用4D打印治療乳腺癌

A Chinese hospital announced on Tuesday that doctors have recreated a breast for a cancer patient using 4D printing.
星期二，中國一家醫院宣稱，醫生用4D打印技術爲一位乳腺癌患者進行了乳房重建。

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.
陝西西安第四軍醫大學西京醫院的血管外科醫生凌瑞表示，該手術是在2016年8月8日進行的，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.
去年在進行這一手術之前，這位病人進行了左側乳房切除手術。

"Compared with three-dimensional printing, 4D printing adds time as another dimension," said Ling.
凌醫生表示，“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.
醫生收集了病人腫瘤和原乳房的尺寸等數據，然後用生物可降解材料進行了乳房重建。

The implant was developed by the hospital with a national lab of Xi'an Jiaotong University.
該植入技術是由西京醫院與西安交通大學的一個國家實驗室共同研製的。

"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.
西京醫院參與該手術的助理教授張聚良表示，“重建的乳房很強健，而且在設定的時間內就會降解，對於這位病人，降解將需要一到兩年的時間。”

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.
“自手術起十個月之後，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，”凌醫生說道。

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