Devices, Systems And Methods For Plethysmographic Monitoring At The Nose

• US 20140180026A1
• Filed: 12/05/2013
• Published: 06/26/2014
• Est. Priority Date: 06/20/2002
• Status: Active Grant

• Current Assignee: Beta Biomed Services, Inc., University of Florida Research Foundation, Incorporated (State University System of Florida)
• Original Assignee: Beta Biomed Services, Inc., University of Florida Research Foundation, Incorporated (State University System of Florida)
• Inventors: Melker, Richard J., Worley, George, Gravenstein, Joachim
• Granted Patent: US 9,668,661 B2
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 2560/0276 Determining malfunction
• CPC Class Codes: A61B 2562/247 Hygienic covers, i.e. for covering the sensor or apparatus during use
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• 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 5/0261 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 5/036 by means introduced into body tracts A61B5/032 and A61B5/035 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 5/0836 Measuring rate of CO2 production
• CPC Class Codes: A61B 5/087 Measuring breath flow
• CPC Class Codes: A61B 5/0873 using optical means
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor
• CPC Class Codes: A61B 5/4818 Sleep apnoea
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 5/6819 Nose
• CPC Class Codes: A61B 5/682 Mouth, e.g., oral cavity; tongue; Lips; Teeth
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: A61B 5/6829 Foot or ankle
• CPC Class Codes: A61B 5/7278 : Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/7282 : Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• CPC Class Codes: A61M 16/0003 : Accessories therefor, e.g. sensors, vibrators, negative pressure
• CPC Class Codes: A61M 16/0051 : with alarm devices
• CPC Class Codes: A61M 16/0057 : Pumps therefor
• CPC Class Codes: A61M 16/021 : operated by electrical means A61M16/202 – A61M16/205 take precedence
• CPC Class Codes: A61M 16/0666 : Nasal cannulas or tubing devices for improving normal breathing through the nose A61F5/08; nose filters A62B23/06; outside holding devices A61M25/02
• CPC Class Codes: A61M 16/0672 : Nasal cannula assemblies for oxygen therapy
• CPC Class Codes: A61M 16/08 : Bellows; Connecting tubes having means for taking samples G01N1/22; Water traps; Patient circuits
• CPC Class Codes: A61M 16/085 : Gas sampling
• CPC Class Codes: A61M 16/20 : Valves specially adapted to medical respiratory devices
• CPC Class Codes: A61M 2202/0007 : introduced into the body
• CPC Class Codes: A61M 2202/0208 : Oxygen
• CPC Class Codes: A61M 2202/03 : Gases in liquid phase, e.g. cryogenic liquids
• CPC Class Codes: A61M 2205/3561 : local, e.g. within room or hospital
• CPC Class Codes: A61M 2205/3569 : sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2210/0618 : Nose
• CPC Class Codes: A61M 2210/0625 : Mouth
• CPC Class Codes: A61M 2210/0662 : Ears
• CPC Class Codes: A61M 2230/005 : Parameter used as control input for the apparatus
• CPC Class Codes: A61M 2230/06 : Heartbeat rate only
• CPC Class Codes: A61M 2230/205 : partial oxygen pressure (P-O2)
• CPC Class Codes: A61M 2230/30 : Blood pressure A61M2230/04 takes precedence
• CPC Class Codes: A61M 2230/42 : Rate
• CPC Class Codes: A61M 2230/432 : partial CO2 pressure (P-CO2)

Abstract

The present invention relates to novel lip/cheek probes for detection of pulse-based differences in light absorbence across the vascularized tissue of a lip or cheek of a patient. These probes are fabricated to provide signals to estimate arterial oxygen saturation, and/or to obtain other photoplethysmographic data. The present invention also relates to a combined probe/cannula. The present invention also relates to other devices that combine a pulse oximeter probe with a device supplying oxygen or other oxygen-containing gas to a person in need thereof, and to sampling means for exhaled carbon dioxide in combination with the novel lip/cheek probes. In certain embodiments, an additional limitation of a control means to adjust the flow rate of such gas is provided, where such control is directed by the blood oxygen saturation data obtained from the pulse oximeter probe.

Claims

1. A device configured to secure to a nose that comprises:

1) a pulse oximetry probe; and

     2) another sensor for monitoring at the nose.

2. The device of claim 1, wherein the other sensor for monitoring at the nose detects air flow, air pressure, or both.

3. The device of claim 1, further comprising a sampling structure to direct exhaled gas to a capnometer, a capnograph, or both.

4. The device of claim 1, further comprising a cannula integrally combined with the device.

5. A system for monitoring an individual, comprising:

a device configured to secure to a nose that comprises;

     1) a pulse oximetry probe; and

     2) another sensor for monitoring at the nose.

6. The system of claim 5, wherein the system is configured to analyze data from the pulse oximeter with data from the other sensor for monitoring at the nose.

7. The system of claim 5, wherein the other sensor for monitoring at the nose detects air flow, air pressure, or both.

8. The system of claim 7, wherein the system is configured to analyze data from the pulse oximeter with data from the sensor that detects air flow, air pressure, or both.

9. The system of claim 5, further comprising a supply of oxygen or oxygen-rich gas.

10. The system of claim 9, wherein the supply of oxygen or oxygen-rich gas comprises a cannula that is integrally combined with the device.

11. The system of claim 9, wherein the system is configured to increase or decrease the supply of oxygen or oxygen-rich gas to the individual based on data from the device.

12. The system of claim 5, wherein the system is configured to determine respiratory rate.

13. The system of claim 5, wherein the system is configured to evaluate changes in the envelope of a photoplethymograph from the pulse oximetry probe.

14. The system of claim 5, wherein the system is configured to monitor data from the device to analyze the individual for a sleep disorder.

15. The system of claim 5, further comprising a sampling device for capnometry.

16. A method of monitoring an individual, comprising:

(a) securing onto the individual a device configured to secure to a nose that comprises;

     1) a pulse oximetry probe; and

     2) another sensor for monitoring at the nose;

(b) collecting data from the pulse oximeter probe and the other sensor for monitoring at the nose; and

(c) analyzing with a processor the data from the pulse oximeter probe and the other sensor.

17. The method of claim 16, wherein the data is analyzed to monitor respiration of the individual.

18. The method of claim 16, wherein the other sensor for monitoring at the nose detects air flow, air pressure, or both.

19. The method of claim 16, further comprising sampling breath of the individual and obtaining end tidal carbon dioxide measurements.

20. The method of claim 16, further comprising (d) increasing or decreasing a supply of oxygen to the individual based on the analysis of the data from the pulse oximeter probe and the other sensor.