一种同步监测生理生化参数的导电水凝胶纸基设备

    公开(公告)号:WO2023015969A1

    公开(公告)日:2023-02-16

    申请号:PCT/CN2022/090856

    申请日:2022-05-05

    申请人: 浙江大学

    摘要: 一种同步监测生理生化参数的导电水凝胶纸基设备。利用多孔的PEDOT:PSS水凝胶在纸纤维上实现自组装,从而使其具有良好的导电性和良好的水润湿性,以实现高效的电子传输和物质扩散,保证其能够作为一个低阻抗的心电传感器和高灵敏的电化学传感器。同时,自发的毛细管流动效应使该滤纸可以作为纸质微流体的亲水通道,用于捕获和分析汗液。运动测试时,水凝胶纸贴片贴于皮肤表面采集心电数据和汗液中的目标物质浓度,从而实现无创监测。可以实现一个柔性的、低成本的、多功能的纸质分析装置,用于运动过程中生理和生化信号的同步监测。

    DEVICE AND METHOD FOR ACUTE BRAIN TUMOR MAPPING AND FOR CHRONIC THERAPEUTIC APPLICATIONS FOLLOWING A TUMOR RESECTION

    公开(公告)号:WO2022056465A1

    公开(公告)日:2022-03-17

    申请号:PCT/US2021/050273

    申请日:2021-09-14

    IPC分类号: A61B5/383 A61B5/00 A61B5/268

    摘要: Embodiments disclosed include systems and methods to stimulate and record electrical activity from a medium (e.g., neural tissue) with high precision, accuracy, and fidelity. The disclosed systems include an electrode array attached to a carrier facilitating the insertion of the array into biological tissue for mapping and characterization of tissue. Embodiments can be used for acute and/or chronic applications for recording activity, stimulating activity, and/or measuring impedance via spectroscopy. Embodiments can be used to characterize tissue near, surrounding, and/or outside of a brain tumor using a thin film electrode array. Embodiments can be used to characterize and/or manipulate (i) tumor cells, (ii) peri-tumor tissue, and/or (iii) non-tumor tissue, using electrophysiological recordings, impedance spectroscopy, and/or stimulation. Embodiments can help better define an extent of tissue to excise, characterize the tumor cells, and/or study tumor-nontumor signaling. Embodiments can guide surgical procedures, and improve effectiveness of rehabilitation, therapy, and/or tumor suppression.