# US 2018/0322950 A1 · Pulse oximeter and environment controller

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- Number: US 2018/0322950 A1
- Document ID: US20180322950A1
- Status: Published application
- Kind: A1
- Application number: 15/776,136
- Filed: 2016-11-20
- Published: 2018-11-08
- Earliest claimed: 2015-11-23
- Assignees: Koninklijke Philips N.V.
- Applicants: Koninklijke Philips N.V.
- Inventors: John CRONIN; Michael D'ANDREA
- Web page: https://patentgrep.com/patent/US20180322950A1

## CPC

- G16H 40/63: for local operation
- A61B 5/0008: {Temperature signals}
- A61B 5/0024: {for multiple sensor units attached to the patient, e.g. using a body or personal area network}
- A61B 5/0215: by means inserted into the body
- A61B 5/026: Measuring blood flow {(A61B3/1233, A61B3/1241 take precedence)}
- A61B 5/14551: {for measuring blood gases}
- A61B 5/14552: {Details of sensors specially adapted therefor}
- A61B 5/4833: {Assessment of subject's compliance to treatment}
- A61B 5/6851: {Guide wires}
- A61B 5/7207: {of noise induced by motion artifacts}
- A61B 5/7246: {using correlation, e.g. template matching or determination of similarity}
- A61B 5/746: {Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms}
- A61B 8/4444: {related to the probe}
- A61M 25/09: Guide wires
- G05B 19/042: using digital processors (G05B19/05 takes precedence)
- A61B 5/036: {by means introduced into body tracts (A61B5/032 and A61B5/035 take precedence)}
- A61B 2560/0242: adapted to measure environmental factors, e.g. temperature, pollution
- A61B 2560/0247: for compensation or correction of the measured physiological value
- A61B 2560/0252: using ambient temperature
- A61M 2025/09166: {having radio-opaque features}
- G05B 2219/2614: HVAC, heating, ventillation, climate control
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

A method for controlling environmental parameters of a patient environment. The method comprises: acquiring physiological sensor data using at least one physiological sensor in a pulse oximeter; acquiring environmental sensor data corresponding to at least one environmental parameter via at least one environmental sensor; determining by an environment controller if the acquired environmental sensor data satisfy at least one alert criterion; adjusting by the pulse oximeter the physiological sensor data to correct for the effects of the at least one environmental parameter if the acquired at least one environmental sensor data satisfies the at least one alert criterion; determining if an environment controller is capable of adjusting the at least one environmental parameter; adjusting the at least one environmental parameter if the environment controller is capable of adjusting the at least one environmental parameter; correlating the at least physiological sensor data and the at least one environmental sensor data to obtain a correlation data; and updating the at least one alert criterion based on the obtained correlation data.

## Claims

### Claim 1

A method for controlling environmental parameters of a patient environment, the method comprising:
monitoring physiological sensor data using at least one physiological sensor in a pulse oximeter;
monitoring environmental sensor data corresponding to at least one environmental parameter via at least one environmental sensor, the at least one environmental parameter including temperature, ambient noise, presence of smoke, and excessive patient movement;
identifying by an environment controller that the monitored environmental sensor data satisfies at least one alert criterion, the alert criterion including a corresponding threshold range for the at least one environmental parameter;
adjusting by the pulse oximeter the physiological sensor data to correct for effects of the at least one environmental parameter based on the environmental sensor data satisfying the at least one alert criterion when the at least one environmental parameter is outside of the corresponding threshold range;
determining if an environment controller is capable of adjusting the at least one environmental parameter;
adjusting the at least one environmental parameter if the environment controller is capable of adjusting the at least one environmental parameter;
correlating the physiological sensor data and the environmental sensor data to obtain a correlation data; and
updating the at least one alert criterion based on the obtained correlation data.

### Claim 2 (depends on 1)

The method of claim 1, wherein the at least one alert criterion is based on a compliance and noncompliance with a treatment plan.

### Claim 3 (depends on 1)

The method of claim 1, further comprising determining a patient context based on the obtained correlation data.

### Claim 4 (depends on 1)

The method of claim 1, wherein correlating the physiological sensor data and the environmental sensor data comprises performing a simple linear regression.

### Claim 5 (depends on 1)

method of claim 1, wherein the correlation data is at least one of an R-squared number, Pearson correlation coefficient, rank correlation coefficient, or a score that indicates a level to which two or more datasets are correlated.

### Claim 6 (depends on 1)

The method of claim 1, wherein the alert criterion indicates one or more conditions for at least one physiological or environmental sensor.

### Claim 7 (depends on 6)

The method of claim 6, wherein the conditions include a minimum threshold value or a maximum threshold value.

### Claim 8

A system for controlling environmental parameters in a patient's environment, the system comprising:
a pulse oximeter having a first communication module and at least one physiological sensor;
an environment controller having a second communication module and at least one environmental sensor, wherein the environment controller is configured to control at least one environment system, the at least one environmental sensor being configured to measure at least one environmental parameter including temperature, ambient noise, presence of smoke, and excessive patient movement; and
at least one memory unit comprising a first software for obtaining at least one correlation data between at least one physiological sensor data and at least one environmental sensor data and a second software for adjusting at least one physiological sensor data based on the obtained at least one correlation data, wherein the at least one memory unit is included in at least one of the pulse oximeter and the environment controller;
wherein the environment controller is configured to determine that the environmental sensor data satisfies at least one alert criterion, the alert criterion including a corresponding threshold range for the at least one environmental parameter; and
the adjusting operation includes adjusting the physiological sensor data to correct for effects of the at least one environmental parameter based on the environmental sensor data satisfying the at least one alert criterion when the at least one environmental parameter is outside of the corresponding threshold range.

### Claim 9 (depends on 8)

The system of claim 8, wherein the at least one alert criterion is based on a compliance and noncompliance with a treatment plan.

### Claim 10 (depends on 8)

The system of claim 8, further comprising a processor that executes instructions stored in memory to determine a patient context based on the obtained correlation data.

### Claim 11 (depends on 8)

The system of claim 8, further comprising a processor that executes instructions stored in memory to correlate the physiological sensor data and the environmental sensor data by performing a simple linear regression.

### Claim 12 (depends on 8)

The system of claim 8, wherein the correlation data is at least one of an R-squared number, Pearson correlation coefficient, rank correlation coefficient, or a score that indicates a level to which two or more datasets are correlated.

### Claim 13 (depends on 8)

The system of claim 8, wherein the alert criterion indicates one or more conditions for at least one physiological or environmental sensor.

### Claim 14 (depends on 13)

The system of claim 13, wherein the conditions include a minimum threshold value or a maximum threshold value.

### Claim 15 (depends on 1)

A non-transitory computer-readable storage medium, having embodied thereon a program executable by a processor to perform the method of claim 1.