Apparatus for inserting catheters or endoscopic devices into a body cavity
US8591520B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | May 1, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/2433
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for inserting an elongated device into a body cavity has a valve having a longitudinal axis. The valve is provided with a housing having a cup-shaped recess and a base, a first channel section provided in said base, a plunger having an end face, said plunger being at least with its end face inserted into and displacable within the cup-shaped recess, a second channel section provided in the plunger, and a hollow cylindrical elastic seal arranged within the cup-shaped recess between said base and said end face, said seal having an outer face and an inner face defining there between a cross section of the seal, a third channel section provided in the seal and surrounded by the inner face. The third channel section forms together with the first channel section and the second channel section a central channel, said central channel extending and being continuous along said longitudinal axis. Said seal is provided with a change in said cross section in a region along said longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.