CN111544668A - 一种基于物联网技术的多参量甲状腺术后引流信息主动监测*** - Google Patents
一种基于物联网技术的多参量甲状腺术后引流信息主动监测*** Download PDFInfo
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Abstract
本发明涉及医疗监测***技术领域,涉及一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,包括:引流管、无线压力检测***、引流液颜色智能识别***、多参量融合采集***、用以整合上述采集到的压力值、颜色、流量信号,并发将其送至手机客户端及电脑云端的整合***;以及警报***。本发明从甲状腺术后智能引流监测***的临床应用出发,通过肝素涂层技术、无线压力传感技术、流量计***、颜色识别传感技术及物联网技术,探索一整套智能的监测预警***,来预防各种危险并发症的发生及加速患者康复早日拔除引流管,增加医疗的安全性,可辅助快速康复及日间手术的进行。
Description
技术领域
本发明涉及医疗监测***技术领域,具体说,涉及一种基于物联网技术的多参量甲状腺术后引流信息主动监测***。
背景技术
近年来,甲状腺疾病的发病率逐年上升,接受甲状腺手术的病人数量不断增多,各省市医院相继成立了头颈专业甚至甲状腺亚专业科室或中心。随着外科技术发展、新器械的普及应用和专业化进程日益成熟,甲状腺手术已基本达到微创化、功能化和无血化,但各地区和医疗单位之间技术水平存在差异。甲状腺手术之后最常见的两大危急并发症就是出血和呼吸困难。目前随着神经监测仪的普及和外科手术技巧的改进,喉返神经损伤的概率大大降低。而另一并发症,出血问题仍然还是比较普遍,尤其在解剖变异,凝血功能障碍等不确定因素的影响下,即使经验最丰富的外科医师也不能完全避免,加之颈部腔隙的封闭性和甲状腺解剖结构的特殊性,甲状腺术后出血如不及时处理,短期少量出血(100ml)就会产生气管压迫症状,300~500ml 足以引起呼吸困难、喉头水肿和窒息死亡的严重后果,传统的引流管仅仅是起引流作用,目的就是将手术区域的出血和渗液引出颈部,而一旦引流液性状发生变化,往往要依靠没有医学常识的陪护的家属或护工来第一时间发现,再依靠医生护士的触诊和肉眼观感来判断再次手术的时机,无法做到量化的评估标准以及准确的预警。尤其在夜间,往往无法在第一时间发现,夜间医护人员数量不足,容易导致更严重的后果。而且至今为止没有一个可靠的方法可以完全避免甲状腺术后出血,特别是在甲状腺全切除术、合并颈***清扫、再次手术等情况下,术后出血仍屡见不鲜。因此,甲状腺术后智能监测***的研发具有迫切性和非常重大的现实意义。
目前的术后医疗监测模式的缺点:
1.无法建立出血预警机制,靠医疗或非医疗人员的肉眼观测为主,大都产生临床症状后才开始介入。
2. 拔管时间无法个体化,拔管指证无法统一化同质化,目前临床常用的拔管指证是24小时引流管少于10ml-20ml,也有医生术后2-5天不管引流样的量即拔除引流管。大部分出院患者需要术后3-7天才能达到此要求,在引流量更大时拔管是否安全可行,目前无***化数据支持。
3. 负压引流术在外科手术中普遍使用,其原理是在负压源的作用下将伤口渗出的体液收集到引流容器中,在此过程中只对负压源的压力进行控制,无法对引流液的流速、流量进行测量和控制,对于在使用过程中由于各种原因造成的管路阻塞等影响引流效果的故障无法及时发现和处理,影响患者术后的正常恢复,甚至引起并发症等严重后果。
总而言之,在手术以后,不论是住院期间还是出院以后,我们均无法对患者的颈部情况和引流情况做一个主动的监测,而是在某个时间节点进行人工的统计和监测,一旦发生严重并发症,往往无法进行提前预警及及时处理,后果不堪设想。如何利用现有的无线通讯技术和物联网技术、药物涂层技术进行多参量的融合预警,为医护更好的监控患者术后的恢复情况,是我们一直在思考的问题。
目前,也有一些医疗上的监测***,例如授权公告号为CN106215252B的中国发明专利于2018年10月2日公开的一种甲乳外科术后专用引流液快速监测***,但是不适用于甲状腺术后监测。
发明内容
本发明旨在提出一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,为甲状腺术后患者的高危并发症提供预警,让医护人员可以24小时的远距离监控患者的颈部情况及生命体征,增加医疗的安全性,可辅助快速康复及日间手术的进行,并进一步为其他智能引流管的进一步研制提供借鉴经验及研究基础。
为了达到上述目的,本发明采用如下的技术方案,一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,包括:
用于从甲状腺引流出液体的引流管;
设置于引流管头端置于甲状腺床且用于监测甲状腺床压力的无线压力检测***:
用于采集上述引流管内流体的颜色并且分析引流液性状的引流液颜色智能识别***;
