A system and method for determining CPR induced chest compression depth using two sensors while accounting for different orientations of the two sensors. The system may include a first motion sensor operable to generate motion signals corresponding to motion in a first coordinate frame defined by a first set of axes and a second motion sensor operable to generate motion signals corresponding to motion in a second coordinate frame defined by a second set of axes and a control system operable to receive the motion signals from the first motion sensor and the second motion sensor, rotate the motion signals from the first motion sensor into the second coordinate frame to obtain rotated motion signals corresponding to the motion signals from the first motion sensor, and combine the rotated motion signals with the motion signals from the second motion sensor to generate an output indicative of said displacement.

In embodiments, a Cardio-Pulmonary Resuscitation (CPR) system includes a retention structure, a compression mechanism coupled to the retention structure and a backboard. The retention structure and the backboard can be assembled together so as to form a closed loop that surrounds the patient's torso, and a piston of the compression mechanism is movable towards and away from a chest of a patient. In addition, the CPR system has a stabilizing member, and a coupler configured to couple the stabilizing member to the backboard. The stabilizing member can prevent the retention structure from tilting while the CPR system delivers chest compressions to the patient.

A patient support apparatus for supporting a patient includes a mattress with an inflatable mattress portion with a plurality of states. The apparatus further includes a control system to control inflation or deflation of the mattress portion to change its state between two or more of the states. The apparatus further includes a user interface in communication with the control system, which is configured to allow a user to select an inflate or deflate function of the mattress portion to change the state of the mattress portion. Further, the control system is operable to inflate or deflate the mattress portion in response to the signal being generated when a user selects an inflate or deflate function at the user interface. The control system is configured to generate a notification indicative of the selected state of the mattress portion to remind to a caregiver to change the selected state.

A respiration-assistance apparatus or method can include or use a lifting element such as to cyclically push, pull, or lift, toward a superior direction of the subject, at least one subject region during an inhalation portion of a respiration cycle of the subject. A cyclical member can couple the lifting element to a fixed reference. Abdominal or ribcage compression can be provided. A multi-action or other cam can be used, such as together with a reciprocating element. Examples can be configured for use with a wheelchair, a bed, a vacuum or suction affixation element, a wearable garment, etc.

A system for performing an active compression decompression (ACD) treatment on a patient includes a platform for placement under a patient, a chest compression actuator that may include a belt configured to extend over a thorax of the patient, an upward force actuator, a coupling mechanism for coupling the upward force actuator to the thorax of the patient to transfer a decompressing force from the upward force actuator to the thorax of the patient, and a motor that is coupled to the belt, the motor configured to cause the belt to tighten about the thorax of the patient and exert a compressing force on the thorax of the patient; and cause the belt to loosen about the thorax of the patient and allow the upward force actuator to cause decompression of the patient.

A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.

Embodiments of the present disclosure relate generally to the use of spectral sensors during a cardiac arrest event. More specifically, the present disclosure relates to the use of spectral sensors for measuring changes in pH and muscle oxygen saturation to estimate subject down time and evaluating the effectiveness of the clinical treatment administered during a cardiac arrest event. Given the narrow window of time in which emergency treatment must be administered, as well as the lack of information concerning the subject's condition, there is a need for a fast and accurate method of estimating the onset of the cardiac arrest emergency and evaluating the effectiveness of the emergency treatment being administered.

A mechanical chest compression device is secured to a gurney, transport stretcher or ambulance cot while engaging a patient's thorax to provide mechanical CPR during transport. The mechanical chest compression device compresses the patient's thorax against the gurney deck. The mechanical chest compression device may engage the side rails on the gurney, the gurney deck or any suitable structural elements of the gurney.

Embodiments of the invention are related to a foldable stretcher that includes, a foldable fabric, one or more sensors for detecting a medical condition of a patient, attached to the foldable fabric and configured to connect to one or more external medical condition monitoring units; and one or more treatment supplying channels for supplying medical treatment to the patient and configured to connect to one or more treatment supplying units.

A cardio-pulmonary compression board includes a board (10) configured for a patient. A leg (20) is pivotally connected to the board, and the leg includes a free end portion having a mechanical feature (35) configured to be received in a compression device to adjustably secure the compression device at a distance from the board in an operational position. A locking mechanism (32, 42) is configured to releasably maintain the leg in the operational position, which is transverse to a plane of the board.