SELF-CONTAINED DISPOSABLE MICRO-ABRASIVE BLASTING TIP FOR DENTAL APPLICATIONS AND METHOD

摘要

The present invention is a micro-abrasive blasting device (75) constructed from a disposable pipette structure (80) comprising a delivery conduit (30) extending from a delivery conduit inlet (35) through a tapered section (33) to form a delivery conduit outlet (37) and a inlet port (27); contiguous pipette structure (80) expands from inlet port (27) to form a hollow bulb mixing chamber (23) and then narrows to form a discharge port (29) section; a discharge conduit (10) is in fluid communications with discharge port (29) and extends from a discharge conduit inlet (12) internal to mixing chamber (23) to a discharge conduit outlet (14) external to mixing chamber (23); a particulate matter (50) is disposed within mixing chamber wall (25); discharge conduit inlet (12) abuts inlet port (27) preventing particulate matter (50) from exiting mixing chamber 23. A separation gap (45) between the delivery conduit outlet (37) and discharge conduit inlet (12) is created as discharge conduit (10) is displaced so discharge conduit inlet (12) no longer abuts inlet port (27); As pressurized-gas is supplied to micro-abrasive blasting device (75) through the delivery conduit inlet (35), the pressurized-gas flows through the delivery conduit (30) and out of the inlet port (27), into mixing chamber (23). As flow is initiated, particulate matter (50) instantaneously mixes with the gas-steam within hollow resilient bulb mixing chamber (23) and the powder-gas mixture flows through discharge conduit (10) to strike target surface (40).