Mandible operation spatial modeling method for intraoral incison

Abstract

The invention relates to a mandible operation spatial modeling method for an intraoral incision. The mandible operation spatial modeling method comprises the following steps: step (1), acquiring scanning data of an operative position of a patient; step (2) performing circular scanning on an operative incision space of the patient to obtain incision spatial data, and reconstructing the incision spatial data; step (3) constructing an incision model according to the reconstructed incision spatial data; and (4) fitting the scanning data of the body position of the patient with the incision model to obtain a virtual oral cavity model. According to the mandible operation spatial modeling method, by acquiring and reconstructing the incision spatial data, the purpose of constructing a relatively accurate actual operation space can be achieved, which is conducive to selection, planning and teaching of an operation scheme.

Description

technical field [0001] The invention relates to the technical field of computer-aided medical treatment, in particular to a method for modeling the mandibular surgery space of an intraoral incision. Background technique [0002] The increasing use of virtual surgical simulation systems in the field of surgery has become an indispensable tool in areas such as medical training, surgical planning, protocol selection, and medical device development, both ethically and technically. [0003] In order to avoid obvious scars, current mandibular surgery is generally performed through an intraoral incision. Since there is only the patient's CT data before the operation, real-time CT scanning cannot be performed during the operation, and the virtual simulation surgery system can only simulate the patient's bone tissue. During the actual operation, under the interference of surgical instruments such as retractors, the soft tissue will deform, which is completely different from the preo...

AI Technical Summary

Problems solved by technology

Due to the lack of soft tissue information, it is difficult to simulate and plan the motion trajectory of the chainsaw under the control of the power system before surgery, which leads to the disconnection between the current virtual surgery plan and the actual surgery situation

[0004] Since the incision of mandibular surgery is generally performed through an intraoral incision, when soft tissues such as buccal mucosa, muscle, and periosteum are separated, with the help of retractors, an irregular semi-closed tunnel-like incision space with a small mouth and a large interior will be formed. It is difficult for ordinary infrared scanning devices to obtain corresponding data by using markers in such a narrow environment, and intraoperative modeling is difficult and time-consuming

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