NON-INVASIVE PHYSIOLOGICAL SENSOR COVER

• US 20190029580A1
• Filed: 10/02/2018
• Published: 01/31/2019
• Est. Priority Date: 07/29/2009
• Status: Active Grant

• Current Assignee: Masimo Corporation
• Original Assignee: Masimo Corporation
• Inventors: Kiani, Abraham Mazda, Kiani, Massi Joe E.
• Granted Patent: US 10,188,331 B1
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/185 Optical shielding, e.g. baffles
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02427 Details of sensor
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/6816 Ear lobe
• CPC Class Codes: A61B 5/6819 Nose
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6829 Foot or ankle
• CPC Class Codes: A61B 5/6832 using adhesives A61B5/259 takes precedence
• CPC Class Codes: A61B 5/68335 including release sheets or liners
• CPC Class Codes: A61B 5/6838 Clamps or clips

Abstract

A sensor cover according to embodiments of the disclosure is capable of being used with a non-invasive physiological sensor, such as a pulse oximetry sensor. Certain embodiments of the sensor cover reduce or eliminate false readings from the sensor when the sensor is not in use, for example, by blocking a light detecting component of a pulse oximeter sensor when the pulse oximeter sensor is active but not in use. Further, embodiments of the sensor cover can prevent damage to the sensor. Additionally, embodiments of the sensor cover prevent contamination of the sensor.

Claims

1. (canceled)

2. A partially opaque sensor cover for use with a pulse oximeter sensor, the partially opaque sensor cover comprising:

a partially opaque portion attachable to the sensor and configured to block optical readings by the sensor; and

a tab portion that protrudes from the sensor to facilitate removal of the partially opaque sensor cover,

wherein the sensor comprises;

a light source configured to emit light from one or more emitters of the sensor; and

a detector configured to receive at least a portion of the light emitted by the one or more emitters after the light has passed through a tissue site, and

wherein the partially opaque portion at least partially prevents the detector from receiving light during sensor activation.

3. The partially opaque sensor cover of claim 2, wherein the tab portion that protrudes from the sensor comprises a rectangular portion that extends past the sensor.

4. The partially opaque sensor cover of claim 2, wherein the partially opaque sensor cover is removably adhereable to the sensor.

5. The partially opaque sensor cover of claim 2, wherein the partially opaque sensor cover is configured to block the light from the one or more emitters from being received by the detector.

6. The partially opaque sensor cover of claim 2, wherein the partially opaque portion is attachable over at least one of the detector or the one or more emitters.

7. The partially opaque sensor cover of claim 2, wherein the partially opaque portion is configured to block ambient light from a surrounding area.

8. The partially opaque sensor cover of claim 2, wherein:

the sensor includes a window formed on a surface of the sensor and aligned with the one or more emitters and the detector, and

the partially opaque portion covers the window.

9. A method of blocking readings by a pulse oximeter sensor, the method comprising:

providing a removable sensor cover comprising;

a first portion attachable to the sensor, the first portion covering optical components of the sensor such that the first portion reduces the likelihood that the sensor will generate a false measurement when the sensor is active and not proximate a physiological measurement site; and

a tab portion that protrudes from the sensor to facilitate removal of the removable_—

sensor cover; and

attaching the removable sensor cover to the sensor,

wherein the optical components of the sensor comprise;

a light source configured to emit light from one or more emitters of the sensor; and

a detector configured to receive at least a portion of the light emitted by the one or more emitters after the light has passed through a tissue site.

10. The method of claim 9, wherein the tab portion that protrudes from the sensor comprises a rectangular portion that extends past the sensor.

11. The method of claim 9, wherein the first portion is removably adhereable to the sensor.

12. The method of claim 9, further comprising:

activating the light source of the sensor to emit light from the one or more emitters of the sensor; and

at least partially blocking, with the removable sensor cover, the light from the one or more emitters from being received by the detector of the sensor.

13. The method of claim 9, wherein the first portion is attachable over both of the detector and the emitters.

14. The method of claim 9, wherein the first portion is configured to block ambient light from a surrounding area.

15. The method of claim 9, wherein:

the sensor includes a window formed on a surface of the sensor and aligned with the optical components of the sensor to allow light to reach the optical components of the sensor, and

the first portion covers the window and the optical components of the sensor.

16. The method of claim 9, wherein the removable sensor cover is partially opaque.

17. A sensor cover for use with a pulse oximeter sensor, the sensor cover comprising:

a rectangular planar portion that extends beyond at least one border of a pulse oximeter sensor to provide a tab; and

an additional portion configured to cover optical components of the sensor when adhesively coupled to the sensor,

wherein the sensor cover is configured to reduce a likelihood of a false measurement by at least partially preventing light from reaching a detector of the optical components when the sensor is active but not proximate a measurement site.

18. The sensor cover of claim 17, wherein the additional portion is further configured to cover a window of the sensor that is aligned with the optical components of the sensor.

19. The sensor cover of claim 18, wherein the optical components of the sensor include at least:

one or more emitters; and

the detector configured to receive at least a portion of light emitted by the one or more emitters after the light has passed through a tissue site.

20. The sensor cover of claim 19, wherein the tab is configured to enable removal of the sensor cover from the sensor.

21. The sensor cover of claim 20, wherein the rectangular planar portion and the additional portion together comprise a single integral component.

22. The sensor cover of claim 21, wherein the sensor cover is partially opaque.

23. The sensor cover of claim 17, wherein the light comprises ambient light.

24. The sensor cover of claim 17, wherein the light comprises light emitted by one or more emitters of the optical components.