Control for CPAP apparatus
    11.
    发明授权
    Control for CPAP apparatus 失效
    CPAP设备的控制

    公开(公告)号:US5551419A

    公开(公告)日:1996-09-03

    申请号:US356471

    申请日:1994-12-15

    Abstract: The invention relates to continuous positive airway pressure (CPAP) respiratory therapy apparatus for treatment of apnea, hypopnea and other sleep disorders, and particularly to a control for the CPAP apparatus. A blower is connected through a hose and a mask, such as a nasal mask or a nasal cannula, to the patient's respiratory airway. An air flow sensor and an air pressure sensor are located at the blower end of the hose. Optionally, a vent valve also may be located at the blower end of the hose. The sensor outputs are used to estimate the air pressure at the mask and the air flow sensor output is used to determine the gross air flow to the hose, the patient air flow and the occurrence of patient snoring. The air flow sensor output also is used to generate a square wave breathing signal. The breathing signal may be used by a microprocessor to control the optional vent valve to establish different levels in the applied pressure during inspiration and expiration. The applied CPAP pressure may be increased in response to the detection of apnea and hypopnea events. The microprocessor detects and ignores mask leaks, open mouth breathing and exhale puff breathing.

    Abstract translation: 本发明涉及用于治疗呼吸暂停,呼吸不足和其它睡眠障碍的持续气道正压通气(CPAP)呼吸治疗仪,特别涉及CPAP装置的控制。 吹风机通过软管和面罩(例如鼻罩或鼻插管)连接到患者的呼吸气道。 气流传感器和气压传感器位于软管的鼓风机端。 可选地,排气阀也可以位于软管的鼓风机端。 传感器输出用于估算掩模上的空气压力,气流传感器输出用于确定到软管的总空气流量,患者空气流量和患者打鼾的发生情况。 气流传感器输出也用于产生方波呼吸信号。 呼吸信号可以由微处理器使用以控制可选的排气阀,以在吸气和呼气期间在施加的压力下建立不同的水平。 所应用的CPAP压力可以响应于呼吸暂停和呼吸不足事件的检测而增加。 微处理器检测并忽略面罩泄漏,张口呼吸和呼气呼吸。

    Implantable defibrillator patch lead
    12.
    发明授权
    Implantable defibrillator patch lead 失效
    植入式除颤器贴片引线

    公开(公告)号:US5330523A

    公开(公告)日:1994-07-19

    申请号:US926076

    申请日:1992-08-05

    CPC classification number: A61N1/0587

    Abstract: A defibrillator patch lead having a connecting element interconnecting an electrical conductor and a wire mesh electrode pad. The connecting element includes a body portion which has a slot cut therein into which a portion of the wire mesh electrode is inserted and securely bonded, preferably by laser welding. The connecting element further includes a female connector portion which is designed to mate with a male core sleeve. The core sleeve includes a channel for receiving a first conductor therein, which is then electrically and mechanically connected (e.g., by either welding or crimping). The core sleeve also includes an orifice for receiving a second conductor, which is subsequently electrically and mechanically connected (e.g., by either welding or crimping) between the core sleeve and the connecting element. Advantageously, the combination of the core sleeve, two conductors, and the connecting element have superior pull strength over conventional methods of attachment. Furthermore, the use of two conductors provides additional redundancy in the event one conductor fails.

    Abstract translation: 一种除颤器补片引线,其具有将电导体和丝网电极焊盘互连的连接元件。 连接元件包括主体部分,其具有切割在其中的狭槽,优选地通过激光焊接,丝网电极的一部分被插入并牢固地接合到该主体部分中。 连接元件还包括阴连接器部分,其被设计成与阳芯套管配合。 芯套筒包括用于在其中接收第一导体的通道,然后电连接和机械连接(例如通过焊接或压接)。 芯套还包括用于接收第二导体的孔,其随后在芯套和连接元件之间电连接和机械连接(例如通过焊接或压接)。 有利的是,与常规的附接方法相比,芯套管,两个导体和连接元件的组合具有优异的拉伸强度。 此外,如果一根导体失效,则使用两根导线提供额外的冗余。

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