Interactive respiratory regulator

• US 5,899,203 A
• Filed: 03/10/1997
• Issued: 05/04/1999
• Est. Priority Date: 12/24/1992
• Status: Expired due to Fees

• Current Assignee: Cornelis Adriaan De Willigen, Eduard Theodorus Verveen, Peter Bernard Defares
• Original Assignee: Cornelis Adriaan De Willigen, Eduard Theodorus Verveen, Peter Bernard Defares
• Inventors: De Willigen, Cornelis Adriaan, Defares, Peter Bernard, Verveen, Eduard Theodorus
• Primary Examiner(s): Lewis, Aaron J.
• Assistant Examiner(s): SRIVASTAVA, VIRENDRA KUMAR
• Application Number:
  US08/814,088
• Time in Patent Office: 785 Days
• Field of Search: 128/204.23, 128/204.28, 128/204.21, 600/529, 600/532, 600/534, 600/483, 600/484, 607/20, 607/28, 607/30, 601/41
• US Class Current: 128/204.23
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/1135 by monitoring thoracic expansion
• CPC Class Codes: A61B 5/486 Bio-feedback A61B5/375 takes precedence

Abstract

An interactive respiratory regulator comprising a recording device recording the respiratory pattern of a user and issuing a corresponding respiratory signal, an instruction signal generator for the generation of an instruction signal that can be perceived by the user in order to influence his respiratory behavior, a control device controlling the instruction signal generator, a processing device which determines by means of a parameter of the respiratory signal received, whether the recorded respiratory pattern during a predetermined time span meets a pre-adjustable standard for this parameter, and which at a certain error percentage sends a starting signal to the control device. The interactive respiratory regulator is characterized in that the processing device processes as parameter the ratio between the in- and exhalation time in a respiratory cycle. In a preferred embodiment the processing device includes the frequency of the respiratory cycles as second parameter and the pre-adjustable standard comprises also a value for this parameter.

Claims

1. An interactive respiratory regulator for a user having a body and a respiratory pattern and cycle possessing an inhalation and exhalation time having a ratio thereof, a pause being present after exhalation, comprising:

a recording device recording the respiratory pattern of a user and producing a corresponding respiratory signal,

an instruction signal generator for generating an instruction signal that can be perceived by an user in order to influence his respiratory behavior,

a control device controlling the instruction signal generator,

a processing device which determines by means of a parameter of the respiratory signal received whether the respiratory pattern recorded during a predetermined time span meets a preadjustable standard for this parameter, and which at certain error percentage sends a starting signal to the control device,

the processing device (4) processes as parameter the ratio between the inhalation and exhalation time in a respiratory cycle, and optionally uses the pause after exhalation.

2. An apparatus according to claim 1, whereby respiratory cycles have a frequency, the frequency of the respiratory cycles is measured, wherein the processing device (4) processes the frequency of the respiratory cycles as second parameter and that the pre-adjustable standard also comprises a value for this parameter.

3. An apparatus according to claim 2, wherein the respiratory signal is fed to a clock generator controlled counter and a comparator, which during each respiratory cycle, when a count corresponding with a parameter standard is reached, issues an output signal to a time averaging device, wherein the processing device (4) is provided with at least two such counters (32, 40), comparators (33, 41) and time averaging devices (35, 43) allotted to each parameter, whereby each comparator (33, 41) sends a parameter O.K. signal (34, 42) to be fed to a time averaging device (35, 43), as soon as the corresponding counter (32, 40) has reached a count corresponding with the respective parameter standard.

4. An apparatus according to claim 3, wherein the counter (40), in order to compare the ratio between the inhalation and exhalation time with the standard, adds during an inhalation and deducts during an exhalation.

5. An apparatus according to claim 4, wherein during a predetermined period of time each time averaging device (35, 43) will determine a percentage of faulty respiratory cycles where the relevant parameter does not comply with the corresponding parameter standard, and that each time averaging device (35, 43) is connected to comparator (36, 44) recording any parameter error signal (37, 45) as soon as an average error percentage for that parameter exceeds a preset value.

6. An apparatus according to claim 5, wherein respective parameter error signals (37, 45) are fed into a decision device (46), the output signal of which is fed into the control device (7) as starting signal.

7. An apparatus according to claim 6, wherein a decision organ (46) carries out a logical function.

8. An apparatus according to claim 2, wherein the processing device (4) is provided with a processing unit having a memory, in which a computer program is stored, which on execution determines from the respiratory signal (3) the time of the cycle and/or the ratio between the inhalation and exhalation times in real-time, compares these parameters with (a) standard value(s) selected for this purpose, averages results of these comparisons over a predetermined period of time and causes a starting signal to be sent to the control device (7), in accordance with a predetermined decision criterium.

9. An apparatus according to claim 8 wherein various parameter standards and information relating to a desired synthesizable respiratory pattern are stored in a memory (5) and are selectable in a program mode, during which the instruction signal generator (ii) is disabled.

10. An apparatus according to claim 9, wherein memory (5) comprises a number of parameter standards and corresponding respiratory pattern information.

11. An apparatus according to claim 10, wherein respiratory pattern information relates to the inhalation and exhalation times, the inhalation and exhalation rates and/or the pauses following the inhalation and exhalations of the desired synthesizable respiratory pattern.

12. An apparatus according to claim 11, wherein when the starting signal is active, the instruction signal generator (11) compiles in a feedback mode the desired synthesizable respiratory pattern of the respiratory pattern information which the control device (7) reads from the memory (5).

13. An apparatus according to claim 12, wherein it comprises an operating device (51) equipped with a key board (50), by which means switching between different modes, selection of the standards stored in the memory (5) and respiratory pattern information and/or volume regulation of the instruction signal (12) is possible.

14. An apparatus according to claim 13, wherein it is further provided with a display unit (52), by which means current mode, the selected standards and the respiratory pattern information and/or the instruction signal volume can be visualized.

15. An apparatus according to claim 14, wherein the display unit (52) in the feedback mode also displays information sent by the processing device (4) concerning parameters of a currently recorded respiratory pattern.