CN218331937U - Radio frequency coil and radio frequency element - Google Patents

Abstract

The present disclosure provides a radio frequency coil and a radio frequency element, the radio frequency coil including: the conductive coil comprises a plurality of conductive parts which are sequentially connected, and each conductive part comprises a first line segment, a second line segment and a third line segment which are sequentially arranged, wherein the deviation of the first line segment is opposite to that of the second line segment, and the deviation of the third line segment is opposite to that of the second line segment; and the radio frequency chip is electrically connected with two ends of the conductive coil. The radio frequency coil provided by the embodiment of the disclosure can be well attached to joint parts and the like with large curvature change, so as to better play a role in a magnetic resonance imaging process, and data with high signal-to-noise ratio can be obtained.

Description

Radio frequency coil and radio frequency element

Technical Field

The present disclosure relates to the field of magnetic resonance imaging, and more particularly, to a radio frequency coil and a radio frequency element.

Background

Magnetic resonance imaging techniques are a significant advance in medical imaging and have evolved at an extremely rapid rate since the realization of applications. The basic principle of magnetic resonance imaging is to place the object in a special magnetic field, excite the hydrogen nuclei of the object with radio frequency pulses, cause the hydrogen nuclei to resonate, and absorb energy. After stopping the rf pulse, the hydrogen nuclei emit a signal at a specific frequency and release the absorbed energy. These signals are captured by a receptor and an image may be obtained via electronic computer processing.

When performing magnetic resonance imaging of a living body, for example, it is desirable that the radio frequency coil be well attached to the site to be measured in order to obtain a magnetic resonance image with a high signal-to-noise ratio. Because many parts of a living body such as a human body have large curvature and complicated structure, such as head and neck joints, mandible, knee patella, ankle, wrist, etc., it is difficult to achieve the fitting of the radio frequency coil to such parts.

One way is to design and manufacture the local radio frequency coil according to different parts, so that the manufactured local radio frequency coil has a hard plastic shell. The shape and the space size of the hard plastic shell are fixed, the laminating property and the applicability are poor, different use requirements are difficult to adapt, and different sizes are not easy to take into consideration so as to obtain a high signal-to-noise ratio. There is also a method of wrapping a flexible coil of a copper-based antenna with a flexible material, and although the flexible coil can have a certain flexibility and bendability and can satisfy the scanning requirements of curved surfaces with a certain radian, such as abdomen, heart, leg, and the like, it is difficult to be sufficient for some joint portions with a large curvature change. Most cases still only use plastic hard shells to make specific coils.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a radio frequency coil, which is applied to different portions with large curvature variation and has better conformability and applicability.

The disclosed embodiments also provide a radio frequency element in another aspect to realize magnetic resonance imaging of a part with large curvature change.

The disclosed embodiments provide a radio frequency coil including: the conductive coil comprises a plurality of conductive parts which are sequentially connected, and each conductive part comprises a first line segment, a second line segment and a third line segment which are sequentially arranged, wherein the deviation of the first line segment is opposite to that of the second line segment, and the deviation of the third line segment is opposite to that of the second line segment; and the radio frequency chip is electrically connected with two ends of the conductive coil.

With this arrangement, the line segments arranged in sequence constitute the conductive portions arranged along the geometric shape, which in turn helps to arrange the plurality of conductive portions along the geometric shape, thereby constituting the radio frequency coil. The radio frequency coil can be set into different geometric shapes and sizes according to requirements.

In some embodiments, the relative positions of the first, second and third segments can be changed to make the conductive coil stretchable.

In this way, the radio frequency coil provided by the embodiment of the present disclosure, by configuring the plurality of conductive portions, can be stretched, bent or deformed under the action of an external force, and can be well attached to a joint portion with a large curvature change, and the like, and can ensure that the radio frequency coil normally and stably operates, so as to better realize that the radio frequency coil plays a role in, for example, a magnetic resonance imaging process, and obtain data with a high signal-to-noise ratio.

In some embodiments, the first line segment, the second line segment, and the third line segment are all straight line segments.

Due to the arrangement, the conductive part in the shape is convenient to manufacture, the line segments can be arranged more densely, and the stretching in a larger size is facilitated.

In some embodiments, the first line segment, the second line segment, and the third line segment are each curved line segments.

