A breast coil structure and magnetic resonance imaging device

Abstract

The present invention belongs to the technical field of breast disease diagnosis, and discloses a breast coil structure and a magnetic resonance imaging device. The breast coil structure comprises: a shell, on which a cup is arranged, and there are two cups; an adjustment mechanism, and the adjustment mechanism is configured to be able to adjust the capacity of two cups at the same time; and a coil assembly, which is arranged in the cup. The breast coil structure can enlarge or reduce the cup capacity according to the size of the breast, so that small-sized breasts and large-sized breasts can have a good fit, so as to ensure that breasts of different sizes have a good signal-to-noise ratio, thereby realizing automatic matching of the scanning depth during scanning and detection. The adjustment mechanism is used to adjust the capacity of the two cups, and can cover cups of different sizes, with strong versatility. The user only needs to use one adjustment mechanism to achieve the cup of the required capacity, and the capacity of the two cups can be changed at the same time, which simplifies the operation process and is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of breast disease diagnosis, and in particular to a breast coil structure and a magnetic resonance imaging device. Background Art

[0002] In recent years, breast diseases have become the leading killer threatening women's health. They not only threaten the patient's life, but also can lead to damage to female sexual organs and upper limb dysfunction. Currently, breast disease diagnosis mainly adopts ultrasound, magnetic resonance imaging, X-ray mammography and other methods. Among them, magnetic resonance imaging can provide more information and provide strong evidence for differential diagnosis, so that early diagnosis can reduce the risk of death from breast cancer and effectively reduce treatment costs.

[0003] At present, when performing MRI scans on the breast, a dedicated breast coil is required to be used in conjunction with the MRI scanning device. Since the closer the distance between the coil that collects the MRI signal and the human tissue is, the higher the signal-to-noise ratio of the received MRI signal is, for this reason, when performing MRI on human tissue, the coil is often made to fit the shape of the human tissue as closely as possible.

[0004] Due to differences between individuals, the breast size of the patient to be tested may vary greatly. If the same size coil is used, the larger breast can fit the coil better, thus obtaining a higher fill factor and better imaging quality; while the smaller breast fits the coil poorly, and the low fill factor leads to an empty cup, resulting in a low signal-to-noise ratio, affecting the imaging quality, and causing inconvenience to the doctor's diagnosis. If coils suitable for different patients are developed, the economic burden of producing finished products and patients will be increased. Summary of the invention

[0005] The object of the present invention is to provide a breast coil structure and a magnetic resonance imaging device, which can adjust the cup size according to the size of the breast, have strong versatility, and improve the signal-to-noise ratio during breast detection.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A breast coil structure, comprising:

[0008] A shell, wherein two cups are arranged on the shell;

[0009] an adjustment mechanism, the adjustment mechanism being configured to be able to adjust the capacity of the two cups simultaneously;

[0010] The coil assembly is arranged in the cup.

[0011] Preferably, the cup comprises a support frame, one end of the support frame is rotatably connected to the shell, and the adjustment mechanism can drive the other end of the support frame to contract or expand.

[0012] Preferably, the support frame includes a plurality of connecting rods, a first through hole is provided at the top of the shell, the plurality of connecting rods are evenly arranged along the circumference of the first through hole, one end of the connecting rod is rotatably connected to the shell, and the other end is connected to the adjustment mechanism.

[0013] Preferably, the adjustment mechanism comprises:

[0014] A driving part, which passes through the housing and is slidably matched with the housing;

[0015] A supporting part connected to the driving part, wherein a second through hole is arranged on the supporting part, and the second through hole and the first through hole are arranged opposite to each other;

[0016] A plurality of adjusting parts are evenly arranged along the circumference of the second through hole, a guide hole is correspondingly arranged on each of the connecting rods, and each of the adjusting parts is correspondingly penetrated through the guide hole and slidably matched therewith.

[0017] Preferably, the guide hole extends along the length direction of the connecting rod.

[0018] Preferably, the diameter of the second through hole is smaller than the diameter of the first through hole, so that the cup has a frustum-shaped structure.

