to form an expandable clamp body; the two jaw hinging ends are respectively hinged with jaws to form an arc-shaped circular jaw; each clamp body is hinged with each jaw via a public hinging end; each clamp body drives each jaw to rotationally close or expand with each jaw hinging end as a center, so that a bone cross section circle center is determined; a pressurizing sleeve is disposed in the center guide sleeve; and the center guide sleeve is provided with a buckling structure to limit a motion position of the pressurizing sleeve. Bone fracture reset can be facilitated and closed reset difficulty in a surgery can be solved; the bone fracture can be temporarily fixed; and the multifunctional bone fracture reset guide clamp is advantaged by simple operation, short operational time, small damage to soft tissue, little bleeding and quick bone fracture heeling.

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.

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