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Methods and apparatus for pressure therapy in the treatment of sleep disordered breathing

A pressure and equipment technology, applied in the field of pressure therapy and equipment used in the treatment of sleep-disordered breathing, can solve problems such as obstructing the sleep of roommates

Inactive Publication Date: 2009-02-18
RESMED LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patients with OSA may also snore loudly, thereby interfering with the sleep of their roommates

Method used

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  • Methods and apparatus for pressure therapy in the treatment of sleep disordered breathing
  • Methods and apparatus for pressure therapy in the treatment of sleep disordered breathing
  • Methods and apparatus for pressure therapy in the treatment of sleep disordered breathing

Examples

Experimental program
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Embodiment Construction

[0019] refer to figure 1 , the present technique may be practiced with a pressure therapy delivery device, which may include a flow generator, such as a servo-controlled blower 102 . Blower 102 will typically include an air inlet and an impeller driven by a motor (not shown).

[0020] exist figure 1 In the illustrated embodiment, a frequency sensor 104 is provided. This sensor can be used to measure the rotation speed of the hair dryer. For example, a tachometer can measure the revolutions per minute (RPM) of a blower motor or blower impeller. Frequency sensor 104 may be used to generate a frequency signal f(t) representative of the sensor's measurement.

[0021] figure 1 The device also includes a pressure sensor 106, such as a pressure transducer. The pressure sensor 106 is used to measure the pressure generated by the blower 102 . In this embodiment, the pressure sensor 106 is located close to the blower 102, but could be located downstream of the blower if desired. ...

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PUM

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Abstract

A controller or processor for a respiratory pressure treatment device determines an estimate of patient respiratory flow based on a measure of pressure associated with flow generated by a flow generator and a measure of frequency of the flow generator, such as a rotational velocity of a servo-controlled blower motor. The estimate can be made without data from a flow sensor. The measure of frequency may be converted to an expected pressure based on characteristics of the flow generator and subtracted from the measured pressure to determine the flow estimate. The flow estimate can be implemented in the provision of respiratory pressure treatment with the flow generator. For example, the flow estimate may be utilized to trigger expiratory pressure relief during a patient's expiration as detected with the estimated flow signal.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from the filing dates of US Provisional Patent Application Nos. 60 / 965,171, filed August 17, 2007, and 61 / 125,066, filed April 22, 2008, the disclosures of which are hereby incorporated by reference. technical field [0003] The present technology relates to methods and devices for the treatment of respiratory conditions, such as conditions associated with Obstructive Sleep Apnea Hypopnea Syndrome (OSHAS) or Obstructive Sleep Apnea (OSA). Background technique [0004] Patients with OSA have recurring episodes of apnea or hypopnea during sleep that only cease when the patient wakes up. These recurring events cause sleep disruption and stimulation of the sympathetic nervous system. This can have serious consequences for the patient, such as daytime sleepiness (with the concomitant possibility of motor vehicle accidents), poorer mental status, memory problems, depression, and high blood p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/56A61B5/087A61M16/00
CPCA61M16/0069A61M16/0051A61M2205/3331A61M16/0066A61M2205/3365A61M2016/0027A61M16/06A61M2016/0069A61B5/087A61B5/4818A61B5/4836A61M16/026A61M2205/52
Inventor C·索脉亚N·M·Y·叶J·D·奥茨A·巴恩斯C·K·布鲁斯登
Owner RESMED LTD
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