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公开(公告)号：US11826128B2
公开(公告)日：2023-11-28
申请号：US16275433
申请日：2019-02-14
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner
IPC: A61B5/0215 , A61B5/02 , A61M25/09 , A61M25/00
CPC classification number: A61B5/02156 , A61B5/02007 , A61B5/02158 , A61M25/09 , A61B2560/0223 , A61B2562/0247 , A61M2025/0004
Abstract: Sensor delivery devices and methods of measuring Fractional Flow Reserve in a patient are disclosed. One sensor delivery device includes a distal sleeve, a proximal portion, and a pressure sensor. The distal sleeve is configured to be advanced through a patient's vasculature over a guidewire. The pressure sensor is located on the distal sleeve or the proximal portion. The pressure sensor is adapted to generate a signal proportional to fluid pressure. The pressure sensor includes a material having a low thermal coefficient of pressure.
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公开(公告)号：US20160007837A1
公开(公告)日：2016-01-14
申请号：US14329554
申请日：2014-07-11
Applicant: ACIST MEDICAL SYSTEMS, INC.
Inventor： Jason F. Hiltner , Kendall R. Waters , Thomas C. Moore
IPC: A61B1/015 , A61B1/00 , A61B1/313 , A61B8/00 , A61B5/02 , A61B8/12 , A61M5/00 , A61B8/08 , A61B5/00 , A61B5/107
Abstract: This disclosure provides systems and methods for intravascular imaging. Some systems may be configured to generate a screening image of a section of a patient's vessel, identify one or more sub-sections of the screening image that each include a diagnostically significant characteristic of the vessel, and imaging the one or more sub-sections. Some systems may be configured to automatically identify the one or more sub-sections and/or to allow a user to manually identify the one or more sub-sections. Some systems may be configured to automatically image the one or more sub-sections after the one or more sub-sections are identified. In some examples, the system may be configured to displace blood during imaging of the sub-sections to enhance image quality. The system may be configured to minimize the period of time blood is displaced by synchronizing imaging and blood displacement.
Abstract translation: 本公开提供了用于血管内成像的系统和方法。 一些系统可以被配置为产生患者血管的一部分的筛选图像，识别筛选图像的一个或多个子部分，每个子部分包括血管的诊断上显着的特征，以及对该一个或多个子部分进行成像。 一些系统可以被配置为自动识别一个或多个子部分和/或允许用户手动识别一个或多个子部分。 一些系统可以被配置为在识别出一个或多个子部分之后自动成像一个或多个子部分。 在一些示例中，系统可以被配置为在子部分成像期间移位血液以增强图像质量。 该系统可以被配置为通过同步成像和血液置换来最小化血液被置换的时间段。
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公开(公告)号：US11109836B2
公开(公告)日：2021-09-07
申请号：US15406083
申请日：2017-01-13
Applicant: ACIST MEDICAL SYSTEMS, INC.
Inventor： Jason F. Hiltner , Kendall R. Waters , Thomas C. Moore , Robert Zelenka
Abstract: Embodiments of the present invention allow more full characterization of a stenotic lesion by measuring both pressure drop across the stenotic lesion and the size of the vessel lumen adjacent the stenotic lesion, both with sensors delivered intravascularly to the stenotic lesion site. In preferred embodiments, the size (e.g., inner diameter, cross-sectional profile) of the vessel lumen adjacent the stenotic lesion can be measured via one or more intravascular ultrasound transducers. In preferred embodiments, the intravascular ultrasound transducer(s) can be delivered to the site of the stenotic lesion with the same delivery device that carries the pressure transducer(s).
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公开(公告)号：US10779796B2
公开(公告)日：2020-09-22
申请号：US15629988
申请日：2017-06-22
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner , Robert F. Wilson , Sidney D. Nystrom
Abstract: An intravascular imaging system can include a catheter, a position sensor, and an intravascular imaging engine for receiving information from the catheter and the position sensor. The position sensor can include a reference element and a movable element, which can have a movable element position that is correlated to the position of an imaging transducer in the catheter. The relative position between the movable element and a reference element can be determined and can correspond to the relative movement of the transducer within a patient's vasculature. The imaging engine can receive position information from the position sensor and image information from the catheter and generate a display using the received information. Because relative movement of the transducer can be determined, spatial relationships between sets of imaging data can be determined, and image data from multiple transducer locations can be combined into one image.
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公开(公告)号：US20190175032A1
公开(公告)日：2019-06-13
申请号：US16275433
申请日：2019-02-14
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner
IPC: A61B5/0215 , A61M25/09 , A61B5/02
Abstract: Sensor delivery devices and methods of measuring Fractional Flow Reserve in a patient are disclosed. One sensor delivery device includes a distal sleeve, a proximal portion, and a pressure sensor. The distal sleeve is configured to be advanced through a patient's vasculature over a guidewire. The pressure sensor is located on the distal sleeve or the proximal portion. The pressure sensor is adapted to generate a signal proportional to fluid pressure. The pressure sensor includes a material having a low thermal coefficient of pressure.
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Patent Agency Ranking
公开(公告)号：US09241641B2
公开(公告)日：2016-01-26
申请号：US13828452
申请日：2013-03-14
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner , Simon Furnish , James Lamar Gray, II , William K. Dierking , Alan Evans
IPC: A61B5/0215 , A61B5/00
CPC classification number: A61B5/0084 , A61B5/02152 , A61B5/02154 , A61B5/6851 , A61B5/6852 , A61B2562/0247 , A61B2562/0266
Abstract: Methods and sensor delivery devices for monitoring a fluid pressure within a vascular structure, the devices including an elongated sheath sized for sliding along a guidewire, a sensor assembly including a fiber optic sensor, a housing surrounding the sensor, a first cavity between the distal end of the sensor and a distal aperture of the housing, a filler extending from at least the distal end of the housing distally and tapering inward toward the outer surface of the sheath, a second cavity in the filler with an opening at the outer surface of the filler and adjoining the distal aperture of the housing, and an optical fiber. The sensor delivery device may also include an outer layer that partially covers the second cavity with an aperture over the opening of the second cavity.