[0019] Preferably, the adjustment mechanism also includes a plurality of limiting parts, and the plurality of limiting parts are evenly arranged along the circumference of the second through hole, one adjusting part is arranged between two adjacent limiting parts, a limiting hole is arranged on the limiting part, the coil assembly is passed through the limiting hole, and the limiting part is used for limiting the coil assembly.

[0020] Preferably, the coil assembly comprises a plurality of first coil units connected to each other, and one first coil unit is arranged between two adjacent connecting rods.

[0021] Preferably, the first coil unit includes a first antenna, a second antenna, a third antenna and a fourth antenna, the first antenna is arranged on the inner wall of the shell, the second antenna and the third antenna are respectively attached to the outer wall of the side where two adjacent connecting rods are close to each other, the fourth antenna is arranged between the second antenna and the third antenna, and the first antenna, the second antenna, the third antenna and the fourth antenna are connected end to end in sequence to form a closed loop structure.

[0022] Preferably, the coil assembly further comprises:

[0023] A second coil unit, which is arranged on the inner wall of the shell and is arranged opposite to the first through hole;

[0024] The third coil unit is disposed on the supporting portion and directly opposite to the second through hole.

[0025] Preferably, it further comprises a supporting mechanism, wherein the supporting mechanism is arranged in the shell and connected to the adjusting mechanism for supporting the adjusting mechanism.

[0026] Preferably, the support mechanism has a sawtooth structure along the adjustment direction, and the adjustment mechanism is provided with a protrusion, and the protrusion of the adjustment mechanism is engaged with the sawtooth structure of the support mechanism to form a plug-in structure.

[0027] Preferably, it further comprises a guiding mechanism, which is arranged in the shell, passes through the adjusting mechanism and slidably cooperates with the adjusting mechanism, and is used for guiding the adjusting mechanism.

[0028] To achieve the above object, the present invention also provides a magnetic resonance imaging device, including a magnetic resonance scanning device and the above breast coil structure, wherein the magnetic resonance scanning device is used to receive magnetic resonance imaging signals of the coil assembly in the breast coil structure.

[0029] Beneficial effects of the present invention:

[0030] The breast coil structure provided by the present invention has a cup arranged on the shell, the shell plays the role of overall support, and the cup plays the role of accommodating the breast. The number of cups is two, and the two cups correspond to the breasts of the patient to be detected one by one. A coil assembly is arranged inside the cup for scanning the breast. According to the size of the breast, the cup capacity can be enlarged or reduced, so that a small-sized breast has a small cup, and a large-sized breast has a large cup, so that the small-sized breast and the large-sized breast can have a good fit, so as to ensure that breasts of different sizes have a good signal-to-noise ratio, so as to achieve automatic matching of the scanning depth when performing scanning detection. The size adjustment of the capacity of the two cups is realized by using an adjustment mechanism, and the coverage of cups of different sizes can be achieved, the versatility is strong, the space occupied is small, the storage problem is solved, and the material cost is saved. The user only needs to use an adjustment mechanism to realize the cup of the required capacity, and the capacity of the two cups can be changed at the same time, which simplifies the operation process, is easy to use, and saves the detection time cost.

[0031] The magnetic resonance imaging device provided by the present invention is used to receive the magnetic resonance imaging signal of the coil assembly in the breast coil structure. Under the cooperation of the magnetic resonance scanning device and the breast coil structure, effective information is provided for the diagnosis of the patient's breast, which can reduce the risk of death and treatment cost of breast cancer during early diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural schematic diagram of a breast coil structure of the present invention from one viewing angle;

[0033] Figure 2 is a schematic structural diagram of the breast coil structure of the present invention from another perspective;

[0034] Figure 3 is a schematic diagram of the breast coil structure of the present invention in a contracted state;

[0035] Figure 4 It is a schematic diagram of the breast coil structure of the present invention in an expanded state.

