Bi-functional in-line phonation valve

Details Bi-functional in-line phonation valve Bi-functional in-line phonation valve

A - Human Necessities

61

M

A61M 16/04 (2006.01) A61M 16/20 (2006.01) F16K 15/14 (2006.01)

Patent

CA 2347190

An in-line phonation valve system (10) including a valve body (12) having first and second ends (14, 16) through which gas passes into and out of the valve body (12). The first end (14) is connectable to a breathing tube connected to a patient's airway, for passage of gas between the breathing tube and the valve body (12). The second end (16) of the valve body (12) is connectable to a gas line. A diaphragm-valve assembly (28) is provided which includes a one-way valve (30) having a phonation position permitting gas to pass through said valve body (12) toward said patient when said patient inhales. The one-way valve (30) in the phonation position substantially prevents gas from passing through the valve body (12) when the patient exhales. The diaphragm-valve assembly (28) is movable out of the phonation position, so as to permit substantially free flow of gas through the valve body (12) both toward and away from the patient when the patient respectively inhales and exhales. The diaphragm-valve assembly (28) is movable from the phonation position without disconnecting the first end (14) from the breathing tube and the second end (16) from the gas line. Preferably, the diaphragm-valve assembly (28) is a removable cartridge which is replaceable with a free-flowing ring cartridge insert (42).

Un système de valve (10) de phonation en ligne comprend un corps de valve (12) ayant des première et seconde extrémités (14, 16) par lesquelles un gaz passe dans le corps de valve (12) et hors de celui-ci. La première extrémité (14) est connectable à un tube respiratoire relié à une voie aérienne du patient, permettant le passage du gaz entre le tube respiratoire et le corps de valve (12). La seconde extrémité (16) du corps de valve (12) est connectable à un conduit de gaz. Un ensemble diaphragme-valve (28) est prévu lequel comprend une valve unidirectionnelle (30) ayant une position de phonation permettant au gaz de passer à travers ledit corps de valve (12) vers le patient lorsque celui-ci inhale. La valve unidirectionnelle (30) dans la position de phonation empêche sensiblement le passage du gaz à travers le corps de valve (12) lorsque le patient exhale. L'ensemble diaphragme-valve (28) quitte sa position de phonation pour permettre l'écoulement sensiblement libre de gaz à travers le corps de valve (12) à la fois vers et à l'opposé du patient lorsque celui-ci respectivement inhale et exhale. L'ensemble diaphragme-valve (28) quitte sa position de phonation sans débranchement de la première extrémité (14) du tube respiratoire et de la seconde extrémité (16) du conduit de gaz. De préférence, l'ensemble diaphragme-valve (28) est une cartouche amovible pouvant être remplacée par un insert cartouche annulaire (42) à écoulement libre.

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