| 主权项 |
1. An apparatus for retrieval and storage of an oxygen tube comprising:
a motor attached to a rotatable spool, said rotatable spool enclosed in a housing; a control system comprising a microprocessor, wherein said control system controls retrieving of the oxygen tube onto the rotatable spool or dispensing of the oxygen tube from the rotatable spool; retrieval buttons, said retrieval buttons comprising at least two buttons, one to initiate a long retrieval time period over which a first length of the oxygen tube is retrieved onto the rotatable spool and one to initiate a short retrieval time period over which a second length of oxygen tube is retrieved onto the rotatable spool; a safety feature whereby upon initiation of the button for a long retrieval time period, the short retrieval time period button is deactivated, and whereby upon initiation of the button for a short time period, the button for a long retrieval time period is deactivated; and an adjustable retrieval delay input device that delays activation of the retrieval time periods when any of the retrieval buttons are selected.
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