CN102015006A - 具有流体流动控制的罐 - Google Patents
具有流体流动控制的罐 Download PDFInfo
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- CN102015006A CN102015006A CN2009801154470A CN200980115447A CN102015006A CN 102015006 A CN102015006 A CN 102015006A CN 2009801154470 A CN2009801154470 A CN 2009801154470A CN 200980115447 A CN200980115447 A CN 200980115447A CN 102015006 A CN102015006 A CN 102015006A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/78—Means for preventing overflow or contamination of the pumping systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/78—Means for preventing overflow or contamination of the pumping systems
- A61M1/782—Means for preventing overflow or contamination of the pumping systems using valves with freely moving parts, e.g. float valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/78—Means for preventing overflow or contamination of the pumping systems
- A61M1/784—Means for preventing overflow or contamination of the pumping systems by filtering, sterilising or disinfecting the exhaust air, e.g. swellable filter valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
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Abstract
与医疗抽吸或吸出装置一起使用的罐具有第一流体室和第二流体室。第一流体室具有入口。第二流体室具有出口。防喷溅挡板布置在第一流体室和第二流体室之间。防喷溅挡板具有贯穿防喷溅挡板形成的孔口,以允许流体从第一流体室流入到第二流体室。具有空隙的吸收阀布置在第二流体室内并且接合出口的一部分。吸收阀在接触来自第一流体室的流体时限制流体透过性,从而限制流体流动通过出口。
Description
技术领域
本发明总体上涉及罐。更具体地,本发明针对与医用抽吸或吸出装置一起使用的罐。
背景技术
医用抽吸和吸出装置用于在医疗过程或紧急情况期间去除体液。这些抽吸和吸出装置通常包括用于接收体液的罐。期望的是将罐内的抽吸的流体和装置操作者之间的接触最小化。本发明提供一种罐,该罐具有过滤的、切断装置,以将所抽吸的流体保持在容器内。
发明内容
本发明涉及一种罐,所述罐包括具有入口的第一流体室和具有出口的第二流体室。防喷溅挡板布置在第一流体室和第二流体室之间。防喷溅挡板具有贯穿防喷溅挡板形成的孔口,以允许流体从第一流体室流入到第二流体室。吸收阀布置在第二流体室内并且进一步接合出口。吸收阀在与来自第一流体室的流体接触时限制流体的透过性,以防止流体流动通过出口。
附图说明
图1是根据本发明的罐的透视图;
图2是沿着图1的线2-2截取的横截面视图;以及
图3是类似于图2的视图,示出了扩展的吸收阀;
具体实施例
现在参照附图,根据本发明的罐由附图标记10来表示。如图1和2所示,罐10具有主体部12,所述主体部12包括限定内部容器腔16的围壁14。内部容器腔16由防喷溅挡板18分开,该防喷溅挡板18限定出第一流体室20和第二流体室22。第一流体室20与接合抽吸管26的入口24流体连通。第二流体室22与出口28流体连通,所述出口28具有真空源连接部30和附接凸缘32。吸收阀34布置在第二流体室22内,并接合附接凸缘32。
如图2所示,防喷溅挡板18包括贯穿所述防喷溅挡板18形成的孔口36,所述孔口36提供第一流体室20和第二流体室22之间的流体连通,并进一步在入口24和出口28之间提供流体路径。孔口36限制与吸收阀34的流体接触,直到流体抽吸需求结束或罐10装满为止。孔口36在图2和3中示出为细长的狭槽,但是可以采用任何合适的开口形状来限制与吸收阀34流体接触。入口24示出为处于与防喷溅挡板18相邻的位置,虽然这样的位置并不是必需的。入口24可以定位在允许第一流体室20和抽吸管26之间的流体连通的任何表面上。第一流体室20示出为在容积上大于第二流体室22。第一流体室20的容积被构造成接收和包含通过抽吸管26抽吸的大量被抽吸的材料。第二流体室22的容积容纳和包含吸收阀34的至少一部分。第二流体室22包括与附接凸缘32间隔开的阀座38。阀座38提供吸收阀34在第二流体室22内的正向(positive)定位。
