CN210442501U

CN210442501U - Magnetic resonance local coil with cable holding device and magnetic resonance device

Info

Publication number: CN210442501U
Application number: CN201920864438.2U
Authority: CN
Inventors: D.德列梅尔
Original assignee: Siemens Healthcare GmbH
Current assignee: Siemens Medical Ag
Priority date: 2018-06-12
Filing date: 2019-06-10
Publication date: 2020-05-01
Anticipated expiration: 2029-06-10
Also published as: DE202018002782U1

Abstract

The utility model relates to a magnetic resonance local coil and magnetic resonance device. The magnetic resonance local coil comprises at least one antenna element and a housing, which at least partially surrounds the at least one antenna element. The magnetic resonance local coil further comprises a cable arranged on the housing on the coil-side end. The cable comprises at least one signal line, which is designed to transmit signals of at least one antenna element. Furthermore, the magnetic resonance local coil comprises a holding device which is arranged on the housing of the magnetic resonance local coil and is designed to fix a section of the cable (referred to below as the fixed section or the fixing section) remote from the coil on the housing.

Description

Magnetic resonance local coil with cable holding device and magnetic resonance device

Technical Field

The utility model relates to a magnetic resonance local coil and magnetic resonance device.

Background

In medical technology, Imaging by Magnetic Resonance (MR), also known as Magnetic Resonance Tomography (MRT), is distinguished by a high and variable soft tissue contrast. In this case, excitation pulses are applied by means of a magnetic resonance apparatus in the object to be examined, which is usually a patient. Thereby generating magnetic resonance signals in the patient. The magnetic resonance signals are received as detection data by a magnetic resonance apparatus and used to reconstruct a magnetic resonance image.

The reception of magnetic resonance signals is usually realized by so-called magnetic resonance local coils (local coils), which are also referred to as surface coils (surface coils). These are common antenna systems that are mounted immediately above (anterior to the body) or below (posterior to the body) the patient. In magnetic resonance examination, the excited nuclei induce voltages in the individual antennas of the magnetic resonance local coil, which are amplified by low-noise preamplifiers and are finally conducted to the receiving electronics via a connecting cable.

The magnetic resonance local coil may comprise one or more antenna elements, which are also commonly referred to as coil elements. If the local coil comprises a plurality of antenna elements, said antenna elements can form a coil array. The individual antenna elements can be designed in particular as loop coils, butterfly coils or saddle coils. Magnetic resonance local coils usually include preamplifiers, further electronics (for example surface wave traps), cabling and housings in addition to the coil elements. The magnetic resonance local coil usually also comprises at least one cable, which may comprise a plug, by means of which the magnetic resonance local coil can be connected to the magnetic resonance apparatus. Such cables may cause interference during the performance of the magnetic resonance examination.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to improve the operation of the magnetic resonance local coil.

The object is achieved by a magnetic resonance local coil comprising at least one antenna element and a housing which at least partially surrounds, in particular encloses and/or encloses the at least one antenna element. The magnetic resonance local coil further comprises a cable which is arranged on the housing at the coil-side end. The cable comprises at least one signal line, which is designed to transmit signals of at least one antenna element. Furthermore, the magnetic resonance local coil comprises a holding device which is arranged on the housing of the magnetic resonance local coil and is designed to fix a section of the cable remote from the coil, which section is referred to below as the section to be fixed or the fixing section.

The technical problem is also solved by a magnetic resonance system having a magnetic resonance local coil according to the invention.

The at least one antenna element preferably comprises a conductor loop (Leiterschleife). The at least one antenna element is preferably designed for receiving magnetic resonance signals. Other possible characteristics of the antenna elements have been explained in advance.

The housing can be constructed in one piece or in several pieces. The housing, in particular the outer surface of the housing, can comprise different materials, in particular rigid materials, for example dimensionally stable plastics and/or flexible, in particular foamed materials. The housing may comprise at least one, in particular rigid, electronics housing, i.e. a housing which at least partially encloses at least one electronic component, for example a preamplifier.

The housing may also, for example, completely enclose the at least one antenna element, so that the at least one antenna element is not directly accessible from the outside and/or is not accessible.

The signal lines may comprise, for example, electrical and/or optical signal lines. The electrical signal line may comprise, for example, one or more electrical single lines. The optical signal line may comprise, for example, one or more glass fibers. The signals of the at least one antenna element can thereby be transmitted electrically and/or optically.

