Protected needle assembly
August 10, 2015. 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 3134380 3354881 Automatically actionable sharpened needle-tip protection Single use, safety blood collection device Needle guard assembly for use with hypodermic syringes and the like Hypodermic syringe needle guard Syringe assembly Needle guard device Medical needle unit Safety syringe InventorApplicationNo. 513538 filed on 08/10/1995US Classes:604/263, Removable cover or protector for body inserted conduit604/192, Having cover or protector for body entering conduit604/198Cover or protector for body entering conduit movable axially relative to one anotherExaminersPrimary: Yasko, John D.Attorney, Agent or FirmInternational ClassA61M 005/32AbstractThe protected needle assembly is provided with various enhancements for improved use. In one embodiment, a V-shaped slot is provided at the rear of the guide slot so that the retractable sheath can be locked in a retracted position. In another embodiment, a cam surface is provided at the front of the guide slot to direct the projection on the sheath into a position to lock of the sheath in an extended position. An additional inclined guide portion may be provided at the forward end of the guide slot for intramuscular injection use. The movable sheath may also be mounted on a syringe without need for a resilient bias or may incorporate a coiled spring or rubber strip to bias the sheath into an extended position. Another embodiment allows for multiple or universal use of the needle assembly.Field of SearchRemovable cover or protector for body inserted conduitCover or protector for body entering conduit movable axially relative to one another Having cover or protector for body entering conduit Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Having means for preventing reuse of device | |
