目的介绍在手部肌腱功能重建术中使用完全清醒的无止血带局部麻醉技术(Wide-awake麻醉技术)的方法和临床疗效。方法回顾性分析2016年1月-2021年3月应用Wide-awake麻醉技术行前臂肌肉肌腱转位功能重建术治疗的31例手部功能部分丧失患者...目的介绍在手部肌腱功能重建术中使用完全清醒的无止血带局部麻醉技术(Wide-awake麻醉技术)的方法和临床疗效。方法回顾性分析2016年1月-2021年3月应用Wide-awake麻醉技术行前臂肌肉肌腱转位功能重建术治疗的31例手部功能部分丧失患者的临床资料。分别通过使用视觉模拟评分法(VAS)对局麻操作即时(第1针刺入皮肤)、术中、术后24 h的疼痛程度进行评分,术后6周采用手指总主动活动度(Total active movement,TAM)系统评价法评定功能恢复情况;观察Wide-awake技术在手术中的应用效果及患手远期功能恢复疗效。结果术中应用Wide-awake麻醉技术后,手术切口止血及麻醉效果均满意。Wide-awake麻醉技术属于局部麻醉,术中患者可按照术者要求进行主动活动患手以评价肌腱缝合质量及调节肌腱张力;术后未出现麻醉并发症,切口均一期愈合。31例均获随访,随访时间6~11个月,平均8个月,根据TAM系统评价标准:优19例,良7例,中5例,差0例,优良率为83.9%(26/31)。结论在手部肌腱功能重建手术中应用Wide-awake麻醉技术,术中及术后麻醉效果满意,远期患手功能恢复良好,且术中与患者进行沟通,可更加准确地判断肌腱重建的效果,术后未出现麻醉并发症,疗效确切且安全有效。展开更多
Space-time coding radar has been recently proposed and investigated.It is a radar framework which can perform transmit beamforming at the receiver.However,the range resolution decreases when the number of the transmit...Space-time coding radar has been recently proposed and investigated.It is a radar framework which can perform transmit beamforming at the receiver.However,the range resolution decreases when the number of the transmit element increases.A subarray-based space-time coding(sub-STC)radar is explored to alleviate the range resolution reduction.For the proposed radar configuration,an identical waveform is transmitted and it introduces a small time offset in different subarrays.The multidimensional ambiguity function of sub-STC radar is defined by considering resolutions in multiple domains including the range,Doppler,angle and probing direction.Analyses on properties of the multi-dimensional ambiguity function of the sub-STC radar with regard to the spatial coverage,resolution performance and low sidelobes are also given.Results reveal that the range resolution and low sidelobes performance are improved with the proposed approach.展开更多
Bariatric and metabolic surgeries have gained extensive popularity and trust due to their documented efficacy and safety in managing not only obesity but also associated comorbidities such as diabetes mellitus, hypert...Bariatric and metabolic surgeries have gained extensive popularity and trust due to their documented efficacy and safety in managing not only obesity but also associated comorbidities such as diabetes mellitus, hypertension, dyslipidemia, sleep apnea, and joint pain. Traditionally, bariatric surgeries have been categorized into hypoabsorptive, restrictive, or hybrid approaches. However, these classifications inadequately reflect the complex anatomical and physiological alterations associated with modern surgical methodologies. This paper explores the evolution of metabolic surgeries, emphasizing the integration of physiological concepts into classic procedures to provide more tailored and effective treatment options for obesity and its comorbidities. Finally, the proposal for a new classification based on current metabolic concepts will facilitate communication among patients, doctors, and healthcare professionals. Additionally, it will enable a more didactic and standardized approach to data collection for conducting studies and publications.展开更多
