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    • 2. 发明申请
    • HYDROSTATIC CIRCUITS WITH VARIABLE CHARGE AND VARIABLE FLUSHING SYSTEMS
    • 具有可变电荷和可变冲洗系统的静电电路
    • WO2012173815A2
    • 2012-12-20
    • PCT/US2012/040874
    • 2012-06-05
    • CATERPILLAR INC.DEMICK, Christopher, J.DVORAK, PaulSWICK, WilliamGUYARD, VincentELLIOTT, ChristopherPRUESS, Christopher
    • DEMICK, Christopher, J.DVORAK, PaulSWICK, WilliamGUYARD, VincentELLIOTT, ChristopherPRUESS, Christopher
    • F15B21/08F15B13/043F16K31/04F16K17/06
    • F16D31/00F15B21/042F15B2211/20553F15B2211/611F15B2211/7058F16H61/4104
    • A closed hydrostatic circuit (10) with variable charge and variable flushing systems is disclosed. A variable displacement charge pump (47) is configured to supply charge fluid and pilot control fluid to the hydrostatic circuit. An electronically controlled pressure regulating valve (43) is in communication with an output of the charge pump (47) and is linked to a controller (41). When the hydrostatic control system (10) detects a high hydraulic temperature condition, the electronically controlled pressure regulating valve (43), that is in communication with an output of the charge pump (47) and that is linked to a controller (41), increases the charge pump (47) flow. A bidirectional variable displacement hydrostatic motor (14) is connected in parallel to two input/output lines (16). A flush valve (15) is in communication with the hydrostatic motor (14) and both input/output lines (16). The flush valve (15) and hydrostatic motor (14) are both in communication with the flush orifice and a flush relief valve (22). When the pressure regulating valve (43) causes the charge pump (47) to operate at or near a full capacity, fluid exits the flush valve (15) and passes through both the flush orifice and the flush relief valve (22). In contrast, when the pressure regulating valve (43) causes the charge pump (47) to operate at a lower or near minimum capacity, fluid exits the flush valve (15) and passes through the flush orifice only without passing through the flush relief valve (22).
    • 公开了具有可变电荷和可变冲洗系统的封闭静液压回路(10)。 可变容量电荷泵(47)被配置为向静液压回路供应充液流体和先导控制流体。 电子控制压力调节阀(43)与电荷泵(47)的输出端连通并连接到控制器(41)。 当静液压控制系统(10)检测到高液压温度条件时,与电荷泵(47)的输出连通且与控制器(41)连接的电控压力调节阀(43) 增加电荷泵(47)的流量。 双向可变排量静液压马达(14)并联连接到两个输入/输出线(16)。 冲洗阀(15)与静液压马达(14)和两个输入/输出线(16)连通。 冲洗阀(15)和静液压马达(14)都与冲洗孔和冲水安全阀(22)连通。 当压力调节阀(43)使得电荷泵(47)以满容量运行或接近满容量时,流体离开冲洗阀(15)并通过冲洗孔和冲洗溢流阀(22)。 相反,当压力调节阀(43)使得电荷泵(47)以较低或接近最小容量运行时,流体离开冲洗阀(15)并仅通过冲洗孔而不通过冲洗溢流阀 (22)。
    • 3. 发明申请
    • STEERABLE ABLATION PROBE
    • 可操纵的解决问题
    • WO2004091417A1
    • 2004-10-28
    • PCT/US2004/009204
    • 2004-03-24
    • SCIMED LIFE SYSTEMS, INC.ELLIOTT, Christopher
    • ELLIOTT, Christopher
    • A61B18/14
    • A61B18/1477A61B2017/003A61B2018/143
    • A probe assembly for ablating tissue comprising an elongated shaft having a rigid section, a flexible section distally extending from the rigid section, and a tissue penetrating element associated with the flexible section. One or more ablative elements, such as electrodes, are also associated with the flexible section. The flexible section of the shaft can be flexed to deflect the tissue penetrating element, so that it can be steered through tissue, while avoiding sensitive anatomical structures, e.g., if the sensitive structure lies between the tissue region to be treated and the entry point of the probe assembly.
    • 一种用于消融组织的探针组件,包括具有刚性部分的细长轴,从所述刚性部分向远侧延伸的柔性部分和与所述柔性部分相关联的组织穿透元件。 一个或多个烧蚀元件,例如电极,也与柔性部分相关联。 轴的柔性部分可以弯曲以偏转组织穿透元件,使得其可以通过组织转向,同时避免敏感的解剖结构,例如,如果敏感结构位于要处理的组织区域和待处理组织区域的入口点之间 探头组件。