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Patient oxygen delivery mask

  • US 20060081243A1
  • Filed: 01/20/2005
  • Published: 04/20/2006
  • Est. Priority Date: 10/15/2004
  • Status: Abandoned Application
First Claim
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1. A facial mask for delivery of a gas to the nose and mouth region of a patient, comprising an at least partially rigid mask body having a rim for contacting the patient'"'"'s face surrounding the nose and mouth of the patient, a fastener to engage the mask to a patient so as to maintain contact between the patient'"'"'s face and said rim, a connection for a supply of gas, a gas nozzle opening into the interior of said mask operatively connected to said gas connection, a diffuser at least partly surrounding said nozzle and fastened to and supported by said mask body at a position spaced apart from and not contacting the patient'"'"'s face for generating a turbulent plume from gas exiting said nozzle, and a plurality of openings within said body to permit access to the patient'"'"'s face from the outside of said mask, said diffuser being positioned generally centrally within said mask and including a gas flow disrupter between said nozzle and said patient'"'"'s face so as to generate said turbulent plume of said gas substantially at a non-oblique angle towards the patient'"'"'s nose and mouth and a peripheral wall surrounding said nozzle, said wall having a maximum top to bottom height when said mask is vertical of 40 mm above and below said nozzle and a maximum side to side width of 20 mm on either side of said nozzle, when said mask is positioned in an upright position.

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