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MR shimming auxiliary device

A field assist and headrest technology is applied in the field of MR shimming assist devices to achieve the effects of ensuring comfort, improving fat suppression effect, and high device comfort

Pending Publication Date: 2020-09-11
WUXI NO 2 PEOPLES HOSPITAL
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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 solve the problem of chemical shift artifacts and magnetic susceptibility artifacts in the process of brachial plexus imaging examination using MR, and propose an MR shimming auxiliary device

Method used

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  • MR shimming auxiliary device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0064] An MR shimming auxiliary device in this embodiment, such as figure 1 , 2 As shown, its composition includes headrest mechanism 1, headrest adjustment mechanism 2, liner mechanism 3, left shoulder rest mechanism 4, right shoulder rest mechanism 5, silicone pad 6, thermoplastic diaphragm 7;

[0065] The liner mechanism 3 is a sheet-layer plate, and the liner mechanism 3 is used as the supporting part of the MR shimming auxiliary device. The left and right shoulder rest mechanisms 4 and 5 are respectively installed on the left and right sides of the upper end surface of the liner mechanism 3, and the left shoulder rest mechanism 4 and the right shoulder support mechanism 5 are arranged to slide left and right on the upper end surface of the liner mechanism 3; the headrest adjustment mechanism 2 is installed on the front part of the upper end surface of the liner mechanism 3, and the headrest adjustment mechanism 1 is installed at the end of the headrest adjustment mechanis...

specific Embodiment approach 2

[0068] The difference from Embodiment 1 is that an MR shimming auxiliary device in this embodiment, such as Figure 3-6 As shown, the headrest mechanism 1 includes a headrest 1a, 4 headrest steel balls 1b, 4 headrest springs 1c, and 4 headrest locking and fixing seats 1d;

[0069] A headrest pit 1a1 is provided at the upper middle position of the headrest 1a;

[0070] In the longitudinal direction inside the main body of the headrest 1a, two adjustment guide grooves 1a2 are symmetrically arranged on the left and right sides, and the upper and lower ends of each adjustment guide groove 1a2 are symmetrically provided with locking grooves 1a3, and the side walls of the locking grooves 1a3 are provided with threads ;

[0071] In each locking groove 1a3, the headrest spring 1c is set on the front end of the headrest lock fixing seat 1d, and the headrest steel ball 1b is connected to the front end of the headrest spring 1c; the headrest steel ball 1b, the headrest spring 1c, the he...

specific Embodiment approach 3

[0075] The difference from Embodiment 1 or Embodiment 2 is that an MR shimming auxiliary device in this embodiment, such as Figure 7-11 As shown, the left shoulder rest mechanism 4 includes a left shoulder rest base plate 4a, two shoulder rest brackets 4b, a set of handle bolts 4c, a left shoulder rest 4d, a thermoplastic connection block 4e, and a set of shoulder rest wedges 4f;

[0076] The left shoulder support base plate 4a is a sheet structure, located at the bottom of the left shoulder support mechanism 4, and the bottom of the left shoulder support base plate 4a is slidably connected with the lining plate mechanism 3;

[0077] The bottom of each shoulder support bracket 4b is installed on the left shoulder support base plate 4a, and a group of elongated hole structures are provided on the shoulder support support 4b; the top of the shoulder support support 4b is connected to the left shoulder support 4d;

[0078] The longitudinal section of the left shoulder rest 4d is...

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Abstract

The invention provides an MR shimming auxiliary device and belongs to the field of medical auxiliary instruments. On the basis of chemical shift artifacts and magnetic susceptibility artifacts in imaging examination of brachial plexus with MR, the MR shimming auxiliary device is characterized in that a left shoulder supporting mechanism (4) and a right shoulder supporting mechanism (5) are correspondingly installed on the left and right sides of the upper end face of a lining plate mechanism (3), and arranged on the upper end face of the lining plate mechanism (3) in a left and right sliding manner; the lining plate mechanism (3) is provided with a headrest adjusting mechanism (2), and a headrest mechanism (1) is installed at the tail end of the headrest adjusting mechanism (2); two ends of a thermoplastic film (7) are correspondingly fixed at the upper ends of the left shoulder mechanism (4) and the right shoulder mechanism (5), a cavity is formed between the thermoplastic film (7) and the upper end faces of the left shoulder mechanism (4) and the right shoulder mechanism (5), and the inner wall of the thermoplastic film (7) is lined with a silica gel pad (6). The device can assist MR to obtain accurate contrast results.

Description

technical field [0001] The invention relates to an MR shimming auxiliary device. Background technique [0002] The brachial plexus is the most complex peripheral nerve in the human body. It has a long journey and a superficial position, which is prone to injury and acute neuroinflammatory tumor lesions. MR is an important imaging method for the brachial plexus. Currently, two-dimensional sequences such as fat Inhibit T2W sequence, STIR sequence, DWI sequence, etc. However, the shape of the head and neck region is irregular, the surface curvature changes greatly, the magnetic field distribution is uneven, and the magnetic susceptibility of the tissue gap is large, resulting in obvious chemical shift artifacts and magnetic susceptibility artifacts in brachial plexus imaging, and the fat suppression effect is also unstable. , thus causing a large error and increasing the uncertainty of clinical diagnosis. [0003] At present, there is no mature solution in the market. Individ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055
Inventor 卞琳杰陈义钢巫丹萍
Owner WUXI NO 2 PEOPLES HOSPITAL
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