Motorized syringe for use with two types of dental anesthetic solution-containing cartridges

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United States of America Patent

PATENT NO 8840585
APP PUB NO 20140023986A1
SERIAL NO

14009752

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Abstract

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A motorized syringe for use with two types of dental anesthetic solution-filled cartridges, having a plunger plug in the 1.8 ml cartridge pushed by a push rod by a length required to push a plunger plug in the 1.0 ml cartridge. The syringe includes a cartridge holder for use with 1.0 ml and 1.8 ml cartridges, the push rod having a 1.0 ml position and a 1.8 ml position drawn back from the 1.0 ml position so that push rod movement can end at a common terminal position for both, a sleeve adapted to receive the push rod rear end when pushed back from the common terminal position, and to be not interfered with by the push rod's rear end when it is in the 1.0 ml position, the sleeve being pushed rearward with the push rod's rear end when pushed back to the 1.8 ml position.

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Patent Owner(s)

Patent OwnerAddress
GC SHOWAYAKUHIN CORPORATION1-28-34 HONGO BUNKYO-KU TOKYO 113-0033

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haraguchi, Mitsuhiro Shiraoka, JP 10 90
Hayashi, Renji Matsudo, JP 6 76
Kato, Yoshinori Matsudo, JP 126 1209
Kawasaki, Yoshihiko Tokyo, JP 14 132
Shibuya, Mutsumi Yokohama, JP 9 117
Tanaka, Fumio Kawasaki, JP 31 476

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