Magnetic resonance auxiliary shimming eyeshade

Abstract

The utility model discloses a magnetic resonance auxiliary shimming eyeshade which comprises an eyeshade frame, balls are filled in the eyeshade frame, two sides of the eyeshade frame are respectively and rotatably connected with glasses legs through rotating shafts, the interiors of the glasses legs are hollow, and first arc-shaped limiting blocks are uniformly arranged at the bottoms of the glasses legs at intervals. Second arc-shaped limiting blocks are evenly arranged at the top ends of the glasses legs at intervals, first arc-shaped abutting rods are arranged between the first arc-shaped limiting blocks in a sliding mode, second arc-shaped abutting rods are arranged between the second arc-shaped limiting blocks in a sliding mode, and elastic blocks are arranged between the first arc-shaped abutting rods and the second arc-shaped abutting rods in an abutting mode; the first arc-shaped abutting rod and the second arc-shaped abutting rod penetrate through the glasses legs and are connected with extension glasses legs. The small glass beads with the diameter of 2 mm are filled in the eyeshade, the eyeshade has good physical stability and chemical inertness and is easy to clean, disinfect and store for a long time, the glass beads serve as auxiliary shimming devices, the magnetic resonance imaging quality of eye sockets can be improved conveniently, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic resonance examination, specifically to a magnetic resonance auxiliary shimming eyecup. BACKGROUND

[0002] Orbital magnetic resonance imaging (MRI) is the best noninvasive examination method for displaying, diagnosing and evaluating orbital tumors and tumor-like lesions, wherein T2WI-fs sequence and diffusion-weighted imaging (DWI) play a prominent role in lesion diagnosis and differential diagnosis. However, it is easily affected by the susceptibility difference caused by surrounding gas-containing cavities such as maxillary sinus, nasal sinus and ethmoid sinus, resulting in T2WI-fs sequence algorithm error and DWI sequence serious distortion, thereby reducing the accuracy of diagnosis.

[0003] Research reports that rice and flour as auxiliary shimming device contents can improve the magnetic field uniformity of irregular structure parts and improve local image quality. However, as a kind of grain food, it is easy to absorb moisture in the environment and become moldy, affecting its use effect and period. At the same time, the increase of moisture causes the T2 value to become longer, which shows high signal in T2WI and DWI, affecting the overall image quality. Moreover, the traditional shimming eyecup cannot adjust the length of the mirror foot according to the ear-eye distance of the person being examined.

[0004] Therefore, in view of this problem, a magnetic resonance auxiliary shimming eyecup is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of magnetic resonance auxiliary shimming eyecup, the utility model is filled with small glass bead with 2mm diameter in eyecup, with good physical stability and chemical inertness, and it is easy to clean and disinfect and long-term preservation, glass bead as auxiliary shimming device is convenient to improve orbital magnetic resonance imaging quality, improve the detection rate of orbital disease.

[0006] According to the distance between the ears and eyes of the person being examined, the mirror foot can be directly stretched and elongated, then the first arc-shaped abutment rod is slidably arranged between the first arc-shaped limiting blocks, the second arc-shaped abutment rod is slidably arranged between the second arc-shaped limiting blocks, the distance of the stretched and elongated mirror foot can be stretched and elongated as needed, then the hanging ring is hung on the ear, and the entire eyecup can be stably fixed on the eye of the patient. The utility model is simple and convenient to operate, and has high practicality.

[0007] The utility model is realized as follows:

[0008] A kind of magnetic resonance auxiliary shimming eyecup, including eyecup frame, in the eyecup frame is filled with ball,

[0009] The beads are glass beads, and the diameter of the beads is 2mm.

[0010] The mirror foot is internally hollow, first arc-shaped limiting blocks are uniformly arranged at the bottom of the mirror foot, second arc-shaped limiting blocks are uniformly arranged at the top end of the mirror foot, a first arc-shaped abutting rod is slidably arranged between the first arc-shaped limiting blocks, a second arc-shaped abutting rod is slidably arranged between the second arc-shaped limiting blocks, and an elastic block is arranged in abutment between the first arc-shaped abutting rod and the second arc-shaped abutting rod.

[0011] The first arc-shaped abutting rod and the second arc-shaped abutting rod are connected with an elongated mirror foot.

[0012] Further, a hanging ring is connected to the tail end of the elongated mirror foot.

