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公开(公告)号：US06885801B1
公开(公告)日：2005-04-26
申请号：US10313976
申请日：2002-12-06
申请人： Subbakrishna Shankar , David Rohler
发明人： Subbakrishna Shankar , David Rohler
CPC分类号： G06T5/006 , G06T5/10 , G06T2207/20056 , G06T2207/20064
摘要： An image processing enhancement system for receiving a fiber based image. The characteristics of fiber bundle are used to image process an image which has come through the fiber bundle. Those characteristics may be obtained from individual calibration, or simply from a knowledge of the fiber bundle's likely characteristics. One aspect determines the positions of fiber pixels, and interpolates between those fiber pixels.
摘要翻译： 一种用于接收基于光纤的图像的图像处理增强系统。 纤维束的特征用于对通过纤维束的图像进行图像处理。 这些特征可以从单独校准获得，或者仅仅从纤维束的可能特征的知识中获得。 一个方面确定光纤像素的位置，并在这些光纤像素之间插值。
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公开(公告)号：US11090006B2
公开(公告)日：2021-08-17
申请号：US15424261
申请日：2017-02-03
IPC分类号： A61B5/00 , A61B5/02 , A61B5/0215
摘要： A sensing guidewire device used to measure physiological parameters within a living body. In one embodiment, the device is used to measure the fractional flow reserve (FFR) across a stenotic lesion in a patient's vasculature. The device includes a sensor that is adapted to be affixed near the distal end of a guidewire. The guidewire contains a corewire, processed to enclose electrical conductors in a sealed, off-centered interstice or channel, with an outer diameter approximate to the outer diameter of the device, running substantially the full length of the device, and has a homogenous outer surface. The enclosed eccentric channel provides space for electrical conductors to move freely. The corewire can have a tapered segment to create desirable flexibility. A solid connector comprised of alternating conductive and insulating elements for connecting the conductors to an external device is disclosed. The guidewire can be advanced through a patient's blood vessels, returning pressure measurements across vessel blockages that allow for accurate assessment of blockage severity and lead to better clinical outcomes.
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公开(公告)号：US20210338163A1
公开(公告)日：2021-11-04
申请号：US17372640
申请日：2021-07-12
IPC分类号： A61B5/00 , A61B5/0215 , A61B5/02
摘要： A sensing guidewire device used to measure physiological parameters within a living body. In one embodiment, the device is used to measure the fractional flow reserve (FFR) across a stenotic lesion in a patient's vasculature. The device includes a sensor that is adapted to be affixed near the distal end of a guidewire. The guidewire contains a corewire, processed to enclose electrical conductors in a sealed, off-centered interstice or channel, with an outer diameter approximate to the outer diameter of the device, running substantially the full length of the device, and has a homogenous outer surface. The enclosed eccentric channel provides space for electrical conductors to move freely. The corewire can have a tapered segment to create desirable flexibility. A solid connector comprised of alternating conductive and insulating elements for connecting the conductors to an external device is disclosed. The guidewire can be advanced through a patient's blood vessels, returning pressure measurements across vessel blockages that allow for accurate assessment of blockage severity and lead to better clinical outcomes.
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公开(公告)号：US20170215801A1
公开(公告)日：2017-08-03
申请号：US15424261
申请日：2017-02-03
IPC分类号： A61B5/00 , A61B5/0215
CPC分类号： A61B5/6851 , A61B5/02007 , A61B5/0215 , A61B2560/0443 , A61B2562/12 , A61B2562/22
摘要： A sensing guidewire device used to measure physiological parameters within a living body. In one embodiment, the device is used to measure the fractional flow reserve (FFR) across a stenotic lesion in a patient's vasculature. The device includes a sensor that is adapted to be affixed near the distal end of a guidewire. The guidewire contains a corewire, processed to enclose electrical conductors in a sealed, off-centered interstice or channel, with an outer diameter approximate to the outer diameter of the device, running substantially the full length of the device, and has a homogenous outer surface. The enclosed eccentric channel provides space for electrical conductors to move freely. The corewire can have a tapered segment to create desirable flexibility. A solid connector comprised of alternating conductive and insulating elements for connecting the conductors to an external device is disclosed. The guidewire can be advanced through a patient's blood vessels, returning pressure measurements across vessel blockages that allow for accurate assessment of blockage severity and lead to better clinical outcomes.
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