Injection or sampling site
US5354275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1993 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Sep 13, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/045
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An injection or sampling site adapted to receive a blunt cannula includes a housing having an outside end with a passageway extending inwardly from the outside end, the passageway defining an axial direction; and an elastomeric septum closely received in the passageway of the housing. There is a slit extending through the septum generally in the axial direction which is formed by a hole through the septum that is flattened against itself to seal against itself when the septum is assembled in the housing. Either the septum-receiving portion of the housing or the septum itself has a generally elliptical cross-section to preferentially compress the hole in the septum to form the slit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.