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公开(公告)号：US20240139531A1
公开(公告)日：2024-05-02
申请号：US18446391
申请日：2023-08-08
发明人： David P. Finch , Leo J. Gilbert , Joseph L. Sullivan , Jaeho Kim , John Wei-Hao Huang , Brian J. Bennett , Kenneth F. Cowan
IPC分类号： A61N1/39
CPC分类号： A61N1/3912 , A61N1/3904 , A61N1/3937 , A61N1/3987
摘要： Apparatus and methods for generating pulse pacing in a wearable cardioverter defibrillator (“WCD”). In one aspect the WCD circuitry includes a power source such as a battery coupled to a charger that provides charge energy to an energy storage module. Control circuitry is operatively coupled to the charger and the output circuitry, and configured to cause the WCD circuitry to generate pacing pulses delivered to therapy electrodes (attached to an ambulatory patient) without a current source. The WCD circuitry includes one or more processing elements that are used to execute instructions provided by one or more software modules that are configured to support various functionality, including controlling generation of pacing pulses.
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公开(公告)号：US20240050759A1
公开(公告)日：2024-02-15
申请号：US18492922
申请日：2023-10-24
CPC分类号： A61N1/3904 , A61N1/3925 , A61N1/0484 , A61N1/046 , A61N1/3993
摘要： In embodiments, an external defibrillator has an electrical circuit with a special output stage for the high-voltage defibrillation pulse. The output stage includes switches that can turn on for delivering the pulse, and off during all other times. The output stage also includes a diverting resistance to divert electrical current that could leak into the patient while a capacitor is being charged. An optional detector may notify if a component is malfunctioning. An advantage can be that an external defibrillator may be created according to embodiments that uses, in its output stage, semiconductor switches instead of relays. As semiconductor switches weigh less and occupy less volume than relays, an external defibrillator according to embodiments may have less weight and volume. Especially in wearable defibrillator applications, less weight means less effort to carry and less volume means easier concealment under clothing.
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