Syringe for medicinal purposes

US5803918A · kind A · utility

Assignee

• Becton, Dickinson and Company · US

Inventors

• Helmut Vetter · Ravensburg, DE
• Thomas Otto · Würzburg, DE
• Eugen Frasch · Markdorf, DE
• Ralf Bitdinger · Saint-Martin-d'Hères, FR

Key dates

• Filing date: Apr 2, 1997
• Grant date: Sep 8, 1998
• Expiry date: Apr 2, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3139
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The syringe for medicinal purposes features a syringe barrel (1), one end of which is formed as an adapter (2) for a cannula or a closure (3), e.g., in the form of a tip cap, and of a plunger (4), arranged within the syringe barrel (1), and movable by a piston rod (5). At the end of the syringe barrel (1) facing away from the adapter (2), a plunger brake (6) is arranged, which is formed by a rest piece surrounding the syringe barrel (1) and connected removably to it. The rest piece has a projection extending into the lumen of the syringe barrel (1), which forms a stop for the side of the plunger (4) away from the adapter (2).