Pressure activated valve for high flow rate and pressure venous access applications
US11679248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2016 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jan 13, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7881
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A valve comprises a first housing including a first lumen extending therethrough and defining a first disk-facing surface and a second housing including a second lumen extending therethrough and defining a second disk-facing surface, the second housing being mated to the first housing so that the second disk-facing surface faces the first disk-facing surface in combination with a flexible disk gripped between gripping portions of the first and second disk-facing surfaces, the disk including a slit extending therethrough which, when acted upon by a fluid pressure of at least a predetermined threshold level opens to permit fluid flow between the first and second lumens and which, when acted upon by a fluid pressure less than the threshold level remains sealed preventing fluid flow between the first and second lumens and a relief well between opposing portions of the first and second housings radially outside the gripping portions, a width of the relief well exceeding a width of a radially outer portion of the flexible disk so that the radially outer portion of the disk is free to move therewithin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.