Using colored probes in patient monitoring

• US 9,826,905 B2
• Filed: 05/07/2009
• Issued: 11/28/2017
• Est. Priority Date: 05/07/2009
• Status: Active Grant

• Current Assignee: Nellcor Puritan Bennett Ireland
• Original Assignee: Nellcor Puritan Bennett Ireland
• Inventors: Addison, Paul Stanley, Watson, James, Sethi, Rakesh
• Primary Examiner(s): Agahi, Puya
• Application Number:
  US12/437,296
• Publication Number:
  US 20100286494A1
• Time in Patent Office: 3,127 Days
• Field of Search: 600310, 600322-328, 600431, 600476, 600483, 600500-505
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/726 using Wavelet transforms

Abstract

The present disclosure provides a sensor with color-coded indications that various patient physiological parameters are being monitored, such as blood oxygen saturation, blood pressure, respiration rate, and respiration effort. The sensor may sense a physical characteristic used to monitor the physiological parameter, and a visible light emitter emits visible light of a first color that is color-coded to the physiological parameter, but is not used to sense the physical characteristic. The visible light emitter may emit visibly flashing light in response to the sensor sensing a threshold value of the physical characteristic. The sensor may include a second light emitter that may sense the physical characteristic, and may emit light of a second color that is color-coded to a first or second physiological parameter. In some embodiments, the first and second colors may visibly mix. The first and second visible light emitters may emit light independently, including visibly flashing light.

Claims

1. A sensor for sensing physical characteristics of a patient, the sensor comprising:

a support structure; and

a sensor component coupled to the support structure for sensing a physical characteristic of the patient, wherein the sensor component is configured to;

generate a physiological signal indicative of the physical characteristic;

transmit the physiological signal to a monitor external to the sensor, wherein the physiological signal is capable of being used by the external monitor to monitor first and second physiological parameters;

receive a first drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the first physiological parameter; and

receive a second drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the second physiological parameter, the sensor component comprising;

an infrared light emitter, wherein the infrared light is used to sense the physical characteristic;

a detector for detecting the infrared light after it passes within the tissue of the patient;

a first visible light emitter that emits visible light of a first color, wherein;

the first visible light emitter is not used to sense the physical characteristic;

the first color is color-coded to the first physiological parameter; and

the first visible light emitter emits visible light in response to the sensor component receiving the first drive signal indicating when the external monitor is using the physiological signal to monitor the first physiological parameter; and

a second visible light emitter that emits visible light of a second color, wherein;

the second visible light emitter is not used to sense the physical characteristic;

the second color is color-coded to the second physiological parameter; and

the second visible light emitter emits visible light in response to the sensor component receiving the second drive signal indicating when the external monitor is using the physiological signal to monitor the second physiological parameter.

2. The sensor of claim 1 wherein the first physiological parameter comprises blood pressure, respiration rate, and/or respiration effort.

3. The sensor of claim 1 wherein the first visible light emitter emits visibly flashing light when the external monitor determines that the physical characteristic sensed by the sensor component for the first physiological parameter has reached a threshold.

4. The sensor of claim 1 wherein the first and second colors mix to appear as a third color that is color-coded to the first physiological parameter and the second physiological parameter.

5. The sensor of claim 4 wherein the third color appears to visibly flash when the external monitor determines that the physical characteristic sensed by the sensor component for the first physiological parameter and the second physiological parameter has reached a threshold.

6. The sensor of claim 1 wherein the second visible light emitter emits visibly flashing light when the external monitor determines that the physical characteristic sensed by the sensor component for the second physiological parameter has reached a threshold.

7. The sensor of claim 1 wherein the second visible light emitter emits light independently of the light emitted by the first visible light emitter.

