Apparatus, system and methods for measuring a blood pressure gradient
    1.
    发明授权
    Apparatus, system and methods for measuring a blood pressure gradient 有权
    用于测量血压梯度的装置,系统和方法

    公开(公告)号:US09149230B2

    公开(公告)日:2015-10-06

    申请号:US14354624

    申请日:2012-10-26

    摘要: An apparatus (100), control system (150) and methods are provided for directly measuring a pressure gradient, i.e. by real-time pressure measurements, with particular application for in situ measurement of transvalvular blood pressure gradients for the aortic valve and other heart valves, using minimally-invasive techniques. The apparatus takes the form of a multi-sensor assembly, e.g. enclosed within a micro-catheter or a steerable guidewire, and comprises a plurality of optical pressure sensors (10) is arranged along a length of the distal end portion (101), for measuring pressure simultaneously at each sensor location. For example, four MOMS optical pressure sensors (10), and optionally, a flow sensor (20), are incorporated into a distal end portion (101) having a diameter of 0.89 mm or less, and preferably 0.46 mm or less. Beneficially, all sensors are optically coupled, via respective optical fibers (11), to an optical coupler (112) at the proximal end of the multi-sensor apparatus, without requiring electrical connections.

    摘要翻译: 提供了一种设备(100),控制系统(150)和方法,用于直接测量压力梯度,即通过实时压力测量,具体应用于原位测量主动脉瓣和其他心脏瓣膜的跨瓣血压梯度 ,使用微创技术。 该装置采用多传感器组件的形式,例如, 封闭在微导管或可导向的导丝内,并且包括沿着远端部分(101)的长度布置的多个光学压力传感器(10),用于在每个传感器位置同时测量压力。 例如,四个MOMS光学压力传感器(10)和任选的流量传感器(20)被并入直径为0.89mm或更小,优选为0.46mm或更小的远端部分(101)中。 有利的是,所有传感器经由相应的光纤(11)被光学耦合到多传感器设备的近端的光耦合器(112),而不需要电连接。

    APPARATUS, SYSTEM AND METHODS FOR MEASURING A BLOOD PRESSURE GRADIENT
    2.
    发明申请
    APPARATUS, SYSTEM AND METHODS FOR MEASURING A BLOOD PRESSURE GRADIENT 有权
    用于测量血液压力梯度的装置,系统和方法

    公开(公告)号:US20140249386A1

    公开(公告)日:2014-09-04

    申请号:US14354624

    申请日:2012-10-26

    摘要: An apparatus (100), control system (150) and methods are provided for directly measuring a pressure gradient, i.e. by real-time pressure measurements, with particular application for in situ measurement of transvalvular blood pressure gradients for the aortic valve and other heart valves, using minimally-invasive techniques. The apparatus takes the form of a multi-sensor assembly, e.g. enclosed within a micro-catheter or a steerable guidewire, and comprises a plurality of optical pressure sensors (10) is arranged along a length of the distal end portion (101), for measuring pressure simultaneously at each sensor location. For example, four MOMS optical pressure sensors (10), and optionally, a flow sensor (20), are incorporated into a distal end portion (101) having a diameter of 0.89 mm or less, and preferably 0.46 mm or less. Beneficially, all sensors are optically coupled, via respective optical fibers (11), to an optical coupler (112) at the proximal end of the multi-sensor apparatus, without requiring electrical connections.

    摘要翻译: 提供了一种设备(100),控制系统(150)和方法,用于直接测量压力梯度,即通过实时压力测量,具体应用于原位测量主动脉瓣和其他心脏瓣膜的跨瓣血压梯度 ,使用微创技术。 该装置采用多传感器组件的形式,例如, 封闭在微导管或可导向的导丝内,并且包括沿着远端部分(101)的长度布置的多个光学压力传感器(10),用于在每个传感器位置同时测量压力。 例如,四个MOMS光学压力传感器(10)和任选的流量传感器(20)被并入直径为0.89mm或更小,优选为0.46mm或更小的远端部分(101)中。 有利的是,所有传感器经由相应的光纤(11)被光学耦合到多传感器设备的近端的光耦合器(112),而不需要电连接。

    FLUID TEMPERATURE AND FLOW SENSOR APPARATUS AND SYSTEM FOR CARDIOVASCULAR AND OTHER MEDICAL APPLICATIONS
    3.
    发明申请
    FLUID TEMPERATURE AND FLOW SENSOR APPARATUS AND SYSTEM FOR CARDIOVASCULAR AND OTHER MEDICAL APPLICATIONS 审中-公开
    流体温度和流量传感器装置及其他医疗应用系统

    公开(公告)号:US20140243688A1

    公开(公告)日:2014-08-28

    申请号:US14354588

    申请日:2012-10-25

    IPC分类号: A61B5/01 A61B5/026

    摘要: Apparatus (100) is provided comprising an optical micro-sensor (10) for directly measuring a fluid temperature and flow by thermoconvection, which suitable for medical applications, e.g. using minimally-invasive cardiovascular techniques. A multi-sensor apparatus (100) may take the form of a micro-catheter or steerable guidewire, equipped with a plurality of miniaturized optical sensors (10) arranged along a length of the distal end (101), each coupled via optical fibers (11) to a proximal end (102) comprising an input/output connector (112) to the control system (110), without the need for electrical connections. This enables direct measurement of blood flow, temperature and/or blood pressure simultaneously at several locations within the blood vessels or the heart, including transvalvular measurements. Preferably, the distal end portion has a diameter of 0.89 mm (0.035″) or less, and more preferably 0.46 mm (0.018″) or less, so that there is negligible effect on valve movement, transvalvular pressure gradient and flow during measurement.

    摘要翻译: 提供了一种设备(100),其包括用于直接测量流体温度和流量的光学微传感器(10),其通过热对流而适用于医疗应用,例如, 使用微创心血管技术。 多传感器装置(100)可以采取微导管或可导向导丝的形式,其配备有沿着远端(101)的长度布置的多个小型化光学传感器(10),每个小型化光学传感器通过光纤 11)连接到包括到控制系统(110)的输入/输出连接器(112)的近端(102),而不需要电连接。 这使得能够在血管或心脏内的多个位置处同时直接测量血流量,温度和/或血压,包括跨瓣膜测量。 优选地,远端部分的直径为0.89mm(0.035“)或更小,更优选为0.46mm(0.018”)或更小,使得在测量期间对阀移动,跨瓣压力梯度和流动的影响可忽略不计。