| abstract |
The invention relates to a mouthpiece (1, 1 ') for use in the mouth of a subject with a channel (19, 41) opening into at least one outside of the mouthpiece in a first opening (20) for conveying a liquid, in or one or more sensors (22, 22 ') is arranged on the channel (19, 41) or in a cavity communicating with the channel for detecting at least one measured variable of the liquid and wherein the mouthpiece is at least partially elastically deformable, by an elastic Deformation of the mouthpiece at least partially a deformation of the channel (19, 41) takes place and by the deformation of the channel a pumping action along the channel is generated. |