Patents by Inventor John A. Popken

John A. Popken 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: 5725530
    Abstract: A surgical saw includes a saw assembly for being driven by a powered surgical handpiece and having a pair of parallel, co-planar guide arms, a pair of flexible, endless cutting bands disposed around the guide arms, respectively, and a drive mechanism for driving the cutting bands around the guide arms in a cutting direction. The cutting bands each include a plurality of spaced cutting teeth connected to one another by flexible band segments. The cutting bands are driven by the drive mechanism relative to the guide arms in opposite directions along defined paths to cut anatomical tissue at distal ends of the guide arms. A method of resecting bone includes the steps of driving the cutting bands relative to the guide arms in the cutting direction along the defined paths and inserting the distal ends of the guide arms in the bone to resect the bone along the plane of the guide arms.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: March 10, 1998
    Inventor: John A. Popken
  • Patent number: 5372597
    Abstract: A device for treating and preventing injuries and contractures of the elbow joint, particularly supination-pronation contractures and proximal radial head fractures. The device includes bracing sections for fixing the device to the radius and the ulna, and for permitting movement of the attached radius continually along a path which is adapted and adjusted to be aligned with the kinematic axis of the proximal radial-ulnar joint.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: December 13, 1994
    Assignee: Smith & Nephew Richards, Inc.
    Inventors: Robert N. Hotchkiss, John Popken, Arthur Woodward, Mark S. Gosney
  • Patent number: 4908017
    Abstract: Failsafe apparatus and method are disclosed for controlling fluid flow from syringes. One or more syringes are positioned so that the piston of each syringe is caused to be precisely displaced to thereby safely deliver medicament from the syringe to a patient. To effect movement of each piston, a rack is provided, either as a part of the piston or secured thereto, and longitudinal movement of each rack is effected by rotating an associated pinion gear that is connected with a pulse-driven, stepper motor utilized in a power-efficient electromechanical configuration, with the operation of the stepper motor being accomplished through dual-redundant state machines controlled by a pre-programmed memory unit, and with the apparatus being repeatedly subjected to a plurality of error checks and data integrity verifications to assure continued proper operation.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: March 13, 1990
    Assignee: Ivion Corporation
    Inventors: David C. Howson, Michael W. Fellinger, John A. Popken, Richard M. Altobellis, Bennett J. Scharf, Walter E. Oshetski
  • Patent number: 4846797
    Abstract: A syringe positioning device is disclosed for enhancing control of fluid flow from a syringe. A disposable unit that includes a syringe and rack mounted on a retaining clip is positionable on a drive unit so that, when so positioned, the piston of the syringe is precisely displaced to deliver medicament from the syringe to a patient. A non-disposable unit is also disclosed onto which a syringe and piston can be positioned so that the device thereafter also provides precise medicament delivery. The longitudinal movement of the rack is effected by rotating the pinion gear that is connected with a pulse-driven, power efficient stepper motor, with the operation of the stepper motor being controlled by a pre-programmed memory unit. A hinged rack is also disclosed, as is a one-way ball drive unit.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: July 11, 1989
    Assignee: Intelligent Medicine, Inc.
    Inventors: David C. Howson, Michael W. Fellinger, John A. Popken, Richard M. Altobellis
  • Patent number: 4834152
    Abstract: A storage receptacle sealing and transfer apparatus is disclosed for selectively enabling sealing and transfer of material to and from the receptacle. The apparatus is particularly useful for maintaining and later transferring drug and associated materials, under sterile conditions, to achieve mixing, as, is necessary, for example, in reconstituting a drug by mixing the drug with a diluent prior to delivery to a patient. The transfer apparatus is mounted at the aperture, or mouth, of a storage receptacle to seal the aperture until the contents are needed, and then to permit sterile transfer from one receptacle to another receptacle through a central passage.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: May 30, 1989
    Assignee: Intelligent Medicine, Inc.
    Inventors: David C. Howson, Robert E. Havranek, John A. Popken, Frederick L. Stone
  • Patent number: 4449015
    Abstract: A cable connector cover for use primarily with telephone cable connectors is provided with knock-out panels for bringing a connector half into the cover from an outlet box and for creating screw openings for mounting on the outlet box. Further mounting is possible by the use of snap-in inserts fitting within diagonally arranged pockets on the rear of the cover, which inserts may magnetically or adhesively be joined to an external object. Screws for holding the cover on an outlet box are carried in a press-fit holder within the cover, and the holder is spaced above an underlying wall by a sufficient distance that tape segments for use on the inserts can be stored between the wall and screws. Further knock-out panels provide mounting for modular jacks. Adjustable cable passage openings seal around various cable sizes or may be closed by plugs.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: May 15, 1984
    Assignee: Proto Production Plastics, Inc.
    Inventors: Kenneth W. Hotchkiss, John A. Popken, Nellie S. Griffith
  • Patent number: D290806
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: July 14, 1987
    Inventors: Kenneth W. Hotchkiss, George H. Bramhall, John A. Popken
  • Patent number: D341752
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: November 30, 1993
    Assignee: Proto-Tel, Inc.
    Inventors: Kenneth W. Hotchkiss, John A. Popken, Art B. Woodward