Nose sensor

• US 10,537,285 B2
• Filed: 03/06/2017
• Issued: 01/21/2020
• Est. Priority Date: 03/04/2016
• Status: Active Grant

• Current Assignee: Masimo Corporation
• Original Assignee: Masimo Corporation
• Inventors: Shreim, Samir, Sharma, Vikrant, Perea, Philip, Rines, Jennifer, Robins, Clinton, Eichele, Chad, Abdul-Hafiz, Yassir Kamel
• Primary Examiner(s): Winakur, Eric F
• Assistant Examiner(s): Liu, Chu Chuan
• Application Number:
  US15/451,288
• Publication Number:
  US 20170251975A1
• Time in Patent Office: 1,051 Days
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• CPC Class Codes: A61B 2562/04 Arrangements of multiple sensors of the same type
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• 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 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• 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 5/02427 Details of sensor
• CPC Class Codes: A61B 5/087 Measuring breath flow
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6819 Nose
• CPC Class Codes: A61B 5/6825 Hand
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/6838 Clamps or clips
• CPC Class Codes: A61B 5/7405 using sound
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B

Abstract

A patient monitor can noninvasively measure a physiological parameter using sensor data from a nose sensor configured to be secured to a nose of the patient. The nose sensor can include an emitter and a diffuser. The diffuser is configured to generate a signal when detecting light attenuated by the nose tissue of the patient. An output measurement of the physiological parameter can be determined based on the signals generated by the diffuser.

Claims

1. A noninvasive physiological monitoring device configured to be secured to a nose of a patient, the device comprising:

an upper sensor body;

a lower sensor body;

an emitter configured to be secured to a wall of an alar region of the nose of the patient; and

a joint configured to rotatably couple the upper sensor body to the lower sensor body, the joint including;

an upper joint comprising a slot, wherein the upper joint extends from the upper sensor body towards the lower sensor body;

a first lower joint comprising a first hole, wherein the first lower joint is proximate a first side of the lower sensor body, and wherein the first lower joint extends from the lower sensor body towards the upper sensor body;

a second lower joint comprising a second hole, wherein the second lower joint is proximate a second side of the lower sensor body, and wherein the second lower joint extends from the lower sensor body towards the upper sensor body; and

a pin configured to extend through at least a portion of the slot of the upper joint and the first hole of the first lower joint and the second hole of the second lower joint and configured to allow the upper sensor body to rotate about a first transverse axis extending through the pin,

wherein the upper joint is positioned between the first lower joint and the second lower joint,

wherein the slot of the upper joint allows the upper sensor body to at least partially rotate about a longitudinal axis extending along a longest dimension of the device,

wherein the joint prevents the upper sensor body from rotating about a second transverse axis extending along a height of the device, the second transverse axis being perpendicular to the first transverse axis and the longitudinal axis, and

wherein the first transverse axis is perpendicular to the longitudinal axis.

2. The noninvasive physiological monitoring device of claim 1, wherein the device further comprises a biasing member coupled to a rear portion of the upper sensor body and a rear portion of the lower sensor body.

3. The noninvasive physiological monitoring device of claim 1, wherein a front portion of the upper sensor body is approximately parallel to a front portion of the lower sensor body in a neutral position.

4. The noninvasive physiological monitoring device of claim 1, wherein the slot of the upper joint allows the upper sensor body to translate vertically along a length of the slot relative to the lower sensor body.

5. The noninvasive physiological monitoring device of claim 1, further comprising a detector, wherein the detector has an interface output responsive to light emitted by the emitter and transmitted through tissue of the nose of the patient, wherein the detector generates a signal output.

6. The noninvasive physiological monitoring device of claim 5, further comprising a signal processor in communication with the interface output of the detector, the signal processor configured to generate a measurement of physiological parameters based on the signal output generated by the detector.

7. The noninvasive physiological monitoring device of claim 1, wherein the lower sensor body includes a rear portion and a front portion, wherein the rear portion of the lower sensor body is positioned closer to the upper sensor body than the front portion of the lower sensor body.

8. The noninvasive physiological monitoring device of claim 1, wherein the lower sensor body includes a rear portion, a front portion, and an intermediate portion transitioning between the rear portion and the front portion, wherein the intermediate portion is curved to conform to a shape of the nose of the patient.

