Device and method for treating obstructed breathing having a delay/ramp feature

• US 5,522,382 A
• Filed: 01/10/1995
• Issued: 06/04/1996
• Est. Priority Date: 06/26/1987
• Status: Expired due to Term

• Current Assignee: Resmed Limited (ResMed Incorporated)
• Original Assignee: Rescare Limited
• Inventors: Sullivan, Colin E., Lynch, Christopher
• Primary Examiner(s): Asher, Kimberly L.
• Application Number:
  US08/371,083
• Time in Patent Office: 511 Days
• Field of Search: 128/204.18, 128/204.23, 128/204.26, 128/205.25, 128/716-719
• US Class Current: 128/204.23
• CPC Class Codes: A61B 5/097 Devices for facilitating collection of breath or for directing breath into or through measuring devices
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 7/003 Detecting lung or respiration noise
• CPC Class Codes: A61F 5/56 Devices for preventing snoring by influencing the respiratory system by gas treatment A61M16/00
• CPC Class Codes: A61M 16/0051 with alarm devices
• CPC Class Codes: A61M 16/0069 the speed thereof being controlled by respiratory parameters, e.g. by inhalation
• CPC Class Codes: A61M 16/024 including calculation means, e.g. using a processor
• CPC Class Codes: A61M 16/06 Respiratory or anaesthetic masks
• CPC Class Codes: A61M 2016/0024 with an on-off output signal, e.g. from a switch
• CPC Class Codes: A61M 2016/0036 in the breathing tube and used in both inspiratory and expiratory phase
• CPC Class Codes: A61M 2230/04 Heartbeat characteristics, e.g. ECG, blood pressure modulation
• CPC Class Codes: A61M 2230/10 Electroencephalographic signals
• CPC Class Codes: A61M 2230/18 Rapid eye-movements [REM]
• CPC Class Codes: A61M 2230/205 partial oxygen pressure (P-O2)
• CPC Class Codes: A61M 2230/432 partial CO2 pressure (P-CO2)
• CPC Class Codes: A61M 2230/60 Muscle strain, i.e. measured on the user

Abstract

An air flow device and a method useful for the treatment of upper airway disordered breathing. The invention provides an airflow device having a means for delivering variable pressure levels of breathable air to a patient'"'"'s respiratory system with a means for controlling the time during which the delivered pressurized air rises from an initial pressure level to a higher operating pressure level. The device increases the pressure level of gas delivered to the patient over a plurality of breaths taken by the patient. This type of device is useful for treating a wide variety of sleeping and breathing disorders.

Claims

1. A method useful for the treatment of upper airway disordered breathing comprising the steps of:

(a) providing releasably sealed air communication with a patient'"'"'s respiratory system from an air pressure source;

(b) continuously delivering pressurized air to the patient, the pressurized air delivered beginning from an initial low pressure level; and

(c) automatically increasing the pressure level of air delivered to the patient over a variable period of time until the pressure reaches a preset operating therapeutic level, wherein the variable period of time occurs over a plurality of breaths by the patient.

2. The method as in claim 1 wherein air pressure is automatically increased by a delay timer mechanism to raise the pressure from the initial low pressure level to the operating therapeutic level over a period of time.

3. The method as in claim 1 wherein the sealed air communication is provided by attaching a mask and/or nasal prongs to the patient.

4. The method as in claim 1 wherein the initial lower pressure level is about 3-5 cm H₂ O gauge pressure.

5. The method of claim 1 wherein said upper airway disordered breathing is snoring.

6. The method of claim 1 wherein said upper airway disordered breathing is obstructive apnea.

7. The method of claim 1 wherein said upper airway disordered breathing is central apnea.

8. The method of claim 1 wherein said upper airway disordered breathing is mixed apnea.

9. An air flow device comprising means useful for the treatment of upper airway disordered breathing, said device comprising:

(a) means for delivering variable pressure levels of pressurized air to a patient'"'"'s respiratory system; and

(b) means for controlling the time during which continuously delivered pressurized air automatically rises from an initial low pressure level to a preset operating therapeutic level, wherein the time it takes to go from an initial low pressure level to an operating therapeutic level occurs over a plurality of breaths by the patient.

10. The air flow device as in claim 9 wherein the variable pressure delivery means includes a mask and/or nasal prongs.

11. The air flow device as in claim 10 wherein the mask provides sealed air communication with the patient'"'"'s nasal passages.

12. The air flow device as in claim 9 or 10 wherein the controlling means includes a delay timer mechanism which is preset by a manufacturer to automatically raise the pressure level.

13. The air flow device as in claim 9 or 10 wherein the controlling means includes a delay timer mechanism which is preset by a physician to automatically raise the pressure level.

14. The air flow device of claim 9 wherein said upper airway disordered breathing is snoring.

15. The air flow device of claim 9 wherein said upper airway disordered breathing is obstructive apnea,

16. The air flow device of claim 9 wherein said upper airway disordered breathing is central apnea.

17. The air flow device of claim 9 wherein said upper airway disordered breathing is mixed apnea.