CN211928146U - Coil support and magnetic resonance imaging equipment - Google Patents

Abstract

The utility model relates to a coil support and magnetic resonance imaging equipment. The coil support has a plurality of local coils for magnetic resonance imaging. A coil support having a plurality of local coils for magnetic resonance imaging comprises a plurality of interconnected support material layers, wherein the local coils are arranged at least partially between surfaces of pairs of the support material layers. The magnetic resonance imaging device is provided with the coil support.

Description

Coil support and magnetic resonance imaging equipment

Technical Field

The utility model relates to a coil support, it has a plurality of local coils that are used for magnetic resonance imaging. Furthermore, the utility model discloses still relate to a magnetic resonance imaging equipment.

Background

In magnetic resonance imaging, it is often desirable to use local coils, which are relatively close to the body of the patient to be examined, for receiving and/or transmitting high-frequency signals. Local coils are described, for example, in documents DE 102015218749 a1, DE 102013216861B 4, DE 102012202062B 4 and DE 102011079564 a 1.

It is particularly advantageous here that local coils arranged below the patient can also be used. If imaging is performed, for example, in the region of the spine, the respective local coil is arranged in the lower region of the patient's body and relatively close to the patient's body. The problem here is that in some tables a very narrow installation space is provided only below the table. A similar problem is that transport solutions should be used, in which the patient is supported, for example, on a transport plate. Standard coils for acquiring images in the region of the spinal column cannot be used here, since due to the geometry of such coils there is insufficient structural space. Furthermore, such coils typically use direct connections, which are not typically available in use of the transfer system.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to provide a coil support of a smaller structure, which has a plurality of local coils, and which is particularly suitable for imaging in the spinal region even when using a transfer system. In this case, an advantageous and simple structure is to be achieved.

The object is achieved according to the invention by a coil carrier having a plurality of local coils for magnetic resonance imaging, comprising a plurality of interconnected carrier material layers, wherein the local coils are arranged at least partially between the surfaces of the pairs of carrier material layers.

In the present invention, it is known that, instead of the complex shapes that are usually used and that can be produced, for example, by injection molding, the coil carrier is constructed from layered carrier material, wherein the local coils and optionally further components as described below can be inserted between the layers, as a result of which an advantageous and compact construction of the coil carrier can be achieved. Thus, sufficient protection and better operability of the local coil can be achieved with lower costs and lower installation space. In the present invention, all local coils of the coil support may be arranged between the surfaces of the same coil pair. However, the local coil can only be arranged partially and the remaining local coils can be arranged, for example, between the surfaces of the further layer pairs or elsewhere.

As will be explained in more detail below, a relatively simple production process can be achieved, and the coil carrier can be easily adapted to the specific task. It is thereby possible to keep the manufacturing and development costs of the coil carrier as low as possible and nevertheless to achieve the properties of the coil that are advantageous for imaging in the region of the spine, the so-called "spine coil", such as load-bearing capacity and antimicrobial and detergent resistance. For the development of conventional coils, significantly lower tool costs are incurred, since, for example, injection molding tools can be dispensed with. Development time can be reduced and structural changes can be quickly implemented. Inexpensive different coil variants with variable antenna configuration, number of channels and/or circuit distribution can be formed from the base housing.

By means of the layered construction, a flat and loadable surface can be achieved in a simple manner, so that, for example, a patient transfer device can be realized in that the transfer plate itself bears on the coil support. The components of the coil support can be matched such that the maximum weight of the patient need not be limited.

By means of the layer structure of the coil, the desired safety distance between the patient and the local coil can be easily achieved without unnecessarily large spacings. The local coil can be spaced apart from the patient, for example, by a single layer of stent material, the thickness of which can be selected as required.

The coil material may be a foam material, in particular a foam plastic. By using a foam material a low self weight is achieved, whereby the handling of the coil by the user is simplified.