[0036] In the figure:

[0037] 1. Shell; 2. Cup; 3. Adjustment mechanism; 4. Support frame; 5. Support mechanism; 6. Guide mechanism; 7. Plug-in structure;

[0038] 11. a first through hole;

[0039] 31. driving part; 32. supporting part; 321. second through hole; 33. adjusting part; 331. adjusting seat; 332. sliding member; 34. limiting part;

[0040] 41. Connecting rod; 411. Guide hole. DETAILED DESCRIPTION

[0041] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] This embodiment provides a magnetic resonance imaging device, including a magnetic resonance scanning device and a breast coil structure, wherein the magnetic resonance scanning device is used to receive magnetic resonance imaging signals of a coil assembly in the breast coil structure. With the cooperation of the magnetic resonance scanning device and the breast coil structure, effective information is provided for the diagnosis of the patient's breast, and the risk of death and treatment cost of breast cancer can be reduced during early diagnosis.

[0046] Since the breast sizes of the patients to be tested may vary greatly, for the same size coil, the larger breast can fit the coil better, with a good filling effect and high imaging quality; while the smaller breast fits the coil poorly, and is prone to empty cups, resulting in low signal-to-noise ratio and affecting imaging quality. If each patient to be tested has a customized coil that matches their breast size, although it can achieve a good filling effect, there are too many coils, poor versatility, and difficulty in storage and placement. More importantly, this will undoubtedly increase the cost of testing.

[0047] In order to solve this problem, this embodiment provides a breast coil structure, such as Figure 1 As shown, the breast coil structure includes a shell 1, an adjustment mechanism 3 and a coil assembly (not shown in the figure), and the shell 1 plays a role of overall support. A cup 2 is arranged on the shell 1, and the cup 2 plays a role of accommodating the breast. There are two cups 2, and the two cups 2 correspond to the breasts of the patient to be tested one by one. A coil assembly is arranged inside the cup 2 for scanning the breast. The adjustment mechanism 3 is partially arranged in the shell 1 and connected to the cup 2. The adjustment mechanism 3 is configured to be able to adjust the capacity of the two cups 2 at the same time, so as to realize the adjustable function of the cup 2 during the breast examination.

[0048] The breast coil structure provided in this embodiment can enlarge or reduce the capacity of the cup 2 according to the size of the breast, so that a small-sized breast has a small cup 2, and a large-sized breast has a large cup 2, so that the small-sized breast and the large-sized breast can have a good fit to ensure that breasts of different sizes have a good signal-to-noise ratio, so that when performing scanning and detection, automatic matching of the scanning depth is achieved, and the imaging quality is good. The adjustment mechanism 3 is used to adjust the size of the two cups 2, which can cover breasts of different sizes. It has strong versatility, occupies little space, solves the problem of storage, and saves material costs. The user only needs to use an adjustment mechanism 3 to achieve a cup 2 of the required capacity, and the capacity of the two cups 2 can be changed at the same time, which simplifies the operation process, is easy to use, and saves detection time costs.

[0049] Preferably, the adjustment mechanism 3 is configured to be able to slide along the axis of the cup 2, that is, the adjustment direction is the axis of the cup 2, so that the user can adjust the capacity of the cup 2 by moving up and down. Compared with the horizontal adjustment method, the user can better apply force by pressing down to move up and down, which reduces the difficulty of operation.

[0050] Since the two cups 2 are symmetrically arranged on both sides of the shell 1 and have the same structure, for the convenience of description, one cup 2 will be described in detail.

[0051] In order to adjust the capacity of the cup 2, the cup 2 includes a support frame 4, one end of which is rotatably connected to the housing 1, and the adjustment mechanism 3 can drive the other end of the support frame 4 to contract or expand. When the adjustment mechanism 3 drives the other end of the support frame 4 to contract, the capacity of the cup 2 is reduced; when the adjustment mechanism 3 drives the other end of the support frame 4 to expand, the capacity of the cup 2 is increased.

[0052] Specifically, a first through hole 11 is provided at the top of the shell 1, and the first through hole 11 provides an effective avoidance space for the breast of the patient to be tested to extend into the cup 2, and the first through hole 11 is a circular hole structure. The support frame 4 includes a plurality of connecting rods 41, and the plurality of connecting rods 41 are evenly arranged along the circumference of the first through hole 11, so that the plurality of connecting rods 41 are wrapped together to form a receiving space for accommodating the breast of the patient to be tested. Under the mutual cooperation of the first through hole 11 and the plurality of connecting rods 41, the cup 2 is recessed relative to the shell 1, so that the internal shape of the receiving space is approximately the same as the shape of the human breast. One end of the connecting rod 41 is rotatably connected to the shell 1, and the other end is connected to the adjustment mechanism 3. One end of the connecting rod 41 is a fixed end, which can only rotate relative to the shell 1, and the other end of the connecting rod 41 is a driving adjustment end. The adjustment mechanism 3 can drive the driving adjustment end of the connecting rod 41 to contract or expand, thereby realizing the gathering and dispersion of the entire support frame 4.

