Patents by Inventor Douglas Duchon
Douglas Duchon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20080004549Abstract: A negative pressure (i.e., vacuum or suction) wound healing device and system incorporating the device. The device of the present disclosure is smaller, lighter, portable, and overall more manageable by both the user and the medical personnel than the conventional systems. The device could be readily worn by the user.Type: ApplicationFiled: June 12, 2007Publication date: January 3, 2008Inventors: Paul Anderson, Douglas Duchon
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Publication number: 20070055202Abstract: 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. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.Type: ApplicationFiled: November 8, 2006Publication date: March 8, 2007Applicant: Acist Medical Systems, Inc.Inventors: Douglas Duchon, Thomas Paulson, Vince Copa, Robert Wilson, Jiyan Liu
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Patent number: 7169135Abstract: 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 addition, these devices may also be used to track and/or monitor fluid volume and use during various injection procedures. Single use and multiple use components, conveniently supplied in kits, may also be tracked and/or monitored by the devices of the present invention.Type: GrantFiled: August 8, 2003Date of Patent: January 30, 2007Assignee: Acist Medical Systems, Inc.Inventors: Douglas Duchon, Robert F. Wilson, James Ryan Mujwid
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Patent number: 7101352Abstract: A pressure sleeve assembly and a method of its use in a fluid injection system are disclosed. The pressure sleeve assembly includes a longitudinal base member, an endplate associated with the longitudinal base member, a fixed or freely removable door, a cylinder and a pivotal arm coupling the cylinder to the longitudinal base member. The pressure sleeve assembly includes properties that increase the ease of use and maintenance of the assembly so as to reduce the effort required by the user and increase the biosafety aspect of the assembly. In addition, the pressure sleeve assembly includes properties that reduce the amount of effort required by the physician prior to and during use of the system as well as properties that increase its range of applications.Type: GrantFiled: August 7, 2003Date of Patent: September 5, 2006Assignee: Acist Medical Systems, Inc.Inventors: Douglas Duchon, James Ryan Mujwid
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Publication number: 20060180202Abstract: The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed to fluid flows at higher pressures than its overpressure rating, a novel valve is used that closes a protected leg in which the transducer is located. The various exemplary embodiments of such valves each have a high pressure input, one or more low pressure inputs, and an output. In operation, when a high pressure fluid flow occurs at a high pressure input, such valves automatically close the low pressure inputs. Alternatively, a novel transducer system is presented, which automatically limits the effective pressure sensed by a transducer to a certain maximum.Type: ApplicationFiled: April 11, 2006Publication date: August 17, 2006Applicant: Acist Medical Systems, Inc.Inventors: Robert Wilson, Douglas Duchon, Mark Gabbard, Khader Mohiuddin, Thomas McPeak
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Patent number: 6969865Abstract: Systems and associated methods are provided for improving detection and measurement of elements in a medium, particularly the measurement of gaseous bubbles in liquid medium, such as blood injected into a patient's body. The systems include a radiation emitter to emit radiation for traversing through a medium, and an analyzer subsystem to receive and to analyze the traversed radiation for presence and/or absence of gaseous elements in the medium. The methods include receiving at least one collection of data corresponding to at least one emitted radiation traversed through a medium, analyzing said collection of data for at least one predetermined condition; and generating a response upon detection of at least one predetermined condition.Type: GrantFiled: February 14, 2002Date of Patent: November 29, 2005Assignee: ACIST Medical Systems, Inc.Inventors: Douglas Duchon, Steven Jester
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Publication number: 20050171569Abstract: In general, the present invention contemplates an implantable device for treating excessive bleeding in a body cavity. The device comprises a biocompatible material, for example polyethylene teraphathalate (PET), which is deliverable into the body cavity. The biocompatible material contains an attribute(s) that promotes tissue reaction or growth that results in a tissue response and/or adhesion formation within the body cavity to reduce or stop the excessive bleeding.Type: ApplicationFiled: October 29, 2004Publication date: August 4, 2005Inventors: Michael Girard, Paul Danielson, James Coad, James Presthus, Karen Peterson, Douglas Duchon
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Publication number: 20050033163Abstract: Devices and methods of use or treatment are disclosed for creating fibrosis and resulting in amenorrhea. In particular, the device relates to an easily deployed intrauterine implant that readily and consistently reduces or eliminates abnormal intrauterine bleeding. In addition, the device is also used as a uterine marker for visualizing endometrial tissue thickness and potential changes. The methods of the present invention serve as a supplement to or a replacement for conventional treatments and procedures used to treat menorrhagia.Type: ApplicationFiled: May 21, 2004Publication date: February 10, 2005Inventors: Douglas Duchon, Paul Danielson, James Presthus
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Publication number: 20050031662Abstract: The present invention contemplates a biocompatible and bioreactive process and device that causes a tissue response in the uterus of a female so as to treat a bleeding pattern. Such a tissue response is bioreactive in nature and substantially noninflammatory. It causes migration of myometrial tissue into the implant and deactivates the normal interrelated cycle of endometrial tissue recycling.Type: ApplicationFiled: May 21, 2004Publication date: February 10, 2005Inventors: Paul Danielson, Douglas Duchon
