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Universal ventilation device

  • US 5,628,305 A
  • Filed: 09/27/1995
  • Issued: 05/13/1997
  • Est. Priority Date: 09/27/1995
  • Status: Expired due to Fees
First Claim
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1. A universal ventilation device comprising:

  • a) a rigid cylinder having a top, bottom and having an adjustable volume chamber therein for containing gas or air to be delivered to a patient whose normal inspiration rate is interrupted or has ceased;

    said rigid cylinder further including means for connecting said top and bottom and a means for adjusting the volume of the adjustable volume chamber;

    wherein at least one of said means for connecting or said means for adjusting is employed to adjust a volume of gas or air delivered to a patient to be roughly equivalent to such a patient'"'"'s lung tidal volume;

    b) a rescuer-controlled expelling means for urging the gas or air from said adjustable volume chamber and into a patient'"'"'s lungs via a face-mask or endotracheal tube, wherein said rescuer-controlled expelling means urges said gas or air from said adjustable volume chamber to enter a patient'"'"'s lungs at a flow rate that is at least roughly matched to the normal inspiratory flow rate of a patient;

    c) a double one-way patient valve located between said adjustable volume chamber and said face-mask or said endotracheal tube which only allows the air or gas expelled from the adjustable volume chamber to enter a patient'"'"'s lungs and which allows gas exhaled by a patient to vent to the atmosphere, but does not allow air or gas exhaled by a patient to enter said adjustable volume chamber; and

    d) a one-way gas or air intake valve connected to said adjustable volume chamber which allows compressed gas or fresh air to enter said adjustable volume chamber when said rescuer-controlled expelling means is not urging air or gas into a patient'"'"'s lungs.

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