Medical instrument
US4610665A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 1984 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Jan 3, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0686
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical instrument comprises a main body having a path formed therethrough, through which a tubular member is insertable or drawable. A valve body is provided in the path of the main body, maintaining at least a liquid-tight state with the rod-like member, when the path is opened by the rod-like member inserted through the path, and closing the path at least in the liquid-tight state, when the rod-like member is not inserted through the path. The valve body has two end faces. The valve body is formed with a first slit openable in one of the end faces and a second slit openable in the other of the end faces. The first slit and the second slit cross each other in the valve body. In consequence, rod-like members being of widely varied outer diameters are inserted through the path of the main body and held therein in a liquid-tight state to thereby reliably prevent blood leakage. Also, blood flow-out when the rod-like member or members are abruptly withdrawn from the path of the main body is reliably prevented. Further, a single valve body is provided so that the construction of the medical instrument can be simplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.