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    • 86. 发明申请
    • CAPACITIVE REUSABLE ELECTROSURGICAL RETURN ELECTRODE
    • 电容式电磁回路电极
    • WO2002058579A1
    • 2002-08-01
    • PCT/US2001/017435
    • 2001-05-31
    • MEGADYNE MEDICAL PRODUCTS, INC.
    • FLEENOR, Richard, P.KIEDA, David, B.ISAACSON, James, D.BORGMEIER, Paul, R.
    • A61B18/16
    • A61B18/16A61B2090/0813Y10S128/908
    • A capacitive reusable electrosurgical return electrode pad (60) for use with electrosurgery. Through selection of the electrode geometries and the impedance characteristics of the electrode, the electrode is self-regulating and self-limiting as to current density and temperature rise so as to prevent patient trauma. The electrosurgical return electrode can include a connector and a sheet of material having an effective bulk impedance equal to or greater than about 100,000 ohm cm. The electrode can have a working surface area from about 11 to about 1,500 square inches (or about 70 to about 10,000 square centimeters). The electrode can be disposed on the working surface of an operating table or dentist's chair immediately underlying a patient during electrosurgery. This very large working surface area eliminates the need for direct contact or contact through conducting gels and by employing washable surface areas, it is made readily cleanable and reusable.
    • 一种用于电外科手术的电容可重复使用的电外科返回电极垫(60)。 通过选择电极几何形状和电极的阻抗特性,电极对于电流密度和温度升高是自调节和自限制的,以防患者创伤。 电外科返回电极可以包括具有等于或大于约100,000欧姆厘米的有效体阻抗的连接器和材料片。 电极可具有约11至约1,500平方英寸(或约70至约10,000平方厘米)的工作表面积。 在电外科手术期间,电极可以放置在手术台或牙医的椅子的正下方。 这种非常大的工作表面积消除了通过导电凝胶直接接触或接触的需要,并且通过使用可洗的表面区域,使其易于清洁和可重复使用。
    • 87. 发明申请
    • APPARATUS AND METHOD FOR SHIELDING TISSUE DURING TUMOR ABLATION
    • 用于屏蔽在肿瘤消融期间保护组织的方法和装置
    • WO02019895A2
    • 2002-03-14
    • PCT/US2001/028048
    • 2001-09-06
    • A61B18/12A61B18/16A61B19/00A61B
    • A61B18/16A61B18/1233A61B90/04A61B2018/143A61B2018/1432A61B2018/1472A61B2090/0436
    • The present invention provides improved methods, systems and kits for protecting body tissues which are adjacent to tissues undergoing thermal treatment. Thermal treatment is often prescribed for tumors and other disease conditions within body organs and other tissue masses. The methods, systems, and kits are particularly useful for treating tumors which lie at or near the surface of an organ. One risk of treating such tumors is the possibility of mistargeting the tumor and penetrating a delivery cannula or portions of a treatment device beyond the surface into adjacent tissue. In the case of RF treatment, healthy surrounding tissue may be ablated. There is also a possibility of thermal damage to surrounding, non-targeted tissue. The above risks may be lessened or avoided with the use of an interface shield (20) between the target region and adjacent body tissues to shield surrounding organs (D) and tissue from treatment effects.
    • 本发明涉及用于保护接近热处理织物的解剖组织的方法,系统和试剂盒的改进。 对解剖器官或其他组织肿块内的肿瘤或其他病理状况进行热治疗是常见的。 这些方法,系统和程序特别适合于位于或靠近身体的表面的肿瘤,如肾,胰腺,胃,脾,和特别是肝脏的治疗。 这种肿瘤的治疗存在肿瘤靶向错误的风险,并且即使在组织或器官内,也可能存在肿瘤靶向错误以及给药插管或表面以下的治疗设备部件的渗透 相邻。 在无线电或电外科治疗的情况下,周围的健康组织可以直接切除。 即使肿瘤被正确靶向,也存在风险以热损伤周围的非目标组织。 在无线电或电外科治疗的情况下,散发的热量可以达到比待治疗器官的组织更脆弱和热敏的周围组织,这导致不需要的组织损伤。 为了减少或避免这些风险,除其他风险外,可以在目标区域和相邻解剖组织之间使用界面屏幕来屏蔽治疗对周围器官和组织的影响。