Abstract: 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.

Abstract: A system for assisting with a chest compression treatment being administered to a patient. In one aspect, the system for assisting with chest compression treatment includes at least one sensor configured to measure blood flow data, one or more processors, in communication with the at least one sensor, and an output device configured to provide the output indication to the rescuer. The one or more processors are configured to perform operations including receiving the blood flow data from the at least one sensor, based on the blood flow data, generating arterial blood flow data and venous blood flow data, providing an estimation of chest compression effectiveness based on the arterial blood flow data and the venous blood flow data, the estimation being based on at least one peak comparison of arterial blood flow and venous blood flow, and generating an output indication of the estimation of chest compression effectiveness.

Abstract: An automated chest compression (CC) system is described that includes a chest compressor configured to administer chest compressions to a patient, at least one tilt adjuster configured to tilt at least the head of the patient to a tilt angle during the administration of chest compressions to the patient, a patient support structure configured to couple to the chest compressor and to the at least one tilt adjuster, one or more tilt sensors, and a CC device controller configured to control the chest compressor to administer the chest compressions at a resuscitative rate, receive one or more signals, from the one or more tilt sensors, indicative of the tilt angle, determine tilt angle information from the one or more signals indicative of the tilt angle, and provide the tilt angle information to a user interface, wherein the patient support structure is adapted to support the back of the patient.

Abstract: A system for assisting cardio-pulmonary resuscitation (CPR) treatment of a patient includes a defibrillator system including a defibrillator communicatively coupled to a local computing device and configured to receive signals from treatment sensors, a patient support section, and a tilt adjuster coupled to the patient support section. The tilt adjuster is configured to communicatively couple with the defibrillator system, receive a control signal indicative of a target tilt angle from the local computing device, and automatically tilt the patient support section, around a transverse axis, to the target tilt angle in response to the control signal from the local computing device. The system also includes a chest compression device mount disposed on the patient support section and configured to adjustably secure a chest compression device to the patient support section.

Abstract: A system for assisting with a chest compression treatment being administered to a patient. In one aspect, the system for assisting with chest compression treatment includes at least one sensor configured to measure blood flow data, one or more processors, in communication with the at least one sensor, and an output device configured to provide the output indication to the rescuer. The one or more processors are configured to perform operations including receiving the blood flow data from the at least one sensor, based on the blood flow data, generating arterial blood flow data and venous blood flow data, providing an estimation of chest compression effectiveness based on the arterial blood flow data and the venous blood flow data, the estimation being based on at least one peak comparison of arterial blood flow and venous blood flow, and generating an output indication of the estimation of chest compression effectiveness.

Abstract: A medical device for assessing clinical patient deterioration in an in-patient hospital environment is provided. The medical device includes a processor and sensors that couple externally to a skin of the patient to acquire electrocardiogram (ECG) and other physiologic signals. The processor is configured to receive a medical history of the patient; generate physiologic data, including ECG data, over a period of time based on one or more physiologic signals; and execute a risk assessment process associated with a clinical condition of the patient. The risk assessment process analyzes the physiologic data and the medical history of the patient to generate a risk estimate of deterioration of the patient's clinical condition.

Abstract: An example of a system for providing emergency care to a patient includes an automated chest compression device configured to engage the patient at the patient's sternum to provide multiple chest compression cycles to the patient's sternum, an automated mechanical ventilation device to induce negative pressure ventilation, and a controller operably coupled to the automated chest compression device and the automated mechanical ventilation device and including one or more processors configured to control the automated chest compression device to cyclically perform chest compressions, and control the automated mechanical ventilation device to cyclically induce the negative pressure ventilation out-of-phase with the chest compressions such that the automated mechanical ventilation device cyclically induces the negative pressure ventilation prior to each compression of the patient's sternum.

Abstract: A medical device for assessing clinical patient deterioration in an in-patient hospital environment is provided. The medical device includes a processor and sensors that couple externally to a skin of the patient to acquire electrocardiogram (ECG) and other physiologic signals. The processor is configured to receive a medical history of the patient; generate physiologic data, including ECG data, over a period of time based on one or more physiologic signals; and execute a risk assessment process associated with a clinical condition of the patient. The risk assessment process analyzes the physiologic data and the medical history of the patient to generate a risk estimate of deterioration of the patient's clinical condition.

