[특허]High frequency oscillatory ventilator and respiratory measurement system

High frequency oscillatory ventilator and respiratory measurement system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-016/00
출원번호	US-0190322 (1994-01-31)
발명자 / 주소	Winter Dean C. (San Antonio TX) Harris Ralph E. (Cary NC) Honeyager Kevin S. (San Antonio TX)
출원인 / 주소	Southwest Research Institute (San Antonio TX 02)
인용정보	피인용 횟수 : 58 인용 특허 : 0

초록 ▼

A high frequency oscillatory ventilator for infants and adults using feedback control to maintain either the desired tidal volume or pressure delivered to the subject. The inspiratory to expiratory time ratio of the ventilator is variable. The ventilator corrects the measured pressure for arbitrarily-sized endotracheal tubes and calculates the actual pressure or tidal volume delivered to the subject. The ventilator also separates the source of the tidal volume oscillations from the patient circuit with a flexible membrane or diaphragm, allowing transmission of oscillating tidal volumes while blocking mean airway pressures. The patient circuit is flexible, but fabricated from low-compliance material to minimize the loss of tidal volume. The ventilator uses feedback control of the exhaust flow to maintain mean airway pressure in the presence of an independently controlled bias flow. Further, a respiratory impedance measurement system is built into or connected to the patient circuit which monitors changes in lung mechanics while the patient is connected to the high frequency ventilator without changing mean airway pressure or removing the patient from the ventilator.

대표청구항 ▼

A ventilator apparatus for providing assistance in breathing to a living subject, comprising: a low compliance patient circuit tube having a first end and a second end; means mounted to said patient circuit tube for providing fresh gas into said patient circuit tube and for exhausting exhaled gas out of said patient circuit tube; an endotracheal tube intubated in the subject coupled to said first end of said patient circuit tube; a pump for generating tidal volumes having an outlet coupled to said second end of said patient tube, said pump further comprising, a closure having a cavity area, said closure including said pump outlet and an opening for communication with said cavity area, a piston and a rolling seal covering said opening, said piston and said rolling seal allowing a relatively slow leak from said cavity area, means for oscillating said piston, and a flexible membrane provided within said cavity area between said pump outlet and said piston, said membrane dividing said cavity area into a first cavity between said membrane said outlet and a second cavity between said membrane and said piston, said membrane preventing communication of gas between said tube and said second cavity; and wherein gas pressure developed in said patient circuit tube communicates to said first cavity deflecting said membrane towards said second cavity, wherein gas displaced by said membrane displacement in said second cavity escapes through said slow leak, wherein when said oscillating means oscillates said piston, said flexible membrane oscillates correspondingly generating tidal volumes through said patient circuit tube and said endotracheal tube.

이 특허를 인용한 특허 (58)

