CN114264991A - Mammary gland receiving coil assembly and magnetic resonance imaging equipment - Google Patents
Mammary gland receiving coil assembly and magnetic resonance imaging equipment Download PDFInfo
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- CN114264991A CN114264991A CN202111422868.7A CN202111422868A CN114264991A CN 114264991 A CN114264991 A CN 114264991A CN 202111422868 A CN202111422868 A CN 202111422868A CN 114264991 A CN114264991 A CN 114264991A
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- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 28
- 210000005075 mammary gland Anatomy 0.000 title abstract description 66
- 210000000481 breast Anatomy 0.000 claims description 51
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000003384 imaging method Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 description 14
- 230000004308 accommodation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 201000010759 hypertrophy of breast Diseases 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 208000030270 breast disease Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The invention relates to a mammary gland receiving coil assembly and a magnetic resonance imaging device. The receiving coil assembly for mammary gland includes: a base shell; the cup is arranged on the base shell and comprises a plurality of cup walls which are sequentially arranged along the circumferential direction of the cup to form a containing space, and a coil body is arranged in each cup wall; and the adjusting component is arranged on the base shell and is used for adjusting the radial positions of the plurality of cup walls along the cups. The radial positions of the cup walls along the cups are adjusted through the adjusting assembly, so that the size of the accommodating space enclosed by the cup walls can be adjusted, and the accommodating space can be adapted to the mammary glands with different sizes. Therefore, when not unidimensional mammary gland holds in accommodating space, can press close to with the cup wall of cup better respectively, the coil body in the cup wall can be pressed close to respectively to not unidimensional mammary gland promptly to, when mammary gland receiving coil subassembly is used for carrying out magnetic resonance imaging to the mammary gland of the patient of different mammary gland sizes, imaging quality is better.
Description
Technical Field
The invention relates to the technical field of magnetic resonance coils, in particular to a mammary gland receiving coil assembly and magnetic resonance imaging equipment.
Background
Magnetic resonance imaging is a common way of diagnosing breast diseases. When the breast of the patient is subjected to magnetic resonance imaging, the breast of the patient needs to be accommodated in a cup of a breast receiving coil assembly of the magnetic resonance imaging device, so that a coil body arranged in the cup of the breast receiving coil assembly is covered on the breast of the patient.
The size of the breast varies from patient to patient. In order for the cups of breast receiving coil assemblies to accommodate the breasts of most patients, the cups of current breast receiving coil assemblies are often designed to be larger in size. Therefore, the mammary gland of the patient with the larger size of the mammary gland can be better attached to the cup of the mammary gland receiving coil assembly, so that the mammary gland of the patient with the larger size of the mammary gland can be better attached to the coil body arranged in the cup, and the imaging quality is better when the mammary gland of the patient with the larger size of the mammary gland is subjected to magnetic resonance imaging; and the less patient's of mammary gland size mammary gland then can not press close to the cup of mammary gland receiving coil subassembly better to the less patient's of mammary gland size mammary gland can not press close to the coil body that sets up in the cup better, and then when leading to carrying out magnetic resonance imaging to the less patient's of mammary gland size mammary gland, the imaging quality is relatively poor.
Disclosure of Invention
Based on this, it is necessary to provide a receiving coil assembly for mammary gland and a magnetic resonance imaging apparatus, aiming at the technical problem that when the conventional receiving coil assembly for mammary gland is used for magnetic resonance imaging of mammary glands of patients with smaller mammary gland sizes, the imaging quality is poor.
An embodiment of the present application provides a receiving coil assembly for mammary gland, including:
a base shell;
the cup is arranged on the base shell and comprises a plurality of cup walls, the cup walls are sequentially arranged along the circumferential direction of the cup to form an accommodating space, and a coil body is arranged in each cup wall; and
the adjusting component is arranged on the base shell and used for adjusting the radial positions of the plurality of cup walls along the cups.
Above-mentioned mammary gland receiving coil subassembly, through the radial position of a plurality of walls of cup along the cup of adjusting part regulation, then can adjust the size of the accommodation space that a plurality of walls of cup enclose to accommodation space can adapt to the not unidimensional mammary gland. Therefore, when not unidimensional mammary gland holds in accommodating space, can press close to with the cup wall of cup better respectively, the coil body in the cup wall can be pressed close to respectively to not unidimensional mammary gland promptly to, when mammary gland receiving coil subassembly is used for carrying out magnetic resonance imaging to the mammary gland of the patient of different mammary gland sizes, imaging quality is better.
