SP02 TONE MODULATION WITH AUDIBLE LOWER CLAMP VALUE

• US 20160106379A1
• Filed: 06/13/2014
• Published: 04/21/2016
• Est. Priority Date: 06/24/2013
• Status: Active Grant

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: GREINER, Harald, MEIER, Wilhelm, ENSLIN, Frank, NEUMANN, Rolf
• Granted Patent: US 10,687,763 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 5/14542 for measuring blood gases A61B5/14551 takes precedence
• CPC Class Codes: A61B 5/7415 Sound rendering of measured values, e.g. by pitch or volume variation A61B5/741 takes precedence

Abstract

A patient monitor device includes one or more sensors which measure physiological parameters of a patient, a controller which controls an audio source to generate an audible tone and adjust the pitch of the audible tone to indicate the measured physiological parameter according to a mapping scheme, the audio source which generates the audio tone, and an audio output device which outputs the audible tone. The mapping scheme clamping a frequency of the audible tone after reaching a predetermined threshold.

Claims

1. A patient monitoring device, the device comprising:

one or more sensors which measure physiological parameters of a patient;

a controller which controls an audio source to generate an audible tone and adjust the pitch of the audible tone to indicate the measured physiological parameter according to a mapping scheme;

the audio source which generates the audio tone;

an audio output device which outputs the audible tone;

wherein the mapping scheme clamps a frequency of the audible tone after reaching a predetermined threshold;

wherein the controller steps the frequency of the audible tone in full-tone or half-tone increments based on the blood oxygen concentration; and

wherein for each one percent change in the blood oxygen concentration the frequency is changed by a half-tone or a full-tone.

2. The device according to claim 1, wherein the audio tone includes a short audible tone for each characteristic point in a cardiac cycle and the pitch indicates blood oxygen concentration

5. The device according to claim 1 wherein the predetermined threshold is two octaves below the peak frequency.

6. The device according to claim 1, wherein the controller modifies the audible tone after reaching the predetermined threshold.

7. The device according to claim 1, wherein the controller transposes the audible frequency based on a type of audio output device.

3. (canceled)

4. (canceled)

8. A method for tone modulation with an audible lower clamp value, the method comprising:

measuring physiological parameters of a patient with one or more sensors;

generating an audible tone and adjusting the pitch of the audible tone to indicate the measured physiological parameter according to a mapping scheme;

wherein the mapping scheme clamps a frequency of the audible tone after reaching a predetermined threshold;

stepping the frequency of the audible tone in full-tone or half-tone increments based on the blood oxygen concentration;

wherein for each one percent change in the blood oxygen concentration the frequency is changed by a half-tone or a full-tone.

9. The method according to claim 8, wherein the audio tone includes a short audible tone for each characteristic point in a cardiac cycle and the pitch indicates blood oxygen concentration

12. The method according to claim 8, wherein the predetermined threshold is two octaves below the peak frequency.

13. The method according to claim 8, further including:

modifying the audible tone after reaching the predetermined threshold.

14. The method according to claim 8, further including:

transposing the audible frequency based on a type of audio output device.

10. (canceled)

11. (canceled)

15. A method for monitoring patients, the method comprising:

outputting a first audible tone from a first patient monitor with a first audio output device;

outputting a second audible tone from a second patient monitor with a second audio output device, the second audio output device having a different audio characteristics than the first audio output device; and

transposing the first and second audible tones such that the audible tone being produced matches the audio characteristics of the audio output device.

16. The method according to claim 15, wherein the audio characteristics include a frequency limitation.