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Attorney: Thibault; Harry G., Breininger; Thomas M.


Number of patents: 7
Last date: September 02, 1997

NumberTitleIssue Date
5664048Speed control circuit for a DC motor
A speed control circuit for a DC motor includes a digital-to-analog (D/A) converter, a regulator/controller, and a control circuit which applies a compensating current to the DC motor that compensates for variations in loading applied to the motor. The re...
09/02/1997
5496273Automated drug infusion system with autopriming
A pumping system for positive displacement, volumetric liquid control includes a pump having a pumping chamber with a pumping chamber inlet and a pumping chamber outlet. The pumping system further includes a liquid supply inlet for receiving liquid from a...
03/05/1996
5474546Dripless cannula system usable with a sampling container for fluid sampling and operable to minimize fluid loss at a fluid sampling site
A dripless cannula system usable with a syringe or other fluid container in a fluid sampling procedure and operable to minimize retention of residual fluids at a sampling site following the sampling procedure. In the preferred embodiment, a vacuum chamber...
12/12/1995
5462256Push button flow stop useable with a disposable infusion pumping chamber cassette
A push button flow stop is mounted on a disposable infusion pumping cassette provided for use with a drug infusion pump. The flow stop is operative to enable or to block fluid flow through the cassette in a first mode and to monitor fluid pressure in the ...
10/31/1995
5445621Drug identification and security apparatus for infusion and pumping systems
A drug identification and security apparatus usable in conjunction with an electronic drug delivery system having at least one drug channel therein, the apparatus providing a first interlock mechanism between a locking member of the apparatus and the drug...
08/29/1995
5406301High reliability display
A character display in which failures are evident. Selected segments of a seven-segment LCD are activated by control signals supplied through selected fore plane and back plane traces. By coupling specific ones of the fore plane and back plane control sig...
04/11/1995
5396925Anti-free flow valve, enabling fluid flow as a function of pressure and selectively opened to enable free flow
A bi-directional cracking valve that can be selectively opened. Bi-directional cracking valve (10, 70) is formed using an elastomeric membrane (34). Centered within the elastomeric membrane is a slit (36) that remains closed, blocking fluid flow through t...
03/14/1995
 
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