Speech transmission adaptor for use with a respirator mask

Details Speech transmission adaptor for use with a respirator mask Speech transmission adaptor for use with a respirator mask

A - Human Necessities

62

B

A62B 18/08 (2006.01)

Patent

CA 2172719

A speech transmission adaptor (50) and a respirator mask (30) comprising a speech transmission adaptor. The respirator mask comprises an inhalation port (40), an exhalation port (48), and a speech transmission adaptor is detachably sealed engagement with the inhalation port. The adaptator comprises a peripheral housing (42), a speech reception means supported by the peripheral housing, and a speech transmission means operably coupled to the speech reception means. The speech reception means (74) receives sound pressure generated by a wearer of the respirator mask, and the speech transmission means conveys signals representative of such sound pressure to an external speech transducer. The adaptor mates to the inhalation port of a respirator mask and expands the clean air envelope defined within the mask to include the speech reception means within the clean air envelope without requiring structural modification of the respirator mask. The speech transmission adaptor comprises a central aperture (72) which is adapted to accommodate the passage of air therethrough and engaging means at each of its ends.

Adaptateur (50) de transmission de signaux vocaux et masque respiratoire (30) comprenant cet adaptateur. Le masque respiratoire comprend un orifice d'inspiration (40), un orifice d'expiration (48), ainsi qu'un adaptateur de transmission de signaux vocaux placé en contact étanche avec l'orifice d'inspiration et libérable de celui-ci. L'adaptateur comprend un boîtier périphérique (42), un récepteur de signaux vocaux soutenu par le boîtier, et un émetteur de signaux vocaux couplé de manière fonctionnelle audit récepteur. Ce dernier (74) reçoit une pression acoustique générée par l'utilisateur du masque, et l'émetteur transmet des signaux représentant une telle pression à un transducteur vocal externe. L'adaptateur s'adapte à l'orifice d'inspiration du masque et élargit l'enveloppe d'air pur défini à l'intérieur du masque de façon à y inclure le récepteur de signaux vocaux sans nécessiter de modification structurale du masque. L'adaptateur comprend une ouverture centrale (72) conçue pour permettre le passage de l'air, ainsi que des moyens d'accouplement se trouvant à chacune de ses extrémités.

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