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A method and system for detecting force on the front end of an interventional device based on X-ray images

A detection method and detection system technology, applied in the direction of instruments, measuring forces, measuring devices, etc., can solve the problems of inaccurate and convenient detection methods, and achieve the effect of low cost and easy implementation.

Active Publication Date: 2022-03-18
BEIHANG UNIV
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Problems solved by technology

[0005] In view of this, the present invention provides a method and system for detecting force on the front end of an interventional device based on an X-ray image. The X-ray image of the interventional device is used to analyze the force on the front end of the interventional device, which solves the problem of the detection of the front end of the existing interventional device. The method is not accurate enough and convenient

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  • A method and system for detecting force on the front end of an interventional device based on X-ray images
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  • A method and system for detecting force on the front end of an interventional device based on X-ray images

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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] On the one hand, see attached figure 1 , the embodiment of the present invention discloses a method for detecting force on the front end of an interventional device based on X-ray images, the method comprising:

[0040] S1: Predetermine the elastic modulus of the front end of the interventional device.

[0041] The front end of the interventional device will produce bending deformation after being stressed. The bending deformation of the front end of t...

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Abstract

The invention discloses a method and system for detecting force on the front end of an interventional device based on an X-ray image. The method includes predetermining the elastic modulus of the front end of the interventional device; Initial curvature radius; obtain the X-ray image of the front end of the interventional device after contact with the vessel wall, and calculate the current curvature radius; obtain the force on the front end of the interventional device according to the elastic modulus, initial curvature radius, and current curvature radius. The X-ray image of the interventional device during the operation is used to analyze the force on the front end of the interventional device, so that the force on the front end of the interventional device before and after contact with the blood vessel wall can be directly measured, and then accurate force information can be obtained, which can be judged by doctors or vascular interventional robots The contact state between the interventional device and the blood vessel wall provides accurate and reliable data support, and the method does not need to change the structure of the existing interventional device, which is lower in cost and easy to implement.

Description

technical field [0001] The invention relates to the technical field of image processing and mechanical analysis of surgical instruments, and more specifically relates to a method and system for detecting force on the front end of an interventional instrument based on X-ray images. Background technique [0002] At present, in vascular interventional surgery, the force on the front end of the interventional device plays a very important role in judging the contact state of the device with the vessel wall or lesion. The traditional force analysis of the front end of the device is generally done manually, requiring the doctor to judge the contact state between the front end of the device and the vessel wall by sensing the push resistance of the device with the fingers when manually pushing the device at the rear end. In order to accurately measure the pushing force, a robot is used instead of a doctor to operate the catheter, and a force sensor is installed on the robot to quant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/02
CPCG01L1/25G01B15/04
Inventor 孟偲李宁
Owner BEIHANG UNIV
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