Patents by Inventor Douglass G. Whitney

Douglass G. Whitney 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: 20080161849
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.
    Type: Application
    Filed: December 17, 2007
    Publication date: July 3, 2008
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Patent number: 7331981
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: February 19, 2008
    Assignee: CCH Associates, LLC
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Publication number: 20040172060
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 2, 2004
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Patent number: 6699261
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: March 2, 2004
    Assignee: CCH Associates, Inc.
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Patent number: 6162240
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a performed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back though the sealing material after the access opening is sealed.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: December 19, 2000
    Assignee: CCH Associates, LLC
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Patent number: 6056768
    Abstract: A method of and apparatus for sealing access openings into blood vessels using an expandable member in the blood vessel on a control member that extends out through the access opening and an applicator which inserts a preformed sealing material into the access opening over the control member to keep the control member and expandable member centered in the access opening and withdrawing the collapsed expandable member back through the sealing material after the access opening is sealed.
    Type: Grant
    Filed: January 7, 1992
    Date of Patent: May 2, 2000
    Inventors: Christopher U. Cates, William D. Knopf, Douglass G. Whitney
  • Patent number: 5603731
    Abstract: Thrombosis in a blood vessel is prevented in a patient's body by the steps of positioning an electrically conductive member in an expanded portion of the blood vessel, at a site where the body is exposed to blood platelets, and disposing an electronegative potential generator in or adjacent to the patient's body and connected to the conductive member for maintaining a negative bias on the conductive member. One form of generating the negative bias is by passing microwaves through the patient's body to contact an embedded diode which generates the negative potential. The current density is maintained at about 50 milliamps per square centimeter.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: February 18, 1997
    Inventor: Douglass G. Whitney
  • Patent number: 5348553
    Abstract: A method of repairing a blood vessel having a narrowed portion therein comprising the steps of expanding the narrowed portion of the blood vessel so that the diameter of the blood vessel after expansion is enlarged; and then maintaining an electronegative potential on the interior surface of the expanded narrowed portion of the blood vessel to at least as great as any electropositive potential generated by the blood vessel as a result of the injury to the blood vessel caused by the expansion thereof.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: September 20, 1994
    Inventor: Douglass G. Whitney
  • Patent number: 4634431
    Abstract: A syringe injector for injecting liquids into patients comprising a syringe barrel with a slidable piston therein and a driver slidably extending into the barrel bore from the open end thereof behind the piston, where the driver includes a power supply and drive means operated by the power supply to cause at least a portion of the driver to move relative to the barrel to engage and propel the piston toward the discharge opening in the syringe barrel.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: January 6, 1987
    Inventors: Douglass G. Whitney, J. Kell Martin, III
  • Patent number: 4392847
    Abstract: A system for injecting fluid into a patient and monitoring the blood pressure of the patient comprising an injector for incrementally injecting the fluid through a delivery tube into the vascular system of the patient at selected prescribed rates with display means and rate indicator means generating an output indicative of the rate of fluid injection connected to the display means for visually displaying the rate at which the fluid is being injected; a blood pressure monitor including transducer means communicating with the vascular system of the patient through the delivery tube on the injector for providing an output indicative of the patient's blood pressure and pressure detector means responsive to the output of the transducer means to generate an output indicative of the systolic and diastolic blood pressures of the patient; and mounting means for selectively mounting the blood pressure monitor on the injector and including connector means connecting the output of the pressure detector means in the bloo
    Type: Grant
    Filed: May 6, 1981
    Date of Patent: July 12, 1983
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4351335
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule with a tubular side wall closed at one end with a penetrable plug and a sliding piston in the side wall to force the fluid through an opening in the penetrable member using either a long duration injector with an expelling means to move the ampule piston, drive means for operating the expelling means, and control means for incrementally and successively connecting and disconnecting the drive means to the expelling means or a short duration injector with a spring drive or a fluid pressure drive to move the ampule piston and meter the fluid through a metering device.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: September 28, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4351332
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: September 28, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4346707
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: August 31, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4345595
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: August 24, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4342312
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: August 3, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4342311
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: August 3, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4326517
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: April 27, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4320757
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: March 23, 1982
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4273122
    Abstract: Method and apparatus for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: June 16, 1981
    Inventors: Douglass G. Whitney, John K. Martin, III
  • Patent number: 4269185
    Abstract: Apparatus and method for injecting fluids into patients at a controlled rate from an ampule containing the injecting fluid with a sliding piston therein to force the fluid from the ampule into the patient using a drive system which incrementally and successively advances the piston in the ampule to meter the fluid into the patient.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: May 26, 1981
    Inventors: Douglass G. Whitney, John K. Martin, III