CN213963364U - Unilateral magnetic resonance imaging system with micro-stepping device - Google Patents

Abstract

The utility model discloses a unilateral magnetic resonance imaging system with a micro-stepping device, a main upright post is vertically arranged on the ground, a stepping motor I is arranged on the main upright post, and a transverse track is arranged on the stepping motor I in a way of being vertical to the main upright post; the stepping motor II is arranged on the transverse track, and the probe track is vertical to the transverse track and is vertically arranged on the stepping motor II; the unilateral magnet detector is arranged at the bottom end of the probe track; the single-side magnet detector can firstly move in a large range by arranging the large-range stepping motor I and the micro-stepping motor II, and then can adjust in a small range according to the actual specific position of the region to be detected.

Description

Unilateral magnetic resonance imaging system with micro-stepping device

Technical Field

The utility model relates to the technical field of mechanical equipment, especially, relate to a unilateral magnetic resonance imaging system with little step device.

Background

In recent years, the unilateral nuclear magnetic resonance technology is widely applied to the fields of food analysis and quality control, material science, geophysical and the like, has an open structure, a small volume and convenience in movement, can perform nondestructive detection on an object from any angle at any position, and meanwhile, the permanent magnet is adopted to provide a main magnetic field, so that the unilateral nuclear magnetic resonance technology is low in price and energy consumption, and can provide a plurality of information including relaxation time T1, T2 imaging, diffusion coefficient D, even chemical shift and the like given by the traditional nuclear magnetic resonance technology, so that the unilateral magnetic resonance technology has a wide application prospect in realizing shallow imaging for a unilateral magnet configuration corresponding imaging system.

The existing unilateral magnetic resonance technology provides a possible mode of full-open magnetic resonance imaging, but has the problems of huge power consumption of an electromagnetic magnet and overhigh use cost; on the other hand, the single-sided open magnetic resonance using the permanent magnet cannot provide a complex shimming space applicable to a real medical environment, so that an imaging region is small, volume imaging cannot be formed, and the structure is too complex, which is not favorable for equipment popularization and cost control.

At present, a magnetic resonance imaging system which has a simple structure, can accurately, quickly and conveniently image all parts of a human body and can be used for imaging skin, subcutaneous structures, superficial organs or superficial subcutaneous lesions of the human body is clinically lacked.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, develop a unilateral magnetic resonance imaging system with little step device, this unilateral magnetic resonance imaging system can be applied to human each position formation of image, can be used to human skin and subcutaneous structure, superficial sexual organ or superficial subcutaneous pathological change formation of image again, still can be used to intervention operation or surgical operation under the magnetic resonance guide, has effectively improved accuracy, rapidity, the convenience that magnetic resonance imaging system formed images to human each position.

The utility model provides a technical problem's technical scheme does: the embodiment of the utility model provides a unilateral magnetic resonance imaging system with little step device, including head tree, transverse rail, probe track, step motor I, step motor II, unilateral magnet detector, the head tree is vertical to be set up subaerial, step motor I is on the head tree, and can reciprocate along the head tree, and transverse rail is perpendicular to head tree level and sets up on step motor I, and transverse rail can move about along the horizontal direction, also can reciprocate along with step motor I simultaneously; the probe track is vertically arranged on the stepping motor II and can move up and down along the vertical direction and move left and right along with the stepping motor II; the unilateral magnet detector is arranged at the bottom end of the probe track.

Preferably, the unilateral magnet detector is fixedly connected with the bottom of the probe track and can move along with the probe track.

Preferably, the single-side magnetic resonance imaging system further comprises an examination table, and the examination table is fixed on the ground.

Preferably, the examination table is arranged below the unilateral magnet detector.

As optimization, the unilateral magnetic resonance imaging system further comprises a gradient coil, and the gradient coil is arranged below the bed plate of the examination bed.

Preferably, a thin layer scanning area is formed between the single-side magnet detector and the examination bed.

The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and the above technical solution has the following advantages or advantageous effects:

through setting up stepping motor I of stepping device on a large scale, step motor II of little stepping device, make unilateral magnet detector can carry out the motion on a large scale earlier, carry out the regulation of minim scope according to the actual concrete position that waits to detect the region again, simple structure can be applied to each position formation of image of human body, can be used to human skin and subcutaneous structure again, superficial sexual organ or superficial subcutaneous lesion formation of image, still can be used to intervention operation or surgery operation under the magnetic resonance guide, the accuracy, the rapidity, the convenience that magnetic resonance imaging system formed images to each position of human body have been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure, 1 is a unilateral magnetic detector, 2 is a main upright post, 3 is a transverse track, 4 is a stepping motor I, 5 is a stepping motor II, 6 is a probe track, 7 is an examination bed, 8 is a gradient coil, and 9 is a thin layer scanning area.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily limit the invention. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in the figure, the unilateral magnetic resonance imaging system with the micro-stepping device comprises a main upright post 2, a transverse track 3, a probe track 6, a stepping motor I4, a stepping motor II 5 and a unilateral magnet detector 1, wherein the main upright post 2 is vertically arranged on the ground, the stepping motor I4 is arranged on the main upright post 2 and can move up and down along the main upright post 2, the transverse track 3 is horizontally arranged on the stepping motor I4 and is vertical to the main upright post 2, and the transverse track 3 can move left and right along the horizontal direction and can also move up and down along with the stepping motor I4; the stepping motor II 5 is arranged on the transverse track 3 and can move left and right along the transverse track 3, the probe track 6 is vertically arranged on the stepping motor II 5 and is perpendicular to the transverse track 3, and the probe track 6 can move up and down along the vertical direction and can move left and right along with the stepping motor II 5; the unilateral magnet detector 1 is arranged at the bottom end of the probe track 6. The stepping motor I4 is a large-range stepping device, and the stepping motor II 5 is a micro-stepping device.

