Devices and methods for injection of media into human and animal tissue

US8715245B2 · kind B2 · utility

Assignee

• W&H Dentalwerk Bürmoos GmbH · AT

Inventors

• Gunter Teufelberger · Bürmoos, AT
• Hannes Wagner · Reutte, AT
• Christine Oberascher · Wien, AT
• Stefan Kapeller · Wien, AT
• Rainer Sigl · Puchheim, DE
• Udo Hoermann · Oberalm, AT

Key dates

• Filing date: Jul 24, 2008
• Grant date: May 6, 2014
• Expiry date: Apr 13, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3289
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Embodiments of a medical hand-grip element for injection of a substance from an ampoule, comprise a drive device for driving the ampoule and the injection needle, a delivery device for delivering the medicinal substance out of the ampoule and a coupling device for rotationally fixed coupling of the ampoule with the injection needle and for preventing a relative movement between the ampoule and the injection needle is disclosed. Embodiments of injection systems, injection units, injection needles and handling methods for them are also disclosed in which the risk of injury and contamination for the user is reduced by providing approaches for covering the ends of the cannulas of the injection needles during a number of handling steps.