Test method and apparatus for the presence of microorganism in syringe
US4397945A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1981 |
| Grant date | Aug 9, 1983 |
| Priority date | — |
| Expiry date | Jun 10, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for testing the sterility of the contents of a syringe and the sterility of the internal and external surfaces of a needle connected to the syringe or the contents of a syringe and the sterility of the tip of the syringe nipple (in those cases where the syringe is not fitted with a needle). The needle is inserted into a tube by penetrating a small hole in an adaptor connected to one end of the tube. The adaptor includes a recess so that the syringe and needle can be stably positioned relative to the tube. The tube includes a liquid outlet adjacent to the adaptor so that the liquid contents of the syringe exiting from the needle washes the outside surface of the needle or the tip of the syringe needle before leaving the tube. The liquid leaving the tube is cultured and incubated to determine whether microorganisms are present therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.