公开(公告)号：WO1996034561A1

公开(公告)日：1996-11-07

申请号：PCT/US1996006030

申请日：1996-05-01

Applicant: HEART RHYTHM TECHNOLOGIES, INC.

Inventor： HEART RHYTHM TECHNOLOGIES, INC. ,  CASTELLANO, Thomas, M. ,  HAYZELDEN, Robert, C. ,  MAAHS, Tracy, D.

IPC: A61B08/00

CPC classification number: A61B17/2202 ,  A61B2017/00084 ,  A61B2017/00092 ,  A61B2017/00243

Abstract: A catheter (18) includes a piezoelectric transducer (24) mounted to the distal end (20). The band electrode (26), proximal to the piezoelectric transducer (24), may be used either individually or simultaneously with the tip electrode (22). In one embodiment, the piezoelectric transducer has the shape of a cylinder and, in another embodiment, a convex shape with a mounting flange. In the cylindrical shape, a plurality of surface mounted temperature sensors (28) are disposed within the piezoelectric transducer (24). The sensors (28) are electrically insulated and a sealing technique prevents the leakage of body fluids from penetrating the interior of the catheter through the sensor bores. The cylindrical transducer is supported on mounting members so that it is accurately mounted and sealed while, at the same time, the material used does not significantly dampen the transducer (24).

Abstract translation: 导管（18）包括安装到远端（20）的压电换能器（24）。 靠近压电换能器（24）的带状电极（26）可以单独使用或与尖端电极（22）同时使用。 在一个实施例中，压电换能器具有圆柱体的形状，在另一实施例中，具有安装凸缘的凸形形状。 在圆筒形状中，多个表面安装温度传感器（28）设置在压电换能器（24）内。 传感器（28）是电绝缘的，并且密封技术防止体液泄漏通过传感器孔穿透导管内部。 圆柱形换能器被支撑在安装构件上，使得其被精确地安装和密封，同时所使用的材料不会显着地损坏换能器（24）。

公开(公告)号：WO1998011826A1

公开(公告)日：1998-03-26

申请号：PCT/US1997015870

申请日：1997-09-09

Applicant: HEART RHYTHM TECHNOLOGIES, INC.

Inventor： HEART RHYTHM TECHNOLOGIES, INC. ,  SHERMAN, Marshall, L. ,  CASTELLANO, Thomas, M.

IPC: A61B17/00

CPC classification number: A61B17/2202 ,  A61B2017/00084 ,  A61B2017/00092 ,  A61B2017/00243

Abstract: An energy delivery system and method control the frequency of the power driving an ultrasonic device (24) to achieve more efficient power delivery. During operation of the ultrasonic device to deliver power to a patient site (16), the system and method automatically sweep the drive power through a frequency range, locate the series and parallel resonance frequencies, calculate the average of those frequencies and lock the power generator at that average frequency to drive the crystal. This frequency sweep procedure occurs automatically when the ultrasonic crystal is located at the patient site and the power generator operator presses the power-on switch to apply power. The method of tuning the power generator thus occurs when the crystal is at the site temperature and is transparent to the operator. The application of an external bio-layer to the crystal increases its bandwidth and its robustness. Mounting a temperature sensor (28) or sensors at the crystal permits monitoring of the crystal temperature and allows drive level control over the power generator to control the temperature at the crystal.

Abstract translation: 能量输送系统和方法控制驱动超声波装置（24）的功率的频率以实现更有效的功率输送。 在超声波设备运行期间向病人站点输送功率（16）时，系统和方法通过频率范围自动扫描驱动功率，定位串联和并联谐振频率，计算出这些频率的平均值并锁定发电机 以平均频率驱动晶体。 当超声波晶体位于患者现场时，该频率扫描过程自动发生，发电机操作者按下电源开关以施加电力。 因此，当晶体处于现场温度并且对操作者是透明的时，调谐发电机的方法发生。 外部生物层在晶体上的应用增加了其带宽和其鲁棒性。 在晶体上安装温度传感器（28）或传感器可以监控晶体温度，并允许发电机的驱动电平控制来控制晶体的温度。

公开(公告)号：WO1996034558A1

公开(公告)日：1996-11-07

申请号：PCT/US1996006031

申请日：1996-05-01

Applicant: HEART RHYTHM TECHNOLOGIES, INC.

Inventor： HEART RHYTHM TECHNOLOGIES, INC. ,  SHERMAN, Marshall, L. ,  CASTELLANO, Thomas, M. ,  MOYA, Jose, J.

IPC: A61B05/00

CPC classification number: A61B5/01

Abstract: This invention is a system for monitoring temperature comprising a first thermocouple temperature sensor (24) mounted to a catheter (10), the catheter (10) also having a connector with a plurality of connecting devices (38) for making the thermocouple signals available to external equipment. The connecting devices (38) are formed of a material dissimilar to at least one of the thermocouple leads such that a second thermocouple is created at the connection point. The second thermocouple produces a second temperature signal combines with the signal from the first thermocouple. A reference temperature sensor (44) is mounted to the connector (38) to sense the temperature at the connector and provide a reference temperature signal for use by a processor (66) in correcting the combined temperature signal to derive the first thermocouple signal received from the connector.

Abstract translation: 本发明是一种用于监测温度的系统，包括安装在导管（10）上的第一热电偶温度传感器（24），该导管（10）还具有连接器，多个连接装置（38）用于使热电偶信号可用于 外部设备。 连接装置（38）由不同于至少一个热电偶引线的材料形成，使得在连接点处形成第二热电偶。 第二个热电偶产生与第一个热电偶信号相结合的第二个温度信号。 参考温度传感器（44）安装到连接器（38）以感测连接器处的温度，并提供参考温度信号，供处理器（66）用于校正组合温度信号以导出从第一热电偶信号 连接器。