The layer of scaffold material may preferably be constituted by a rigid foam board. In addition to the weight advantages already mentioned, a simple handling of the layers is also possible, so that, as will be explained later, a construction space for the local coil or the further component is easily available. Furthermore, the rigid foam can be very moisture-resistant, so that damage to the coil support, the partial coil or other components can also be avoided if, for example, a bonded rigid foam plate is used, even when a relatively large amount of liquid, for example more than 200ml, is poured onto the coil support or is located on a table or other support surface for the coil support.

Furthermore, the construction of the coil support from a foam structure achieves a lower weakening of the PET than injection molded parts, so that the structure is also well suited for combined imaging of magnetic resonance imaging devices and PET. It is advantageous here to avoid the difficult support structures for the antennas and the wiring to the greatest possible extent, which can be implemented easily by means of a layered structure.

At least a part of the outer surface of the coil carrier, in particular the entire part of the outer surface of the carrier material, can be formed by thermal deformation of the foam material for closing the open pores. If the foam material, in particular the rigid foam, is at a sufficient temperature, in particular when pressure is applied to the surface, the foam is locally eliminated, so that a smooth and sealed surface is achieved. Thereby, a better cleanability of the surface, a higher liquid tightness and furthermore an improved stability are achieved. Thermal deformation also results in or can be used to round sharp edges and corners and to achieve a larger radius of curvature. Advantageously, the coil support is also used in magnetic resonance positron emission tomography imaging.

At least one electronic component for operating the local coil and/or a connecting cable for contacting the at least one local coil and/or the at least one electronic component can be arranged between the surfaces of the layer pairs or between the surfaces of at least one further layer pair of the layers of the carrier material. In this case, the electronic components and/or the connection cables can be arranged at a distance from the patient, in particular further apart, i.e. in the gaps between the layers, the distance from the gap between the layers provided with the electronic components and/or the connection cables to the patient being greater than the distance from the gap between the layers provided with the local coils to the patient. In this case, the side facing the patient is concerned, on the basis of which the coil support is arranged such that a certain side faces the patient during operation. This is often the case because a defined arrangement of the local coils relative to the patient is to be achieved.

The further layer pair may consist of a completely different layer than the layer pair. However, additional pairs of layers may also include layers of the pair.

The electronic component or at least one of the electronic components may be a coaxial choke. Additionally or alternatively, filters, resonant circuit components, frequency tuning components for local coils or the like can also be used as electronic components. The integration of the coaxial choke in the material of the carrier can in particular improve the interference resistance, since the coaxial choke can be arranged closer to the local coil and also reduce the installation space consumption when using the coil carrier.

The surface of the layer pair and/or of the further layer pair may have a recess which at least partially accommodates the local coil or the electronic component or the connection cable. In addition or alternatively, the intermediate layer of carrier material arranged between the layers of the layer pair can have a through-opening which at least partially accommodates the local coil or an electronic component or a connecting lead. The layers of the layer pair may in particular contact one another outside the region of the component, and the intermediate layer may fill the space between the layers of the layer pair in the region outside the component. A particularly stable construction of the coil support is thereby achieved in a very simple manner.

The recess can in particular accommodate the local coil or an electronic component or a connecting lead together with a further recess of the surface of the other layer or of a further pair of layers of some layers. This may be used to hold the component in a defined position relative to both layers of a layer pair.

The recess and/or a further recess may be milled into the respective surface and/or a through-hole may be milled into the intermediate layer. The recesses or through-holes can be seen on the surface structure in the milled area on the coil carrier according to the invention. The shape of the recess or the through-hole can be specified with little effort and high accuracy by milling the recess or the through-hole.

At least one of the carrier material layers can have projections which engage in recesses, in particular mirror image-identical recesses, of the adjacent carrier material layer. One of the layers may for example have one or more pins and the adjacent layer has a recess for receiving the pin. The layers are prevented from slipping off of each other by the co-action of the protrusions and the grooves. In particular, pairs of projections or recesses which prevent the layer from twisting can be used. This is only important when manufacturing the coil support, for example when the layers are bonded to each other. It is also possible, however, for the layers to be held together, for example by a housing, wherein the housing and the projections and recesses can in this case interact in order to prevent the layers from slipping off from one another and in particular from the partial coils and the electronic components and connecting leads which are fixed by the layers.

