Pressure-variable valve device and set-pressure adjusting device for the valve device
US6485449B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Mar 22, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7906
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A pressure-variable valve device which is adapted to be embedded in the human body and which is capable of changing a difference in pressure between an inlet-side and an outlet-side duct, the valve device including a rotating member capable of rotating around a central axis in directions to vary a set pressure for a valve, and a rotation control mechanism far controlling the rotation of the rotating member wherein the rotation control mechanism includes permanent magnet structure supported by the valve-device main body as to be capable of making a linear reciprocal translation in directions, and displacement transmission mechanisms, for rotating the rotating member in the direction corresponding to the direction of the translation of the permanent magnet structures. A set-pressure adjusting device includes a magnetic field generating mechanism which generates a magnetic field in which the permanent magnet structures cause the rotating member to rotate in the same direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.