Physiological feedback systems and methods
AssigneePhysio-Control, Inc.
InventorsRobert G. Walker, Fred W. Chapman
Life of this patent
Estimating the term…
Abstract
The disclosed physiological feedback systems and methods assist with assessing, monitoring and/or treating a patient experiencing a cardiac arrest event. The systems and methods receive multiple inputs and are continuous and/or iterative during a treatment session to provide physiological state trends of the patient. An index of the physiological state of the patient can be derived and confounders, and/or their effects, can be identified, and/or removed, from the index. Additionally, the systems and methods can assist with determining ischemic injury in a patient based on cerebral tissue oxygenation and/or other physiological data.
Claims20
A medical device, comprising:
- a processor configured to:
- receive physiological parameter data comprising measurements of physiological parameters of a patient,
- determine an effectiveness index based at least in part on a positive correlation between the physiological parameters in the physiological parameter data, the effectiveness index being indicative of a hemodynamic adequacy of the patient;
- generate an instruction to alter a treatment of the patient based at least in part on the effectiveness index;
- and
- output the instruction.
A medical device, comprising:
- multiple patient sensors configured to generate physiological parameter data by measuring respective multiple physiological parameters of a patient, the multiple patient sensors comprising an oxygenation sensor that is configured to sense tissue oximetry measurements of the patient or an airway CO2 sensor configured to sense capnography measurements of the patient;
- a processor electrically coupled to the multiple patient sensors and configured to receive the physiological parameter data, the processor further configured to:
- determine an effectiveness index based at least in part on a positive correlation between the physiological parameters in the physiological parameter data, the effectiveness index being indicative of a hemodynamic adequacy of the patient;
- generate an instruction to alter a treatment of the patient based at least in part on the effectiveness index;
- and
- output the instruction.
A method, comprising:
- generating, by multiple sensors, physiological parameter data comprising oxygenation measurements of a patient and CO2 measurements of the patient,
- determining, by a processor, an effectiveness index based at least in part on a positive correlation between the oxygenation measurements and the CO2 measurements, the effectiveness index being indicative of a hemodynamic adequacy of the patient;
- generating, by the processor, an instruction to alter a cardiopulmonary resuscitation (CPR) treatment of the patient based at least in part on the effectiveness index;
- and
- outputting, by a display, the instruction and the effectiveness index.
Dependencies are inferred from the claim text.