吸收阀34包括开口端40、阀壁42和闭合端44。阀壁42和闭合端44具有内表面46、外表面48,并且配合限定内部空间50。阀座38抵靠闭合端44的正向定位确保开口端40与附接凸缘32的至少一部分密封接合。开口端40还可以通过阀座38而抵靠第二流体室22内的围壁14坐落。阀座38示出为薄的、鳍状结构,虽然也可以利用其它形状。阀座38的形状允许在闭合端44抵靠阀座38坐落时暴露吸收阀34的更大的表面区域,从而增加流动状态和切断状态之间的时间。
仍旧参照图2,罐10包括从围壁14延伸的管塞52。管塞52可以定位在罐10上的任何便利的位置处。在使用后,管塞52密封或闭合抽吸管26的自由端54,并且提供附加方式以将所抽吸的材料包含在罐10的腔16内。管塞52示出为从围壁14突出以接合抽吸管26的内表面的圆锥形结构。管塞52可以可替代地突入到腔16中并且接合抽吸管26的外表面。罐10可以由透明、半透明或不透明的材料制成。该材料可以是塑料(诸如聚苯乙烯、聚乙烯、聚丙烯、聚氯乙烯、聚碳酸酯)或其它合适的材料。罐10还可以由不透明材料制成,并包括允许看到内容物高度的半透明部分。
如图1-3所示,在操作中,罐10在真空源连接部30处连接至真空源,诸如医学抽吸或吸出装置(未示出)。在真空源连接部30处施加负压来抽空罐10的腔16并将流体(例如诸如血液、唾液、呕吐物、胃内容物之类的体液)或其它材料吸入到抽吸管26中。流体从抽吸管26进入到第一流体室20中,并开始填充其中的容积。随着流体进入到第一流体室20中,泡沫、溅起物或流体积聚导致流体移动到第二流体室22中。流体通过孔口36进入到第二流体室22并且接触吸收阀34。
当流体接触吸收阀34的外表面48时,吸收阀34的材料的流体吸收特性与进入的流体发生反应。吸收阀34的材料可以是具有诸如在烧结珠或缠结细丝之间的填隙空位的多孔材料,从而在其中产生毛细管效应。吸收阀34的材料还可以包括反应物介质。图2示出了处于开口或流动状态的吸收阀,其中阀壁42和闭合端44允许空气从腔16进入内部空间50中并且从出口28离开。图3示出了处于闭合或切断状态的吸收阀34,其中限制流体流动进入出口28。一旦接触流体,阀壁42和闭合端44的材料的填隙空位逐渐减少,从而越来越限制空气和流体的透过性,并且由此限制来自第二流体室22的流体流动。当进入的流体或水与反应物介质发生反应并且空位被压缩或阻塞时,通过内表面46和外表面48之间的阀壁42的厚度的流体流动受到限制。所以,流体流动变慢并且最终停止进入与出口28流体连通的内空间50中。
吸收阀34由具有亲水性或吸湿性的材料制成。吸收阀34的这种流体吸收特性至少部分地通过材料的填隙空位的毛细管作用得到辅助。结构可以由烧结的塑料珠或粉末制成。这种结构可以由具有附加的纤维素胶填料的聚乙烯塑料形成。另外,可以具有多孔结构的任何合适的塑料或聚合物都可以是用以支撑纤维素胶填料的合适的材料替代。纤维素胶填料用作反应物介质以减少填隙空位,从而减慢和停止通过它的流体流动。
在操作中,通过与进入流体的反应机制,吸收阀34可以从流动状态转换至流体受限的切断状态。吸收阀34的多孔材料可以包括反应物,所述反应物变得凝固或填充阀材料的填隙空位。反应物介质或多孔材料自身化学地或者通过材料的吸湿特性而与水或其它流体相互作用,以阻止流体流动通过吸收阀34。材料的反应使得多孔材料在接触抽吸的流体时膨胀,并且逐渐减少细丝结构的间隙,直到流体路径被切断为止。材料的水吸收特性致使吸收阀34内的填隙空位以足以阻止抽吸的体液进入出口28的速率缩减。在不脱离本发明的精神或范围的情况下,对通过其的流体流动产生限制的其它材料状态改变机制也可以用于替代此处描述的那些机制。
虽然参照具体实施例对本发明进行了描述,但是应当理解的是,在不脱离本发明的实质范围的情况下,可以进行各种变化以及用等价物替代其元件。另外,在不脱离本发明的实质范围的情况下,可以进行多种改变以使具体情形或材料适应本发明的教导。因此,本发明并非意在于局限于具体实施例,而是本发明应包括落入权利要求范围内的所有实施例。
Claims (16)
1.一种罐,所述罐包括:
具有入口的第一流体室;
具有出口的第二流体室;
布置在所述第一流体室和所述第二流体室之间的防喷溅挡板,所述防喷溅挡板具有贯穿所述防喷溅挡板形成的孔口,以允许流体从所述第一流体室流动至所述第二流体室;以及
布置在所述第二流体室内的吸收阀,所述吸收阀接合所述出口,所述吸收阀在接触来自所述第一流体室的流体时限制流体透过性,以防止流体流动通过所述出口。
2.根据权利要求1所述的罐,其中,所述入口定位成与所述防喷溅挡板相邻。
3.根据权利要求1所述的罐,其中,所述第一流体室大于所述第二流体室。
4.根据权利要求1所述的罐,其中,所述出口包括延伸至所述第二流体室中的附接凸缘。
5.根据权利要求1所述的罐,其中,所述第二流体室具有与所述出口间隔开的阀座,所述阀座限制所述吸收阀沿着一个方向的扩展。
