A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/107 (2006.01) A61B 5/00 (2006.01) A61B 5/08 (2006.01) A61B 5/091 (2006.01) A61N 5/00 (2006.01)
Patent
CA 2304541
This invention is a system for measuring a patient's inspiration volume, and for enhancing patient compliance with a predetermined breathing pattern during inspiration volume measurement. A flexible conductive loop (28) adapted for being wrapped around, and conforming to the patient's chest is coupled to an amplifier circuit (24) including a signal generator (40), and an exclusive OR gate (46). The signal generator (40) generates a square wave signal (42, 44) for coupling to a first terminal of the conductive loop (28). The exclusive OR gate (46) is responsive to the applied square wave signal (44), and to a signal (42) at the second terminal (48) of the loop for measuring the delay between the signals. In one embodiment, a measure of the patient's compliance with a predetermined breathing pattern is provided.
L'invention concerne un système servant à mesurer le volume d'une inspiration chez un malade et à augmenter la conformité de ce dernier à une configuration respiratoire prédéterminée pendant les mesures du volume d'inspiration. Une boucle conductrice souple (28) conçue pour être enveloppée autour de la poitrine du malade est couplée à un circuit amplificateur (24) comprenant un générateur de signaux (40) et une porte OR exclusive (46). Le générateur de signaux (40) génère un signal carré (42) (44) qui sera couplé à une première borne de la boucle conductrice (28). La porte OR exclusive (46) réagit à l'application du signal carré (44) et à un signal (42) à la deuxième borne (48) de la boucle afin de mesurer le retard entre les signaux.
Boston Medical Technologies Inc.
Sim & Mcburney
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