目的:为了实现对人体生理健康状况的无线监测,设计一种集成体温和皮肤水化传感的近场通信(near field communication,NFC)系统。方法:该系统由NFC标签端(体温和皮肤水化监测终端)、NFC协议读写器端(NFC读写器或支持NFC协议的手机)和上位...目的:为了实现对人体生理健康状况的无线监测,设计一种集成体温和皮肤水化传感的近场通信(near field communication,NFC)系统。方法:该系统由NFC标签端(体温和皮肤水化监测终端)、NFC协议读写器端(NFC读写器或支持NFC协议的手机)和上位机(PC或支持NFC协议的手机)3个部分组成。NFC标签端完成体温和皮肤水化生理参数的采集,包含NFC标签芯片(选用RF430FRL152H芯片)、体温传感电路和皮肤水化传感电路;NFC协议读写器端以无线方式读取NFC标签端数据,并将数据转发至上位机进行处理与显示,其中NFC读写器选用TRF7970A评估板;上位机采用状态机的方法进行编程,其中PC程序采用LabVIEW语言开发,手机端应用程序是由德州仪器开发的适用于Android手机的应用程序。对该系统测量体温和皮肤水化的效果进行模拟实验,并进行无线能量传输距离测量实验。结果:实验表明,NFC标签端能够测量体温和皮肤水化参数,其中温度测量精度为0.1℃,皮肤水化测量结果与皮肤水化测试仪的测量结果近似;将TRF7970A评估板作为读写器端时,测得最大传输距离为3.6 cm,使用支持NFC协议的手机作为读写器端时,测得最大传输距离为1.0 cm。结论:该系统可以实时监测体温和皮肤水化变化情况,且具有小型化、无电池和无线连接的特性,能够用于医疗保健和健康监测。展开更多
Background Diabetes mellitus has become epidemic in recent years in China. We investigated the prevalence of hyperglycaemia and inadequate glycaemic control among type 2 diabetic inpatients from ten university teachin...Background Diabetes mellitus has become epidemic in recent years in China. We investigated the prevalence of hyperglycaemia and inadequate glycaemic control among type 2 diabetic inpatients from ten university teaching hospitals in Guangdong Province, China. Methods Inadequate glycaemic control in diabetic patients was defined as HbA1c 〉 6.5%. Therapeutic regimens included no-intervention, lifestyle only, oral antiglycemic agents （OA）, insulin plus OA （insulin＋OA）, or insulin only. Antidiabetic managements included monotherapy, double therapy, triple or quadruple therapy. Results Among 493 diabetic inpatients with known history, 75% had HbA1c ≥ 6.5%. inadequate glucose control rates were more frequently seen in patients on insulin＋OA regimen （97%） ,than on OA regimen （71%） （P 〈0.001）, and more frequent in patients on combination therapy （81%-96%） than monotherapy （7,5%） （P 〈0.0,5）. Patients on insulin differed significantly from patients on OA by mean HbA1c, glycemic control rate, diabetes duration, microvascular complications, and BMI （P 〈0.01）. Conclusions This study showed that glycaemic control of type 2 diabetic patients deteriorated for patients who received insulin and initiation time of insulin was usually delayed, it is up to clinicians to move from the traditional stepwise therapy to a more active and early combination antidiabetic therapy to provide better glucose control.展开更多
文摘目的:为了实现对人体生理健康状况的无线监测,设计一种集成体温和皮肤水化传感的近场通信(near field communication,NFC)系统。方法:该系统由NFC标签端(体温和皮肤水化监测终端)、NFC协议读写器端(NFC读写器或支持NFC协议的手机)和上位机(PC或支持NFC协议的手机)3个部分组成。NFC标签端完成体温和皮肤水化生理参数的采集,包含NFC标签芯片(选用RF430FRL152H芯片)、体温传感电路和皮肤水化传感电路;NFC协议读写器端以无线方式读取NFC标签端数据,并将数据转发至上位机进行处理与显示,其中NFC读写器选用TRF7970A评估板;上位机采用状态机的方法进行编程,其中PC程序采用LabVIEW语言开发,手机端应用程序是由德州仪器开发的适用于Android手机的应用程序。对该系统测量体温和皮肤水化的效果进行模拟实验,并进行无线能量传输距离测量实验。结果:实验表明,NFC标签端能够测量体温和皮肤水化参数,其中温度测量精度为0.1℃,皮肤水化测量结果与皮肤水化测试仪的测量结果近似;将TRF7970A评估板作为读写器端时,测得最大传输距离为3.6 cm,使用支持NFC协议的手机作为读写器端时,测得最大传输距离为1.0 cm。结论:该系统可以实时监测体温和皮肤水化变化情况,且具有小型化、无电池和无线连接的特性,能够用于医疗保健和健康监测。
文摘Background Diabetes mellitus has become epidemic in recent years in China. We investigated the prevalence of hyperglycaemia and inadequate glycaemic control among type 2 diabetic inpatients from ten university teaching hospitals in Guangdong Province, China. Methods Inadequate glycaemic control in diabetic patients was defined as HbA1c 〉 6.5%. Therapeutic regimens included no-intervention, lifestyle only, oral antiglycemic agents （OA）, insulin plus OA （insulin＋OA）, or insulin only. Antidiabetic managements included monotherapy, double therapy, triple or quadruple therapy. Results Among 493 diabetic inpatients with known history, 75% had HbA1c ≥ 6.5%. inadequate glucose control rates were more frequently seen in patients on insulin＋OA regimen （97%） ,than on OA regimen （71%） （P 〈0.001）, and more frequent in patients on combination therapy （81%-96%） than monotherapy （7,5%） （P 〈0.0,5）. Patients on insulin differed significantly from patients on OA by mean HbA1c, glycemic control rate, diabetes duration, microvascular complications, and BMI （P 〈0.01）. Conclusions This study showed that glycaemic control of type 2 diabetic patients deteriorated for patients who received insulin and initiation time of insulin was usually delayed, it is up to clinicians to move from the traditional stepwise therapy to a more active and early combination antidiabetic therapy to provide better glucose control.
