[특허]Valving arrangement for a negative pressure ventilator

Valving arrangement for a negative pressure ventilator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-011/085 A61H-031/02
출원번호	US-0946897 (1992-09-17)
발명자 / 주소	Farmer Robert B. (Boulder CO) Shackelford John T. (Longmont CO)
출원인 / 주소	Lifecare International, Inc. (Lafayette CO 02)
인용정보	피인용 횟수 : 117 인용 특허 : 0

초록 ▼

A valving arrangement primarily designed and intended for use in a negative pressure ventilator system. The valve arrangement has a uniquely designed valve that enables the ventilator to perform a number of operations simply by manipulation of a single, one-piece valve member within a valve housing. The valve housing has multiple inlets and outlets and the valve member can be rotated within it to present a variety of pressure cycles to the patient. In the preferred manner of operation, the present invention selectively applies negative and positive pressures to the patient during different portions of the cycle. In this regard, the valve member is structured so that negative and positive pressures are never at the same time delivered to the patient. The valve arrangement is compact and lightweight. It is also functionally superior to prior designs that can only supply whatever pressure is being created by the blower. In contrast, the valve of the present invention can create pressures from zero to the maximum blower pressures (both negative and positive) by positioning the valve to selectively split the blower pressure (negative or positive) to ambient air.

대표청구항 ▼

A valving arrangement primarily intended for use with an air blower means to selectively draw air through and drive air through a primary flow channel, said valving arrangement including: air blower means having a main body with an inlet and outlet and means for moving air through said main body from said inlet to said outlet, said air at said inlet being at a negative pressure less than ambient air pressure and said air at said outlet being at a positive pressure greater than ambient air pressure, a primary flow channel, and valve means operably positioned between said air blower means and said primary flow channel, said valve means having a valve housing with at least first and second separate inlets, at least first and second separate outlets, and at least one passageway in fluid communication with said primary flow channel, said valving arrangement further including a first flow path for said negative pressure air extending between said first outlet of said valving housing and the inlet of said air blower means, a second flow path for said positive pressure air extending between the outlet of said air blower means and the first inlet of said valve housing, said second outlet of said valve housing and said second inlet of said valve housing being respectively in fluid communication with ambient air, and said valve means further including a single, one-piece valve member and means for moving said single valve member between at least two positions, said valve member in one position placing said first flow path in fluid communication through said passageway with said primary flow channel and through said second inlet of said valve housing in fluid communication with ambient air while placing said second flow path in fluid communication through the second outlet of said valve housing with ambient air to vent substantially all of said positive pressure air from said air blower means to ambient air and said valve member in another position placing said second flow path in fluid communication through said passageway with said primary flow channel and through said second outlet of said valve housing in fluid communication with ambient air while placing said first flow path in fluid communication through said second inlet to said valve housing with ambient air to draw ambient air through said second inlet in said valve housing into said air blower means through said first flow path.

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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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Valving arrangement for a negative pressure ventilator 원문보기

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Valving arrangement for a negative pressure ventilator 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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