In one embodiment, the adjusting assembly includes a plurality of adjusting units sequentially arranged along the circumferential direction of the cup, and each adjusting unit is used for driving a corresponding one of the cup walls to move along the radial direction of the cup;
at least one cup wall is arranged between two corresponding cup walls of two adjacent adjusting units at intervals; in the two cup walls and any adjacent two of the at least one cup wall, one of the two cup walls is provided with a linkage structure, the other cup wall is provided with a matching structure, and the linkage structure is matched with the matching structure, so that when one of the two cup walls moves along the radial direction of the cup, the other cup wall is driven to move along the radial direction of the cup.
In one embodiment, the two adjacent cup walls provided with the linkage structure and the matching structure are partially overlapped along the radial direction of the cup, and the linkage structure and the matching structure are positioned in the overlapping area of the two cup walls; linkage structure is linkage post and follows the radial protrusion of cup in corresponding the cup wall, the cooperation structure for the cooperation groove and with the linkage post is followed the circumference sliding fit of cup.
In one embodiment, the same number of cup walls are spaced between two corresponding cup walls of any two adjacent adjusting units.
In one embodiment, the adjusting assembly includes a plurality of adjusting units sequentially arranged along the circumferential direction of the cup, each adjusting unit is connected with a corresponding cup wall and is used for driving the corresponding cup wall to move along the radial direction of the cup; two cup walls corresponding to two adjacent adjusting units are adjacent.
In one embodiment, the adjusting unit includes: the rotating part is rotationally connected with the base shell, and the translation part is connected with the corresponding cup wall; the rotating part drives the translation part to translate when rotating, so that the translation part drives the corresponding cup wall to move along the radial direction of the cup.
In one embodiment, the rotating part is a gear; the adjusting assembly further comprises a gear ring, and the gear is meshed with an inner ring of the gear ring.
In one embodiment, the breast receiving coil assembly comprises two said cups and two said adjustment assemblies, one for each said cup.
In an embodiment, the receiving coil assembly for mammary gland further comprises an adjusting gear, the adjusting gear is rotatably connected with the base shell, and outer rings of the gear rings of the two adjusting assemblies are respectively meshed with the same adjusting gear.
In an embodiment, the adjusting unit further comprises: guide rail and connecting rod, the guide rail set up in the base shell and with translation portion sliding fit, the one end of connecting rod with translation portion rotates to be connected, the other end of connecting rod with rotation portion rotates to be connected and with rotation portion eccentric settings.
An embodiment of the present application further provides a magnetic resonance imaging apparatus, including the breast receiving coil assembly in any one of the above embodiments. According to the mammary gland receiving coil assembly of the magnetic resonance imaging device, the positions of the plurality of cup walls in the radial direction of the cups are adjusted through the adjusting assembly, so that the size of the accommodating space formed by the plurality of cup walls can be adjusted, and the accommodating space can be adapted to mammary glands with different sizes. Therefore, when not unidimensional mammary gland holds in accommodating space, can press close to with the cup wall of cup better respectively, the coil body in the cup wall can be pressed close to respectively to not unidimensional mammary gland promptly to, when mammary gland receiving coil subassembly is used for carrying out magnetic resonance imaging to the mammary gland of the patient of different mammary gland sizes, imaging quality is better.
Drawings
FIG. 1 is a schematic diagram of a breast receiving coil assembly according to an embodiment;
fig. 2 is a schematic view illustrating the accommodating space of the cup of the breast receiving coil assembly in fig. 1 adjusted to a minimum limit;
FIG. 3 is a schematic view of the structure of the regulating unit of FIG. 1;
fig. 4 is a schematic diagram illustrating the accommodating space of the cup of the breast receiving coil assembly in fig. 1 adjusted to the maximum limit;
fig. 5 is a schematic diagram of a variation process of the adjusting unit in fig. 1 in one movement cycle.
The reference numbers illustrate:
a breast receiving coil assembly 100;
a base shell 110;
a cup 120; a housing space 101; a cup wall 121; the cup wall 121 a; the cup wall 121 b; the cup wall 121 c; linkage 1211; a mating structure 1212;
an adjustment unit 131; the adjusting unit 131 a; the adjusting unit 131 b; the adjusting unit 131 d; a rotating section 1311; a translation section 1312; a guide rail 1313; a connecting rod 1314;
a ring gear 132; a ring gear support seat 1321;
the gear 140 is adjusted.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, an embodiment of the present application provides a breast receiving coil assembly 100. The breast receiving coil assembly 100 includes: a base shell 110, a cup 120, and an adjustment assembly.
Specifically, as shown in fig. 1, in the present embodiment, the base shell 110 has a recess, and the cup 120 and the adjustment member are respectively received in the recess of the base shell 110.
