Endoscope conduit switching device and endoscope
US11805979B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2020 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jun 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope conduit switching device includes: an attachment to be attached to an endoscope; a movable spring bearing that is movably held by the attachment and that has a rib that is cylindrical; a movable piston that has a rib receiver groove into which the rib is inserted and that is movable to be inserted into and removed from a conduit of the endoscope; and a shaft that is movably held by the movable spring bearing; a cap that is fixed to one end of the shaft; and a first coil spring configured to bias the movable spring bearing and the cap in directions away from each other, wherein a side surface of the rib of the movable spring bearing and a side surface of the rib receiver groove of the movable piston are at least partly joined with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.