By the arrangement, in the three line segments of the conductive part, the twisting performance of each line segment in different directions is better, and the turning position between two adjacent line segments is more smooth. The radio frequency coil can be well attached to a part to be measured with a complex shape, and has a long service life.

In some embodiments, the curved segment comprises a circular arc segment.

By such arrangement, the shapes of the two adjacent line segments are integrated, and the whole conductive part can be S-shaped. The conductive parts are sequentially arranged, and then the radio frequency coil is formed by matching with a radio frequency chip. The radio frequency coil can disperse the stress of tensile deformation.

In another aspect, the present disclosure provides a radio frequency element, including: the aforementioned radio frequency coil; and a stretchable substrate, the radio frequency coil being disposed on the stretchable substrate.

By the arrangement, the radio frequency element has better deformability and higher resilience, can play a role in the magnetic resonance imaging process and can acquire data with high signal-to-noise ratio.

In some embodiments, the radio frequency element further comprises a glue layer for bonding the radio frequency coil to the stretchable substrate.

By the arrangement, the radio frequency coil and the adhesive layer of the stretchable base material can be effectively prevented from being separated, after the radio frequency element is used, the stretchable base material can be retracted to recover to a natural state without the action of external force, and the radio frequency coil can be recovered to the natural state along with the stretchable base material.

In some embodiments, the stretchable substrate material comprises at least one of polyurethane and thermoplastic polyurethane rubber; the material of the conductive portion includes at least one of copper, silver, and liquid metal.

By the arrangement, the stretchable base material has good stretchable performance, the conductive part can move along with the shape and keep good conductive performance, and the radio frequency element is favorable for showing good use performance.

In some embodiments, the stretchable substrate is formed by a hot press process.

So configured, the stretchable substrate and the RF coil can be formed as a unitary body, and the RF element can better distribute stresses when deformed in tension.

In some embodiments, the radio frequency element comprises a plurality of radio frequency coils, two adjacent radio frequency coils partially overlapping.

According to the arrangement, the radio frequency coils are connected into a whole, so that the whole coverage area is large. The radio frequency element can be used to cover a large site to be measured and can obtain finer data.

In some embodiments, the number of rf coils in the rf element is five, and the five rf coils are a first rf coil, a second rf coil, a third rf coil, a fourth rf coil, and a fifth rf coil; the first radio frequency coil, the second radio frequency coil and the third radio frequency coil are arranged in parallel, and radio frequency chips of the first radio frequency coil, the second radio frequency coil and the third radio frequency coil are positioned on the same side; the fourth radio frequency coil covers the radio frequency chip of the first radio frequency coil and the radio frequency chip of the second radio frequency coil; the fifth radio frequency coil covers the radio frequency chip of the second radio frequency coil and the radio frequency chip of the third radio frequency coil.

With the arrangement, the five radio frequency coils can effectively cover the area to be measured, and the interference among the coils is small.

In some embodiments, the conductive coil of the rf coil is integrally attached to the stretchable substrate, and at least a portion of the rf chip of the rf coil is affixed to the stretchable substrate.

The arrangement is favorable for exerting the stretching and bending performances of the stretchable substrate and the conductive coil.

Drawings

Fig. 1 is a schematic structural diagram of a radio frequency coil according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic diagram of the RF coil of FIG. 1 in a stretched state;

FIG. 4 is a schematic diagram of another RF coil in accordance with an embodiment of the present disclosure;

FIG. 5 is an enlarged view at B in FIG. 4;

FIG. 6 is a schematic diagram of the RF coil of FIG. 5 in a stretched state;

fig. 7 is a schematic structural diagram of a radio frequency device according to an embodiment of the disclosure;

fig. 8 is a schematic view of a radio frequency device according to an embodiment of the disclosure in a stretched state;

fig. 9 is a schematic structural diagram of another rf device according to an embodiment of the disclosure;

fig. 10 is a schematic view of another radio frequency device according to an embodiment of the disclosure in a stretched state.

Reference numerals are as follows: 100. a radio frequency element; 1. a radio frequency coil; 2. a radio frequency chip; 3. a conductive coil; 30. a conductive portion; 31. a first line segment; 32. a second line segment; 33. a third line segment; 4. a stretchable substrate.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

The dimensions of the structures shown in the figures herein do not represent actual dimensions and may be adjusted as desired for actual production. The terms "upper", "lower", "left", "right", and the like as used herein refer to the orientation in the drawings and, unless otherwise specifically indicated, should not be construed as limiting the product in actual use.

