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全自动静脉穿刺器械改善了儿科体验

By LabMedica International staff writers
Posted on 07 Mar 2014
刚开发成功的一款新型医疗器械将为刺络医师和临床医师提供一项第一针就能准确采血的技术。

鉴于病人的特征千差万别,静脉入路的难易程度不一,做到上述一点尤为重要,准确度的提高将极大缩短手术时间,减少成本和病人的不适。

VascuLogic有限责任公司(Piscataway, NJ, USA)的一组科学家开发的世界上第一套自动静脉穿刺器械实现了静脉切开术的自动化,既方便了采血,又方便了静脉内导管的置放。这套VenousPro器械在便携的外壳内集成了近红外成像系统、计算机视觉软件和机械臂驱动的针。它工作时实时显示并标绘皮下血管的三维空间坐标,以便把针引导入指定的静脉。科研小组通过评估人体内的成像性能以及评估静脉切开术训练模型上套管插入的准确度进行了概念验证。

该器械在体外和体内确证研究(包括人体实验)都表现出95%以上的首针准确率,并胜过了用作对照的刺络医师的表现。科学家们深入调查了200名美国的刺络医师,发现静脉入路困难是小儿的严重问题,尤其是疼痛、持续时间以及因困难的和/或多次扎针引起患儿和家长的焦虑。此外,他们证实,因为该器械展现的效力和安全性,病人对它的接受度超过98%。

该器械有赖于静脉及其周边区域的高质量细节图像才能确保静脉穿刺的准确性。该器械利用超声和静脉的三维重建改进了成像技术,从而能够一针检测并执行手术。这样无需多次尝试就能成功完成静脉穿刺。

VascuLogic公司CEO Tim Maguire博士说:“这款自动器械设法缓解了静脉穿刺术给家长和患儿造成的焦虑,使我们深受鼓舞。对必须忍受困难的或多次扎针的患儿及其家长来说,害怕去看医生是一个非常现实的问题。因此,当患儿害怕时或需要做持续的静脉入路时,我们能给他们的任何慰藉都善莫大焉。”该研究的论文发表于2013年11月8日的《技术》(TECHNOLOGY)杂志。

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