BILATERAL DEVICE, SYSTEM AND METHOD FOR MONITORING VITAL SIGNS
First Claim
1. A method for measuring a blood pressure of a user, the method comprising:
- generating a first optical waveform from a signal from a first optical sensor positioned on the user;
generating a second optical waveform from a signal from a second optical sensor positioned on the user, the second optical waveform generated simultaneously with the first optical waveform, the second optical sensor positioned a distinguishable distance from the first optical sensor on the user;
generating an electrical waveform from a signal from a first electrode positioned in proximity with the first optical sensor and a signal from a second electrode positioned in proximity with the second optical sensor;
determining a first pulse transit time, the first pulse transit time calculated by processing the electrical waveform and the first optical waveform;
determining a second pulse transit time, the second pulse transit time calculated by processing the electrical waveform and the second optical waveform; and
processing the first pulse transit time and the second pulse transit time to determine a blood pressure value for the user.
2 Assignments
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Accused Products
Abstract
The invention features a monitoring device that measures a patient'"'"'s vital signs (e.g. blood pressure). The device features a first sensor configured to attach to a first portion of the patient'"'"'s body that includes: i) a first electrode configured to generate a first electrical signal from the first portion of the patient'"'"'s body; ii) a first light-emitting component; and iii) a first photodetector configured to receive radiation from the first portion of the patient'"'"'s body after the radiation is emitted by the first light-emitting component and in response generate a first optical waveform. The device also features a second sensor that includes essentially the same components. An amplifier system, in electrical contact with the first and second electrodes, receives first and second electrical signals from the two sensors to generate an electrical waveform. A processor, in electrical contact with the amplifier system, receives the electrical waveform, the first optical waveform, and the second optical waveform. The processor runs computer code that processes the input waveforms with an algorithm to determine at least one of the patient'"'"'s vital signs.
164 Citations
22 Claims
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1. A method for measuring a blood pressure of a user, the method comprising:
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generating a first optical waveform from a signal from a first optical sensor positioned on the user; generating a second optical waveform from a signal from a second optical sensor positioned on the user, the second optical waveform generated simultaneously with the first optical waveform, the second optical sensor positioned a distinguishable distance from the first optical sensor on the user; generating an electrical waveform from a signal from a first electrode positioned in proximity with the first optical sensor and a signal from a second electrode positioned in proximity with the second optical sensor; determining a first pulse transit time, the first pulse transit time calculated by processing the electrical waveform and the first optical waveform; determining a second pulse transit time, the second pulse transit time calculated by processing the electrical waveform and the second optical waveform; and processing the first pulse transit time and the second pulse transit time to determine a blood pressure value for the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for measuring a blood pressure of a user, the method comprising:
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generating a plurality of optical waveforms, each of the plurality of optical waveforms generated from a signal from an optical sensor, wherein each optical sensor is positioned a distinguishable amount from any other optical sensor on the user; generating an electrical waveform from a plurality of signals, each of the plurality of signals generated from an electrode positioned in proximity to an optical sensor; determining a plurality of pulse transit times, each of the plurality of pulse transit times calculated by processing the electrical waveform and at least two optical waveforms; processing each of the plurality of pulse transit times to determine a blood pressure value for the user. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for measuring a blood pressure of a user, the method comprising:
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generating a first optical waveform from a signal from a first optical sensor positioned on a finger of a right-hand of the user; generating a second optical waveform from a signal from a second optical sensor, the second optical waveform generated simultaneously with the first optical waveform, the second optical sensor positioned on a finger of a left-hand of the user; generating an electrical waveform from a signal from a first electrode positioned in proximity with the first optical sensor and a signal from a second electrode positioned in proximity with the second optical sensor; determining a first pulse transit time, the first pulse transit time calculated by processing the electrical waveform and the first optical waveform; determining a second pulse transit time, the second pulse transit time calculated by processing the electrical waveform and the second optical waveform; and processing the first pulse transit time and the second pulse transit time to determine a blood pressure value for the user.
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22. A method for measuring a blood pressure of a user, the method comprising:
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generating a first optical waveform from a signal from a first optical sensor positioned on the user; generating a second optical waveform from a signal from a second optical sensor positioned on the user, the second optical waveform generated simultaneously with the first optical waveform, the second optical sensor positioned a distinguishable amount from the first optical sensor on the user; generating an electrical waveform from a signal from a first electrode positioned in proximity with the first optical sensor and a signal from a second electrode positioned in proximity with the second optical sensor; determining a pulse transit time, the pulse transit time calculated by processing the first optical waveform and the second optical waveform; and processing the pulse transit time to determine a blood pressure value for the user.
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Specification