The layers of scaffold material may be bonded to each other. Thereby, the components held by the layers can be reliably fixed.

The local coil or the electronic component or the connecting lead can be held by the carrier material in such a way that it cannot be removed from the carrier material without damaging the carrier material. The component can be held reliably in defined positions with low technical effort. Furthermore, for example, a particularly good seal against liquids can be achieved. New scaffold materials, such as rigid foam, are relatively advantageous so that no breakage-free maintainability is required.

The coil carrier can have a connector, by means of which a connecting cable for connecting the cable coil carrier to the magnetic resonance device can be connected to the local coil. The corresponding connecting cable is moved relatively often during plugging and can be damaged relatively easily due to wear or incorrect handling. In particular, if the coil carrier is not serviceable as described without damaging the carrier material, the connecting cable can be advantageously replaced.

The coil carrier can be coupled to the magnetic resonance apparatus or to a control device of the magnetic resonance apparatus by means of a plug-in connection, in particular manually.

The carrier material may be partially or completely surrounded by a shell and/or a membrane. This can further improve the protection of the components of the coil support. The film can be welded, for example, in order to hermetically close the interior of the coil carrier.

The film may be applied to the stent material by vacuum or shrink fitting.

The carrier material may be surrounded by a cover which is formed partly by the membrane and partly by a cover or lid which is harder than the membrane. For maintenance, the cover or lid can be removed and/or support certain components, for which maintenance is particularly important, i.e. certain components can be accessed, in particular without damaging the material of the support.

For example, connectors for connecting the local coil to a magnetic resonance device and/or electronic components for operating the local coil can be fastened to the cover or lid. The connecting element can be in particular the described plug connector. The cover or lid may in particular be made of a material which disturbs the magnetic resonance imaging as little as possible. Such materials are also referred to as materials suitable for magnetic resonance.

The cover or lid can be separated from the support material without damaging the support material in order to replace or maintain parts of the local coil. Such a component can be a connector or a plug-in connector, an electronic component, i.e. for example a coaxial choke, a connecting lead, a local coil or a stack of entire carrier materials in which the sub-components are arranged.

The side of the coil support facing the patient during use of the coil support may be formed by a cover plate which is stiffer and/or harder than the support material and/or than a film which surrounds the support material at least in sections. Advantageously, the side of the coil support facing the patient is particularly stable, since the coil support can be loaded by the patient on one side and the transfer plate can be guided by the coil support on the other side.

The coil carrier may have a groove-shaped housing in which a carrier material is accommodated. The open side can be covered by a cover plate, thermally deformed or covered with a film. The open side can also face away from the patient, so that no special protection is required for this side.

The outer surface of the coil support may have a flat surface in the stacking direction of the support material layers. The coil carrier can thus be a particularly flat structure and be passed over by a transfer plate, for example.

All or at least one of the layers of scaffold material may have at least one curved surface. By using curved surfaces of all layers, a coil carrier which is curved overall can be realized with low technical effort. For example, it may be advantageous to implement the general shape of a spine coil. The respective curved surface can be used, for example, to achieve a defined surface structure of the coil carrier by using a carrier material layer having a flat surface and a curved surface.

An elastic layer made of a material different from the carrier material can be arranged on at least one side of the surface of the carrier material layers stacked in the stacking direction. The stent material is in particular substantially rigid. It is advantageous, for example, if the patient lies directly on the coil support. The patient comfort can be increased by the elastic layer.

Except according to the utility model discloses a coil support, the utility model relates to a magnetic resonance imaging equipment, it has according to the utility model discloses a coil support. The structure of a magnetic resonance imaging apparatus has been known for a long time and is therefore not shown in detail. The coil carrier can be arranged in particular in a region below a transfer plate of the magnetic resonance imaging device or on or below a table for supporting the patient.

