Traction and reduction frame for calf and ankle fractures

Abstract

The invention discloses a shank and ankle fracture traction reduction frame, and belongs to the technical field of medical instruments for the department of orthopaedics. The shank and ankle fracture traction reduction frame is used for carrying out traction reduction on shank and ankle fractures. According to the technical scheme, two inclined long rods serve as main traction rods, the middle portions of the two main traction rods are connected with the upper portions of two supporting rods through rotating shafts respectively, a traction transverse shaft is perpendicularly connected between the upper portions of the two main traction rods and provided with a traction screw hole, the upper portion of a traction arch is connected with the lower end of a lead screw, the lead screw is matched with the traction screw hole, the upper end of the lead screw is connected with a motor, the motor is connected with a programmable controller, the lower portion of the traction arch is fixed to the upper bone of the shank under traction, a traction kirschner wire is arranged on the lower portions of the two main traction rods, and the middle portion of the kirschner wire penetrates through the bone of the foot under traction. By means of the shank and ankle fracture traction reduction frame, accurate traction can be carried out on shank and ankle fracture parts, malposition, twist and the like of the fracture parts can be corrected, the reduction quality of minimally invasive treatment of lower limb fractures is improved, and the operation difficulty is lowered.

Description

technical field [0001] The invention relates to a device for traction and reduction of calf and ankle fractures, which belongs to the technical field of orthopedic medical devices. Background technique [0002] Fractures of the calf and ankle are the parts with the highest incidence of systemic fractures, and the conditions are often complicated, with many types of fractures and difficult reduction. If the treatment is not good, it is very easy to cause complications such as shortening of the lower limbs, malunion, and nonunion. Moreover, with the change of the concept of fracture reduction, more and more emphasis is placed on the importance of closed minimally invasive fracture reduction, and for more complicated calf and ankle fractures, minimally invasive closed reduction has become an inevitable challenge in clinical work. [0003] Traction technique is an important technique for minimally invasive closed reduction of fractures, including preoperative traction and intra...

AI Technical Summary

Problems solved by technology

Manual traction uses artificial force as the main traction force, which is non-mechanical traction. The traction force is often small, and it is difficult to meet the requirements of anatomical reduction, and it cannot guarantee that the traction force will continue to be consistent with the force line of the lower limbs. It is a relatively backward traction method; traction bed traction is the modern lower limb traction method The most commonly used traction method in fracture surgery, mechanical traction is more stable than manual traction, and the traction force is greater, which can meet the requirements of anatomical reduction. The traction force is similar to the force line of the lower limbs. It cannot be applied in war zones or disaster areas, and because of its fixed traction mode, its indications are narrow; traction frame traction often adopts mechanical bone traction along the force line of the lower limbs, and the forms of traction frames are different. Although the cost is low, the currently used The traction frame is only designed for specific fracture types, with narrow indications, and all of them are unidirectional traction along the line of force of the lower limbs, and the traction force is small

Therefore, from the overall situation, the existing traction devices have many deficiencies and cannot meet the needs of clinical treatment. Even many traction devices are unreasonable in design, which affects the operation of the operator and increases the difficulty of the operation.

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