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Face mask for patient breathing

  • US 5,921,239 A
  • Filed: 01/07/1997
  • Issued: 07/13/1999
  • Est. Priority Date: 01/07/1997
  • Status: Expired due to Term
First Claim
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1. A mask for directing air to the facial area of a patient comprising:

  • a mask body in the form of a conduit, a seal connected to an outlet end of said mask body for contacting such patient'"'"'s face in a sealing relationship, said seal being soft and pliable for patient comfort, and a vent tube connected to an inlet end of said mask body to supply air to said mask body, wherein said mask body is relatively flexible compared with said vent tube so that lateral stresses on said mask body are initially accommodated by distortion of said mask body rather than on breaking the sealing relationship between the seal and such patient'"'"'s face, and a frame mounted for movement along said mask body, said frame having an opening through which said mask body extends, where movement of said frame toward said outlet end of said mask body and into contact with said seal causes said frame to press said seal against such patient'"'"'s face.

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