Patents by Inventor George Keller

George Keller 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: 20150252404
    Abstract: A disposable kit for use in directing fluid through a biological cell separator device (10). The kit generally includes a separator tube (22), a buffer fluid container (34), cell sample container (32), separated cell container (60), and flushing fluid container (62), as well as various conduits (36, 38, 42, 50, 50a, 50b) for connecting the containers (32, 34, 60, 62) and separator tube (22) in fluid communication together. A cell separator system is provided including a separator tube (22), magnet (20), pump (120) and a motorized drive unit (96). The motorized drive unit (96) is operatively connected to the magnet (20) to allow the magnet (20) to be moved a sufficient distance away from the separator tube (22) so as to allow cells adhered to the inside surface thereof to be flushed out of the tube (22).
    Type: Application
    Filed: March 19, 2015
    Publication date: September 10, 2015
    Inventors: Jeffrey J. Chalmers, Maciej Zborowski, Thomas J. Ward, George Keller, Adam Landis, Michael Ward, Lee Moore
  • Publication number: 20130315796
    Abstract: A disposable kit for use in directing fluid through a biological cell separator device (10). The kit generally includes a separator tube (22), a buffer fluid container (34), cell sample container (32), separated cell container (60), and flushing fluid container (62), as well as various conduits (36, 38, 42, 50, 50a, 50b) for connecting the containers (32, 34, 60, 62) and separator tube (22) in fluid communication together. A cell separator system is provided including a separator tube (22), magnet (20), pump (120) and a motorized drive unit (96). The motorized drive unit (96) is operatively connected to the magnet (20) to allow the magnet (20) to be moved a sufficient distance away from the separator tube (22) so as to allow cells adhered to the inside surface thereof to be flushed out of the tube (22).
    Type: Application
    Filed: February 17, 2011
    Publication date: November 28, 2013
    Applicant: THE OHIO STATE UNIVERSITY
    Inventors: Jeffrey J. Chalmers, Maciej Zborowski, Thomas J. Ward, George Keller, Adam Landis, Michael Ward, Lee Robert Moore
  • Publication number: 20080064919
    Abstract: Devices and methods are disclosed for stabilizing tissue within a patient's body during a surgical operation to provide a relatively motionless surgical field, such as during a coronary artery bypass graft procedure. The devices include tissue stabilizers which engage and provide stabilization to a targeted area of tissue and further have the ability to engage and manipulate some portion of tissue within or adjacent the targeted area to improve the surgical presentation of that portion of tissue. The tissue stabilizer typically has one or more stabilizer feet which have a first foot portion configured to provide stabilization to the targeted tissue and a second foot portion moveable relative to the first foot portion for manipulating a portion of tissue to improve the surgical presentation.
    Type: Application
    Filed: November 2, 2007
    Publication date: March 13, 2008
    Inventors: Warren Williamson, Paul Spence, Mark Ortiz, George Keller, Harry Green
  • Publication number: 20050226770
    Abstract: An automated machine for handling and embedding tissue samples contained on microtome sectionable supports. The machine includes an input member configured to hold a plurality of the microtome sectionable supports prior to a tissue embedding operation. An output member is configured to hold a plurality of the microtome sectionable supports after the tissue embedding operation. A cooling unit is configured to hold at least one of the microtome sectionable supports during the tissue embedding operation. A motorized carrier assembly is mounted for movement and configured to hold at least one of the microtome sectionable supports. The carrier assembly moves the support from the input member to the cooling unit and, finally, to the output member. A dispensing device dispenses an embedding material onto the microtome sectionable support and at least one tissue sample carried by the microtome sectionable support during the embedding operation.
    Type: Application
    Filed: December 13, 2004
    Publication date: October 13, 2005
    Applicant: BioPath Automation, L.L.C.
    Inventors: Douglas Allen, Dominic DiNovo, Matthew Huddleston, Kenneth Hughes, George Keller, Keith Kuisick, Rebeccah Quam, Cecil Robinson, Jonathan Turner, Ernest VanHoose, Thomas Ward, Warren Williamson
  • Publication number: 20030216752
    Abstract: The present disclosure relates to a ligating instrument and end effector assemblies for use in laparoscopic tubal ligation procedures. The ligating instrument includes an integral grasping assembly and an integral end effector actuator and is configured to perform a ligating procedure by operation of a single hand of a user. The ligating instrument includes an integral grasper assembly for grasping a tubular tissue section and removable end effector or suture deployment mechanism for holding open a suture to be positioned about the tubular section. The grasper is configured to draw the tubular section into the open loop of suture material and cinch the suture material about the tubular tissue section. A rotator knob may be provided to orient grasper members associated with the grasper assembly relative to the tissue section.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 20, 2003
    Applicant: ESD Medical L.L.C.
    Inventors: Warren P. Williamson, Craig B. Berky, Thomas J. Ward, George Keller, Timothy N. Wells, William J. Christy
  • Patent number: 5029417
    Abstract: A tool apparatus wherein an elongate longitudinally aligned handle includes a plurality of rollers rotatably mounted coaxially spaced from the handle forwardly thereof. The rollers include deburring or cutting edges to remove roughness and smooth edge surfaces of brittle material such as metals, rigid polymerics, and the like. Modifications of the invention includes a first roller biased against a second roller utilizing a hinged lever arm pair mounting one roller relative to the other roller. Further modifications include conically tapered rollers each including an axis parallel relative to one another wherein a removable conical abrasive sheaths are securably mounted utilizing adhesive and the like onto a respective conical roller.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: July 9, 1991
    Inventor: George Keller
  • Patent number: D743326
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: November 17, 2015
    Inventor: George Keller