Patents by Inventor Robert B. Hunt

Robert B. Hunt 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).

  • Patent number: 6506208
    Abstract: A multi-function laparoscopic instrument with an end effector assembly including at least first and second movable members, a first actuator coupled to the first movable member, a second actuator coupled to the second movable member, and a handle assembly. The handle assembly includes a drive mechanism, at least one movable trigger pivotably connected with the drive mechanism, and a switching mechanism coupled to the drive mechanism and having at least two positions, a first position in which the drive mechanism is engaged with the first actuator to operate the first movable member when the movable trigger is activated and, a second position in which the drive mechanism is engaged with the second actuator to operate the second movable member when the movable trigger is activated.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 14, 2003
    Inventors: Robert B. Hunt, Gerald S. Melsky, Stephen C. Evans, Gary Whipple, Richard Wisdom
  • Publication number: 20020072766
    Abstract: A multi-function laparoscopic instrument with an end effector assembly including at least first and second movable members, a first actuator coupled to the first movable member, a second actuator coupled to the second movable member, and a handle assembly. The handle assembly includes a drive mechanism, at least one movable trigger pivotably connected with the drive mechanism, and a switching mechanism coupled to the drive mechanism and having at least two positions, a first position in which the drive mechanism is engaged with the first actuator to operate the first movable member when the movable trigger is activated and, a second position in which the drive mechanism is engaged with the second actuator to operate the second movable member when the movable trigger is activated.
    Type: Application
    Filed: October 9, 2001
    Publication date: June 13, 2002
    Inventors: Robert B. Hunt, Gerald S. Melsky, Stephen C. Evans, Gary Whipple, Richard Wisdom
  • Patent number: 6358268
    Abstract: A surgical instrument including a handle assembly; a shaft connected on one end to the handle assembly; and an end assembly extending from the other end of the shaft. The end assembly is constructed to include a fixed member including on one portion thereof a fixed scissor blade and on another portion thereof a fixed forcep jaw. The end assembly also includes a pivotable scissor blade for cutting tissue between the fixed scissor blade and the pivotable scissor blade and a pivotable forcep jaw for grasping tissue between the fixed forcep jaw and the pivotable forcep jaw.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: March 19, 2002
    Inventors: Robert B. Hunt, Gerald S. Melsky, Stephen C. Evans
  • Patent number: 5437646
    Abstract: A laparoscopy cannula reducer has at its proximal end a resilient end seal carrying a resilient tri-cuspid valve; the valve is passive, yet allows sealing of a body cavity in surgical procedures to prevent fluid flow between the atmosphere and the body cavity, both when an instrument is carried within the cannula and when the cannula is not being used for passage of an instrument to the body and the reducer has handgripping portions for applying and disengaging the reducer over a laparoscopy cannula.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Apple Medical Corporation
    Inventors: Robert B. Hunt, Robert W. Schaefer
  • Patent number: 5273545
    Abstract: A laparoscopic cannula having at its proximal end a resilient end seal carrying a resilient tri-cuspid valve. The valve is passive, yet allows sealing of a body cavity in surgical procedures to prevent fluid flow between the atmosphere and the body cavity, both when an instrument is carried within the cannula and when the cannula is not being used for passage of an instrument to the body.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: December 28, 1993
    Assignee: Apple Medical Corporation
    Inventors: Robert B. Hunt, Robert W. Schaefer