Safety winged needle medical devices
Patent 5088982 Issued on February 18, 1992. Estimated Expiration Date: 
February 18, 2009. 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.
February 18, 2009. 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 References 2571683 2725058 3064648 3073306 3464581 3640275 3670727 3782383 3890971 Vertical synchronizing signal recording apparatus InventorAssigneeApplicationNo. 257407 filed on 10/13/1988US Classes:604/110, Having means for preventing reuse of device600/576, Manually supported collector with rigid intake tube (e.g., a hollow needle, etc.)604/192, Having cover or protector for body entering conduit604/198, Cover or protector for body entering conduit movable axially relative to one another604/263Removable cover or protector for body inserted conduitExaminersPrimary: Isabella, David J.Assistant: Reichle, K. M. Attorney, Agent or FirmInternational ClassesA61M 005/00232 234 AbstractShielded winged needled medical devices which minimize accidental needlesticks of the skin by an exposed contaminated needle are provided. The medical devices include a hollow inner tube having a pair of circumferential grooves on the outside thereof, and a slightly larger hollow winged shield which is slidable relative to the inner tube. Lugs circumferentially spaced about the rearward end of the shield yieldingly engage the rearward groove during use of the medical device and thereby permit normal use of an exposed needle. Thereafter, the shield may be moved relative to the tube along the long axis of the tube to a second position wherein the shield covers the now-contaminated needle. The flexibility of the material of the shield in conjunction with a shoulder on the inner tube body forwardly adjacent a forward circumferential groove permit the medical devices to be assembled. In an unshielded position, relative rotational movement between the inner tube and shield is prevented by providing a shield and inner tube of non-circular cross section, by providing a outwardly extending ratchet teeth on the forward end of the inner tube which engage corresponding inwardly extending teeth in the forward end of the winged outer shield, or by providing rear rotational locking wings on the inner tube which extend through axial slits in the rear of the winged shield.Field of SearchHaving means for preventing reuse of deviceHaving guard on piercing conduit for protecting body entering conduit And used as conduit manipulator (e.g., foldable gripper wings, etc.) Having 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 And extended therefrom by piston when syringe is used 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 Specific structure of means connecting body entering conduit to syringe Conduit holder attached to another syringe component by thread means Conduit holder attached to another injector component by cam Conduit or holder therefor removably attached to another injector component by friction With lubricating means to facilitate insertion Having means for indicating device is defective , used, or tampered with Means moved by person to inject or remove fluent material to or from body inserted conduit, holder, or reservoir Reservoir squeezed to expel material therefrom Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Having body piercing conduit mounted on syringe for rotation about its longitudinal axis Having structure for facilitating sterilization of syringe or preventing contamination of material therein By rotatable means (e.g., micrometer, etc.) Having collapsible material reservoir (e.g., squeeze bulb, etc.) Mechanical means (e.g., piston, clamp, etc.) moved to collapse reservoir Bellows-type reservoir | |
