一种连续性肾脏替代治疗透析液袋加温保温装置及温控系统的设计与应用

Design and application of heating device and temperature control system for dialysis fluid bag in continuous renal replacement therapy

在连续性肾脏替代治疗(CRRT)过程中,置换液自身的温度、液体流量及血液在体外循环等多种因素,导致回输至体内的血液温度往往低于正常,从而引起患者体温下降,造成低体温,严重时可危及生命。临床中,医护人员大多采用机器自带的加温装置、体外循环液体温箱、升温毯等方式减少CRRT患者低体温的发生,但效果均不理想。为此,安徽医科大学第二附属医院重症医学一科医护人员设计了一种CRRT透析液袋加温保温装置及温控系统,获得了国家发明专利(专利号:ZL 202110334906.7)。该装置包括加温保温装置和温控系统,其中加温保温装置由加热透析液袋的本体和温控结构组成,解决了CRRT治疗过程中难以对液体实施安全高效加温及保温的问题;温控系统通过数据采集、数据处理、数据分析、调控、显示5个模块之间的配合使用,能显示患者体温的动态变化,及时调整透析液袋温度,并实时监测回输血液温度。将该装置应用于CRRT,可实现对危重症患者体温的精准管控,具有一定临床意义。

In the process of continuous renal replacement therapy(CRRT),various factors such as the temperature of replacement fluid,the flow of fluid and the circulation of blood in cardiopulmonary bypass,lead to the temperature of the blood injected back into the body is often lower than normal.It leads to the decrease of body temperature and the occurrence of hypothermia,which can be life-threatening in severe cases.In clinical practice,medical staff mostly reduces the occurrence of hypothermia in patients with CRRT by means of the heating device of the machine,the heating of the liquid temperature box for cardiopulmonary bypass,and the application of heating blankets,but the effect is not ideal.Therefore,medical staff of the department of critical care medicine of the Second Affiliated Hospital of Anhui Medical University designed a heating device and temperature control system for CRRT dialysis fluid bag,and obtained the National Invention Patent of China(ZL 202110334906.7).The device includes a heating and thermal insulation device and a temperature control system,wherein the heating and thermal insulation device is composed of the body of the heating dialysis fluid bag and the temperature control structure,which solves the problems of safe and efficient liquid heating and thermal insulation during the CRRT process.The temperature control system can display the dynamic state of the patient's body temperature,adjust the temperature of the dialysis fluid bag in time,and monitor the temperature of the blood transfusion in real time through the cooperation of the five modules of data collection,data handle,data analysis,regulation and display.This design is applied to CRRT,which can achieve precise control of body temperature of critically ill patients,and has certain clinical significance.