Patent application number | Description | Published |
20090024082 | Time-Indicating Syringe Mixing Devices And Related Methods For Storing and Dispensing Two-Part Dental Compositions - Time-indicating syringe mixing systems for mixing, storing, and dispensing a two-part dental composition that becomes less stable upon mixing including a first plunger comprising an elongate stem and a plug at a distal end of the elongate stem, a hollow first chamber configured to contain a first component, a hollow second chamber configured to contain a second component, and means for indicating a recorded date when a first component initially contained within the hollow first chamber is mixed with a second component initially contained within the hollow second chamber. The inventive syringe mixing systems may be configured as syringe-in-syringe systems and/or syringe-to-syringe systems. | 01-22-2009 |
20100307935 | SYRINGE-IN-SYRINGE HOLLOW INNER BARREL/PLUNGER WITH INTEGRAL SEAL AND RUPTURABLE MEMBRANE AND RELATED KITS, SYSTEMS, AND METHODS - A plunger-barrel apparatus is adapted for use within a syringe-in-syringe mixing system for mixing a two-part composition (e.g., a dental composition). A hollow plunger-barrel body has a continuous cylindrical wall defining an internal chamber for containing a first component. The body includes a plunger receiving end and a dispensing end. An integral sealing plug and rupturable membrane is disposed at the dispensing end of the body and include a sealing plug portion and a rupturable membrane portion that are integrally formed together as a single piece (e.g., formed of a single piece of elastomeric material). An associated syringe-in-syringe mixing system includes a first plunger, the hollow plunger-barrel body as described above adapted to contain a first component, and a syringe barrel configured to contain a second component. When assembled, the first plunger is slidably disposed within the hollow plunger-barrel body, and the plunger-barrel body is slidably disposed within the syringe barrel. The two components are initially separated by the rupturable membrane. | 12-09-2010 |
20100323322 | Syringe-in-Syringe Hollow Inner Barrel/Plunger With Integral Seal and Rupturable Membrane and Related Kits, Systems and Methods - A hollow inner plunger ( | 12-23-2010 |
20110311938 | NON-CUSTOM DENTAL TREATMENT TRAYS HAVING IMPROVED ANATOMICAL FEATURES - A non-custom, dental tray device includes a moisture-resistant barrier layer having a labial-buccal wall, a lingual wall, and a bottom wall. The dental tray device includes at least one of the following structural features to enhance the fit of the device; (1) the bottom wall includes an abrupt reduction of width at a location corresponding to where the first bicuspid meets the canine; (2) a bottom wall in the posterior region having a width that is equal to or less than the width of the bottom wall in the anterior region, with no lingual wall in the posterior region; or (3) a transition portion between the bottom wall and either the labial-buccal wall or the lingual wall has a larger radius of curvature as compared to a radius of curvature at a transition portion between the bottom wall the other of the labial-buccal wall and the lingual wall. | 12-22-2011 |
20120064481 | COMPOSITE DELIVERY SYSTEM - A syringe delivery system for dispensing a highly viscous material through a syringe delivery opening includes a syringe barrel having a delivery opening, a plunger stem including a threaded shaft that threadably engages a proximal end of the syringe barrel for selectively dispensing a viscous material through the delivery opening, and a sheath. The sheath is rigidly attached with the plunger stem so that the plunger stem and sheath rotate together in unison relative to the syringe barrel. The sheath and syringe barrel may enclose the plunger stem. In order to dispense a viscous material, the syringe barrel is rotated relative to the sheath, causing the syringe barrel to be progressively received within the sheath and simultaneously forcing the plunger stem further into the syringe barrel so as to dispense a viscous material from the delivery opening. | 03-15-2012 |
20130130194 | NON-CUSTOM DENTAL TREATMENT TRAYS HAVING IMPROVED ANATOMICAL FEATURES - A non-custom, dental tray device includes a moisture-resistant barrier layer having a labial-buccal wall, a lingual wall, and a bottom wall. The dental tray device includes at least one of the following structural features to enhance the fit of the device; (1) the bottom wall includes an abrupt reduction of width at a location corresponding to where the first bicuspid meets the canine; (2) a bottom wall in the posterior region having a width that is equal to or less than the width of the bottom wall in the anterior region, with no lingual wall in the posterior region; or (3) a transition portion between the bottom wall and either the labial-buccal wall or the lingual wall has a larger radius of curvature as compared to a radius of curvature at a transition portion between the bottom wall the other of the labial-buccal wall and the lingual wall. | 05-23-2013 |
20130130197 | SYRINGE-TO-SYRINGE MIXING SYSTEMS AND RELATED APPARATUS AND METHODS - A hollow syringe barrel for use in syringe mixing systems for mixing a two-component composition. A hollow body of the syringe barrel includes a proximal end, a distal end, and continuous cylindrical wall defining an internal chamber for containing a first component. A rupturable membrane disposed at the distal end caps and seals off a single dispensing orifice. A second syringe barrel can be coupled to the distal end of the hollow syringe barrel to form a syringe-to-syringe mixing system. First and second plungers disposed within the hollow syringe barrel and second syringe barrel, respectively, are used to mix and cycle back and forth first and second components initially contained within the hollow syringe barrel and second syringe barrel. The two components are initially separated by the rupturable membrane, which is irreversibly ruptured by applying sufficient pressure to the first plunger within the hollow syringe barrel prior to mixing. | 05-23-2013 |
20160022381 | CHEEK RETRACTOR DEVICE AND METHOD - Cheek retraction devices including an upper frame element configured to bear against and retract soft oral tissue from one or more teeth of an upper dental arch, a lower frame element configured to bear against and retract soft oral tissue from one or more teeth of a lower dental arch. The upper and lower frame elements may each include left and right frame portions wherein the upper and lower left frame portions are joined to one another to form a v-shaped hinge on one side of the frame, while upper and lower right frame portions are joined to one another to form a v-shaped hinge on another side of the frame. The v-shaped hinges on opposed sides permit the upper and lower frame elements to be at least partially folded toward each other. A posterior frame element may be provided extending between the v-shaped hinges. | 01-28-2016 |