A Chinese hospital announced on Tuesday that doctors have recreated a breast for a cancer patient using 4D printing.
星期二，中國一家醫(yī)院宣稱，醫(yī)生用4D打印技術(shù)為一位乳腺癌患者進(jìn)行了乳房重建。

The surgery was performed on August 8, 2016, and the printed breast has grown well with the patient's own tissue, said Ling Rui, a vascular surgery doctor with Xijing Hospital of the Fourth Military Medical University in Xi'an, Shaanxi Province.
陜西西安第四軍醫(yī)大學(xué)西京醫(yī)院的血管外科醫(yī)生凌瑞表示，該手術(shù)是在2016年8月8日進(jìn)行的，打印的乳房在病人的組織上生長良好。

The patient underwent a mastectomy for her left breast last year, before having the surgery.
去年在進(jìn)行這一手術(shù)之前，這位病人進(jìn)行了左側(cè)乳房切除手術(shù)。

"Compared with three-dimensional printing, 4D printing adds time as another dimension," said Ling.
凌醫(yī)生表示，“與三維打印相比，4D打印加入了時間維度。”

Doctors collected data on the size of her tumor and original breast, and reconstructed a bio-degradable breast.
醫(yī)生收集了病人腫瘤和原乳房的尺寸等數(shù)據(jù)，然后用生物可降解材料進(jìn)行了乳房重建。

The implant was developed by the hospital with a national lab of Xi'an Jiaotong University.
該植入技術(shù)是由西京醫(yī)院與西安交通大學(xué)的一個國家實驗室共同研制的。

"It is sufficiently strong, and will degrade in designed period of time, which is in the patient's case one to two years," said Zhang Juliang, an assistant professor in Xijing Hospital who participated in the surgery.
西京醫(yī)院參與該手術(shù)的助理教授張聚良表示，“重建的乳房很強(qiáng)健，而且在設(shè)定的時間內(nèi)就會降解，對于這位病人，降解將需要一到兩年的時間?！?/div>

Its porous nature allows human tissue to grow into the implant and ultimately replace it, Zhang said.
材料的可滲透性使人體組織可以在植入體中生長，最終替代該植入體，張教授說道。

"In the ten months since the surgery, the implant has grown well, and the patient's veins and tissue have started to grow back," Ling said.
“自手術(shù)起十個月之后，植入體生長良好，而且病人的血管和組織開始重新長出來了，”凌醫(yī)生說道。

Compared to existing methods of breast reconstruction, the method has fewer side-effects, Ling said.
凌醫(yī)生表示，與現(xiàn)存的乳房重建術(shù)相比，這種方法的副作用更小。

（翻譯：Dlacus）

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