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Froehlich James P., Bilevel CPAP system with waveform control for both IPAP and EPAP.
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Breen, Peter H., Bymixer apparatus and method for fast-response, adjustable measurement of mixed gas fractions in ventilation circuits.
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Breen, Peter H., Bymixer apparatus and method for fast-response, adjustable measurement of mixed gas fractions in ventilation circuits.
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Borrello, Michael A., Closed loop control system for a high frequency oscillation ventilator.
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Borrello, Michael A., Closed loop control system for a high frequency oscillation ventilator.
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Borrello, Michael A., Closed loop control system for a high frequency oscillation ventilator.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F., Determination of patient circuit disconnect in leak-compensated ventilatory support.
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Krüger, Thomas; Glaw, Tobias, Device and method for respirating a patient by means of high-frequency ventilation.
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Fuhrman, Bradley P.; Dowhy, Mark S., Device and method of isolating bias flow.
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Fuhrman, Bradley P.; Dowhy, Mark S., Device and method of reducing bias flow in oscillatory ventilators.
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Fuhrman,Bradley P.; Dowhy,Mark S., Device and method of reducing bias flow in oscillatory ventilators.
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Koledin, Michael, Enhanced manually actuated pressure controlled modulator technology.
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Bennarsten, Johan, High frequency oscillation ventilator.
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Bennarsten,Johan; Rydgren,Goran; Strom,Christer, High frequency oscillator ventilator.
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Duquette, Steven; Westfall, Thomas; Han, Steve, High frequency oscillator ventilator.
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Sugiura, Yasuhito, High-frequency oscillation artificial respiration apparatus.
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Sugiura, Yasuhito, High-frequency oscillation artificial respiration apparatus.
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Bennarsten, Johan, High-frequency oscillation patient ventillator system.
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Jourdain, Cedric; Bernadet, Olivier, Leak determination in a breathing assistance system.
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Jourdain, Cedric; Bernadet, Olivier, Leak determination in a breathing assistance system.
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Jourdain, Cédric; Bernadet, Olivier, Leak determination in a breathing assistance system.
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Jafari, Mehdi M.; Aviano, Jeffrey K.; Jimenez, Rhomere S.; Upham, Gail F., Leak-compensated flow triggering and cycling in medical ventilators.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated pressure regulated volume control ventilation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated pressure regulated volume control ventilation.
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Jafari, Mehdi M.; Aviano, Jeffrey K.; Jimenez, Rhomere S.; Upham, Gail F., Leak-compensated pressure triggering in medical ventilators.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated proportional assist ventilation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated proportional assist ventilation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated proportional assist ventilation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Upham, Gail F.; Aviano, Jeffrey K., Leak-compensated respiratory mechanics estimation in medical ventilators.
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Maguire, Seamus; Wood, Lockett E.; Ledwith, Brian, Medical device tube having suction lumen and an associated suctioning system.
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Choncholas, Gary J.; Tobia, Ronald L., Method and apparatus for airway compensation control.
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Van Den Aardweg, Joost Gerard, Method and apparatus for estimating respiratory impedance.
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Sly, Peter; Hantos, Zoltan; Thamrin, Cindy, Method of measuring an acoustic impedance of a respiratory system and diagnosing a respiratory disease or disorder or monitoring treatment of same.
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Jafari, Mehdi M.; Masic, Milenko; Jimenez, Rhomere S.; Aviano, Jeffrey K.; McCoy, Edward R., Methods and systems for adaptive base flow and leak compensation.
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Jafari, Mehdi M.; Arul, Periagounder R.; Aviano, Jeffery K., Methods and systems for leak estimation.
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Jafari, Mehdi M.; Arul, Periagounder R.; Aviano, Jeffrey K., Methods and systems for leak estimation.
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Milne, Gary, Methods and systems for volume-targeted minimum pressure-control ventilation.
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Kollmeyer, Phillip J.; Kutko, Stefan I.; Tham, Robert; Rick, Norman; Woods, Jonathan L., Mobile medical ventilator.
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Dunsmore, Thomas J.; Wise, Geoffrey C.; Wilschke, Thomas C.; Mingione, Louis P., Patient interface assembly for respiratory therapy.
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Dunsmore, Thomas J; Wise, Geoffrey C.; Wilschke, Thomas C.; Mingione, Louis P., Patient interface assembly for respiratory therapy.
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Jam,Mohammad R., Respiratory booster machine and method for enhancing ventilation.
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Miller, Michael Ronald; Thottakara, Elizabeth Ann; Pearson, Jr., Phil E., Respiratory measurement system and method related thereto.
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Dunsmore, Thomas J; Wise, Geoffrey C., Respiratory therapy system with electromechanical driver.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; Aviano, Jeffrey K.; Upham, Gail F., System and method for determining ventilator leakage during stable periods within a breath.
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Levi, Andrew Phillip; Braatz, Robert Edwin, System and method for integrated high frequency oscillatory ventilation.
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Kimm, Gardner; Garde, Smita; Arcilla, Mabini, System and method for supporting sub-physiologic and physiologic tidal volumes in spontaneous or non-spontaneous breathing during high frequency ventilation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; McCoy, Edward R.; Aviano, Jeffrey K., Ventilator leak compensation.
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Jafari, Mehdi M.; Jimenez, Rhomere S.; McCoy, Edward R.; Aviano, Jeffrey K., Ventilator leak compensation.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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High frequency oscillatory ventilator and respiratory measurement system 원문보기

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High frequency oscillatory ventilator and respiratory measurement system 원문보기

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