Drawings

Further advantages and details of the invention are obtained from the following embodiments and the attached figures. In the drawings:

figure 1 shows an embodiment of a magnetic resonance imaging apparatus according to the invention,

figure 2 shows an embodiment of a coil support according to the invention,

FIG. 3 shows an exploded view of the coil support shown in FIG. 2, an

Fig. 4-6 show further embodiments of coil supports according to the invention.

Detailed Description

Fig. 1 shows a magnetic resonance imaging apparatus 25 which can be used for acquiring image data of a patient 26, i.e. for carrying out magnetic resonance imaging. The basic structure of a magnetic resonance imaging apparatus is known and therefore need not be described in detail. During imaging, a patient 26 is supported by an examination table 28. In order to be able to easily transfer the patient 26 within the magnetic resonance imaging apparatus 25 or between different imaging modalities, the patient 26 can be arranged on a transfer plate 27, which in turn can be arranged on the examination table 28.

In order to achieve high-quality imaging, local coils are advantageously used for receiving high-frequency signals or for transmitting high-frequency signals, which are arranged close to the region of the patient 26 to be examined. If, for example, the spine of a patient 26 is to be imaged, a coil support 1 can be used, which is arranged close to the region to be examined. The coil carrier 1 can be connected to a control device 24 of a magnetic resonance imaging device 25, which is only schematically illustrated here, by means of a connection device 23, for example a plug to be plugged in manually.

The arrangement of the local coil 1 shown and further possible arrangements for imaging in the region of the spinal column of the patient 26, for example between the patient 26 and the transport plate 27 or under the examination table 28, impose very high requirements on the coil support 1. The coil support 1 should therefore have a high degree of stability, for example, in order to support the patient 26 directly or across the coil support 1 via the transfer plate 27. Furthermore, the coil carrier 1 is preferably as liquid-tight as possible. At the same time, however, a very thin construction of the coil support 1 is achieved, since there is generally less installation space in the illustrated region below the patient 26. Therefore, especially when using the transfer plate 27 and the associated transfer system, a very small coil carrier 1 needs to be constructed.

Fig. 2 shows a schematic illustration of a possible construction for such a coil support 1. The coil carrier shown in fig. 2 is relatively short here and comprises only four local coils 2 in the longitudinal direction. This simplified illustration is shown for reasons of view. Of course, longer coil supports 1 can easily be constructed with a greater number of local coils 2 according to the same principles as described precisely below.

The coil support 1 is formed by a plurality of interconnected support material layers 3. The local coil 2 is arranged here between the surfaces of the layer pair 5 of the layer 3 of carrier material. This construction is explained in detail with reference to fig. 3, which fig. 3 shows an exploded view of the coil support 1 shown in fig. 2. The surfaces 10, 12 of the layer pairs 5 each have a recess 11, 13, wherein the respective recess 11, 13 of a pair each jointly accommodates the local coil 2. The layers of the layer pair 5 can be adhesively bonded to one another in order to permanently hold the local coil 2.

In the coil carrier 1, electronic components, in particular coaxial chokes, are also integrated in the layer pairs 6, and connection lines 9 for connecting the local coil 2 to a control device 24 via the electronic components 7 and the connecting elements 23 are integrated in the layer pairs 8. The electronic components 7 are accommodated by a pair of recesses 15, 17 on the surfaces 14, 16 of the layers of the layer pair 6, respectively, and the connection leads 9 are accommodated by recesses 19, 21 on the surfaces 18, 20 of the layers 3 of the layer pair 8. The layers of the layer pairs 6 and 8, respectively, can also be bonded to one another.

The recesses 11, 13, 15, 17, 19, 21 can be opened in the layer of scaffold material 3 by milling. This makes it possible to achieve simple production and flexible expansion of the coil support 1 and flexible adaptation to the configuration of the coil support 1.

The carrier material layer 3 is formed, for example, by a hard plastic foam plate, i.e. a foam material. A lower weight and still a higher stability of the coil carrier 1 are thereby achieved. Furthermore, the individual carrier material layers 3 can be machined relatively simply, so that the recesses 11, 13, 15, 17, 19, 21 can be opened in the carrier material layers 3 by milling which is simple and advantageous to implement.

