Cartridge dispensing system for dental material
US5722829A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1995 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Oct 24, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C1/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A dispensing system for dental material made of two components has a dual chamber cartridge that releasably connects to an applicator. The chambers of the cartridge are located in an over-under orientation relative to the user's grip on the applicator, enabling the system to be especially useful for placing dental material in regions of the patient's oral cavity that are difficult to access. Certain embodiments of the invention include a static mixing assembly having a swivelable cannula, and an exit conduit of the mixing assembly is optionally curved along its length. Other aspects of the invention relate to a reusable hygienic sheath useful for covering a dual chamber cartridge as well as a single chamber cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.