[특허]Respirator having a trigger sensitivity dependent on the patient gas flow

Respirator having a trigger sensitivity dependent on the patient gas flow 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-016/00 A62B-007/00 A62B-009/00 F16K-031/02
출원번호	US-0809953 (1991-12-18)
우선권정보	XH-0124930 (1990-12-20)
발명자 / 주소	Olsson Sven-Gunnar (Arloev SEX) Rydgren Goeran (Bunkeflostrand SEX) Linden Dan (Stockholm SEX)
출원인 / 주소	Siemens Aktiengesellschaft (Munich DEX 03)
인용정보	피인용 횟수 : 102 인용 특허 : 0

초록 ▼

A respirator has a bypass gas flow and respective valves in the inspiration and expiration lines for setting the gas flow through these lines. A control unit actuates the valves so that a respiratory cycle is produced and such that the bypass gas flow is maintained during expiration. The expiration pressure is identified by a pressure sensor. When this expiration pressure falls below a prescribed value, a new inspiration phase is triggered. To improve this triggering, the patient gas flow is identified by a flow meter, and the prescribed pressure value is varied dependent on the identified patient gas flow.

대표청구항 ▼

A respirator comprising: an inspiration line and an expiration line each adapted for connection to the respiratory path of a patient, and said inspiration line connected to a source of respiratory gas; first valve means disposed in said inspiration line for setting gas flow through said inspiration line; second valve means disposed in said expiration line for setting gas flow through said expiration line, said expiration line having a pressure therein; control means for operating said first and second valve means for producing a respiratory cycle having an inspiration phase and an expiration phase, including maintaining said first valve means open during said expiration phase to an extent for producing an adjustable bypass gas flow in said inspiration line; pressure sensor means for identifying the pressure in said expiration line; means for setting a pressure trigger limit; trigger means, connected to said pressure sensor means and to said control means, for triggering a new inspiration phase when the pressure, measured by said pressure sensor means, in said expiration line during said expiration phase falls below said pressure trigger limit; flow meter means, connected to said trigger means and to said control means, for identifying patient gas flow; and means in said control means for automatically changing said pressure trigger limit dependent on said patient gas flow identified by said flow meter means.

이 특허를 인용한 특허 (102)

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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

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연합인증

Respirator having a trigger sensitivity dependent on the patient gas flow 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (102)

관련 콘텐츠

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연합인증

Respirator having a trigger sensitivity dependent on the patient gas flow 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (102)

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