Device to be utilized in extracapsular cataract surgery
Patent 4386927 Issued on June 7, 1983. Estimated Expiration Date: 
July 21, 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.
July 21, 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 Re28405 1503579 3478430 Ophthalmic instrument Double lumen cannula apparatus Catheter package Intra-ocular pressure normalization technique and equipment Intra-ocular pressure normalization technique and equipment Irrigation and suction handpiece Patent #: 4299221 InventorAssigneeApplicationNo. 06/285635 filed on 07/21/1981US Classes:604/541Surgical drainExaminersPrimary: Apley, Richard J.Assistant: Kruter, J. L. Attorney, Agent or FirmInternational ClassA61F 9/007 (20060101)AbstractDisposable irrigation and aspiration apparatus is disclosed for use during extracapsular extraction of a cataract from a person's eye. A separate handpiece is provided to allow the surgeon to apply only irrigation flow to the eye during the operation. The irrigation-aspiration and irrigation handpieces are connected by a valve to give the operating surgeon his choice of instruments without changing the rate of irrigation flow. The outer surfaces of both handpieces are obstruction free to give the surgeon a high degree of preciseness and maneuverability.Other References
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