The signal line may comprise, for example, one or more single lines. Each individual wire is in particular connected and/or connectable to an antenna element. The cable may in particular comprise a cable sheath which surrounds the individual wires at least in sections.

The signal transmitted via the signal line may be, in particular, a magnetic resonance signal that can be received by at least one antenna element. The signals can be transmitted in particular to a magnetic resonance apparatus, in particular to an evaluation unit of the magnetic resonance apparatus.

The cable can be connected to the housing at the coil-side end, in particular firmly or releasably. For a secure connection, for example, a single wire of the cable is soldered directly to the at least one antenna element. For example, a first connection of the plug connection can be arranged on the housing and a second connection of the plug connection can be arranged on the coil-side end of the cable for the releasable connection. The first connector, for example a socket, can be releasably connected to a second plug connector, for example a plug.

The fixing section can be in particular a section of the cable, the exact position of which can be determined by fixing. The fixed section is not necessarily an exactly predefined section of the cable. But the cable may have a region in which the fixing section is preferably located.

The holding device can, for example, achieve the advantage that the cable can be better controlled by fixing it to the housing. In the fixed state, the cable is in particular no longer free to swing back and forth. The cable thus no longer strikes against other objects, for example, so that possible damage, for example damage to the coil plug and/or bending of the connection contacts, can be avoided. Furthermore, the movement and placement of the magnetic resonance local coil is made more aesthetic and convenient by the fixed cable.

In a further embodiment of the magnetic resonance local coil, the cable has an end remote from the coil, which is the end of the cable opposite the coil-side end of the cable, wherein the distance along the cable between the coil-side end and the fastening section is greater, in particular two times greater, in particular three times greater, in particular four times greater, than the distance between the coil-remote end and the fastening section.

The coil-side end of the cable is, for example, arranged firmly on the housing, while the end remote from the coil is free. A particularly large section of the cable can advantageously be better controlled by the relatively small distance between the free end of the cable remote from the coil and the securing section for securing the cable.

The cable can advantageously comprise a plug connection at its end remote from the coil, which plug connection can be inserted into a contact position on the magnetic resonance apparatus, in particular in a patient couch. The plug connector may be, for example, a contact plug, i.e., a plug having electrical and/or optical contacts. The signals of the magnetic resonance local coil can thus be transmitted easily to the magnetic resonance apparatus.

The fastening section can in particular be located in the region of the plug connection. The plug connection can, for example, comprise a housing with a hook and loop fastener on the outer surface, by means of which the plug connection can be fastened to the housing of the magnetic resonance local coil.

In a further embodiment of the magnetic resonance local coil, the mass of the cable is at least one fifth, in particular at least one fourth, in particular at least one third, in particular at least one half of the total mass of the magnetic resonance local coil. Precisely when the cable is relatively heavy, the positioning of the magnetic resonance local coil can be made difficult by the cable if the movement of the cable is not controlled. The possibility of fastening the cable can thus simplify the handling of the magnetic resonance local coil.

In a further embodiment of the magnetic resonance local coil, the magnetic resonance local coil is at least partially flexibly, in particular deformably and/or elastically, configured. Such a flexible magnetic resonance local coil can advantageously be adapted to the contour of the patient. The housing of the flexible magnetic resonance local coil preferably has a foamed material at least in sections. Since magnetic resonance local coils are suitable for patients, flexible magnetic resonance local coils are usually relatively lightweight.

In order to be able to variably position the magnetic resonance local coil, flexible magnetic resonance local coils usually have long cables. In order to reach remote, usually not movable contact positions on the patient bed, long cables are advantageous. The contact points can be connected, for example, to plug connections arranged on the end of the cable remote from the coil. Especially in flexible magnetic resonance coils, which are lightweight overall, long cables often have a relatively heavy weight which makes handling difficult. This effect can be reduced by the fixing possibility of the cable.

In a further embodiment of the magnetic resonance local coil, the housing has a patient-close surface and a patient-far surface when the housing is positioned on the patient, wherein the holding device is arranged on the patient-far surface.

In this case, during operation of the magnetic resonance local coil, the surface close to the patient is preferably arranged facing the patient and the surface remote from the patient is preferably arranged facing away from the patient.

The positioning of the magnetic resonance local coil on the patient can be made easier in particular by arranging the holding device on a surface remote from the patient, since the shaping of the magnetic resonance local coil on the patient is thereby made easier.