The cup 120 includes a plurality of cup walls 121, and the plurality of cup walls 121 are sequentially arranged along a circumferential direction of the cup 120 to enclose the receiving space 101. Specifically, as shown in fig. 1, in the present embodiment, each cup 120 includes six cup walls 121. Of course, the number of cup walls 121 of each cup 120 is not limited to six, but may also be, for example, two, three, four, five, seven, eight, etc. When the breast of the patient is subjected to magnetic resonance imaging, the accommodating space 101 is used for accommodating the breast of the patient. The cup wall 121 has an accommodating space therein, and a coil body (not shown) is disposed in the accommodating space inside the cup wall 121, so that when the breast of the patient is placed in the accommodating space 101, the breast of the patient can be surrounded by the coil body inside the cup wall 121, so as to perform magnetic resonance imaging on the breast of the patient. In addition to the coil body, other devices such as a circuit board of the breast receiving coil assembly 100 may be disposed in the accommodating space of the cup wall 121.
The adjustment assembly is used to adjust the position of the plurality of cup walls 121 in the radial direction of the cup 120. It can be understood that, since the positions of the cup walls 121 along the circumferential direction of the cup 120 are different, the radial direction of the cup 120 corresponding to each cup wall 121 is also different. That is, when the adjusting unit adjusts the positions of the plurality of cup walls 121 in the radial direction of the cup 120, the positions of the plurality of cup walls 121 are adjusted in the radial direction of the respective corresponding cups 120.
If the mammary gland of the patient with the smaller mammary gland size needs to be subjected to magnetic resonance imaging, the cup walls 121 can be adjusted in position inwards along the radial direction of the cup 120 by the adjusting assembly, and the accommodating space 101 enclosed by the cup walls 121 is reduced, so that the accommodating space 101 can be adapted to the mammary gland of the patient with the smaller mammary gland size. Therefore, the mammary gland of the patient with the smaller mammary gland size can be better attached to the cup wall 121, so that the mammary gland can be better attached to the coil body in the cup wall 121, and further, when the mammary gland receiving coil assembly 100 is used for performing magnetic resonance imaging on the mammary gland of the patient with the smaller mammary gland size, the imaging quality is better.
Similarly, if the breast of the patient with a large breast size needs to be subjected to magnetic resonance imaging, the positions of the plurality of cup walls 121 can be adjusted outward along the radial direction of the cup 120 by the adjusting assembly, and the accommodating space 101 enclosed by the plurality of cup walls 121 is enlarged, so that the accommodating space 101 can be adapted to the breast of the patient with a large breast size. Therefore, the mammary gland of the patient with the larger size of the mammary gland can be better attached to the cup wall 121, so that the mammary gland can be better attached to the coil body in the cup wall 121, and further, when the mammary gland receiving coil assembly 100 is used for performing magnetic resonance imaging on the mammary gland of the patient with the larger size of the mammary gland, the imaging quality is better.
In the receiving coil assembly 100 for mammary glands, the adjusting assembly adjusts the positions of the plurality of cup walls 121 along the radial direction of the cup 120, so that the size of the accommodating space 101 enclosed by the plurality of cup walls 121 can be adjusted, and the accommodating space 101 can be adapted to mammary glands with different sizes. Therefore, when the breasts with different sizes are accommodated in the accommodating space 101, the breasts with different sizes can be respectively and better attached to the cup wall 121 of the cup 120, that is, the breasts with different sizes can be respectively and better attached to the coil body in the cup wall 121, so that when the breast receiving coil assembly 100 is used for magnetic resonance imaging of the breasts of patients with different breast sizes, the imaging signal-to-noise ratio is improved, and the imaging quality is better.
Referring to fig. 1 and 2, in an embodiment, the adjusting assembly includes a plurality of adjusting units 131, the plurality of adjusting units 131 are sequentially arranged along a circumferential direction of the cup 120, and each adjusting unit 131 is connected to a corresponding cup wall 121 for driving the corresponding cup wall 121 to move along a radial direction of the cup 120. At least one cup wall 121 is arranged between two corresponding cup walls 121 of two adjacent adjusting units 131. In the two cup walls 121 and any two adjacent cup walls 121 in the at least one spaced cup wall 121, one cup wall 121 is provided with the linkage 1211, and the other cup wall 121 is provided with the matching structure 1212. Through the cooperation of the linkage 1211 and the engagement structure 1212, when one of the two adjacent cup walls 121 moves along the radial direction of the cup 120, the other cup wall 121 is simultaneously moved along the radial direction of the cup 120. Thus, even if the at least one spaced cup wall 121 is not connected with the adjusting unit 131, when two adjacent adjusting units 131 drive the two corresponding cup walls 121 to adjust the radial positions of the cups 120, the at least one spaced cup wall 120 can be driven to adjust the radial positions of the cups 120 at the same time, so that the adjusting units 131 do not need to be configured for each cup wall 121 one by one, the configuration number of the adjusting units 131 is further saved, and the structure of the mammary gland receiving coil assembly 100 is simplified.