用于分析统计所述引流管每日引流量、累计引流量及流速的多参量融合采集***;
用以整合上述采集到的压力值、颜色、流量信号,并发将其送至手机客户端及电脑云端的整合***;
以及警报***;
所述引流液颜色智能识别***、多参量融合采集***设置在所述引流管的相对位置;
所述警报***、无线压力检测***、引流液颜色智能识别***、多参量融合采集***与所述整合***连接。
作为优选,无线压力检测***由如下四部分组成:植入式无线血压传感器、能量发射线圈、数据读取器和数据处理平台,其工作原理如下:无线血压传感器通过固定于引流管头端置于颈部甲状腺床;数据读取器驱动能量发射线圈工作,能量发射线圈开始无线传输能量,无线血压传感器立即开始工作;无线血压传感器把检测到的腔内压无线传输到体外,由数据读取器接收并发送至计算机上。
植入式无线血压传感器通过固定于引流管头端置于颈部甲状腺床;数据读取器驱动能量发射线圈工作,能量发射线圈开始无线传输能量,无线血压传感器立即开始工作;无线血压传感器把检测到的腔内压无线传输到体外,由数据读取器接收并发送至计算机上。
作为优选,数据读取器由接收天线、射频通讯模块、专用微处理芯片和数据接口组成。通过无线通讯方式从体内的无线传感器实时接收数据,并经数据接口将数据传送至数据处理站。通过数据处理平台和处理软件对腔内压力数据进行存储、分析和显示。
作为优选,所述警报***包括床边警报***-病房医护警报***-主管医护手机智能警报***。
作为优选,在所述引流管表面设置肝素涂层。采用特定方法将肝素固定附着到生物材料表面,从而改善和提高生物材料表面的生物相容性和抗凝活性,减轻术后的全身炎症反应。我们将此技术应用于引流管内膜上,减少血凝块形成的概率,最大可能的保持引流管引流通畅,以减少引流管堵塞引起的颈部气道压迫及局部积血积液。
更有选地,在引流管的壁上开位于其下部的设竖直凹槽,以代替现有的引流管侧孔作为引流入口,不容易堵塞。
作为优选,所述引流管表面设置肝素涂层,按照如下方法形成肝素涂层:取聚乙烯亚胺水溶液,加入1,1,2三氟三氯乙烷、无水乙醇,制备成聚乙烯亚胺乙醇溶液,将引流管浸泡入聚乙烯亚胺乙醇溶液,水浴30分钟后倒出剩余溶液,真空常温下干燥;再将肝素水溶液倒入管道中,可见管道表面有薄层白色沉淀析出,37℃水浴30min后倒出剩余溶液,真空常温下干燥后备用。
通过实施上述技术方案,本发明从甲状腺术后智能引流监测***的临床应用出发,通过肝素涂层技术、无线压力传感技术、流量计***、颜色识别传感技术及物联网技术,探索一整套智能的监测预警***,来预防各种危险并发症的发生及加速患者康复早日拔除引流管,增加医疗的安全性,可辅助快速康复及日间手术的进行。
附图说明
附图1为甲状腺智能监测***的组成;
附图2为无线血压传感器内部解构图;
附图3a为流量计原理图及电路结构图;
附图3b为流量计电路结构图;
附图4为附图3b中的信号滤波、A/D 转换图;
附图5为附图3b中的励磁驱动电路;
附图6为甲状腺智能监测***手机APP部分界面。
具体实施方式
下面通过具体实施例对本发明的技术方案作进一步详细说明。
需要说明的是,本具体实施方式仅仅是对本发明的解释,并不是对本发明的限制。本领域技术人员在阅读了本发明的说明书之后所做的任何改变,只要在权利要求书的范围内,都将受到专利法的保护。
一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,如附图1所示,包括:
用于从甲状腺引流出液体的引流管;
设置于引流管头端置于甲状腺床且用于监测甲状腺床压力的无线压力检测***:
用于采集上述引流管内流体的颜色并且分析引流液性状的引流液颜色智能识别***;
用于分析统计所述引流管每日引流量、累计引流量及流速的多参量融合采集***;
用以整合上述采集到的压力值、颜色、流量信号,并发将其送至手机客户端及电脑云端的整合***;
以及警报***;
所述引流液颜色智能识别***、多参量融合采集***设置在所述引流管的相对位置,所在位置以能检测到引流管内的引流液信息为准;
所述警报***、无线压力检测***、引流液颜色智能识别***、多参量融合采集***与所述整合***连接。
医学技术的发展带动了生物医学材料的研究和应用,如体外循环技术、透析技术及血滤技术的发展急需相关生物医学材料的开发和应用。生物相容性是生物医学材料应用面临的主要问题,与血液接触的生物材料会激发宿主防御机制,特别是血液稳定机制,从而级联引起血栓和栓塞的发生,危及患者生命。改善生物医学材料的生物相容性有两种思路:其一是研发一种惰性表面材料可以避免激发宿主防御反应;其二是研发活性生物表面材料,自然控制宿主防御反应。肝素涂层技术正是基于第二种思路,采用特定方法将肝素固定附着到生物材料表面,从而改善和提高生物材料表面的生物相容性和抗凝活性,减轻术后的全身炎症反应。我们将此技术应用于引流管内膜上,减少血凝块形成的概率,最大可能的保持引流管引流通畅,以减少引流管堵塞引起的颈部气道压迫及局部积血积液。
