Patents Represented by Law Firm Testa, Hurwitz & Thibeualt, LLP
  • Pneumatic system
    Patent number: 5664563
    Abstract: A pneumatic system is provided for a ventilator is provided for controlling inspired and expired patient gas flow during respiratory therapy. The pneumatic system includes a pneumatic circuit for controlling a supply of one or more selected gases to a patient and a disposable patient breathing circuit for isolating exhaled patient gasses from the pneumatic circuit. The pneumatic circuit includes a dual venturi for assisting compression and expansion of a flexible gas reservoir of the patient breathing circuit.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: September 9, 1997
    Assignee: Cardiopulmonary Corporation
    Inventors: Gary Schroeder, James W. Biondi, Douglas M. Johnston