In the present embodiment, each adjusting assembly includes three adjusting units 131. Each of the adjusting units 131 is connected to a corresponding one of the cup walls 121, and of the six cup walls 121 of one of the cups 120, three of the cup walls 121 are connected to the adjusting unit 131, and the other three cup walls 121 are not connected to the adjusting unit 131.
As shown in fig. 1 and 2, in the present embodiment, the adjusting units 131a and 131b are two adjacent adjusting units 131. The two cup walls 121 corresponding to the two adjacent adjusting units 131 are the cup wall 121a and the cup wall 121b, respectively. The two cup walls 121 (the cup wall 121a and the cup wall 121b) are separated by a cup wall 121, i.e., a cup wall 121 c. Of the two cup walls 121 (the cup walls 121a and 121b) and any two adjacent cup walls 121 of the spaced cup wall 121 (the cup wall 121c), one cup wall 121 is provided with the linkage 1211, and the other cup wall 121 is provided with the matching structure 1212.
As shown in fig. 1 and fig. 2, of the two cup walls 121 (the cup wall 121a and the cup wall 121b) and the spaced one cup wall 121 (the cup wall 121c), the cup wall 121a and the cup wall 121c are two adjacent cup walls 121, wherein the cup wall 121c is provided with a linkage 1211, and the cup wall 121a is provided with a matching structure 1212. Through the cooperation of the linkage 1211 of the cup wall 121c and the fitting structure 1212 of the cup wall 121a, when the adjustment unit 131a drives the cup wall 121a to move along the radial direction of the cup 120, the cup wall 121c is driven to move along the radial direction of the cup 120, so that the cup wall 121c can adjust the position along the radial direction of the cup 120 along with the cup wall 121a connected with the adjustment unit 131a even though the adjustment unit 131 is not connected.
Similarly, of the two cup walls 121 ( cup walls 121a and 121b) and the spaced one cup wall 121 (cup wall 121c), the cup wall 121b and the cup wall 121c are two adjacent cup walls 121, wherein the cup wall 121c is provided with the linkage 1211, and the cup wall 121b is provided with the matching structure 1212. Through the cooperation of the linkage 1211 of the cup wall 121c and the fitting structure 1212 of the cup wall 121b, when the adjustment unit 131b drives the cup wall 121b to move along the radial direction of the cup 120, the cup wall 121c is driven to move along the radial direction of the cup 120, so that even if the adjustment unit 131 is not connected to the cup wall 121c, the position of the cup wall 121b connected to the adjustment unit 131b can be adjusted along the radial direction of the cup 120.
Therefore, in this embodiment, since one cup wall 121c is spaced between two cup walls 121 (the cup wall 121a and the cup wall 121b) corresponding to two adjacent adjusting units 131, when the two adjacent adjusting units 131 drive the two corresponding cup walls 121 (the cup wall 121a and the cup wall 121b) to move along the radial direction of the cup 120, the two cup walls 121 (the cup wall 121a and the cup wall 121b) respectively drive two circumferential ends of the cup wall 121c to move along the radial direction of the cup 120 at the same time, so that the moving direction of the cup wall 121c when moving along the radial direction of the cup 120 as a whole is more accurate and stable.
In another embodiment, more cup walls, for example, two, three, etc., may be spaced between two cup walls 121 ( cup walls 121a and 121b) corresponding to two adjacent adjusting units 131 (adjusting units 131a and 131 b). Similarly, in the two cup walls 121 corresponding to the two adjacent adjusting units 131 (the adjusting unit 131a and the adjusting unit 131b) and the more spaced cup walls, one cup wall 121 of any two adjacent cup walls 121 is provided with the linkage 1211, and the other cup wall 121 is provided with the matching structure 1212. Through the cooperation of the linkage 1211 and the engagement structure 1212, one of the cup walls 121 is moved along the radial direction of the cup 120, and the other cup wall 121 is moved along the radial direction of the cup 120. In this way, even if the adjusting units 131 are not connected to the two spaced cup walls, when the two adjacent adjusting units 131 (the adjusting units 131a and 131b) drive the two corresponding cup walls 121 (the cup walls 121a and 121b) to adjust the positions along the radial direction of the cup 120, the cup wall 121 adjacent to the two cup walls 121 (the cup walls 121a and 121b) in the spaced cup walls can adjust the positions along the radial direction of the cup 120 along with the two cup walls 121 (the cup walls 121a and 121b) by the cooperation of the linkage structure 1211 and the fitting structure 1212. Accordingly, the position between any adjacent two of the more spaced cup walls is adjusted along the radial direction of the cup 120 by the cooperation of the linkage 1211 and the fitting structure 1212. As can be seen from this, in the present embodiment, since more cup walls are spaced between two cup walls 121 ( cup walls 121a and 121b) corresponding to two adjacent adjusting units 131 (adjusting units 131a and 131b), the number of the adjusting units 131 can be further reduced when the number of the cup walls 121 is constant.
