Positioning device for nuclear magnetic resonance imaging

Abstract

The utility model belongs to the field of medical instruments, in particular to a positioning device for nuclear magnetic resonance imaging, which is applied to nuclear magnetic resonance flat scanning and comprises a bearing layer, a plurality of longitudinal positioning lines and transverse positioning lines are arranged on the surface of the top of the bearing layer, and positioning holes are formed in intersection points of the longitudinal positioning lines and the transverse positioning lines; the positioning balls are mounted in the positioning holes through medical adhesive, and the interiors of the positioning balls are hollow; the adhesive layer is arranged below the bearing layer, and the positioning balls penetrate through the adhesive layer. According to the utility model, through the mutual cooperation of the positioning ball, the bearing layer, the adhesive layer and other structures, a plurality of uniformly distributed point-like artifacts, specifically white bright spots, can be generated on a nuclear magnetic resonance image by utilizing secondary imaging, and a certain part of a patient can be accurately measured by utilizing the unit length between the adjacent white bright spots; therefore, subsequent puncture positioning is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a positioning device for magnetic resonance imaging. Background Art

[0002] The basic principle of MRI is to place the human body in a special magnetic field and use radio frequency pulses to excite hydrogen nuclei within the body, causing them to resonate and absorb energy. After the radio frequency pulses cease, the hydrogen nuclei emit radio signals at a specific frequency and release the absorbed energy, which is detected by external receivers and processed by computers to produce images. MRI has significant potential advantages in disease diagnosis. It can directly produce tomographic images in cross-sectional, sagittal, coronal, and various oblique planes, without the artifacts seen in CT scans, requiring no contrast agent injection, generating no ionizing radiation, and having no adverse effects on the body. MRI is highly effective in detecting common brain diseases such as intracerebral and extracerebral hematomas, brain tumors, intracranial aneurysms, arteriovenous malformations, cerebral ischemia, intraspinal tumors, syringomyelia, and hydromyelia. It is also effective in diagnosing conditions such as lumbar disc herniation and primary liver cancer.

[0003] In existing technologies, there are no precise positioning markers on the patient's body during MRI examinations, and medical staff cannot accurately restore the position and size information of the patient's body. They cannot accurately determine the location of the puncture point, the direction of needle insertion, and the depth before puncture, which can easily cause deviations in subsequent puncture biopsy. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A positioning device for nuclear magnetic resonance imaging, used for nuclear magnetic resonance plain scan, comprising:

[0007] A bearing layer, wherein a top surface of the bearing layer is provided with a plurality of longitudinal positioning lines and transverse positioning lines, and positioning holes are provided at the intersections of the longitudinal positioning lines and the transverse positioning lines;

[0008] A positioning ball, which is installed in the positioning hole by medical glue, and the interior of the positioning ball is set to be hollow;

[0009] An adhesive layer, wherein the adhesive layer is disposed below the bearing layer, and the positioning balls are arranged through the adhesive layer;

[0010] A protective film is provided on the outer surface of the adhesive layer.

[0011] Based on the above technical solution, its use principle and the technical effects produced are as follows:

[0012] When auxiliary positioning is needed, first tear off the protective film, and use the adhesive layer to stick the supporting layer and the positioning ball to the patient's scanning part. Since there is a hollow cavity inside the positioning ball and the interior is air, secondary imaging can produce multiple evenly arranged point artifacts, specifically white bright spots. By using the unit length between adjacent white bright spots, a certain part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning.

[0013] In a preferred example, the present invention can be further configured as follows: the supporting layer is made of non-woven fabric.

[0014] In a preferred example, the present invention can be further configured as follows: the material of the positioning ball is set to be plastic.

[0015] In a preferred example, the present invention can be further configured as follows: the positioning ball is shaped as a sphere, and the diameter of the positioning ball is 4-5 mm.

[0016] In a preferred example, the present invention can be further configured as follows: the positioning ball is shaped as an ellipsoid, and the long diameter of the positioning ball is 4-5 mm, and the short diameter is 2-4 mm.

[0017] In a preferred example, the present invention can be further configured as follows: the adhesive layer is made of medical adhesive.

[0018] In a preferred example, the present invention can be further configured as follows: the positioning ball is arranged to penetrate the protective film.

[0019] In a preferred example, the present invention can be further configured as follows: adjacent longitudinal positioning lines or adjacent transverse positioning lines are spaced at least one unit length apart.

[0020] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0021] A fixed connection is a connection in which parts or components are fixed without any relative movement. There are two types of connections: detachable and non-detachable.

[0022] (1) A removable connection is a method of fastening components together using screws, splines, wedge pins, etc. This type of connection allows for disassembly during maintenance without damaging the components. However, the connectors used must be of the correct specifications (e.g., length of bolts, keys, wedge pins) and properly tightened.

