Endoscope pressure equalization system and method
    5.
    发明授权
    Endoscope pressure equalization system and method 失效
    内镜压力均衡系统及方法

    公开(公告)号:US5807238A

    公开(公告)日:1998-09-15

    申请号:US560247

    申请日:1995-11-21

    摘要: A pressure equalization device connects to a port on an endoscope and equalizes the pressure within the endoscope to an environment thereabout. An outlet check valve allows flow out of the port and blocks flow into the port. A filter may be provided for preventing known chemical agents from entering the port. If the agent is hydrogen peroxide, the filter preferably comprises a catalyst, such as copper wool, for decomposing the hydrogen peroxide into water and oxygen. An inlet check valve may also be provided to communicate with the endoscope port and allow flow into the port in response to a downstream pressure gradient exceeding a predetermined value.

    摘要翻译: 压力均衡装置连接到内窥镜上的端口,并将内窥镜内的压力与其周围的环境相平衡。 出口止回阀允许从端口流出并阻止流入端口。 可以提供过滤器以防止已知的化学试剂进入端口。 如果试剂是过氧化氢,则过滤器优选包括用于将过氧化氢分解成水和氧的催化剂,例如铜棉。 还可以设置入口止回阀以与内窥镜端口通信,并且响应于超过预定值的下游压力梯度允许流入端口。

    Endoscope pressure equalization system and method
    9.
    发明授权
    Endoscope pressure equalization system and method 失效
    内镜压力均衡系统及方法

    公开(公告)号:US5634880A

    公开(公告)日:1997-06-03

    申请号:US446377

    申请日:1995-05-22

    摘要: A pressure equalization device connects to a port on an endoscope and equalizes the pressure within the endoscope to an environment thereabout. An outlet check valve allows flow out of the port and blocks flow into the port. A filter may be provided for preventing known chemical agents from entering the port. If the agent is hydrogen peroxide, the filter preferably comprises a catalyst, such as copper wool, for decomposing the hydrogen peroxide into water and oxygen. An inlet check valve may also be provided to communicate with the endoscope port and allow flow into the port in response to a downstream pressure gradient exceeding a predetermined value.

    摘要翻译: 压力均衡装置连接到内窥镜上的端口,并将内窥镜内的压力与其周围的环境相平衡。 出口止回阀允许从端口流出并阻止流入端口。 可以提供过滤器以防止已知的化学试剂进入端口。 如果试剂是过氧化氢,则过滤器优选包括用于将过氧化氢分解成水和氧的催化剂,例如铜棉。 还可以设置入口止回阀以与内窥镜端口通信,并且响应于超过预定值的下游压力梯度允许流入端口。