In a further embodiment of the magnetic resonance local coil, the holding device is glued to the housing and/or sewn to the housing and/or is connected integrally to the housing. For example, an integrated connection can be produced by thermally integrating the holding device in the antenna-foam composite. This connection is particularly robust.

The holding device can be attached to the housing in a form-fitting and/or friction-fitting and/or material-bonded manner.

In a further embodiment of the magnetic resonance local coil, it is provided that the magnetic resonance local coil has hook and loop fasteners and/or snap fasteners in order to fasten the fastening section of the cable to the housing.

The hook and loop fastener typically has a loop side with loops and/or a hook side with hooks. The hooks on the hooking side are designed to hook into the fastening loops on the fastening loop side in the connected state. Pulling the fastening ring side and the hooking side away from each other enables the hook to be removed again from the fastening ring, so that the hook and loop fastening constitutes an advantageous releasable connection.

The hook or loop tape can be arranged, for example, in a loop on the cable or wound around the cable. The hook or loop strap can be fastened to a corresponding counterpart (i.e. hook material for the hook strap or hook material for the loop strap) arranged on the housing of the magnetic resonance local coil.

In a further embodiment of the magnetic resonance local coil, the holding device comprises a connecting piece which is designed to at least partially enclose the fastening section of the cable.

The connecting piece is preferably of a flexible material, for example textile, leather and/or synthetic leather.

The web has in particular a first and a second web section. The web has a web intermediate section between the first and second web sections. The first and second web sections are connected in particular by a web intermediate section. In the secured state, the first and/or the second web section is connected to the housing of the magnetic resonance local coil and the securing section of the cable is arranged between the first and the second web section and between the web intermediate section and the housing of the magnetic resonance local coil.

The connection between the first and/or second web section and the housing of the magnetic resonance local coil may be firm or releasable. One of the two connecting sections can in particular be firmly connected to the housing and the other can be releasably connected to the housing. For example, the first connecting web section can be firmly connected to the housing and the second connecting section can be releasably connected to the housing.

Alternatively, the connection between the first web section and the housing of the magnetic resonance local coil and the connection between the second web section and the housing of the magnetic resonance local coil may be releasable. The web can in particular be a part separate from the housing which has no firm connection to the housing. This may have the advantage that the connecting piece can be replaced and/or, if necessary, removed completely.

In a further embodiment of the magnetic resonance local coil, the holding device has a hook and loop fastener and/or a snap fastener, by means of which the first and/or second connecting section can be connected to the housing. Reliable releasable connections can be established by these connection types.

The hook and loop fastener may have a round, point-like, large-area or other shaped connection surface, for example. The attachment surface may be configured as a pad.

The connecting web preferably has a hooking side or a latching side at least in some sections, in particular completely, on at least one side thereof. This enables in particular a particularly simple construction of the holding device.

In a further embodiment of the magnetic resonance local coil, the holding device has a feed-through unit with an opening designed to allow the connection piece to be guided through. The connecting piece can in particular have a snap ring which is fixed to the opening.

The feed-through unit may in particular comprise a first feed-through unit section and a second feed-through unit section, wherein the feed-through unit has a feed-through unit intermediate section between the first and second feed-through unit sections, wherein in the secured state the first and second feed-through unit sections are connected to the housing of the magnetic resonance local coil, wherein the connection lug can be guided between the first and second feed-through unit sections and between the feed-through unit intermediate section and the housing of the magnetic resonance local coil in order to secure the connection lug to the feed-through device. The connecting piece can in particular have a snap ring which is fixed to the central section of the threading unit.

The lug can in particular be dimensioned such that the fastening section with the plug connection arranged on the end of the cable remote from the coil is covered by the lug, which is thus designed like a pocket in this case.

The dimension of the lug perpendicular to the connecting line between the first and second lug sections is preferably smaller, in particular smaller by less than 10cm, than the clear distance between the plug connection on the cable end remote from the coil and the housing of the surface wave trap arranged most closely to the cable end remote from the coil. So that the connecting piece can have the effect of a particularly firm holding device.

In a further embodiment of the magnetic resonance local coil, the holding device has a clamp designed to clamp the fastening section. The clip is preferably designed to fix the fastening section in a form-fitting and/or friction-fitting manner.

The clip is designed in particular for pressing the fastening section against a housing of the magnetic resonance local coil.

