CN220236870U - Patient support apparatus and magnetic resonance apparatus having a patient support apparatus - Google Patents

Patient support apparatus and magnetic resonance apparatus having a patient support apparatus Download PDF

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Publication number
CN220236870U
CN220236870U CN202320954100.2U CN202320954100U CN220236870U CN 220236870 U CN220236870 U CN 220236870U CN 202320954100 U CN202320954100 U CN 202320954100U CN 220236870 U CN220236870 U CN 220236870U
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cable
patient support
support apparatus
surface wave
examination
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斯特凡·比贝尔
马丁·黑默莱因
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Siemens Healthineers AG
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Siemens Healthineers AG
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
    • A61B5/704—Tables
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3685—Means for reducing sheath currents, e.g. RF traps, baluns

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Radiology & Medical Imaging (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The utility model is based on a patient support apparatus configured for moving a patient into a patient receiving region of a magnetic resonance apparatus, the patient support apparatus comprising: -an examination couch, which is movably configured in a longitudinal direction of the examination couch; -two or more plug contacts provided at the head end of the examination bed and configured for connecting the accessory unit via the examination bed; -a connecting element arranged at the foot end of the examination bed; -at least one cable bundle connecting two or more plug contacts with the connecting element, characterized in that the number of cable bundles is smaller than the number of plug contacts.

Description

Patient support apparatus and magnetic resonance apparatus having a patient support apparatus
Technical Field
The utility model relates to a patient support device which is designed for moving a patient into a patient receiving region of a magnetic resonance device. The utility model also relates to a magnetic resonance apparatus having a patient support apparatus.
Background
During magnetic resonance measurement, image data, in particular magnetic resonance image data, with a high signal-to-noise ratio are usually detected by means of local radio frequency coils. The local radio frequency coil is positioned for this purpose around the region to be examined of the patient and is connected to the examination couch via plug contacts and/or sockets and is connected here to the magnetic resonance apparatus, in particular to the receiving electronics of the magnetic resonance apparatus. In order to forward the detected image data, a cable bundle is installed in the examination couch, which connects the plug-in contact with the receiving electronics.
During a magnetic resonance examination, a portion of the couch is within the patient receiving region and thus in the transmit field of the radio frequency antenna. To prevent and/or reduce interference, such as current flow on the outer conductor of the cable bundle, the cable bundle has a surface wave trap (Mantelwellensperren). The surface wave trap is subjected to different boundary conditions. On the one hand, the surface wave trap should be constructed as small as possible, since there is little space and/or structural space in or under the examination table, which also guides the wire bundle. On the other hand, surface wave traps should also be manufactured as cost-effectively as possible.
Disclosure of Invention
The utility model is based on the object, inter alia, of providing a cost-effective and space-saving arrangement of a surface wave trap in an examination table. The object is achieved by the features of the utility model. Advantageous embodiments are described in the following description.
The utility model is based on a patient support device which is designed for moving a patient into a patient receiving region of a magnetic resonance device. The patient support apparatus comprises a couch, which is configured to be movable in the longitudinal direction of the couch; two or more plug contacts provided at the head end of the examination bed and configured for connecting the accessory unit via the examination bed. Furthermore, the patient support apparatus has a connection element arranged at the foot end of the examination table and at least one cable harness connecting the two or more plug contacts with the connection element. According to the utility model, the number of cable bundles is smaller than the number of plug contacts.
The magnetic resonance system preferably comprises a medical and/or diagnostic magnetic resonance system which is designed and/or constructed for detecting medical and/or diagnostic image data, in particular medical and/or diagnostic magnetic resonance image data, of a patient. The magnetic resonance apparatus comprises a scanner unit. The scanner unit of the magnetic resonance apparatus preferably comprises a detection unit, in particular a magnet unit, for detecting medical and/or diagnostic image data. The scanner unit, in particular the magnet unit, comprises here a basic magnet, a gradient coil unit and a radio frequency antenna. The radio frequency antenna is fixedly arranged in the scanner unit and is designed to transmit radio frequency pulses.
The basic magnet is configured to generate a uniform basic magnetic field having a defined magnetic field strength, for example having a magnetic field strength of 3T or 1.5T or the like. The basic magnet is especially configured for generating a strong, uniform and constant basic magnetic field. The homogeneous basic magnetic field is preferably arranged and/or located in a patient receiving region of the magnetic resonance apparatus. The gradient coil units are configured for generating magnetic field gradients which are used for position encoding during imaging.
