Peak flow monitor

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/087 (2006.01)

Patent

CA 2288896

A peak flow monitoring device includes first (12) and second (14) body shells that are rotatably engageable with each other to define a resonance chamber (46) formed with a vent outlet (26). The body shells are lockable to one another in increments to set an occluder (20) at a predetermined incremental variation of the vent outlet size. The locking mechanism comprises multiple splines (28) formed on one of the body shells and a key (32) movably mounted on the other body shell, the key (32) being adapted for axial movement into the grooves between the splines (28) to lock the body shells (12, 14) to one another.

Dispositif servant à contrôler un débit de pointe et comprenant une première (12) et une deuxième (14) coques accouplées rotatives l'une avec l'autre afin de définir une chambre de résonance (46) comportant une sortie d'évacuation (26). Ces coques peuvent se verrouiller l'une par rapport à l'autre graduellement afin de régler un élément d'occlusion (20) en fonction de la variation graduelle prédéterminée de la dimension de la sortie d'évacuation. Le mécanisme de verrouillage présente des cannelures multiples (28) situées sur une des coques, ainsi qu'une clavette (32) montée mobile sur l'autre coque et conçue pour effectuer un déplacement axial vers l'intérieur des rainures entre les cannelures (28) afin de verrouiller les coques (12, 14) l'une par rapport à l'autre.

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