Patents Assigned to Patient Solutions, Inc.
  • Method of measuring an occlusion in an infusion device with disposable elements
    Patent number: 5803712
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate. The device may also incude a pressure sensing pin positioned on the cam assembly which contacts the tubing during the pumping cycle.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: September 8, 1998
    Assignee: Patient Solutions, Inc.
    Inventors: David L. Davis, Richard F. Hatch, David A. Poirier
  • Infusion device with disposable elements
    Patent number: 5320502
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: June 14, 1994
    Assignee: Patient Solutions, Inc.
    Inventor: David L. Davis
  • Infusion device with disposable elements
    Patent number: 5320503
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: June 14, 1994
    Assignee: Patient Solutions Inc.
    Inventor: David L. Davis
  • Infusion device with disposable elements
    Patent number: 5246347
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: September 21, 1993
    Assignee: Patients Solutions, Inc.
    Inventor: David L. Davis
  • Infusion device with disposable elements
    Patent number: 5074756
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: December 24, 1991
    Assignee: Patient Solutions, Inc.
    Inventor: David L. Davis
  • Infusion device with disposable elements
    Patent number: 5017059
    Abstract: An infusion device with a disposable administration set which is inexpensive to manufacture. In the preferred embodiment of the present invention the disposable administration set has a plurality of elongated cam followers connected to a plate assembly, wherein the cam followers are displaced in a predetermined sequence and forced against a delivery tube by cam means driven by rotary drive means. The disposable administration set is injection molded as a single integral piece. The disposable administration set includes adjustment spacers disposed between the plate assembly and the cam followers which adjust the distance between them to keep the device accurate. In the preferred embodiment of the present invention the cam means are configured to provide fluid delivery at a consistent and uniform rate.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: May 21, 1991
    Assignee: Patient Solutions, Inc.
    Inventor: David L. Davis