Medical instrument
US4673393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1985 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Dec 24, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/0606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical instrument having a path for receiving a bar-like member and a combination of valves provided in the path. The combination of valves comprises a first disc-like valve having a first slit open only to one of the end faces thereof and a second slit open only to the other of the end faces thereof, the first and second slits crossing each other to form a distance of intersection inside the first valve, and a second disc-like valve disposed in parallel to the first valve and having a slit opening to both end faces thereof. The slit of the second valve crosses the intersection point of the first valve so that the bar-like member passes through the slit of the second valve as well as the intersection of the first valve when it is inserted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.