In order to be able to clean the coil support 1 simply, it is advantageous if the outer surface 4 of the coil support 1 is smooth. The liquid-tightness and stability of the coil support 1 can be improved by thermally deforming the outer surface 4 of the coil support 1 in order to close the pores of the foam material, i.e. the hard plastic foam board. Furthermore, thermal deformation is also advantageous, since a suitably large bending radius is thereby achieved, i.e. in particular without sharp edges and corners, which increases the suitability of the coil support 1 for MR-PET (magnetic resonance positron emission tomography) imaging.

As is schematically shown in fig. 2, an elastic layer 29, which is made of a different material than the carrier material 3, for example rubber or an elastomer, is arranged on the stack 30 made of the layers 3. Advantageously, the patient 26 should lie directly on the coil support 1 in order to increase the comfort of the patient or to further increase the stability of the coil support 1, so that the transfer plate 27 can be moved directly on the coil support 1, for example.

If the layers of carrier material 3 are bonded to each other as described above, the components held between the layers of carrier material 3 cannot be removed from the layers of carrier material 3 without damaging the carrier material. This is advantageous on the one hand, since the respective components are thus particularly well protected from environmental influences. It may be advantageous, however, if the connecting cable 49 for connection to the connecting element 23 is not integrally formed with the integrated connecting line 9, but rather the two partial lines are connected by the plug connection 22. This is advantageous because the connecting cable 49 may wear out more easily than further components of the coil support 1 and may therefore have to be replaced more often.

Fig. 4 shows a further embodiment of a coil support 31, in which a stack 30 of support material layers 3 has a local coil 2, electronic components 7 and connecting leads 9 arranged therein, such a stack 30 may correspond to the stack 30 described with reference to fig. 2 and 3.

In order to further increase the stability of the coil carrier 31, the stack 30 is accommodated in a housing 32 such that the stack 30 is enclosed on all sides. The housing 32 is formed in the exemplary embodiment shown by a trough-shaped housing 33, the trough-shaped housing 33 being covered by a cover 34. The housing 33 in the form of a slot can be made of a plastic material or another magnetic resonance-compatible material, for example, by deep drawing. The cover plate 34 can be screwed or glued to the channel-shaped housing 33, for example by means of screws. In the exemplary embodiment shown, the cover 34 is arranged on the upper side or on the patient-facing side of the coil carrier 31. This may simplify access to the stack 30 for maintenance purposes. However, the entry of, for example, liquid can be better prevented if the trough-shaped housing 33 is placed as a hood on the stack 30 from above and is optionally closed off on the bottom side by the cover plate 34. The improved stability of the coil support 31 achieved can be advantageous when, for example, the transfer plate 27 is guided directly on the upper surface of the coil support 31 or when it is expected that large amounts of liquid enter the area of the coil support 31.

In principle, it is possible to protect the stack 30 on only one side, in particular on its upper side, by a cover plate 34, and to dispense with the trough-shaped housing 33. A better protection of the stack 30 can thereby be achieved at least with respect to the upper side, i.e. the side facing the patient 26 or the transfer plate 27. Alternatively, only the housing 33 having a groove shape may be used. But in this case is preferably placed on the stack 30 from above. One or more of the sides of the stack 30 that remain open may be thermally deformed as described in fig. 2 or a thin film may be used to close the remaining sides.

Fig. 5 shows a further possibility, as the coil carrier 38 can be protected against environmental influences. In this case, a cover 35 can be formed, for example, on the stack 30 of layers 3 made of the carrier material shown in fig. 4 (stack shown in fig. 2 and 3), which cover 35 has, for example, a certain elasticity and is positively locked on the stack 30. The cover 35 is preferably separable from the stack 30 without damaging the stack. At least a part of an electronic component 37 for operating the local coil, for example a coaxial choke, can be arranged on the cover 35. Thereby, the maintainability of the coil support 36 is improved, since the stack 30 and the electronic components 37 can be replaced and maintained independently of each other.