The first, second, third, etc. are used herein only to distinguish between the same features, and it will be understood that the first radio frequency coil may also be referred to herein as the second radio frequency coil, and the second radio frequency coil may also be referred to herein as the first radio frequency coil.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein in the description of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the disclosed embodiments provide a radio frequency coil 1, the radio frequency coil 1 including a conductive coil 3 and a radio frequency chip 2.

Referring to the enlarged view shown in fig. 2, the conductive coil 3 includes a plurality of conductive portions 30 that are sequentially connected. The conductive coil 3 may also comprise wires of other configurations. Illustratively, the electrically conductive coil 3 is composed of a plurality of electrically conductive portions 30 arranged in succession. The conductive portion 30 includes a first line segment 31, a second line segment 32 and a third line segment 33 sequentially disposed. The conductive coil 3 may be considered as being entirely stretchable, i.e., having an extending direction including, but not limited to, a circumferential direction, and then the arrangement direction of the respective line segments 31 to 33 may be considered as the extending direction. Each segment of the line segment may have its own direction of extension.

As shown in fig. 2, for example, clockwise with respect to the figure, the extending direction of the first segment 31 may be considered to be left, the extending direction of the second segment 32 may be considered to be right, and the extending direction of the third segment 33 may be left. On the other hand, with respect to the counterclockwise direction in fig. 2, it can be considered that the extending direction of the third segment 33 is deviated to the left, the extending direction of the second segment 32 is deviated to the right, and the extending direction of the first segment 31 is deviated to the left. In summary, it can be considered that the first line segment 31 has the same bias as the third line segment 33, and the second line segment 32 has the opposite bias therebetween.

The radio frequency chip 2 is electrically connected with two ends of the conductive coil 3, and the radio frequency chip 2 and the conductive coil 3 can be used for forming a complete coil. The radiofrequency chip 2 comprises an electrical circuit that can be configured to recognize the electrical signal transmitted by the conductive coil 3.

Illustratively, the relative positions between the first wire segment 31, the second wire segment 32 and the third wire segment 33 can be changed so that the conductive coil 3 can be stretched. The conductive portion 30 is deformable by an external force. The bias of the first line segment 31 is opposite to the bias of the second line segment 32, and then a portion of the second line segment 32 forms a bent structure with the first line segment 31. Under the influence of external force, the included angle of the bending structure can be changed, and then the size of the bending structure in the overall extension direction of the conductive coil 3 can be changed. Similarly, a portion of the second line segment 32 and the third line segment 33 may also form a bending structure and deform under the action of external force.

As shown in fig. 3, for example, the conductive coil 3 is in tension after being subjected to a lateral tensile force, and the width of the conductive coil 3 is wider than that of the conductive coil 3 in the free state shown in fig. 1. The magnitude of the variation of the conductive portions 30 at different positions may be different. But also the conductive coil 3 may be bent and twisted in different directions. When the radio frequency coil 1 is used, the conductive coil 3 can be brought close to the scanned object. Even if the scanned object has a more complex surface form, the conductive coil 3 can be well attached to the scanned object, and even if different scanned objects have different forms, the conductive coil 3 can be adapted to the different scanned objects respectively.

The radio frequency coil provided by the embodiment of the disclosure has large-size tensile property and can realize more extreme bending deformation. The radio frequency coil can cover different human body parts, and can be effectively attached to parts with larger curvature change, such as joints, so as to obtain signals with high signal to noise ratio. In addition, the radio frequency coil has higher rebound property after stretching, can realize dynamic attaching effect in the scanning process, and reduces the influence of human body micromotion on signals; and recovered after being taken off to prepare for next fitting use. The radio frequency coil may be assembled into other components to implement, for example, signal acquisition functions therein.

As shown in fig. 1 and 2, a plurality of conductive portions 30 may be connected in sequence, and each conductive portion 30 may include three line segments. Taking the clockwise direction as shown in fig. 2 as an example, the first line segment 31 of the conductive portion 30 can be electrically connected to a third line segment of a previous conductive portion (not shown), and the two line segments extend in the same direction. The third wire segment 33 of the conductive portion 30 may be electrically connected to the first wire segment of the next conductive portion (not labeled), and the two wire segments extend in the same direction.

