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High-pressure injection system used for computed tomography angiography

A high-pressure injection and tomography technology, applied in pressure infusion, hypodermic injection devices, control/regulation systems, etc., can solve problems such as multiple artifacts, affecting the accuracy of diagnosis, etc., to achieve less streak artifacts, improve quality, Effect of Contrast Media Attenuation Level Minimization

Inactive Publication Date: 2019-04-12
NANJING JUSHA DISPLAY TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-pressure injection system for computed tomography angiography, to solve the problem that more artifacts appear in scanned images and affect the accuracy of diagnosis

Method used

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  • High-pressure injection system used for computed tomography angiography
  • High-pressure injection system used for computed tomography angiography
  • High-pressure injection system used for computed tomography angiography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] see Figure 1~4 , in an embodiment of the present invention, a high-pressure injection system for computed tomography angiography, including a first injection syringe 1, a second injection syringe 6 and a first injection syringe 1 and a second injection syringe 6 The mounting frame body 16, the heads of the first injection syringe 1 and the second injection syringe 6 are connected to the heart through the same catheter, and the first injection syringe 1 and the second injection syringe 6 are fixed on the mounting frame body 16, the mounting frame body 16 is equipped with a power assembly that drives the injection of the first injection syringe 1 and the second injection syringe 6, and the power assembly includes the first injection motor 3, the second injection motor 5 and the rotating The first screw nut 9 and the second screw nut 10 arranged at the end of the mounting bracket body 16, the output shaft of the first injection motor 3 and the shaft section of the first s...

Embodiment 2

[0028] see Figure 5 , the embodiment of the present invention differs from Embodiment 1 in that: the high-pressure injection system further includes a control system for controlling the first control drive plate 2 and the second control drive plate 4, and the control system includes a setting unit 17. Determination unit 18 and output control unit 19, the setting unit 17 is used to pre-set the injection steps and injection data; the injection data includes injection volume, injection rate and injection time, and the determination unit 18 uses Determine and execute according to the scheme set by the setting unit 17; the output regulation unit 19 is used to adjust the rotation speed of the first regulation driving plate 2 and the second regulation driving plate 4 and The direction of rotation is regulated; the change of the rotation rate of the first regulation driving plate 2 and the second regulation driving plate 4 can make the speed of contrast agent and saline injection cha...

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Abstract

The invention discloses a high-pressure injection system used for computed tomography angiography, relates to the technical field of therapeutic equipment, and is mainly for solving the problem that scanned images include many has more artifacts which affect the accuracy of the diagnosis. The high-pressure injection system includes a first injection syringe, a second injection syringe and a mounting frame body used for mounting the first injection syringe and the second injection syringe, the heads of the first injection syringe and the second injection syringe are connected to the heart through the same catheter, the first injection syringe and the second injection syringe are fixed at one end of the mounting frame body, and the mounting frame body is provided with a power assembly for driving the first injection syringe and the second injection syringe. Compared with single-syringe contrast agent injection, the simultaneous injection of the dual injection syringes of the invention can minimize artifacts with appropriate contrast attenuation level while performing CT scanning so as to obtain high-quality images.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a high-pressure injection system for computed tomography angiography. Background technique [0002] The basic principle of CT imaging is to use X-ray beams to scan a layer of a certain thickness of the human body. The X-rays that pass through this layer are received by the detector and converted into visible light. The converter converts the digital signal into a computer for processing. The processing of image formation is like dividing the selected layer into several cuboids with the same volume, which are called voxels; the information obtained by scanning is calculated to obtain the X-ray attenuation coefficient or absorption coefficient of each voxel, and then arranged into a matrix, that is, a digital matrix .Digital matrix can be stored in disk or CD. Through the digital / analog converter, each number in the digital matrix is ​​converted into small squares with ...

Claims

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Application Information

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IPC IPC(8): A61M5/00A61M5/14A61M5/142A61M5/168
CPCA61M5/007A61M5/1408A61M5/14212A61M5/16827A61M5/16877A61M2205/3331A61M2210/125A61M2210/005
Inventor 张小元李燕
Owner NANJING JUSHA DISPLAY TECH
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