CN210301002U - Weight bearing position magnetic resonance imaging device - Google Patents
Weight bearing position magnetic resonance imaging device Download PDFInfo
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- CN210301002U CN210301002U CN201920345439.6U CN201920345439U CN210301002U CN 210301002 U CN210301002 U CN 210301002U CN 201920345439 U CN201920345439 U CN 201920345439U CN 210301002 U CN210301002 U CN 210301002U
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Abstract
The utility model discloses a heavy burden position magnetic resonance imaging device, it includes: a base body having a notch portion; the two poles of the permanent magnet are oppositely arranged on the notch part, and a main magnetic field with the axis parallel to the horizontal plane can be formed in the notch part; and the detection table is used for arranging a detected object and can move relative to the base body, so that the detected object can enter and exit the main magnetic field from the notch part in a load bearing position. The utility model provides a heavy burden position magnetic resonance imaging device, it has open scanning environment for not only need not to examine in the confined environment by the test object, can carry out the magnetic resonance inspection with standing position, position of sitting moreover, objective reappearance human body is by actual physiology and pathology image science performance of test joint under the gesture of standing, improves the rate of accuracy that is judged by test joint department disease, thereby better be applied to clinically and scientific research.
Description
Technical Field
The utility model relates to a magnetic resonance imaging field, specific is a heavy burden position magnetic resonance imaging device.
Background
A Magnetic Resonance Imaging (MRI) system is a commonly used medical Imaging device, which is an Imaging technique that utilizes the phenomenon of nuclear Magnetic Resonance of hydrogen nuclei (protons) in human tissues after being excited by radio frequency pulses in a Magnetic field to generate Magnetic Resonance signals, and reconstructs an image of a certain layer of the human body through processing of an electronic computer. Conventional magnetic resonance imaging systems require that the patient must be positioned flat within the cylindrical magnet during examination of the patient. In this posture, the joints of the human body are naturally relaxed, and the parts of the knee and the ankle joint which are required for the examination of the load bearing position are in a slightly outward-rotated posture and have no stress.
The invention patent application publication No. CN108209920A discloses a mechanical compression device for magnetic resonance imaging of knee joint in a human body lying position, which performs compression tests on different mechanical compression conditions on the sole of a tested object to obtain the imaging performance of the knee joint on each tissue for disease diagnosis of the tested object. However, the application range is limited to the knee joint, and a plurality of mechanisms and devices are needed to simulate the natural weight bearing position of the patient, so that the use is complicated, and it is difficult to truly and objectively reproduce the actual state of each joint of the human body in the natural weight bearing position (the physiological state of each joint of the human body in a natural standing and sitting state), thereby affecting the accuracy of disease judgment of the joint to be tested.
Therefore, the above problems need to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a heavy burden position magnetic resonance imaging device, it can make the subject under the heavy burden position of nature carry out the magnetic resonance inspection.
The embodiment of the application discloses: a weight bearing magnetic resonance imaging apparatus, comprising:
a base body having a notch portion;
the two poles of the permanent magnet are oppositely arranged on the notch part, and a main magnetic field with the axis parallel to the horizontal plane can be formed in the notch part;
and the detection table is used for arranging the object to be detected and can move relative to the base body, so that the object to be detected can enter and exit the main magnetic field from the notch part at a natural load position.
Further, the notch portion penetrates the base body in the vertical direction.
Further, when the detection table is located in the main magnetic field, an accommodating space for accommodating a leg of the object to be detected in a sitting posture state is formed between the detection table and at least one pole of the permanent magnet.
Further, the detection table comprises a table top for placing a detected object and a driving mechanism, wherein the driving mechanism comprises a first driving unit connected with the table top and used for driving the table top to move along the vertical direction, and a second driving unit connected with the first driving unit and used for driving the first driving unit to move along the horizontal direction.
Furthermore, the weight position magnetic resonance imaging device also comprises a coil rack for bearing the radio frequency receiving coil, and the coil rack is arranged between two poles of the permanent magnet.
Further, the coil former is disposed near one of the two poles of the permanent magnet, and when the radio frequency receiving coil is placed on the coil former, the radio frequency receiving coil is coaxial with the main magnetic field.
Further, the weight position magnetic resonance imaging device also comprises a bracket for supporting and raising the substrate.
Further, the magnetic resonance imaging device with the weight bearing position also comprises a power amplifier and a spectrometer.
Further, the magnetic resonance imaging device with the weight position also comprises a gradient coil.
Furthermore, the detection table is provided with a standing station for detecting that the detected object is in a standing posture and/or a sitting station for detecting that the detected object is in a sitting posture.
