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公开(公告)号：US06659959B2
公开(公告)日：2003-12-09
申请号：US09825130
申请日：2001-04-03
IPC分类号： A61B502
摘要： The disclosed embodiments present improved catheters with physiological sensors. In one embodiment, the catheter includes, generally, a pressure transducer/electronics assembly connected to a pressure transmission catheter. The pressure transmission catheter includes a hollow tube made from a low compliance material. The distal end of the hollow tube is filled with a gel-like material or plug which acts as a barrier between the catheter liquid and the target fluid. The hollow tube is partially filled with a low viscosity liquid and is in fluid communication with the gel-like material and the pressure transducer. The pressure of the target fluid is transmitted to the liquid in the hollow tube through the gel-like material and/or the wall of the distal tip and is fluidically transmitted to the pressure transducer. The pressure transmission catheter is capable of being inserted into a vessel lumen or inserted into a lumen of a therapeutic or diagnostic catheter for biomedical applications. This provides the ability to directly measure the pressure effects of the treatment catheter. In another embodiment, the distal end of the pressure transmission catheter may be electrically conductive so as to detect and transmit an electric signal. Thus, in this embodiment, the catheter can be used to detect a physiological signal.
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公开(公告)号：US07481774B2
公开(公告)日：2009-01-27
申请号：US10420388
申请日：2003-04-22
摘要： The disclosed embodiments present improved catheters with physiological sensors. In one embodiment, the catheter includes, generally, a pressure transducer/electronics assembly connected to a pressure transmission catheter. The pressure transmission catheter includes a hollow tube made from a low compliance material. The distal end of the hollow tube is filled with a gel-like material or plug which acts as a barrier between the catheter liquid and the target fluid. The hollow tube is partially filled with a low viscosity liquid and is in fluid communication with the gel-like material and the pressure transducer. The pressure of the target fluid is transmitted to the liquid in the hollow tube through the gel-like material and/or the wall of the distal tip and is fluidically transmitted to the pressure transducer. The pressure transmission catheter may be inserted into a vessel lumen or into a lumen of a therapeutic or diagnostic catheter for biomedical applications.
摘要翻译： 所公开的实施例使用生理传感器呈现改进的导管。 在一个实施例中，导管通常包括连接到压力传递导管的压力换能器/电子组件。 压力传递导管包括由低顺应性材料制成的中空管。 中空管的远端填充有凝胶状材料或塞子，其作为导管液体和目标流体之间的屏障。 中空管部分地填充有低粘度液体并与凝胶状材料和压力传感器流体连通。 目标流体的压力通过凝胶状材料和/或远侧末端的壁传递到中空管中的液体，并且被流体传递到压力传感器。 压力传递导管可以插入血管内腔或用于生物医学应用的治疗或诊断导管的内腔中。
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公开(公告)号：US06296615B1
公开(公告)日：2001-10-02
申请号：US09264147
申请日：1999-03-05
IPC分类号： A61B502
摘要： The disclosed embodiments present improved catheters with physiological sensors. In one embodiment, the catheter includes, generally, a pressure transducer/electronics assembly connected to a pressure transmission catheter. The pressure transmission catheter includes a hollow tube made from a low compliance material. The distal end of the hollow tube is filled with a gel-like material or plug which acts as a barrier between the catheter liquid and the target fluid. The hollow tube is partially filled with a low viscosity liquid and is in fluid communication with the gel-like material and the pressure transducer. The pressure of the target fluid is transmitted to the liquid in the hollow tube through the gel-like material and/or the wall of the distal tip and is fluidically transmitted to the pressure transducer. The pressure transmission catheter is capable of being inserted into a vessel lumen or inserted into a lumen of a therapeutic or diagnostic catheter for biomedical applications. This provides the ability to directly measure the pressure effects of the treatment catheter. In another embodiment, the distal end of the pressure transmission catheter may be electrically conductive so as to detect and transmit an electric signal. Thus, in this embodiment, the catheter can be used to detect a physiological signal.
摘要翻译： 所公开的实施例使用生理传感器呈现改进的导管。 在一个实施例中，导管通常包括连接到压力传递导管的压力传感器/电子组件。 压力传递导管包括由低顺应性材料制成的中空管。 中空管的远端填充有凝胶状材料或塞子，其作为导管液体和目标流体之间的屏障。 中空管部分地填充有低粘度液体并与凝胶状材料和压力传感器流体连通。 目标流体的压力通过凝胶状材料和/或远侧末端的壁传递到中空管中的液体，并且被流体传递到压力传感器。 压力传递导管能够插入血管内腔或插入用于生物医学应用的治疗或诊断导管的内腔中。 这提供了直接测量治疗导管的压力作用的能力。 在另一个实施例中，压力传输导管的远端可以是导电的，以便检测和传输电信号。 因此，在本实施例中，导管可用于检测生理信号。
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