Reciprocating syringes
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United States of America Patent
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Oct 10, 2006
Grant Date -
Dec 15, 2005
app pub date -
Apr 29, 2005
filing date -
May 3, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a syringe device comprising: a first syringe comprising: a first syringe barrel including a first opening at a distal end thereof through which fluid may be forced or aspirated; and a first syringe plunger sliding within the first syringe barrel for forcing fluid through the first syringe barrel opening, the first syringe plunger including a stopper at a distal end thereof which sealingly and slidably engages the first syringe barrel; a reciprocating member which moves along a track parallel to the axial direction of the first syringe; and a reciprocating device connecting the first syringe plunger to the reciprocating member so that when one member of the group consisting of the first syringe plunger and the reciprocating member moves distally, the other member of the group is forced to move proximally. The present invention also provides a syringe device where one member of the group consisting of the first syringe plunger and the reciprocating member moves proximally, the other member of the group is forced to move distally.
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