In a further embodiment of the magnetic resonance local coil, the cable has at least one fixing section limiting element, which has a larger dimension perpendicular to the axial direction of the cable than the fixing section of the cable and limits the position of the fixing section. The cable can in particular have a larger diameter in the region of the securing section limiting element than in the securing section.

One possible advantage resulting from this is that the fixing section limiting element prevents the fixing section from slipping out of the web and/or the clip.

In a further embodiment of the magnetic resonance local coil, the at least one stationary section limiting element comprises a thickening and/or a ring and/or a housing of the surface wave trap. The ring can be connected to the cable, for example, in a form-fitting and/or friction-fitting manner. This results in a variant which can be implemented particularly easily.

In a further embodiment of the magnetic resonance local coil, the fastening section limiting element is arranged between the coil-side end and the fastening section.

The securing section limiting element can be used particularly effectively here. The plug connection on the end of the cable remote from the coil can also function as a securing section limiting element between the securing section and the end of the cable remote from the coil, for example.

In a further embodiment of the magnetic resonance local coil, the magnetic resonance local coil comprises a plurality of holding devices which are arranged on a housing of the magnetic resonance local coil and are designed to fix a plurality of fastening sections of a cable on the housing. The plurality of holding devices enables a better fixation of the cable as a whole to be achieved precisely for particularly long and/or particularly heavy cables.

Drawings

Further advantages, features and details of the invention emerge from the embodiments described below and from the figures. Corresponding parts are provided with the same reference numerals throughout the figures.

In the drawings:

fig. 1 shows a magnetic resonance apparatus in a schematic view;

figures 2-7 show different variants of a magnetic resonance local coil with a holding means;

fig. 8-9 show two variants of clips as holding means.

Detailed Description

Figure 1 diagrammatically shows a magnetic resonance apparatus 100. The magnetic resonance apparatus 100 comprises a magnet unit 110 having a main magnet 120 for generating a strong and in particular temporally constant main magnetic field 130. Furthermore, the magnetic resonance apparatus 100 has a patient receiving region 140 for receiving a patient 150. The patient receiving region 140 is configured cylindrically in this exemplary embodiment and is surrounded cylindrically in the circumferential direction by the magnet unit 110. In principle, however, it is always conceivable to construct the patient receiving region 140 differently. The patient 150 can be moved into the patient receiving region 140 by means of the patient support 160 of the magnetic resonance apparatus 100. For this purpose, the patient support device 160 has a patient couch 170 which is designed to be movable within the patient receiving region 140.

The magnet unit 110 also has a gradient coil unit 180 for generating magnetic field gradients used for position encoding during imaging. The gradient coil unit 180 is controlled by means of a gradient control unit 190 of the magnetic resonance apparatus 100. The magnet unit 110 further comprises a high-frequency antenna unit 200, which high-frequency antenna unit 200 is configured in this embodiment as a body coil that is firmly integrated in the magnetic resonance apparatus 100. The high-frequency antenna unit 200 is designed for exciting nuclei present in the main magnetic field 130 generated by the main magnet 120. The radio-frequency antenna unit 200 is controlled by a radio-frequency antenna control unit 210 of the magnetic resonance apparatus 100 and emits high-frequency magnetic resonance pulse sequences into an examination space, which is essentially formed by the patient receiving region 140 of the magnetic resonance apparatus 100. The high-frequency antenna unit 200 is also designed for receiving magnetic resonance signals.

The magnetic resonance apparatus 100 has a system control unit 220 to control the main magnet 120, the gradient control unit 190 and the high-frequency antenna control unit 210. The system control unit 220 centrally controls the magnetic resonance apparatus 100, for example, performs a predetermined imaging gradient echo sequence. The system control unit 200 further comprises an analysis unit, not shown in detail, for analyzing medical image data acquired during the magnetic resonance examination. Furthermore, the magnetic resonance apparatus 100 comprises a user interface 230 which is connected to the system control unit 220. The control information, e.g. the imaging parameters and the reconstructed magnetic resonance image can be displayed to the medical operator on a display unit 240 of the user interface 230, e.g. on at least one display. Furthermore, the user interface 230 has an input unit 250, by means of which the medical operator can input information and/or parameters during the examination procedure.

The magnetic resonance apparatus 100 also comprises a magnetic resonance local coil 1, which magnetic resonance local coil 1 is connected to a plug connection 175 by a cable 4 comprising a plug connection 5, which plug connection 175 is arranged on the patient bed. The magnetic resonance local coil 1 further comprises a holding device 6, by means of which holding device 6 the cable 4 can be fixed on the housing 2 of the magnetic resonance local coil 1.

