Body fluids barrier mask

Details Body fluids barrier mask Body fluids barrier mask

1987-10-02

1990-05-01

Hindenburg, Max

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820613, 12820621, 12820622, 12820619, A62B 710

Patent

active

049209604

ABSTRACT:
A face mask (10) is provided for covering the mouth and nose of a wearer (14). The mask (10) prevents the passage of liquid from external to the mask to the face of the wearer (14). The mask (10) has four layers including a special low density polyethylene barrier (26). The barrier (26) prevents the passage of liquid in at least one direction while freely allowing the passage of gases in both directions.

REFERENCES:
patent: 2916037 (1959-12-01), Hansen
patent: 3603315 (1971-09-01), Becker
patent: 3613678 (1971-10-01), Mayhew
patent: 3884227 (1975-05-01), Lutz et al.
patent: 3929135 (1975-12-01), Thompson
patent: 3989867 (1976-11-01), Sisson
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4419993 (1983-12-01), Petersen
patent: 4510931 (1985-04-01), Henderson et al.
patent: 4600002 (1986-07-01), Maryyanck et al.
patent: 4635628 (1987-01-01), Hubbard et al.
patent: 4662005 (1987-05-01), Grier-Idris
patent: 4684570 (1987-08-01), Malaney

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