Plasma knife
Patent 6443948 Issued on September 3, 2002. Estimated Expiration Date: 
February 20, 2021. 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 20, 2021. 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 ReferencesElectrosurgical conductive gas stream technique of achieving improved eschar for coagulation Power control for beam-type electrosurgical unit Device to stop bleeding in living human and animal tissue Patent #: 5843079 InventorAssigneeApplicationNo. 719691 filed on 02/20/2001US Classes:606/40, Coagulation219/121.36, Using plasma219/121.54, Control systems606/49coagulationExaminersPrimary: Cohen, Lee S.Attorney, Agent or FirmForeign Patent References
International ClassA61B 018/14Foreign Application Priority Data1998-06-24 SEAbstractA device for stopping a bleeding in living tissue in humans and animals by forming a necrotic layer in the tissue comprises a member for generating a dynamic plasma flow capable of wholly or partially penetrating an outer, porous layer of the necrotic layer. The device also has an electrosurgical generator arranged to transfer electric energy to the inner limit of the porous layer through a circuit that comprises the plasma flow and the tissue. | |
