US 10,328,202 B2 · Methods and systems for determining fluid administration

Abstract

Methods and systems are provided for determining fluid administration. The system may determine fluid administration based on the fluid responsiveness and regional oxygen saturation of a subject. The system may receive the fluid responsiveness and regional oxygen saturation from external sources or may determine one or both based on received physiological signals. In some embodiments, the system may determine whether to administer fluid based on the fluid responsiveness and regional oxygen saturation. In some embodiments, the system may determine the amount of fluid to administer based on the fluid responsiveness and regional oxygen saturation. In some embodiments, the system may determine the effectiveness of fluid administration. In some embodiments, the system may provide an indication of the determined fluid administration so that a care-giver can implement the appropriate fluid administration. In some embodiments, the system may control the fluid administration based on its determination.

Claims20

Dependent claims

A physiological monitoring system comprising:

a pulse oximetry sensor configured to:
detect at least one first wavelength of light from a first tissue of a subject;
and
generate a photoplethysmograph (PPG) signal based on the detected at least one first wavelength of light;
a regional oxygen saturation sensor configured to detect at least one second wavelength of light from a second tissue of the subject and determine a value indicative of regional oxygen saturation in the second tissue;
and
a processor coupled to the pulse oximetry sensor and the regional oxygen saturation sensor, wherein the processor is configured to:
receive the PPG signal;
determine a value indicative of fluid responsiveness of the subject based on a change in the PPG signal over time;
receive the value indicative of regional oxygen saturation in the second tissue;
and
determine whether to administer fluid to the subject based on the value indicative of regional oxygen saturation and the value indicative of fluid responsiveness.

9 more elements

A physiological monitoring system comprising:

a monitor configured to receive a first plurality of physiological signals generated by a pulse oximetry sensor coupled to the physiological monitoring system and a second plurality of physiological signals generated by a regional oxygen saturation sensor coupled to the physiological monitoring system, wherein the first plurality of physiological signals are indicative of light detected from a first tissue of a subject and the second plurality of physiological signals are indicative of light detected from a second tissue of the subject, the monitor comprising a processor configured to:
calculate regional oxygen saturation in the second tissue of the subject based on the second plurality of physiological signals, wherein the second plurality of physiological signals comprise signals from a first detector and a second detector spaced apart from the first detector, and wherein the regional oxygen saturation is calculated based on a differential absorption of light in the second tissue as detected at the first detector relative to the second detector;
calculate a parameter indicative of fluid responsiveness based on the first plurality of physiological signals;
and
provide an indication to administer fluid to the subject based on the regional oxygen saturation and the parameter indicative of fluid responsiveness.

2 more elements

Dependencies are inferred from the claim text.

Methods and systems for determining fluid administration

Life of this patent

Methods and systems for determining fluid administration

Life of this patent

Abstract

Claims20