公开(公告)号：WO2002071923A2

公开(公告)日：2002-09-19

申请号：PCT/US2002/007419

申请日：2002-03-12

申请人： ACTIVE SIGNAL TECHNOLOGIES

发明人： BRIDGER, Keith ,  COOKE, Arthur, V. ,  KUHN, Philip, M. ,  LUTIAN, Joseph, J. ,  PASSARO, Edward, J. ,  SEWELL, John, M. ,  WASKEY, Terence, V. ,  RUBIN, Gregg, R.

IPC分类号： A61B

CPC分类号： A61B7/001 ,  A61B5/026 ,  A61B5/7257

摘要： A non-invasive brain assessment monitor is disclosed. An embodiment of the monitor includes a head-mounted brain sensor which passively senses acoustic signals generated from pulsing blood flow through a patient's brain. A reference sensor may be mounted at another location on the patient's body to sense an arterial pulse, and the signals from the brain sensor and reference sensor may be compared. Another embodiment includes transmitters which generate acoustic signals in the brain which are also detected by the brain sensor. The brain assessment monitor may be used to detect conditions such as head trauma, stroke and hemmorhage.

摘要翻译： 公开了一种非侵入性脑评估监视器。 监视器的一个实施例包括头戴式脑传感器，其被动地感测通过患者的脑部脉动血流产生的声信号。 参考传感器可以安装在患者身体的另一位置以感测动脉脉冲，并且可以比较来自脑传感器和参考传感器的信号。 另一个实施例包括在脑中产生声学信号的发射器，其也由脑传感器检测。 大脑评估监测器可用于检测头部创伤，中风和血压等病症。

公开(公告)号：WO2008119014A2

公开(公告)日：2008-10-02

申请号：PCT/US2008/058424

申请日：2008-03-27

申请人： ACTIVE SIGNAL TECHNOLOGIES, INC. ,  ALFRED UNIVERSITY ,  BRIDGER, Keith ,  COOKE, Arthur V. ,  SCHULZE, Walter Arthur

发明人： BRIDGER, Keith ,  COOKE, Arthur V. ,  SCHULZE, Walter Arthur

IPC分类号： H01G4/12 ,  C04B35/462 ,  H01C7/02 ,  H01C7/04 ,  H01C7/115

CPC分类号： H01G4/1227 ,  C04B35/462 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3255 ,  C04B2235/3263 ,  C04B2235/3298 ,  C04B2235/768 ,  H01C7/025 ,  H01C7/045 ,  H01C7/115

摘要： A ceramic dielectric composition suitable for preparing capacitors for use in high-temperature service conditions is disclosed. The ceramic material and capacitors made from it exhibit unique and heretofore unrealizable properties including low variation in capacitance with voltage up to high fields, low variation in capacitance with temperature over a broad temperature range, retained high permittivity at temperatures up to 2000C and beyond, low loss, low field-induced strain and adequate capacitance to retain performance at very low service temperatures. The material is based on sodium bismuth titanate (NBT) with selected additions of substituents and dopants to broaden and flatten its dielectric response, lower loss, lower strain, lower voltage coefficient and increase resistivity.

摘要翻译： 公开了一种适用于制备用于高温使用条件的电容器的陶瓷电介质组合物。 由其制成的陶瓷材料和电容器具有独特且迄今未实现的性能，包括电容变化小到高电场的电容变化，宽温度范围内的电容变化小，在高达200℃及以下的温度下保持较高的介电常数 损耗，低场诱发应变和足够的电容，以在非常低的使用温度下保持性能。 该材料基于钛酸铋（NBT），其具有选择性添加的取代基和掺杂剂，以扩大和平坦化其介电响应，降低损耗，降低应变，降低电压系数和增加电阻率。

公开(公告)号：WO2002071923A3

公开(公告)日：2002-09-19

申请号：PCT/US2002/007419

申请日：2002-03-12

申请人： ACTIVE SIGNAL TECHNOLOGIES

发明人： BRIDGER, Keith ,  COOKE, Arthur, V. ,  KUHN, Philip, M. ,  LUTIAN, Joseph, J. ,  PASSARO, Edward, J. ,  SEWELL, John, M. ,  WASKEY, Terence, V. ,  RUBIN, Gregg, R.

IPC分类号： A61B5/00

摘要： A non-invasive brain assessment monitor (10) is disclosed. An embodiment of the monitor includes a head-mounted brain sensor (18) which passively senses acoustic signals generated from pulsing blood flow through a patient's brain. A reference sensor (25) may be mounted at another location on the patient's body to sense an arterial pulse, and the signals from the brain sensor (18) and reference sensor (25) may be compared. Another embodiment includes transmitters (14, 16) which generate acoustic signals in the brain which are also detected by the brain sensor (18) . The brain assessment monitor (10) may be used to detect conditions such as head trauma, stroke and hemmorhage.