针对单绕组宽转子齿结构无轴承开关磁阻电机(bearingless switched reluctance motor with wider rotor teeth,BSRMWR)的齿极绕组故障情况,基于该电机的本体结构与工作原理,提出一种兼顾转矩性能与悬浮力稳定性的补偿方法。建立适用于...针对单绕组宽转子齿结构无轴承开关磁阻电机(bearingless switched reluctance motor with wider rotor teeth,BSRMWR)的齿极绕组故障情况,基于该电机的本体结构与工作原理,提出一种兼顾转矩性能与悬浮力稳定性的补偿方法。建立适用于该悬浮力补偿方式的电机新型数学模型;为了在应用悬浮力补偿方式时的稳定悬浮,将一种新型悬浮力分配函数(force sharing function,FSF)引入电流斩波控制(current chopping control,CCC)策略。通过仿真软件及硬件实验平台,验证CCC&FSF控制方法对稳定悬浮力的有效性,以及基于CCC&FSF策略下的悬浮力补偿方法在绕组故障时的有效性。展开更多
文摘目的介绍在手部肌腱功能重建术中使用完全清醒的无止血带局部麻醉技术(Wide-awake麻醉技术)的方法和临床疗效。方法回顾性分析2016年1月-2021年3月应用Wide-awake麻醉技术行前臂肌肉肌腱转位功能重建术治疗的31例手部功能部分丧失患者的临床资料。分别通过使用视觉模拟评分法(VAS)对局麻操作即时(第1针刺入皮肤)、术中、术后24 h的疼痛程度进行评分,术后6周采用手指总主动活动度(Total active movement,TAM)系统评价法评定功能恢复情况;观察Wide-awake技术在手术中的应用效果及患手远期功能恢复疗效。结果术中应用Wide-awake麻醉技术后,手术切口止血及麻醉效果均满意。Wide-awake麻醉技术属于局部麻醉,术中患者可按照术者要求进行主动活动患手以评价肌腱缝合质量及调节肌腱张力;术后未出现麻醉并发症,切口均一期愈合。31例均获随访,随访时间6~11个月,平均8个月,根据TAM系统评价标准:优19例,良7例,中5例,差0例,优良率为83.9%(26/31)。结论在手部肌腱功能重建手术中应用Wide-awake麻醉技术,术中及术后麻醉效果满意,远期患手功能恢复良好,且术中与患者进行沟通,可更加准确地判断肌腱重建的效果,术后未出现麻醉并发症,疗效确切且安全有效。
基金supported by the National Key Research and Development Program of China(2016YFE0200400)the Key R&D Program of Shaanxi Province(2017KW-ZD-12)+1 种基金the Postdoctoral Science Foundation of Shaanxi Provincethe Nature Science Foundation of Shaanxi Province
文摘Space-time coding radar has been recently proposed and investigated.It is a radar framework which can perform transmit beamforming at the receiver.However,the range resolution decreases when the number of the transmit element increases.A subarray-based space-time coding(sub-STC)radar is explored to alleviate the range resolution reduction.For the proposed radar configuration,an identical waveform is transmitted and it introduces a small time offset in different subarrays.The multidimensional ambiguity function of sub-STC radar is defined by considering resolutions in multiple domains including the range,Doppler,angle and probing direction.Analyses on properties of the multi-dimensional ambiguity function of the sub-STC radar with regard to the spatial coverage,resolution performance and low sidelobes are also given.Results reveal that the range resolution and low sidelobes performance are improved with the proposed approach.
文摘Bariatric and metabolic surgeries have gained extensive popularity and trust due to their documented efficacy and safety in managing not only obesity but also associated comorbidities such as diabetes mellitus, hypertension, dyslipidemia, sleep apnea, and joint pain. Traditionally, bariatric surgeries have been categorized into hypoabsorptive, restrictive, or hybrid approaches. However, these classifications inadequately reflect the complex anatomical and physiological alterations associated with modern surgical methodologies. This paper explores the evolution of metabolic surgeries, emphasizing the integration of physiological concepts into classic procedures to provide more tailored and effective treatment options for obesity and its comorbidities. Finally, the proposal for a new classification based on current metabolic concepts will facilitate communication among patients, doctors, and healthcare professionals. Additionally, it will enable a more didactic and standardized approach to data collection for conducting studies and publications.
