1
Geoffrey S Siegel, Karl R Leinsing: Needleless connector. Ivac Corporation, Fulwider Patton Lee & Utecht, August 27, 1996: US05549577 (218 worldwide citation)

A needleless connector allowing infusion and withdrawal of fluid in medical applications is disclosed. The injection site has a housing which contains a blunt cannula within it. An elastomeric pre-slit plunger is movably carried within the housing by the housing and said blunt cannula. Insertion of ...


2
Henri J R Maget, Paul K Krejci: Fluid delivery micropump. IVAC Corporation, February 20, 1990: US04902278 (183 worldwide citation)

A prime mover module used in a fluid delivery micropump, especially for pharmaceutical purposes, transports an electrochemically active material, such as oxygen, at a steady rate across an ion exchange cell to apply external pressure to a collapsible reservoir and expel fluid therefrom. An air-actua ...


3
Donald L Millerd: Ambulatory drug delivery device. IVAC Corporation, Fulwider Patton Rieber Lee & Utecht, March 29, 1988: US04734092 (182 worldwide citation)

A device for infusing a drug into an ambulatory patient, the drug being contained in a transparent spiral conduit which is embedded in a disposable flexible casting conformingly adhered to the patient's body, includes a reusable micropump module which is detachably mounted in a collar valve on the c ...


4
Ronald S Conero, Stephen H O Leary: Syringe plunger driver. IVAC Corporation, Fulwinder Patton Lee and Utecht, August 13, 1996: US05545140 (145 worldwide citation)

A plunger driver system which engages a plurality of different sizes of syringes. A pushing surface includes a detector to determine syringe plunger presence. In the event that the plunger is not present and the pump is operating, a processor provides an alarm and may stop the pump motor. Arms retai ...


5
David B Doan: Fluid line condition detection. IVAC Corporation, Fulwider Patton Lee & Utecht, October 18, 1994: US05356378 (129 worldwide citation)

A compliant chamber is formed in a fluid line which connects a fluid supply to a fluid receiver. The compliant chamber is alternately in fluid communication with the upstream and downstream segments of the fluid line. When the chamber communicates with the upstream segment it receives and stores flu ...


6
Heinz W Georgi, Oliver J Smith, Robert Butterfield: Method and system for upstream occlusion detection. IVAC Corporation, Fulwider Patton Lee & Utecht, March 17, 1992: US05096385 (124 worldwide citation)

The method and system for detecting occlusion in a fluid line upstream of a pump concerns a fluid pump with a pump cycle in which the upstream pressure of the fluid line is communicated to the downstream portion of the fluid line. A pressure sensor located downstream of the pump is capable of measur ...


7
Adib G Daoud: Pump mechanism having a drive motor with an external rotor. IVAC Corporation, Fulwider Patton Lee & Utecht, August 30, 1994: US05342180 (121 worldwide citation)

A pump mechanism using a drive motor having an external rotor. In one case, cams are mounted on the external surface of the rotor. Cam followers or peristaltic fingers engage the cams and move linearly in response to the rotational cam motion. The cam surfaces are rotated from adjacent cam surfaces ...


8
Kenneth B Parker: Infusion and blood chemistry monitoring system. IVAC Corporation, Fulwider Patton Rieber Lee & Utecht, March 4, 1986: US04573968 (120 worldwide citation)

A patient infusion and blood chemistry monitoring system is provided for controlled fluid infusion with intermittent interruption for automated drawing of a patient blood sample into contact with one or more electrochemical sensors to obtain blood chemistry determinations, such as measurements of bl ...


9
Alvis J Somerville, Richard B Conley, Robert B Truitt: Combined load and latch mechanism for fluid flow control apparatus. IVAC Corporation, Fulwider Patton Rieber Lee & Utecht, July 17, 1984: US04460358 (115 worldwide citation)

A combination load and latch mechanism for fluid flow control apparatus, wherein a latch mounted for pivotal movement may be manually opened to disengage an electromechanical manipulating device to permit loading or unloading a feeding tube, the latch automatically closing and the device re-engaging ...


10
Richard M Bucchianeri: Mechanism for screw drive and syringe plunger engagement/disengagement. IVAC Corporation, Fulwider Patton Rieber Lee & Utecht, January 10, 1984: US04424720 (113 worldwide citation)

A mechanism for screw drive and syringe plunger engagement and disengagement for a syringe infusion pump, wherein a split-nut pair are moveable into and out of engagement with a lead screw by means of rotary cam control, the rotary cam being keyed with a crank disk that is coupled to a crank arm, wh ...