CHEST STRAP FOR MEASURING VITAL SIGNS
First Claim
1. A system for measuring vital signs from a patient comprising:
- a chest strap comprising a plurality of electrodes connected to an amplifier circuit and configured to generate an electrical signal;
an optical sensor, connected to the chest strap, comprising at least one light source and a photodetector configured to generate an optical signal;
a processor in electrical communication with both the amplifier circuit and the optical sensor and configured to receive the optical and electrical signals and process these signals with an algorithm to determine the patient'"'"'s vital signs.
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Accused Products
Abstract
The invention provides a monitor featuring a chest strap that measures a variety of different vital signs (e.g., heart rate, blood pressure, and pulse oximetry) and wirelessly transmits them to an external device. The chest strap features: i) an electrode system with at least two electrodes that generate electrical signals to generate an ECG waveform; ii) an optical component featuring a light source and a photodetector that generate an optical waveform; iii) a processing component that receives and processes the ECG and optical waveforms to generate vital sign parameters, e.g. heart rate, pulse oximetry, and systolic and diastolic blood pressure; and iv) a wireless transmitter that receives the vital sign parameters from the processing component and wirelessly transmits them to the external device.
376 Citations
21 Claims
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1. A system for measuring vital signs from a patient comprising:
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a chest strap comprising a plurality of electrodes connected to an amplifier circuit and configured to generate an electrical signal;
an optical sensor, connected to the chest strap, comprising at least one light source and a photodetector configured to generate an optical signal;
a processor in electrical communication with both the amplifier circuit and the optical sensor and configured to receive the optical and electrical signals and process these signals with an algorithm to determine the patient'"'"'s vital signs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18)
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13. A system for measuring vital signs from a patient comprising:
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a chest strap comprising a plurality of electrodes connected to an amplifier circuit and configured to generate an electrical signal;
an optical sensor, comprised by the chest strap, comprising at least one light source and a photodetector configured to generate an optical signal;
a processor in electrical communication with the amplifier circuit and the optical sensor and configured to receive the optical and electrical signals and process these signals with an algorithm to determine the patient'"'"'s vital signs. - View Dependent Claims (14, 15, 16, 17, 19, 20)
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21. A system for measuring blood pressure from a patient comprising:
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a chest strap comprising a plurality of electrodes connected to an amplifier circuit and configured to generate an electrical signal;
an optical sensor, comprised by the chest strap, comprising at least one light source and a photodetector configured to generate an optical signal;
a processor in electrical communication with the amplifier circuit and the optical sensor and configured to receive the optical and electrical signals and process these signals with an algorithm that determines blood pressure by processing;
1) a first time-dependent feature of the optical signal;
2) a second time-dependent feature of the electrical signal; and
3) a calibration parameter.
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Specification