Filter device for a stracheostoma

Details Filter device for a stracheostoma Filter device for a stracheostoma

A - Human Necessities

61

M

A61M 16/00 (2006.01) A61M 16/04 (2006.01) A61M 16/10 (2006.01) B01D 39/16 (2006.01) B01D 39/18 (2006.01) B01D 39/20 (2006.01)

Patent

CA 2139669

2139669 9401199 PCTABS00030 A device for filtering air that is to be breathed through a tracheostoma, to simulate the role of the nose particularly in patients who have received a tracheostomy comprises a filter (20). The filter comprises a pre-filter (21) formed from electrostatically charged fibres, a first layer (22) formed from activated carbon and a second layer (23) a hydrophilic material such as one that is based on regenerated cellulose material. The filter includes a layer of adhesive by which it can be held in place when in use, and a cover layer (24) on its exposed surface.

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