发明名称 |
QUICK-OPENING VENT VALVE FOR PHACO FLUIDICS ASPIRATION SYSTEM |
摘要 |
Apparatuses, systems, and methods are provided for rapid venting of vacuum to mitigate occlusion break surge within a phaco fluidics aspiration system. The aspiration system may utilize a positive displacement pump to generate flow and a vent valve to vent or moderate the pressure or vacuum level based on pressure sensor feedback detected within the eye and at the pump. Embodiments described herein provide a quick-opening vent valve that produces a quick-opening flow response upon angular rotation of the quick-opening vent valve. The flow performance at the quickopening vent valve is improved by increasing the effective cross-sectional area of the valve at near-closed valve positions. In particular, the increase in the cross-sectional area is achieved by forming a concaving edge portion to complement a circular edge of and opening of a flow channel formed through the vent valve. |
申请公布号 |
WO2016100083(A1) |
申请公布日期 |
2016.06.23 |
申请号 |
WO2015US64985 |
申请日期 |
2015.12.10 |
申请人 |
NOVARTIS AG;LAYSER, GREGORY S.;WHITE, DANIEL G.;YALAMANCHILI, SATISH |
发明人 |
LAYSER, GREGORY S.;WHITE, DANIEL G.;YALAMANCHILI, SATISH |
分类号 |
A61M1/00;A61M39/22;F16K5/12 |
主分类号 |
A61M1/00 |
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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