Detection of ventilation sufficiency

A technology of ventilation volume and hypoventilation, which is applied in the fields of pharmaceutical devices, diagnostic recording/measurement, medical science, etc., and can solve problems such as undetected hypoventilation

Active Publication Date: 2014-01-08
RESMED LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] (c) The patient may have undergone limited diagnostic testing and hypoventilation was not detected b

Method used

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  • Detection of ventilation sufficiency
  • Detection of ventilation sufficiency
  • Detection of ventilation sufficiency

Examples

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Embodiment Construction

[0053] Such as figure 1 As shown, embodiments of the present invention may include a ventilation assessment device or apparatus 102 having a controller 104 having one or more processors for implementing specific ventilation assessment methods, such as those detailed herein. described algorithm. In some embodiments, ventilation assessment may provide a determination of ventilation adequacy, such as by determining hyperventilation or hypoventilation events. The ventilation assessment optionally may also provide information for making such a determination, for example by generating or analyzing a ventilation histogram. An example of a graphical ventilation histogram 110 is shown in figure 1 is shown in . The device or device may include an integrated chip, memory and / or other control instructions, data or information storage media. For example, program instructions implementing the evaluation method may be encoded on an integrated chip of a memory of a device or device to f...

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Abstract

Automated methods provide a ventilation sufficiency assessment to evaluate patient respiration. In some embodiments, a ventilation histogram maybe determined from a measure of patient respiratory flow. Based on the histogram or associated ventilation data, hypoventilation or hyperventilation occurrences may be detected. For example, a kurtosis index and/or skewness index may be calculated with the data associated with the ventilation histogram and may be evaluated as an indication of hypoventilation or hyperventilation. An assessment of the number of peaks and other features of the ventilation histogram, such as in the case of a bimodal ventilation histogram, may be implemented to detect an occurrence of ventilation insufficiency or sufficiency. The detection methodologies may be implemented by a specific purpose computer, a detection device that measures a respiratory airflow or a respiratory treatment apparatus that provides a respiratory treatment regime based on the detected ventilation sufficiency.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of the filing date of US Provisional Patent Application 61 / 466,560, filed March 23, 2011, the contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to methods and apparatus for detecting adequacy or insufficiency of respiratory ventilation, eg normal patient ventilation, hyperventilation or hypoventilation. Background technique [0004] One form of pressure therapy commonly used by patients with obstructive sleep apnea (OSA) is continuous positive airway pressure (CPAP), which is applied by a blower (compressor) via attached hose and mask. Positive pressure can be used to prevent the patient's airway from collapsing during inspiration, thereby preventing recurrent apnea or apnea-hypopnea and its sequelae. This respiratory therapy device supplies clean breathable gas (usually air, with or without supplemental oxygen) at therap...

Claims

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Application Information

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IPC IPC(8): A61B5/00A61M16/00
CPCA61M16/0057A61M2016/0027A61B5/7264A61M2016/0039A61M2205/3553A61B5/087A61M2205/18A61B5/083A61M16/0051A61M2016/0069A61M2230/435A61M2205/502A61M2205/15A61M16/0069A61M16/024
Inventor 杰弗里·P·亚米斯德迪内希·拉马南
Owner RESMED LTD
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