Novel patella fracture grasping resetting locking device

Abstract

The invention discloses a novel patella fracture grasping resetting locking device, including a lower blade. The left side of the lower blade is in a horizontal shape. The middle part of the top end of the lower blade is provided with a lower silicon pad. The top end of the lower silicon pad is provided with a patella. The top end of the patella is provided with an upper silicon pad. The top end of the upper silicon pad is provided with an upper blade. The upper blade is in an arc shape. The right sides of the upper blade and the lower blade are hinged through a pivot pin. The left end of theupper blade is provided with an upper connecting block. The upper connecting block is in an arc shape and the right end is provided with a plurality of spring plates. Each of the plurality of spring plates is internally provided with a second spring. One end of the plurality of second springs is fixedly connected with the upper connecting block. The device is simple in structure and convenient inuse. The device applies force in a face-to-face manner when clamping a patella, and effectively reduces damages on the patella when the device resets. The spring plate is meshed with the lower connecting block, to effectively fix and reset the patella. Grooves are provided so that a kirschner wire can be put in the device temporarily, and possibility that crushed bones move is reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a novel patella fracture grasping reset locking device. Background technique [0002] Clinically common patellar fractures (especially comminuted fractures) often cannot be effectively grasped during the reduction operation due to the fragmented bone fragments, or the infrapatellar cartilage cannot be effectively reduced after grasping, resulting in difficult reduction of patellar fractures during surgery. Conventional patellar grasping Because the holder is grasped around the surface of the patella, it is difficult to achieve the clinically required reduction, and it is very easy to cause further damage to some comminuted patella fracture fragments during the reduction process. At the same time, it needs Kirschner wire fixation after grasping , The broken bone is easy to shift, and it is proposed to design a new type of patella grasping reset locking device. [0003...

AI Technical Summary

Problems solved by technology

[0002] Clinically common patellar fractures (especially comminuted fractures) often cannot be effectively grasped during the reduction operation due to the fragmented bone fragments, or the infrapatellar cartilage cannot be effectively reduced after grasping, resulting in difficult reduction of patellar fractures during surgery. Conventional patellar grasping Because the holder is grasped around the surface of the patella, it is difficult to achieve the clinically required reduction, and it is very easy to cause further damage to some comminuted patella fracture fragments during the reduction process. At the same time, it needs Kirschner wire fixation after grasping , the broken bone is easy to shift, it is planned to design a new type of patellar grasping reset locking device

[0003] The existing patella fracture grasping reset locking device has the following disadvantages: the device has complex structure, high cost, poor clinical practicability, and unsatisfactory reset effect. Reduction of large patellar fractures can cause further damage to the broken bone

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