[0053] In order to achieve the installation of the fixed end of the connecting rod 41, a plurality of mounting seats are arranged on the inner wall of the top of the outer shell 1, and the plurality of mounting seats are evenly arranged along the circumference of the first through hole 11. The plurality of mounting seats are connected to the plurality of connecting rods 41 one by one through a rotating shaft, thereby achieving the installation of the fixed end of the connecting rod 41.

[0054] In order to achieve the adjustment of the driving adjustment end of the connecting rod 41, it is necessary to implement it through the adjustment mechanism 3, and the adjustment mechanism 3 is introduced in detail below.

[0055] like Figure 1-Figure 2 As shown, the adjustment mechanism 3 includes a driving part 31, a supporting part 32 and a plurality of adjusting parts 33. The driving part 31 passes through the housing 1 and slides with the housing 1. Optionally, a slide groove is provided on the side walls on both sides of the housing 1 along the height direction, and the height direction is the axial direction of the cup 2. The driving part 31 passes through the slide groove and slides with it. The slide groove guides the driving part 31 to ensure the smooth movement of the driving part 31. The driving part 31 is a bar-shaped structure, and one end of the driving part 31 preferably extends out of the housing 1, so that the driving part 31 plays the role of a handle, which is convenient for the user to hold and easy to operate.

[0056] One end of the driving part 31 is used for the user to hold, and the other end is connected to the supporting part 32. A plurality of adjusting parts 33 are arranged on the supporting part 32, and the supporting part 32 plays the role of bearing the adjusting parts 33. A second through hole 321 is arranged on the supporting part 32, and the second through hole 321 and the first through hole 11 are arranged opposite each other. A plurality of adjusting parts 33 are evenly arranged along the circumference of the second through hole 321. In this way, both ends of the connecting rod 41 can form an annular structure, thereby achieving a good match with the shape of the human breast. Optionally, the diameter of the second through hole 321 is smaller than the diameter of the first through hole 11, so that the cup 2 is a frustum-shaped structure, and the frustum-shaped structure can be adapted to the shape of the human breast to the greatest extent, further ensuring the fit of the breast, and the second through hole 321 can also provide an avoidance space for the head position of the breast, while ensuring the accuracy of the detection, improving the patient's detection experience.

[0057] A guide hole 411 is correspondingly provided on each connecting rod 41, and each adjusting part 33 is correspondingly penetrated in the guide hole 411 and slidably cooperates with it. The guide hole 411 plays a role in guiding the adjusting part 33 to ensure the smooth movement of the adjusting part 33. When the driving part 31 drives the adjusting part 33 to move up and down through the supporting part 32, the adjusting part 33 can slide in the guide hole 411 and drive the connecting rod 41 to move up and down, thereby realizing the lifting and lowering of the connecting rod 41. Since one end of the connecting rod 41 can only rotate relative to the housing 1, when the other end of the connecting rod 41 is lifted, multiple connecting rods 41 converge in the direction of approaching each other, that is, the other end of the connecting rod 41 gathers in the direction close to the axis of the cup 2, thereby realizing the process of reducing the capacity of the cup 2. When the other end of the connecting rod 41 is lowered, multiple connecting rods 41 are dispersed in the direction away from each other, that is, the other end of the connecting rod 41 expands in the direction away from the axis of the cup 2, thereby realizing the process of increasing the capacity of the cup 2.