8. The sensor of claim 1 wherein:

the sensor component further comprises a third light emitter, wherein;

the light emitted by the third light emitter is used to sense the first physical characteristic and/or a second physical characteristic used to monitor the first physiological parameter and/or the second physiological parameter; and

the light emitted by the third light emitter is of a frequency that is different than the frequency of the visible light of a first color; and

the detector detects the light emitted by the third light emitter after it passes within the tissue of the patient.

9. A method for visibly indicating the monitoring of a first physiological parameter of a patient and a second physiological parameter of the patient, the method comprising:

sensing a first physical characteristic with a sensor that comprises a support structure and a sensor component coupled to the support structure, wherein the sensor component comprises an infrared light emitter, a detector, a first visible light emitter, and a second visible light emitter, and further wherein;

the infrared light is used to sense the first physical characteristic; and

the detector is used to detect the infrared light after it passes within the tissue of the patient;

generating a physiological signal indicative of the first physical characteristic;

transmitting the physiological signal to a monitor external to the sensor, wherein the physiological signal is capable of being used by the external monitor to monitor the first and second physiological parameters;

receiving a first drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the first physiological parameter;

receiving a second drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the second physiological parameter;

visibly indicating the monitoring of the first physiological parameter by the external monitor with the first visible light emitter that emits visible light of a first color in response to receiving the first drive signal indicating when the external monitor is using the physiological signal to monitor the first physiological parameter, wherein;

the first visible light emitter is not used to sense the first physical characteristic; and

the first color is color-coded to the first physiological parameter; and

visibly indicating the monitoring of the second physiological parameter by the external monitor with the second visible light emitter that emits visible light of a second color in response to receiving the second drive signal indicating when the external monitor is using the physiological signal to monitor the second physiological parameter, wherein;

the second visible light emitter is not used to sense the second physical characteristic; and

the second color is color-coded to the second physiological parameter.

10. The method of claim 9 further comprising visibly flashing the first visible light emitter in response to the sensor component sensing a threshold value of the first physical characteristic.

11. The method of claim 9 wherein the monitoring of the first and second physiological parameters is indicated by a visible combination of the first and second colors.

12. The method of claim 9 further comprising:

visibly flashing the first visible light emitter in response to the sensor component sensing a threshold value of the first physical characteristic; and

visibly flashing the second visible light emitter in response to the sensor component sensing a threshold value of the first physical characteristic and/or the second physical characteristic, wherein the first visible light emitter visibly flashes independently of the second visible light emitter.

13. A computer-readable medium for use in visibly indicating the monitoring of a first physiological parameter and a second physiological parameter, the computer-readable medium having computer program instructions recorded thereon for:

sensing a physical characteristic with a sensor that comprises a support structure and a sensor component coupled to the support structure, wherein the sensor component comprises an infrared light emitter, a detector, a first visible light emitter, and a second visible light emitter, and further wherein;

the infrared light is used to sense the physical characteristic; and

the detector is used to detect the infrared light after it passes within the tissue of the patient;

generating a physiological signal indicative of the physical characteristic;

transmitting the physiological signal to a monitor external to the sensor, wherein the physiological signal is capable of being used by the external monitor to monitor the first and second physiological parameters;

receiving a first drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the first physiological parameter;

receiving a second drive signal from the external monitor indicating when the external monitor is using the physiological signal to monitor the second physiological parameter;

visibly indicating the monitoring of the first physiological parameter by the external monitor with the first visible light emitter that emits visible light of a first color in response to receiving the first drive signal indicating when the external monitor is using the physiological signal to monitor the first physiological parameter, wherein;

the first visible light emitter is not used to sense the physical characteristic; and

the first color is color-coded to the first physiological parameter; and

visibly indicating the monitoring of the second physiological parameter by the external monitor with the second visible light emitter that emits visible light of a second color in response to receiving the second drive signal indicating when the external monitor is using the physiological signal to monitor the second physiological parameter, wherein;

the second visible light emitter is not used to sense the second physical characteristic; and

the second color is color-coded to the second physiological parameter.