Atlantoaxial vertebrae fixing plate with guiding holes and using method of atlantoaxial vertebrae fixing plate

Abstract

The invention discloses an atlantoaxial vertebrae fixing plate with guiding holes and a using method of the atlantoaxial vertebrae fixing plate. The atlantoaxial vertebrae fixing plate comprises a plate body, wherein fixing plates are arranged at four corners of the plate body; bone grafting grooves are formed in four edges of the plate body; a plurality of guiding holes are formed in each fixingplate, and the guiding holes are in different angles; guiding threads are formed in the inner surface of each guiding hole; an axial lead of each guiding thread is coincided with that of the corresponding guiding hole; a plurality of positioning holes are formed in each fixing plate; and the positioning holes are in different angles. According to the atlantoaxial vertebrae fixing plate with the guiding holes and the using method of the atlantoaxial vertebrae fixing plate disclosed by the invention, the individual atlantoaxial vertebrae fixing plate is customized for a patient, so that the angles, the numbers and the positions of the guiding holes and the positioning holes are more reasonable; the designing directions of the guiding holes and the positioning holes are consistent with screwplacing directions, operation is kept away from important tissue of the patient, the situation that the fixing plate is grafted relying on the experience of operators is avoided, the situation that the atlantoaxial vertebrae screws are wrongly placed is avoided, and the treatment effect is strengthened.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an atlantoaxial fixation plate with a guide hole and a use method thereof. Background technique [0002] Transoropharyngeal approach for the treatment of atlantoaxial dislocation is a commonly used method for the treatment of atlantoaxial dislocation. It has the advantages of direct approach, simple anatomical level, no direct stretching of the cervical medulla, and direct relief of ventral compression of the spinal cord. [0003] Although the existing atlantoaxial fixation plate has the effect of fixing the atlantoaxial vertebra, it also has the following deficiencies: (1), the existing atlantoaxial fixation plate is fixed in the position of the nail hole, and is a non-anatomical steel plate. The area of ​​the screw is limited; (2) the medulla oblongata is located behind the atlantoaxial spine, and the vertebral artery is located on the outside, and the insertion angle o...

AI Technical Summary

Problems solved by technology

[0003] Although the existing atlantoaxial fixation plate has the effect of fixing the atlantoaxial vertebra, it also has the following deficiencies: (1), the existing atlantoaxial fixation plate is fixed in the position of the nail hole, and is a non-anatomical steel plate. The area of ​​the screw is limited; (2) the medulla oblongata is located behind the atlantoaxial spine, and the vertebral artery is located on the outside, and the insertion angle of the reverse atlantoaxial screw depends on the experience of the surgeon, and the spinal cord may be damaged due to improper placement of the atlantoaxial screw. Hematoma, even severe complications such as respiratory depression; (3) Although there are guide templates for orthopedic nail placement in the prior art, the space in the oral cavity is narrow, and the guide templates are difficult to use with the atlantoaxial fixation plate

Images