Supporting device for super-flexible radio frequency coil in magnetic resonance imaging
By using a sponge pad, suction cup device, and auxiliary support system in the ultra-flexible radiofrequency coil, the problem of fixing the ultra-flexible radiofrequency coil in the limb joint system is solved, achieving higher imaging quality and patient comfort, and improving the success rate of examination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-03-31
AI Technical Summary
Existing ultra-flexible radiofrequency coils are unstable when fixed in the joint system of the limbs, making it difficult to ensure that the center is aligned with the examination site, resulting in low imaging quality and efficiency. Furthermore, the lack of support devices causes patient pain and movement during the examination.
The ultra-flexible RF coil is fixed with a solid sponge pad and suction cup device, and a support system consisting of auxiliary devices such as a metal base, support rod and sponge body is used to ensure that the center of the coil is aligned with the scanning center and provide stable support.
It improves imaging quality and efficiency, enhances patient comfort, reduces pain and movement during the examination, and increases the success rate of the examination.
Smart Images
Figure CN224066981U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field, concretely relates to a kind of support device for super-soft radio frequency coil in magnetic resonance imaging. BACKGROUND
[0002] Radio frequency coil technology in magnetic resonance imaging (MRI) is one of the key technologies in its imaging process, and radio frequency coil plays a crucial role in nuclear magnetic resonance imaging equipment, which is an important device for transmitting and receiving radio frequency pulses. Radio frequency coil can emit radio frequency pulses to the human body, so that hydrogen nuclei in the human body produce nuclear magnetic resonance and absorb energy. After the radio frequency pulse stops, hydrogen nuclei emit electrical signals and release energy, and this information is received by the radio frequency coil, which is processed to obtain an image. Therefore, the performance of radio frequency coil directly affects the image signal-to-noise ratio, imaging quality and efficiency of magnetic resonance imaging equipment.
[0003] With the continuous progress of medical technology, the performance requirements of radio frequency coil are also getting higher and higher. Super-soft radio frequency coil is a new type of radio frequency coil technology developed in recent years. This radio frequency coil technology has improved the material and design, and has improved the defects of traditional radio frequency coil, such as heavy and unable to fold, making the coil more flexible and able to conform to the human body curve, reducing the patient's oppression and bondage. Because this radio frequency coil can conform to human tissue well, this mode greatly improves the image quality and has important application in the detection of diseases in the chest, heart, abdomen, and limb joints. In the application of chest, heart, and abdominal system, super-soft radio frequency coil is generally not folded, and the human body is used as support, which is convenient to use.
[0004] However, for its application in the limb joint system, such as knee joint, hand, wrist joint, elbow joint, etc., the super-soft radio frequency coil needs to be wrapped around the examination site. In the prior art, magic tape is arranged on the super-soft radio frequency coil to achieve the purpose of wrapping. Due to the distribution of radio frequency units inside the radio frequency coil, the flexibility of the coil has certain limitations, so it is not conducive to the fixation of the coil, and it is also difficult to ensure that the center of the radio frequency coil is consistent with the center of the examination site, and at the same time, it is easy to cause damage to the radio frequency coil. In addition, due to the lack of support device for super-soft radio frequency coil, most patients undergoing magnetic resonance imaging of limb joints are accompanied by different degrees of pain, and the lack of support device is also not conducive to the fixation of the scanning site of the patient, which leads to the movement of the patient during examination, and thus reduces the success rate of examination and affects the quality and efficiency of imaging.
[0005] At present, the radio frequency coil auxiliary device is used for coil fixation, which mainly places the radio frequency coil, is used for the scan of ankle joint, knee joint, and the fixing device is relatively heavy, is not easy to bend at will, and cannot adapt to different application scenes. Based on this, the utility model provides a kind of fixing support device for super-soft radio frequency coil in magnetic resonance imaging. Utility model content
[0006] In view of the deficiencies of the prior art, the utility model provides a kind of fixing support device for super-soft radio frequency coil in magnetic resonance imaging and adjusting device, to improve the comfort of patient nuclear magnetic examination, improve the resolution and definition of nuclear magnetic resonance equipment imaging, improve the examination success rate of nuclear magnetic resonance, to realize the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] On the one hand, a kind of fixing support device for super-soft radio frequency coil in magnetic resonance imaging is provided, including the following components:
[0008] Solid sponge pad;
[0009] Sucking disc type device;
[0010] Sucking disc device is used to fix the solid sponge pad above magnetic resonance imaging scanning bed;
[0011] Wherein, the super-soft radio frequency coil in magnetic resonance imaging is silk screen printing super-soft radio frequency coil.
[0012] Preferably, the middle of the solid sponge pad is provided with recess.
[0013] Preferably, the middle of the solid sponge pad is provided with protrusion.
[0014] Preferably, the support device further includes an auxiliary device.
[0015] Preferably, the auxiliary device includes base, support column and sponge body.
[0016] Preferably, the auxiliary device can adopt magic tape to fix the center of silk screen printing super-soft radio frequency coil, to ensure that the center of silk screen printing super-soft radio frequency coil is consistent with scanning center.
