A bone tumor bionic repair system

A repair system and technology for bone tumors, applied in the field of bionic repair systems for bone tumors, can solve the problems of limited bone extraction, bone donor area damage, rejection, high infection rate, etc.

Active Publication Date: 2019-06-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

Autologous bone grafting is the gold standard for bone repair, but the source and amount of bone taken are limited and cause damage to the bone donor area; although allogeneic bone grafting is not limited by the source and shape, the postoperative rejection and...

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  • A bone tumor bionic repair system
  • A bone tumor bionic repair system
  • A bone tumor bionic repair system

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Embodiment Construction

[0059] In view of the uncertainty of the location, type, and size of bone tumors, 3D printing-oriented bone tumor repair needs to be designed with precise digital repair plans before surgery, with the design goal of approaching the external shape, internal structure, and mechanical properties of autogenous bone. And ensure the manufacturability of the repair model built.

[0060] In the embodiment of the present invention, for the image data from different patients, the tumor image data of the patient is firstly segmented with semantic characteristics, the area corresponding to the target bone tissue is accurately segmented and extracted, and the three-dimensional reconstruction of the bone surface model based on the envelope and approximation is carried out. Algorithm to achieve accurate reconstruction of segmentation results; for bone loss caused by bone tumors, according to the biomedical characteristics of the skeletal system, build a bionic constraint set and restoration a...

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Abstract

The invention discloses a bionic repair system for bone tumors and belongs to the field of computer-aided biomedical engineering and the system comprises a bone tumor image data input unit, a bone tissue region segmentation and surface morphology reconstruction unit, a bone tumor curved surface model unit, an integrated restoration prosthesis design unit and a bionic multi-cavity integrated restoration prosthesis output unit. Wherein the bone tissue region segmentation and surface morphology reconstruction unit comprises a supervoxel division subunit, a statistical machine learning segmentation subunit and a bone curved surface model reconstruction subunit; The integrated restoration prosthesis design unit comprises a bone loss form restoration subunit, an internal structure design subunitand an internal fixation prosthesis design subunit; According to the personalized and precise bone tumor repair system constructed by the invention, the automation of the design process is improved,and the complexity and inconvenience of the design process are reduced, so that the final repair prosthesis has good biocompatibility and mechanical property.

Description

technical field [0001] The invention belongs to the field of computer-aided biomedical engineering, and in particular relates to a bionic repair system for bone tumors. Background technique [0002] Bone loss caused by tumor resection is one of the important factors leading to loss of skeletal function. For local bone loss, there are mainly two methods of transplantation and repair: biological bone (including: autologous bone and allogeneic bone) and artificial bone. Autologous bone grafting is the gold standard for bone repair, but the source and amount of bone taken are limited and cause damage to the bone donor site; although allogeneic bone grafting is not limited by the source and shape, the postoperative rejection and infection rates are relatively high. high. Artificial bones with certain biocompatibility manufactured by traditional machining are widely used in the field of bone repair, but there are usually mismatching problems in terms of structural shape and mecha...

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Application Information

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IPC IPC(8): G06T17/20G06T7/11
Inventor 袁天然汪俊罗春英侯志伟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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