公开(公告)号：US11701012B2

公开(公告)日：2023-07-18

申请号：US17176629

申请日：2021-02-16

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Christopher Murphy ,  Sean Ward ,  Fiachra Sweeney

IPC: A61B5/021 ,  A61B5/0215 ,  A61B5/00 ,  A61B5/02

CPC classification number: A61B5/02141 ,  A61B5/02007 ,  A61B5/0215 ,  A61B5/6852 ,  A61B2562/0247

Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a pressure sensing wire extending to the distal portion of the elongate shaft. The wire has a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is spaced apart from the pressure sensor wire to allow the pressure sensor and the pressure sensor wire to move independently from one another.

公开(公告)号：US10194812B2

公开(公告)日：2019-02-05

申请号：US14568466

申请日：2014-12-12

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Fiachra Sweeney ,  Barry O'Connell ,  Christopher Murphy

IPC: A61B5/0215 ,  A61B5/02 ,  A61B5/00 ,  A61B5/026 ,  A61M25/00

Abstract: A processing system received data from a Fractional Flow Reserve device and communicates data to a conventional hemodynamic monitoring system having pressure displays. The processing system receives proximal pressure measurement signal from an aortic pressure measurement device and a distal pressure measurement signal from a distal pressure measurement device. A processor computes an FFR ratio from the proximal pressure measurement signal and the distal pressure measurement signal, and converts FFR ratio to a pressure format such that the FFR ratio reads on the conventional hemodynamic monitoring system as a pressure in units of pressure. The processing system transmits the proximal pressure measurement signal, the distal pressure measurement signal, and the FFR ratio in pressure format to the conventional hemodynamic monitoring system.

公开(公告)号：US12053265B2

公开(公告)日：2024-08-06

申请号：US17740981

申请日：2022-05-10

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Christopher Murphy ,  Fiachra Sweeney ,  John Kelly

IPC: A61B5/0215 ,  A61B5/00 ,  A61B5/02

CPC classification number: A61B5/0215 ,  A61B5/02007 ,  A61B5/6852 ,  A61B5/0084 ,  A61B5/6876 ,  A61B2562/0247 ,  A61B2562/187

Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a proximal end optionally coupled to a handle or luer fitting and a distal end having a distal opening. A pressure sensing wire extends to the distal portion of the elongate shaft to be coupled to a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending or flexing stress or strain experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending or flexing stress and strain, the sensor is mounted so that the sensor is spaced apart from the elongate shaft of the catheter.

公开(公告)号：US20160166158A1

公开(公告)日：2016-06-16

申请号：US14568466

申请日：2014-12-12

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Fiachra Sweeney ,  Barry O'Connell ,  Christopher Murphy

IPC: A61B5/0215 ,  A61B5/00 ,  A61B5/026

CPC classification number: A61B5/0215 ,  A61B5/0004 ,  A61B5/02007 ,  A61B5/02028 ,  A61B5/026 ,  A61B5/7278 ,  A61B5/742 ,  A61M2025/0002

Abstract: A processing system received data from a Fractional Flow Reserve device and communicates data to a conventional hemodynamic monitoring system having pressure displays. The processing system receives proximal pressure measurement signal from an aortic pressure measurement device and a distal pressure measurement signal from a distal pressure measurement device. A processor computes an FFR ratio from the proximal pressure measurement signal and the distal pressure measurement signal, and converts FFR ratio to a pressure format such that the FFR ratio reads on the conventional hemodynamic monitoring system as a pressure in units of pressure. The processing system transmits the proximal pressure measurement signal, the distal pressure measurement signal, and the FFR ratio in pressure format to the conventional hemodynamic monitoring system.

Abstract translation: 处理系统从分数流量储备装置接收数据，并将数据传送到具有压力显示器的常规血液动力学监测系统。 处理系统从远端压力测量装置接收来自主动脉压力测量装置的近端压力测量信号和远端压力测量信号。 处理器从近端压力测量信号和远端压力测量信号计算FFR比，并且将FFR比转换成压力格式，使得FFR比率以常压血液动力学监测系统读取作为压力单位的压力。 处理系统将压力测量信号，远端压力测量信号和压力格式的FFR比传输到常规血液动力学监测系统。

公开(公告)号：US20150359438A1

公开(公告)日：2015-12-17

申请号：US14595884

申请日：2015-01-13

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Fiachra Sweeney ,  Christopher Murphy

IPC: A61B5/0215 ,  A61B5/00 ,  A61B5/02

CPC classification number: A61B5/0215 ,  A61B5/02007 ,  A61B5/6852 ,  A61B2562/0247

Abstract: Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.

