Air handling system and method for an operating room

Details Air handling system and method for an operating room Air handling system and method for an operating room

1990-12-14

1992-02-11

Joyce, Harold

Ventilation

Clean room

454 66, 454190, 454236, E24F 7007

Patent

active

050866923

ABSTRACT:
An air handling system (10) and associated method for supplying filtered air to an operating room (14) in a manner which reduces concentrations of airborne bacteria and other particulates. The system (10) generally includes a plenum (18) mounted at the top of a first wall portion (22) of the operating room (14). A diffuser (48) is closely received in a diffuser opening (46) through which air is communicated from the air chamber (38) of the plenum to the operating room (14). The diffuser (48) is disposed so as to depend downwardly from a point proximate the ceiling of the operating room and converge toward the first end wall (22). Further, at least one air return (60) is provided at the second and opposite wall portion (54) of the operating room (14) for removing air from the room (14) and returning the air to the clean air supply unit (12). Another but smaller portion of the air is removed through at least one air return at the base of the first wall portion of the room. The method of the present invention includes directing a first current of clean air from a point near the upper corner of the operating room, diagonally across the operating region above the operating table and directing a second current of filtered air from a point proximate the upper corner of the operating room toward and beneath the operating table.

REFERENCES:
patent: 2847928 (1958-08-01), Glass
patent: 3150584 (1964-09-01), Allander
patent: 3838556 (1974-10-01), Finger
patent: 3908155 (1975-09-01), Skinner
patent: 3948155 (1976-04-01), Hedrick
patent: 4020752 (1977-05-01), Stephan
patent: 4598631 (1986-07-01), Everett
patent: 4781108 (1988-11-01), Nillson

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