Catheter introducer assembly including needle tip shield
Patent 5215528 Issued on June 1, 1993. Estimated Expiration Date: 
February 7, 2012. 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 7, 2012. 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 2828744 2899960 3030953 3612050 Outside-the-needle catheter device with needle housing Needle sheath Assembly of stylet and catheter Retractable safety needle Cannula insertion set with safety retracting needle Assembly of needle catheter protector InventorsApplicationNo. 832559 filed on 02/07/1992US Classes:604/164.08Having cover or protector for body entering conduitExaminersPrimary: Yasko, John D.Attorney, Agent or FirmInternational ClassA61M 005/178AbstractAn assembly for introducing a catheter into a blood vessel is provided. The assembly includes a needle hub having a needle secured thereto. The needle includes an elongate shaft having a bevelled tip. A portion of the needle shaft adjacent to the tip has a relatively large outside diameter. The shaft diameter of this portion exceeds the diameter, of the shaft portion adjoining the tip and the diameter of the shaft portion extending between the enlarged shaft portion and the needle hub. A catheter is mounted over the shaft of the needle, and includes an inner surface which bears against the enlarged shaft portion. A substantially leak-proof seal is thereby provided between the catheter and the needle shaft. A needle tip cover is slidably mounted to the needle shaft and is engageable with the enlarged portion of the shaft to prevent its removal therefrom. The catheter is releasably mounted to the needle tip cover.Field of SearchBody entering conduit axially movable within flexible protective sheath facilitating sterile insertion into body ductHaving means for preventing reuse of device Injector or aspirator syringe supported only by person during use (e.g., hand held hypodermic syringe, douche tube with forced injection, etc.) Cover or protector for body entering conduit movable axially relative to one another Removable cover or protector for body inserted conduit | |