[0013] Further, an arc-shaped groove is arranged at the lower bottom of the eyeshade frame, and a nose bridge supporting block is arranged on the groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are that: by filling small glass beads with a diameter of 2mm in the eyeshade, good physical stability and chemical inertia are achieved, and the eyeshade is easy to clean, disinfect and store for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced to the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope.

[0016] Figure 1 It is the structure schematic diagram of the device of the utility model.

[0017] Figure 2 is a local structure schematic view of the utility model;

[0018] Figure 3 is a T2WI-fs image contrast chart before and after using the utility model eye shield;

[0019] Figure 4 is an orbital DWI image contrast chart before and after using the utility model eye shield;

[0020] Among them, the eye shield frame 1, the ball 11, the nose bridge supporting block 12, the mirror leg 2, the second arc-shaped limiting block 21, the first arc-shaped limiting block 22, the elongated mirror leg 23, the first arc-shaped abutment rod 3, the second arc-shaped abutment rod 31, the elastic block 4, the hanging ring 5. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 A magnetic resonance auxiliary field uniforming eye shield, comprising an eye shield frame 1, the eye shield frame 1 is filled with ball 11,

[0023] The ball 11 is a glass bead, and the diameter of the ball 11 is 2mm.

[0024] The mirror foot 2 is internally hollow, first arc-shaped limiting blocks 22 are uniformly arranged at the bottom of the mirror foot 2, second arc-shaped limiting blocks 21 are uniformly arranged at the top end of the mirror foot 2, a first arc-shaped abutting rod 3 is slidably arranged between the first arc-shaped limiting blocks 22, a second arc-shaped abutting rod 31 is slidably arranged between the second arc-shaped limiting blocks 21, and an elastic block 4 is abuttingly arranged between the first arc-shaped abutting rod 3 and the second arc-shaped abutting rod 31; the elastic block 4 is made of silica gel material.

[0025] The first arc-shaped abutting rod 3 and the second arc-shaped abutting rod 31 are connected with an elongated mirror foot 23.

[0026] In the embodiment, the tail end of the elongated mirror foot 23 is connected with a hanging ring 5; the hanging ring 5 is hung on the ear of the person to be examined, and the whole eyeshade device is fixed above the eyes of the person to be examined.

[0027] In the embodiment, as shown in Figure 3 , the T2WI image of the eye socket. 3A, before using the auxiliary shimming device, 3B, after using the auxiliary shimming device. 3A shows that the image of the nasal root is missing, and the signal is uneven, 3B shows that the image of the nasal root is complete, and the signal is uniform. At the level of the optic nerve, the signal of the middle turbinate, nasal septum, lens and medial rectus muscle is obviously improved,

[0028] In the embodiment, as shown in Figure 4 , the DWI image of the eye socket. 4A, before using the auxiliary shimming device, 4B, after using the auxiliary shimming device. 4A shows that the eyeball, lens and nasal root are not deformed, and the image noise is large, 4B shows that the eyeball, lens and nasal root are not deformed, and the image noise is small.

[0029] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A magnetic resonance assisted shimming eye mask, characterized by: The utility model relates to an eyeshade frame (1) is filled with ball (11) in, both sides of eyeshade frame (1) are respectively connected with glasses leg (2) through pivot rotation, the inside of glasses leg (2) is hollow, the bottom of glasses leg is evenly provided with first arc limit block (22), the top of glasses leg is evenly provided with second arc limit block (21), first arc limit block (22) between sliding first arc abutment rod (3) are equipped with, second arc limit block (21) between sliding second arc abutment rod (31) are equipped with, first arc abutment rod (3) and second arc abutment rod (31) between abutment are equipped with elastic block (4), first arc abutment rod (3) and second arc abutment rod (31) are connected with the elongated glasses leg (23) through glasses leg (2).

2. A magnetic resonance assisted shim eye mask according to claim 1, wherein, The ball (11) is a glass bead, and the diameter of the ball is 2mm.

3. The magnetic resonance (MR) compatible shimming eye mask of claim 1, wherein, The elongated glasses leg (23) is connected with a ring (5) at the tail end.

4. The magnetic resonance (MR) compatible shimming eye mask of claim 1, wherein, The elastic block (4) is made of silica gel.

5. The magnetic resonance (MR) compatible shimming eye mask of claim 1, wherein, An arc-shaped groove is arranged at the lower bottom of the eyeshade frame (1), and a nose bridge supporting block (12) is arranged on the groove.

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