[0023] (2) Non-detachable connections mainly refer to welding, riveting and tenoning. Since they need to be disassembled by forging, sawing or oxygen cutting when repairing or replacing, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to the quality of workmanship, technical inspection and remedial measures (such as calibration, polishing, etc.);

[0024] An active connection is a connection in which parts or components are fixed so that they can move relative to each other.

[0025] The above technical solution of the utility model has the following beneficial technical effects:

[0026] In the present invention, through the mutual cooperation of the positioning ball, the supporting layer, the adhesive layer and other structures, secondary imaging can be used to generate multiple evenly arranged point artifacts on the magnetic resonance image, specifically white bright spots. By using the unit length between adjacent white bright spots, a certain part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional schematic diagram of the overall structure of Example 1 of the present utility model;

[0028] Figure 2 This is a cross-sectional schematic diagram of the overall structure of Example 1 of the present utility model;

[0029] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the second embodiment of the present utility model.

[0030] Reference numerals:

[0031] 1. Bearing layer; 2. Longitudinal positioning line; 3. Horizontal positioning line; 4. Positioning hole; 5. Positioning ball; 6. Adhesive layer; 7. Protective film; 8. Medical adhesive; 9. Hollow cavity. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure. It should be noted that the embodiments of the present utility model and the features in the embodiments can be combined with each other in the absence of conflict.

[0033] Example 1:

[0034] According to the concept of this application, Figures 1 to 2An embodiment of a positioning device for nuclear magnetic resonance imaging used in nuclear magnetic resonance imaging will be described below. Specifically, the positioning device for nuclear magnetic resonance imaging is constructed as an integrated structure, comprising four components: a carrier layer 1, a positioning ball 5, an adhesive layer 6, and a protective film 7. Through the coordination of the positioning ball 5, the carrier layer 1, the adhesive layer 6, and other structures, secondary imaging can be used to produce multiple evenly distributed point-like artifacts, specifically white bright spots, on the nuclear magnetic resonance image. Using the unit length between adjacent white bright spots, a specific part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning.

[0035] Combine Figure 1-2 As shown, the present invention provides a positioning device for nuclear magnetic resonance imaging, which is applied to nuclear magnetic resonance plain scan, comprising:

[0036] The carrier layer 1 has a plurality of longitudinal positioning lines 2 and transverse positioning lines 3 on its top surface, and positioning holes 4 are formed at the intersections of the longitudinal positioning lines 2 and the transverse positioning lines 3;

[0037] The positioning ball 5 is installed in the positioning hole 4 through the medical glue 8, and the interior of the positioning ball 5 is set to be hollow;

[0038] The adhesive layer 6 is provided below the supporting layer 1, and the positioning balls 5 are arranged through the adhesive layer 6;

[0039] The protective film 7 is arranged on the outer surface of the adhesive layer 6 .

[0040] According to the technical solution of this embodiment, the bearing layer 1 is made of non-woven fabric, and the bearing layer 1 can provide support for the positioning ball 5.

[0041] Nuclear magnetic resonance is the process by which non-zero spin atomic nuclei absorb electromagnetic waves of a specific frequency under the influence of an external magnetic field and undergo energy level transitions. Non-zero spin atomic nuclei have magnetic moments, and their spin energy levels undergo Zeeman splitting under the influence of an external magnetic field. Nuclear magnetic resonance spectroscopy is a branch of spectroscopy, and its resonance frequency is in the radio frequency band.

[0042] Application of Magnetic Resonance Magnetic resonance imaging (MRI) has become a common imaging examination method. As a new imaging examination technology, MRI will not affect human health.

[0043] According to the technical solution of this embodiment, the material of the positioning ball 5 is set to plastic. When performing nuclear magnetic resonance detection, since a hollow cavity 9 is provided inside the positioning ball 5, which is filled with air, and since the density of the positioning ball 5 is greater than the density of human tissue, the positioning ball 5 can be imaged using the principle of secondary refraction. During MRI imaging, the hollow structure will form secondary refraction, thereby generating multiple evenly arranged point artifacts, specifically white bright spots. By using the unit length between adjacent white bright spots, a certain part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning.

[0044] According to the technical solution of this embodiment, the shape of the positioning ball 5 is set to be spherical, and the diameter of the positioning ball 5 is 4-5 mm.

[0045] According to the technical solution of this embodiment, the adhesive layer 6 is made of medical glue 8, the protective film 7 is made of a thin film material, the positioning ball 5 is arranged through the protective film 7, and the protective film 7 is used to protect the adhesive layer 6.