[0058] Preferably, the guide hole 411 is a waist-shaped hole structure, and the guide hole 411 extends along the length direction of the connecting rod 41, so that the direction of the force exerted by the adjusting portion 33 on the connecting rod 41 is the extension direction of the inner wall of the guide hole 411, and this direction can be decomposed into a first force along the axial direction of the cup 2 and a second force along the radial direction of the cup 2. The first force can realize the pulling down and lifting up of the connecting rod 41, and the second force realizes the convergence and dispersion of the connecting rod 41.

[0059] like Figure 3 As shown, when the adjusting portion 33 is located at one end of the guide hole 411 close to the housing 1, the adjusting portion 33 lifts the connecting rod 41 upward, and the connecting rod 41 and the axis of the cup 2 have the largest angle, and this position is the highest position of the other end of the connecting rod 41. Since the position of one end of the connecting rod 41 is constrained by the first through hole 11, the area S of the first through hole 11 is constant, and the other end of the connecting rod 41 is at the highest position, there is a minimum distance between the other end of the connecting rod 41 and the top wall of the housing 1, and this position is the minimum capacity limit position of the cup 2.

[0060] like Figure 4 As shown, when the adjusting portion 33 is located at the end of the guide hole 411 away from the housing 1, the adjusting portion 33 pulls the connecting rod 41 downward, and the connecting rod 41 and the axis of the cup 2 have the smallest angle, and this position is the lowest position of the other end of the connecting rod 41. Since the position of one end of the connecting rod 41 is constrained by the first through hole 11, the area S of the first through hole 11 is constant, and the other end of the connecting rod 41 is at the lowest position, there is a maximum distance between the other end of the connecting rod 41 and the top wall of the housing 1, and this position is the maximum capacity limit position of the cup 2.

[0061] Each adjusting portion 33 includes an adjusting seat 331 and a sliding member 332. The adjusting seat 331 is arranged on the supporting portion 32. The sliding member 332 is arranged on the adjusting seat 331. The sliding member 332 is specifically a latch or a stud. The sliding member 332 is passed through the guide hole 411 and slidably cooperates with the guide hole 411, so as to achieve the adjustment of the capacity of the cup 2 while moving the connecting rod 41 up and down.

[0062] It is understandable that the support frame 4 formed by a plurality of connecting rods 41 not only provides a space for accommodating the breast of the patient to be examined, but also plays a bearing role for the coil assembly, thereby realizing a magnetic resonance scanning examination of the patient.

[0063] Further, the coil assembly includes a plurality of first coil units connected to each other, and a first coil unit is arranged between two adjacent connecting rods 41. In this way, the first coil units are distributed along the arrangement of the connecting rods 41, and the first coil units can well cover the support frame 4 to improve the filling factor between the first coil unit and the patient's breast, thereby ensuring the fit of the breast to the coil.

[0064] Specifically, the first coil unit includes a first antenna, a second antenna, a third antenna and a fourth antenna, the first antenna is arranged on the inner wall of the housing 1, the second antenna and the third antenna are respectively attached to the outer wall of the side where two adjacent connecting rods 41 are close to each other, the fourth antenna is arranged between the second antenna and the third antenna, and the first antenna, the second antenna, the third antenna and the fourth antenna are connected end to end in sequence to form a closed loop structure. With this arrangement, the second antenna and the third antenna cover the position coil of the connecting rod 41, and the first antenna and the fourth antenna cover the position coil between two adjacent connecting rods 41, further ensuring the degree of coil coverage.

[0065] In order to ensure the position stability of the first coil unit, a plurality of limiting portions 34 (such as Figure 1 As shown in the figure, a plurality of limiting portions 34 are evenly arranged along the circumference of the second through hole 321, an adjusting portion 33 is arranged between two adjacent limiting portions 34, a limiting hole is arranged on the limiting portion 34, the fourth antenna of the first coil unit is passed through the limiting hole, and the limiting portion 34 is used to limit the fourth antenna to avoid the fourth antenna from moving, thereby ensuring the installation stability of the first coil unit.

