Animal tibial surgical positioning fixation device

Abstract

The invention discloses a positioning and fixing device for animal tibial surgery, which comprises a tibial positioning and fixing arm connected to an external fixing frame, and a popliteal fossa positioning unit, a knee fixing unit and an ankle fixing unit are arranged on the tibial fixing arm, and the tibial The surgical positioning and fixing arm is used to define and fix the standard surgical position of the animal tibia in tibial surgery, forming a small surgical environment operating platform for the three-dimensional standard image of the tibial surgery. The invention realizes the three-dimensional fixed-point surgical fixation of tibial orthopedic surgery in laboratory animals, and can ensure the repeatability of the tibial bone fixation needle puncture, fracture and segmental bone defect experimental models, and the repeatability of experimental animal tibial model surgical techniques. and data reliability. The present invention is supplemented with a three-dimensional three-dimensional adjustable fixation frame as an external fixation frame, so that the tibial positioning and fixing arm has a stable three-dimensional three-dimensional variability based on vertical and horizontal axes, and can provide the operator with the required surgical environment suitable position .

Description

technical field [0001] The invention relates to a special surgical instrument for medical experimental animal models, specifically for the establishment of experimental animal models of tibial fractures and tibial segmental bone defects, and the implementation of orthopedic external fixation surgery techniques. Orthopedic surgery positioning fixation device for repeatability, bone fixation needle percutaneous puncture anchoring for tibial external fixation, fixed-point digital surgery for tibial fractures or segmental bone defects. Background technique [0002] At present, the external fixation technology of the small animal tibia experimental model in the international laboratory has always been a technical problem that many laboratories can't expect. Due to the difficulty in implementing standard and repeatable small animal bone surgery with conventional surgical instruments and general laboratory technical background, many laboratories around the world have not been able ...

AI Technical Summary

Problems solved by technology

Despite unremitting efforts, a novel ultra-thin cannulated bone fixation needle was invented, which realized the possibility of electrically driving percutaneous bone fixation needles for small animal bones. However, the shape of the mouse tibia is curved and the size is extremely large Small size, limited surgical operation space, and the anesthetized mouse body is soft, and the anatomical part of the bone under the fur and soft tissue is difficult to distinguish, which still limits the possibility of percutaneous puncture implantation of bone fixation needles

Practice has shown that it is very difficult to perform electric percutaneous puncture or accurate surgical operation without a standard three-dimensional surgical fixation system device, and only rely on surgical assistants to stabilize the surgical bone with bare hands or hand-held bone forceps. needle piercing operation

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