Dental syringe
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United States of America Patent
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Oct 3, 2017
Issued Date -
N/A
app pub date -
Sep 11, 2013
filing date -
Sep 28, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A dental syringe that facilitates the expulsion of air from a syringe body when dental material is injected into the syringe body from a discharge port of the syringe body and the discharge of the dental material from the syringe body during use for treatment. The syringe includes a syringe body, a plunger, and an O-ring that is mounted in an engagement groove formed at a front end portion of the plunger. The engagement groove includes a shallow groove at the front end side and a deep groove at the rear end side. When the dental material is injected into the syringe body, the O-ring engages with the shallow groove, and when discharging the dental material, the O-ring engages with the deep groove.
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Family
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