The patient receiving region is designed and/or designed for receiving a patient, in particular a region of the patient to be examined, for performing a medical magnetic resonance examination. The patient receiving area is for this purpose formed cylindrically and/or enclosed cylindrically by the scanner unit.
A field of view (FOV) and/or an isocenter of the magnetic resonance apparatus is preferably provided within the patient receiving region. The FOV preferably comprises a detection region of the magnetic resonance apparatus in which conditions for detecting medical image data, in particular magnetic resonance image data, for example a uniform basic magnetic field, are present. The isocenter of the magnetic resonance apparatus preferably comprises regions and/or points within the magnetic resonance apparatus having optimal and/or ideal conditions for detecting medical image data, in particular magnetic resonance image data. The isocenter comprises in particular the most homogeneous magnetic field region within the magnetic resonance apparatus.
The patient support apparatus may include a mobile patient support apparatus including a mobile unit, a base unit, and an examination couch. By means of the moving unit, the patient support apparatus can be moved freely in space. For a magnetic resonance examination, the patient support device is coupled to the magnetic resonance device and the examination couch of the mobile patient support device can be moved into the patient receiving region of the magnetic resonance device only in the coupled state. For this purpose, the patient support device and/or the magnetic resonance device, in particular the scanner unit of the magnetic resonance device, preferably have a coupling unit. The coupling unit can be configured for mechanical coupling and for coupling in terms of data exchange.
Furthermore, the patient support apparatus may comprise a patient support apparatus fixedly mounted to the magnetic resonance apparatus. Such a patient support apparatus has an examination couch and a base unit, wherein the examination couch is configured in a manner that it can be moved into a patient receiving region of the magnetic resonance apparatus.
For magnetic resonance examinations, the patient is positioned on the examination couch such that after the examination couch is positioned within the patient receiving region, the region of the patient to be examined is arranged and/or positioned in the isocenter of the patient receiving region. In order to position the couch in the patient receiving area, the couch is moved into the patient receiving area, in particular in the longitudinal direction of the couch and/or the patient receiving area.
During the preparation of the patient for the magnetic resonance examination at hand, the accessory unit required for the magnetic resonance examination is provided at the patient. Such an accessory unit may for example comprise local radio frequency coils configured for detecting magnetic resonance signals during magnetic resonance measurements. The local radio frequency coil is arranged here around the region of the patient to be examined. Furthermore, the accessory unit may comprise other units, such as an EKG unit, an earphone and/or a patient call ball, etc.
For connecting the accessory unit, in particular the local radio frequency coil, to the magnetic resonance apparatus, in particular to the control unit of the magnetic resonance apparatus and/or to the receiving electronics, the examination table has two or more plug contacts. The two or more plug contacts are preferably each formed by a socket. For this purpose, the fitting unit preferably also has a plug connector which is complementary and/or corresponds to the plug contact, in particular the socket.
Furthermore, two or more plug contacts are provided at the head end of the examination bed. In this way, two or more plug contacts are connected and/or connected via the examination table to the magnetic resonance apparatus, in particular to a control unit and/or to receiving electronics of the magnetic resonance apparatus. By means of two or more plug contacts, a data exchange between the accessory unit connected to the plug contacts and the magnetic resonance apparatus, in particular the control unit and/or the receiving electronics of the magnetic resonance apparatus, can be achieved.
The head end of the bed here includes the following ends of the bed: the end is arranged in the forward region of the examination couch in the insertion direction and/or is initially moved into the patient receiving region during the insertion of the examination couch into the patient receiving region. Conversely, the foot end of the couch here includes the following ends of the couch: the end is arranged in the rear region of the examination couch in the insertion direction and/or is finally inserted into the patient receiving region during insertion of the examination couch into the patient receiving region.
At least one cable harness is provided within the examination couch, which connects the two or more plug contacts with the connection element of the patient support apparatus. The connection element is arranged at the foot end of the examination bed so as to be arranged and/or positioned outside the patient receiving area of the magnetic resonance apparatus during a magnetic resonance examination. The data may be exchanged by the connection element with the control unit and/or the receiving electronics of the magnetic resonance apparatus. The connection element may comprise, for example, a plug connection between data cables. However, it is particularly advantageous if the connection element comprises a connection plate and/or a connection plate.