The exposed surfaces of the stack 30 may be protected in a manner that the thin film 36 is disposed around the exposed surfaces. The film 36 may be shrink fit or vacuum pulled on the stack 30 to fit tightly against the stack 30. The membrane may be attached to the lid 35 by a weld 50 or otherwise to seal the interior space of the membrane 36. To service the coil support 38, the membrane 36 may be removed or destroyed and the cover 35 may then be removed from the stack 30. After the cover 35 is reattached, a new film 36 may be applied. In order to maintain the coil carrier 38, only the membrane 36 therefore generally has to be replaced, so that maintenance can be carried out advantageously and resource-effectively.

Fig. 6 shows a further embodiment of a coil support 39. Five layers of scaffold material 40 to 44 are used here. The layers of standoff material 40 and 44 are pure cover layers that do not support electronic components. The carrier material layer 42 is also an intermediate layer that supports the electronic components. The local coil is embedded in a carrier material layer 41 and the electronic components 7 used for operating the local coil 2 are embedded in a carrier material layer 43. To accommodate the local coil, recesses 45 are milled into the layer of scaffold material 41 on both sides. And the intermediate layer 43 also has a through-hole that accommodates the electronic component 7. Furthermore, a large part of the connection lines, not shown, is guided in the carrier material layer 43 for contacting the electronic components 7 or the local coil 2.

To secure the different layers of scaffold material 40 to 44 against relative movement or rotation, the layers of scaffold material 41 and 43 have protrusions 47 and the layers of scaffold material 40, 42 and 44 have mirror image identical depressions.

The coil support 39 can be used directly in the state shown, for example by the layers of support material 40 to 44 being glued or otherwise fixed against one another and preferably closing the surfaces by thermal deformation, as described in fig. 2. Alternatively, however, it is also possible to provide an additional housing 32 or at least one groove-shaped housing 33 and a cover 34 for the housing 33, as shown in fig. 4, or to achieve a closure by means of a cover 35 and/or a film 36, as shown in fig. 5. It is possible here that the layers of carrier material 40 to 44 are already pressed together sufficiently in the height direction by the housing 32, the cover 35 and/or the film 36 used, so that gluing or further fixing of the layers of carrier material 40 to 44 to one another can be dispensed with. This simplifies the maintenance of the coil carrier 39, since the local coil 2, the electronic components 7 and the connecting leads, not shown, can be accessed without damaging the carrier material.

While the invention has been particularly shown and described with reference to a preferred embodiment, it is not intended to be limited to the disclosed embodiment, and other modifications can be devised by those skilled in the art without departing from the scope of the invention.

Claims (26)

1. A coil support with a plurality of local coils (2) for magnetic resonance imaging, characterized in that the coil support (1, 31, 38, 39) comprises a plurality of interconnected support material layers (3, 40-44), wherein the local coils (2) are arranged at least partially between surfaces (10, 12) of layer pairs (5) of support material layers (3, 40-44).

2. The coil support according to claim 1, wherein the support material is a foam material.

3. Coil support according to claim 2, characterized in that the support material layer (3, 40-44) is formed by a rigid foam plate.

4. A coil support according to claim 2 or 3, characterized in that at least a part of the outer surface (4) of the coil support (1, 31, 38, 39) is formed by thermal deformation of a foam material for closing the open pores.

5. A coil support according to claim 2 or 3, characterized in that the entire part of the outer surface (4) of the coil support (1, 31, 38, 39) made of support material is formed by thermal deformation of the foam material for closing the open pores.

6. Coil support according to one of claims 1 to 3, characterized in that at least one electronic component (7) for operating the local coil (2) and/or a connecting line (9) for contacting at least one local coil (2) and/or at least one electronic component (7) is arranged between the surfaces (10, 12) of the layer pairs (5) or between the surfaces (14, 16, 18, 19) of at least one further layer pair (6, 8) of the support material layers (3, 40-44).

7. Coil support according to claim 6, characterized in that at least one of the electronic components (7) is a coaxial choke.

