Ophthalmic needle and method for manufacturing the same
Patent 4377897 Issued on March 29, 1983. Estimated Expiration Date: 
August 4, 2001. 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.
August 4, 2001. 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 3085573 3532476 3819150 3929126 Method of making sphere-passing tees for piping systems Ophthalmic instrument Continuous flow catheter device Flow control system Double lumen cannula apparatus Anti-vomiting, anti-aspirating oral-nasal gastric tube InventorsAssigneeApplicationNo. 06/289899 filed on 08/04/1981US Classes:29/516, Hollow body is axially joined cup or tube163/5, Processes604/272Body piercing condit (e.g., needle, etc.)ExaminersPrimary: Larson, Lowell A.Assistant: Nichols, Steven Attorney, Agent or FirmInternational ClassesB23P 15/00 (20060101)A61F 9/007 (20060101) AbstractAn improved ophthalmic needle and method for manufacturing the same for use with an ophthalmic instrument for extracapsular removal of a cataract. The needle comprises a coaxial tube portion, a separated tube portion, and a tank portion, interposed therebetween for flow conversion purposes. A metal-to-metal seal is effectuated between tubes at the coaxial portion by a spinning method employing a forming die in conjunction with a lathe. A unique use of fixtures is employed to properly orient the various tubes with respect to the tank and to effectuate joint sealing.Field of SearchHollow body is axially joined cup or tube | |
