Coaxial lead screw drive syringe pump
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 15, 1993
Grant Date -
N/A
app pub date -
Sep 6, 1991
filing date -
Sep 6, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A syringe pump, uses a stepping motor to rotate a lead screw with precision and in turn advance a zero-backlash ball nut or vice-versa to drive the syringe plunger. This invention is designed to eliminate virtually all forces that are not coaxially aligned with the plunger's axis by utilizing a drive shaft kinematically supported on a reference member. The barrel of the syringe is kinematically supported on the reference member with its axis aligned with the axis of the drive shaft. The drive shaft is advanced by the ball nut and drive shaft assembly to drive the plunger which is kinematically supported at one end by the end of the drive shaft and at the other end by the internal wall of the barrel.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully