发明名称 |
Three-way valve for power injection in vascular access devices |
摘要 |
An apparatus for facilitating fluid flow between an internal body structure and a device external to the body comprises a housing having proximal and distal chambers separated from one another by a wall and fluidly connected to proximal port and distal ports. The wall includes a valve selectively sealing first and second openings thereof and a canopy biased toward a sealing position sealingly surrounding the first opening. The bias of the canopy is set to define a first pressure differential at which the canopy is moved out of the sealing position to permit fluid transfer therepast in a first direction. A duck-bill stem extends through the second opening and includes a lumen extending therethrough with walls of the stem being biased toward a sealing position and configured so that, when a second pressure differential is applied at at least a second level, the first end opens to permit flow therepast. |
申请公布号 |
US8337470(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20090361240 |
申请日期 |
2009.01.28 |
申请人 |
PRASAD JAYANTHI;FISK TOM;GRAY JEFF;ANGIODYNAMICS, INC. |
发明人 |
PRASAD JAYANTHI;FISK TOM;GRAY JEFF |
分类号 |
A61M5/00 |
主分类号 |
A61M5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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