Exhaust system for bone cement

Details Exhaust system for bone cement Exhaust system for bone cement

1976-06-07

1977-12-13

Capossela, Ronald C.

Surgery

Truss

Pad

128 1R, 417 12, F23J 1100

Patent

active

040622746

ABSTRACT:
An exhaust system for evacuating the toxic fumes produced when mixing bone cement in a surgical operating room. A fan unit located within a vacuum plenum draws fume-laden air from a hood under which the bone cement is mixed, and exhausts the fume-laden air into a safe external atmosphere. A short interval timer is provided so that the system may be switched on by a non-sterile member of the operating team and thereafter automatically turned off. The capacity of the fan is relatively large as compared to the area of the hood so that all of the fumes are effectively exhausted during the relatively short cycle of operation of the system and are substantially diluted with air so as not to create a polluting effect of the external atmosphere to which the effluent is exhausted. A barometric damper located between the fan and the external atmosphere prevents the external atmosphere from entering the operating room when the fan is not in operation.

REFERENCES:
patent: 879463 (1908-02-01), Hansen
patent: 2331876 (1943-10-01), Walpole
patent: 3479947 (1969-11-01), Myers
patent: 3814542 (1974-06-01), Iglesias et al.

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