【摘要】：利用CT數(shù)據(jù)處理技術(shù)與夾持工藝進(jìn)行頭蓋骨鈦網(wǎng)補(bǔ)片數(shù)字化設(shè)計(jì)與制備是一種新的設(shè)計(jì)制造方法。以典型的超大面積頭蓋骨缺損患者為研究對(duì)象,首先將病人頭部的CT斷層數(shù)據(jù)按照醫(yī)學(xué)圖像切割方法進(jìn)行骨骼與頭皮、腦組織的圖像邊緣切割,運(yùn)用配準(zhǔn)方法將切割出的頭蓋骨斷層圖像進(jìn)行配準(zhǔn),并應(yīng)用三維可視化技術(shù)實(shí)現(xiàn)患者頭蓋骨數(shù)學(xué)模型的重構(gòu)。然后在此基礎(chǔ)上,使用薄板樣條插值技術(shù)按照頭蓋骨健康側(cè)曲面延展過(guò)渡得到頭蓋骨補(bǔ)片的數(shù)學(xué)模型。最后,根據(jù)頭蓋骨補(bǔ)片的數(shù)學(xué)模型設(shè)計(jì)出頭蓋骨補(bǔ)片沖壓成形所用的凸凹模具,并加工出所需的頭蓋骨鈦網(wǎng)補(bǔ)片。該技術(shù)解決了頭蓋骨補(bǔ)片制備中存在的加工精度低、制作成本高、周期長(zhǎng)等問(wèn)題,同時(shí)提高了補(bǔ)片與缺損邊緣的貼合精度。
[Abstract]:It is a new design and manufacture method to use CT data processing technology and gripping technology to design and fabricate the titanium mesh patch of skull. The typical patients with large area skull defect were studied. The CT data of the head of the patient were first cut according to the medical image cutting method, and the image edge of the bone, scalp and brain tissue was cut according to the medical image cutting method. The image of cranium was registered by registration method, and the reconstruction of mathematical model of cranium was realized by 3D visualization. Then, the mathematical model of scalp patch is obtained by using the thin plate spline interpolation technique according to the extension of the scalp healthy lateral surface. Finally, according to the mathematical model of the skull patch, the convex and concave die used in the stamping forming of the skull patch was designed, and the needed titanium mesh patch of the skull was processed. The technology solves the problems of low processing precision, high cost and long period in the preparation of cranium patch, and improves the accuracy of fitting the patch to the defect edge at the same time.
【作者單位】： 燕山大學(xué)車輛與能源學(xué)院;北華大學(xué)機(jī)械工程學(xué)院;
【基金】：河北省自然科學(xué)基金資助項(xiàng)目(E2015203002) 秦皇島市科學(xué)技術(shù)研究項(xiàng)目(201701B039)
【分類號(hào)】：R318.08;TG146.23

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