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1.
公开(公告)号:US11890079B1
公开(公告)日:2024-02-06
申请号:US17156573
申请日:2021-01-23
发明人: Thomas Sandgaard
IPC分类号: A61B5/02 , A61B5/0205 , A61B5/00 , A61B5/026 , A61B5/0531
CPC分类号: A61B5/02042 , A61B5/02055 , A61B5/4848 , A61B5/6826 , A61B5/6829 , A61B5/746 , A61B5/7425 , A61B5/026 , A61B5/0531 , A61B5/443 , A61B5/7435 , A61B2505/05 , A61B2562/029
摘要: Noninvasive methods and apparatus for detecting blood volume imbalances in a mammalian subject are disclosed. The method includes obtaining baseline measurements of at least three physiological parameters from a subject wherein the parameters are selected from the group consisting of heart rate, electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity. Measurements of electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity are taken at one or more extremities of the subject such as the calf, ankle, forearm, thigh, fingers and toes. The physiological parameters for which baseline measurements were obtained are then monitored to detect changes from the baseline measurements that indicate blood volume imbalances. A preferred embodiment comprises computing a baseline blood volume index from the baseline value measurements of each parameter to be monitored and then carrying out the step of monitoring by obtaining real time (current) value measurements of these parameters which are inputted into an algorithm which computes a real time (current) blood volume index based upon the differences between the baseline and real time (current) value measurements.
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公开(公告)号:US20220202350A1
公开(公告)日:2022-06-30
申请号:US17566403
申请日:2021-12-30
IPC分类号: A61B5/00 , A61B5/0205 , A61B5/024 , A61B5/08 , G16H50/30
摘要: A system for monitoring sepsis comprises one or more sensors that noninvasively monitor a patient to produce sensor data and processing circuitry to: derive, from the sensor data, one or more physiological parameters of the patient that are indicative of a sepsis state of the patient; apply a set of rules to the one or more physiological parameters; determine a sepsis state for the patient based on the set of rules applied to the one or more physiological parameters; and output at least one signal indicative of the sepsis state of the patient. The system includes an output device that outputs a notification based on the at least one signal.
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3.
公开(公告)号:US20240148257A1
公开(公告)日:2024-05-09
申请号:US18413469
申请日:2024-01-16
发明人: Thomas Sandgaard
IPC分类号: A61B5/02 , A61B5/00 , A61B5/0205
CPC分类号: A61B5/02042 , A61B5/02055 , A61B5/4848 , A61B5/6826 , A61B5/6829 , A61B5/7425 , A61B5/746 , A61B5/026 , A61B5/443 , A61B5/7435 , A61B2505/05 , A61B2562/029
摘要: Noninvasive methods and apparatus for detecting blood volume imbalances in a mammalian subject are disclosed. The method includes obtaining baseline measurements of at least three physiological parameters from a subject wherein the parameters are selected from the group consisting of heart rate, electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity. Measurements of electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity are taken at one or more extremities of the subject such as the calf, ankle, forearm, thigh, fingers and toes. The physiological parameters for which baseline measurements were obtained are then monitored to detect changes from the baseline measurements that indicate blood volume imbalances. A preferred embodiment comprises computing a baseline blood volume index from the baseline value measurements of each parameter to be monitored and then carrying out the step of monitoring by obtaining real time (current) value measurements of these parameters which are inputted into an algorithm which computes a real time (current) blood volume index based upon the differences between the baseline and real time (current) value measurements.
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公开(公告)号:US20220202349A1
公开(公告)日:2022-06-30
申请号:US17566275
申请日:2021-12-30
发明人: Thomas Sandgaard
IPC分类号: A61B5/00
摘要: A system for monitoring sepsis comprises one or more sensors that noninvasively monitor a patient to produce sensor data and processing circuitry to: derive, from the sensor data, one or more physiological parameters of the patient that are indicative of a sepsis state of the patient; apply a set of rules to the one or more physiological parameters; determine a sepsis state for the patient based on the set of rules applied to the one or more physiological parameters; and output at least one signal indicative of the sepsis state of the patient. The system includes an output device that outputs a notification based on the at least one signal.
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5.
公开(公告)号:US10898082B2
公开(公告)日:2021-01-26
申请号:US16198834
申请日:2018-11-22
发明人: Thomas Sandgaard
IPC分类号: A61B5/02 , A61B5/026 , A61B5/0205 , A61B5/00 , A61B5/053
摘要: Noninvasive methods and apparatus for detecting blood volume imbalances in a mammalian subject are disclosed. The method includes obtaining baseline measurements of at least three physiological parameters from a subject wherein the parameters are selected from the group consisting of heart rate, electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity. Measurements of electrical body impedance, skin temperature, perfusion index, peripheral blood flow and skin humidity are taken at one or more extremities of the subject such as the calf, ankle, forearm, thigh, fingers and toes. The physiological parameters for which baseline measurements were obtained are then monitored to detect changes from the baseline measurements that indicate blood volume imbalances. A preferred embodiment comprises computing a baseline blood volume index from the baseline value measurements of each parameter to be monitored and then carrying out the step of monitoring by obtaining real time (current) value measurements of these parameters which are inputted into an algorithm which computes a real time (current) blood volume index based upon the differences between the baseline and real time (current) value measurements.
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