Flexible member for resisting retrograde flow
US10238791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/2433
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure is directed to a valve structure that comprises a flexible structure having a distal portion configured for attachment to a first member and a proximal portion configured for attachment to a second member. The flexible structure is configured such that when the first member is extended distally relative to the second member, the flexible structure adopts a reduced width profile and such that when the first member is retracted proximally relative to the second member to a point of maximal retraction, the flexible structure adopts an expanded width profile, which is more resistant to deformation due to fluid pressure in a proximal direction than it is to deformation due to fluid pressure in a distal direction. The present disclosure is also directed to devices and methods pertaining to such a valve structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.