Syringes for dispensing multi-component material

US8647115B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Andreas J. Boehm · Schongau, DE
• Marc Peuker · Schorndorf, DE
• Alexander Walter · Hemau, DE
• Brigitte Rohmer · Landsberg am Lech, DE

Key dates

• Filing date: Feb 8, 2010
• Grant date: Feb 11, 2014
• Expiry date: Feb 8, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C17/00553
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A syringe for dispensing a multi-component material. The syringe can include a cartridge having a first end and a second end, and respective compartments for components of the multi-component material; a static mixer connected to the first end of the cartridge, the mixer having a dispensing outlet; and a plunger assembly that is movable into the syringe cartridge at the second end to dispense material from the first end. A connection between the static mixer and the first end of the syringe cartridge includes a flow-directing mechanism having a venting position in which the cartridge compartments are cut off from the static mixer and are in communication independently with respective venting outlets, and a dispensing position in which the cartridge compartments are in communication with the static mixer and are cut off from the venting outlets.