Patents by Inventor Lee W. Travis

Lee W. Travis 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: 9283370
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: March 15, 2016
    Assignee: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Patent number: 9216279
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: December 22, 2015
    Assignee: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Patent number: 9017297
    Abstract: A delivery tube is inhibited from unintended withdrawal from an infusion pump which has an internal occlusion clamp that clamps the delivery tube to prevent the free flow of fluid through the tube, by overlapping a blocking lip from a compression edge of the occlusion clamp with a restraint surface of an anvil against which the tubing is compressed and by overlapping a blocking projection from the restraint surface with the compression edge. Inhibition is also achieved by positioning an obstruction protrusion adjacent to the compression edge and the blocking lip to resist the application of exterior physical force to force the occlusion clamp from an occluding position to a non-occluding position.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: April 28, 2015
    Assignee: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Publication number: 20130253442
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 26, 2013
    Applicant: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Publication number: 20130237956
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Application
    Filed: April 30, 2013
    Publication date: September 12, 2013
    Applicant: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Patent number: 8465464
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: June 18, 2013
    Assignee: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Publication number: 20130138074
    Abstract: A delivery tube is inhibited from unintended withdrawal from an infusion pump which has an internal occlusion clamp that clamps the delivery tube to prevent the free flow of fluid through the tube, by overlapping a blocking lip from a compression edge of the occlusion clamp with a restraint surface of an anvil against which the tubing is compressed and by overlapping a blocking projection from the restraint surface with the compression edge. Inhibition is also achieved by positioning an obstruction protrusion adjacent to the compression edge and the blocking lip to resist the application of exterior physical force to force the occlusion clamp from an occluding position to a non-occluding position.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 30, 2013
    Applicant: WALKMED INFUSION LLC
    Inventors: Lee W. Travis, Christina Wamsley
  • Publication number: 20120035581
    Abstract: An infusion pump for metering fluid flow through an delivery tube of an infusion tubing set has an internal occlusion clamp which clamps the delivery tube to prevent the free flow of fluid through the tube when access to the delivery tube in the infusion pump is possible. To release the delivery tube from the infusion pump, a slide clamp is manually used to release the occlusion clamp to an open, non-occluding position while simultaneously occluding the delivery tube to prevent the free flow of fluid.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 9, 2012
    Inventor: Lee W. Travis
  • Patent number: 5964690
    Abstract: A mechanism for fixing a blood centrifuge bowl to a rotating spindle is disclosed having two parts. The first part converts downward movement of an outer collar of a chuck into inward and downward pressure against a blood bowl to be secured in the chuck. The second part of the invention converts centrifugal forces present in a rotating chuck into downward pressure on the collar described above. In the preferred embodiment of the invention, the chuck comprises a base plate, plungers, a finger ring and a collar. The base plate receives and positions the blood bowl. The finger ring has a series of fingers located around its upper periphery that pivot around living hinges into contact with the blood bowl. The collar has an annular sloping finger contacting surface that contacts the outer surface of the fingers and forces them inward and downward into contact with the blood bowl. The base plate has a series of outwardly directed bores that hold plungers.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: October 12, 1999
    Assignee: Medtronic, Inc.
    Inventors: David W. Wright, Mark T. Patton, Lee W. Travis
  • Patent number: D529618
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: October 3, 2006
    Assignee: BioCare Systems, Inc.
    Inventors: Lee W. Travis, Christopher Andrews, David W. Wright, Sherry Fox
  • Patent number: D530821
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: October 24, 2006
    Assignee: BioCare Systems, Inc.
    Inventors: Lee W. Travis, David W. Wright, Sherry Fox, Christopher Andrews
  • Patent number: D531319
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: October 31, 2006
    Assignee: Organ Recovery Systems
    Inventors: Douglas A. Schein, Lee W. Travis
  • Patent number: D535401
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: January 16, 2007
    Assignee: BioCare Systems, Inc.
    Inventors: Lee W. Travis, David W. Wright, Christopher Andrews, Sherry Fox
  • Patent number: D536457
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: February 6, 2007
    Assignee: BioCare Systems, Inc.
    Inventors: Christopher Andrews, Lee W. Travis, David W. Wright, Sherry Fox
  • Patent number: D635255
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: March 29, 2011
    Assignee: WalkMed Infusion LLC
    Inventors: Lee W. Travis, Christina Wamsley