[0066] In order to further improve the accuracy of magnetic resonance scanning, the coil assembly further includes a second coil unit and a third coil unit. The second coil unit is arranged on the inner wall of the housing 1 and is arranged opposite to the first through hole 11. The third coil unit is arranged on the support portion 32 and is arranged opposite to the second through hole 321. Since the overall shape of the cup 2 is a frustum structure, the second coil unit realizes coil coverage of the bottom of the cup 2, the third coil unit realizes coil coverage of the top of the cup 2, and the first coil unit realizes coil coverage of the side wall of the cup 2. Under the joint action of the first coil unit, the second coil unit and the third coil unit, the distance between the patient's breast and the coil used to collect magnetic resonance signals is close, and the degree of fit is high, thereby improving the signal-to-noise ratio of the received magnetic resonance imaging signal to ensure the imaging quality.

[0067] It is understandable that the first coil unit, the second coil unit and the third coil unit can all be made of conductive materials, such as copper wires. However, in the process of adjusting the capacity of the cup 2, each antenna in the first coil unit needs to move and change with the connecting rod 41. In order to solve this problem, the following two methods can be used. The first method is to set the length of the antenna of the first coil unit to be relatively long, which is sufficient to meet the maximum capacity requirement of the cup 2. When the cup 2 is at the minimum capacity, part of the antenna of the first coil unit is in a bent state. Therefore, this method requires the conductive material to have good bendability; the second method is that the wire material is made of elastic material, so that when the cup 2 is at the maximum capacity, part of the antenna of the first coil unit is in an extended state. By setting the conductive material to be scalable, the placement space of the coil is saved and the appearance is strong.

[0068] Since there are two cups 2, the two adjusting parts 33 of the adjusting mechanism 3 adjust the two cups 2 one by one, and the two supporting parts 32 are connected through the middle part, so that the adjusting mechanism 3 forms an integral structure, thereby realizing the function that the adjusting mechanism 3 can adjust the capacity of the two cups 2 at the same time. In order to ensure the adjustment effect of the adjusting mechanism 3, as Figure 1 As shown, the breast coil structure also includes a supporting mechanism 5, which is arranged in the shell 1 and connected to the adjusting mechanism 3. Preferably, the supporting mechanism 5 is passed through the middle part of the adjusting mechanism 3 to support the adjusting mechanism 3, so as to avoid the situation in which the middle part of the adjusting mechanism 3 collapses due to the need to support two cups 2.

[0069] Furthermore, the support mechanism 5 and the adjustment mechanism 3 are abutted against each other through the plug-in structure 7. By providing the plug-in structure 7, the adjustment mechanism 3 can be well supported and limited in the process of moving up and down. In this way, not only will the upward and downward movement trend of the adjustment mechanism 3 not be affected, but also the adjustment mechanism 3 can be limited after each micro-adjustment of the adjustment mechanism 3, thereby playing a role of position locking. The braking effect of the adjustment mechanism 3 in the adjustment process can be achieved without adding additional locking parts and locking processes, and the structure is simple and easy to use.

[0070] Preferably, when the support mechanism 5 is moved along the adjustment direction (i.e. Figure 1 The adjustment mechanism 3 has a sawtooth structure (in the middle height direction), and the adjustment mechanism 3 is provided with a protrusion, and the protrusion of the adjustment mechanism 3 is engaged with the sawtooth structure of the support mechanism 5 to form the above-mentioned plug-in structure 7, so that the adjustment mechanism 3 can be suspended at any position in the height direction, thereby ensuring that the cup 2 can remain unchanged at a specific capacity. It can be understood that the sawtooth structure can also be a wave-shaped structure, and the wave shape along the adjustment direction (i.e. Figure 1 The tooth structure is extended in the middle and high direction to form a continuous tooth structure.

[0071] In order to further ensure the smooth movement of the adjustment mechanism 3, the breast coil structure also includes a guide mechanism 6, which is arranged in the housing 1, and the guide mechanism 6 is inserted into the adjustment mechanism 3 and slidably cooperates with the adjustment mechanism 3, and is used to guide the adjustment mechanism 3. The guide mechanism 6 includes two guide rods, which are respectively arranged on both sides of the support mechanism 5, and the guide rods are a bare rod structure to ensure the smooth movement of the adjustment mechanism 3.

