1
George Bowman, Grace Esche: Battery gauge for a battery operated infusion pump. Baxter International, P E Schaafsma, F C Kowalik, June 9, 1998: US05764034 (112 worldwide citation)

The present invention provides an estimate of the amount of time left on the battery by monitoring not only the voltage available from the battery, but also the amount of current flowing from the battery. It has been found that periodic sampling of the battery voltage and current drain enables accur ...


2
Robert L Anderson, Daniel C Colesworthy III, Warren P Heim, Larry Blankenship: Pump chamber back pressure dissipation apparatus and method. Baxter International, F C Kowalik, P E Schaafsma, T D Bratschun, August 19, 1997: US05658133 (104 worldwide citation)

A medical infusion pump (10) for delivering liquids to a patient includes an elastomeric pump chamber (140) contractable between a refill position and a discharge position. An inlet valve (122) is operatively associated with an elastomeric inlet (142) supplying liquid to the pump chamber (140). The ...


3
Michael D McMahon, Andre M Rustad: Anti-siphon flow restricter for a nebulizer. Baxter International, F C Kowalik, T D Bratschun, December 3, 1996: US05579757 (48 worldwide citation)

A nebulizer (10) has a housing (12,14) including an aerosol outlet (22) and a bottom wall (52) with a side wall (50) connected thereto defining a reservoir (54) for a liquid (106). A gas jet (58) extends along a longitudinal axis (60) of the housing (12,14) and through the bottom wall (52) of the ho ...


4
Geoffrey Hutchins, Tim Allen: Infusion pump monitoring encoder/decoder. Baxter International, P E Schaafsma, F C Kowalik, June 20, 2000: US06078273 (13 worldwide citation)

The present invention provides a method and apparatus for monitoring an infusion pump (10). The method and apparatus provides an encoder (101) which is used with a motor (65) of the infusion pump (10) and a monitoring method which effectively provides rotational directional information. The present ...


5
Ludwig Wolf Jr, William Bratten, John Foley: Apparatus and method for inactivating viral contaminants in body fluids. Baxter International, M C Mayo, F C Kowalik, Bell Boyd & Lloyd, October 5, 2004: US06800432

A method and apparatus for inactivating viruses in a body fluid. A mixture including a therapeutically effective amount of methylene blue and an amount of a body fluid is formed in a container under sterile conditions and then the container is irradiated with a light field of a suitable intensity an ...