Methods, devices and systems for sensing, measuring and/or characterizing changes in compliance and/or elasticity of blood vessels and/or lesions during vascular procedures
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A kind of vascular surgery and blood vessel technology, applied in the direction of surgery, grinding scalpel, surgical cutting instruments, etc., can solve the problem of unsatisfied quantification of lesion compliance
Active Publication Date: 2021-07-13
CARDIOVASCULAR SYST INC
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[0028] Despite the known capabilities in these fields, there are still unanswered questions in quantifying the compliance of a subject's conduit or the compliance of a lesion within a conduit (e.g., blood vessel) at a specific location (e.g., a site of blockage). need to be satisfied
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[0158] Example #1: Real-time monitoring of arterial compliance during grinding with each beat of the heart.
[0159] Magnets are embedded in the crown. The AC magnetic field sensor is arranged outside the body in a plane substantially perpendicular to the spin axis of the crown as previously described. Figure 21 is an example of data obtained from an exemplary milled crown on an atherectomy device with magnets embedded in it and spinning in the canal while being monitored by 3 sensors. With each rotation / spin of the crown, the estimate of the position of the crown is updated 3 times, once for each sensor. Figure 21 Data points in represent estimates of crown positions. Connected data points 2102 are position estimates from the last 7 revolutions / rotation / spins of the crown used to generate the data. This example illustrates that the crown has not fully completed the trajectory of the conduit (eg, blood vessel) in 7 revolutions of rotation. It is also apparent that the di...
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Abstract
The present system relates, in various embodiments, to methods, devices and systems for sensing, measuring and evaluating compliance in body ducts. In other embodiments, the methods, devices and systems sense, measure, determine, display and / or interpret compliance in a body tract and / or in a lesion within a body tract. In all embodiments, sensing, measuring, determining, displaying and / or interpreting may take place before, during and / or after a procedure performed within a body duct. Exemplary conduits include blood vessels, and exemplary procedures include vascular procedures such as atherectomy, angioplasty, stenting, and / or biovascular stenting.
Description
[0001] inventor [0002] Victor L. Schoenle, U.S. citizen, residing in Greenfield, Minnesota [0003] Thomas B. Hoegh, U.S. citizen, residing in Edina, Minnesota [0004] Bruce J. Persson, U.S. citizen, residing in Mill Harbor, Minnesota [0005] Kayla Eichers, U.S. citizen, residing in Minneapolis, Minnesota [0006] Matthew Tilstra, U.S. citizen, living in Rogers, Minnesota [0007] Richard C. Mattison, U.S. citizen, living in Zimmerman, Minnesota [0008] Joseph P. Higgins, U.S. citizen, residing in Minnetonka, Minnesota [0009] Michael J. Grace, U.S. citizen, residing in Brooklyn Park, Minnesota [0010] Matthew Saterbak, U.S. citizen, living in Robbinsdale, Minnesota [0011] Matthew D. Cambronne, U.S. citizen, residing in Mozville, Minnesota [0012] Robert E. Kohler, U.S. citizen, resident of Lake Elmo, Minnesota [0013] Cross References to Related Applications [0014] This application is the result of application serial number 14 / 315,774, filed June 26, 2014,...
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