基于非齐次泊松过程的康复诊疗设备可靠性建模研究  

Research on reliability modeling of rehabilitation diagnosis and treatment equipment based on non-homogeneous Poisson process

作　　者：张刘洋 王庆梅 屈太梅[1] 康娟[3] Zhang Liuyang;Wang Qingmei;Qu Taimei;Kang Juan(General Therapy Department,Second Medical Center,Chinese PLA General Hospital,National Clinical Research Center of Geriatrics Diseases,Beijing 100853,China;Injuries Management Department,First Medical Center,Chinese PLA General Hospital,Beijing 100853,China;Emergency Department,Second Medical Center,Chinese PLA General Hospital,National Clinical Research Center of Geriatrics Diseases,Beijing 100853,China)

机构地区：[1]解放军总医院第二医学中心综合治疗科,国家老年疾病临床医学研究中心,北京100853 [2]解放军总医院第一医学中心伤病员管理科,北京100853 [3]解放军总医院第二医学中心急诊科,国家老年疾病临床医学研究中心,北京100853

出　　处：《中国医学装备》2024年第7期122-127,共6页China Medical Equipment

摘　　要：目的:研究基于非齐次泊松过程的康复诊疗设备可靠性建模方法,提升康复诊疗设备可靠性分析效果。方法:统计和分析康复诊疗设备在特定时间段内的总运行时间,对其运行数据展开趋势检验,以浴盆曲线为康复诊疗设备故障时的变化趋势;在浴盆曲线变化趋势条件下建立康复诊疗设备非齐次泊松过程可靠性模型;采用最小二乘估计法,估计康复诊疗设备的非齐次泊松过程可靠性模型参数,确定康复诊疗设备的可靠性指标,完成康复诊疗设备可靠性建模,并用于康复诊疗设备管理中。选取2022年4—10月解放军总医院第二医学中心临床在用的17台康复诊疗设备,其中脉冲短波治疗仪6台,干扰电治疗仪5台,吞咽障碍治疗仪3台,空气波压力治疗仪3台,2022年7月医院将基于非齐次泊松过程的康复诊疗设备可靠性建模方法应用于康复诊疗设备管理,对比基于非齐次泊松过程的康复诊疗设备可靠性建模方法应用前后康复诊疗设备的故障率变化。结果:17台康复诊疗设备可靠性建模方法应用前的平均故障率为64.71%(11/17),应用后降至23.53%(4/17),其中6台脉冲短波治疗仪故障率由应用前的66.7%(4/6)降至16.7%(1/6),5台干扰电治疗仪故障率由应用前的60.0%(3/5)降至20.0%(1/5),3台吞咽障碍治疗仪故障率由应用前的66.7%(2/3)降至33.3%(1/3),3台空气波压力治疗仪故障率由应用前的66.7%(2/3)降至33.3%(1/3)。结论:基于非齐次泊松过程的康复诊疗设备可靠性建模方法能够精准计算康复诊疗设备的故障强度函数与累积故障强度函数,降低康复诊疗设备故障率,提升康复诊疗设备使用质量。Objective:To study the reliability modeling method of rehabilitation diagnosis and treatment equipment based on non-homogeneous Poisson process,and to improve the reliability analysis effect of rehabilitation diagnosis and treatment equipment.Methods:Statistics and analysis of the total running time of rehabilitation diagnosis and treatment equipment in a specific period of time were performed,and the trend test of its operation data was conducted.The bathtub curve was used as the trend of rehabilitation diagnosis and treatment equipment failure,under the condition of bathtub curve change trend,a reliability model of non-homogeneous Poisson process of rehabilitation diagnosis and treatment equipment was established.The least squares estimation method was used to estimate the non-homogeneous Poisson process reliability model parameters of rehabilitation diagnosis and treatment equipment,determine the reliability index of rehabilitation diagnosis and treatment equipment,and complete the reliability modeling of rehabilitation diagnosis and treatment equipment.A total of 17 rehabilitation diagnosis and treatment equipment in clinical use in the Second Medical Center of PLA General Hospital from April to October 2022 were selected,including 6 pulse short-wave therapy instruments,5 interference electrical therapy instruments,3 swallowing disorder treatment instruments,and 3 air wave pressure therapy instruments.In July 2022,the reliability modeling method of rehabilitation diagnosis and treatment equipment based on non-homogeneous Poisson process was applied to the management of rehabilitation diagnosis and treatment equipment.The failure rate of rehabilitation diagnosis and treatment equipment before and after the application of the reliability modeling method based on non-homogeneous Poisson process was compared.Results:The average failure rate of 17 rehabilitation diagnosis and treatment equipment was 64.71%(11/17)before application and decreased to 23.53%(4/17)after application,of which the failure rate of 6 pulse

关 键 词：非齐次泊松过程 康复诊疗设备 可靠性建模 最小二乘估计 可靠性指标 

分 类 号：R197.39[医药卫生—卫生事业管理]