公开(公告)号：US4905706A

公开(公告)日：1990-03-06

申请号：US183830

申请日：1988-04-20

申请人： Bob M. Duff ,  Cynthia S. Gibson ,  Dean C. Winter ,  H. Herbert Peel

发明人： Bob M. Duff ,  Cynthia S. Gibson ,  Dean C. Winter ,  H. Herbert Peel

IPC分类号： A61B5/02 ,  A61B5/0402 ,  A61B5/0436 ,  A61B7/04

CPC分类号： A61B7/04 ,  A61B5/0436

摘要： A method and apparatus for detection of coronary artery disease. The apparatus records and analyzes that portion of the phonocardiogram lying between about 100 to 600 Hz. An electrocardiogram is also recorded and examined in order to pinpoint the diastolic window of PCG data. This window of data is subject to autocorrelation analysis and spectral analysis, resulting in a partial correlation coefficient index and a power density index. A linear combination of these two indices results in a Cardiac Screening Index which is indicative of the presence or absence of coronary artery disease.

摘要翻译： 用于检测冠状动脉疾病的方法和装置。 该装置记录和分析位于约100至600Hz之间的部分心律图。 还记录和检查心电图，以便确定PCG数据的舒张期窗口。 该数据窗口进行自相关分析和光谱分析，得到部分相关系数指数和功率密度指数。 这两个指标的线性组合导致心脏筛查指数，其指示冠状动脉疾病的存在或不存在。

公开(公告)号：US4800892A

公开(公告)日：1989-01-31

申请号：US888856

申请日：1986-07-21

申请人： William D. Perry ,  Donald H. Heihn ,  H. Herbert Peel

发明人： William D. Perry ,  Donald H. Heihn ,  H. Herbert Peel

IPC分类号： A61B5/0235 ,  A61B5/02

CPC分类号： A61B5/0235 ,  Y10S2/90 ,  Y10T137/36

摘要： An inflation system for providing rapid, linear inflation of a container, such as an occlusion cuff used in connection with a blood pressure monitoring system. The invention system provides an automatic fast-fill of the cuff to a predetermined pressure level, followed by a smooth, linear pressurization profile which is independent of the volume of the cuff. An efficient electronic actuation system allows the system to inflate the cuff many times using the power supplied by a low power battery. A pressure relief system is provided to automatically terminate operation of the inflation system once systolic pressure has been detected or if the pressure in the system rises above a predetermined level. The system is extremely lightweight and compact, thus allowing a patient to carry the system on his person without undue fatigue.

摘要翻译： 用于提供容器的快速线性膨胀的通货膨胀系统，例如与血压监测系统结合使用的闭塞套。 本发明的系统提供了将袖带自动快速填充到预定的压力水平，随后是与袖带的体积无关的光滑的线性加压曲线。 有效的电子致动系统允许系统使用由低功率电池提供的电力多次充气袖带。 提供压力释放系统，一旦检测到收缩压，或者如果系统中的压力升高到预定水平以上，则自动终止充气系统的操作。 该系统非常轻便和紧凑，从而允许患者将系统携带在他身上而不会过度疲劳。

公开(公告)号：US4803996A

公开(公告)日：1989-02-14

申请号：US101812

申请日：1987-09-28

申请人： H. Herbert Peel ,  Merle E. Converse ,  William H. McGinnis ,  Donald J. Shirley ,  John P. Prudhomme

发明人： H. Herbert Peel ,  Merle E. Converse ,  William H. McGinnis ,  Donald J. Shirley ,  John P. Prudhomme

IPC分类号： A61B5/0428 ,  A61B5/0436 ,  A61B7/04 ,  A61B5/04

CPC分类号： A61B7/04 ,  A61B5/04282 ,  A61B5/0436

摘要： A cardiovascular monitor having improved safety features and data transmission ability. Sensing devices placed on a patient's body, such as electrocardiogram electrodes and phonocardiogram microphones, are electrically isolated from the data recorder and AC powerline, thereby protecting the patient from dangerously high voltages existing in the recorder and the external power source. Isolation amplifiers are employed in the signal conditioning circuitry at the front end of the recorder. Special isolation transformers are also used to prevent ground loop currents between the signal conditioner and the recorder thus minimizing noise due to powerline leakage. Similarly, isolation amplifiers are used during the playback mode between the recorder and a data processor to avoid ground loop currents between the recorder and the processor.

摘要翻译： 心血管监护仪具有改进的安全特征和数据传输能力。 放置在患者身上的感测装置，例如心电图电极和心音图麦克风，与数据记录器和AC电力线电隔离，从而保护患者免受存在于记录器和外部电源中的危险的高电压。 隔离放大器用于记录仪前端的信号调理电路。 特殊的隔离变压器也用于防止信号调节器和录音机之间的接地回路电流，从而将由于电力线泄漏引起的噪音降至最低。 类似地，在记录器和数据处理器之间的回放模式期间使用隔离放大器以避免记录器和处理器之间的接地回路电流。