6.根据权利要求1所述的罐,其中,所述出口包括从所述第二流体室向外延伸的真空源连接部。
7.根据权利要求1所述的罐,其中,所述孔口是细长的狭槽。
8.根据权利要求1所述的罐,其中,所述孔口能够限制流体的一部分从所述第一流体室流入到所述第二流体室中。
9.根据权利要求1所述的罐,其中,所述吸收阀包括形成内空间的阀壁和闭合端,所述内空间接合所述出口。
10.根据权利要求1所述的罐,其中,所述吸收阀具有流体吸收特性。
11.根据权利要求10所述的罐,其中,响应所述流体吸收特性,所述吸收阀在接触从所述第一流体室流出的流体时变得限制流体。
12.根据权利要求10所述的罐,其中,所述流体吸收特性是亲水性。
13.根据权利要求10所述的罐,其中,所述流体吸收特性是吸湿性。
14.根据权利要求1所述的罐,其中,所述吸收阀由聚合物材料制成。
15.根据权利要求14所述的罐,其中,所述聚合物材料是聚乙烯塑料。
16.根据权利要求15所述的罐,其中,所述聚合物材料包括纤维素胶填料。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US12/150,831 | 2008-05-01 | ||
US12/150,831 US8267909B2 (en) | 2008-05-01 | 2008-05-01 | Canister having fluid flow control |
PCT/US2009/042535 WO2009135134A2 (en) | 2008-05-01 | 2009-05-01 | Canister having fluid flow control |
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CN102015006A true CN102015006A (zh) | 2011-04-13 |
CN102015006B CN102015006B (zh) | 2013-12-25 |
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CN2009801154470A Expired - Fee Related CN102015006B (zh) | 2008-05-01 | 2009-05-01 | 具有流体流动控制的罐 |
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US (1) | US8267909B2 (zh) |
EP (1) | EP2268349B1 (zh) |
CN (1) | CN102015006B (zh) |
CA (1) | CA2722587C (zh) |
MX (1) | MX2010011902A (zh) |
WO (1) | WO2009135134A2 (zh) |
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- 2008-05-01 US US12/150,831 patent/US8267909B2/en active Active
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2009
- 2009-05-01 MX MX2010011902A patent/MX2010011902A/es active IP Right Grant
- 2009-05-01 EP EP09739936.4A patent/EP2268349B1/en not_active Not-in-force
- 2009-05-01 CN CN2009801154470A patent/CN102015006B/zh not_active Expired - Fee Related
- 2009-05-01 WO PCT/US2009/042535 patent/WO2009135134A2/en active Application Filing
- 2009-05-01 CA CA2722587A patent/CA2722587C/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
EP2268349A2 (en) | 2011-01-05 |
EP2268349A4 (en) | 2015-06-03 |
WO2009135134A3 (en) | 2010-01-21 |
CN102015006B (zh) | 2013-12-25 |
EP2268349B1 (en) | 2016-07-27 |
US8267909B2 (en) | 2012-09-18 |
CA2722587C (en) | 2013-06-18 |
MX2010011902A (es) | 2010-11-30 |
WO2009135134A2 (en) | 2009-11-05 |
CA2722587A1 (en) | 2009-11-05 |
US20090275905A1 (en) | 2009-11-05 |
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