Furthermore, the examination couch may have further plug-in contacts, which are arranged in particular at the foot end of the examination couch and/or in the longitudinal direction in the middle region of the examination couch. Such plug-in contacts can preferably be designed for connecting a patient call ball and/or a back coil.
Since the number of cable bundles is smaller than the number of plug contacts on the examination table, a particularly space-saving cable guidance in the examination table can be achieved. Furthermore, a particularly cost-effective cable guide can be provided in this way, since the number of cable bundles can be minimized.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that at least one cable bundle has a plurality of surface wave traps. If the patient support apparatus, in particular the examination couch, has more than one cable bundle, each of the cable bundles preferably has a plurality of surface wave traps. Unwanted disturbances, such as current flow on the outer conductor of the cable harness, can thereby advantageously be prevented and/or reduced.
In this case, the surface wave traps each comprise a coaxial surface wave trap, so that a particularly cost-effective embodiment of the data transmission of the plug-in contact to the magnetic resonance apparatus, in particular to the control unit of the magnetic resonance apparatus, and/or to the receiving electronics, is possible. In this way, surface wave barriers, which are very complex and expensive to produce and are formed from thin metal plastic bodies, tuning capacitors and printed circuit boards, can be dispensed with in particular, which are formed as barrier cans. Furthermore, if the cross section of the surface wave trap is of elliptical design and is not circular, a particularly space-saving integration of the surface wave trap in the examination table can be achieved.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that at least one cable bundle with a surface wave trap is arranged in the region of the examination table in the transverse direction. In this way, the cable bundle and thus also the surface wave trap can be arranged in the region of the examination couch in which only a small voltage is induced onto the examination couch and thus onto the cable bundle and the surface wave trap.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that at least one cable bundle is arranged at the underside of the examination table. In this way, a space-saving arrangement of the at least one cable bundle in the examination table can be advantageously achieved. For this purpose, the examination table can also have a recess for accommodating the individual cable bundles and/or surface wave traps at the underside.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that at least one cable bundle has a multicore coaxial cable (Multi-Koaxialkabel) with a maximum diameter of between 4mm and 10 mm. Preferably, at least one cable bundle has a multicore coaxial cable with a maximum diameter between 4mm and 8 mm. Preferably, at least one cable bundle has a multicore coaxial cable with a maximum diameter between 4mm and 6 mm. Preferably, at least one cable bundle has a multicore coaxial cable with a maximum diameter between 4mm and 5 mm. In this way, individual cable bundles can be integrated particularly space-saving within the examination table, in particular at the underside of the examination table. Preferably, the multi-core coaxial cable has a plurality of single-core coaxial cables and a single-core signal cable. The multicore coaxial cable may include, for example, 18 single core coaxial cables, 23 single core signal cables (Einzel-signalabael), and a single core power line (Einzel-Stromkabel).
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that the multicore coaxial cable comprises a plurality of individual coaxial cables, wherein each individual coaxial cable has a maximum diameter of 0.3mm to 1.2mm, whereby a particularly space-saving arrangement in the patient receiving area can be achieved. Preferably, at least one cable bundle has a single core coaxial cable with a maximum diameter between 0.3mm and 1.0 mm. Preferably, at least one cable bundle has a single core coaxial cable with a maximum diameter between 0.3mm and 0.8 mm. Preferably, at least one cable bundle has a single core coaxial cable with a maximum diameter between 0.3mm and 0.7 mm. Preferably, at least one cable bundle has a single core coaxial cable with a maximum diameter between 0.3mm and 0.6 mm.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that the examination table has three plug contacts arranged at the head end of the examination table for connecting the fitting unit and two cable bundles arranged between the three plug contacts and the connecting element. Preferably, the two cable bundles here comprise one multi-cable, in particular multi-core coaxial cable each. Thereby, for each contact and/or channel of the three plug contacts, the two cable bundles comprise enough single-core cables such that each channel and/or each contact of the three plug contacts can be distributed over the two cable bundles.
