脉搏血氧饱和度测量原理及常见血氧探头

概述脉搏血氧饱和度的定义及测量原理和探头产品实现方法 ,并提供了几种常见品牌血氧探头传感器与接头插针的电气连接图,供医学工程人员参考.     

血氧定量计测定患病新生儿血氧含量的评价

旧金山消息:一种新的无创性观测定血氧含量的仪器已在手术室和加强护理病房普遍使用,特别用于产房尤其是在婴儿出生后几分钟。巴尔的摩约翰斯·霍普金斯医学院的Mi-     

激光光纤血氧测试仪

血氧是反映心肺功能和组织代谢状况的重要参数。血氧测试仪可应用于临床、卫生医学、基础医学及有关的科学研究。测定在一定时间范围内氧量方法,目前国内外均采用连续冲洗式的隔膜法。峰值电压在90％时需60秒左右,不能做到稳定、连续、快速反映实时值。特别采样过程中,抽血程序不可能保证存在漏氧,且价格昂贵,丹麦进口之ABL型仪器需要数万美金才能购置。本仪器成本费只需人民币3500元,如果批量生产,价格还可下降,可斟对我国国情广泛推广。由于采用     

血氧分压测定用于心脏导管检查时的血氧含量分析

血氧含量及血氧饱和度测定是心脏导管检查时的主要项目之一。过去多用舒劳氏微量血氧含量分析器或反射式光电血氧计来测定血氧含量及血氧饱和度。舒劳氏方法由于费时较多后来已被反射式光电血氧计所代替。血气分析仪近年在国内许多单位正在普及。血气分析仪系用氧电极直     

指夹式血氧仪测量血氧饱和度纳入入院流程的意义

目的探讨指夹式测量血氧饱和度纳入入院流程的作用及意义。方法选择2016年1~7月我院内二科共收住患者848例,使用指夹式血氧仪常规测量患者血氧饱和度。结果传统评估低氧血症准确率82.55%,使用指夹式血氧仪评估低氧血症准确率96.93%,指夹式血氧仪准确率显著高于传统评估方法(P0.05);报警处理时间对比方面,应用指夹式血氧仪的处理时间显著少于传统缺氧评估(P0.05);误报警发生情况方面,应用指夹式血氧仪的误报警率以及患者不良事件例数均显著少于传统缺氧评估(P0.05)。结论指夹式测量血氧饱和度便于及时发现患者是否存在低氧血症、组织灌注不足等异常情况,对早期筛选血氧饱和度低下的患者具有较高的灵敏度,是一项安全、非侵入性、费用低、可行且合理的检测技术,对疾病的早发现、早治疗起重要的作用,值得临床慢病科室推广使用。     

混合静脉血氧饱和度的监测

早在50年代就有报道采取混合静脉血氧饱和度来估计心输出量(CO),70年代有光导纤维导管氧饱和度仪(Fiberoptic Catheter Oximeter)问世,近年又加以改进。现将SvO_(2)监测中有关的问题作一综述介绍。     

经皮血氧分压监测仪的研制

经皮血氧分压监测仪的研制喻国亮，阎述池，霍纪文（基础医学部生物医学工程教研室）关键词监测仪，经皮血氧分压血氧分压的变化是临床诊治和监护过程中不可少的出量项目。现在常用的动脉血管取血法是损伤性的检查方法，不便于连续观察。经皮测定血氧分压是近十年发展起来...     

高原294例股动脉血氧分析

本文报告了3800公尺左右地区的居住者股动脉血氧分析情况,其测定结果与平原区正常值及高原居住者各组间进行了比较,从294例的分组统计可以看出、它们之间的血氧含量、结合量及饱和度是不同的,并有一定的规律性,对其不同的结果,进行了讨论,从而说明动脉血氧的分析,对于研究高原居住者是否适应是有很大意义的。     

A patient with headache, right upper extremity and right hemithorax hypothermalgesia

We present a case of partial Wallenberg syndrome also called partial lateral medullary syndrome, a hemorrhagic or ischemic stroke of the area fed by the posterior inferior cerebellar artery and the clinical manifestation depends on the extension of the lesion: dorsal-ventral, medial-lateral and rostrocaudal. Five types have been described. Our patient had headache, hoarseness, right upper extremity, right hemithorax and right upper gluteal hypothermalgesia implicating the involvement of the cervical, the thoracic and part of lumbar fibers of the left lateral spinothalamic tract and the ambiguous nucleus; an entity not described before. The imaging done to our patient disclosed the dissection of the left vertebral artery. He was treated with anticoagulation with gradual improvement in his symptoms.     

Uterus didelphys with obstructed right hemivagina, ipsilateral renal agenesis and right pyocolpos: a case report

Uterus didelphys with obstructed hemivagina and ipsilateral renal agenesis (OHVIRA Syndrome) is a rare congenital anomaly of the female genital tract. Uterus didelphys occurs when the midline fusion of the mullerian ducts is arrested, either completely or incompletely. Women with didelphic uterus may be asymptomatic and unaware of having a double uterus. They may present with complaints of dysmenorrhoea and dyspareunia. A 25 year old woman attending the infertility clinic at Nizwa regional referral hospital presented with history of dysmenorrhoea and foul vaginal discharge with right cystic pelvic mass. She was diagnosed as a case of double uterus with obstructed right hemivagina and right pyocolpos with ipsilateral renal agenesis after routine ultrasonography in the clinic followed by MRI. Excision of the right vaginal septum with drainage of 200 ml of purulent discharge was performed. She was relieved of her symptoms and conceived promptly after the surgical excision of the partial vaginal septum.