一种急救用无导联线心电图机的设计与应用

A design and application of electrocardiograph without lead wire for first-aid

心电图机是用于记录心脏活动时心肌激动产生的生物电信号,是临床诊断和急救时常用的医疗电子仪器,但现有技术中心电图机采用导联线的连接方式,容易在移动中发生导联线交织缠绕、拖拽牵拉的情况,既会使导联线折断、磨损,又会因整理导联线延误救治时间。另外,传统心电图机电池容量小,需要频繁充电,影响了仪器使用及救治速度,而且原有吸附胸导联电极与皮肤接触面小,患者舒适度低且易脱落。为解决上述问题,天津市第一中心医院医护人员设计了一种急救用无导联线心电图机,并获得了国家实用新型专利(专利号:ZL 201922267837.3)。该心电图机采用无线连接电极的方法,避免了导联线缠绕,并增加了携带电源,延长了续航时间,同时改进了胸导联接触电极的性能,增大了接触面,使医护人员的医疗操作流程得到优化,更有利于临床急救和常规检查,具有使用简便、携带方便、安全性强的优点。

The electrocardiograph is used to record the bioelectric signals generated by the activation of myocardium when the heart is active.It is a commonly used medical electronic instrument for clinical diagnosis and first-aid.However,electrocardiograph adopts a lead wire connection method in existing technology,which is prone to interweaving of wires during movement.It will not only break and wear the lead wire,but also delay the treatment time due to the cleaning of the lead wire.In addition,because the battery capacity is small,it needs to be charged frequently after use,which affects the speed of the instrument use and first-aid.Moreover,the original adsorbed chest lead electrode has a small contact surface with the skin,leading to less comfort and easy to fall off.In order to solve the above problems,an electrocardiograph without lead wire for first-aid was designed by medical staff of Tianjin First Central Hospital,and the National Utility Model Patent of China was obtained(Patent No.:ZL 201922267837.3).The electrocardiograph adopts the method of wirelessly connecting electrodes,avoids entanglement of lead wire,and increases the portable power source,which prolongs the battery endurance time,improves the contact electrode performance of chest lead and increases the contact surface,the above improvements optimize the medical process operated by medical staff,which is more conducive to clinical first-aid and routine examination,and has the advantages of easy to use,easy to carry and strong safety.