In other embodiments, the direction of extension of the first wire segment of a conductive portion may also be opposite to the direction of extension of the third wire segment of a preceding conductive portion. The extending direction of the third line segment of the conductive part and the extending direction of the first line segment of the subsequent conductive part can also be opposite. In other words, in some embodiments, the conductive portions 30 may be a circulating structural unit of the conductive coil 3. In other embodiments, two adjacent conductive portions may be symmetrically arranged, for example, rotationally symmetrical, mirror symmetrical.

As shown in fig. 1 and 2, a plurality of conductive portions 30 may be arranged along a circumference, for example. It can be considered that in a natural state, the outer circumference of the conductive coil 3 is substantially circular. The conductive coil 3 may be in a plane, and optionally the conductive coil 3 as a whole may also be arched or saddle-shaped in its natural state. Illustratively, the first line segment 31, the second line segment 32, and the third line segment 33 are circumferentially arranged. The arrangement direction of the wire segments in the conductive part 30 may be substantially the same as the arrangement direction of the conductive part 30 in the conductive coil 3. The circumferential arrangement mode enables the conductive coil 3 to have more comprehensive and balanced deformation performance when being subjected to external forces in different directions.

Illustratively, the first line segment 31, the second line segment 32, and the third line segment 33 are all straight line segments. As shown in fig. 1, the line segments of the conductive coil 3 may be relatively dense, and the included angle between two adjacent line segments may be relatively small, such as an acute angle. The bending structure formed by two adjacent wire sections can provide larger tensile deformation and can absorb certain compression deformation.

As shown in fig. 4 and 5, in some embodiments, the conductive portion 30 includes a first line segment 31, a second line segment 32 and a third line segment 33 sequentially disposed, and the conductive portion 30 may be "S" shaped or corrugated. The first line segment 31, the second line segment 32 and the third line segment 33 are curved line segments respectively.

As shown in fig. 5, for example, clockwise with respect to the figure, the extending direction of the first segment 31 may be considered to be left, the extending direction of the second segment 32 may be considered to be right, and the extending direction of the third segment 33 may be left. On the other hand, with respect to the counterclockwise direction in fig. 2, it can be considered that the extending direction of the third segment 33 is deviated to the left, the extending direction of the second segment 32 is deviated to the right, and the extending direction of the first segment 31 is deviated to the left. Illustratively, the junction of the first segment 31 and the second segment 32 is rounded, and the junction of the second segment 32 and the third segment 33 is rounded.

Illustratively, two adjacent conductive portions 30 are rounded. The conducting coil 3 can be smoothly transited everywhere. Two adjacent line segments in the conductive portion 30 may be considered to constitute a bent structure, which may be deformed. Illustratively, each line segment of the conductive portion 30 may comprise a curved segment that itself is deformable by an external force. The stress of the conductive coil 3 is relatively dispersed when the conductive coil is deformed by external force, and the resilience performance after stretching is good and stable.

As shown in fig. 6, the conductive coil 3 is in tension after being subjected to a lateral pulling force, and the width of the conductive coil 3 is wider than that of the conductive coil 3 in the free state shown in fig. 4. The amplitude of the variation of the conductive part 30 may be different at different positions. Some conductive parts 30 in the middle of the conductive coil 3 are stretched more gently, and other conductive parts 30 are stretched to have a certain twist, so that the whole conductive coil 3 is changed from a circular shape in a natural state to an oval shape.

Illustratively, each curved segment of the conductive portion 30 may comprise a circular arc segment. Alternatively, the conductive portion 30 may have a sinusoidal structure, an elliptical structure, or the like. In some embodiments, the conductive coil 3 may include conductive portions 30 of different shapes. In some embodiments, the conductive portions 30 of the conductive coil 3 have the same structure.

The conductive part 30 may be a circulating structural unit of the conductive coil 3. In other embodiments, two adjacent conductive portions may be symmetrically disposed. The electrically conductive coil 3 may be of unitary construction. Illustratively, the portion of the conductive coil 3 that contacts the rf chip 2 may be a complete conductive portion 30 or an incomplete segment of a wire.

