Patents by Inventor Walter A. Newton

Walter A. Newton 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).

  • Tissue irrigating solution
    Patent number: 5304724
    Abstract: In a tissue irrigating solution of the type containing the combination of glutathione, bicarbonate, and Ringer solution (GBR), the bicarbonate and glutathione are freeze-dried, packaged and separately stored in lyophilized powder form until just preceding the operation, at which time the lyophilized powder containing the bicarbonate and glutathione is dissolved directly into a conventional I.V. solution.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: April 19, 1994
    Assignee: Entravision, Inc.
    Inventor: Walter A. Newton
  • Tissue irrigating solution
    Patent number: 5104663
    Abstract: In a tissue irrigating solution of the type containing the combination of glutathione, bicarbonate, and Ringer solution (GBR), the chloride salts (Ringer solution) are packaged and stored in solution and the bicarbonate and glutathione are freeze-dried and packaged and separately stored in powder form until immediately preceeding the operation, at which time the bicarbonate and glutathione are dissolved directly into the solution of chloride salts. The resulting solution is mixed within 24 hours of use.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: April 14, 1992
    Assignee: Entravision, Inc.
    Inventors: Walter A. Newton, Douglas V. Carter
  • Tissue irrigating solution
    Patent number: 4975419
    Abstract: In a tissue irrigating solution of the type containing the combination of glutathione, bicarbonate, and Ringer solution (GBR), the chloride salts (Ringer solution) and packaged and stored in solution and the bicarbonate and glutathione are freeze-dried and packaged and separately stored in powder form until immediately preceeding the operation, at which time the bicarbonate and glutathione are dissolved directly into the solution of chloride salts. The resulting solution is mixed within 24 hours of use.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: December 4, 1990
    Assignee: Entravision, Inc.
    Inventors: Walter A. Newton, Douglas V. Carter
  • Surgical irrigation/aspiration set-up kit
    Patent number: 4900302
    Abstract: A set-up kit for surgical irrigation/aspiration equipment includes an irrigation tube and a suction aspiration tube for operative connection to an irrigation/aspiration machine. The aspiration tube is releasably connected to a hexagonally-shaped nozzle means on the machined fitting, which fitting is in turn releasably connected to a receptacle containing an air passageway on the irrigation/aspiration machine. This arrangement serves to isolate the aspiration tube from the machine. To further isolate, a disposable hydrophobic filter is placed in the branch line between the machined fitting and the aspiration tube.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: February 13, 1990
    Inventor: Walter A. Newton
  • Mechanism for coupling the aspirant line of an irrigation/aspiration machine to the pressure monitoring section
    Patent number: 4886498
    Abstract: A linking mechanism for irrigation/aspiration machines which includes a coupling member having a plug that is inserted into an opening in a receptacle on the face of the I/A machine. The plug projection is sealed in air tight relation to the wall surrounding the opening and an auxiliary prong(s) prevent rotation of the plug as well as lock the plug in the receptacle. The receptacle includes an arming switch activated responsive to proper seating of the plug in the receptacle to arm the peristaltic pump that is subsequently operated by a foot switch to generate a vacuum in the aspirant line.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: December 12, 1989
    Assignee: Entravision, Inc.
    Inventor: Walter A. Newton
  • Mechanism for coupling the aspirant line of an irrigation/aspiration machine to the pressure monitoring section
    Patent number: 4714464
    Abstract: A linking mechanism for irrigation/aspiration machines which includes a coupling member having a plug that is inserted into an opening in a receptacle on the face of the I/A machine. The plug projection is sealed in air tight relation to the wall surrounding the opening and an auxiliary prong(s) prevent rotation of the plug as well as lock the plug in the receptacle. The receptacle includes an arming switch activated responsive to proper seating of the plug in the receptacle to arm the peristaltic pump that is subsequently operated by a foot switch to generate a vacuum in the aspirant line.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: December 22, 1987
    Assignee: Entravision, Inc.
    Inventor: Walter A. Newton