应用锁相环IC设计心率显示报警电路

来用锁相环IC CD4046设计的心率显示报警电路,用于数台老式监护仪的改造中,获得成功.     

多元定位释药技术制备舒胸缓释胶囊的研究

目的采用多元定位释药技术制备舒胸缓释胶囊。方法将处方药材精制后制备成舒胸微丸,然后分别采用HPM C、Eudrag it L 30D-55、Eudrag it L 100-Eudrag it S100混合物(1∶5)制备成3种包衣微丸,并按一定比例混合装入胶囊中。结果HPM C包衣微丸在任何pH值条件下均可释药,Eudrag it L 30D-55包衣微丸在pH≥5.5时开始释药,Eudrag it L 100-Eudrag it S100(1∶5)包衣微丸在pH≥6.8时开始释药。由3种包衣微丸混合制备而成的缓释胶囊,在模拟人体胃肠道pH变化条件下,呈现出一种pH依赖型梯度缓释特征,而且处方中的主要成分三七总皂苷、红花黄色素、阿魏酸、川芎嗪的释放度差异无显著性。结论采用定位释药技术制备而成的舒胸缓释胶囊中理化性质不同的各成分在缓释的同时可以达到同步释放,遵循了中药制剂复方配伍的整体观和用药思想。     

“Locking in” a rare pathogen

Since its identification as a unique species in 1982, Escherichia hermannii has only recently been implicated as a pathogenic organism in human diseases. Literature search indicates removal of hemodialysis catheter as being essential to the success of treatment for bacteremia with this organism. However, having no alternative access for hemodialysis led to the attempt to salvage the catheter with the use of Antibiotic lock therapy. This case highlights Antibiotic lock therapy as an indication in Escherichia hermanii Catheter related Bloodstream infection.     

Effects of four treatment strategies for temporomandibular joint closed lock

A previous randomized controlled trial (RCT) by Schiffman et al. (2007)¹⁵ compared four treatments strategies for temporomandibular joint (TMJ) disc displacement without reduction with limited mouth opening (closed lock). In this parallel group RCT, 106 patients with magnetic resonance imaging (MRI)-confirmed TMJ closed lock were randomized between medical management, non-surgical rehabilitation, arthroscopic surgery, and arthroplasty. Surgical groups also received rehabilitation post-surgically. The current paper reassesses the effectiveness of these four treatment strategies using outcome measures recommended by the International Association of Oral and Maxillofacial Surgeons (IAOMS). Clinical assessments at baseline and at follow-up (3, 6, 12, 18, 24, and 60 months) included intensity and frequency of TMJ pain, mandibular range of motion, TMJ sounds, and impairment of chewing. TMJ MRIs were performed at baseline and 24 months, and TMJ tomograms at baseline, 24 and 60 months. Most IAOMS recommended outcome measures improved significantly over time (P ≤ 0.0003). There was no difference between treatment strategies relative to any treatment outcome at any follow-up (P ≥ 0.16). Patient self-assessment of treatment success correlated with their ability to eat, with pain-free opening ≥35 mm, and with reduced pain intensity. Given no difference between treatment strategies, non-surgical treatment should be employed for TMJ closed lock before considering surgery.     

胫骨远端前内侧入路双锁定加压钢板内固定治疗复杂Ｐｉｌｏｎ骨折

目的：探讨复杂Pilon骨折应用胫骨远端前内侧入路双锁定加压钢板内固定治疗效果。方法对2009年5月至2013年4月50例胫骨远端前内侧入路双锁定加压钢板内固定治疗的复杂Pilon骨折患者临床资料进行回顾性分析。结果50例患者手术时间为（55.3±7.7）min;术中出血量为（20.1±2.2）mL;术后随访时间为（16.3±2.3）个月;骨折愈合时间为（15.2±1.3）周。踝关节功能优良率94.0％。结论复杂Pilon骨折患者应用胫骨远端前内侧入路双锁定加压钢板内固定治疗效果显著,不良反应少。     

Syntheses and Antibacterial Activity of N-Acylated Ciprofloxacin Derivatives Based on the Trimethyl Lock

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