Illustratively, the material of the conductive coil 3 includes at least one of metals such as copper, silver, and the like. For example, the conductive coil 3 is a structure formed by bending a copper wire. The conductive coil 3 may also be a braided copper wire or copper sheet. Illustratively, a conductive liquid metal may be disposed within a substrate (not shown) to form the conductive coil 3. The conductive coil 3 can also be formed by printing conductive silver paste on the substrate. The conductive coil 3 may be light, thin and flexible.

As shown in fig. 7, the disclosed embodiments provide a radio frequency element 100. The radio frequency element 100 includes: at least one radio frequency coil 1 and a stretchable substrate 4. The radio frequency coil 1 includes a conductive coil 3 and a radio frequency chip 2. The radio frequency coil 1 is disposed on a stretchable substrate 4.

The stretchable substrate 4 helps to distribute the stress generated by the radio frequency coil 1 when deformed and helps the radio frequency coil 1 to spring back. When multiple rf coils 1 are provided, the stretchable substrate 4 helps to insulate between different rf coils 1.

The radio frequency element provided by the embodiment of the disclosure can be attached to the parts with large curvature change of the human body, such as the head and neck joint, the lower jaw, the patella of the knee joint, the ankle, the wrist and the like. The radio frequency element has good laminating state, can realize dynamic laminating effect, and can be used for obtaining a magnetic resonance image with high signal-to-noise ratio. When a plurality of radio frequency coils 1 are arranged, the radio frequency coil can be used for fitting a part with larger size.

Illustratively, two adjacent radio frequency coils 1 may partially overlap, which may allow the radio frequency element 100 to cover the entire surface.

As shown in fig. 7, the radio frequency element 100 may comprise five radio frequency coils 1 as shown in fig. 1. The five radio frequency coils 1 may be arranged in two rows, one row having three radio frequency coils 1 and the other row having two radio frequency coils 1. The radio frequency coils 1 in two adjacent rows can be arranged in a staggered mode.

For example, consider five rf coils 1 as a first rf coil, a second rf coil, a third rf coil, a fourth rf coil, and a fifth rf coil, respectively. The first radio frequency coil, the second radio frequency coil and the third radio frequency coil are arranged in parallel, and radio frequency chips of the first radio frequency coil, the second radio frequency coil and the third radio frequency coil are positioned on the same side. The first radio frequency coil and the second radio frequency coil may partially overlap. The second radio frequency coil and the third radio frequency coil may partially overlap. The fourth radio frequency coil covers the radio frequency chip of the first radio frequency coil and the radio frequency chip of the second radio frequency coil. The fifth radio frequency coil covers the radio frequency chip of the second radio frequency coil and the radio frequency chip of the third radio frequency coil, and the fifth radio frequency coil and the fourth radio frequency coil are partially overlapped.

As shown in fig. 8, when the rf element 100 is stretched by an external force, the stretchable substrate 4 is stretched or widened, and the conductive coil 3 of each rf coil 1 deforms along with the deformation of the stretchable substrate 4. After the rf element 100 is deformed, the adjacent two conductive coils 3 may still partially overlap.

Illustratively, the electrically conductive coil 3 may be enclosed in the body by the stretchable substrate 4. The conductive coil 3 may be entirely conformable to the stretchable substrate 4, and when the stretchable substrate 4 is stretched, the conductive coil 3 may stretch as the stretchable substrate 4 is stretched. At least a portion of the rf chip 2 is fixedly connected to the stretchable substrate 4. Illustratively, the radio frequency chip 2 may be affixed to the surface of the stretchable substrate 4. At least one contact point of the radio frequency chip 2 and the stretchable substrate 4 may be fixed. Illustratively, a part of the radio frequency chip 2 is fixed with the stretchable substrate 4, when the stretchable substrate 4 is stretched, the area which cannot be stretched due to the influence of the hardness of the radio frequency chip 2 is reduced, so that the stretching and bending performance of the stretchable substrate 4 can be better exerted. The conductive coil 3 can be deformed with the stretchable substrate 4 and restored to its original state.

Illustratively, the conductive coil 3 may also be adhered to the stretchable substrate 4. The radio frequency component 100 may include a glue layer. The glue layer is used for bonding the radio frequency coil 1 and the stretchable base material 4.

