Retractable intravenous needle assembly
November 14, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesWinged catheter placement assembly Retractable safety needle Puncture needle assembly Protective sheath for catheter assembly Apparatus for safe use and disposal of needles Safety device for medical needles Device for the administration of implants IV infusion set with sheath Intravenous catheter placement device Adjustable catheter assembly InventorAssigneeApplicationNo. 612789 filed on 11/14/1990US Classes:604/171, Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct604/110, Having means for preventing reuse of device604/177, And used as conduit manipulator (e.g., foldable gripper wings, etc.)604/198Cover or protector for body entering conduit movable axially relative to one anotherExaminersPrimary: Rosenbaum, C. FredAssistant: Polutta, Mark O. Attorney, Agent or FirmInternational ClassA61M 005/00AbstractA retractable intravenous needle assembly wherein a cannula is mounted on a hub within an interior passage formed in a housing in which the cannula and hub are slidably mounted so as to have the cannula point manually extend beyond the housing. Flexible wings extending laterally from the housing are manually folded upwardly to release a locking stop formed in the interior passage from engaging a locking lug on the hub. The cannula point is then manually retracted into the housing until the locking lug engages a locking recess formed in the interior passage to lock the hub in the housing. The locking recess is so located in the passage that the housing completely encloses the cannula point when the locking lug is locked in the locking recess, thus facilitating handling and disposal of the used assembly without endangering hospital personnel.Field of SearchHaving guard on piercing conduit for protecting body entering conduitHaving cover or protector for body entering conduit Entire body entering conduit stored in cavity in piston or piston actuator inside syringe prior to use Portion of body entering conduit stored in material receiving syringe reservoir Common cover or protector for body entering conduit and material syringe reservoir Cover or protector for body entering conduit movable axially relative to one another Removable cover or protector for body inserted conduit Body piercing condit (e.g., needle, etc.) Specific structure for preventing or minimizing inconvenience casued by breakage during insertion of conduit into body Specific structure for preventing coring of body tissue Having means for preventing reuse of device Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct Means for securing conduit to body And used as conduit manipulator (e.g., foldable gripper wings, etc.) Syringe, means to protect user By electrical or thermal application | |
