System and method for detecting perforations in a body cavity
    1.
    发明授权
    System and method for detecting perforations in a body cavity 有权
    用于检测体腔穿孔的系统和方法

    公开(公告)号:US06743184B2

    公开(公告)日:2004-06-01

    申请号:US10400823

    申请日:2003-03-27

    IPC分类号: A61B500

    摘要: A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test lockout that prevents RF power delivery unless a perforation detection procedure previously has been performed.

    摘要翻译: 一种用于检测体腔中的穿孔的系统和方法。 根据本发明的方法,流体(液体或气体)被输送到体腔中以稍微加压空腔。 压力感测系统在预定的测试周期内监测空腔内的压力。 如果在测试期间空腔压力基本上不被维持,则在启动腔内处理之前,医生被警告进一步评估穿孔的空洞。 在系统的优选形式中,诸如RF消融系统的医疗系统具有穿孔检测功能。 该系统优选地包括防止RF功率传递的预测试锁定,除非先前已经执行了穿孔检测过程。

    System and method for detecting perforations in a body cavity
    2.
    发明授权
    System and method for detecting perforations in a body cavity 有权
    用于检测体腔穿孔的系统和方法

    公开(公告)号:US07063670B2

    公开(公告)日:2006-06-20

    申请号:US11056998

    申请日:2005-02-11

    IPC分类号: A61B5/00 A61M31/00

    摘要: A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.

    摘要翻译: 一种用于检测体腔中的穿孔的系统和方法。 根据本发明的方法,流体(液体或气体)被输送到体腔中以稍微加压空腔。 压力感测系统在预定的测试周期内监测空腔内的压力。 如果在测试期间空腔压力基本上不被维持,则在启动腔内处理之前,医生被警告进一步评估穿孔的空洞。 在系统的优选形式中,诸如RF消融系统的医疗系统具有穿孔检测功能。 该系统优选地包括预测试和后测试锁定系统。 锁定系统防止RF功率传递,除非在预定的测试周期期间,压力感测系统确定不存在穿孔,或者除非先前执行的穿孔检测程序确定穿孔是否存在,而且锁定系统随后被医生覆盖。

    System and method for detecting perforations in a body cavity
    4.
    发明授权
    System and method for detecting perforations in a body cavity 有权
    用于检测体腔穿孔的系统和方法

    公开(公告)号:US06554780B1

    公开(公告)日:2003-04-29

    申请号:US09710102

    申请日:2000-11-10

    IPC分类号: A61B5103

    摘要: A system and method for detecting perforations in a body cavity. A fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.

    摘要翻译: 一种用于检测体腔中的穿孔的系统和方法。 流体(液体或气体)被输送到体腔中以稍微加压空腔。 压力感测系统在预定的测试周期内监测空腔内的压力。 如果在测试期间空腔压力基本上不被维持,则在启动腔内处理之前,医生被警告进一步评估穿孔的空腔。 在系统的优选形式中,诸如RF消融系统的医疗系统具有穿孔检测功能。 该系统优选地包括预测试和后测试锁定系统。 锁定系统防止RF功率传递,除非在预定的测试周期期间,压力感测系统确定不存在穿孔,或者除非先前执行的穿孔检测程序确定穿孔是否存在,而且锁定系统随后被医生覆盖。

    Radio-frequency generator for powering an ablation device

    公开(公告)号:US08551082B2

    公开(公告)日:2013-10-08

    申请号:US13423908

    申请日:2012-03-19

    IPC分类号: A61B18/12

    摘要: An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.

    System and method for detecting perforations in a body cavity
    9.
    发明申请
    System and method for detecting perforations in a body cavity 有权
    用于检测体腔穿孔的系统和方法

    公开(公告)号:US20050143728A1

    公开(公告)日:2005-06-30

    申请号:US11056998

    申请日:2005-02-11

    摘要: A system and method for detecting perforations in a body cavity. In accordance with the method of the invention, a fluid (liquid or gas) is delivered into a body cavity to slightly pressurize the cavity. A pressure sensing system monitors the pressure within the cavity for a predetermined test period. If cavity pressure is not substantially sustained during the test period, the physician is alerted to further assess the cavity for perforations before initiating treatment within the cavity. In a preferred form of the system, a medical treatment system such as an RF ablation system is provided with perforation detection functionality. The system preferably includes a pre-test and post-test lockout system. The lockout system prevents RF power delivery unless, during a predetermined test period, the pressure sensing system determines that no perforation exists, or unless a previously performed perforation detection procedure determined a perforation was present but the lockout system was subsequently overridden by the physician.

    摘要翻译: 一种用于检测体腔中的穿孔的系统和方法。 根据本发明的方法,流体(液体或气体)被输送到体腔中以稍微加压空腔。 压力感测系统在预定的测试周期内监测空腔内的压力。 如果在测试期间空腔压力基本上不被维持,则在启动腔内处理之前,医生被警告进一步评估穿孔的空腔。 在系统的优选形式中,诸如RF消融系统的医疗系统具有穿孔检测功能。 该系统优选地包括预测试和后测试锁定系统。 锁定系统防止RF功率传递,除非在预定的测试周期期间,压力感测系统确定不存在穿孔,或者除非先前执行的穿孔检测程序确定穿孔是否存在,而且锁定系统随后被医生覆盖。