1
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 ...


2
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 ...


3
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 ...


4
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 ...


5
David Berry, David R Holmes, Robert S Schwartz, Robert A VanTassel: Catheter having flow diffusing tip. Acist Medical Systems, Oppenheimer Wolff & Donnelly, September 25, 2001: US06293958 (82 worldwide citation)

An intravascular catheter having a flow diffusing distal tip includes a plurality of cuts formed through the tubular wall thereof so as to define a plurality of generally U-shaped flaps, the flaps being disposed in at least one and preferably two axially displaced bands. When contrast fluid or the l ...


6
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 ...


7
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 ...


8
Robert F Wilson, Douglas J Duchon: Dynamically compliant catheter. ACIST Medical Systems, James W Inskeep, Oppenheimer Wolff & Donnelly, March 26, 2002: US06361528 (41 worldwide citation)

A catheter enabling a reduced puncture hole size into the skin and blood vessel is disclosed. In one embodiment, the catheter has an elongate body having an expandable sheath extending at least a portion of its length. A pressure constraining sheath is positioned to surround the expandable sheath, a ...


9
Douglas Duchon, Robert F Wilson, James Ryan Mujwid: Fluid management and component detection system. Acist Medical Systems, Kramer Levin Naftalis & Frankel, January 30, 2007: US07169135 (40 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 ...


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 ...