IP Library › Granted Patent US 12,283,374
Granted Patent B2
US 12,283,374 · App. 17/101,625 · Granted Apr 22, 2025

Noninvasive multi-parameter patient monitor

Inventors: Ammar Al-Ali (San Juan Capistrano, CA); Joe E. Kiani (Laguna Niguel, CA)
Assignee: Willow Laboratories, Inc.
G16H40/67A61B5/0022A61B5/0205A61B5/02416A61B5/0261A61B5/0295A61B5/14532A61B5/14546A61B5/1455A61B5/14551A61B5/14552A61B5/1495A61B5/6815A61B5/6826A61B5/6829A61B5/6832A61B5/6838A61B5/7221A61B5/7246A61B5/7275A61B5/7278A61B5/7405A61B5/742A61B5/746A61B5/7475G16H10/40A61B1/00A61B5/02427A61B2562/08A61B2562/085A61B2562/185A61B2562/222Y10S439/909
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Quick Facts
Patent No.
US 12,283,374
App. No.
17/101,625
Granted
Apr 22, 2025
Kind
B2
Abstract

Embodiments of the present disclosure include a handheld multi-parameter patient monitor capable of determining multiple physiological parameters from the output of a light sensitive detector capable of detecting light attenuated by body tissue. For example, in an embodiment, the monitor is capable of advantageously and accurately displaying one or more of pulse rate, plethysmograph data, perfusion quality, signal confidence, and values of blood constituents in body tissue, including for example, arterial carbon monoxide saturation (“HbCO”), methemoglobin saturation (“HbMet”), total hemoglobin (“Hbt”), arterial oxygen saturation (“SpO2”), fractional arterial oxygen saturation (“SpaO2”), or the like. In an embodiment, the monitor displays a line associated with a patient wellness level.

Claims (40)

1. A patient monitoring system comprising:

a processor configured to:

receive physiological signals from one or more physiological sensors,

calculate measurements of a set of physiological parameters based at least in part on the one or more physiological signals, wherein the set of physiological parameters comprises an oxygen saturation parameter and at least two different hemoglobin parameters;

derive a value of an additional physiological parameter at least in part from the oxygen saturation parameter and the at least two different hemoglobin parameters;

cause a display of the patient monitoring system to display a default parameter indicator comprising at least some of the measurements of the set of physiological parameters;

receive an indication that a user has activated a button on the patient monitoring system; and

in response to receiving the indication, cause, for a predetermined period of time, the display of the patient monitoring system to replace the default parameter indicator with a second parameter indicator, wherein the second parameter indicator corresponds to an indicator of: the oxygen saturation parameter, at least one of the at least two different hemoglobin parameters, or the additional physiological parameter.

2. The patient monitoring system of claim 1 , wherein the oxygen saturation parameter is arterial oxygen saturation.

3. The patient monitoring system of claim 1 , wherein at least one of the at least two different hemoglobin parameters is hemoglobin, carboxyhemoglobin, methemoglobin, methemoglobin saturation, or oxyhemoglobin.

4. The patient monitoring system of claim 1 , wherein at least one of the at least two different hemoglobin parameters is an estimate of an amount of hemoglobin species that are carrying carbon monoxide.

5. The patient monitoring system of claim 1 , wherein at least one of the at least two different hemoglobin parameters is an estimate of an amount of hemoglobin species that are not carrying oxygen.

6. The patient monitoring system of claim 1 , wherein the additional physiological parameter is an estimate of an amount of hemoglobin species that are carrying oxygen.

7. The patient monitoring system of claim 1 , wherein the additional physiological parameter is fractional arterial oxygen saturation.

8. The patient monitoring system of claim 1 , wherein the oxygen saturation parameter is arterial oxygen saturation, the at least two different hemoglobin parameters are carboxyhemoglobin and methemoglobin, and the additional physiological parameter is fractional arterial oxygen saturation.

