Pulse detection apparatus, software, and methods using patient physiological signals
First Claim
1. A device for providing treatment to a patient, comprising:
- a pulse sensor;
a breathing detection device;
a controller operatively coupled to the pulse sensor and the breathing detection device and structured to determine a defibrillation therapy protocol based on a first input from the pulse sensor and a second input from the breathing detection device;
an output device operatively coupled to the pulse sensor and the breathing detection device and configured to issue a prompt to provide rescue breathing in the event the pulse sensor senses a pulse in the patient and the breathing detection device determines that the patient is not breathing; and
a defibrillator coupled to the controller and configured to operate according to the defibrillation therapy protocol.
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Accused Products
Abstract
The presence of a cardiac pulse in a patient is determined by evaluating physiological signals in the patient. In one embodiment, a medical device evaluates two or more different physiological signals, such as phonocardiogram (PCG) signals, electrocardiogram (ECG) signals, patient impedance signals, piezoelectric signals, and accelerometer signals for features indicative of the presence of a cardiac pulse. Using these features, the medical device determines whether a cardiac pulse is present in the patient. The medical device may also be configured to report whether the patient is in a VF, VT, asystole, or PEA condition, in addition to being in a pulseless condition, and prompt different therapies, such as chest compressions, rescue breathing, defibrillation, and PEA-specific electrotherapy, depending on the analysis of the physiological signals. Auto-capture of a cardiac pulse using pacing stimuli is further provided.
121 Citations
11 Claims
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1. A device for providing treatment to a patient, comprising:
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a pulse sensor; a breathing detection device; a controller operatively coupled to the pulse sensor and the breathing detection device and structured to determine a defibrillation therapy protocol based on a first input from the pulse sensor and a second input from the breathing detection device; an output device operatively coupled to the pulse sensor and the breathing detection device and configured to issue a prompt to provide rescue breathing in the event the pulse sensor senses a pulse in the patient and the breathing detection device determines that the patient is not breathing; and a defibrillator coupled to the controller and configured to operate according to the defibrillation therapy protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for providing treatment to a patient, comprising:
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sensing a pulse of the patient; detecting by a breathing detection device whether the patient is breathing; determining a defibrillation therapy protocol based on the sensed pulse and whether the patient is breathing; applying defibrillation therapy to the patient according to the protocol; prompting a caregiver to provide rescue breathing when the patient'"'"'s pulse is sensed and the patient has no detected breathing. - View Dependent Claims (10, 11)
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Specification