Department of Anaesthesiology, Pharmacology, and Therapeutics, University of British Columbia, British Columbia Children's Hospital, Vancouver, Canada.
Anaesthesia. 2012 Sep;67(9):957-67. doi: 10.1111/j.1365-2044.2012.07196.x.
To increase the use of pulse oximetry by capitalise on the wide availability of mobile phones, we have designed, developed and evaluated a prototype pulse oximeter interfaced to a mobile phone. Usability of this Phone Oximeter was tested as part of a rapid prototyping process. Phase 1 of the study (20 subjects) was performed in Canada. Users performed 23 tasks, while thinking aloud. Time for completion of tasks and analysis of user response to a mobile phone usability questionnaire were used to evaluate usability. Five interface improvements were made to the prototype before evaluation in Phase 2 (15 subjects) in Uganda. The lack of previous pulse oximetry experience and mobile phone use increased median (IQR [range]) time taken to perform tasks from 219 (160-247 [118-274]) s in Phase 1 to 228 (151-501 [111-2661]) s in Phase 2. User feedback was positive and overall usability high (Phase 1--82%, Phase 2--78%).
为了提高脉搏血氧仪的使用率，充分利用手机的广泛普及性，我们设计、开发并评估了一种与手机接口的脉搏血氧仪原型。该 Phone Oximeter 的可用性已作为快速原型制作过程的一部分进行了测试。该研究的第 1 阶段（20 名受试者）在加拿大进行。用户在进行思考的同时执行了 23 项任务。完成任务的时间和用户对手机可用性问卷的反应分析用于评估可用性。在乌干达的第 2 阶段（15 名受试者）评估之前，对原型进行了 5 项界面改进。由于缺乏先前的脉搏血氧仪使用经验和手机使用经验，执行任务的中位（IQR [范围]）时间从第 1 阶段的 219（160-247 [118-274]）秒增加到第 2 阶段的 228（151-501 [111-2661]）秒。用户反馈积极，整体可用性高（第 1 阶段-82%，第 2 阶段-78%）。
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