中国医疗设备
中國醫療設備
중국의료설비
CHINA MEDICAL EQUIPMENT
2015年
2期
33-37
,共5页
肾脏移植%离体肾脏低温保存%半导体变温技术%PID控制
腎髒移植%離體腎髒低溫保存%半導體變溫技術%PID控製
신장이식%리체신장저온보존%반도체변온기술%PID공제
kidney transplantation%preservation of isolated kidneys in low temperature%semiconductor temperature control technology%proportional-integral-derivative control
肾移植是治疗终末期肾病综合症的主要方法之一,供体肾脏离体后的低温保存是影响手术成功的重要因素。本文阐述了一种简便、精度高、控制速度快的离体肾脏保存箱的温度控制系统的研制过程。该系统采用半导体变温技术来控制离体肾脏保存箱的温度,其测温传感器采用稳定性好、示值复现性高的铂电阻(Pt100),温度控制策略采用PID控制。测试结果表明,系统在工作环境(23℃±2℃)条件下的温度过冲<0.3℃,温度控制精度为±0.2℃,符合离体肾脏保存对温度的要求。
腎移植是治療終末期腎病綜閤癥的主要方法之一,供體腎髒離體後的低溫保存是影響手術成功的重要因素。本文闡述瞭一種簡便、精度高、控製速度快的離體腎髒保存箱的溫度控製繫統的研製過程。該繫統採用半導體變溫技術來控製離體腎髒保存箱的溫度,其測溫傳感器採用穩定性好、示值複現性高的鉑電阻(Pt100),溫度控製策略採用PID控製。測試結果錶明,繫統在工作環境(23℃±2℃)條件下的溫度過遲<0.3℃,溫度控製精度為±0.2℃,符閤離體腎髒保存對溫度的要求。
신이식시치료종말기신병종합증적주요방법지일,공체신장리체후적저온보존시영향수술성공적중요인소。본문천술료일충간편、정도고、공제속도쾌적리체신장보존상적온도공제계통적연제과정。해계통채용반도체변온기술래공제리체신장보존상적온도,기측온전감기채용은정성호、시치복현성고적박전조(Pt100),온도공제책략채용PID공제。측시결과표명,계통재공작배경(23℃±2℃)조건하적온도과충<0.3℃,온도공제정도위±0.2℃,부합리체신장보존대온도적요구。
Renal transplantation is one of the main treatments for the end-stage nephrotic syndrome. In order to improve the success rate of transplantation, the donor kidney should be preserved in low temperature before transplantation. In this paper, an easy-to-use temperature control system with high precision and rapid response speed for isolated kidney preservation device was presented. The semiconductor temperature control technology was applied in this system to control the temperature of isolated kidneys. The platinum resistance (Pt100) was used as temperature sensor and the PID (proportional-integral-derivative) controller was taken as the temperature control policies. According to the experimental results, the temperature overshoot of the system was less than 0.3 ℃ and the temperature accuracy was ±0.2℃when it worked at the temperature of 23℃±2℃, which satisifed the temperature requirements of preservation of isolated kidneys.