Endoscope valve having deformable check valve on outer surface of valve main body and endoscope
US11344187B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Aug 11, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/00119
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoscope valve switches connection states of a plurality of conduits formed in an endoscope to supply air or water, and includes: a cap; a rod-shaped shaft; and an attachment member into which the shaft is inserted. The shaft includes a main body portion including a hole portion having a hollow space extending along the longitudinal direction from another end which is a side opposite to a side of the one end, and a check valve configured to control a flow of a fluid in a space extending along the longitudinal direction from between the shaft and the attachment member. The check valve surrounds an outer surface of the main body portion, is exposed to an outside of the main body portion via the hole portion, has a diameter forming an outer periphery which increases toward a side of the other end, and is elastically deformable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.