Abstract: A medical device including a probe configured to be orally inserted into a lumen extending into the thorax of the subject, a plurality of electrodes, and a control circuit. The probe includes a first electrode. The plurality of electrodes includes at least one second electrode and at least one third electrode configured to be disposed externally on the thorax of the subject on a first side of a sternum of the subject and a second side of the sternum of the subject, respectively, the second side opposite the first side. The control circuit is electrically coupled to the first electrode and the at least one second and third electrodes and configured to measure an impedance between the first electrode and each of the at least one second and third electrodes and determine a ratio of arterial blood volume relative to venous blood volume based upon the measured impedance.

Abstract: A CPR chest compression system which uses tonometric data as feedback for control of chest compression device.

Abstract: 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.

Abstract: Devices, systems and methods useable for useable for monitoring a physiological variable in a target tissue or body fluid located within the thorax of a subject by optical spectroscopy.

Abstract: A CPR chest compression system which uses tonometric data as feedback for control of chest compression device.

Abstract: A portable medical treatment apparatus and interactive application that leads a user through a medically acceptable query flow for treating medical emergencies, including cardiac or pulmonary medical emergencies that can be treated with electrotherapy and other medical emergencies.

Abstract: A system for assisting cardio-pulmonary resuscitation (CPR) treatment of a patient includes a defibrillator system including a defibrillator communicatively coupled to a local computing device and configured to receive signals from treatment sensors, a patient support section, and a tilt adjuster coupled to the patient support section. The tilt adjuster is configured to communicatively couple with the defibrillator system, receive a control signal indicative of a target tilt angle from the local computing device, and automatically tilt the patient support section, around a transverse axis, to the target tilt angle in response to the control signal from the local computing device. The system also includes a chest compression device mount disposed on the patient support section and configured to adjustably secure a chest compression device to the patient support section.

Abstract: A patient support structure for assisting cardiopulmonary resuscitation (CPR) treatment of a patient is described. The patient support structure includes a base frame, one or more patient support sections supported by the base frame, at least one tilt adjuster coupled to at least one of the patient support sections and configured to tilt the at least one of the patient support sections, around a transverse axis of the patient support structure, to a tilt angle, and a chest compression (CC) device mount disposed on at least one of the patient support sections and configured to adjustably secure a CC device to the patient support structure. The tilt angle may be a target tilt angle and the patient support structure may further include a processor configured to determine the target tilt angle based on at least one of sensor input and user input.

Abstract: Devices, systems and methods for controlling or preventing left and/or right ventricular overload with and without concurrent extracorporeal life support.

Abstract: An example of a system for providing emergency care to a patient includes an automated chest compression device configured to engage the patient at the patient's sternum to provide multiple chest compression cycles to the patient's sternum, an automated mechanical ventilation device to induce negative pressure ventilation, and a controller operably coupled to the automated chest compression device and the automated mechanical ventilation device and including one or more processors configured to control the automated chest compression device to cyclically perform chest compressions, and control the automated mechanical ventilation device to cyclically induce the negative pressure ventilation out-of-phase with the chest compressions such that the automated mechanical ventilation device cyclically induces the negative pressure ventilation prior to each compression of the patient's sternum.

Abstract: An example of a system for providing emergency care to a patient is described that includes a backboard arranged to support the patient, a chest compressor attached to the backboard and positioned to engage the patient at the chest, the chest compressor configured to provide multiple chest compression cycles to the patient, a cuirass attached to the backboard and positioned to engage the patient at the abdomen, the cuirass configured to generate negative pressure to pull outward on the abdomen and to provide multiple abdominal compression cycles to the patient and a controller including processors configured to: control the chest compressor to perform the multiple chest compression cycles according to a programmed sequence, control the cuirass to perform the multiple abdominal compression cycles according to the programmed sequence, and control the cuirass to generate the negative pressure to pull outward on the abdomen during the multiple abdominal compression cycles.

Abstract: A system for non-invasively measuring a physiologic status patient tissue according to an embodiment includes a housing; an optical spectroscope with a wavelength-sensitive sensor capable of detecting light intensity, at two or more distinct wavelengths, of light scattered and/or reflected by muscle tissue of the patient in order to measure a physiologic status of the muscle tissue, a bioimpedance sensor at least partially disposed within the housing, the bioimpedance sensor configured to generate a signal corresponding to an estimation of a thickness of an adipose tissue layer between the optical spectroscope and the muscle tissue, and a processor configured to (1) receive the estimations of the thickness, (2) compare the estimations of the thickness, and (3) based on the comparison, generate a visual indication configured to assist in placement of the housing toward or at a location corresponding to the smaller or smallest thickness of the adipose tissue layer.