Lightweight low-field permanent magnet full-joint magnetic resonance imaging system
By combining a lightweight magnet, an integrated RF transmitter and gradient coil, and a fully digital fiber optic spectrometer, the problems of heavy weight, high cost, and poor image quality have been solved, achieving cost reduction and image quality improvement.
Patent Information
- Application Number
- CN202422991120.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing permanent magnet low-field magnetic resonance imaging systems are heavy, expensive, require little patient space, are susceptible to external interference, and have poor image quality.
The imaging system is composed of a lightweight magnet design, an integrated RF transmitter and gradient coil, a fully digital fiber optic spectrometer, and a support and coil.
It reduces the costs of magnet production, transportation, installation, and maintenance, increases patient space, and improves image quality and real-time imaging.
Smart Images
Figure CN223799766U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of magnetic resonance imaging, specifically to a light-weight low-field permanent magnet whole joint magnetic resonance imaging system. BACKGROUND
[0002] Magnetic resonance imaging (MRI) system is a commonly used medical imaging device, that is, using hydrogen nuclei (protons) in human tissues to accept radio frequency pulse excitation in a magnetic field to produce nuclear magnetic resonance phenomenon, generate magnetic resonance signals, and reconstruct human body image of a layer through electronic computer processing imaging technology.
[0003] The existing permanent magnet low-field magnetic resonance imaging system: the weight of the magnet is about dozens of tons, the production, transportation, installation and maintenance costs are very high, resulting in high sales cost, high hospital examination cost and increasing the economic burden of patients; in the case of separation of the radio frequency transmitting coil and the gradient coil, the patient space is small, reducing the patient comfort; the single-channel analog signal of the spectrometer is easily disturbed by the outside world, resulting in low signal and poor image quality. INVENTION CONTENTS
[0004] The utility model aims at providing a light-weight low-field permanent magnet whole joint magnetic resonance imaging system to solve the problems in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a light-weight low-field permanent magnet whole joint magnetic resonance imaging system, comprising a support and a coil, the support top is installed with a magnet, the coil is located in the magnet interior, and the coil constitutes an imaging area.
[0006] Preferably, it further comprises a hospital bed, and the coil is fixed on the hospital bed.
[0007] Preferably, the coil adopts one or more of a head imaging coil, an abdominal imaging coil, a motion joint imaging coil and the like.
[0008] Preferably, the top and bottom of the magnet are installed with a radio frequency transmitting gradient integrated coil.
[0009] Preferably, it further comprises a power amplifier and a spectrometer.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] 1. Light-weight magnet design: the light-weight magnet design makes the magnet weight the lightest in the world under the same conditions, reduces the magnet production cost, transportation cost, installation cost and operation and maintenance cost; at the same time, the magnetic resonance whole machine cost is reduced.
[0012] 2. Radio frequency gradient integrated coil: the radio frequency transmitting and gradient integrated coil makes the coil thickness smaller, and the patient space larger.
[0013] 3. Full digital fiber spectrum design: the spectrum designed with full digital fiber makes data acquisition faster, reduces signal and data distortion, improves image quality and enhances real-time imaging. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the principles of the present application, and should not be taken as limiting of the present application. In the drawings:
[0015] Figure 1 is a structural schematic diagram of head imaging of the present application;
[0016] Figure 2 is a structural schematic diagram of the present application Figure 1 from another perspective;
[0017] Figure 3 is a structural schematic diagram of abdominal imaging of the present application;
[0018] Figure 4 is a structural schematic diagram of joint imaging of the present application.
[0019] In the drawings: 1, support; 2, magnet; 3, coil; 4, RF transmit gradient integrated coil; 5, hospital bed. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.
[0021] Please refer to Figures 1-4The utility model discloses a kind of lightweight low-field permanent magnet whole joint magnetic resonance imaging systems, including support 1 and coil 3, the support 1 top is equipped with magnet 2, the coil 3 is located in magnet 2 inside, imaging area is formed in the coil 3;The coil 3 adopts head imaging coil, abdominal imaging coil, motion joint imaging coil and the coil of one or more in kind. Magnet 2 opens in support open direction and keeps perpendicular;The magnet 2 is equipped with an imaging area, and the coil 3 is fixed in magnet 2, to constitute the imaging area;Magnet is designed with lightweight, so that magnet weight is lightest in the world under same condition, magnet production cost, transportation cost, installation cost, operation and maintenance cost reduce;While reducing the cost of magnetic resonance complete machine.
[0022] It further includes sickbed 5, and the coil 3 is fixed on the sickbed 5;Magnet 2 is equipped with a main magnetic field space, and the patient is scanned by moving sickbed 5 before and after, and the position is in the magnetic field center area.
[0023] The top and bottom of the magnet 2 are both equipped with radio frequency emission gradient integrated coil 4;Radio frequency emission and gradient integrated coil are used, so that the thickness of coil is smaller, and patient space is increased.
[0024] It further includes power amplifier and spectrometer;Spectrometer is designed with full digitalization optical fiber, so that data acquisition is faster, signal and data distortion degree reduces, image quality is improved, and real-time performance of imaging is improved.
[0025] The working principle of the utility model is: receiving coil is placed on sickbed;Patient is placed on sickbed in lying posture, and the scanned part is placed on receiving coil;The scanned area of patient is placed in imaging area, and magnetic resonance imaging is carried out.
[0026] Finally, it should be pointed out that: the above-mentioned only for preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.
Claims
1. A lightweight low-field permanent magnet whole-body magnetic resonance imaging system comprising a gantry (1) and a coil (3), characterized in that, The support (1) is provided with a magnet (2) at the top, and the coil (3) is located inside the magnet (2), and the imaging area is formed inside the coil (3).
2. The lightweight low-field permanent magnet whole-body magnetic resonance imaging system according to claim 1, characterized in that A hospital bed (5) is further included, and the coil (3) is fixed on the hospital bed (5).
3. The lightweight low-field permanent magnet whole-body magnetic resonance imaging system according to claim 1 or 2, characterized in that The coil (3) is one or more of a head imaging coil, an abdominal imaging coil and a motion joint imaging coil.
4. The lightweight low-field permanent magnet whole-body magnetic resonance imaging system of claim 1, wherein, The top and bottom of the magnet (2) are provided with a radio frequency transmission gradient integrated coil (4).
5. The lightweight low-field permanent magnet whole-body MRI system of claim 1, wherein, A power amplifier and a spectrometer are further included.