Tag Archives: Tissot

Nasal Breathing Valve, Tissot, 1904, Expiratory Switch

valve_nasal_tissot_1904_expiratory

Another version of the nasal breathing valve designed by Tissot with  an electical switch that was activated during expiration. Used one-way valves so exhaled air could be collected and analyzed.  From J. Tissot, “Nouvelle méthode de mesure et d’inscription du débit et des mouvements respiratoires de l’homme et des animaux”, Journal de physiologie et de pathologie générale, 1904, vol 6, pp. 691.

Nasal breathing valve, Tissot, 1904

valve_nasal_tissot_1904

A nasal breathing valve designed by Tissot.  Used one-way valves so exhaled air could be collected and analyzed.  Included an electical switch that was activated during inspiration.  From J. Tissot, “Nouvelle méthode de mesure et d’inscription du débit et des mouvements respiratoires de l’homme et des animaux”, Journal de physiologie et de pathologie générale, 1904, vol 6, pp. 690.