Mandibular condyle sagittal fracture reduction forceps

Abstract

A pair of mandibular condyle sagittal fracture reduction forceps comprises a pair of sub forceps bodies hinged together. Each sub forceps body comprises a handle and a forceps head. The pair of the forceps is characterized in that the forceps are bent downward while bent inward, the section size of the forceps heads is gradually reduced from the hinge point to the free end, the free end of the forceps head of one sub forceps body is provided with a chuck, and the side face of the chuck is provided with a widening panel. Compared with the prior art, the pair of the mandibular condyle sagittal fracture reduction forceps has the advantages of fully exposing views, avoiding surrounding vessels and nerves, clamping free mandibular condyle sagittal bones, assisting in reduction of the free mandibular condyle sagittal fracture and enabling surfaces of fracture blocks to be uniformly stressed, and the free mandibular condyle sagittal bones can not be broken when clamped.

Description

technical field [0001] The invention relates to a medical device. Background technique [0002] The incidence of sagittal condylar fractures accounts for about 9% to 45% of mandibular fractures. Its treatment has always been the focus and difficulty of oral and maxillofacial trauma. If not treated properly, it is easy to cause traumatic arthritis, ankylosis and other related complications disease. The reasons why sagittal condylar fractures are more difficult to treat than other maxillofacial fractures are: ①The surgical field of view is narrow, located in the deep side of the face, and the position is deep, and doctors cannot anatomically reduce the condyle under direct vision; ②Condylar condyle occurs After the sagittal process fracture, the free medial condylar sagittal fracture fragment shifts inwardly, anteriorly, and inferiorly to the deep side of the face. Due to the lack of suitable surgical instruments, doctors can only use nerve strippers, curved hemostats, Alis ...

AI Technical Summary

Problems solved by technology

The reasons why sagittal condylar fractures are more difficult to treat than other maxillofacial fractures are: ①The surgical field of view is narrow, located in the deep side of the face, and the position is deep, and doctors cannot anatomically reduce the condyle under direct vision; ②Condylar condyle occurs After the sagittal process fracture, the free medial condylar sagittal fracture fragment shifts inwardly, anteriorly, and inferiorly to the deep side of the face. Due to the lack of suitable surgical instruments, doctors can only use nerve strippers, curved hemostats, Alis Use blind / semi-blind detection methods to find free medial condylar sagittal fracture fragments based on clinical experience; ③ After capturing free medial condylar sagittal fracture fragments, use curved forceps or similar During the reduction process of the instrument, the "secondary fracture" of the fracture fragment is often caused, and more small bone fragments are formed, which increases the difficulty of treatment. Difficult to bend forceps reset, often need to cut off the tendon to completely dissociate the fracture and reset, which means that the blood supply of the condyle is stripped, resulting in the absorption of the condyle after operation; Important vascular and nerve tissues, such as the main trunk and branches of the facial nerve, the posterior facial vein, and the internal maxillary artery, etc., may easily cause damage to the anatomical structure by using inappropriate instruments during operation, resulting in a higher complication rate of condylar sagittal fracture surgery than that of maxillofacial fractures. Other surgical operations, such as internal maxillary artery hemorrhage, facial paralysis, etc.

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