Electrically powered and heated endodontic syringe
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United States of America Patent
Stats
-
Aug 4, 1987
Grant Date -
N/A
app pub date -
Apr 11, 1986
filing date -
Apr 11, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An endodontic syringe for injecting thermoplastic material, such as gutta percha into a root canal cavity. The syringe includes a drive motor and mechanism for reversible axial translation of a plunger, a removable gutta percha cartridge and needle, and a heating element surrounding the cartridge to heat the gutta percha to a fluid condition. Forward movement of the plunger, against a piston within the cartridge, ejects gutta percha for the cartridge and needle. Reverse movement of the plunger returns it to its starting position, at which the used cartridge can be removed and replaced. The cartridge and needle are of aluminum or aluminum alloy.
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