In an advantageous further development of the patient support apparatus according to the utility model, it can be provided that each of the three plug contacts has a fixed assignment to the single-core coaxial cable and/or the single-core signal cable of the first cable bundle and/or to the single-core coaxial cable and/or the single-core signal cable of the second cable bundle. The connection of the plug contact to the single-core coaxial cable and/or the single-core signal cable of the two cable bundles can thus be achieved in a simple manner.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that the two cable bundles have a common surface wave trap. The two cable bundles are connected to one another here preferably via their conductive sheaths. This allows a particularly cost-effective design, since the number of surface wave traps can be halved.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that the first cable bundle is arranged mirror-symmetrically to the second cable bundle with respect to the arrangement of the surface wave trap. The first cable bundle is preferably arranged parallel to the second cable bundle.
In an advantageous further development of the patient support apparatus according to the utility model, it can be provided that the first cable bundle and/or the second cable bundle has a plurality of capacitive resistors and/or a plurality of short-circuit circuits, wherein each surface wave trap of the first cable bundle is connected to a surface wave trap of the second cable bundle, which is arranged mirror-symmetrically to each surface wave trap of the first cable bundle, by means of the capacitive resistors and/or the short-circuit circuits. Preferably, the first cable bundle is arranged parallel to the second cable bundle. The surface wave trap of the first cable bundle may thus be advantageously decoupled from the surface wave trap of the second cable bundle and undesired disturbances are reduced and/or prevented.
In an advantageous development of the patient support apparatus according to the utility model, it can be provided that the surface wave trap of the first cable bundle is arranged offset from the surface wave trap of the second cable bundle. Preferably, the first cable bundle is arranged parallel to the second cable bundle. The surface wave trap of the first cable bundle may thereby be advantageously decoupled from the surface wave trap of the second cable bundle and undesired disturbances in the surface wave trap are reduced and/or prevented. The surface wave trap of the first cable bundle is arranged offset from the surface wave trap of the second cable bundle, in particular in the z-direction and/or in the longitudinal direction of the examination table.
In an advantageous further development of the patient support apparatus according to the utility model, it can be provided that the examination table has three further cable bundles arranged between the connecting element and the control unit of the magnetic resonance apparatus and/or between the connecting element and the coupling unit, wherein the three further cables are each associated with a plug contact and have a diameter, wherein the diameter is greater than the diameter of at least one cable bundle. In this way, at least one cable bundle having a thinner diameter can advantageously be limited to the length of the examination table, so that the ohmic losses or dielectric losses associated therewith, which are caused by the at least one thinner cable bundle, are also kept small due to the limited length of the at least one cable bundle within the examination table.
The utility model is furthermore based on a magnetic resonance apparatus having a patient support device which is designed for moving a patient into a patient receiving region of the magnetic resonance apparatus, wherein the patient support device comprises: an inspection bed, which is movably configured in a longitudinal direction of the inspection bed; two or more plug contacts provided at the head end of the inspection bed and configured for connecting the accessory unit via the inspection bed; a connecting element disposed at a foot end of the examination couch; and at least one cable harness connecting the two or more plug contacts with the connecting element, wherein the number of cable harnesses is smaller than the number of plug contacts.
The advantages of the magnetic resonance apparatus according to the utility model substantially correspond to the advantages of the patient support apparatus according to the utility model described in detail hereinabove. The features, advantages, or alternative embodiments mentioned herein may also be reversed for other claimed subject matter, and vice versa.
Drawings
Other advantages, features and details of the utility model emerge from the embodiments described hereinafter and from the figures.
The drawings show:
figure 1 shows in a schematic view a magnetic resonance apparatus with a patient support apparatus according to the utility model,
figure 2 shows a first embodiment of a patient support apparatus,
figure 3 shows a cross section of a multi-core coaxial cable through a cable bundle,
figure 4 shows a second embodiment of a patient support apparatus,
figure 5 shows another arrangement of cable bundles within an examination bed,
figure 6 shows another arrangement of cable bundles within an examination bed,
fig. 7 shows a third arrangement of cable bundles within an examination bed.