引流管本身的结构也进行局部改进,在引流管的壁上开位于其下部的设竖直凹槽,以代替现有的引流管侧孔作为引流入口,不容易堵塞。
用H2SO4·K2MnO4溶液对管道进行酸化预处理,在材料表面形成羧基(-COOH),与强阳性聚乙烯亚胺的氨基(-NH2)结合在材料表面构建大量以氨基为主的“空间臂”,增加结合位点,然后与重氮化处理后肝素末端的醛基(-CHO)结合,制成共价键结合涂层材料。具体步骤为取质量分数为40%的聚乙烯亚胺水溶液12.5ml,加入1,1,2三氟三氯乙烷2.5ml,无水乙醇85ml,制备成5%聚乙烯亚胺乙醇溶液。将凹槽型引流管(世创公司生产)道浸泡入聚乙烯亚胺乙醇溶液,37℃水浴30分钟后倒出剩余溶液,反复3次,真空常温下干燥。再将质量分数1%肝素水溶液(pH=1)倒入管道中,可见管道表面有薄层白色沉淀析出,37℃水浴30min后倒出剩余溶液,真空常温下干燥后备用。
无线压力检测***,目前较为成熟的颅内压监测和腹主动脉瘤腔内测压***。本实施例中采用了后者。因为后者的血液内环境和甲状腺床的内环境更像,且我们可以采用引流管作为载体,置入甲状腺床内。压力检测***由如下四部分组成:植入式无线血压传感器、能量发射线圈、数据读取器和数据处理平台,其工作原理如下:无线血压传感器通过固定于引流管头端置于颈部甲状腺床;数据读取器驱动能量发射线圈工作,能量发射线圈开始无线传输能量,无线血压传感器立即开始工作;无线血压传感器把检测到的腔内压无线传输到体外,由数据读取器接收并发送至计算机上。数据读取器由接收天线、射频通讯模块、专用微处理芯片和数据接口组成。通过无线通讯方式从体内的无线传感器实时接收数据,并经数据接口将数据传送至数据处理站。通过数据处理平台和处理软件对腔内压力数据进行存储、分析和显示,如附图2所示。
我们通过引流管将甲状腺引流液导出体外,可在体外管腔内对液体颜色进行识别。识别的机理:采用美国TAOS公司生产的颜色传感器TCS320,它是一种自带数字兼容接口的RGB彩色光一频率转换器,可将彩色光中三原色分量红(Red)、绿(Green),蘸(Blue)的光强信号转换为频率与之对应的方波脉冲输出.光强与脉冲频率相关。将采集到的脉冲频率转换为彩色光所对应的三原色分量,经微控制器处理提取特征参数即可实现液体颜色监测。
多参量融合采集***采用的引流量流量计,采用低频方波励磁方式和单片机控制***,流量计原理图及电路结构图如附图3a、3b所示,其中的信号滤波、A/D 转换图及励磁驱动电路分别如附图4、5所示。
Claims (7)
1.一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,包括:
用于从甲状腺引流出液体的引流管;
设置于引流管头端置于甲状腺床且用于监测甲状腺床压力的无线压力检测***:
用于采集上述引流管内流体的颜色并且分析引流液性状的引流液颜色智能识别***;
用于分析统计所述引流管每日引流量、累计引流量及流速的多参量融合采集***;
用以整合上述采集到的压力值、颜色、流量信号,并发将其送至手机客户端及电脑云端的整合***;
以及警报***;
所述引流液颜色智能识别***、多参量融合采集***设置在所述引流管的相对位置;
所述警报***、无线压力检测***、引流液颜色智能识别***、多参量融合采集***与所述整合***连接。
2.根据权利要求1所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,无线压力检测***包括如下四部分:植入式无线血压传感器、能量发射线圈和数据读取器和数据处理平台。
3.根据权利要求2所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,数据读取器由接收天线、射频通讯模块、专用微处理芯片和数据接口组成。
4.根据权利要求1所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,所述警报***包括床边警报***、病房医护警报***、主管医护手机智能警报***中的一种或多种。
5.根据权利要求1所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,在引流管的壁上开位于其下部的设竖直凹槽。
6.根据权利要求5所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,在所述引流管表面设置肝素涂层。
7.根据权利要求6所述一种基于物联网技术的多参量甲状腺术后引流信息主动监测***,其特征在于,所述引流管表面设置肝素涂层,所述肝素图层按如下方法形成:取聚乙烯亚胺水溶液,加入1,1,2三氟三氯乙烷、无水乙醇,制备成聚乙烯亚胺乙醇溶液,将引流管浸泡入聚乙烯亚胺乙醇溶液,水浴后倒出剩余溶液,真空常温下干燥;再将肝素水溶液倒入管道中,可见管道表面有薄层白色沉淀析出,水浴后倒出剩余溶液,真空常温下干燥后备用。
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