Storage and mixing system for pasty cement components and method therefor

US10286370B2 · kind B2 · utility

Assignee

• Heraeus Medical GmbH · DE

Inventors

• Sebastian Vogt · Jena, DE
• Thomas Kluge · Vallendar, DE

Key dates

• Filing date: Mar 7, 2017
• Grant date: May 14, 2019
• Expiry date: Oct 10, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C17/0106
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A storage and mixing system, for pasty two-component polymethyl methacrylate bone cements, comprises a cartridge with a cylindrical interior, a cartridge head that closes an end of said cartridge, a partition wall axially disposed in the cylindrical interior of the cartridge, wherein said partition wall is connected to the circumferential surface of the cylindrical interior of the cartridge and divides the cylindrical interior of the cartridge delimited by the cartridge head into two spatially separate cavities. The first cavity includes a first pasty cement component and the separate second cavity includes a second pasty cement component, two delivery plungers close the two cavities on the side of the cavities opposite the cartridge head. At least two cutting edges are disposed on the front side of the sleeve-shaped connecting means facing the cartridge head, such that the at least two cutting edges cut off the partition wall from the cylindrical inner wall of the cartridge as at least one cut-off strip when the delivery plungers are advanced towards the cartridge head in the cavities with the connecting means, and wherein the sleeve-shaped connecting means comprises a deflecting …