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.

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 method for measuring a myocardial physiologic parameter according to an embodiment includes placing an at least partially convex portion of a spectral sensor against an intercostal space of a human over a heart of the human and measuring the physiologic parameter of a myocardium of the heart with the spectral sensor over time during an emergency medical event. The spectral sensor may be configured to determine and visually display a suggested position adjustment for directing the spectral radiation more directly toward the tissue of interest (e.g. the myocardium), and/or for placing the operative elements of the spectral sensor closer to the tissue of interest (e.g. the myocardium).

Abstract: Systems and methods for determining validity of physiological data according to an embodiment of the present invention include a patient sensor configured to acquire patient data from a patient, wherein the patient data is physiological; and an environmental sensor configured to acquire environmental data related to validity of the patient data, wherein a value of the environmental data has a clinical effect on the validity of the patient data but not on performance of the environmental sensor; a control/monitoring system, wherein the control/monitoring system is configured to determine whether the environmental data satisfies one or more conditions indicative of the validity of the patient data and to flag the patient data that is invalid based on the determination.

Abstract: Embodiments of the present invention include a system having at least one sensor configured to monitor a muscle oxygen saturation (SmO2) level of a patient who is undergoing cardiac arrest and to generate a signal representing SmO2 level; a user interface device; a processor communicably coupled to the user interface device, the processor configured to cause the user interface device to present an array of two or more possible nodes of a clinical decision support tree, wherein at least one of the nodes indicates cardiopulmonary resuscitation (CPR) treatment of the patient with no ventilation, and wherein at least another of the nodes indicates CPR treatment of the patient with active ventilation; determine which of the two or more possible nodes should be emphasized based on the SmO2 level; and update the array of the two or more possible nodes based on the determination.

Abstract: Embodiments of the present invention include systems and methods for display and navigation of a clinical decision support process with portions thereof on separate display screens, as well as systems and methods for dynamically changing visual characteristics of softkeys on a patient monitor/defibrillator user interface screen based on clinical decision support or differential diagnosis processes, as well as a code review interface configured to permit a user to see what was displayed on a patient monitor/defibrillator user interface screen at any time during a medical event, as well as to see snapshots of other recorded parameters over the course of the medical event for purposes of code review, patient transfer, and improved patient care.