The utility model has the advantages as follows:
the utility model provides a heavy burden position magnetic resonance imaging device, it has semi-open scanning environment for not only need not to examine in the confined environment by the test object, can carry out the magnetic resonance inspection with standing position, position of sitting moreover, objective human body by test joint actual physiology and pathology image science performance under the gesture of standing improve the rate of accuracy that is judged by test joint department disease, thereby better be applied to clinical and scientific research.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of an embodiment of the present invention;
fig. 2 is a sectional structure diagram of the embodiment of the invention;
reference numerals of the above figures: 1. a substrate; 2. a permanent magnet; 3. a detection table; 31. a table top; 32. a drive mechanism; 321. a first drive unit; 322. a second driving unit; 4. a support; 5. a coil former.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, a weight bearing mri apparatus includes: a base body 1, wherein the base body 1 is provided with a notch part; the two poles of the permanent magnet 2 are oppositely arranged on the notch part, and a main magnetic field with the axis parallel to the horizontal plane can be formed in the notch part; and the detection table 3 is used for arranging a detected object, and the detection table 3 can move relative to the base body 1, so that the detected object can enter and exit the main magnetic field from the notch part in a load bearing position.
With the above structure, the weight-bearing magnetic resonance imaging apparatus provided by this embodiment has an open scanning environment, and the subject does not need to be examined in a closed environment, and the patient can complete nuclear resonance scanning of the lumbar vertebrae, the hip joints, the knee joints, and the like in a standing posture in a natural state. Because the natural weight bearing position can represent the physiological state of each joint of the human body under the natural posture, the weight bearing position magnetic resonance imaging device can objectively reproduce the physiological and pathological imaging performance of the tested joint of the human body under the actual state under the standing posture, and improve the accuracy of disease judgment of the tested joint, thereby being better applied to the aspects of clinic and scientific research.
Specifically, the notch portion may penetrate through the base 1 in a vertical direction, for example, in some alternative embodiments, the base 1 may be shaped like a "C", a "U", or the like, so that the detection table 3 and the subject can conveniently enter and exit the main magnetic field.
The detection table can complete the action of entering and exiting the main magnetic field through a manual adjusting mechanism or an automatic/semi-automatic adjusting mechanism provided with an electric driving mechanism. For example, in a preferred embodiment, the inspection table 3 may include a table top 31 for placing an object to be inspected, and a driving mechanism 32, wherein the driving mechanism 32 includes a first driving unit 321 connected to the table top 31 and configured to drive the table top 31 to move in a vertical direction, and a second driving unit 322 connected to the first driving unit 321 and configured to drive the first driving unit 321 to move in a horizontal direction. On one hand, the height of the test platform 3 is adjusted by the first driving unit 321 to match the height position of the test platform 3 under different postures of the tested object; on the other hand, the second driving unit 322 adjusts the horizontal position of the inspection table 3, and the position of the object to be inspected can be finely adjusted by cooperating with the first driving unit 321, so as to achieve the optimal scanning position, and the inspection table 3 can be separated from the gap before and after the inspection, so that the object to be inspected can conveniently go up and down the inspection table 3 or adjust the posture and the like.
Further, the first driving unit 321 may be a scissor lift as shown in fig. 1 and 2. Of course, in other alternative embodiments, the first driving unit 321 may also be a rail-type lifting platform. The second driving unit 322 may be a sliding table, and the second driving unit 322 may be a sliding block disposed at the bottom of the first driving unit 321, and a sliding groove disposed below the first driving unit 321 and capable of accommodating the sliding block. Of course, in other alternative embodiments, the second driving unit 322 may also be a roller mechanism or the like. That is, many mechanisms capable of implementing the functions of the first driving unit 321 and the second driving unit 322 are already available in the prior art, and detailed description and specific limitations thereof are not repeated herein.
For the convenience of operation, the magnetic resonance imaging apparatus may further include a support 4 for supporting and raising the base 1 so that the base 1 and the permanent magnet 2 are at a proper height to match the height of the subject, etc.
When the detection table 3 is located in the main magnetic field, an accommodating space for accommodating the leg of the object to be detected in a sitting posture is formed between the detection table 3 and at least one pole of the permanent magnet 2. The magnetic resonance scanning of the cervical vertebra, the shoulder joint, the elbow joint and other parts can be completed by the tested object in a sitting posture. That is, the test table 3 may have a standing position where the subject is in a standing posture for testing and/or a sitting position where the subject is in a sitting posture for testing.
