Apparatus and method for preventing hypoxic damage

• US 4,813,427 A
• Filed: 02/17/1987
• Issued: 03/21/1989
• Est. Priority Date: 02/17/1986
• Status: Expired due to Fees

• Current Assignee: PPG Hellige GmbH (GE Healthcare Technologies, Inc.)
• Original Assignee: Hellige GmbH (GE Healthcare Technologies, Inc.)
• Inventors: Schlaefke, Marianne E., Hopmeier, Joachim
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/015,635
• Time in Patent Office: 763 Days
• Field of Search: 128/670-671, 128/716, 128/719, 128/721-723, 128/687, 128/637, 128/736, 128/664-666
• US Class Current: 600/484
• CPC Class Codes: A61B 2503/06 Children, e.g. for attention deficit diagnosis
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/4818 Sleep apnoea

Abstract

Disclosed are apparatus and method for preventing hypoxic damage, relieving respiratory difficulties and conditioning breathing reflexes in a living human body. More particularly, at least one sensory stimulus is imparted to the body in response to a deviation from at least one adjustable physiological variable followed sequentially by delivery of a respiration restoring gas to the vicinity of the nose and mouth of the body.

Claims

1. Apparatus for preventing hypoxic damage and restoring normal respiration in a living human body said apparatus comprising:

(a) means associated with said body for measuring and monitoring at least one physiological variable within adjustable limits;

(b) first means associated with and actuated by said measuring and monitoring means whereby when a physiological variable deviates from said adjustable limits, at least one sensory stimulus is imparted to said body for an adjustable time period; and

(c) second means associated with and actuated by said measuring and monitoring means whereby when a physiological variable deviates from said adjustable limits and after an adjustable time interval following impartation of said sensory stimulus, a respiration restoring gas is delivered, for an adjustable time period, to the vicinity of the nose and mouth of said body.

2. The apparatus of claim 1 wherein the measuring and monitoring means is selected from a heart rate monitor, a blood oxygen tension monitor, a respiration monitor, a blood carbon dioxide monitor, a temperature monitor, a blood oxygen saturation monitor or combinations of such monitors.

3. The apparatus of claim 1 wherein said first means comprises electrical switching means for actuating and imparting said sensory stimulus in response to an electrical signal from said measuring and monitoring means.

4. The apparatus of claim 3 further including magnetic valve means.

5. The apparatus of claim 1 wherein said second means comprises a magnetic valve means for delivering respiration restoring gas in response to an electrical signal from said measuring and monitoring means.

6. A method for detecting a respiratory disorder, restoring normal respiration and conditioning respiratory reflexes in a living human body said method comprising:

(a) measuring and monitoring at least one selectable physiological variable of said body and adjusting limits of such variable;

(b) detecting a variance from said adjustable limits of said selected physiological variable;

(c) imparting at least one sensory stimulus to the body for an adjustable period of time in response to detecting said variance;

(d) delivering respiration restoring gas to the vicinity of the nose and mouth of said body for an adjustable period of time after an adjustable interval of time following impartation of said sensory stimulus; and

repeating the sequence of imparting sensory stimulus and delivering respiration restoring gas until the physiological variable is within said adjustable limits.

7. The method of claim 6 wherein the physiological variable measured and monitored is selected from heart rate, blood oxygen tension, respiration rate, blood carbon dioxide content, temperature, blood oxygen saturation and the like or combinations thereof.

8. The method of claim 6 wherein the sensory stimulus is imparted for a period of from 0.2 to 5 seconds, the respiration restoring gas is delivered for a period of from 0.2 to 5 seconds, and the interval between imparting sensory stimulus and delivering respiration restoring gas is from about 0.2 to 5 seconds.

9. The method of claim 8 wherein the sensory stimulus is imparted for from 0.5 to 2 seconds, the respiration restoring gas is delivered for from 0.5 to 2 seconds, and the interval therebetween is from 0.3 to 0.8 seconds.