[0072] In the description herein, it should be understood that the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0073] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0074] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A breast coil structure, It is characterized in that include: A shell (1), wherein cups (2) are arranged on the shell (1), and the number of cups (2) is two; an adjustment mechanism (3), the adjustment mechanism (3) being configured to be able to adjust the capacity of the two cups (2) simultaneously; A coil assembly, which is arranged in the cup (2); The cup (2) comprises a support frame (4), one end of the support frame (4) is rotatably connected to the shell (1), and the adjustment mechanism (3) can drive the other end of the support frame (4) to contract or expand; The support frame (4) comprises a plurality of connecting rods (41), a first through hole (11) is provided at the top of the housing (1), the plurality of connecting rods (41) are evenly arranged along the circumference of the first through hole (11), one end of the connecting rod (41) is rotatably connected to the housing (1), and the other end is connected to the adjustment mechanism (3); The regulating mechanism (3) comprises: A driving portion (31) passing through the housing (1) and slidingly engaging with the housing (1); A support portion (32) connected to the driving portion (31), wherein a second through hole (321) is provided on the support portion (32), and the second through hole (321) and the first through hole (11) are arranged opposite to each other; A plurality of adjusting parts (33) are evenly arranged along the circumference of the second through hole (321), and a guide hole (411) is correspondingly arranged on each connecting rod (41), and each adjusting part (33) is correspondingly arranged in the guide hole (411) and slidably matched therewith.

2. The breast coil structure according to claim 1, It is characterized in that The guide hole (411) extends along the length direction of the connecting rod (41).

3. The breast coil structure according to claim 1, It is characterized in that The diameter of the second through hole (321) is smaller than the diameter of the first through hole (11), so that the cup (2) has a frustum-shaped structure.

4. The breast coil structure according to claim 1, It is characterized in that The adjustment mechanism (3) further comprises a plurality of limiting portions (34), wherein the plurality of limiting portions (34) are evenly arranged along the circumference of the second through hole (321), an adjustment portion (33) is arranged between two adjacent limiting portions (34), a limiting hole is arranged on the limiting portion (34), the coil assembly is passed through the limiting hole, and the limiting portion (34) is used for limiting the position of the coil assembly.

5. The breast coil structure according to claim 1, It is characterized in that The coil assembly comprises a plurality of first coil units connected to each other, and one of the first coil units is arranged between two adjacent connecting rods (41).

6. The breast coil structure according to claim 5, It is characterized in that The first coil unit comprises a first antenna, a second antenna, a third antenna and a fourth antenna, the first antenna being arranged on the inner wall of the housing (1), the second antenna and the third antenna being respectively attached to the outer walls of two adjacent connecting rods (41) on a side close to each other, the fourth antenna being arranged between the second antenna and the third antenna, and the first antenna, the second antenna, the third antenna and the fourth antenna being connected end to end in sequence to form a closed loop structure.

7. The breast coil structure according to claim 5, It is characterized in that The coil assembly further comprises: a second coil unit, which is arranged on the inner wall of the housing (1) and is arranged opposite to the first through hole (11); A third coil unit is arranged on the support portion (32) and is arranged opposite to the second through hole (321).

8. The breast coil structure according to claim 1, It is characterized in that It also comprises a supporting mechanism (5), wherein the supporting mechanism (5) is arranged in the housing (1) and connected to the adjusting mechanism (3) and is used to support the adjusting mechanism (3).

9. The breast coil structure according to claim 8, It is characterized in that The support mechanism (5) has a sawtooth structure along the adjustment direction, the adjustment mechanism (3) is provided with a protrusion, and the protrusion of the adjustment mechanism (3) meshes with the sawtooth structure of the support mechanism (5) to form a plug-in structure (7).

10. The breast coil structure according to claim 1, It is characterized in that It also comprises a guiding mechanism (6), wherein the guiding mechanism (6) is arranged in the housing (1), and the guiding mechanism (6) is passed through the adjusting mechanism (3) and slidably cooperates with the adjusting mechanism (3), and is used for guiding the adjusting mechanism (3).

11. A magnetic resonance imaging device, It is characterized in that It comprises a magnetic resonance scanning device and the breast coil structure according to any one of claims 1 to 10, wherein the magnetic resonance scanning device is used to receive magnetic resonance imaging signals of a coil component in the breast coil structure.

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