Dual-filtered isolation valve for resuscitation

A - Human Necessities – 61 – M

Patent

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A61M 16/20 (2006.01)

Patent

CA 2246770

The dual-filtered rotary isolation valve for resuscitation isolates, by filtering. a patient from a provider of care when such provider of care attempts to resuscitate such patient by forcing the provider's breath into the patient's lungs. No prior art device provides filters for all pathways that may be taken by breath exhaled by the care provider and the patient while having a path that would enable the often weak incipient breath of a patient to escape from the patient's lungs to the atmosphere even if the care provider is exhaling at the same time. Breath exhaled by a care provider passes through an upper filter segment (35), a space (388) to retain moisture, a lower filter segment (36), and a check valve (28). The check valve (28) prevents air exhaled by the patient from reaching the care provider, causing the patient's breath to pass through an exhalation filter (23) before reaching the atmosphere.

La vanne d'isolation rotative, à double filtre, utilisée en réanimation isole, par un système de filtration, un patient de la personne qui essaie de le réanimer en pratiquant sur lui la respiration artificielle. Aucun dispositif de l'art antérieur ne possède de filtre pour toutes les voies que peuvent emprunter la respiration exhalée par le réanimateur et par le patient tout en disposant d'une voie permettant à la respiration débutante, souvent très faible, du patient de s'échapper de ses poumons pour passer dans l'atmosphère, même lorsque le réanimateur exhale en même temps. La respiration exhalée par le réanimateur passe à travers un segment de filtre supérieur (35), un espace (388) prévu pour retenir l'humidité, un segment de filtre inférieur (36), et une vanne de contrôle (28). Cette dernière vanne empêche l'air exhalé par le patient d'atteindre le réanimateur, ce qui force la respiration du patient à passer à travers un filtre d'exhalation (23) avant d'atteindre l'atmosphère.

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