In addition, since the positions of the two adjacent cup walls can be adjusted along the radial direction of the cup 120 by the cooperation of the linkage 1211 and the fitting structure 1212, the relative movement range of the linkage 1211 and the fitting structure 1212 defines the adjustment range of the positions of the two adjacent cup walls 121 along the radial direction of the cup 120, that is, the adjustment range of the receiving space of the cup.
Further, referring to fig. 1, in an embodiment, the linkage structure 1211 is a linkage column, and the fitting structure 1212 is a fitting groove. The linking structure 1211 is partially overlapped with the two adjacent cup walls 121 with the matching structure 1212 along the radial direction of the cup 120. The interlocking post and mating slot are located in the overlapping area of the two cup walls 121. The interlocking columns protrude from the corresponding cup walls 121 in the radial direction of the cups 120, and the extension direction of the fitting grooves is along the circumferential direction of the cups 120. The interlocking posts and the fitting grooves are slidably fitted along the circumferential direction of the cup 120.
Specifically, taking the cup wall 121b and the cup wall 121c as an example, the cup wall 121b is provided with a matching groove, and the cup wall 121c is provided with a linkage column. The cup wall 121b and the cup wall 121c are partially overlapped in the radial direction of the cup 120 (as shown in the area a in fig. 1). The linking column protrudes from the cup wall 121c in the radial direction of the cup 120, and the extending direction of the fitting groove is along the circumferential direction of the cup 120. The cup wall 121b and the cup wall 121c are kept connected by the cooperation of the linkage column and the fitting groove, so that the cup wall 121b and the cup wall 121c can move in the radial direction of the cup 120 at the same time by the cooperation of the linkage column and the fitting groove. Moreover, when the cup walls 121b and 121c move along the radial direction of the cup 120, the cup walls 121b and 121c are relatively close to or far away from each other along the circumferential direction of the cup 120, so that the overlapping area of the cup walls 121b and 121c is increased or decreased. In this embodiment, the interlocking posts and the engaging grooves are slidably engaged along the circumferential direction of the cup 120, so that the wall 121b and the wall 121c are prevented from interfering with each other along the circumferential direction of the cup 120 when moving in the radial direction of the cup 120.
Similarly, the two adjacent cup walls provided with the linkage structure and the matching structure can be kept connected through the matching of the linkage column and the matching groove, so that the cup walls can move along the radial direction of the cups at the same time, and the size of the accommodating space surrounded by the cup walls along the circumferential direction can be adjusted; moreover, the other two adjacent cup walls can be in sliding fit along the circumferential direction of the cup through the linkage column and the matching groove, and the mutual interference along the circumferential direction of the cup when the other two adjacent cup walls move along the radial direction of the cup is avoided.
In this embodiment, since the two adjacent cup walls can keep connecting and move along the radial direction of the cup through the cooperation of the linkage column and the matching groove, the sliding range of the linkage column in the matching groove defines the adjusting range of the two adjacent cup walls when the positions of the two adjacent cup walls are adjusted along the radial direction of the cup, namely the adjusting range of the accommodating space of the cup.
Referring to fig. 1 and 2, in an embodiment, the same number of cup walls 121 are spaced between two cup walls 121 corresponding to any two adjacent adjusting units 131.
Specifically, in the present embodiment, each adjusting assembly includes three adjusting units 131, namely an adjusting unit 131a, an adjusting unit 131b, and an adjusting unit 131 d. The cup wall 121a and the cup wall 121b of the adjacent adjusting unit 131a and the adjusting unit 131b are separated by a cup wall 121 c. Two cup walls corresponding to the adjacent adjusting units 131a and 131d are spaced by one cup wall. Two cup walls of the adjacent adjusting units 131b and 131d are spaced by one cup wall. Because the same number of cup walls 121 are spaced between the two cup walls 121 corresponding to any two adjacent adjusting units 131, when the two adjacent adjusting units 131 drive the two corresponding cup walls 121 to adjust the position along the radial direction of the cup 120, the movement of the two cup walls 121 spaced between the two cup walls 121 corresponding to any two adjacent adjusting units 131 is balanced, so that the movement process of each cup wall 121 of the cup 120 is stable.
In other embodiments, more (e.g., two or three) cup walls may be spaced between two cup walls corresponding to any two adjacent adjusting units, as long as the same number of cup walls are spaced between two cup walls corresponding to any two adjacent adjusting units.
Of course, in still other embodiments, a first number (e.g., one) of cup walls may be spaced between two cup walls corresponding to two adjacent adjusting units in a part of the adjusting units, and a second number (e.g., two) of cup walls may be spaced between two cup walls corresponding to two adjacent adjusting units in another part of the adjusting units, where the first number is different from the second number. The first number and the second number may also be other numbers.
In a further embodiment, the adjusting assembly comprises a plurality of adjusting units, the adjusting units are sequentially arranged along the circumferential direction of the cups, and each adjusting unit is connected with a corresponding cup wall and used for driving the corresponding cup wall to move along the radial direction of the cups. Two walls that two adjacent regulating units correspond are adjacent, so, drive two corresponding walls along the radial adjusting position of cup can through two adjacent regulating units, then need not set up linkage structure and cooperation structure between these two walls. Furthermore, each cup wall of the cup can be provided with one adjusting unit, that is, two cup walls corresponding to any two adjacent adjusting units are adjacent, so that a linkage structure and a matching structure are not required to be arranged on each cup wall of the cup.
In some other embodiments, it may also be that, in a plurality of adjusting units, at least one cup wall is spaced between two cup walls corresponding to two adjacent adjusting units in a part of the adjusting units, and in the two cup walls and any two adjacent cup walls in the at least one spaced cup wall, one of the two cup walls is provided with the linkage structure, and the other cup wall is provided with the matching structure. Through the matching of the linkage structure and the matching structure, when one of the two cup walls moves along the radial direction of the cup, the other cup wall is driven to move along the radial direction of the cup; and two cup walls corresponding to two adjacent adjusting units in the other part of adjusting units are adjacent.
Referring to fig. 2 and 3, in an embodiment, the adjusting unit 131 includes: a rotating part 1311 and a translating part 1312, the rotating part 1311 being rotatably connected to the base housing 110, and the translating part 1312 being connected to the corresponding cup wall 121. The rotation portion 1311 rotates to drive the translation portion 1312 to translate, so that the translation portion 1312 drives the corresponding cup wall 121 to move along the radial direction of the cup 120. In the present embodiment, the rotation of the rotation part 1311 is converted into the linear motion of the translation part 1312, so that the translation part 1312 drives the corresponding cup wall 121 to move along the radial direction of the cup 120.
In other embodiments, the adjusting unit may not employ a rotating portion, for example, a linear motion mechanism such as an electric telescopic rod, an air cylinder, a hydraulic telescopic rod, etc. may directly drive the corresponding cup wall to adjust the position through the linear motion of the adjusting unit.
Referring to fig. 1 to 3, in an embodiment, the rotating portion 1311 is a gear. The adjustment assembly further comprises a gear ring 132, the gear wheel being in engagement with an inner ring of the gear ring 132. Specifically, since the gear is engaged with the inner ring of the ring gear 132, that is, the gear is located radially inside the ring gear 132. By rotating the gear ring 132, the gear can be driven to rotate, so that the rotation of the gear (i.e. the rotating portion 1311) drives the translation portion 1312 to translate, which is convenient for operation.
Especially, in the present embodiment, the number of the adjusting units 131 is plural, and the plural gears of the plural adjusting units 131 are respectively located inside the gear rings 132, and the plural gears are respectively engaged with the gear rings 132, so that, by rotating one gear ring 132, the plural gears can be simultaneously driven to rotate, that is, the plural translation portions 1312 are simultaneously driven to translate, and further, the positions of the plural cup walls 121 can be simultaneously adjusted along the radial direction of the cup 120, so that the operation is convenient and fast when the size of the cup 120 is adjusted.
Further, as shown in fig. 1 and 2, a plurality of ring gear supporting seats 1321 are provided in the base shell 110, which are sequentially arranged in the circumferential direction of the ring gear 132, for supporting the ring gear 132.
Referring to fig. 2 to fig. 3, in an embodiment, the adjusting unit 131 further includes: a rail 1313, and a link 1314. One end of the link 1314 is rotatably connected to the translation portion 1312, and the other end of the link 1314 is rotatably connected to the rotation portion 1311 and eccentrically disposed to the rotation portion 1311. The guide 1313 is provided to the base housing 110 and is slidably fitted with the translation portion 1312.
Since the other end of the connecting rod 1314 is rotatably connected to the rotating portion 1311 and is eccentrically disposed with respect to the rotating portion 1311, when the rotating portion 131 rotates, the other end of the connecting rod 1314 connected to the rotating portion 131 moves along a circular track, and thus the position of the end of the connecting rod 1314 connected to the translating portion 1312 changes simultaneously, and the end of the connecting rod 1314 connected to the translating portion 1312 simultaneously drives the translating portion 1312 to move together. Through the sliding fit of the guide 1313 and the translating part 1312, the translating part 1312 and the end of the connecting rod 1314 connected with the translating part 1312 jointly translate along the guide 1313. This realizes conversion of the rotational motion of the rotating unit 1311 into the linear motion of the translating unit 1312.
In other embodiments, the adjusting unit is not limited to the above-described structure of the guide rail, the link, and the like. For example, the adjustment unit may further comprise a cam mechanism. The cam mechanism can convert the rotary motion of the cam into the translational motion of the driven piece. The rotating part (gear) is coaxially connected with the cam of the cam mechanism, the driven piece of the cam mechanism is used as a translation part of the adjusting unit, and when the rotating part (gear) drives the cam to coaxially rotate, the cam can drive the driven piece (translation part) of the cam mechanism to translate.
In other embodiments, the rotating portion may not be a gear. For example, the rotating part is a nut and the translating part is a lead screw, and the rotary motion can be converted into the translation motion by a lead screw-nut mechanism composed of the nut and the lead screw.
Referring to fig. 2, 4 and 5, in an embodiment, when the rotating portion 1311 rotates continuously in a single direction (clockwise or counterclockwise), the translating portion 1312 is driven to reciprocate inward and outward along the radial direction of the cup 120. Therefore, when adjusting the size of the receiving space 101 of the cup 120, the operator only needs to rotate the rotating portion 1311 continuously in one direction, so that the translating portion 1312 can drive the corresponding cup wall 121 to reciprocate inward and outward along the radial direction of the cup 120, and the size of the receiving space 101 surrounded by the cup walls 121 can be continuously adjusted to be smaller and larger, thereby simplifying the operation.
In this embodiment, the rotating part 1311 rotates one turn in one direction, and the translating part 1312 reciprocates one cycle inward and outward in the radial direction of the cup 120.
Specifically, as shown in fig. 5 (a), the translation portion 1312 is at the limit position of the cup 120 radially outward, and at this time, as shown in fig. 4, the cup wall 121 is at the limit position of the cup 120 radially outward, that is, the accommodation space 101 is adjusted to the maximum limit.
With continued reference to fig. 5, in the process from (a) to (c), the rotating portion 1311 rotates clockwise for half a circle, so that the end of the connecting rod 1314 connected with the rotating portion 1311 moves for half a circle in the circumferential direction, and the end of the connecting rod 1314 connected with the translating portion 1312 and the translating portion 1312 move inward along the radial direction of the cup 120 for a stroke. By the state shown in fig. 5 (c), the translation portion 1312 is at the limit position radially inward of the cup 120, and at this time, correspondingly as in the state shown in fig. 2, the cup wall 121 is at the limit position radially inward of the cup 120, that is, the accommodation space 101 is adjusted to the minimum limit.
After (c) in fig. 5, in the process from (c) to (e), the rotating portion 1311 rotates clockwise for another half of a circle, and the end of the connecting rod 1314 connected to the rotating portion 1311 moves in the circumferential direction for another half of a circle, so that the end of the connecting rod 1314 connected to the translating portion 1312 and the translating portion 1312 move outwards along the radial direction of the cup 120 for a stroke. At this time, as shown in fig. 5 (e), the translation portion 1312 returns to the radial outward limit position of the cup 120, and the cup wall 121 returns to the radial outward limit position of the cup 120, that is, the accommodation space 101 is adjusted to the maximum limit.
Referring to fig. 1 and 2, in one embodiment, the breast receiving coil assembly 100 includes two cups 120 and two adjustment assemblies, one for each cup 120, so that the breast receiving coil assembly 100 can be used for magnetic resonance imaging examination of both breasts of a patient simultaneously.
Referring to fig. 1 and 2 and fig. 4, in an embodiment, the receiving coil assembly 100 further includes an adjusting gear 140, the adjusting gear 140 is rotatably connected to the base housing 110, and outer rings of the gear rings 132 of the two adjusting assemblies are respectively engaged with the same adjusting gear 140. Specifically, adjusting gear 140 sets up between two ring gears 132 of two adjusting part to can make the outer lane of two adjusting part's ring gear 132 respectively with this adjusting gear 140 meshing, and then, only need rotate this adjusting gear 140, then can drive two adjusting part's two ring gears 132 simultaneously and rotate, thereby these two ring gears 132 then can drive the motion of the regulating unit 131 that corresponds separately, and then can adjust two cup 120's size simultaneously, convenient and fast.
Particularly, in the present embodiment, when the rotating portion 1311 rotates continuously in one direction (clockwise or counterclockwise), the translating portion 1312 is driven to reciprocate inward and outward along the radial direction of the cup 120. Therefore, when adjusting the size of the receiving space 101 of the cup 120, the operator only needs to rotate the adjusting gear 140 continuously in one direction, so as to rotate the two ring gears 132 continuously in one direction, and thus the two ring gears 132 drive the corresponding rotating portions 1311 to rotate continuously in one direction, and the translation portion 1312 drives the corresponding cup wall 121 to reciprocate inward and outward along the radial direction of the cup 120, so that the size of the receiving space 101 surrounded by the cup walls 121 can be adjusted continuously and greatly, and the operation is simplified.
An embodiment of the present application further provides a magnetic resonance imaging apparatus, including the breast receiving coil assembly 100 in any of the above embodiments. The receiving coil assembly 100 for mammary gland of the magnetic resonance imaging apparatus adjusts the positions of the plurality of cup walls 121 along the radial direction of the cup 120 through the adjusting assembly, so that the size of the receiving space 101 enclosed by the plurality of cup walls 121 can be adjusted, and the receiving space 101 can be adapted to mammary glands with different sizes. Therefore, when the breasts with different sizes are accommodated in the accommodating space 101, the breasts with different sizes can be respectively and better attached to the cup wall 121 of the cup 120, that is, the breasts with different sizes can be respectively and better attached to the coil body in the cup wall 121, so that when the breast receiving coil assembly 100 is used for magnetic resonance imaging of the breasts of patients with different breast sizes, the imaging signal-to-noise ratio is improved, and the imaging quality is better.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A breast receiving coil assembly comprising:
a base shell (110);
the cup (120) is arranged on the base shell (110), the cup (120) comprises a plurality of cup walls (121), the cup walls (121) are sequentially arranged along the circumferential direction of the cup (120) to form a containing space (101) in a surrounding mode, and a coil body is arranged inside the cup walls (121); and
an adjusting assembly provided to the base shell (110), the adjusting assembly being used for adjusting a position of the plurality of cup walls (121) along a radial direction of the cup (120).
2. The breast receiving coil assembly of claim 1,
the adjusting assembly comprises a plurality of adjusting units (131) which are sequentially arranged along the circumferential direction of the cup (120), and each adjusting unit (131) is used for driving a corresponding cup wall (121) to move along the radial direction of the cup (120);
at least one cup wall (121) is arranged between two corresponding cup walls (121) of two adjacent adjusting units (131); in the two cup walls (121) and any two adjacent cup walls (121) in the at least one cup wall (121), one of the two cup walls (121) is provided with a linkage structure (1211), the other cup wall (121) is provided with a matching structure (1212), and the linkage structure (1211) is matched with the matching structure (1212) to enable one of the two cup walls (121) to move along the radial direction of the cup (120) and drive the other cup wall (121) to move along the radial direction of the cup (120).
3. The breast receiving coil assembly according to claim 2, wherein the linkage structure (1211) is a linkage post and protrudes from the corresponding cup wall (121) in a radial direction of the cup (120), and the engagement structure (1212) is a fitting groove and is slidably fitted with the linkage post in a circumferential direction of the cup (120).
4. The breast receiving coil assembly according to claim 2, wherein the same number of cup walls (121) are spaced between two corresponding cup walls (121) of any two adjacent adjusting units (131).
5. The breast receiving coil assembly according to any one of claims 2 to 4, wherein the adjustment unit (131) comprises: a rotating part (1311) and a translating part (1312), the rotating part (1311) being rotationally connected with the base housing (110), the translating part (1312) being connected with the corresponding cup wall (121); the rotating part (1311) drives the translating part (1312) to translate when rotating, so that the translating part (1312) drives the corresponding cup wall (121) to move along the radial direction of the cup (120).
6. The breast receiving coil assembly according to claim 5, wherein the rotating part (1311) is a gear; the adjustment assembly further comprises a gear ring (132), the gear being in mesh with an inner ring of the gear ring (132).
7. The breast receiving coil assembly of claim 6, comprising two of the cups (120) and two of the adjustment assemblies, one for each cup (120).
8. The breast receiving coil assembly according to claim 7, further comprising an adjusting gear (140), wherein the adjusting gear (140) is rotatably connected with the base housing (110), and outer rings of the gear rings (132) of the two adjusting assemblies are respectively meshed with the same adjusting gear (140).
9. The breast receiving coil assembly according to claim 5, wherein the adjustment unit (131) further comprises: the guide rail (1313) is arranged on the base shell (110) and is in sliding fit with the translation part (1312), one end of the connecting rod (1314) is rotatably connected with the translation part (1312), and the other end of the connecting rod (1314) is rotatably connected with the rotation part (1311) and is eccentrically arranged with the rotation part (1311).
10. A magnetic resonance imaging apparatus comprising a breast receiving coil assembly as claimed in any one of claims 1 to 9.
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| CN202111422868.7A CN114264991B (en) | 2021-11-26 | 2021-11-26 | Mammary gland receiving coil assembly and magnetic resonance imaging equipment |
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| CN202111422868.7A CN114264991B (en) | 2021-11-26 | 2021-11-26 | Mammary gland receiving coil assembly and magnetic resonance imaging equipment |
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