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).

  • Publication number: 20080004549
    Abstract: 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: Application
    Filed: June 12, 2007
    Publication date: January 3, 2008
    Inventors: Paul Anderson, Douglas Duchon
  • Publication number: 20070055202
    Abstract: 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: Application
    Filed: November 8, 2006
    Publication date: March 8, 2007
    Applicant: Acist Medical Systems, Inc.
    Inventors: Douglas Duchon, Thomas Paulson, Vince Copa, Robert Wilson, Jiyan Liu
  • Patent number: 7169135
    Abstract: 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: Grant
    Filed: August 8, 2003
    Date of Patent: January 30, 2007
    Assignee: Acist Medical Systems, Inc.
    Inventors: Douglas Duchon, Robert F. Wilson, James Ryan Mujwid
  • Patent number: 7101352
    Abstract: 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: Grant
    Filed: August 7, 2003
    Date of Patent: September 5, 2006
    Assignee: Acist Medical Systems, Inc.
    Inventors: Douglas Duchon, James Ryan Mujwid
  • Publication number: 20060180202
    Abstract: 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: Application
    Filed: April 11, 2006
    Publication date: August 17, 2006
    Applicant: Acist Medical Systems, Inc.
    Inventors: Robert Wilson, Douglas Duchon, Mark Gabbard, Khader Mohiuddin, Thomas McPeak
  • Patent number: 6969865
    Abstract: 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: Grant
    Filed: February 14, 2002
    Date of Patent: November 29, 2005
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Douglas Duchon, Steven Jester
  • Publication number: 20050171569
    Abstract: 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: Application
    Filed: October 29, 2004
    Publication date: August 4, 2005
    Inventors: Michael Girard, Paul Danielson, James Coad, James Presthus, Karen Peterson, Douglas Duchon
  • Publication number: 20050033163
    Abstract: 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: Application
    Filed: May 21, 2004
    Publication date: February 10, 2005
    Inventors: Douglas Duchon, Paul Danielson, James Presthus
  • Publication number: 20050031662
    Abstract: 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: Application
    Filed: May 21, 2004
    Publication date: February 10, 2005
    Inventors: Paul Danielson, Douglas Duchon
  • Publication number: 20050015056
    Abstract: 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: Application
    Filed: May 27, 2004
    Publication date: January 20, 2005
    Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
  • Patent number: 6752789
    Abstract: 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: Grant
    Filed: July 20, 2001
    Date of Patent: June 22, 2004
    Assignee: Acist Medical Systems, Inc.
    Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
  • Publication number: 20040092885
    Abstract: 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: Application
    Filed: August 8, 2003
    Publication date: May 13, 2004
    Inventors: Douglas Duchon, Robert F. Wilson, James Ryan Mujwid
  • Patent number: 6673048
    Abstract: 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: Grant
    Filed: May 24, 2000
    Date of Patent: January 6, 2004
    Assignee: Acist Medical Systems, Inc.
    Inventors: Douglas Duchon, James Ryan Mujwid
  • Publication number: 20020145122
    Abstract: 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: Application
    Filed: February 14, 2002
    Publication date: October 10, 2002
    Applicant: Systems and Methods for Detection and
    Inventors: Douglas Duchon, Steven Jester
  • Publication number: 20020115933
    Abstract: 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: Application
    Filed: February 14, 2002
    Publication date: August 22, 2002
    Inventors: Douglas Duchon, Jason Gerold
  • Publication number: 20020022807
    Abstract: 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: Application
    Filed: July 20, 2001
    Publication date: February 21, 2002
    Inventors: Douglas Duchon, Jason Gerold, Thomas McPeak
  • Patent number: 5008528
    Abstract: 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: Grant
    Filed: July 14, 1989
    Date of Patent: April 16, 1991
    Assignee: Logitech S.A.
    Inventor: Douglas Duchon
  • Patent number: D412205
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: July 20, 1999
    Assignee: Invasatec, Inc.
    Inventors: Douglas Duchon, Thomas Paulson, Robert F. Wilson, Jiyan Liu