Breathing protector

Abstract

A breathing protector to be fitted in a tracheostoma is provided. The breathing protector comprises a filter housing (100, 200, 300) with a central axis, a distal end, a proximal end, a first opening (101, 201, 301), and a second opening (102, 202, 302), wherein said second opening (102, 202, 302) is located in a proximal end of said filter housing (100, 200, 300), and said first opening (101, 201, 301) is located distally of said second opening (102, 202, 302), such that said first opening (101, 201, 301) is located upstream said second opening (102, 202, 302) during inhalation. The breathing protector further comprises a heat-moisture exchanging filter (103, 203, 303) received in said filter housing (100, 200, 300), wherein said heat-moisture exchanging filter (103, 203, 303) is resilient; a valve seat (105, 205, 305) around said first opening (101, 201, 301); a rail, located circumferentially of said valve seat (105, 205, 305), extending axially and distally from said first opening (101, 201, 301), said rail having at least one aperture (108, 208, 308) in the side wall thereof; a valve member (109, 209, 309), arranged in a transversal plane to the central axis, adapted to closingly engage with the valve seat (105, 205, 305) in a closed position, said valve member (109, 209, 309) being reciprocatingly arranged within said rail (106, 206, 306) between the closed position and an open position; and a return spring pressing the valve member (109, 209, 309) axially and distally into the open position, wherein the heat-moisture exchanging filter (103, 203) is the return spring.

Description

technical field [0001] The present invention relates generally to the field of respirators for use in the stoma of a person who has had a laryngectomy or tracheostomy, said respirator having a housing with at least one inlet and at least one outlet , so that the air flow in use will pass from the surrounding environment of the person through the inlet to the outlet and into the trachea of ​​the person, the housing of the respirator includes a A heat-moisture exchanger between at least one outlet such that in use said airflow will pass through said heat-moisture exchanger when said airflow passes said inlet to said outlet. Background technique [0002] A tracheostomy is a surgical procedure in which an opening is made into the trachea through the front surface of the neck. This opening is called a tracheostomy. A tracheostomy tube may be provided extending between the tracheostomy and the trachea. A tracheostomy is performed, for example, in the event of a malfunction rela...

AI Technical Summary

Problems solved by technology

Also, part of the heat-moisture exchanger has to be removed for the direct fit of the cover to the seat, otherwise the heat-moisture exchanger would have to be squeezed between the cover and the seat, which would unnecessarily make the The heat-moisture exchanger is restricted and the closing effect is weakened

Also, the device according to US 6,772,758 lacks an axially extending fence at the distal end of the device, allowing only a closing force in the axial direction and action from above within the cross-sectional area of ​​the device

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