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Publication number: 20050015056Abstract: A injection system having a syringe body which defines a pumping chamber. A syringe plunger is located in the pumping chamber and is adapted for reciprocal motion within the pumping chamber. The syringe plunger includes a capture member projecting outwardly in a proximal direction. An actuating shaft is coupled to the syringe plunger and is movable through the syringe body to control movement of the syringe plunger. The capture member is adapted to flex radially outwardly when contacted by the actuating shaft to form a releasable engagement with the actuating shaft when the actuating shaft and the capture member are in an engagement position. A release actuator is disposed proximal to the syringe body, and the capture member releases the actuating shaft upon engagement with the release actuator.Type: ApplicationFiled: May 27, 2004Publication date: January 20, 2005Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
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Patent number: 6752789Abstract: A injection system having a syringe body which defines a pumping chamber. A syringe plunger is located in the pumping chamber and is adapted for reciprocal motion within the pumping chamber. The syringe plunger includes a capture member projecting outwardly in a proximal direction. An actuating shaft is coupled to the syringe plunger and is movable through the syringe body to control movement of the syringe plunger. The capture member is adapted to flex radially outwardly when contacted by the actuating shaft to form a releasable engagement with the actuating shaft when the actuating shaft and the capture member are in an engagement position. A release actuator is disposed proximal to the syringe body, and the capture member releases the actuating shaft upon engagement with the release actuator.Type: GrantFiled: July 20, 2001Date of Patent: June 22, 2004Assignee: Acist Medical Systems, Inc.Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
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Publication number: 20040092885Abstract: 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 addition, these devices may also be used to track and/or monitor fluid volume and use during various injection procedures. Single use and multiple use components, conveniently supplied in kits, may also be tracked and/or monitored by the devices of the present invention.Type: ApplicationFiled: August 8, 2003Publication date: May 13, 2004Inventors: Douglas Duchon, Robert F. Wilson, James Ryan Mujwid
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Patent number: 6673048Abstract: A pressure sleeve assembly and a method of its use in a fluid injection system are disclosed. The pressure sleeve assembly includes a longitudinal base member, an endplate associated with the longitudinal base member, a fixed or freely removable door, a cylinder and a pivotal arm coupling the cylinder to the longitudinal base member. The pressure sleeve assembly includes properties that increase the ease of use and maintenance of the assembly so as to reduce the effort required by the user and increase the biosafety aspect of the assembly. In addition, the pressure sleeve assembly includes properties that reduce the amount of effort required by the physician prior to and during use of the system as well as properties that increase its range of applications.Type: GrantFiled: May 24, 2000Date of Patent: January 6, 2004Assignee: Acist Medical Systems, Inc.Inventors: Douglas Duchon, James Ryan Mujwid
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Publication number: 20020145122Abstract: Systems and associated methods are provided for improving detection and measurement of elements in a medium, particularly the measurement of gaseous bubbles in liquid medium, such as blood injected into a patient's body. The systems include a radiation emitter to emit radiation for traversing through a medium, and an analyzer subsystem to receive and to analyze the traversed radiation for presence and/or absence of gaseous elements in the medium. The methods include receiving at least one collection of data corresponding to at least one emitted radiation traversed through a medium, analyzing said collection of data for at least one predetermined condition; and generating a response upon detection of at least one predetermined condition.Type: ApplicationFiled: February 14, 2002Publication date: October 10, 2002Applicant: Systems and Methods for Detection andInventors: Douglas Duchon, Steven Jester
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Publication number: 20020115933Abstract: Fluid injector systems used for a variety of imaging and injection procedures are disclosed. The systems may include separate modules or assemblies that may be located in different rooms of a hospital or imaging facility. Various single use and multiple use components may also be used with the modules or assemblies of the system. In addition, the injector system may include hydraulic and/or pneumatic fluid sources to power the system modules of the present invention.Type: ApplicationFiled: February 14, 2002Publication date: August 22, 2002Inventors: Douglas Duchon, Jason Gerold
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Publication number: 20020022807Abstract: A injection system having a syringe body which defines a pumping chamber. A syringe plunger is located in the pumping chamber and is adapted for reciprocal motion within the pumping chamber. The syringe plunger includes a capture member projecting outwardly in a proximal direction. An actuating shaft is coupled to the syringe plunger and is movable through the syringe body to control movement of the syringe plunger. The capture member is adapted to flex radially outwardly when contacted by the actuating shaft to form a releasable engagement with the actuating shaft when the actuating shaft and the capture member are in an engagement position. A release actuator is disposed proximal to the syringe body, and the capture member releases the actuating shaft upon engagement with the release actuator.Type: ApplicationFiled: July 20, 2001Publication date: February 21, 2002Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
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Patent number: 5008528Abstract: The present invention relates to cursor control devices for computers, and particularly relates to cursor control devices for personal computers which involve the use of a ball rotatable by the fingers for controlling cursor movement.Type: GrantFiled: July 14, 1989Date of Patent: April 16, 1991Assignee: Logitech S.A.Inventor: Douglas Duchon
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Patent number: D412205Type: GrantFiled: July 29, 1997Date of Patent: July 20, 1999Assignee: Invasatec, Inc.Inventors: Douglas Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu