Mammary gland coil device

Abstract

The utility model relates to a mammary gland coil device. The mammary gland coil device is used for a magnetic resonance imaging system and comprises a coil supporting shell, two breast containing cavities are formed in the coil supporting shell, at least one end of the coil supporting shell in the first direction is provided with an observation window communicated with the corresponding breast containing cavity, and a set angle is formed between the first direction and the second direction; the second direction is the height direction of the coil supporting shell; the coil assembly is arranged in the coil supporting shell and comprises a first coil and a second coil, the first coil surrounds the outer side of the observation window, the head and the tail of the second coil are interrupted, the head end and the tail end of the second coil are connected to the corresponding first coil, and the second coil partially surrounds the outer side of the corresponding breast containing cavity. According to the mammary gland coil device, the current mammary gland position can be observed, so that the mammary gland position can be conveniently adjusted to be in a better position, and the scanning result is optimized.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a breast coil device. Background Art

[0002] Magnetic resonance imaging (MRI) is a diagnostic technique that uses the nuclear magnetic resonance phenomenon of a certain atomic nucleus in human tissues, and processes the obtained magnetic resonance signals through an electronic computer to reconstruct an image of a certain layer of the human body. In a magnetic resonance system, a radio frequency receiving coil is one of the very important components. According to the different scanning parts targeted, the radio frequency receiving coil is designed in various types. Among them, the breast coil is dedicated to the scanning of the female chest. In related technologies, when some breast coils are used, the breast position cannot be observed and adjusted according to requirements, resulting in poor scanning results. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a breast coil device that can observe the current breast position, so as to adjust the breast position to make it in a better position, thereby optimizing the scanning result.

[0004] A breast coil device for a magnetic resonance imaging system, the breast coil device includes:

[0005] A coil support shell having two breast accommodating cavities, and at least one end of the coil support shell in a first direction is provided with an observation window communicating with the corresponding breast accommodating cavity, wherein the first direction forms a set angle with a second direction, and the second direction is the height direction of the coil support shell; and

[0006] A coil assembly disposed in the coil support shell, the coil assembly includes a first coil and a second coil, the first coil surrounds the outside of the observation window, the second coil is intermittently connected head and tail, and both the head and the tail are connected to the corresponding first coil, and the second coil partially surrounds the outside of the corresponding breast accommodating cavity.

[0007] In some embodiments, the coil assembly further includes a third coil and a fourth coil, the third coil and the fourth coil are respectively disposed on both sides of the breast accommodating cavity in a third direction, and both the third coil and the fourth coil are in a butterfly shape, wherein the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0008] In some embodiments, the coil assembly further includes a fifth coil, the fifth coil is located on one side of the breast accommodating cavity in the second direction, and the fifth coil is in a butterfly shape.

[0009] In some embodiments, the coil assembly further includes at least one sixth coil. One end of the coil support shell has a recessed area for accommodating the patient's chin along a third direction. One end of the coil support shell along the second direction is a human body support surface for bearing the patient. The breast receiving cavity is formed by being recessed from the human body support surface. The sixth coil is disposed in a corner area between the human body support surface and the plane where the recessed area is located. Among them, the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0010] In some embodiments, the breast coil device further includes a support member rotatably connected to the coil support shell. The support member has a plug-in portion, and the support member can rotate relative to the coil support shell to a first position or a second position;

[0011] When the support member is in the first position, the plug-in portion protrudes out of the coil support shell and is configured to be plugged into a hospital bed to suspend the breast coil device above the hospital bed;

[0012] When the support member is in the second position, the plug-in portion is received into the coil support shell, and the breast coil device can at least partially sink into the receiving cavity of the hospital bed.

[0013] In some embodiments, the breast coil device further includes an elastic member. The elastic member is connected between the support member and the coil support shell, and the elastic member is used to assist in pulling the support member to rotate between the first position and the second position.

[0014] In some embodiments, a first connection portion connected to one end of the elastic member is provided on the coil support shell, a second connection portion connected to the other end of the elastic member and a shaft hole mating portion for shaft hole mating with the coil support shell are provided on the support member. The connection line between the shaft hole mating portion and the first connection portion extends along the second direction. The rotation axis of the support member is perpendicular to the second direction and the first direction; when the support member is in the first position and the second position, the position of the second connection portion is symmetrical about the connection line.

[0015] In some embodiments, the support member has a notch, and the second connection portion is disposed in the notch. When the support member rotates through a preset angle between the first position and the second position, the elastic member jumps from one side of the shaft hole mating portion over the notch to the other side of the shaft hole mating portion.

[0016] A breast coil device for a magnetic resonance imaging system, the breast coil device includes:

[0017] The coil support shell, the upper surface of which forms a human body support surface, the coil support shell is recessed downward from the human body support surface to form two breast accommodation cavities, and an observation window communicating with the corresponding breast accommodation cavity is provided on the side surface of the coil support shell; and

[0018] The coil assembly is arranged inside the coil support shell, and the coil assembly includes two first coils and two second coils;

[0019] Each of the first coils is respectively arranged on the side surface of the coil support shell and surrounds the outside of the observation window;

[0020] Each of the second coils respectively surrounds the middle parts of the two breasts and is connected to the first coil at the position of the observation window.

[0021] In some embodiments, the coil assembly further includes:

[0022] The third coil and the fourth coil are arranged on the side surface of the coil support shell, and the third coil and the fourth coil are respectively arranged on the front and rear sides of the observation window;

[0023] The fifth coil, which is correspondingly arranged at the position of the breast nipple;

[0024] And the third coil, the fourth coil and the fifth coil are all in a butterfly shape.

[0025] In the above breast coil device, an observation window communicating with the breast accommodation cavity is provided on the coil support shell. Therefore, after the patient's breast is placed in the breast accommodation cavity, it is possible to observe through the observation window whether the breast position has been adjusted to a better position. If the position is not good, it can be adjusted while observing to make it in a better position, so as to optimize the scanning result. Due to the provision of the observation window, the coil assembly also needs to be correspondingly adjusted to adapt to the new structure with the observation window. Specifically, a first coil and a second coil are arranged inside the coil support shell. The second coil is arranged corresponding to the position outside the breast accommodation cavity, and the first coil is arranged corresponding to the position outside the observation window, so as to ensure that after the observation window is opened, the imaging will not be affected due to the lack of coils in this area. The head and tail ends of the second coil are not connected, but are arranged intermittently and connected to the first coil, so as to adapt to the structure at the connection of the breast accommodation cavity and the observation window. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of a breast coil device in an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of a patient lying prone on the breast coil device in an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the first coil and the second coil in an embodiment of the present application.

[0029] Figure 4 This is a schematic diagram of the distribution of the coil assembly in an embodiment of the present application.

[0030] Figure 5 This is a schematic diagram of the deformation of the butterfly coil in an embodiment of the present application.

[0031] Figure 6 This is a schematic diagram of the plug of the breast coil device in an embodiment of the present application being received in the plug fixing groove.

[0032] Figure 7 This is a schematic diagram of the breast coil device being suspended and supported on the hospital bed in an embodiment of the present application.

[0033] Figure 8 It is Figure 7 a cross-sectional view of the structure shown.

[0034] Figure 9 This is a schematic diagram of the breast coil device partially sinking into the hospital bed in an embodiment of the present application.

[0035] Figure 10 It is Figure 9 a cross-sectional view of the structure shown.

[0036] Figure 11 This is a schematic diagram of the support member and the elastic member in an embodiment of the present application (the support member is in the first position).

[0037] Figure 12 This is a schematic diagram of the support member and the elastic member in an embodiment of the present application (the support member is in the second position).

[0038] Figure 13 It is Figure 12 a schematic diagram of the structure shown from the bottom view perspective.

[0039] Reference numerals:

[0040] 100, coil support shell; 110, breast accommodation cavity; 111, human body support surface; 120, observation window; 130, first connection portion; 141, first limiting portion; 142, second limiting portion; 151, first accommodation groove; 152, second accommodation groove; 160, groove; 170, plug fixing groove; 180, recessed area;

[0041] 200, coil assembly; 210, first coil; 220, second coil; 230, third coil; 240, fourth coil; 250, fifth coil; 260, sixth coil; 270, seventh coil;

[0042] 300. Support member; 310. First arm; 311. Insertion portion; 320. Second arm; 321. Second connection portion; 322. Shaft hole mating portion; 323. Notch; 330. Third arm; 331. Block

[0043] 400. Elastic member;

[0044] 500. Cable; 510. Plug

[0045] 600. Hospital bed; 610. Accommodation cavity; 620. Insertion groove; 630. Protrusion; 700. Spinal coil Detailed implementation manners

[0046] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0048] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0049] In this application, unless otherwise clearly defined or limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In this application, unless otherwise clearly defined or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0052] Refer to Figures 1 to 4 As shown in, a breast coil device provided by an embodiment of this application includes a coil support shell 100 and a coil assembly 200. The upper surface of the coil support shell 100 forms a human body support surface 111. The coil support shell 100 is recessed downward from the human body support surface 111 to form two breast accommodation cavities 110, and an observation window 120 communicating with the corresponding breast accommodation cavity 110 is provided on the side of the coil support shell 100.

[0053] Two breast accommodating cavities 110 are arranged side by side, and the coil support housing 100 is provided with an observation window 120 communicating with the corresponding breast accommodating cavity 110 at at least one end along a first direction. Herein, the first direction and the second direction can form a set angle, and the second direction is the height direction of the coil support housing 100. Optionally, the set angle can be any angle such as 90 degrees, 85 degrees, 75 degrees, etc. The coil assembly 200 is disposed within the coil support housing 100, and the coil assembly 200 includes a first coil 210 and a second coil 220. The coil assembly 200 includes two first coils 210 and two second coils 220. Each first coil 210 is respectively disposed on the side surface of the coil support housing 100 and surrounds the outside of the observation window 120. Each second coil 220 respectively surrounds the middle parts of the two breasts and is connected to the first coil 210 at the position of the observation window 120.

[0054] The first coil 210 surrounds the outside of the observation window 120 and forms a loop. The second coil 220 is intermittently connected at the head and tail, and both the head and the tail are connected to the corresponding first coil 210, that is, the second coil 220 together with a part of the first coil 210 forms a loop, and the second coil 220 partially surrounds the outside of the corresponding breast accommodating cavity 110.

[0055] For the above breast coil device, since the observation window 120 communicating with the breast accommodating cavity 110 is provided on the coil support housing 100, after the patient's breast is placed in the breast accommodating cavity 110, it is possible to observe through the observation window 120 whether the breast position has been adjusted to a better position. If the position is not good, it can be adjusted while observing to make it in a better position, so as to optimize the scanning result. Due to the setting of the observation window 120, the coil assembly 200 also needs to be adjusted accordingly to adapt to the new structure with the observation window 120. Specifically, a first coil 210 and a second coil 220 are provided within the coil support housing 100. The second coil 220 is disposed corresponding to the position outside the breast accommodating cavity 110, and the first coil 210 is disposed corresponding to the position outside the observation window 120, so as to ensure that after the observation window 120 is opened, the imaging will not be affected due to the lack of coils in the observation window 120 area. The head and tail ends of the second coil 220 are not connected, but are intermittently arranged and connected to the first coil 210, so as to adapt to the structure at the connection of the breast accommodating cavity 110 and the observation window 120.

[0056] Specifically, the interior of the coil support housing 100 is hollow and forms a hollow sandwich layer, and the coil assembly 200 is disposed within this sandwich layer.

[0057] In the embodiment shown in the drawings, the first direction is perpendicular to the second direction. The first direction is the length direction of the coil support housing 100, that is, the width direction of the hospital bed 600 after the breast coil device is installed on the hospital bed 600 ( Figure 7 ), and the breast accommodating cavity 110 is recessed along the second direction.

[0058] Preferably, in the embodiment shown in the drawings, observation windows 120 are provided at both ends of the coil support housing 100 along the first direction and are communicated with the corresponding breast accommodating cavities 110. In this way, it is convenient to observe and adjust the positions of the mammary glands in the corresponding breast accommodating cavities 110 through the two observation windows 120 respectively.

[0059] Refer to Figure 1 、 Figure 3 and Figure 4 , in some embodiments, the plane where the first coil 210 is located is perpendicular or approximately perpendicular to the first direction, and the plane where the second coil 220 is located is perpendicular or approximately perpendicular to the second direction.

[0060] Specifically, "approximately perpendicular" means that the angle between the two is in the range of 70 degrees to 110 degrees. Preferably, the plane where the first coil 210 is located is perpendicular to the first direction, and the plane where the second coil 220 is located is perpendicular to the second direction. That is, the first coil 210 is vertically arranged, and the second coil 220 is horizontally arranged.

[0061] In the embodiment shown in the drawings, the observation window 120 is rectangular, and correspondingly, the first coil 210 is rectangular. The head end and the tail end of the second coil 220 are respectively connected to two sides of the first coil 210 extending along the second direction. Preferably, the positions of the first coil 210 connected to the head end and the tail end of the second coil 220 are located at the central position of the first coil 210 along the second direction.

[0062] In other embodiments, the observation window 120 can also be set to other shapes, such as circular, oval or polygonal, etc. In the embodiment shown in the drawings, the second coil 220 is annular. Of course, it can also be set to other irregular curves.

[0063] Refer to Figure 1 、 Figure 3 and Figure 4 , in some embodiments, the current direction of the first coil 210 is a closed loop along its extension direction, and the current direction of the second coil 220 is an intermittent loop along its extension direction, and the current of the second coil 220 is shunted into the first coil 210 from one of the connections with the first coil 210, and the two shunted current directions are opposite.

[0064] Specifically, Figure 3 in which I1 represents the current direction of the first coil 210 alone, and I2 represents the current direction of the second coil 220 alone. The current of the second coil 220 flows into the first coil 210 from its end and is shunted into two upward and downward strands. ( Figure 3 In the left side of the figure is the schematic diagram of the current of the first coil 210 alone, in the middle is the schematic diagram of the current of the second coil 220 alone, and on the right side is the schematic diagram of the current of the first coil 210 and the second coil 220 integrated together).

[0065] Referring to Figure 1 and Figure 3 and Figure 4 , in some embodiments, the coil assembly 200 further includes a third coil 230 and a fourth coil 240, which are disposed on the side surface of the coil support housing 100, and the third coil 230 and the fourth coil 240 are respectively disposed on the front and rear sides of the observation window 120.

[0066] Referring to Figure 1 and Figure 3 and Figure 4 , in some embodiments, the coil assembly 200 further includes a third coil 230 and a fourth coil 240. The third coil 230 and the fourth coil 240 are respectively disposed on both sides of the breast accommodation cavity 110 along the third direction, and both the third coil 230 and the fourth coil 240 are in a butterfly shape, wherein the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0067] In the embodiment shown in the drawings, the third direction is the width direction of the coil support housing 100, that is, the length direction of the hospital bed 600 after the breast coil device is installed on the hospital bed 600 ( Figure 7 ). Both the third coil 230 and the fourth coil 240 are in a butterfly shape, that is, an "8" shape, and can be formed by twisting a circular coil. When the two are set to the above shape, the basic requirement that the magnetic field lines of the two are perpendicular to the main magnetic field B0 magnetic field lines of the magnetic resonance device can be satisfied, and at the same time, the coupling between the two and the second coil 220 can be reduced.

[0068] Referring to Figure 1 and Figure 3 and Figure 4 , in some embodiments, the coil assembly 200 further includes a fifth coil 250, and the fifth coil 250 is correspondingly disposed at the position of the breast nipple. The fifth coil 250 is located on one side of the breast accommodation cavity 110 along the second direction, and the fifth coil 250 is in a butterfly shape.

[0069] Specifically, the fifth coil 250 is located below the bottom wall of the breast accommodation cavity 110, and the fifth coil 250 is in a butterfly shape, that is, an "8" shape. By adding the fifth coil 250, the coil arrangement density can be increased, thereby improving the imaging clarity. Setting the fifth coil 250 in a butterfly shape can make the direction of its magnetic field lines perpendicular to the magnetic field lines of the second coil 220, so that the two will not be coupled.

[0070] In addition, all the above-mentioned butterfly coils can be replaced with Figure 5 the deformed form in Figure 5 . The coil in

[0071] Referring to Figures 1 to 4, in some embodiments, the coil assembly 200 further includes at least one sixth coil 260. One end of the coil support shell 100 in the third direction has a recessed area 180 for accommodating the patient's chin. One end of the coil support shell 100 in the second direction is a human body support surface 111 for supporting the patient. The breast receiving cavity 110 is formed by recessing from the human body support surface 111. The sixth coil 260 is disposed in a corner area between the human body support surface 111 and the plane where the recessed area 180 is located.

[0072] Specifically, the top surface of the coil support shell 100 is the human body support surface 111, and the breast receiving cavity 110 is a blind hole recessed downward from the human body support surface 111. The corner area between the human body support surface 111 and the plane where the recessed area 180 is located is an area for contacting the patient's armpit. By disposing the sixth coil 260 here, imaging can be achieved from the armpit angle, making the imaging more comprehensive. In addition, a plurality of seventh coils 270 are further provided below the human body support surface 111, and the seventh coils 270 are correspondingly provided in the areas on the human body support surface 111 other than the breast receiving cavity 110.

[0073] Refer to Figures 7 to 10 , in some embodiments, the breast coil device further includes a support member 300 rotatably connected to the coil support shell 100. The support member 300 has a plug-in portion 311, and the support member 300 can be rotated relative to the coil support shell 100 to a first position ( Figure 11 ) or a second position ( Figure 12 ). When the support member 300 is in the first position, the plug-in portion 311 protrudes outside the coil support shell 100 and is configured to be plugged into the hospital bed 600 to suspend the breast coil device above the hospital bed 600. When the support member 300 is in the second position, the plug-in portion 311 is received into the coil support shell 100, and the breast coil device can at least partially sink into the receiving cavity 610 of the hospital bed 600.

[0074] In the above embodiments, the support member 300 can rotate relative to the coil support housing 100, so that the insertion portion 311 protrudes or retracts relative to the coil support housing 100, thereby being able to adapt to patients of different body types. Specifically, during magnetic resonance scanning, the hospital bed 600 needs to be pushed into the scanning cavity of the magnetic resonance device. Generally, the hospital bed 600 has a concave receiving cavity 610, and a spinal coil 700 is disposed in the receiving cavity 610. For a relatively thin patient, without removing the spinal coil 700, the support member 300 is directly rotated to the first position, and the breast coil device is suspended and supported above the spinal coil 700 by inserting the insertion portion 311 into the hospital bed 600. For a relatively fat patient, after the hospital bed 600 is pushed into the scanning cavity of the magnetic resonance device, the space above the patient's back may be relatively crowded. Therefore, the spinal coil 700 can be removed in advance to vacate the receiving cavity 610 of the hospital bed 600, and then the bottom area of the breast coil device is allowed to sink into the receiving cavity 610, thereby reducing the height of the entire breast coil device, making the space above the patient's back more spacious and less likely to have a cramped feeling, and the patient experience is better.

[0075] Referring to Figure 7 , Figure 8 and Figure 11 , in some embodiments, the insertion portion 311 is an insertion block, and a concave insertion groove 620 is provided at the corresponding position on the hospital bed 600. The insertion block is inserted into the insertion groove 620 to achieve the suspended support of the breast coil device. At the same time, it can also limit the displacement of the breast coil device in the width direction of the hospital bed 600 and ensure the stability of the installation position of the breast coil device. In other embodiments, the insertion portion 311 can also be set as a slot, and correspondingly, an insertion block is provided on the hospital bed 600.

[0076] In some embodiments, two sets of the above-mentioned insertion structures can be provided, and the two sets of structures are symmetrically distributed on both sides of the receiving cavity 610. In this way, the stability of the suspended support of the breast coil device can be increased.

[0077] Referring to Figure 1 , Figure 9 , Figure 10 and Figure 12 , in some embodiments, concave grooves 160 are provided at the bottom of both ends of the coil support housing 100, and a protrusion 630 is provided at the end of the hospital bed 600 along its width direction. When the support member 300 is in the second position, the bottom area of the breast coil device sinks into the receiving cavity 610, and the protrusion 630 extends into the groove 160, thereby enhancing the limit of the breast coil device in the width direction of the hospital bed 600.

[0078] In some embodiments, two sets of the protrusion 630 and the groove 160 can be provided in a matching manner, and the two sets of structures are symmetrically distributed on both sides of the receiving cavity 610.

[0079] Referring toFigures 11 to 13 , in some embodiments, the breast coil device further includes an elastic member 400. The elastic member 400 is connected between the support member 300 and the coil support housing 100, and is used to assist in pulling the support member 300 to rotate between the first position and the second position.

[0080] Specifically, when pulling the support member 300 to rotate from the first position towards the second position, the operator needs to first push the support member 300 counterclockwise through a preset angle. After that, under the pulling force of the resilience of the elastic member 400, the support member 300 will automatically rotate to the second position. Similarly, when pulling the support member 300 to rotate from the second position towards the first position, the operator needs to first push the support member 300 clockwise through a preset angle. After that, under the pulling force of the resilience of the elastic member 400, the support member 300 will automatically rotate to the first position. In this way, the operation can be facilitated and labor-saving.

[0081] Refer to Figures 11 to 13 , in some embodiments, the coil support housing 100 is provided with a first connection portion 130 connected to one end of the elastic member 400, the support member 300 is provided with a second connection portion 321 connected to the other end of the elastic member 400, and an axial hole mating portion 322 that is axially hole-mated with the coil support housing 100. The connection line between the axial hole mating portion 322 and the first connection portion 130 extends along the second direction, and the rotation axis of the support member 300 is perpendicular to the second direction and the first direction; when the support member 300 is in the first position and the second position, the position of the second connection portion 321 is axisymmetric with respect to the connection line.

[0082] Specifically, the support member 300 includes a first arm 310 and a second arm 320. The first arm 310 extends outward from one side of the second arm 320. The aforementioned insertion portion 311 is formed at the end of the first arm 310 facing away from the second arm 320. The second connection portion 321 and the axial hole mating portion 322 are both provided on the second arm 320, and the axial hole mating portion 322 is directly below the first connection portion 130. The axial hole mating portion 322 is a rotating shaft connected to the outside of the second arm 320, and the coil support housing 100 is provided with a rotating shaft hole that is inserted and mated with the rotating shaft. The second connection portion 321 is a pin shaft that extends along the third direction. The first connection portion 130 is a hook. The elastic member 400 is annular, one end of which is suspended and sleeved on the hook, and the other end is sleeved outside the pin shaft and is in a stretched state. In other embodiments, the positions of the rotating shaft and the rotating shaft hole can also be interchanged.

[0083] Furthermore, the support member 300 has a notch 323, and the second connection portion 321 is disposed within the notch 323. When the support member 300 rotates through a preset angle between the first position and the second position, the elastic member 400 jumps over the notch 323 from one side of the axial hole mating portion 322 to the other side of the axial hole mating portion 322.

[0084] Specifically, a notch 323 is formed at one end of the second arm 320 along its length direction, and the second connecting portion 321 is connected within the notch 323. The preset angle is 90 degrees, and the rotation angle of the support member 300 between the first position and the second position is 180 degrees. In the perspective of the attached drawing, when the support member 300 is in the first position, the second connecting portion 321 is located on the left side of the shaft hole mating portion 322. Correspondingly, the bottom end of the elastic member 400 is also located on the left side of the shaft hole mating portion 322. Since the second connecting portion 321 is arranged within the notch 323, it is ensured that the elastic member 400 can jump over the notch 323. When the support member 300 is pushed counterclockwise to rotate by 90 degrees, the elastic member 400 just extends along the second direction. When the support member 300 is pushed counterclockwise to rotate by 90 degrees, that is, when the rotation angle of the support member 300 is greater than 90 degrees, the second connecting portion 321 reaches the right side of the shaft hole mating portion 322, and the bottom end of the elastic member 400 also reaches the right side of the shaft hole mating portion 322. At this time, the stretching degree of the elastic member 400 becomes larger, and under the action of its resilience, it will pull the support member 300 to continue to rotate quickly counterclockwise until it reaches the second position. When the support member 300 rotates from the second position towards the first position, the process is similar to the above, except that the rotation direction is clockwise.

[0085] Referring to Figures 11 to 13 , in some embodiments, the coil support shell 100 has a first limiting portion 141 and a second limiting portion 142 that are respectively arranged on both sides of the connection line. The first limiting portion 141 is used to block the support member 300 when the support member 300 rotates from the second position to the first position, and the second limiting portion 142 is used to block the support member 300 when the support member 300 rotates from the first position to the second position.

[0086] Specifically, when the support member 300 rotates from the second position to the first position, one side of the second arm 320 will abut against the first limiting portion 141, preventing the support member 300 from continuing to rotate. When the support member 300 rotates from the first position to the second position, the other side of the second arm 320 will abut against the second limiting portion 142, preventing the support member 300 from continuing to rotate. In this way, the rotation range of the support member 300 can be restricted.

[0087] Referring to Figures 11 to 13, in some embodiments, on the side of the first limiting portion 141 of the coil support shell 100 away from the second limiting portion 142, a first receiving groove 151 is further provided, and on the side of the second limiting portion 142 away from the first limiting portion 141, a second receiving groove 152 is further provided. The support member 300 further has a third arm 330, and the first arm 310 and the third arm 330 respectively extend outward from both sides of the second arm 320. One end of the third arm 330 away from the second arm 320 has a clamping block 331. When the support member 300 rotates to the first position, the clamping block 331 will extend into the first receiving groove 151 to enhance the limit here. When the support member 300 rotates to the second position, the first arm 310 will extend into the second receiving groove 152 to enhance the limit here.

[0088] Refer to Figure 1 and Figure 6 , in some embodiments, a plug fixing groove 170 is provided on the coil support shell 100, and the plug 510 of the breast coil device can be inserted into the plug fixing groove 170.

[0089] Specifically, the breast coil device has a cable 500 connected to the coil support shell 100, and the end of the cable 500 has a plug 510. After use, the cable 500 can be wound around the outside of the coil support shell 100, and the plug 510 can be inserted into the plug fixing groove 170 for convenient storage.

[0090] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0091] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A breast coil device for use in a magnetic resonance imaging system, characterized in that: The breast coil device comprises: A coil support shell (100) having two breast accommodating cavities (110), and an observation window (120) communicating with the corresponding breast accommodating cavity (110) is provided at at least one end of the coil support shell (100) along a first direction, wherein the first direction forms a set angle with a second direction, and the second direction is a height direction of the coil support shell (100); and A coil assembly (200) is arranged in the coil support shell (100), and the coil assembly (200) comprises a first coil (210) and a second coil (220), wherein the first coil (210) surrounds the outside of the observation window (120), the second coil (220) is discontinuous at both ends and the head and tail ends are both connected to the corresponding first coil (210), and the second coil (220) partially surrounds the outside of the corresponding breast receiving cavity (110).

2. The breast coil device according to claim 1, characterized in that: The coil assembly (200) further comprises a third coil (230) and a fourth coil (240), wherein the third coil (230) and the fourth coil (240) are respectively arranged on both sides of the breast receiving cavity (110) along a third direction, and the third coil (230) and the fourth coil (240) are both butterfly-shaped, wherein the first direction, the second direction and the third direction are perpendicular to each other.

3. The breast coil device according to claim 1, characterized in that: The coil assembly (200) further comprises a fifth coil (250), the fifth coil (250) being located on one side of the breast receiving cavity (110) along the second direction, and the fifth coil (250) being in a butterfly shape.

4. The breast coil device according to claim 1, characterized in that: The coil assembly (200) further comprises at least one sixth coil (260); one end of the coil support shell (100) along the third direction comprises a recessed area (180) for accommodating a patient's chin; one end of the coil support shell (100) along the second direction comprises a human body support surface (111) for carrying a patient; the breast receiving cavity (110) is formed by being recessed from the human body support surface (111); the sixth coil (260) is arranged at a corner area between the human body support surface (111) and a plane where the recessed area (180) is located; wherein the first direction, the second direction and the third direction are perpendicular to each other.

5. The breast coil device according to any one of claims 1 to 4, characterized in that: The breast coil device further comprises a support member (300) rotatably connected to the coil support shell (100), the support member (300) having a plug-in portion (311), and the support member (300) can be rotated to a first position or a second position relative to the coil support shell (100); When the support member (300) is located at the first position, the plug-in portion (311) protrudes outside the coil support shell (100) and is configured to be plugged into a hospital bed (600) so as to support the breast coil device in suspension above the hospital bed (600); When the support member (300) is located at the second position, the plug-in portion (311) is received in the coil support shell (100), and the breast coil device can be at least partially sunk into the accommodating cavity (610) of the hospital bed (600).

6. The breast coil device according to claim 5, characterized in that: The breast coil device further comprises an elastic member (400), wherein the elastic member (400) is connected between the support member (300) and the coil support shell (100), and the elastic member (400) is used to assist in pulling the support member (300) to rotate between the first position and the second position.

7. The breast coil device according to claim 6, characterized in that: The coil support shell (100) is provided with a first connecting portion (130) connected to one end of the elastic member (400), the support member (300) is provided with a second connecting portion (321) connected to the other end of the elastic member (400), and an axial hole matching portion (322) matching with the axial hole of the coil support shell (100), the connecting line between the axial hole matching portion (322) and the first connecting portion (130) extends along the second direction, and the rotation axis of the support member (300) is perpendicular to the second direction and the first direction; when the support member (300) is located at the first position and the second position, the position of the second connecting portion (321) is symmetrical about the connecting line.

8. The breast coil device according to claim 7, characterized in that: The support member (300) has a notch (323), and the second connecting portion (321) is arranged in the notch (323). When the support member (300) rotates through a preset angle between the first position and the second position, the elastic member (400) jumps over the notch (323) from one side of the shaft hole matching portion (322) to reach the other side of the shaft hole matching portion (322).

9. A breast coil device for use in a magnetic resonance imaging system, characterized in that: The breast coil device comprises: A coil support shell (100), the upper surface of which constitutes a human body support surface (111), the coil support shell (100) is recessed downward from the human body support surface (111) into two breast receiving cavities (110), and a side surface of the coil support shell (100) is provided with an observation window (120) communicating with the corresponding breast receiving cavities (110); and A coil assembly (200) is disposed in the coil support shell (100), wherein the coil assembly (200) comprises two first coils (210) and two second coils (220); Each of the first coils (210) is respectively arranged on a side surface of the coil support shell (100) and surrounds the outside of the observation window (120); Each of the second coils (220) surrounds the middle part of the two breasts respectively, and is connected to the first coil (210) at the position of the observation window (120).

10. The breast coil device according to claim 9, characterized in that: The coil assembly (200) further comprises: The third coil (230) and the fourth coil (240) are arranged on the side of the coil support shell (100), and the third coil (230) and the fourth coil (240) are respectively arranged on the front and rear sides of the observation window (120); A fifth coil (250), the fifth coil (250) being arranged corresponding to the position of the breast nipple; Furthermore, the third coil (230), the fourth coil (240) and the fifth coil (250) are all butterfly-shaped.

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