Detailed Description
A magnetic resonance apparatus 10 is schematically shown in fig. 1. The magnetic resonance apparatus 10 comprises a scanner unit 11 formed by a magnet unit. The scanner unit 11, in particular the magnet unit, comprises a superconducting basic magnet 12 for generating a strong and in particular constant basic magnetic field 13. Furthermore, the scanner unit 11, in particular the magnet unit, has a gradient coil unit 14 for generating magnetic field gradients for position coding during imaging. The scanner unit 11, in particular the magnet unit, further comprises a radio frequency antenna unit 15 for exciting a polarization that occurs in the basic magnetic field 13 generated by the basic magnet 12.
Furthermore, the magnetic resonance apparatus 10 has a patient receiving area 16 for receiving a patient 17. In the present exemplary embodiment, the patient receiving area 16 is formed cylindrically and is surrounded cylindrically in the circumferential direction by the scanner unit 11, in particular by the magnet unit. In principle, however, a different embodiment of the patient receiving area 16 is always conceivable. The patient 17 can be pushed and/or moved into the patient receiving region 16 by means of a patient support device 18 of the magnetic resonance device 10. For this purpose, the patient support device 18 has an examination couch 19 which is movably embodied in the patient receiving region 16. The examination table 19 is mounted so as to be movable in particular in a direction 20 of the longitudinal extent of the patient support region 16 and/or in the longitudinal direction of the examination table 19 and/or in the z-direction.
In fig. 1 and 2, the patient support apparatus 18 includes a mobile patient support apparatus 18 having a mobile unit 21, a base unit 22, and an examination couch 19. The patient support apparatus 18 can be moved freely in space by means of the moving unit 21. For a magnetic resonance examination, the patient support device 18 is coupled to the magnetic resonance device 10, in particular to the scanner unit 11 of the magnetic resonance device 10, and the examination couch 19 of the mobile patient support device 18 can be moved into the patient receiving region 16 of the magnetic resonance device 10 only in the coupled state. The patient support device 18 has a coupling unit 23 for this purpose which is compatible with the coupling unit 24 of the scanner unit 11.
The couch 19 has three plug contacts 26 (fig. 1 and 2) at the head end 25 of the couch 19. The individual plug contacts 26 are in this case designed as sockets which are compatible with the plug elements of the fitting unit 27. In fig. 1, the accessory unit 27 is formed by a local radio frequency coil. By means of the plug-in contact 26, the accessory unit 27, such as in particular a local radio frequency coil, which is relevant and/or required for the magnetic resonance examination, is coupled to the magnetic resonance apparatus 10, in particular to a control unit and/or to receiving electronics 28 of the magnetic resonance apparatus 10. Furthermore, the examination couch 19 has a connecting element 29 arranged at a foot end 30 of the examination couch 19. The connecting element 29 is arranged in particular in the examination table 19. In this embodiment, the connection element 29 comprises a wiring board and/or a connection board.
The examination bed 19 also has two cable bundles 31 arranged between the three plug contacts 26 and the connecting element 29, wherein the number of cable bundles 31 is smaller than the number of plug contacts 26 (fig. 2). The two cable bundles 31 connect the three plug contacts 26 to the connecting element 29. Furthermore, each cable bundle 31 has a plurality of surface wave traps 32 in order to avoid disturbances in the patient receiving region 16 during magnetic resonance measurement, such as current flows on the outer conductors of the cable bundles 31 (fig. 2). The surface wave traps 32 are formed here as coaxial surface wave traps 32.
The two cable bundles 31 are here arranged at the underside 33 of the examination table 19. For this purpose, the examination table 19 may also have a recess at the underside 33 for accommodating the individual cable bundles 31. Furthermore, in a transverse direction 34 of the examination table 19, the two cable bundles 31 and thus also the surface wave trap 32 are arranged in a central region 35 at the underside 33 of the examination table 19. In the present embodiment, two cable bundles 31 are arranged parallel to each other in a central region 35 of the examination bed 19. Furthermore, in the present embodiment, the first cable bundle 31 is arranged at the underside 33 of the examination bed 19 mirror-symmetrically to the second cable bundle 31 with respect to the arrangement of the surface wave trap 32.
