CONTINUITY CIRCUITS FOR DETECTING ACCESS DISCONNECTION

    公开(公告)号:WO2009042261A4

    公开(公告)日:2009-04-02

    申请号:PCT/US2008/066101

    申请日:2008-06-06

    Abstract: A monitor for an extracorporeal therapy access site is disclosed. The monitor includes a bandage atop or adjacent the access site and a sensor for monitoring the bandage. The bandage includes a layer of polymer that expands when wetted with blood. The expansion causes a break in continuity of the sensor, or in an alternate embodiment, causes a sensor to cease detecting a target. When the break occurs, the control circuit monitoring the bandage sends a signal that a break has occurred, and a remote monitor then takes appropriate action, such as ceasing therapy, sending an alert, or sounding an alarm. In another embodiment, connecting wires in a continuity circuit are held apart by a polymer that dissolves when contacted by blood. If a leak occurs and a small portion of the polymer dissolves, the wires make contact, thus detecting a blood leak.

    A METHOD OF REMOVING NITROUS OXIDE
    7.
    发明申请
    A METHOD OF REMOVING NITROUS OXIDE 审中-公开
    一种去除氧化亚氮的方法

    公开(公告)号:WO2007038581A1

    公开(公告)日:2007-04-05

    申请号:PCT/US2006/037650

    申请日:2006-09-27

    Abstract: Hydroxylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H 2 ) in an aqueous medium with nitrogen gas (N 2 ) as an inert gas. The formation of the hydroxylamine forms nitrous oxide gas (N 2 O). The gases and the water vapor are flowed away from the reactor in a vent gas stream enabling recycling of the gases. The N 2 O is removed from the vent gas stream to reduce flammability. Once the N 2 O is removed, the NO, H 2 , and N 2 are recycled and re-used in the reactor to form additional hydroxylamine. The N 2 O removed from the vent gas stream can be commercially sold or economically discarded.

    Abstract translation: 羟胺在反应器中通过在氮气(N 2/2)的水性介质中将一氧化氮气体(NO)与氢气(H 2 H 2)部分氢化形成为反应器, 惰性气体。 羟胺的形成形成一氧化二氮气体(N 2 O 2)。 气体和水蒸气以能够再循环气体的排气气流从反应器中流出。 从排出气流中除去N 2 O 2以降低可燃性。 一旦去除了N 2 O 2,则NO,H 2 N 2和N 2 O 2被再循环并重新用于反应器以形成额外的 羟胺。 从排放气流中除去的N 2 O 2可以商业销售或经济地丢弃。

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