[특허]Self returning contamination barrier

Self returning contamination barrier 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-001/06 A61M-001/00
출원번호	US-0269381 (2011-10-07)
등록번호	US-9814809 (2017-11-14)
발명자 / 주소	Luzbetak, Mark A. Sutrina, Thomas A. Pfenniger, Erich Bosshard, Patrik
출원인 / 주소	Medela Holding AG
대리인 / 주소	McDonnell Boehnen Hulbert & Berghoff LLP
인용정보	피인용 횟수 : 0 인용 특허 : 55

초록 ▼

A barrier of a vacuum pump prevents contamination from entering a vacuum pump air line. The barrier separates parts of the pump and is moveable between an initial state and a distended state. The barrier is assembled within the pump with a pre-load. When the vacuum source is applied to the barrier, the barrier achieves a distended state and when the vacuum source is released, the barrier incrementally self returns to an initial state. The geometry and material construction of the barrier, along with the pre-load, assists in returning the barrier on its own to the initial state from the distended state.

대표청구항 ▼

1. A breastpump assembly which isolates parts of a pump in a vacuum line from contamination, comprising: a breastshield;a vacuum source in communication with said breastshield via said vacuum line;a housing having a breastshield side and a vacuum side, said housing being in communication with said vacuum line; anda barrier made of a material providing a spring-like function being assembled in said housing in a manner to separate and thereby isolate said housing sides from one another and in an initial state with a pre-loaded condition providing a residual force for said barrier, wherein said barrier comprises a geometry that maintains a low spring rate and wherein said barrier has a bias toward said breastshield side;wherein said barrier achieves a distended state in response to an applied vacuum from said vacuum source and returns from said distended state back to said initial state upon release of said applied vacuum;wherein said barrier has at least one undulation formed generally radially spaced from and concentric about a center of said barrier, a breastshield side internal sidewall of said housing having a surface shape that generally matches the shape of a first surface of said barrier such that said barrier in said pre-loaded condition substantially mates with said breastshield side internal sidewall in facial engagement, and a vacuum side internal sidewall of said housing having a surface shape that generally matches the shape of a second surface of said barrier such that said barrier in said distended state substantially mates with said vacuum side internal sidewall in facial engagement, wherein said barrier has become inverted through movement from said initial state to said distended state. 2. The breastpump assembly of claim 1 wherein said barrier is made of a resilient material which in combination with said barrier shape causes said barrier to return from said distended state to said initial state on its own upon the release of said vacuum. 3. The breastpump assembly of claim 1 wherein the mechanical transfer of vacuum from said vacuum side to said breastshield side follows a generally one to one relationship after an initial level of vacuum is realized on said vacuum side to overcome said pre-loaded condition. 4. The breastpump assembly of claim 3 wherein said initial level of vacuum to transfer said barrier from said pre-loaded condition to said distended position is about 4 mmHg. 5. The breastpump assembly of claim 1, further comprising a milk conduit structure which conveys milk from said breastshield to a container via a catch chamber and a one-way valve between said catch chamber and said container, wherein said barrier upon returning to said initial state with a predetermined minimum amount of milk in said catch chamber generates an increased pressure in said catch chamber relative to said container so as to open said one-way valve and release milk to travel into said container. 6. The breastpump assembly of claim 1 wherein said barrier has a formed shape of convexity in an unassembled condition, and when mounted within said housing said barrier cannot reach said formed shape of convexity in said initial state, such that said barrier is pressed against said breastshield side internal sidewall in said initial state.

이 특허에 인용된 특허 (55)

Hoefelmayr Tilman (Niederteufen CHX) Maier Jakob (Tuerkheim DEX), Apparatus for conveying milk using an underpressure.
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McKendry, Bruce; Seaman, Wallace Charles; Lee, Sung, Apparatus for expressing milk.
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Rosenblatt Richard (304 S. Oakhurst Dr. Beverly Hills CA 90212), Aspirator for collection of bodily fluid.
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Rosenblatt Richard (304 S. Oakhurst Dr. Beverly Hills CA 90212), Aspirator for collection of bodily fluids.
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Rosenblatt Richard (304 S. Oakhurst Dr. Beverly Hills CA 90212), Aspirator for collection of bodily fluids.
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Williams, Jonathan; Hoff, Robert; Kaushansky, Yefim, Balloon pump system having a pressure reservoir muffler.
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Richter Siegfried (Rudolfstrasse 3 D-7798 Pfullendorf DEX), Breast milk pump.
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Riedweg Robert (Eich CHX) Schlensog Klaus (Hnenberg CHX), Breast pump.
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Wilson Michael J. (Vancouver CAX), Breast pump adapter for filling infant nursers having disposable liners and methods of operation.
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Beer Christian (Boniswil CHX) Riedweg Robert (Lucerne CHX) Schlensog Klaus (Hnenberg CHX), Breast pump insert.
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Huber Anthony,CHX ; Moser Beat J.,CHX, Breast shield with vacuum isolation element.
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Silver, Brian H.; Schweizer, Russ, Breastshield with multi-pressure and expansible chamber construction, related breastpump and method.
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Adams Frank H. (1246 Indiana Ave. Salt Lake City UT 84104), Combination breast pump and gavage feeding apparatus and method.
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Thayer James R. (Versailles KY) Boulanger Henry J. (Nicholasville KY) Jansen Bryan C. (Lexington KY), Condition-responsive device with diaphragm protection means.
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Portman, Jill; Shinner, Gary, Container lid and methods for beverage preparation and bag retention through side wall.
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Riebman,Jerome B.; Ohashi,Kevin L., Devices and methods for blood flow assistance.
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Perlov Gena (Haifa ILX), Diaphragm and a diaphragm-actuated fluid-transfer control device.
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Becker Erich (Bad Krozingen DEX) Riedlinger Heinz (Bad Krozingen DEX), Diaphragm pump with reinforced diaphragm.
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Kell Michael J. (Decatur GA), Diaphragm type blood pump for medical use.
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Daily, David; Cabiri, Oz; Rozanowich, Mario; Sahar, Miki; Stern, Jacob; Davidson, Diana; Tsals, Izrail; Lavi, Gilad; Azoulay, Avi; Shor, Eran; Brodeur, Craig, Drug delivery device.
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Maget Henri J. R. (6455 La Jolla Blvd. La Jolla CA 92037), Efficient electrochemical motor.
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Caillet Eugene (St Marys OH), Expansion tank diaphragm assembly.
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John Aloys Walterbusch, Hydraulic engine mounting device.
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Steinbach Bernd,DEX ; Walter Claus,DEX, Implantable infusion pump.
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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

Self returning contamination barrier 원문보기

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연합인증

Self returning contamination barrier 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허에 인용된 특허 (55)

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