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    • 5. 发明授权
    • Scavenging medical hood
    • 清扫医疗罩
    • US4949714A
    • 1990-08-21
    • US385892
    • 1989-07-26
    • Robert L. Orr
    • Robert L. Orr
    • A61G10/04A61M16/00A61M16/06
    • A61M16/009A61G10/04A61M16/0093A61M16/0627A61M2209/082A61M2209/084Y10S128/91
    • A scavenging medical hood includes a hood for fitting over the head of a patient. A gas inlet port leads to the interior of the hood for supplying the interior of the hood with an appropriate respiratory gas and an aerosolized medicinal agent contained within that respiratory gas. A gas outlet connects between the interior of the hood and the ambient air for discharge of gas from the interior of the hood including any residual aerosolized medicinal agent remaining in that discharged gas. A vacuum port is located adjacent to the gas outlet. A vacuum is applied to the vacuum port via a suitable motorized vacuum source. Vacuum at the vacuum port aspirates gas from the area of the gas outlet to aspirate respiratory gas, residual aerosolized medicinal agent still suspended in the respiratory gas and ambient air from the vicinity of the gas outlet into the vacuum port. A filter located in the vacuum line serves to filter out the residual aerosolized medicinal agent from the aspirate in the gas line.
    • 清扫医疗罩包括用于装配在患者头部上的罩。 气体入口端口通向罩的内部,用于向罩内部供应适当的呼吸气体和包含在该呼吸气体内的雾化药剂。 气体出口连接在发动机罩的内部和环境空气之间,用于从发动机罩的内部排放气体,包括残留在该排出气体中的残留的雾化药剂。 真空口位于气体出口附近。 通过适当的电动真空源将真空施加到真空端口。 真空口处的真空吸出气体出口区域的气体吸入呼吸气体,残留的雾化药剂仍然悬浮在呼吸气体和环境空气中,从气体出口附近进入真空口。 位于真空管中的过滤器用于从气体管线中的吸出物中滤出残留的雾化药剂。