An external defibrillator system includes one or more compression sensors; one or more physiological sensors; and at least one processor. The at least one processor is configured to: receive and process chest compression signals and physiological signals from the sensors, determine values for chest compression depth and/or chest compression rate based on the received chest compression signals, determine a trend of at least one physiological parameter over a period comprising multiple chest compressions based on the received physiological signals, adjust a target chest compression depth and/or target chest compression rate based on the determined trend of the at least one physiological parameter, compare the determined values for chest compression depth and/or chest compression rate to the adjusted target compression depth and/or the adjusted target compression rate, and provide feedback about the quality of chest compressions performed on the patient.

Described herein are systems and methods of guiding a user to achieve musculoskeletal counterpulsation. A method may include receiving a cardiovascular cycle signal from a first sensor; determining a heart rate of the user based on the cardiovascular cycle signal; receiving a rhythmic musculoskeletal activity timing signal from a second sensor; determining an actual musculoskeletal activity cycle (MSKC) to cardiovascular cycle (CC) timing relationship; comparing the actual MSKC to CC timing relationship to a target MSKC to CC timing relationship; providing a recurrent prompt to the user as a timing indication for performance of a rhythmic musculoskeletal activity to guide the user to achieve a musculoskeletal activity cycle rate (MSKR) that approaches the target MSKC to CC timing relationship; and altering a feature of the recurrent prompt based on a determined alignment between the actual MSKC to CC timing relationship and the target MSKC to CC timing relationship.

Systems, computer-implemented methods and/or computer program products that facilitate real-time response to defined symptoms are provided. In one embodiment, a computer-implemented method comprises: monitoring, by a system operatively coupled to a processor, a state of an entity; detecting, by the system, defined symptoms of the entity by analyzing the state of the entity; and transmitting, by the system, a signal that causes audio response or a haptic response to be provided to the entity, wherein transmission of the signal that causes the audio response or the haptic response is based on detection of the defined symptoms.

Systems and methods for providing resuscitative chest compressions to a chest of a patient are described. One exemplary system may include a chest compressor for administering chest compressions to the patient, one or more sensors for measuring and generating electrocardiogram (ECG) signals of the patient's heart. The system may include at least one processor coupled to memory and configured to receive and analyze the signals corresponding to the ECG, determine an intrinsic heart rate, identify at least one ECG waveform within the ECG signals, select a chest compression protocol from at least three or at least four predetermined chest compression protocols for administration to the patient based at least in part on the intrinsic heart rate of the patient, and control the chest compressor based on the selected chest compression protocol.

Embodiments disclosed herein relate to a garment system including at least one sensor and at least one actuator that operates responsive to sensing feedback from the at least one sensor to cause a flexible compression garment to selectively constrict or selectively dilate, thereby compressing or relieving compression against at least one body part of a subject. Such selective constriction or dilation can improve muscle functioning or joint functioning during use of motion-conducive equipment, such as an exercise bike or rowing machine.

An elevation device used in the performance of cardiopulmonary resuscitation (CPR) includes a base and an upper support pivotably coupled to the base. The upper support is configured to elevate the individual's upper back, shoulders and head when pivoted. The upper support is expandable lengthwise. The upper support includes a neck support that is configured to support the individual's spine in a region of the individual's C7 and C8 vertebrae throughout elevation of the upper back, shoulders and head.

A human body support has a plurality of electrodes arranged in an array and spaced longitudinally with respect to the human body. The array extends from an inferior position to a more superior position along the body. A sensor measures a parameter of the human body that is capable of indicating the presence of drowsiness. A controller has an input connected to the sensor for receiving a signal representing the sensed parameter and has outputs connected to each of the electrodes. The controller detects whether the sensed parameter is within a range indicating the presence of drowsiness and applies a wave of electrical stimuli against the human body in response to detection of a sensed parameter within the range. The electrical stimuli cause periodic tightening and relaxing of proximate muscles as the wave progresses in a direction from an inferior location on the human body toward a more superior location.

A device includes a first vibrational transducer and a second vibrational transducer. The first vibrational transducer has a first vibrating property. The second vibrotactile stimulator has a second vibrating property different than the first vibrating property. A collar may be configured to position the first vibrational transducer and the second vibrational transducer over a neck of a subject. A method for stimulating swallowing in a subject includes applying a first vibrotactile stimulation and applying a second vibrotactile stimulation to a throat area of the subject. The first vibrotactile stimulation has a first vibrating property and the second vibrotactile stimulation has a second vibrating property different than the first vibrating property. Example vibrating properties include vibrating frequency, vibrating frequency range, wave shape, continuousness, frequency phase, and direction of mechanical force.

A CPR feedback system for assessing CPR carried out by a person on a subject and providing CPR feedback to the person, including an ECG system, a biosignal system, a CPR assessment system, and a CPR feedback unit. The CPR assessment system is configured to perform the steps (i) establish a reference ECG signal metric and a target biosignal metric, (ii) produce a CPR feedback signal, (iii) receive ECG signals measured during a plurality of chest compressions and use the ECG signals to establish a current ECG signal metric, (iv) receive biosignals and use the biosignals to establish a current biosignal metric, (v) compare the current ECG signal metric with the reference ECG signal metric and compare the current biosignal metric with the target biosignal metric, (vi) when the current ECG signal metric is less than the reference ECG signal metric and the current biosignal metric is less than the target biosignal metric, produce a CPR feedback signal, (vii) when the current ECG signal metric is less than the reference ECG signal metric and the current biosignal metric is equal to or greater than the target biosignal metric, increase the target biosignal metric and produce a CPR feedback signal advising the person to improve CPR performance, (viii) when the current ECG signal metric is equal to or greater than the reference ECG signal metric, set the reference ECG signal metric equal to the current ECG signal metric and produce a CPR feedback signal advising the person to maintain current CPR performance.

A compression garment apparatus for a body part of an human and/or animal having a flexible backing, attaching means, a segmented flex frame, and a shape memory alloy on the segmented flex frame. The shape memory alloy can be connected to two terminals on the frame forming a circuit. A controller can be connected to the terminals applying current to the shape memory alloy at defined intervals providing intermittent, sequenced, or continuous compression therapy.