9. A method comprising:

receiving physiological signals from one or more physiological sensors,

calculating measurements of a set of physiological parameters based at least in part on the one or more physiological signals, wherein the set of physiological parameters comprises an oxygen saturation parameter and at least two different hemoglobin parameters;

deriving a value of an additional physiological parameter at least in part from the oxygen saturation parameter and the at least two different hemoglobin parameters;

causing a display of a patient monitoring system to display a default parameter indicator comprising at least some of the measurement of the set of physiological parameters;

receiving an indication that a user has activated a button on the patient monitoring system; and

in response to receiving the indication, causing, for a predetermined period of time, the display of the patient monitoring system to replace the default parameter indicator with a second parameter indicator, wherein the second parameter indicator corresponds to an indicator of: the oxygen saturation parameter, at least one of the at least two different hemoglobin parameters, or the additional physiological parameter.

10. The method of claim 9 , wherein the oxygen saturation parameter is arterial oxygen saturation.

11. The method of claim 9 , wherein at least one of the at least two different hemoglobin parameters is hemoglobin, carboxyhemoglobin, methemoglobin, methemoglobin saturation, or oxyhemoglobin.

12. The method of claim 9 , wherein at least one of the at least two different hemoglobin parameters is an estimate of an amount of hemoglobin species that are carrying carbon monoxide.

13. The method of claim 9 , wherein at least one of the at least two different hemoglobin parameters is an estimate of an amount of hemoglobin species that are not carrying oxygen.

14. The method of claim 9 , wherein the additional physiological parameter is an estimate of an amount of hemoglobin species that are carrying oxygen.

15. The method of claim 9 , wherein the additional physiological parameter is fractional arterial oxygen saturation.

16. The method of claim 9 , wherein the oxygen saturation parameter is arterial oxygen saturation, the at least two different hemoglobin parameters are carboxyhemoglobin and methemoglobin, and the additional physiological parameter is fractional arterial oxygen saturation.

17. A patient monitor, comprising:

a sensor port configured to receive physiological signals from one or more physiological sensors; and

a processor in communication with the sensor port and configured to:

calculate measurements of a set of physiological parameters based at least in part on the one or more physiological signals, wherein the set of physiological parameters comprises an oxygen saturation parameter and at least two different hemoglobin parameters;

derive a value of an additional physiological parameter at least in part from oxygen saturation parameter and the at least two different hemoglobin parameters;

cause a display of a patient monitoring system to display a default parameter indicator comprising at least some of the measurements of the set of physiological parameters;

receive an indication that a user has activated a button on the patient monitoring system; and

in response to receiving the indication, cause, for a predetermined period of time, the display of the patient monitoring system to replace the default parameter indicator with a second parameter indicator, wherein the second parameter indicator corresponds to an indicator of: the oxygen saturation parameter, at least one of the at least two different hemoglobin parameters, or the additional physiological parameter.

18. The patient monitor of claim 17 , wherein at least one of the at least two different hemoglobin parameters is hemoglobin, carboxyhemoglobin, methemoglobin, methemoglobin saturation, or oxyhemoglobin.

19. The patient monitor of claim 17 , wherein at least one of the at least two different hemoglobin parameters is an estimate of at least one of an amount of hemoglobin species that are carrying carbon monoxide or an amount of hemoglobin species that are not carrying oxygen.

20. The patient monitor of claim 17 , wherein the additional physiological parameter corresponds to an estimate of an amount of hemoglobin species that are carrying oxygen.

Assignments (3)
CHANGE OF NAME Recorded May 16, 2024
From: CERCACOR LABORATORIES, INC.
To: WILLOW LABORATORIES, INC.
Reel/Frame 067455/0298 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 25, 2020
From: AL-ALI, AMMAR; KIANI, JOE E.
To: MASIMO LABORATORIES, INC.
Reel/Frame 054469/0063 →
CHANGE OF NAME Recorded Nov 25, 2020
From: MASIMO LABORATORIES, INC.
To: CERCACOR LABORATORIES, INC.
Reel/Frame 054523/0983 →
Continuity (11)
Continuation 16366119 · Mar 27, 2019
Continuation 15138008 · Apr 25, 2016
Continuation 14557761 · Dec 2, 2014
Continuation 14076556 · Nov 11, 2013
Continuation 13412428 · Mar 5, 2012
Continuation 11366208 · Mar 1, 2006
Provisional Application 60657759 · Mar 1, 2005
Provisional Application 60657596 · Mar 1, 2005
Provisional Application 60657281 · Mar 1, 2005
Provisional Application 60657268 · Mar 1, 2005
Related Publication 20210174955A1 · Jun 10, 2021
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