Respirator with active dehumidification

摘要

A respirator with active dehumidification of the breathing gas has a breathing gas cooler in the form of a Peltier element (16), whose warm side is arranged in the inspiration line 7 and whose cold side (18) is arranged in the expiration line 12.

主权项

1. A respirator comprising:
an inspiration branch; an expiration branch receiving an expired fluid flow; a breathing gas cooler for cooling gas in said expiration branch, at least a portion of said breathing gas cooler being exposed to only said expired fluid flow in said expiration branch; and a control means for controlling activation of said breathing gas cooler such that an amount of condensation formed in said expiration branch is controlled via said control means, said breathing gas cooler comprising a Peltier element having a warm side and a cold side, said inspiration branch receiving an inspired fluid flow, said warm side being exposed only to said inspired fluid flow in said inspiration branch, said cold side being exposed to only said expired fluid flow, wherein said warm side is not in direct fluid communication with said expired fluid flow, and said cold side is not in direct fluid communication with said inspired fluid flow.