Apparatus for the diagnosis or treatment of respiratory sleep disorders and operating process
First Claim
1. A process for operating an apparatus for the diagnosis or the treatment of the respiratory sleep disorders of a user, said apparatus comprising at least one motorized turbine making it possible to deliver a stream of respiratory gas under variable or constant pressure into at least one patient circuit capable of being linked to said user, comprising the steps of:
- (a) determining an image of the respiratory flow rate (IdD) of the patient by detecting and/or monitoring the variations in the electric current consumed by the turbine during at least part of at least one given respiratory cycle;
(b) determining an image of the respiratory volume (IdV) of the patient by integrating the image of the respiratory flow rate of the patient (IdD) so as to obtain the area (Acc) of the current consumed during at least part of said at least one given respiratory cycle;
(c) determining the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded said at least one given respiratory cycle, with n>
5;
(d) determining at least one cue representative of at least one respiratory flow rate restriction during at least said given respiratory cycle;
(i) by comparing the image of the respiratory volume (IdV) as determined in step (b) with the moving average (ma-IdV) of the image of the respiratory volume as determined in step (c), and/or (ii) by calculating the ratio between the image of the respiratory volume (IdV) as determined in step (b) and the area (Asp) of a preset pure sine and/or the area (Asc) of a preset square signal;
(e) storing and/or displaying and/or printing at least one cue as determined in step (d).
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Accused Products
Abstract
The apparatus includes a motorized turbine making it possible to deliver a stream of respiratory gas under variable or constant pressure into a patient circuit linked to a user. In the process an image of the respiratory flow rate of the patient is determined on the basis of the variations in the electric current consumed by the turbine. An image of the respiratory volume of the patient is determined by integrating the image of the respiratory flow rate of the patient. The moving average of the image of the respiratory volume of the patient is determined over n respiratory cycles and a respiratory flow rate restriction is determined, below that of an apnea or a hypopnea, representative of an event of ORE type.
41 Citations
15 Claims
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1. A process for operating an apparatus for the diagnosis or the treatment of the respiratory sleep disorders of a user, said apparatus comprising at least one motorized turbine making it possible to deliver a stream of respiratory gas under variable or constant pressure into at least one patient circuit capable of being linked to said user, comprising the steps of:
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(a) determining an image of the respiratory flow rate (IdD) of the patient by detecting and/or monitoring the variations in the electric current consumed by the turbine during at least part of at least one given respiratory cycle;
(b) determining an image of the respiratory volume (IdV) of the patient by integrating the image of the respiratory flow rate of the patient (IdD) so as to obtain the area (Acc) of the current consumed during at least part of said at least one given respiratory cycle;
(c) determining the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded said at least one given respiratory cycle, with n>
5;
(d) determining at least one cue representative of at least one respiratory flow rate restriction during at least said given respiratory cycle;
(i) by comparing the image of the respiratory volume (IdV) as determined in step (b) with the moving average (ma-IdV) of the image of the respiratory volume as determined in step (c), and/or (ii) by calculating the ratio between the image of the respiratory volume (IdV) as determined in step (b) and the area (Asp) of a preset pure sine and/or the area (Asc) of a preset square signal;
(e) storing and/or displaying and/or printing at least one cue as determined in step (d). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
the image of the respiratory flow rate (IdD), the image of the respiratory volume (IdV), and the moving average (ma-IdV) of the image of the respiratory volume.
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8. The process as claimed in claim 1, wherein in step (d), a value of moving average (ma-IdV) of the image of the respiratory volume as determined in step (c) is subtracted from the value of the area (Acc) of the current consumed corresponding to the image of the respiratory volume (IdV) as determined in step (b).
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9. An apparatus for the diagnosis or the treatment of the respiratory sleep disorders of a user capable of operating according to an operating process as claimed in claim 1, said apparatus comprising a gas circuit capable of being linked to said user and at least one motorized turbine making it possible to deliver a stream of respiratory gas under variable or constant pressure into at least said gas circuit, comprising:
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means of detecting and/or of monitoring the variations in the electric current consumed by the turbine during at least part of at least one given respiratory cycle;
means of determining an image of the respiratory flow rate (IdD) of the patient;
means of determining an image of the respiratory volume (IdV) of the patient as represented by the area (Acc) of the current consumed during at least part of said at least one given respiratory cycle, comprising means of integrating the image of the respiratory flow rate of the patient (IdD) so as to obtain said area (Acc) of the current consumed;
means of determining the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded said at least one given respiratory cycle, with n>
5;
means of determining at least one cue representative of at least one respiratory flow rate restriction during at least said given respiratory cycle (i) by comparing the image of the respiratory volume (IdV) as determined in step (b) with the moving average (ma-IdV) of the image of the respiratory volume as determined in step (c), and/or (ii) by calculating the ratio between the image of the respiratory volume (IdV) as determined in step (b) and the area (Asp) of a preset pure sine and/or the area (Asc) of a preset square signal; and
means of storing and/or displaying and/or printing at least one respiratory flow rate cue and/or at least one datum chosen from the group formed by the image of the respiratory flow rate (IdD), the image of the respiratory volume (IdV), and the moving average (ma-IdV) of the image of the respiratory volume.
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10. The apparatus as claimed in claim 9, wherein the means of detecting and/or of monitoring the variations in the electric current consumed by the turbine make it possible to determine an image of the respiratory flow rate (IdD) and/or to determine an image of the respiratory volume (IdV) over at least part of at least two successive given respiratory cycles.
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11. The apparatus as claimed in claim 10, wherein the means of detecting and/or of monitoring the variations in the electric current consumed by the turbine make it possible to determine an image of the respiratory flow rate (IdD) and/or to determine an image of the respiratory volume (IdV) over at least part of over three or four successive given respiratory cycles.
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12. The apparatus as claimed in claim 9, wherein the means of determining the moving average make it possible to determine the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded at least one given respiratory cycle, with n>
- 10.
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13. The apparatus as claimed in claim 12, wherein the means of determining the moving average make it possible to determine the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded at least one given respiratory cycle, with n between 15 and 40.
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14. The apparatus as claimed in claim 13, wherein the means of determining the moving average make it possible to determine the moving average (ma-IdV) of the image of the respiratory volume of the patient over the n respiratory cycles which preceded at least one given respiratory cycle, with n between 20 and 30.
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15. The apparatus as claimed in claim 9, wherein the means of determining at least one cue representative of at least one respiratory flow rate restriction make it possible to subtract a value of moving average (ma-IdV) of the image of the respiratory volume, as determined by the means of determining the moving average, from the value of the area (Acc) of the current consumed corresponding to the image of the respiratory volume (IdV) as determined by the means of determining an image of the respiratory volume (IdV).
Specification