Device for mixing and storing polymethylmethacrylate bone cement
US10517662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2016 |
| Grant date | Dec 31, 2019 |
| Priority date | — |
| Expiry date | Jan 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device and methods mix polymethylmethacrylate bone cement and/or store the starting components of the bone cement. The device comprising: a cartridge with an internal space for mixing the bone cement that is closed on one side by means of a mobile dispensing plunger; a monomer container for a monomer liquid and/or a connector for attachment of a monomer container for a monomer liquid such that the monomer container can be opened appropriately in the device such that the monomer liquid flows from the monomer container into the device; a connecting conduit through which the monomer liquid can be guided into the internal space of the cartridge. A first hollow cylinder is connected to the connecting conduit and a second hollow cylinder is connected, via a vacuum conduit, to the internal space of the cartridge, whereby a pumping plunger is shiftable axially in the first hollow cylinder and is arranged in the first hollow cylinder and a vacuum plunger that is shiftable axially in the second hollow cylinder is arranged in the second hollow cylinder, whereby the pumping plunger and the vacuum plunger may be moved simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.