[0017] Preferably, the silk screen printing super-soft radio frequency coil is flexible printing four-channel radio frequency receiving coil.
[0018] Preferably, each channel radio frequency receiving coil of the silk screen printing super-soft radio frequency coil is composed of four capacitors in series.
[0019] Preferably, the four capacitors in series include three tuning capacitors and one matching capacitor.
[0020] Compared with the prior art, the utility model has the following beneficial effects:
[0021] (1) the utility model provides a kind of two different shapes of support device for silk screen printing ultra-soft radio frequency coil in magnetic resonance imaging, an arc-shaped support pad and a sponge pad with groove, can well support upper limb and lower limb's nuclear magnetic resonance ultra-soft radio frequency coil, greatly improve the quality and efficiency of imaging.
[0022] (2) the utility model provides an auxiliary device for silk screen printing ultra-soft radio frequency coil in magnetic resonance imaging, through the auxiliary device and magic tape, silk screen printing ultra-soft radio frequency coil is fixed in joint part, can ensure that the center of silk screen printing ultra-soft radio frequency coil is consistent with scanning center, which is very helpful for improving imaging stability and imaging effect. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 (A) is a flexible printed four-channel radio frequency receiving coil prototype provided in the embodiment;
[0024] Figure 1 (B) is a flexible printed single-channel radio frequency receiving coil circuit diagram provided in the embodiment;
[0025] Figure 1 (C) is a schematic diagram of using flexible printed four-channel radio frequency receiving coil to wind knee joint provided in the embodiment;
[0026] Figure 2 It is another support device for ultra-soft radio frequency coil in magnetic resonance imaging provided in the embodiment;
[0027] Figure 3 It is another support device for ultra-soft radio frequency coil in magnetic resonance imaging provided in the embodiment;
[0028] Figure 4 It is another auxiliary device for ultra-soft radio frequency coil in magnetic resonance imaging provided in the embodiment;
[0029] In the drawing, 1-metal base, 2-supporting rod, 21-upper supporting rod, 22-lower supporting rod, 3-fixing knob, 4-groove, 5-strip crossbeam, 6-sponge body, 7-metal sheet. DETAILED DESCRIPTION
[0030] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the range of protection of the utility model.
[0031] Embodiment 1
[0032] The super-soft radio frequency coil used in the magnetic resonance imaging in the embodiment is a silk screen printing super-soft radio frequency coil, as shown in Figure 1 (A) in the figure is a flexible printing four-channel radio frequency receiving coil prototype, as shown in Figure 1 (B) is a flexible printing single-channel radio frequency receiving coil circuit diagram, each channel radio frequency receiving coil is a capacitor with four capacitors in series, including three tuning capacitors Ct and a matching capacitor Cm, the coil is to deposit multiple layers of special conductive and silver particle ink on a highly flexible plastic film to realize the coil loop, and a printed capacitor is used to replace the traditional capacitor, and the capacitor presents a distributed form, as shown in Figure 1 (C) is a schematic diagram of winding the knee joint using the flexible printing four-channel radio frequency receiving coil, this form can improve the flexibility and reliability of the coil to a certain extent, and the four-channel radio frequency receiving coil can be wound at the joint, however, this implementation method limits the layout of the coil unit in the complex geometric radio frequency coil.
[0033] As shown in Figure 2 The embodiment provides a support device for a silk screen printing super-soft radio frequency coil in magnetic resonance imaging, and the support device comprises the following components: at least one suction disc device for fixing the support device of the super-soft radio frequency coil above a magnetic resonance imaging scanning bed, as shown in Figure 2 The support device is a solid sponge pad, the sponge pad is thin, the left and right sides are the same height, and a groove is arranged in the middle, used for supporting different human joint systems, and the center position is the lowest part of the groove and is used for supporting the super-soft radio frequency coil for the upper limb joint system in magnetic resonance imaging. As another embodiment of the support device of the super-soft radio frequency coil, as shown in Figure 3 The support device is a solid sponge pad, mainly suitable for supporting the super-soft radio frequency coil for the knee joint in magnetic resonance imaging, and different from the support device for the upper limb joint, since the knee joint in magnetic resonance imaging often needs a certain physiological bending degree, therefore, an arc-shaped support pad is designed in the embodiment, the sponge pad is gradually raised in the middle, and is used for supporting the super-soft radio frequency coil for the knee joint in nuclear magnetic resonance.
[0034] This embodiment provides two different shaped support devices for screen-printed ultra-flexible radio frequency coils in magnetic resonance imaging: an arc-shaped support pad and a grooved sponge pad. These devices effectively support the ultra-flexible radio frequency coils in the upper and lower limbs, significantly improving imaging quality and efficiency. Because sponge is used as the support device, it is patient-friendly and provides good comfort.