8. Coil support according to claim 6, characterized in that the surfaces (10, 12, 14, 16, 18, 20) of the layers (13, 40-44) of the layer pair (5) and/or of the further layer pair (6, 8) have recesses (11, 15, 19, 45) which at least partially accommodate the local coil (2) or the electronic component (7) or the connecting lead (9) and/or an intermediate layer (43) of support material arranged between the layers (42, 44) of the layer pair has a through-opening (46) which at least partially accommodates the local coil (2) or the electronic component (7) or the connecting lead (9).

9. Coil support according to claim 8, characterized in that the recesses (11, 15, 19) accommodate the local coils (2) or electronic components (7) or connecting leads (9) together with further recesses (13, 17, 21) of the surface (12, 16, 20) of another layer (3) or further recesses (13, 17, 21) of the surfaces (12, 16, 20) of further layer pairs (5, 6, 8) of some layers (3).

10. Coil support according to claim 8, characterized in that the recesses (11, 15, 19, 45) and/or further recesses (13, 17, 21) are milled into the respective surface (10, 12, 14, 16, 18, 20) and/or through-holes (46) are milled into the intermediate layer (43).

11. Coil support according to one of claims 1 to 3, characterized in that at least one of the support material layers (41, 43) has a projection (47) which engages in a recess (48) of an adjacent support material layer (40, 42, 44).

12. Coil support according to claim 11, characterized in that the protrusions are embedded in mirror-image identical recesses (48) of adjacent layers (40, 42, 44) of support material.

13. A coil support according to any one of claims 1 to 3, characterized in that the layers (3, 40-44) of support material are bonded to each other.

14. Coil support according to claim 6, characterized in that the local coil (2) and/or the electronic component (7) and/or the connection lead (9) are held by a support material such that the local coil (2) and/or the electronic component (7) and/or the connection lead (9) cannot be removed from the support material without damaging the support material.

15. Coil support according to one of claims 1 to 3, characterized in that the coil support has a connector (22) by means of which a connecting cable (49) for connecting the cable coil support (1, 31, 38, 39) to the magnetic resonance device (25) can be coupled to the local coil (2).

16. A coil support according to one of claims 1 to 3, characterized in that the support material is partially or completely surrounded by a casing (32, 33) and/or a membrane (36).

17. Coil support according to claim 16, characterized in that the film (36) is applied to the support material by means of vacuum or shrink fit.

18. A coil support according to one of claims 1 to 3, characterized in that the support material is surrounded by a cover which is partly formed by the membrane (36) and partly by a cover or lid (35) which is harder than the membrane (36).

19. Coil support according to claim 18, characterized in that connectors are fastened to the cover or lid (35) for connecting the local coil (2) to the magnetic resonance apparatus (1) and/or to electronic components (37) for operating the local coil (2).

20. Coil support according to claim 18, characterized in that the cover or lid (35) can be separated from the support material without damaging the support material in order to replace or maintain parts of the coil support (1, 31, 38, 39).

21. Coil support according to one of claims 1 to 3, characterized in that the side of the coil support (31) facing the patient when the coil support is in use is formed by a cover plate (34) which is stiffer and/or harder than the support material and/or than a film which surrounds the support material at least in sections.

22. A coil support according to one of claims 1 to 3, characterized in that the coil support has a groove-shaped housing (33) in which the support material is accommodated.

23. A coil support according to one of claims 1 to 3, characterized in that the outer surface (4) of the coil support (1, 31, 38, 39) has a flat surface in the stacking direction of the support material layers (3, 40-44).

24. A coil support according to any one of claims 1 to 3, wherein all or at least one of the layers of support material has at least one curved surface.

25. Coil support according to one of claims 1 to 3, wherein an elastic layer (29) of a material different from the support material is arranged on the surface of the stack (30) of support material layers at least on one side in the stacking direction.

26. A magnetic resonance imaging apparatus, characterized in that it has a coil support (1, 31, 38, 39) according to one of claims 1 to 25.

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