Respiratory oscillation generator in artificial respiratory organs


PURPOSE: To assure a sufficient capacity, i.e., the large work done to the respiration systems without being restricted by the inertia arising from forward and backward movements by using a pressure generating machine operated by revolution of a blower and a selector valve as a pressure generating source, thereby stabilizing the positive pressure on a blower discharge side and the suction pressure on a blower suction port side. CONSTITUTION: A high-frequency respirator oscillation generator B has the blower 11 as the pressure generating source and the selector valve 12 of a rotary type. The positive pressure generated by the discharge port 11a of the blower 11 and the negative pressure generated by the suction port 11b are alternately applied to an oscillation circuit 13 by the selector valve 12. A positive pressure port P1 is communicated with an atm. releasing port P4 when a pressure applying port P3 is closed by a valve disk part 25c and is conversely communicated with the pressure applying port P3 when the atm. releasing port P4 is closed by the valve disk part 25c. The pressure applying port P3 is eventually communicated alternately to the positive pressure port P1 and the negative port P2 by the phase difference between the two valve disk parts 25b and 25c. COPYRIGHT: (C)1990,JPO&Japio




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Cited By (7)

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    EP-0570015-A1November 18, 1993Minnesota Mining And Manufacturing CompanySystème de commande et d'enregistrement d'écoulement d'air
    GB-2485417-AMay 16, 2012Frede Oellgaard JensenReversible proportional four-way valve
    US-5622164-AApril 22, 1997Minnesota Mining And Manufacturing CompanyAir flow recorder, generator and analysis system for inhalation device testing and modeling
    US-6694976-B1February 24, 2004Suzuki Motor CorporationOscillating air pressure generator, diaphragm unit, and high-frequency artificial respiration apparatus using the same
    US-9821136-B2November 21, 2017Metran Co., Ltd.Opening and closing device and respiratory assistance device
    WO-2013157517-A1October 24, 2013株式会社メトラン開閉具及び呼吸補助装置
    WO-2015053054-A1April 16, 2015株式会社メトラン開閉具及び呼吸補助装置