Fig. 2 shows the magnetic resonance local coil 1 in detail. The magnetic resonance local coil comprises at least one antenna element, not shown here, and a

housing

2, 3 surrounding the at least one antenna element. The housing comprises a flexible, foamed part 2 and a rigid part 3, in which part 3 electronic components are mounted.

The magnetic resonance local coil 1 further comprises a cable 4, which is arranged on the housing 3 at the coil-side end. The cable 4 comprises a signal line, not shown here, which is designed for transmitting signals of at least one antenna element.

The magnetic resonance local coil 1 further comprises a holding device 6, 7, 8 arranged on the housing of the magnetic resonance local coil 1, which holding device is designed to fix a fixing section of the cable remote from the coil on the housing.

The holding device comprises a lug 6 in the form of a holding lug, which lug 6 is fixed on the housing 2 on one side. The connecting strip 6 can be sewn and/or glued there, for example, and/or the connecting strip 6 is integrated into the composite of antenna element and foamed part during the thermal production of the flexible part of the magnetic resonance local coil, so that the holding device is connected integrally to the housing 2.

For example, a hook side 7 is provided on the web 6 and a loop side 8 is provided on the housing 2, which hook side 7 and loop side 8 can form a snap connection.

Fig. 3 to 7 each show the surface of the magnetic resonance local coil 1 facing away from the patient. The holding device 6 is in these examples always arranged on a surface remote from the patient.

Fig. 3 shows that the web 6 can also be attached to the rigid part 3 of the housing. The holding device 6 has a feed-through unit 12 in the form of a connecting bridge, which is arranged on the housing 3. The lead-through unit 12 has an opening through which a connecting web in the form of a snap ring can be guided.

In fig. 4, the fastening section of the cable is fastened by a web 6, which web 6 partially surrounds the fastening section. The web 6 has a first web section 6a and a second web section 6 b. The web intermediate section 6c is located between the first web section 6a and the second web section 6 b. In the secured state as shown here, the first web section 6a is firmly and the second web section 6b is releasably connected to the housing 2 of the magnetic resonance local coil 1. The fastening section of the cable 4 is arranged between the first web section 6a and the second web section 6b and between the web intermediate section 6c and the housing 2 of the magnetic resonance local coil 1. The connecting piece 6 can be closed across the cable 4 and fixed, for example, by means of a hook-and-loop connection 7, 8, also commonly referred to as a hook-and-pile connection (Klett-flauschcrvinding), or a snap fastener 7, 8. The magnetic resonance local coil 1 therefore has hook and loop fasteners 7, 8 and/or snap fasteners 7, 8 in order to fasten a fastening section of the cable 4 remote from the coil to the housing 2.

Whether the hook side, which is generally referred to as the hook side, or the loop side, which is generally referred to as the pile side, is arranged on the housing 2 or on the connecting piece 6 is arbitrary for hook and loop fastening. The hook-and-pile material here constitutes a mat. The mat may be circular or other shapes, punctiform or large-area. The web may also have hook and loop material or fluff material over the entire face, thereby eliminating the need for a cushion.

The cable 4 comprises a plug connection 5 at its end remote from the coil. In this parking position, the distance l between the end of the cable remote from the coil and the fastening section remote from the coil₁Less than the distance l between the coil-side end and the fastening section remote from the coil₂。

In fig. 5, the cable 4 has a loop 9 as a fixing section limiting element between its coil-side end and the fixing section. The ring 9 can be connected with the cable 4 in a form-fitting or friction-fitting manner. The ring 9 has a larger dimension perpendicular to the axial direction of the cable than the fixed section of the cable remote from the coil. The axial direction of the cable is also commonly referred to as the longitudinal direction.

The position of the fixing section is limited by the ring 9. Other possible stationary section limiting elements are a thickening of the cable and/or a housing of the surface wave trap. The ring 9 prevents the slipping of the cable 4 and better fixes the position of said cable 4.

As shown in fig. 6, the web 6 can also be designed to be larger in the form of a pocket. The entire plug connection 5 can be arranged in the pocket. In particular, the fastening can again be realized on the flexible housing section 2 or the rigid housing section 3.

