TIME-INDICATING SYRINGE MIXING DEVICES AND RELATED METHODS FOR STORING AND DISPENSING TWO-PART DENTAL COMPOSITIONS

摘要

Time-indicating syringe mixing systems (100) for mixing, storing, and dispensing a two-part dental composition (108a, 108b) that becomes less stable upon mixing including a first plunger (102) comprising an elongate stem (110) and a plug (112) at a distal end of the elongate stem (110). A hollow chamber (104) is configured to contain a first component (108a). A hollow chamber of syringe barrel (106) is configured to contain a second component (108b). First plunger (102) is slidably disposed within hollow second plunger (104), which is slidably disposed within syringe barrel (106). A substantially flat label surface (114) is formed into cylindrical elongate stem (110) near a proximal end of cylindrical elongate stem (110). Providing a label surface (114) facilitates marking the date when components (108a, 108b) are mixed, so that thereafter shelf life may be easily monitored.