Rebuilding locking maxillofacial bone plate

Abstract

The invention discloses a rebuilding locking maxillofacial bone plate comprising a maxillofacial bone plate body. A plurality of locking screw holes are uniformly formed in the maxillofacial bone plate at intervals along the length of the maxillofacial bone plate body; each locking screw hole is reduced from top to bottom gradually and runs through the maxillofacial bone plate body and is provided with an internal thread, and the outer diameter of the internal thread is equal to the maximum diameter of the locking screw hole. An upper groove and a lower groove are respectively formed on the upper surface and the lower surface of the maxillofacial bone plate body between each two optional adjacent locking screw holes and are in up-and-down corresponding distribution; the upper groove runs through the upper surface of the maxillofacial bone plate body between the two optional adjacent locking screw holes, while the lower groove runs through the lower surface of the maxillofacial bone plate body between the two optional adjacent locking screw holes. The rebuilding locking maxillofacial bone plate is convenient to operate and has no deformation of locking screw holes during preoperative forming.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a locking maxillofacial reconstruction type bone plate used for reconstruction and repair of mandible. Background technique [0002] After the mandible is resected due to tumor lesions, or is fractured by external impact, mandibular reconstruction and repair surgery is required. Maxillofacial bone plate is a commonly used medical device in mandibular reconstruction and repair surgery. The structure of the currently used maxillofacial bone plate is: comprising a maxillofacial bone plate body, along the length direction of the maxillofacial bone plate body, a number of locking screw holes are arranged at intervals on the maxillofacial bone plate. Before the mandibular reconstruction and repair operation, the maxillofacial bone plate needs to be shaped according to the model of the patient's mandible with special plastic pliers to fit the patient's mandible so as to achieve a good...

AI Technical Summary

Problems solved by technology

Before the mandibular reconstruction and repair operation, the maxillofacial bone plate needs to be shaped according to the model of the patient's mandible with special plastic pliers to fit the patient's mandible so as to achieve a good reconstruction effect; this maxillofacial bone plate The disadvantages of the plate are: on the one hand, during the preoperative shaping process of the above-mentioned maxillofacial bone plate, the locking screw hole is easily deformed, resulting in poor mutual locking effect between the locking screw and the maxillofacial bone plate, so the above-mentioned maxillofacial bone plate Before the preoperative forming of the bone plate, a stuffing nail needs to be pre-placed in the locking screw hole, and then the stuffing nail is taken out after it is formed. The operation is cumbersome, which reduces the operation efficiency and prolongs the operation time; After the maxillofacial bone plate is locked and fixed by the screw, the top surface of the locking screw is higher than the top surface of the maxillofacial bone plate. Because the maxillofacial cortex is thin, it not only stimulates the soft tissue greatly, affects the blood supply, but also makes the postoperative The patient has a foreign body sensation

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