Abstract translation: 当通过脉管系统跟踪导管时，安装在分流储备导管上的压力传感器经受的弯曲应力会导致传感器的变形，从而产生不正确的压力读数或弯曲误差。 为了将传感器与弯曲应力隔离，传感器安装有一端联接到轴的远端，而传感器的另一端未联接到导管，使得传感器的一部分与 轴的远端。

公开(公告)号：US11330989B2

公开(公告)日：2022-05-17

申请号：US15077964

申请日：2016-03-23

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Christopher Murphy ,  Fiachra Sweeney ,  John Kelly

IPC: A61B5/0215 ,  A61B5/00 ,  A61B5/02

Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a proximal end optionally coupled to a handle or luer fitting and a distal end having a distal opening. A pressure sensing wire extends to the distal portion of the elongate shaft to be coupled to a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending or flexing stress or strain experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending or flexing stress and strain, the sensor is mounted so that the sensor is spaced apart from the elongate shaft of the catheter.

公开(公告)号：US10973418B2

公开(公告)日：2021-04-13

申请号：US14920722

申请日：2015-10-22

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Christopher Murphy ,  Sean Ward ,  Fiachra Sweeney

IPC: A61B5/021 ,  A61B5/0215 ,  A61B5/00 ,  A61B5/02

Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a pressure sensing wire extending to the distal portion of the elongate shaft. The wire has a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is spaced apart from the pressure sensor wire to allow the pressure sensor and the pressure sensor wire to move independently from one another.

公开(公告)号：US10201284B2

公开(公告)日：2019-02-12

申请号：US14595884

申请日：2015-01-13

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Fiachra Sweeney ,  Christopher Murphy

IPC: A61B5/0215 ,  A61B5/02 ,  A61B5/00

Abstract: Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.

公开(公告)号：US20160081564A1

公开(公告)日：2016-03-24

申请号：US14920722

申请日：2015-10-22

Applicant: Medtronic Vascular, Inc.

Inventor： Gerry McCaffrey ,  Christopher Murphy ,  Sean Ward ,  Fiachra Sweeney

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/0215

CPC classification number: A61B5/02141 ,  A61B5/02007 ,  A61B5/0215 ,  A61B5/6852 ,  A61B2562/0247

Abstract: A catheter, such as a fractional flow reserve catheter, includes an elongate shaft having a pressure sensing wire extending to the distal portion of the elongate shaft. The wire has a pressure sensor mounted on the distal end for measuring a pressure of a fluid within lumen of vessel. The pressure sensor wire is disposed within a pocket formed adjacent to the pressure sensor thereby minimizing the profile of the catheter. Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is spaced apart from the pressure sensor wire to allow the pressure sensor and the pressure sensor wire to move independently from one another.

Abstract translation: 诸如分数储备导管的导管包括细长轴，其具有延伸到细长轴的远端部分的压力感测线。 导线具有安装在远端的压力传感器，用于测量容器内腔内的流体的压力。 压力传感器线设置在邻近压力传感器形成的凹穴内，从而使导管的轮廓最小化。 当通过脉管系统跟踪导管时，安装在分流储备导管上的压力传感器经受的弯曲应力会导致传感器的变形，从而产生不正确的压力读数或弯曲误差。 为了将传感器与弯曲应力隔离，传感器与压力传感器线间隔开，以使压力传感器和压力传感器线彼此独立地移动。

公开(公告)号：US11850030B2

公开(公告)日：2023-12-26

申请号：US16233861

申请日：2018-12-27

Applicant: MEDTRONIC VASCULAR, INC.

Inventor： Gerry McCaffrey ,  Fiachra Sweeney ,  Christopher Murphy

IPC: A61B5/0215 ,  A61B5/02 ,  A61B5/00

CPC classification number: A61B5/0215 ,  A61B5/02007 ,  A61B5/6852 ,  A61B2562/0247

Abstract: Bending stresses experienced by a pressure sensor mounted to a fractional flow reserve catheter when tracking the catheter through the vasculature creates a distortion of the sensor resulting in an incorrect pressure reading or bend error. In order to isolate the sensor from bending stresses, the sensor is mounted with one end coupled to the distal end of the shaft while the other end of the sensor is not coupled to the catheter so that a portion of the sensor is spaced apart from the distal end of the shaft.