Patents Assigned to MH Custom Design & Mfg., L.C.
  • Apparatus for testing pulmonary devices
    Patent number: 5528944
    Abstract: An apparatus for testing pulmonary devices such as endotracheal tubes and connectors is disclosed. The apparatus forces a predetermined volume of air or gas through the pulmonary device in accordance with a preselected waveform in a first and/or second direction under conditions that simulate an in-patient use environment. The device also measures the amount of work required to force the air or gas through the device under selected conditions. In a preferred embodiment of the invention, the device produces a laminar or turbulent flow of gas.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: June 25, 1996
    Assignee: MH Custom Design & Mfg., L.C.
    Inventors: Mark J. Hoyt, Jon A. Bertrand
  • Apparatus for testing polymonary devices
    Patent number: 5473954
    Abstract: An apparatus for testing pulmonary devices such as endotracheal tubes and connectors is disclosed. The apparatus forces a predetermined volume of air or gas through the pulmonary device in accordance with a preselected waveform in a first and/or second direction under conditions that simulate an in-patient use environment. The device also measures the amount of work required to force the air or gas through the device under selected conditions. In a preferred embodiment of the invention, the device produces a laminar or turbulent flow of gas.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: December 12, 1995
    Assignee: MH Custom Design & Mfg., L.C.
    Inventors: Mark J. Hoyt, Jon A. Bertrand