Blade type rotatable surgical cutting instrument with improved cutter blade wear
Patent 4167943 Issued on September 18, 1979. Estimated Expiration Date: 
June 27, 1997. 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.
June 27, 1997. 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 3732858 Rotatable surgical instrument Patent #: 3945375 InventorAssigneeApplicationNo. 05/810495 filed on 06/27/1977US Classes:606/170, Cutter carried on elongated probe-like member600/565, Applying suction to sample604/22With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissueExaminersPrimary: Michell, Robert W.Assistant: Thaler, Michael H. Attorney, Agent or FirmInternational ClassA61F 9/007 (20060101)AbstractA cutter body for a surgical instrument having at least one blade surface thereon which rotates relative to a fixed blade surface. The cutter body and the rotatable blade are shaped to minimize the stress and wear of the rotatable cutter blade. | |
