Exoskeleton nursing robot is a typical human-machine co-drive system. To full play the subjective control and action orientation of human, it is necessary to comprehensively analyze exoskeleton wearer’s surface electromyography (EMG) in the process of moving patients, especially identifying the spatial distribution and internal relationship of the EMG information. Aiming at the location of electrodes and internal relation between EMG channels, the complex muscle system at the upper limb was abstracted as a muscle functional network. Firstly, the correlation characteristics were analyzed among EMG channels of the upper limb using the mutual information method, so that the muscle function network was established. Secondly, by calculating the characteristic index of network node, the features of muscle function network were analyzed for different movements. Finally, the node contraction method was applied to determine the key muscle group that reflected the intention of wearer’s movement, and the characteristics of muscle function network were analyzed in each stage of moving patients. Experimental results showed that the location of the myoelectric collection could be determined quickly and efficiently, and also various stages of the moving process could effectively be distinguished using the muscle functional network with the key muscle groups. This study provides new ideas and methods to decode the relationship between neural controls of upper limb and physical motion.
目的探讨十二指肠球后溃疡大出血急诊手术治疗的临床疗效及对术后再出血的预防措施。方法回顾性分析我院2001年1月至2011年8月期间18例术中确诊的十二指肠球后溃疡并大出血手术患者的临床资料。结果18例急诊手术，其中Nissen法12例，Graham法5例，Bancroft法1例。全部顺利成功完成手术，术后第1天再出血1例，经保守治疗治愈，均痊愈，无一例患者死亡。结论对于经保守治疗无效的上消化道大出血，急诊手术是挽救患者的关键，术后正确静脉使用奥美拉唑，维持胃内pH值gt;6.4是防止术后再出血的重要保障。
目的探讨大隐静脉腔内激光+膝下经皮点状贯穿缝扎治疗大隐静脉曲张的临床疗效。方法回顾性分析我院2004年1月至2010年12月期间389例大隐静脉曲张患者采用腔内激光+膝下经皮点状贯穿缝扎术治疗的临床资料。结果手术全部成功完成，平均手术时间50 min。住院4～8 d，平均住院6 d。本组患者均获随访，随访时间为 1～36个月（平均18个月），所有患者均无深静脉血栓、深静脉损伤等手术并发症发生，无一例复发。迂曲、成团曲张静脉消失,溃疡愈合，色素沉着减轻或消失，下肢肿胀沉重感、酸困感消失。术后1个月彩超复查大隐静脉主干均全程闭塞，无血流信号，曲张的静脉均消失，膝下小腿部皮肤无条索状硬结及瘢痕。结论大隐静脉腔内激光结合膝下经皮点状贯穿缝扎术，使微创治疗大隐静脉曲张更加完善。