Head and neck soft tissue defect reconstruction operation template design method based on curved surface feature classification processing and expansion and operation template

Abstract

The invention discloses a head and neck soft tissue defect reconstruction operation template design method based on curved surface feature classification processing and expansion. The method comprisesthe following steps: 1, carrying out expandability analysis and curved surface classification on head and neck soft tissue surface curvature distribution based on a standard model; 2, designing and preparing a soft tissue analysis and defect area soft tissue excision template and a flap acquisition template of a specific case lesion area. According to the head and neck soft tissue defect reconstruction operation template design method based on curved surface feature classification processing and expansion and an operation template, a supply area soft tissue three-dimensional model and a defect part three-dimensional model can be constructed based on CT data of a patient before an operation; the shape and the size of the transplanted flap are accurately designed according to the actual shape requirement of a defect part, a doctor is guided to accurately complete flap obtaining, shaping, transplanting and other surgical operations by designing and manufacturing a surgical template, andthe problem of accurate reconstruction of soft tissue defects after head and neck tumor excision can be effectively solved.

Description

technical field [0001] The invention relates to the field of soft tissue defect reconstruction of the human head and neck, in particular to a surgical template design method and a surgical template for the reconstruction of soft tissue defects of the head and neck based on surface feature classification processing and unfolding. Background technique [0002] The head and neck area is a high-incidence area of ​​human tumors, and clinically, surgery-based comprehensive treatment is generally adopted. However, due to the complex anatomical structure and special function of the head and neck tumor site, surgical resection of the tumor will produce defects of varying degrees, which will seriously affect the appearance and physiological functions of the patient, including swallowing, chewing, breathing and vocalization, etc., bringing great harm to the patient. psychological and physical impairments. For large-area soft tissue defects, autologous skin flap transplantation is gene...

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Problems solved by technology

[0005] In order to solve the current clinical dependence on the experience of doctors when using skin flap transplantation to repair soft tissue defects after resection of head and neck tumors, especially the inaccurate size of the obtained skin flaps caused unnecessary damage to the donor site of the skin flaps and unsatisfactory reconstruction and repair effects, The present invention proposes a surgical template design method and surgical template for head and neck soft tissue defect reconstruction based on surface feature classification and development, which can construct a three-dimensional model of soft tissue at the donor site and a three-dimensional model of the defect site based on the patient's CT data before the operation, and according to According to the actual shape requirements of the defect site, accurately design the shape and size of the transplanted flap, and guide the doctor to accurately complete the surgical operations such as flap acquisition, shaping, and transplantation through the design and production of surgical templates, which will effectively solve the problem of head and neck tumor resection. Accurate reconstruction of postoperative soft tissue defects, improving the accuracy, quality and efficiency of reconstruction and repair

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