Apparatus for the detachable connection of a piston with a piston plunger
US4144885A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1977 |
| Grant date | Mar 20, 1979 |
| Priority date | — |
| Expiry date | Aug 1, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/31515
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for the detachable connection of an axially to-and-fro movable piston of a syringe with a piston rod or plunger, comprising at least two holder brackets arranged in mutually spaced relationship from one another at the piston plunger and formed of a spring wire, detachably secured with said piston plunger. Each holder bracket essentially comprises two respective axially extending webs and a connection element or piece arranged transversely with respect to said webs. The piston of the syringe possesses a headpiece formed as a substantially truncated cone and equipped with a contact edge engaged by said connection pieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.