Illustratively, the stretchable substrate 4 is formed by a hot press process. The conductive coil 3 may be encapsulated within the stretchable substrate 4 during a hot pressing process. Illustratively, the material of stretchable substrate 4 includes at least one of Polyurethane (PU) and thermoplastic polyurethane rubber (TPU).

As shown in FIG. 9, the RF device 100 may include a stretchable substrate 4 and an RF coil 1 as shown in FIG. 4. The radio frequency element 100 may comprise five radio frequency coils 1. It should be understood that the radio frequency element 100 provided by the embodiments of the present disclosure may have five or other numbers of radio frequency coils 1.

The radio frequency coils 1 in the radio frequency element 100 may be arranged in two rows, a first row having three radio frequency coils 1 and a second row having two radio frequency coils 1. Two adjacent conductive coils 3 partially overlap, and the conductive coil 3 of the second row may partially overlap with the radio frequency chip of the first row.

As shown in fig. 10, the stretchable substrate 4 is stretched by an external force to deform, and the conductive coil 3 of each rf coil 1 is deformed according to the deformation of the stretchable substrate 4. After the rf element 100 is deformed, the adjacent two conductive coils 3 may still partially overlap. In other cases, the rf element 100 may be bent to conform to a surface of complex shape.

Illustratively, the radio frequency elements may include different types of radio frequency coils. For example, the conductive portion near the center of the stretchable substrate may comprise a straight line segment and the conductive portion near the edge of the stretchable substrate may comprise a curved line segment.

In other embodiments, the rf coil provided by embodiments of the present disclosure may be applied to other types of substrates to form rf components.

The present disclosure provides a method of manufacturing a radio frequency element, the method comprising the steps of: arranging a conductive coil on one side of the substrate layer; arranging a covering layer on one side of the conductive coil, which is far away from the substrate layer; the two steps can be circularly carried out until all the conductive coils are arranged and covered by at least one covering layer; and arranging radio frequency chips, and electrically connecting the radio frequency chips with the conductive coils in a one-to-one correspondence manner to form the radio frequency coils. Illustratively, the cover layer may be a glue layer.

For example, a plurality of conductive coils may be disposed in the same layer without contacting each other.

In other embodiments, after the cover layer is provided, a hot pressing process is also performed, such that the cover layer and the substrate layer are hot pressed together, or two adjacent cover layers are hot pressed together.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present disclosure, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the patent disclosure. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the concept of the present disclosure, and these changes and modifications are all within the scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims (10)

1. A radio frequency coil, comprising:

the conductive coil (3) comprises a plurality of conductive parts (30) which are sequentially connected, each conductive part (30) comprises a first line segment (31), a second line segment (32) and a third line segment (33) which are sequentially arranged, wherein the deviation of the first line segment (31) is opposite to that of the second line segment (32), and the deviation of the third line segment (33) is opposite to that of the second line segment (32); and

and the radio frequency chip (2) is electrically connected with two ends of the conductive coil (3).

2. The radio frequency coil as claimed in claim 1, wherein the relative positions between the first (31), second (32) and third (33) wire segments can be changed such that the conductive coil (3) is stretchable.

3. The radio frequency coil as set forth in claim 1, wherein the first, second, and third line segments (31, 32, 33) are all straight line segments.

4. The radio frequency coil as set forth in claim 1, wherein the first, second, and third line segments (31, 32, 33) are each a curved line segment.

5. The radio frequency coil of claim 4, wherein the curvilinear segments comprise circular arc segments.

6. A radio frequency component, comprising:

the radio frequency coil (1) of any of claims 1 to 5; and

a stretchable substrate (4), the radio frequency coil (1) being disposed on the stretchable substrate (4).

7. The radio frequency component of claim 6, wherein the radio frequency component (100) further comprises a glue layer for bonding the radio frequency coil (1) and the stretchable substrate (4).

8. The radio frequency element according to claim 6, wherein the stretchable substrate (4) is shaped by a hot pressing process.

9. The radio frequency element according to claim 6, wherein the radio frequency element (100) comprises a plurality of the radio frequency coils (1), adjacent two of the radio frequency coils (1) partially overlapping.

10. The radio frequency element according to claim 6, wherein the conductive coil (3) of the radio frequency coil (1) is integrally conformed to the stretchable substrate (4); at least a portion of the radio frequency chip (2) of the radio frequency coil (1) is secured to the stretchable substrate (4).

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