Qiu C Y
251 Hospital, People's Liberation Army, Zhangjiakou.
Zhonghua Wai Ke Za Zhi. 1993 May;31(5):272-4.
The nitinol (shape memory alloy, SMA) spiral was used in 39 patients with benign prostatic hyperplasia (BPH). Caine experiment indicated that the spiral could be embedded by prostatic urethra epithelium in 6 months. The new transitional epithelium between spiral wires was originated from the urethra transitional epithelium as proved by immunohistochemical staining. The parts of spiral project over the bladder cavity formed incrustation on the spiral tip. The nitinol is of super-elastic property, corrosive-resistance and excellent biocompatibility, in addition to unique shape memory effect. We treated 39 patients with BPH by self-made coaxial sheath introducing Chinese nitinol spiral into the prostatic urethra, with a successful rate of 89.7%. Follow-up for 3-26 months showed no incrustation and migration of the spiral.
将镍钛诺（形状记忆合金，SMA）螺旋体用于39例良性前列腺增生（BPH）患者。凯恩实验表明，6个月时螺旋体可被前列腺尿道上皮包埋。免疫组化染色证明，螺旋丝之间的新移行上皮起源于尿道移行上皮。螺旋体突出于膀胱腔的部分在螺旋体尖端形成结痂。镍钛诺除具有独特的形状记忆效应外，还具有超弹性、耐腐蚀和优异的生物相容性。我们采用自制同轴鞘将国产镍钛诺螺旋体引入前列腺尿道治疗39例BPH患者，成功率为89.7%。随访3 - 26个月，未见螺旋体结痂和移位。
