公开(公告)号：US20120265278A1

公开(公告)日：2012-10-18

申请号：US13255102

申请日：2009-12-22

申请人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds

发明人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds

IPC分类号： A61F7/12 ,  A61F7/00

CPC分类号： A61B18/02 ,  A61B2018/00041 ,  A61B2018/0281 ,  A61B2018/0293 ,  A61F2007/0052 ,  A61F2007/0056

摘要： A system for treating tissue in a patient includes a body having a cooling fluid supply path and a tissue piercing probe in fluid communication with the cooling fluid supply path. The probe extends distally from the body and is insertable into the tissue through the patient's skin. A cooling fluid source is fluidly coupled with the probe such that when cooling is initiated, cooling fluid flows in the probe thereby cooling the probe and any adjacent tissue. A heater element is in thermal engagement with the cooling fluid source and a power source provides power to the heater element thereby heating the cooling fluid. The power source has sufficient power to heat the cooling fluid to at least a desired temperature but has insufficient power to heat the cooling fluid above a critical temperature which results in rupture of the cooling fluid source.

摘要翻译： 用于治疗患者组织的系统包括具有冷却流体供应路径和与冷却流体供应路径流体连通的组织刺穿探针的主体。 探头从身体向远端延伸，并通过病人的皮肤插入组织。 冷却流体源与探针流体耦合，使得当冷却开始时，冷却流体在探针中流动，从而冷却探针和任何相邻组织。 加热器元件与冷却流体源热接合，并且电源为加热器元件提供电力，从而加热冷却流体。 电源具有足够的功率以将冷却流体加热到至少所需温度，但是具有不足以将冷却流体加热到高于导致冷却流体源破裂的临界温度以上的功率。

公开(公告)号：US09066712B2

公开(公告)日：2015-06-30

申请号：US13255102

申请日：2009-12-22

申请人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds

发明人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds

IPC分类号： A61B18/18 ,  A61B18/02 ,  A61B18/00 ,  A61F7/00

CPC分类号： A61B18/02 ,  A61B2018/00041 ,  A61B2018/0281 ,  A61B2018/0293 ,  A61F2007/0052 ,  A61F2007/0056

摘要： A system for treating tissue in a patient includes a body having a cooling fluid supply path and a tissue piercing probe in fluid communication with the cooling fluid supply path. The probe extends distally from the body and is insertable into the tissue through the patient's skin. A cooling fluid source is fluidly coupled with the probe such that when cooling is initiated, cooling fluid flows in the probe thereby cooling the probe and any adjacent tissue. A heater element is in thermal engagement with the cooling fluid source and a power source provides power to the heater element thereby heating the cooling fluid. The power source has sufficient power to heat the cooling fluid to at least a desired temperature but has insufficient power to heat the cooling fluid above a critical temperature which results in rupture of the cooling fluid source.

摘要翻译： 用于治疗患者组织的系统包括具有冷却流体供应路径和与冷却流体供应路径流体连通的组织刺穿探针的主体。 探头从身体向远端延伸，并通过病人的皮肤插入组织。 冷却流体源与探针流体耦合，使得当冷却开始时，冷却流体在探针中流动，从而冷却探针和任何相邻组织。 加热器元件与冷却流体源热接合，并且电源为加热器元件提供电力，从而加热冷却流体。 电源具有足够的功率以将冷却流体加热到至少所需温度，但是具有不足以将冷却流体加热到高于导致冷却流体源破裂的临界温度以上的功率。

公开(公告)号：US20120259322A1

公开(公告)日：2012-10-11

申请号：US13255101

申请日：2009-12-22

申请人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds ,  Phillip Olsen

发明人： Michael Fourkas ,  Ronald Williams ,  Punit Govenji ,  Byron Reynolds ,  Phillip Olsen

IPC分类号： A61B18/02 ,  A61F7/12

CPC分类号： A61B18/02 ,  A61B2017/00084 ,  A61B2018/00041 ,  A61B2018/00452 ,  A61B2018/0293

摘要： A systems and methods for controlling temperature in a cryogenic device includes providing a device having a probe and a heater element. A distal region of the probe is engaged with the target region. Measuring and recording current temperature of a proximal region of the probe and time of the measurement is used to determine slope of a temperature curve defined by two points. The first point is defined by the current temperature and time of measurement and a second point is defined by a previous measurement of proximal region temperature and time of measurement. When the slope is less than a slope threshold value a treatment flag is activated, treatment start time is recorded and the proximal region is heated with the heater element. Heating is discontinued and the treatment flag is deactivated after elapsed treatment time exceeds a duration threshold value.

摘要翻译： 用于控制低温装置中的温度的系统和方法包括提供具有探针和加热器元件的装置。 探针的远侧区域与目标区域接合。 测量和记录探头近端区域的当前温度和测量时间用于确定由两点定义的温度曲线的斜率。 第一点由当前的测量温度和时间定义，第二个点由先前测量的近端区域温度和测量时间定义。 当斜率小于斜率阈值时，处理标志被激活，记录处理开始时间，并且用加热器元件加热近端区域。 加热停止，经过治疗时间超过持续时间阈值后，治疗标志被禁用。