Abstract translation: 用于监测血管结构内的流体压力的方法和传感器传送装置，所述装置包括尺寸适于沿着导丝滑动的细长护套，包括光纤传感器的传感器组件，围绕传感器的壳体，远端 所述传感器和所述壳体的远端孔口，填充物从所述壳体的至少远端向远侧延伸并朝向所述护套的外表面向内逐渐变细，所述填料中的第二腔在所述壳体的外表面处具有开口 填充物并且邻接壳体的远端孔，以及光纤。 传感器传送装置还可以包括用第二腔的开口部分地覆盖第二腔的外层。
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公开(公告)号：US20150351645A1
公开(公告)日：2015-12-10
申请号：US14300654
申请日：2014-06-10
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner
IPC: A61B5/0215 , A61M25/09 , A61B5/02
CPC classification number: A61B5/02158 , A61B2560/0223 , A61B2562/0247
Abstract: Methods of measuring Fractional Flow Reserve (FFR) including advancing a sensor delivery device within a guiding catheter to a location of interest, the sensor delivery device comprising a distal sleeve including a distal sensor and a proximal sensor, advancing only a distal portion of the distal sleeve outside of the guiding catheter such that the distal sensor is outside of the guiding catheter and downstream of the location of interest and the proximal sensor is inside of the guiding catheter, measuring a distal fluid pressure with the distal sensor distal to the location of interest, measuring a reference fluid pressure with the proximal sensor inside of the guiding catheter, and calculating FFR. One or both of the proximal and distal sensor may be comprised of a material having a low thermal coefficient.
Abstract translation: 测量分数流量储备（FFR）的方法，包括将引导导管内的传感器输送装置推进到感兴趣的位置，所述传感器输送装置包括远端套筒，所述远端套筒包括远侧传感器和近侧传感器，仅推进远端的远端部分 套管在引导导管的外部，使得远端传感器位于引导导管的外部并且在感兴趣的位置的下游，并且近侧传感器位于引导导管的内部，测量与远端传感器远离感兴趣位置的远端流体压力 测量引导导管内部的近端传感器的参考流体压力，并计算FFR。 近端和远端传感器中的一个或两个可以由具有低热系数的材料构成。
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公开(公告)号：US10675003B2
公开(公告)日：2020-06-09
申请号：US14329554
申请日：2014-07-11
Applicant: ACIST MEDICAL SYSTEMS, INC.
Inventor： Jason F. Hiltner , Kendall R. Waters , Thomas C. Moore
Abstract: This disclosure provides systems and methods for intravascular imaging. Some systems may be configured to generate a screening image of a section of a patient's vessel, identify one or more sub-sections of the screening image that each include a diagnostically significant characteristic of the vessel, and imaging the one or more sub-sections. Some systems may be configured to automatically identify the one or more sub-sections and/or to allow a user to manually identify the one or more sub-sections. Some systems may be configured to automatically image the one or more sub-sections after the one or more sub-sections are identified. In some examples, the system may be configured to displace blood during imaging of the sub-sections to enhance image quality. The system may be configured to minimize the period of time blood is displaced by synchronizing imaging and blood displacement.
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公开(公告)号：US10244951B2
公开(公告)日：2019-04-02
申请号：US14300654
申请日：2014-06-10
Applicant: ACIST Medical Systems, Inc.
Inventor： Jason F. Hiltner
IPC: A61B5/02 , A61M25/00 , A61M25/09 , A61B5/0215
Abstract: Methods of measuring Fractional Flow Reserve (FFR) including advancing a sensor delivery device within a guiding catheter to a location of interest, the sensor delivery device comprising a distal sleeve including a distal sensor and a proximal sensor, advancing only a distal portion of the distal sleeve outside of the guiding catheter such that the distal sensor is outside of the guiding catheter and downstream of the location of interest and the proximal sensor is inside of the guiding catheter, measuring a distal fluid pressure with the distal sensor distal to the location of interest, measuring a reference fluid pressure with the proximal sensor inside of the guiding catheter, and calculating FFR. One or both of the proximal and distal sensor may be comprised of a material having a low thermal coefficient.
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公开(公告)号：US20170143305A1
公开(公告)日：2017-05-25
申请号：US15406083
申请日：2017-01-13
Applicant: ACIST MEDICAL SYSTEMS, INC.
Inventor： Jason F. Hiltner , Kendall R. Waters , Thomas C. Moore , Robert Zelenka
CPC classification number: A61B8/4416 , A61B5/0215 , A61B5/02154 , A61B5/02158 , A61B5/0261 , A61B5/1076 , A61B5/6851 , A61B8/06 , A61B8/12 , A61B8/445 , A61B8/4483 , A61B8/4494 , A61B2562/06
Abstract: Embodiments of the present invention allow more full characterization of a stenotic lesion by measuring both pressure drop across the stenotic lesion and the size of the vessel lumen adjacent the stenotic lesion, both with sensors delivered intravascularly to the stenotic lesion site. In preferred embodiments, the size (e.g., inner diameter, cross-sectional profile) of the vessel lumen adjacent the stenotic lesion can be measured via one or more intravascular ultrasound transducers. In preferred embodiments, the intravascular ultrasound transducer(s) can be delivered to the site of the stenotic lesion with the same delivery device that carries the pressure transducer(s).
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