Granted Patent B2

US 12,201,420 · App. 17/550,189 · Granted Jan 21, 2025

Inventor: Ammar Al-Ali (San Juan Capistrano, CA)

Assignee: Masimo Corporation

A61B5/1455A61B5/14552A61B5/6826A61B5/7221A61B5/7275G16H40/63G16H50/30A61B5/02055A61B5/742A61B5/746A61B2560/0443

Abstract

Claims (21)

1. A physiological monitor for monitoring total hemoglobin of a subject, the physiological monitor comprising:

a display screen;

a connector configured to removably connect to a first optical sensor and a second optical sensor, each of the first and second optical sensors comprising at least one emitter configured to emit optical radiation towards a tissue measurement site of the subject when in use and at least one detector configured to detect at least a portion of the optical radiation emitted from the at least one emitter after attenuation by at least a portion of the tissue measurement site and output at least one signal responsive to detected light, wherein the second optical sensor comprises more emitters than the first optical sensor; and

one or more hardware processors configured to:

receive said at least one signal outputted from the at least one detector of the first optical sensor;

determine a first hemoglobin estimate based on said at least one signal outputted from the at least one detector of the first optical sensor;

determine whether said first hemoglobin estimate is below a predetermined threshold, said predetermined threshold indicative of internal bleeding of the subject; and

generate a total hemoglobin index display in a portion of the display screen based at least on said first hemoglobin estimate and said predetermined threshold, said generated total hemoglobin index display providing information indicative of a need for determining a second total hemoglobin estimate using the second optical sensor when said first total hemoglobin estimate is below said predetermined threshold, wherein said one or more hardware processors are further configured to determine said second total hemoglobin estimate based on said at least one signal outputted from the at least one detector of the second optical sensor.

2. The physiological monitor of claim 1 , wherein the physiological monitor comprises a base unit and a handheld unit removably connectable to the base unit, and wherein the handheld unit comprises said connector that is configured to removably connect to said first and second optical sensors.

3. The physiological monitor of claim 2 , wherein the base unit comprises said display screen.

4. The physiological monitor of claim 2 , wherein the handheld unit comprises said display screen.

5. The physiological monitor of claim 1 , wherein said one or more hardware processors are further configured to determine at least one of pulse rate and respiration rate of the subject based on said at least one signal outputted from the at least one detector of the first optical sensor.

6. The physiological monitor of claim 1 , wherein said at least one signal outputted from the at least one detector of the first optical sensor comprises a plurality of signals, and wherein said one or more hardware processors are further configured to determine a total hemoglobin trend of the subject based on said plurality of signals over a time period.

7. A physiological monitor for monitoring total hemoglobin of a subject, the physiological monitor configured to removably connect to a first optical sensor and a second optical sensor, each of the first and second optical sensors comprising at least one emitter configured to emit optical radiation towards a tissue measurement site of the subject and at least one detector configured to detect at least a portion of the optical radiation emitted from the at least one emitter after attenuation by at least a portion of the tissue measurement site and output at least one signal responsive to detected light, the physiological monitor comprising one or more hardware processors configured to:

receive said at least one signal outputted from the at least one detector of the first optical sensor;

determine a first hemoglobin estimate based on said at least one signal outputted from the at least one detector of the first optical sensor;

determine whether said first hemoglobin estimate is below a predetermined threshold; and

display, in a portion of a display screen of the physiological monitor, physiological information comprising said first hemoglobin estimate and said predetermined threshold or information representative of said first hemoglobin estimate and said predetermined threshold, said physiological information usable for determining a need to utilize the second optical sensor to obtain a second total hemoglobin estimate of the subject.

8. The physiological monitor of claim 7 , wherein the physiological monitor comprises a base unit and a handheld unit removably connectable to the base unit, and wherein the handheld unit is configured to removably connect to said first and second optical sensors.

9. The physiological monitor of claim 8 , wherein the base unit comprises said one or more hardware processors.

10. The physiological monitor of claim 7 , wherein said one or more hardware processors are further configured to determine at least one of pulse rate and respiration rate of the subject based on said at least one signal outputted from the at least one detector of the first optical sensor.

Assignments (1)

Continuity (4)

References Cited (400)