The unilateral magnet detector 1 is fixedly connected with the bottom of the probe track 6 and can move along with the probe track 6.

The unilateral magnetic resonance imaging system also comprises an examination bed 7, and the examination bed 7 is fixed on the ground.

The examination couch 7 is below the single-sided magnet detector 1.

The unilateral magnetic resonance imaging system also comprises a gradient coil 8, and the gradient coil 8 is arranged below a bed plate of the examination bed 7.

A thin layer scanning area 9 is formed between the single-side magnet detector 1 and the examination bed 7.

When the system is used, a patient lies on the examination table 7, firstly, the patient moves up and down along the vertical direction of the main upright post 2 by controlling the stepping motor I4 arranged on the main upright post 2, so that the unilateral magnet detector 1 moves in a large range in the vertical direction, and meanwhile, the transverse track 3 arranged on the stepping motor I4 is adjusted to move left and right, and an imaging area is basically aligned to the part of the human body to be examined.

Secondly, the unilateral magnet detector 1 is accurately aligned to the part to be detected by controlling the movement of the stepping motor II 5 in the left-right direction of the transverse track 3 and adjusting the probe track 6 arranged on the stepping motor II 5 to move up and down.

A thin layer scanning area 9 positioned outside the probe is formed between the unilateral magnet detector 1 and the part to be detected, a gradient magnetic field is formed by a gradient field coil 8 for space encoding, and the signal is transmitted by a radio frequency coil system and is received to generate an image.

After the generation of a thin-layer magnetic resonance image of a part to be detected is completed, the stepping motor II 5 drives the unilateral magnet detector 1 to move downwards along with the probe track 6 by the distance of the thickness of an imaging thin-layer uniform static magnetic field (in order to meet the data acquisition requirement of integral imaging, two adjacent uniform static magnetic field areas on the upper side and the lower side are partially overlapped), and the imaging of the next thin layer is performed.

After different layered images of the examined part are acquired in a multi-step mode, a computer workstation forms an integral magnetic resonance volume image of the examined part.

The unilateral magnetic resonance imaging system with the micro-stepping device can be arranged above a human body, and the position of the unilateral magnet detector 1 is adjusted in a vertical direction in a micro-stepping mode through the stepping motor II 5, so that the unilateral magnetic resonance imaging system can step downwards step gradually from the uppermost layer of a part to be detected, and can also step upwards step gradually from the lowermost layer of the part to be detected to form thin-layer images layer by layer, and finally the whole volume image of the part to be detected is obtained; the device can also be arranged on the side or below the human body, and the stepping motor II 5 can be used for micro-stepping up and down in the horizontal direction, the left and right direction or the vertical direction to adjust the position of the unilateral magnet detector 1; and gradually stepping, and forming a thin layer image layer by layer to finally obtain the whole volume image of the detected part.

Although the above description has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and on the basis of the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative efforts are still within the scope of the present invention.

Claims (6)

1. The utility model provides a unilateral magnetic resonance imaging system with little step device, includes head mast (2), horizontal track (3), probe track (6), step motor I (4), step motor II (5), unilateral magnet detector (1), head mast (2) are vertical to be set up subaerial, characterized by: the stepping motor I (4) is arranged on the main upright post (2) and can move up and down along the main upright post (2), the transverse track (3) is vertical to the main upright post (2) and is horizontally arranged on the stepping motor I (4), and the transverse track (3) can move left and right along the horizontal direction and can also move up and down along with the stepping motor I (4); the probe track (6) is vertically arranged on the stepping motor II (5) in a direction perpendicular to the transverse track (3), and the probe track (6) can vertically move up and down and can also move left and right along with the stepping motor II (5); the unilateral magnet detector (1) is arranged at the bottom end of the probe track (6).

2. A single-sided magnetic resonance imaging system with a microstepping device as set forth in claim 1, wherein: the unilateral magnet detector (1) is fixedly connected with the bottom of the probe track (6) and can move along with the probe track (6).

3. A single-sided magnetic resonance imaging system with a microstepping device as set forth in claim 1, wherein: the unilateral magnetic resonance imaging system also comprises an examination bed (7), and the examination bed (7) is fixed on the ground.

4. A single-sided magnetic resonance imaging system with a microstepping device as set forth in claim 3, characterized in that: the examination bed (7) is arranged below the unilateral magnet detector (1).

5. A single-sided magnetic resonance imaging system with a microstepping device as set forth in claim 1, wherein: the unilateral magnetic resonance imaging system further comprises a gradient coil (8), and the gradient coil (8) is arranged below the bed plate of the examination bed (7).

6. A single-sided magnetic resonance imaging system with a microstepping device as set forth in claim 1, wherein: a thin layer scanning area (9) is formed between the unilateral magnet detector (1) and the examination bed (7).

Images