The Doppler guide wire: clinical applications in neuroendovascular treatment

The application of Doppler-tipped guide wires to measure blood flow velocity in coronary and peripheral arteries has been described previously as a valuable means of functional assessment in interventional cardiological procedures. In animal studies intravascular Doppler has been used in the cerebrovascular system, and this appears to be an important field of application for this new technique. We used intravascular haemodynamic monitoring by the Doppler guide wire during neuroendovascular procedures in patients with different cerebrovascular diseases and evaluated the clinical feasibility of the method. We found it a safe technique which complements morphological angiographic information with valuable functional data. Further studies may be expected to demonstrate the relation of flow parameters to clinical outcome. Received: 16 January 1996 Accepted: 30 January 1996     

膝前框形钢丝内固定治疗髌骨骨折

目的　总结采用钢丝环扎 +膝前方框形张力带钢丝内固定法治疗髌骨骨折的经验和临床效果。方法　对 3 5例髌骨骨折应用此方法治疗 ,其中男性 2 4例 ,女性 11例 ,3 0例获得 3～ 2 4个月随访。结果　优 19例 ,良 10例 ,可1例 ,优良率 96 7%。术后未出现骨折再移位 ,无伤口感染。愈合时间 6～ 12周。结论　该方法符合生物力学原理 ,操作简便 ,适应证广 ,能早期关节活动 ,是治疗髌骨骨折的理想方法之一。     

CPM在髌骨骨折张力带内固定术后的应用

目的 探讨CPM在髌骨骨折改良张力带内固定术后的应用效果。方法 早期应用CPM治疗髌骨骨折行改良张力带内固定术后病人156例。结果 所有病例均得到随访，临床疗效优良率为98％。结论 在髌骨骨折行改良张力带内固定术后早期应用CMP，可显著利于膝关节功能恢复，提高治愈率。     

Dual microcatheter and guidewire snare technique for retrieval of intravascular foreign body: technical note

A transjugular snare technique was used to retrieve a stretched, residual mechanical detachable coil which extended from the cavernous sinus to the femoral vein, obliterating the transpetrosal route for further embolisation. The coil was snared by a microguidewire. Our new technique is described in this paper. Received: 19 April 1995 Accepted: 31 July 1995     

Fixation of Kirschner wires: a comparison between hammering and drilling k-wires into ribs of pigs

Kirschner wire (K-wire) fixation is a well-accepted method for stabilization of fractures. However, the rotary drill traditionally used for insertion leads to a considerable amount of complications (33%). Another method for insertion was tested which might possibly reduce these complications—hammering. Forty-four K-wires were inserted into the ribs of pigs using a drilling and a hammering technique. Peak extraction force, peak torque, and insertion time were measured. The mean peak extraction forces for drilling and hammering were 57.4 and 129.0 N, respectively. The mean peak torque for drilling and hammering were 2.4 and 5.7e−02 Nm, respectively. Using the drilling technique, it took 73.6 s to insert the K-wire compared with 18.4 s for hammering. At the exit site, there were splinters of bone in 18 of the 22 hammered K-wires and in 2 of the 22 drilled K-wires. This study showed that hammering K-wires into ribs of pigs gives better initial fixation and results in a shorter insertion time.D.B. van Egmond is deceased.     

种植牙手术的导向模板定向法临床研究

本文介绍了用于人工牙根种植手术的一种导向模板定向法。该导向模板由圆柱形金属定向杆、导向钛管、负压成型的塑料牙列套及自凝塑料增强基托组成。临床应用35例.效果满意。     

颈痛患者手法治疗：最佳实践指南解读

颈痛在临床上常由颈椎退行性疾病引起,易对患者颈部功能及生活质量造成不良影响。为提供最佳、有效的诊断及治疗方案,2019年美国国家健康科学大学发表了《最佳实践建议：颈痛患者的整脊治疗管理》。课题组在充分研读最新版指南诊治内容的基础上,从诊断、治疗、注意事项3个方面进行解读,同时检索相关文献,纵向对比多个高质量颈痛相关指南,从生物力学及神经生物学方面分析手法治疗颈痛的科学性,并结合中国诊疗现状分析认为其推荐的手法治疗及诊疗流程在中国具有可行性,基于此认为将国内外现有的循证医学证据结合中国传统医学能指导临床实践。     

三棱滑切固定矫治器--结构设计与应用原理

目的开发设计一种新型的固定矫治器：三棱滑切固定矫治器，用于牙颌畸形的正畸治疗，对其结构设计和应用原理进行探讨分析。方法三棱滑切固定矫治器的结构，以三棱形弓丝和具有三角槽沟的托槽为主体，由它控制矫治牙在各个方向的移动而发挥矫治作用。结果对该矫治器的结构做出定性设计，分析探讨其调控牙齿正畸移动的方式主要为通过三棱弓丝的一个刃状边棱与托槽三角沟槽的一个边面相切，借助于弓丝本身的弹性形变力和弓丝的外加引导力而对矫治牙齿施以滑动和切入机制的矫治力。结论三棱形弓丝和与之匹配的三角槽沟托槽是这类矫治器的主要结构特征；角——槽切合锁入式结构设计在确保弓丝与槽沟完全吻合的条件下实现了弓丝入槽——出槽顺畅自由，易于临床使用和精确调控牙位的目的；“棱面相切——加力引导切入——渐进式加力”到牙齿，更加符合持续、轻力的现代口腔正畸施力原则．     

一种低成本的新型网络MicroLAN

简述了新型的智能网络MicrolLAN的基本工作原理,结合应用实例介绍了MicroLAN网络的关键器件耦合器,最后讨论了MicroLAN的一线制器件及其应用。