[0046] There is at least one unit length between adjacent longitudinal positioning lines 2 or adjacent transverse positioning lines 3. This embodiment does not limit this. The unit length between the longitudinal positioning lines 2 or the transverse positioning lines 3 can be adjusted according to actual needs. The unit length is also not limited here and can be selected according to actual needs. For example, one unit length is 1CM.

[0047] It should be noted that the size of the MRI positioning device is not limited here and can be cut according to specific parts.

[0048] Specifically, when auxiliary positioning is required, the protective film 7 is first torn off, and the supporting layer 1 and the positioning ball 5 are pasted to the scanning part of the patient using the adhesive layer 6. Since the positioning ball 5 is provided with a hollow cavity 9 inside, which is filled with air, secondary imaging can generate multiple evenly distributed point artifacts, specifically white bright spots. By using the unit length between adjacent white bright spots, a certain part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning.

[0049] The following further describes a positioning device for magnetic resonance imaging provided by the present invention in conjunction with the accompanying drawings and embodiments.

[0050] A positioning device for magnetic resonance imaging, comprising:

[0051] The carrier layer 1 has a plurality of longitudinal positioning lines 2 and transverse positioning lines 3 on its top surface, and positioning holes 4 are formed at the intersections of the longitudinal positioning lines 2 and the transverse positioning lines 3;

[0052] The positioning ball 5 is installed in the positioning hole 4 through the medical glue 8, and the interior of the positioning ball 5 is set to be hollow;

[0053] The adhesive layer 6 is provided below the supporting layer 1, and the positioning balls 5 are arranged through the adhesive layer 6;

[0054] The protective film 7 is arranged on the outer surface of the adhesive layer 6 .

[0055] Example 2:

[0056] Combine Figure 3 As shown, the fundamental difference between Example 2 and Example 1 is that the shape of the positioning ball 5 is set to be an ellipsoidal sphere, and the long diameter of the positioning ball 5 is 4-5mm, and the short diameter is 2-4mm. The ellipsoidal positioning ball 5 is easier to fix in the positioning hole 4 than the spherical one.

[0057] The working principle and usage process of the present invention are as follows: when auxiliary positioning is required, the protective film 7 is first torn off, and the supporting layer 1 and the positioning ball 5 are pasted to the scanning part of the patient using the adhesive layer 6. Since the positioning ball 5 is provided with a hollow cavity 9 inside, which is filled with air, secondary imaging can generate multiple evenly arranged point-like artifacts, specifically white bright spots. By using the unit length between adjacent white bright spots, a certain part of the patient can be accurately measured, thereby facilitating subsequent puncture positioning.

[0058] In the present invention, the term "plurality" refers to two or more than two, unless otherwise expressly defined. The term "and / or" used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "installation", "connection", "connection", and "fixed" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0059] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0060] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A positioning device for nuclear magnetic resonance imaging, used for nuclear magnetic resonance plain scan, characterized in that: include: A bearing layer (1), wherein a top surface of the bearing layer (1) is provided with a plurality of longitudinal positioning lines (2) and transverse positioning lines (3), and a positioning hole (4) is provided at the intersection of the longitudinal positioning lines (2) and the transverse positioning lines (3); A positioning ball (5), the positioning ball (5) is installed in the positioning hole (4) through medical glue (8), and the interior of the positioning ball (5) is configured to be hollow; An adhesive layer (6), wherein the adhesive layer (6) is arranged below the bearing layer (1), and the positioning balls (5) are arranged through the adhesive layer (6); A protective film (7) is provided on the outer surface of the adhesive layer (6).

2. The positioning device for magnetic resonance imaging according to claim 1, characterized in that: The supporting layer (1) is made of non-woven fabric.

3. The positioning device for magnetic resonance imaging according to claim 2, characterized in that: The material of the positioning ball (5) is set to plastic.

4. The positioning device for magnetic resonance imaging according to claim 3, characterized in that: The shape of the positioning ball (5) is set to be spherical, and the diameter of the positioning ball (5) is 4-5 mm.

5. The positioning device for magnetic resonance imaging according to claim 3, characterized in that: The shape of the positioning ball (5) is set to be an ellipsoidal sphere, and the long diameter of the positioning ball (5) is 4-5 mm, and the short diameter is 2-4 mm.

6. The positioning device for magnetic resonance imaging according to claim 5, characterized in that: The adhesive layer (6) is made of medical adhesive (8).

7. The positioning device for magnetic resonance imaging according to claim 1, characterized in that: The positioning ball (5) is arranged through the protective film (7).

8. The positioning device for magnetic resonance imaging according to claim 7, characterized in that: Adjacent longitudinal positioning lines (2) or adjacent transverse positioning lines (3) are spaced at least one unit length apart.

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