Nonreusable needle and catheter assembly
April 26, 2011. 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 561059 Closed system catheter with guide wire Automatic protracting and locking hypodermic needle guard Disease control syringe having a retractable needle Hypodermic needle guard Apparatus for safe use and disposal of needles Intravenous catheter placement device Protective sleeve for hypodermic needle Needle and catheter assembly Needle guard for syringe InventorsAssigneeApplicationNo. 692243 filed on 04/26/1991US Classes:604/110, Having means for preventing reuse of device604/192, Having cover or protector for body entering conduit604/198Cover or protector for body entering conduit movable axially relative to one anotherExaminersPrimary: Rosenbaum, C. FredAssistant: Stright, Ronald K. Jr. Attorney, Agent or FirmForeign Patent References
International ClassA61M 005/00AbstractA needle-safe flashback chamber for vascular/venous access devices wherein the needle cannula is automatically captured within a protective sheath upon being withdrawn from the patient to prevent accidental exposure of administering personnel to substantial health risk, such as that associated with the AIDS virus, hepatitis, and other infectious diseases is comprised of a needle cannula; a substantially transparent reservoir in fluid communication with the needle cannula; a vent formed in the cavity; and a substantially transparent sheath, sized and configured to slidably receive the needle cannula and cavity. The transparent reservoir can be partially withdrawn from the sheath, simultaneously withdrawing the needle cannula into the sheath. The needle cannula is attached to the cavity at an angled offset from the longitudinal axis of the cavity such that when the reservoir is withdrawn a sufficient distance from the sheath, the tip of the needle cannula will become axially misaligned with the needle cannula aperture formed therein, thereby preventing reextension of the needle cannula.Field of SearchHaving means for preventing reuse of deviceHaving guard on piercing conduit for protecting body entering conduit Body entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body duct Having cover or protector for body entering conduit 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 | |
