초록 ▼

A personal exhaust system for individual use by the members of a surgical team in an operating room. It may be employed in conjunction with a disposable hood or combination hood and gown worn by each such person. Each system includes a d.c. powdered motor and blower unit adapted to be connected, via

A personal exhaust system for individual use by the members of a surgical team in an operating room. It may be employed in conjunction with a disposable hood or combination hood and gown worn by each such person. Each system includes a d.c. powdered motor and blower unit adapted to be connected, via a light weight power cord to an a.c.-to-d.c. converter and transformer, or switching mode power supply. A filter is utilized to remove contaminants from the air before it exhausts to the atmosphere. Each unit is provided with its own on-off switch and the flow of air for each unit is individually controlled. A battery back-up allows for short excursions away from the power supply. In another embodiment, fresh filtered air may be directed into the hood simultaneously with removal of stale air from the hood and its subsequent filtered exhaustion to the atmosphere.

대표청구항 ▼

A personal ventilating system for use with a surgical hood enveloping at least the wearer\s face and isolating from the surrounding atmosphere the breathing space proximate the wearer\s nose and mouth, said system comprising: inlet means for receiving air from the breathing space isolated by the sur

A personal ventilating system for use with a surgical hood enveloping at least the wearer\s face and isolating from the surrounding atmosphere the breathing space proximate the wearer\s nose and mouth, said system comprising: inlet means for receiving air from the breathing space isolated by the surgical hood; outlet means for exhausting to the surrounding atmosphere air flowing from said inlet means; filter means intermediate said inlet means and said outlet means for removing impurities from the air drawn from the breathing space within the surgical hood; adjustable flow inducing means including a fan and a variable speed d.c. motor for driving said fan operable for drawing air from the breathing space within the surgical hood and causing it to exhaust through said outlet means to the surrounding atmosphere; and a first power source for operating said flow inducing means to achieve a desired flow rate including a d.c. power supply distant from the wearer and having a variable speed control for selectively varying the voltage being directed to said motor; cord means selectively coupling said power supply and said motor; a second power source for operating said flow inducing means including a battery; and switch means for selectively energizing said motor either by said power supply or by said battery.