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    赵红莉, 钱彬, 徐彬凯, 蓝闽波. 用于前列腺冷冻消融的电加热尿道保温装置[J]. 华东理工大学学报(自然科学版), 2019, 45(6): 891-898. DOI: 10.14135/j.cnki.1006-3080.20180830004
    引用本文: 赵红莉, 钱彬, 徐彬凯, 蓝闽波. 用于前列腺冷冻消融的电加热尿道保温装置[J]. 华东理工大学学报(自然科学版), 2019, 45(6): 891-898. DOI: 10.14135/j.cnki.1006-3080.20180830004
    ZHAO Hongli, QIAN Bin, XU Binkai, LAN Minbo. Apparatus for Electrical Urethral Heater Used in Prostate Cryoablation[J]. Journal of East China University of Science and Technology, 2019, 45(6): 891-898. DOI: 10.14135/j.cnki.1006-3080.20180830004
    Citation: ZHAO Hongli, QIAN Bin, XU Binkai, LAN Minbo. Apparatus for Electrical Urethral Heater Used in Prostate Cryoablation[J]. Journal of East China University of Science and Technology, 2019, 45(6): 891-898. DOI: 10.14135/j.cnki.1006-3080.20180830004

    用于前列腺冷冻消融的电加热尿道保温装置

    Apparatus for Electrical Urethral Heater Used in Prostate Cryoablation

    • 摘要: 在标准导尿管的基础上,改装了一种电加热尿道保温装置,以降低医生手术中的操作和判断困难,并对该装置进行了模拟计算和体外实验测试。在使用高精度的PID控制器控制温度的同时,研究了不同加热功率对保温装置最低壁温的影响,并与水热式保温装置进行比较。体外实验中,在加热功率为9 W和使用两把冷冻消融刀的工作环境下,在冷冻30 min后保温管表面最低温度仍然能保证高于细胞致死温度(−22 ℃)。电加热尿道保温装置是一种应对冷冻手术中尿道低温损伤的有效方式。

       

      Abstract: Extremely low temperature will generate around the urethra during cryosurgery, which could probably result in cryoinjury in urethra. However, the urethral warmer (heated by water) existing in the current market is lacking of offering a precise control over the temperature, which gives rise to post complications in prostate. In this paper, an electrical protective urethral heater was reformed from standard urethral catheter with the aim to assist doctors’ operation for an effective therapy. A sophisticated temperature controller was used to regulate the heating behavior of the urethral heater. The impact of different heating powers on the temperature of the wall of urethra was studied, which was simulated and tested in vitro and compared with urethral warmer. During the trials in vitro, the lowest temperature at the surface of urethral heater is higher than the sub-lethal temperature (−22 ℃) under the heating power of 9 W and two cryoprobes after cryoablation for 30 min. Therefore, urethral heater is an effective way to protect urethra from cryoinjury.

       

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