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US 2002/0162556 A1Published application
Face mask incorporating respiratory flow sensor
AssigneeMedical Graphics Corporation
InventorsMark A. Smith, Rex T. Fasching, C. Peter Howard
Life of this patent
Estimating the term…
Abstract
A respiratory monitor apparatus comprises, in combination, a flexible mask fabricated from a stretchable fabric, such as spandex, that is designed to support a pneumotach flow measuring instrument in a way that does not require the instrument to be placed in the wearer's mouth, yet still remaining in fluid communication with the wearer's mouth and with little or no dead-space or leakage between the mask member and the wearer's face.
Claims19
A respiratory monitor apparatus comprising:
- (a) a mask adapted to be secured to the face of a person so as to enclose the nose and the mouth of that person, the mask formed of a gas impermeable elastic fabric that is made to conform to the persons' face with substantially zero air space therebetween when worn, the elastic fabric having at least one aperture of a predetermined size and shape therethrough;
- and
- (b) a respiratory flow sensor extending through the aperture and being of a size and shape to exhibit a zero clearance fit with a portion of the mask defining the aperture.
Dependencies are inferred from the claim text.