NOVEL PULSE OXIMETER PROBES AND METHODS FOR USING THE SAME

• US 20140243631A1
• Filed: 03/03/2014
• Published: 08/28/2014
• Est. Priority Date: 08/11/2004
• Status: Active Grant

• Current Assignee: University of Florida Research Foundation, Incorporated (State University System of Florida)
• Original Assignee: University of Florida Research Foundation, Incorporated (State University System of Florida)
• Inventors: Melker, Richard J.
• Granted Patent: US 9,668,695 B2
• Time in Patent Office: Days
• US Class Current: 600/324
• CPC Class Codes: A61B 2503/22 Motor vehicles operators, e.g. drivers, pilots, captains
• CPC Class Codes: A61B 2505/09 Rehabilitation or training
• CPC Class Codes: A61B 2562/0238 Optical sensor arrangements for performing transmission measurements on body tissue
• CPC Class Codes: A61B 5/0261 using optical means, e.g. infrared light
• CPC Class Codes: A61B 5/0295 using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/14553 specially adapted for cerebral tissue
• CPC Class Codes: A61B 5/6816 Ear lobe
• CPC Class Codes: A61B 5/6817 Ear canal
• CPC Class Codes: A61B 5/6819 Nose

Abstract

Provided according to embodiments of the invention are photoplethysmography probes designed for use on a user'"'"'s nasal alar. Methods of using such photoplethysmography probes are also provided herein.

Claims

1. A photoplethysmography probe designed for use on a user'"'"'s nasal alar comprising:

an elongated base configured for positioning along the user'"'"'s nasal ridge, the elongated base comprising a proximal end and a distal end;

a bridge attached to or integral with the proximal end of the elongated base, the bridge having a right end portion and a left end portion;

a right flap extending from the right end portion of the bridge;

a left flap extending from the left end portion of the bridge;

at least one LED attached to or integrated with either the right flap or the left flap, or both; and

at least one wing fold extending down from either the right flap or the left flap, or both, the at least one wing fold comprising at least one photodetector attached thereto or integrated therewith and designed for insertion into the user'"'"'s right or left nostril such that the at least one photodetector is aligned across from the at least one LED.

2. The photoplethysmography probe of claim 1, comprising

a first wing fold extending down from either the right flap or the left flap, the first wing fold comprising at least one photodetector attached thereto or integrated therewith and designed for insertion into the user'"'"'s right or left nostril;

and

a second wing fold extending down from either the right flap or the left flap, whichever the first flap is not extending down from, and designed for insertion into the user'"'"'s right or left nostril.

3. The photoplethysmography probe of claim 1, further comprising a connector attached to or integrated with the proximal end of the elongated base, the connector configured for attachment and electrical communication with a corresponding receptacle.

4. The photoplethysmography probe of claim 1, wherein an LED is disposed on both the right flap and the left flap, and the probe comprises a first wing fold extending down from the right flap and a second wing fold extending down from said left flap, wherein both the first wing fold and the second wing fold comprise at least one photodetector attached thereto or integrated therewith.

5. The photoplethysmography probe of claim 1, wherein the first wing fold and the second wing fold are sufficiently rigid so as to hold their shape upon insertion into the user'"'"'s nostrils.

6. The photoplethysmography probe of claim 1, wherein a flex circuit may be attached to or integrated with the probe so as to provide wiring to the LED and photodetector.

7. The photoplethysmography probe of claim 1, wherein the probe is configured such that the at least one LED is positioned over the user'"'"'s nasal alar.

8. The photoplethysmography probe of claim 7, wherein the probe is configured such that the at least one LED is positioned behind the fibro-areolar tissue.

9. A method for obtaining photoplethysmography measurements at the nasal alar, comprising

securing a photoplethysmography probe onto a user'"'"'s nasal alar and obtaining photoplethysmography signals,

wherein the photoplethysmography probe comprises

an elongated base that is positioned on the user'"'"'s nasal ridge, the elongated base comprising a proximal end and a distal end;

a bridge attached to or integral with the proximal end of the elongated base, the bridge having a right end portion and a left end portion;

a right flap extending from the right end portion of the bridge;

a left flap extending from the left end portion of the bridge;

at least one LED attached to or integrated with either the right flap or the left flap, or both; and

at least one wing fold extending down from either the right flap or the left flap, or both, the at least one wing fold comprising at least one photodetector attached thereto or integrated therewith, and

wherein the at least one wing fold is inserted into the user'"'"'s right or left nostril such that the at least one photodetector is aligned across from the at least one LED.

10. The method of claim 9, wherein the photoplethysmography probe comprises

a first wing fold extending down from either the right flap or the left flap, the first wing fold comprising at least one photodetector attached thereto or integrated therewith and inserted into the user'"'"'s right or left nostril;

and

a second wing fold extending down from either the right flap or the left flap, whichever the first flap is not extending down from, and inserted into the user'"'"'s right or left nostril.

11. The method of claim 9, further comprising a connector attached to or integrated with the proximal end of the elongated base, the connector being in electrical communication with a corresponding receptacle.

12. The method of claim 9, wherein an LED is disposed on both the right flap and the left flap, and the probe comprises a first wing fold extending down from the right flap and a second wing fold extending down from said left flap, wherein both the first wing fold and the second wing fold comprise at least one photodetector attached thereto or integrated therewith.

13. The method of claim 9, wherein the first wing fold and the second wing fold are sufficiently rigid so as to hold their shape while in the user'"'"'s nostrils.

14. The method of claim 9, wherein a flex circuit may be attached to or integrated with the probe so as to provide wiring to the LED and photodetector.

15. The method of claim 9, wherein the at least one LED is positioned over the user'"'"'s nasal alar.

16. The method of claim 15, wherein the at least one LED is positioned behind the fibro-areolar tissue.