9. The noninvasive physiological monitoring device of claim 1, wherein the lower sensor body includes a rear portion, a front portion, and an intermediate portion transitioning between the rear portion and the front portion, wherein the intermediate portion is inclined relative to the front portion to conform to a shape of the nose of the patient.

10. The noninvasive physiological monitoring device of claim 1, wherein the lower sensor body includes a rear portion that is angled away from the upper sensor body.

11. The noninvasive physiological monitoring device of claim 1, wherein the upper sensor body is generally parallel to the longitudinal axis of the device.

12. A method of calculating a measurement of a physiological parameter of a patient, comprising:

transmitting light, by an emitter of a physiological sensor, of at least first and second wavelengths through tissue of the patient;

determining the measurement of the physiological parameter, by the physiological sensor,

wherein the physiological sensor includes;

an upper sensor body;

a lower sensor body;

a joint configured to rotatably couple the upper sensor body to the lower sensor body, the joint including;

an upper joint comprising a slot, wherein the upper joint extends from the upper sensor body towards the lower sensor body;

a first lower joint comprising a first hole, wherein the first lower joint is proximate a first side of the lower sensor body, and wherein the first lower joint extends from the lower sensor body towards the upper sensor body;

a second lower joint comprising a second hole, wherein the second lower joint is proximate a second side of the lower sensor body, and wherein the second lower joint extends from the lower sensor body towards the upper sensor body; and

a pin configured to extend through at least a portion of the slot of the upper joint and the first hole of the first lower joint and the second hole of the second lower joint and configured to allow the upper sensor body to rotate about a first transverse axis extending through the pin;

wherein the slot of the upper joint allows the upper sensor body to at least partially rotate about a longitudinal axis extending along a longest dimension of the device,

wherein the joint prevents the upper sensor body from rotating about a second transverse axis extending along a height of the device, the second transverse axis being perpendicular to the first transverse axis and the longitudinal axis, and

wherein the first transverse axis is perpendicular to the longitudinal axis.

13. The method of claim 12, further comprising:

detecting, by a detector of the physiological sensor, light attenuated by tissue of a nose of the patient; and

generating an output signal, by the physiological sensor, based on the light detected at the nose of the patient.

14. The method of claim 13, wherein the detector is positioned within a recess of the upper sensor body.

15. The method of claim 12, wherein the physiological sensor further comprises a biasing member coupled to a rear portion of the upper sensor body and a rear portion of the lower sensor body.

16. The method of claim 12, wherein the slot of the upper joint allows the upper sensor body to translate vertically along a length of the slot relative to the lower sensor body.

17. The method of claim 12, wherein the lower sensor body includes a rear portion and a front portion, wherein the rear portion of the lower sensor body is positioned closer to the upper sensor body than the front portion of the lower sensor body.

18. The method of claim 12, wherein the lower sensor body includes a rear portion, a front portion, and an intermediate portion transitioning between the rear portion and the front portion, wherein the intermediate portion is curved to conform to a shape of a nose of the patient.

19. A noninvasive physiological monitoring device configured to be secured to a nose of a patient, the device comprising:

an upper sensor body and a lower sensor body;

an emitter configured to transmit light of one or more wavelengths into tissue of the nose of the patient; and

a joint comprising;

an upper joint extending from the upper sensor body towards the lower sensor body, the upper joint comprising a slot having a slot length;

a first lower joint extending from the lower sensor body towards the upper sensor body, the first lower joint comprising a first hole;

a second lower joint extending from the lower sensor body towards the upper sensor body, the second lower joint comprising a second hole;

a pin configured to rotatably couple the upper joint and the first and second lower joints, the pin further configured to extend through at least a portion of the slot of the upper joint and the first and second holes of the first and second lower joints and configured to allow at least one of the upper sensor body or the lower sensor body to rotate about a first transverse axis extending through the pin;

wherein the upper joint is positioned between the first and second lower joints when rotatably coupled with the pin to allow the upper sensor body to at least partially rotate about a longitudinal axis extending along a length of the device, the longitudinal axis being perpendicular to the first transverse axis,

wherein the joint prevents the upper sensor body from rotating about a second transverse axis extending along a height of the device, the second transverse axis being perpendicular to the first transverse axis and the longitudinal axis.