1
Robert F Wilson, Jiyan Liu: Angiographic system with automatic high/low pressure switching. Invasatec, Merchant Gould Smith Edell Welter & Schmidt P A, September 1, 1998: US05800397 (209 worldwide citation)

An angiographic injector system includes a manifold and valve which selectively connects either a syringe pump or a low pressure system to a catheter which is inserted into a patient. The valve is normally biased to a state which connects the low pressure system to the catheter for pressure monitori ...


2
Doug Duchon, Thomas Paulson, Robert F Wilson, Jiyan Liu: Angiographic injector system with automatic high/low pressure switching. Acist Medical Systems, Oppenheimer Wolff & Donnelly, April 24, 2001: US06221045 (196 worldwide citation)

An angiographic injector system includes a manifold and valve which selectively connects either a syringe pump or a low pressure system to a catheter which is inserted into a patient. The valve is normally biased to a state which connects the low pressure system to the catheter for pressure monitori ...


3
Robert F Wilson, Jiyan Liu: Self purging angiographic injector. Invasatec, Kinney & Lange, November 12, 1996: US05573515 (152 worldwide citation)

An angiographic injector includes a syringe which is connected to a fluid reservoir through a valve which permits radiographic contrast material to be drawn from the reservoir into the syringe during a fill operation. The valve permits air to be expelled from the syringe through the valve during a p ...


4
Douglas J Duchon, Robert F Wilson, Jiyan Liu: Fluid management and component detection system. ACIST Medical Systems, Kramer Levin Naftalis & Frankel, September 30, 2003: US06626862 (122 worldwide citation)

Devices that detect and monitor components and fluid used with an injector system, such as an angiographic injector system, are disclosed. The devices may include mechanical, electrical or software based indexing or keying features to ensure that only compatible components are used on the system. In ...


5
Doug Duchon, Thomas Paulson, Robert F Wilson, Jiyan Liu: Infinitely refillable syringe. ACIST Medical Systems, Kramer Levin Naftalis & Frankel, December 2, 2003: US06656157 (101 worldwide citation)

An angiographic injector system includes a manifold and valve which selectively connects either a syringe pump or a low pressure system to a catheter which is inserted into a patient. The valve is normally biased to a state which connects the low pressure system to the catheter for pressure-monitori ...


6
Doug Duchon, Thomas Paulson, Vince Copa, Robert F Wilson, Jiyan Liu: Dual port syringe. Acist Medical Systems, Oppenheimer Wolff & Donnelly, August 8, 2000: US06099502 (87 worldwide citation)

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. D ...


7
Doug Duchon, Thomas Paulson, Vince Copa, Robert F Wilson, Jiyan Liu: Random speed change injector. ACIST Medical Systems, James W Inskeep, Oppenheimer Wolff & Donnelly, February 5, 2002: US06344030 (79 worldwide citation)

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. D ...


8
Robert F Wilson, Jiyan Liu: Dual port syringe. Invasatec, Oppenheimer Wolff & Donnelly, March 16, 1999: US05882343 (75 worldwide citation)

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. D ...


9
Doug Duchon, Thomas Paulson, Vince Copa, Robert F Wilson, Jiyan Liu: System for detecting air. ACIST Medical Systems, Oppenheimer Wolff & Donnelly, September 10, 2002: US06447481 (42 worldwide citation)

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. D ...


10
Douglas J Duchon, James P Smith, Katherine H Anderson, Robert F Wilson, Jiyan Liu: Angiographic injector system and method of use. Acist Medical Systems, Kramer Levin Naftalis & Frankel, October 31, 2006: US07128729 (30 worldwide citation)

An angiographic injector system and a method of controllably delivering medical fluid to a patient from an angiographic injector system are disclosed. A multiple processor control system is used to actively control the injection process and to monitor sensed functions of the system. The multiple pro ...