Disposable barrel dental impression material syringe
US5324273A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/0026
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A disposable barrel dental impression syringe having a rotatable malleable needle cannula. A disposable barrel is fitted with a malleable needle cannula that is seated to permit easy rotation thereof. A handle is threaded onto the open end of the barrel. A plunger is fitted through the handle and barrel forming a syringe for the extrusion of dental impression material. The needle cannula is positioned within the discharge end of the barrel in such a way to permit easy rotation, yet prevent pushing or pulling the needle cannula through the discharge end of the barrel. This permits exact positioning of the needle cannula for placement of dental impression material. Additionally, only the barrel portion of the syringe being disposable, the precision and feel of a high quality impression syringe is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.