Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue
Patent 5403311 Issued on April 4, 1995. Estimated Expiration Date: 
March 29, 2013. 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.
March 29, 2013. 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 1814791 3634652 3920021 Instrument for use in laparoscopic tubal cauterization Radio frequency cautery instrument and control unit therefor Combined electrosurgery/cautery system and method Bipolar electrosurgical knife Surgical cutting instrument Transcutaneous vasectomy apparatus and method Endoscopic apparatus with a laser light conductor InventorsAssigneeApplicationNo. 038903 filed on 03/29/1993US Classes:606/49, coagulation604/21, With tubular injection means inserted into body606/45, Cutting606/48, Bipolar electrodes606/50Bipolar electrodesExaminersPrimary: Pellegrino, Stephen C.Assistant: Peffley, Michael Attorney, Agent or FirmInternational ClassA61B 017/39AbstractA catheter includes a flexible elongated catheter body that defines a needle-receiving, or probe-receiving, lumen, a retractable tissue-penetrable needle, or probe, and an electrode mounted on the distal portion of the catheter body. The needle provides a fluid passage for introducing fluid into tissue to permit the introduction of sclerotic agents for enhancing electrocoagulation of the tissue, heat-responsive drugs for improving the bonding to tissue surfaces, or vaso-constrictor drugs. The probe can also have a passage for fluid. The electrode can provide bipolar electro-coagulation of tissue in combination with an additional electrode mounted on the catheter body, or alternatively, the electrode can be employed in combination with either the needle or probe to establish a bipolar electro-coagulation path through tissue. The needle, or probe, in combination with an external electrode can be used to provide unipolar electro-coagulation, or ablation. In certain instances, the electrode can be used to provide a mapping function inside cardiac chambers.Other References
Field of SearchInfrared, visible light, ultraviolet, X-ray or electrical energy applied to body (e.g., iontophoresis, etc.)With tubular injection means inserted into body With means for cutting, scarifying, or vibrating (e.g., ultrasonic, etc.) tissue Combined cutting-coagulation With feed back control Cutting Coagulation Applicators coagulation Bipolar electrodes Bipolar electrodes With formable electrode Cutting Endoscopic With fluid supply Internally applied With drug or medicament-dispensing Catheter or endocardial (inside heart) type With nonlinear locating portion With anchor means | |