When different detection positions of a detected object are detected, different types of radio frequency receiving coils are often needed, and in order to facilitate the placement and switching of the different radio frequency receiving coils, the weight position magnetic resonance imaging device can further comprise a coil rack 5 for bearing the radio frequency receiving coils, wherein the coil rack 5 is arranged between two poles of the permanent magnet 2.
In a preferred embodiment, the coil former 5 is arranged close to one of the two poles of the permanent magnet 2, on which the radio frequency receiving coil is placed, which is coaxial with the main magnetic field. The height and the horizontal position of the detection table 3 are adjusted in a matched mode, so that the detected area of the detected object is located in an area where the magnetic field uniformity of the center of the main magnetic field meets the standard, and the quality of the detected image is improved.
In addition, the magnetic resonance imaging apparatus with a negative weight position provided by the embodiment further includes a power amplifier and a spectrometer. And a gradient coil arranged on the end face of the permanent magnet 2 and used for forming a gradient magnetic field can be further included. Shim coils arranged circumferentially of the permanent magnets 2 may also be included.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A weight bearing magnetic resonance imaging apparatus, comprising:
a base body having a notch portion;
the two poles of the permanent magnet are oppositely arranged on the notch part, and a main magnetic field with the axis parallel to the horizontal plane can be formed in the notch part;
and the detection table is used for arranging the object to be detected and can move relative to the base body, so that the object to be detected can enter and exit the main magnetic field from the notch part at a natural load position.
2. The weight-bearing magnetic resonance imaging apparatus according to claim 1, wherein the notch portion penetrates the base in a vertical direction.
3. The apparatus according to claim 1, wherein a receiving space for receiving the leg of the subject in a sitting position exists between the test table and at least one pole of the permanent magnet when the test table is located in the main magnetic field.
4. The weight-bearing magnetic resonance imaging apparatus according to claim 1, wherein the examination table comprises a table top for placing the object to be examined and a driving mechanism, the driving mechanism comprising a first driving unit connected with the table top and used for driving the table top to move in a vertical direction, and a second driving unit connected with the first driving unit and used for driving the first driving unit to move in a horizontal direction.
5. The weight-bearing magnetic resonance imaging apparatus according to claim 1, further comprising a coil bobbin for bearing a radio frequency receiving coil, the coil bobbin being disposed between two poles of the permanent magnet.
6. The weight bearing magnetic resonance imaging apparatus according to claim 5, wherein the coil former is disposed near one of two poles of the permanent magnet, on which the radio frequency receive coil is disposed, the radio frequency receive coil being coaxial with the main magnetic field.
7. The weight-bearing magnetic resonance imaging apparatus according to claim 1, further comprising a support for supporting and elevating the base.
8. The weight-bearing magnetic resonance imaging apparatus according to claim 1, further comprising a power amplifier and a spectrometer.
9. The weight-bearing magnetic resonance imaging apparatus according to claim 1, wherein the weight-bearing magnetic resonance imaging apparatus further comprises a gradient coil.
10. The weight-bearing magnetic resonance imaging device according to claim 1, wherein the test table has a standing position for testing the subject in a standing posture and/or a sitting position for testing the subject in a sitting posture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345439.6U CN210301002U (en) | 2019-03-18 | 2019-03-18 | Weight bearing position magnetic resonance imaging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920345439.6U CN210301002U (en) | 2019-03-18 | 2019-03-18 | Weight bearing position magnetic resonance imaging device |
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| CN210301002U true CN210301002U (en) | 2020-04-14 |
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| CN201920345439.6U Active CN210301002U (en) | 2019-03-18 | 2019-03-18 | Weight bearing position magnetic resonance imaging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113180635A (en) * | 2021-04-28 | 2021-07-30 | 中国科学院精密测量科学与技术创新研究院 | Head magnetic resonance imaging device and method for full-posture human body |
| EP4014855A1 (en) * | 2020-12-18 | 2022-06-22 | Siemens Healthcare GmbH | Magnetic resonance device comprising a patient supporting device |
-
2019
- 2019-03-18 CN CN201920345439.6U patent/CN210301002U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4014855A1 (en) * | 2020-12-18 | 2022-06-22 | Siemens Healthcare GmbH | Magnetic resonance device comprising a patient supporting device |
| US11786181B2 (en) | 2020-12-18 | 2023-10-17 | Siemens Healthcare Gmbh | Magnetic resonance apparatus with a patient positioning apparatus |
| CN113180635A (en) * | 2021-04-28 | 2021-07-30 | 中国科学院精密测量科学与技术创新研究院 | Head magnetic resonance imaging device and method for full-posture human body |
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