发明授权
- 专利标题: System and method for tissue sealing
- 专利标题(中): 组织密封的系统和方法
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申请号: US13483815申请日: 2012-05-30
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公开(公告)号: US09186200B2公开(公告)日: 2015-11-17
- 发明人: Jeffrey R. Unger , Ryan C. Artale , Joshua A. Keller , Gregory P. Milner , Kenneth C. Brockmann , Alexander M. Waskiewicz , Rebecca J. Coulson , Jessica E. C. Olson
- 申请人: Jeffrey R. Unger , Ryan C. Artale , Joshua A. Keller , Gregory P. Milner , Kenneth C. Brockmann , Alexander M. Waskiewicz , Rebecca J. Coulson , Jessica E. C. Olson
- 申请人地址: CH Neuhausen am Rheinfall
- 专利权人: Covidien AG
- 当前专利权人: Covidien AG
- 当前专利权人地址: CH Neuhausen am Rheinfall
- 主分类号: A61B18/18
- IPC分类号: A61B18/18 ; A61B18/12 ; A61B18/14 ; A61B17/00 ; A61B18/00
摘要:
An electrosurgical generator is disclosed. The generator includes an RF output stage configured to supply electrosurgical energy to tissue via at least one active electrode configured to apply electrosurgical energy to tissue; sensing circuitry configured to measure impedance of tissue; and a controller. The controller is configured to determine occurrence of a tissue reaction as a function of a minimum impedance value and a predetermined rise in impedance, wherein tissue reaction corresponds to a boiling point of tissue fluid; generate a target impedance trajectory as a function of measured impedance and desired rate of change based on the tissue reaction determination, wherein the target impedance trajectory includes a plurality of target impedance values; and drive tissue impedance along the target impedance trajectory by adjusting the output of the electrosurgical generator to substantially match tissue impedance to a corresponding target impedance for at least a predetermined minimum time period.
公开/授权文献
- US20120283731A1 System and Method for Tissue Sealing 公开/授权日:2012-11-08