1
Karl R Leinsing: Needleless connector valve. IVAC Holdings, Fulwider Patton Lee & Utecht, October 14, 1997: US05676346 (260 worldwide citation)

A valve mechanism for a needleless connector employs a deformable piston having a piston head of elliptical cross-section with a marquise-shaped bore formed along its longitudinal axis wherein the major axes of the respective generally elliptical shapes are oriented perpendicular to one another. The ...


2
Finburgh Simon E, Morris Matthew G, Warner Eric A: Appareil de detection dair dans un conduit, Air-in-line sensing apparatus. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199157 (1 worldwide citation)

An air-in-line sensing apparatus (10) for use with a parenteral fluid administration set (34) to detect the passage of air through a fluid conduit (12). The apparatus comprises a first housing having a first arcuate section mounting a first transducer adjacent the first arcuate section and a second ...


3
Butterfield Robert D: Systeme de detection docclusions se produisant en amont, Upstream occlusion detection system. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 6, 1997: CA2230844

A pumping segment of a fluid line alternately in fluid communication with the upstream and downstream portions of the fluid line connects a fluid supply to a fluid receiver. A pressure sensor located downstream of the segment monitors the pressure during the segment's communication with the upstream ...


4
Holdaway Charles R: Systeme de commande de moteur pas-a-pas a boucle ouverte, Open-loop step motor control system. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 20, 1997: CA2231644

A motor control system that reduces noise while reducing power requirements but providing sufficient torque. A one-phase-on drive mode modified to microstep between "one phase on" positions is used to accelerate the motor in a non-linear manner to a maximum speed. The microstep drive modes have a co ...


5
Butterfield Robert D, Voss Gregory I: Systeme damelioration de luniformite dun ecoulement, System for increasing flow uniformity. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199405

A pumping mechanism (42) moving in movement increments (80) is controlled to space those movement increments in direct proportion to the volume (76) resulting from each movement increment. In a further aspect, movement increments are grouped to result in approximately equal volumes per group. The me ...


6
Morris Matthew G, Clemens Charles E, Martin Stephen A, Minami Don S, George William R, Howard Paul L, Laiterman Lee H: Segment de pompage amenage, Engineered pumping segment. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199406

An engineered pumping segment (10) for facilitating efficient and accurate peristaltic pumping of fluids, providing regulation of fluid flow and providing an effective interface for sensing fluid line pressure in a peristaltic pump system. The engineered pumping segment includes an elastomeric membr ...


7
Warner Eric A: Systeme dalimentation de fluide avec liaison de montage, Fluid delivery system with mounting linkage. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199156

A fluid delivery system in which the pressure platen for a fluid conduit is fixedly mounted to the pump and the pumping mechanism is movable in relation to the platen (32) to control the force exerted on the conduit. A moving system comprising a four-bar linkage (48, 50, 52, 54) retains the movable ...


8
Minami Don S, Nason Kevin S: Regulateur decoulement a coulissement, comportant une voie a rainure de calibre variable, Sliding flow controller having channel with variable size groove. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199160

A sliding flow controller for controlling flow through a pumping segment (10) used in a fluid delivery system. The flow controller includes a slider (18) that travels along a channel defined by an elastomeric membrane (12) and a variable size groove (60) formed in a rigid component. The slider inclu ...


9
Holdaway Charles R, Warner Eric A: Systeme pour determiner la position dun moteur dans un appareil biomedical, System for determining motor position in a biomedical device. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199161

A drive member of a peristaltic pumping mechanism includes a disk (24) that rotates with the drive member (18) and has two transparent sectors (27, 26) and two opaque sectors (28, 29) alternating with the transparent sectors. As a stepper motor (19) rotates the drive member to pump fluid (13), a sin ...


10
Butterfield Robert D, Tseo Gus G: Recipient pressurise avec systeme dejection de bulles dair, Pressure vessel with air bubble ejection system. Ivac Holdings, Cardinal Health 303, SMART & BIGGAR, March 21, 1996: CA2199283

An air injection system usable with a pressure vessel (36) for a pumping segment (10) for fluid flow and for incorporation into a fluid delivery system. The air ejection system includes a vane (64) positioned directly in the fluid flow path to redirect flow into the pressure vessel to wash out air b ...