In vitro fracture fixer

Abstract

The invention discloses an in vitro fracture fixer, which comprises a telescopic body, bone needle fixers and a connecting device, wherein the bone needle fixers are arranged at two ends of the telescopic body through the connecting device; the connecting device comprises a connecting rod, a transverse groove formed on the top surface of a universal ball seat of the bone needle fixer and a longitudinal groove formed on the lateral surface of the universal ball seat of the bone needle fixer; the longitudinal sections of the transverse groove and the longitudinal groove are T-shaped; and the straight end of the connecting rod is fixedly connected with one end of the telescopic body, and the spherical end of the connecting rod is movably arranged in the transverse groove. Because the T-shaped grooves are formed on the universal ball seat, the bone needle fixers can be adjusted according to the implanting practical condition of bone needles during working so that the bone needle fixers realize the functions of transverse and longitudinal movement or rotation, the fracture fixer has the universal adjustment function, the implantation, angle and dosage of the bone needles have larger adjustment ranges, and the fracture fixer has a simpler structure.

Description

technical field [0001] The invention relates to a fracture fixator, in particular to an extracorporeal fracture fixator, which belongs to the technical field of medical instruments. Background technique [0002] A fracture fixator is a medical device used to fix a broken bone. The traditional fracture fixator consists of a piece of stainless steel and several stainless steel screws. The fixation method is to embed the stainless steel plate in the fracture in the body and fasten it to both ends of the broken bone with stainless steel screws. The body is covered with gypsum. After the two ends of the broken bone grow and connect, the skin and flesh are cut open, and the stainless steel plate and screws are taken out. Although the fracture fixator with this structure can fix the fracture, the patient needs to cut the flesh twice, so the More pain. In addition, several days of tube-style winding, numbness of limbs, skin allergies, itching, inconvenient cleaning, heavy dust poll...

AI Technical Summary

Problems solved by technology

The traditional fracture fixator consists of a piece of stainless steel and several stainless steel screws. The fixation method is to embed the stainless steel plate in the fracture in the body and fasten it to both ends of the broken bone with stainless steel screws. The body is covered with gypsum. After the two ends of the broken bone grow and connect, the skin and flesh are cut open, and the stainless steel plate and screws are taken out. Although the fracture fixator with this structure can fix the fracture, the patient needs to cut the flesh twice, so the More pain. In addition, several days of tube-style winding, numbness of limbs, skin allergies, itching, inconvenient cleaning, heavy dust pollution from cutting and healing of wounds, and inability to maintain the length of limb fractures. It is the alignment therapy for long-term bedridden patients, who are more prone to many complications

[0003] In order to solve the above-mentioned technical problems, the Chinese patent literature discloses a fracture fixer, the patent number is: "ZL90215211.4" and the patent name is "extracorporeal fracture fixer". A connection device, the bone spicule holder is arranged at both ends of the telescopic body through the connection device, wherein the connection device includes a universal ball arranged at one end of the bone spicule holder, a ball fixed at one end of the telescopic body The ball seat, the universal ball is matched with the ball seat; although the fracture fixer of this structure saves the extracorporeal plaster dressing, the joint function recovery is also faster, and the pain of the patient is also relieved; It can only rotate, but cannot move horizontally or vertically, and the positioning angle of the bone needle is intricate. If the bone needle is implanted slightly out of position, the patient will suffer from the pain of a second surgery for bone needle implantation

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