Patent ReferencesInfusion needle Automatic protracting and locking hypodermic needle guard Cannula insertion set with safety retracting needle Assembly of needle catheter protector Safety catheter Catheter insert device Indwelling placement device with guard Catheter inserter Intravenous catheter placement device Retractable needle InventorAssigneeApplicationNo. 685817 filed on 04/15/1991US Classes:604/165.02, Longitudinal movement604/198, Cover or protector for body entering conduit movable axially relative to one another604/263Removable cover or protector for body inserted conduitExaminersPrimary: Rosenbaum, C. FredAssistant: Polutta, Mark O. Attorney, Agent or FirmInternational ClassA61M 005/178AbstractProtective catheter devices are disclosed including a barrel for housing a catheter including a needle extending therefrom. The catheter is slidably retained within the barrel between a fully retracted position and an extended position, in which the needle can be inserted into a patient, and the device includes a locking mechanism for controlling the position of the needle within the barrel, which includes at least two positions; namely, a first position in which the needle is freely slidable within the barrel and a second position in which the needle is locked in its retracted position within the barrel, such that the needle cannot be displaced from its retracted position without repositioning the locking mechanism.Field of SearchRemovable cover or protector for body inserted conduitCover or protector for body entering conduit movable axially relative to one another Having means for preventing reuse of device Spring drives piston Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct Syringe, means to protect user | |