It is also possible for the fastening tabs 6, i.e. the first and second tab sections, on both sides of the cable, to be releasably connectable to the

housings

2, 3, for example by means of a hook-and-loop connection and/or a snap connection. In this case, the connecting piece is replaceable or can be completely removed if necessary.

Fig. 7 shows a further variant of the fastening arrangement. The plug connector 5 is fixed directly to the flexible part of the housing 2 by means of hook and loop connections 7, 8. The fastening section is located in the region of the plug connection 5. The selection of the hooking side and the hooking side is also variable here.

Fig. 8 and 9 show two variants of clips 10 as holding devices, which are each arranged on the housing 2. In fig. 8, the cable is clipped into the clip 10 in the fixing section. In fig. 9, the cable 4 is moved between the surface of the housing and the clamp. In both cases the material of the clip 10 has a certain elasticity.

Finally, it is pointed out again that the magnetic resonance local coil described in detail in the foregoing is merely an embodiment which can be varied in different ways by the skilled person without departing from the scope of the invention. Furthermore, the use of the term "unit" does not exclude the relevant component from being formed by a plurality of cooperating sub-components, which may also be spatially distributed if desired.

Claims

1. A magnetic resonance local coil comprises

-at least one antenna element,

a housing at least partially enclosing the at least one antenna element,

a cable, the end of which on the coil side is arranged on the housing,

wherein the cable comprises at least one signal line which is designed for transmitting signals of the at least one antenna element, characterized in that the magnetic resonance local coil comprises a holding device which is arranged on a housing of the magnetic resonance local coil and is designed for fixing a section of the cable remote from the coil on the housing.

2. A magnetic resonance local coil according to claim 1, wherein the cable has an end remote from the coil, which is an end of the cable opposite to the coil-side end of the cable, wherein a distance between the coil-remote end and the fixed section is smaller than a distance between the coil-side end and the fixed section.

3. A magnetic resonance local coil according to claim 1, characterized in that the mass of the cable is at least one fifth of the total mass of the magnetic resonance local coil.

4. The magnetic resonance local coil according to claim 1, characterized in that the magnetic resonance local coil is at least in sections flexibly constructed.

5. Magnetic resonance local coil according to claim 1, wherein the housing has a patient-close surface and a patient-far surface in a state of being positioned on a patient, wherein the holding means is arranged on the patient-far surface.

6. A magnetic resonance local coil according to claim 1, characterized in that the holding means is glued to the housing and/or sewn to the housing and/or integrally connected to the housing.

7. A magnetic resonance local coil according to claim 1, characterized in that the magnetic resonance local coil has hook and loop and/or snap fasteners for fixing the fixed section of the cable on the housing.

8. A magnetic resonance local coil according to claim 1, characterized in that the holding means comprise a web designed to at least partially enclose a fixed section of cable.

9. A magnetic resonance local coil according to claim 8, wherein the connection piece has a first and a second connection piece section, wherein the connection piece has a connection piece intermediate section between the first and the second connection piece sections, wherein in the fixed state the first and/or the second connection piece section is connected with the housing of the magnetic resonance local coil and the fixed section of the cable is arranged between the first and the second connection piece section and between the connection piece intermediate section and the housing of the magnetic resonance local coil.

10. A magnetic resonance local coil according to claim 8 or 9, characterized in that the holding means have a hook and loop and/or snap fastener, whereby the first and/or second connection piece section can be connected with the housing.

11. The magnetic resonance local coil according to claim 8 or 9, characterized in that the holding device has a threading unit with openings designed for the connection pieces to be guided through.

12. The magnetic resonance local coil according to claim 1, characterized in that the holding device has a clip designed for clamping the fixed section.

13. The magnetic resonance local coil according to claim 1, characterized in that the cable has at least one fixed section limiting element which has a larger dimension perpendicular to the axial direction of the cable than the fixed section of the cable and limits the position of the fixed section.

14. The magnetic resonance local coil according to claim 13, characterized in that the at least one fixed section limiting element has a thickening and/or a ring and/or a housing of a surface wave trap.

15. The magnetic resonance local coil according to claim 13 or 14, characterized in that the fixed section limiting element is arranged between the coil-side end and the fixed section.

16. Magnetic resonance local coil according to claim 1, characterized in that the magnetic resonance local coil comprises a plurality of holding means which are arranged on a housing of the magnetic resonance local coil and are designed for fixing a plurality of fixed sections of a cable on the housing.

17. A magnetic resonance apparatus having a magnetic resonance local coil according to one of claims 1 to 16.