[0035] Example 2
[0036] like Figure 4 The diagram shown in this embodiment illustrates another auxiliary device for screen-printed ultra-flexible radio frequency coils in magnetic resonance imaging. Figure 4 As shown, in addition to the support device for the screen-printed ultra-flexible RF coil, it is also necessary to fix the screen-printed ultra-flexible RF coil. In this embodiment, a universal auxiliary structure is proposed. The auxiliary device is made of solid sponge and is an openable structure. The auxiliary device includes a metal base (1), a support rod (2), a metal sheet (7), and a sponge body (6). The metal sheet (7) has a certain elasticity. The sponge body is a high-density solid sponge. The high-density solid sponge (6) is placed on top of the metal sheet (7). The high-density sponge body (6) is bonded to the metal sheet (7) with epoxy resin glue. The support rod (2) includes an upper support rod (21) and a lower support rod (22). Both the upper support rod (21) and the lower support rod (22) are made of metal. The upper support rod (21) and the metal sheet (7) are connected together. The upper support rod (21) is nested within the lower support rod (22). The upper support rod (21) also includes a groove (4), within which several strip beams (5) are included. The lower support rod (22) also includes a metal fixing knob (3), which can be an external hexagonal bolt or stud. The upper support rod (21) can move up and down within the lower support rod (22). The metal fixing knob (3) is used to fix the upper support rod (21) at a predetermined position on the lower support rod (22). In this embodiment, both the upper support rod (21) and the lower support rod (22) are 10cm long, and the adjustable height range of the support rod (2) is 10cm-20cm. If the upper support rod (21) and the lower support rod (22) are set to 5cm, then the adjustable height range of the support rod (2) is 5cm-10cm. This is not a limitation. This auxiliary device can fix the knee joint. Using this auxiliary device according to Figure 1The middle (C) shows that the silk screen printing super flexible radio frequency coil is fixed on the knee joint, and the specific fixing process is as follows: first, the silk screen printing super flexible radio frequency coil is fixed on the inner side wall of the auxiliary device by using magic tape, then the human body to be detected is placed in the auxiliary device, and finally the opening of the auxiliary device is closed by using magic tape. This fixing device can fix the center of the silk screen printing super flexible radio frequency coil, ensure that the center of the silk screen printing super flexible radio frequency coil is consistent with the scanning center, has more application scenarios, including the silk screen printing super flexible radio frequency coil auxiliary fixing of knee joint, hand, wrist joint, elbow joint, thigh, lower leg, upper arm, forearm and the like. The above auxiliary device can be suitable for different shapes and sizes of joint parts. The auxiliary device can ensure that the silk screen printing super flexible radio frequency coil is closely attached to the joint part, and at the same time, sufficient stability is provided to prevent the coil from being displaced during scanning, and the coil will not fall off due to the displacement of the patient.
[0037] The auxiliary device for the silk screen printing super flexible radio frequency coil in magnetic resonance imaging provided in the embodiment can fix the silk screen printing super flexible radio frequency coil on the joint part through the auxiliary device and magic tape, and can ensure that the center of the silk screen printing super flexible radio frequency coil is consistent with the scanning center. This is very helpful for improving the imaging stability and imaging effect.
[0038] It should be noted that the relationship terms such as "first" and "second" described above are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between the entities; the "upper surface, lower surface, top, bottom" described above and the orientation words "up, down, left, right" are defined based on the drawings. The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.
[0039] The above describes the support device for the super flexible radio frequency coil in magnetic resonance imaging provided by the utility model in detail. The principle and implementation mode of the utility model are described by applying specific examples. The above description of the embodiments is only used to help understand the method and core idea of the utility model. It should be noted that the ordinary skilled in the art can make some improvements and modifications to the utility model without departing from the principle of the utility model. These improvements and modifications also fall within the protection scope of the utility model.
Claims
1. A support device for a super flexible radio frequency coil in magnetic resonance imaging, characterized in that, The support device Comprise the following components: Solid sponge pad; Suction cup device; The suction cup device is used for fixing the solid sponge pad above a magnetic resonance imaging scanning bed; The super-soft radio frequency coil in the magnetic resonance imaging is a screen-printed super-soft radio frequency coil.
2. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 1, characterized in that, The solid sponge pad is provided with a groove in the middle.
3. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 1, characterized in that, The solid sponge pad is provided with a protrusion in the middle.
4. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 3, characterized in that, The support device further comprises an auxiliary device.
5. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 4, characterized in that, The auxiliary device comprises a base, a support rod and a sponge body.
6. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 5, characterized in that, The auxiliary device can use a magic tape to fix the center of the screen-printed super-soft radio frequency coil, ensuring that the center of the screen-printed super-soft radio frequency coil is consistent with the scanning center.
7. A support device for a super flexible RF coil in magnetic resonance imaging as defined in claim 1, characterized in that, The screen-printed super-soft radio frequency coil is a flexible printed four-channel radio frequency receiving coil.
8. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 7, characterized in that, Each channel radio frequency receiving coil of the screen-printed super-soft radio frequency coil is composed of four capacitors in series.
9. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 8, characterized in that, The four capacitors in series include three tuning capacitors and one matching capacitor.
10. A support device for a super flexible RF coil in magnetic resonance imaging as claimed in claim 4, characterized in that, The support rod of the auxiliary device comprises an upper support rod and a lower support rod, which are nested and connected, for adjusting the height of the auxiliary device.