Hemoglobin display and patient treatment
First Claim
Patent Images
1. A patient monitoring system comprising:
- a noninvasive sensor for emitting energy into a patient measurement site and detecting the energy attenuated by the patient measurement site;
a processing board comprising;
an instrument manager including a memory buffer; and
a FFT module in communication with the instrument manager;
wherein the instrument manager is adapted to determine a first plurality of total hemoglobin readings over a first time period and to determine a second plurality of total hemoglobin readings over a second time period using the attenuated energy detected by the sensor and to store the first and second plurality of total hemoglobin readings in the memory buffer;
wherein the FFT module is adapted to perform a Fourier transform on the first and second plurality of total hemoglobin readings stored in the memory buffer and to determine a variation between of the outputs of the Fourier transform of the first and second total hemoglobin readings;
and wherein the instrument manager is adapted to trigger an alarm if the variation reaches a certain threshold.
4 Assignments
0 Petitions
Accused Products
Abstract
The present disclosure describes embodiments of a patient monitoring system and methods that include the measure and display of hemoglobin statistics. In an embodiment, total hemoglobin trending is displayed over a period of time. Statistics can include frequency domain analysis, which may be unique for each patient monitored. The total hemoglobin trending and/or statistics can further be used to help control the treatment of a patient, such as being used to control IV administration.
776 Citations
20 Claims
-
1. A patient monitoring system comprising:
-
a noninvasive sensor for emitting energy into a patient measurement site and detecting the energy attenuated by the patient measurement site; a processing board comprising; an instrument manager including a memory buffer; and a FFT module in communication with the instrument manager; wherein the instrument manager is adapted to determine a first plurality of total hemoglobin readings over a first time period and to determine a second plurality of total hemoglobin readings over a second time period using the attenuated energy detected by the sensor and to store the first and second plurality of total hemoglobin readings in the memory buffer; wherein the FFT module is adapted to perform a Fourier transform on the first and second plurality of total hemoglobin readings stored in the memory buffer and to determine a variation between of the outputs of the Fourier transform of the first and second total hemoglobin readings; and wherein the instrument manager is adapted to trigger an alarm if the variation reaches a certain threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A patient monitor device comprising:
-
a processing device configured to accept signals indicative of optical energy attenuated by patient tissue detected from a noninvasive, optical sensor and further configured to interpret the signals and determine a first plurality of total hemoglobin readings and a second plurality of total hemoglobin readings, wherein the processing device is further configured to perform a Fourier transform on the first and second plurality of total hemoglobin readings and determine a variation between the outputs of the Fourier Transform of the first and second plurality of total hemoglobin readings and trigger an alarm if the variation reaches a certain threshold; a memory for storing the first and second plurality of total hemoglobin measurements; and a display for displaying the first and second plurality of total hemoglobin measurements. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A method for monitoring patient hemoglobin levels, the method comprising:
-
emitting energy into a patient measurement site for attenuation by the measurement site; detecting attenuated energy from the measurement site; determining a first and second plurality of total hemoglobin readings from the detected attenuated energy over a period of time; applying a Fourier transform analysis to the first and second plurality of total hemoglobin readings; comparing the output of the first and second plurality of total hemoglobin readings to calculate a variation between the first and second plurality of total hemoglobin readings; and triggering an alarm if the variation reaches a certain threshold. - View Dependent Claims (16, 17, 18)
-
-
19. A method for treating a patient based on determined hemoglobin levels, the method comprising:
-
emitting energy into a patient measurement site for attenuation by the measurement site; detecting attenuated energy from the measurement site; determining a first and second plurality of indications of total hemoglobin from the detected attenuated energy over a period of time; performing a Fourier transform on the first and second plurality of indications of total hemoglobin and determining the variation between the outputs of the Fourier Transforms of the first and second plurality of indications of total hemoglobin; electronically determining a treatment based at least in part on the variation; and administering the treatment. - View Dependent Claims (20)
-
Specification