The two cable bundles 31 each have a multicore coaxial cable 36 with a maximum diameter 37 of between 4mm and 10mm between the plug contact 26 and the connecting element 29. Preferably, the two cable bundles 31 have multicore coaxial cables 36 with maximum diameters 37 between 4mm and 8 mm. Preferably, the two cable bundles 31 have multicore coaxial cables 36 with maximum diameters 37 between 4mm and 6 mm. Preferably, the two cable bundles 31 have multicore coaxial cables 36 with maximum diameters 37 between 4mm and 5 mm. Preferably, the two cable bundles 31 have multicore coaxial cables 36 (fig. 3) with a diameter 37 of at most 5.0 mm. Preferably, the multi-core coaxial cable 36 has a plurality of single-core coaxial cables 38 and single-core signal cables 39. The multi-core coaxial cable 36 may include, for example, eighteen single-core coaxial cables 38, twenty-three single-core signal cables 39, and a single-core power supply line. Each single core coaxial cable 38 here has a maximum diameter of between 0.3mm and 1.2 mm. Preferably, each single core coaxial cable 38 has a maximum diameter between 0.3mm and 1.0 mm. Preferably, each single core coaxial cable 38 has a maximum diameter between 0.3mm and 0.8 mm. Preferably, each single core coaxial cable 38 has a maximum diameter between 0.3mm and 0.7 mm. Preferably, each single core coaxial cable 38 has a maximum diameter between 0.3mm and 0.6 mm. Each of the three plug contacts 26 has a fixed assignment to the single-core coaxial cable 38 and/or the single-core signal cable 39 of the first cable bundle 31 and/or to the single-core coaxial cable 38 and/or the single-core signal cable 39 of the second cable bundle 31.
The examination table 19 also has a further plug-in contact 40 which is likewise formed as a socket. The additional plug contact 40 forms a fitting unit 27 for connecting to the fitting unit 27, for example, a back coil. The additional plug-in contact 40 is arranged at the foot end of the examination table 19 and/or in the middle region of the examination table 19 in the longitudinal direction. The additional plug-in contact 40 is likewise connected to the connecting element 29 by means of an additional cable bundle 41 of the patient support device 18, wherein the additional cable bundle 41 is arranged within the examination couch 19, preferably also at the underside 33 of the examination couch 19.
Patient support device 18 has a further cable bundle 42 arranged between connecting element 29 of patient support device 18 and coupling unit 23. The further cable bundle 42 is here arranged within the base unit 22. Three of the further cable bundles 42 are each assigned to one of the three plug contacts 26 provided at the head end 25 of the examination table 19, so that each of the three plug contacts 26 is provided with its own further cable bundle 42 for data transmission. The three further cable bundles 42 have a larger diameter than the two cable bundles 31 arranged between the three plug contacts 26 and the connecting element 29 in the examination table 19. A fourth cable bundle of the further cable bundles 42 is assigned to the plug-in contact 40 arranged at the foot end 40 of the examination table 19.
In the state in which the patient support apparatus 18 is coupled to the scanner unit 11, the coupling unit 23 of the patient support apparatus 18 is connected and/or coupled with the coupling unit 24 of the magnetic resonance apparatus 10 and/or the scanner unit 11. By means of the two coupling units 23, 24, the three plug contacts 26 are connected to a control unit and/or receiving electronics 28 of the magnetic resonance apparatus 10 for data exchange.
The magnetic resonance apparatus 10 shown in fig. 1 may of course comprise other components that are typical of magnetic resonance apparatuses 10. Furthermore, the general operation of the magnetic resonance apparatus 10 is known to the person skilled in the art, so that a detailed description of the other components is omitted.
An alternative embodiment of patient support apparatus 100 is shown in fig. 4. Components, features and functions which remain substantially unchanged are in principle numbered with the same reference numerals. The following description is essentially limited to the differences from the embodiment in fig. 1 to 3, wherein reference is made to the description of the embodiment in fig. 1 to 3 with respect to the components, features and functions that remain unchanged.
The patient support apparatus 100 in fig. 4 differs from the patient support apparatus 18 in fig. 1 and 2 in that the patient support apparatus 100 in fig. 4 includes a patient support apparatus 100 fixedly disposed at the scanner unit 11. Whereby a coupling unit for coupling the patient support apparatus 100 to the scanner unit 11 is omitted. Patient support apparatus 100 has an examination couch 101 and a base unit not shown in detail in fig. 4. The examination table 101 has three plug-in contacts 103. The arrangement and the formation of the plug-in contact 103 at the examination bed 101 correspond here to the arrangement and the formation of the plug-in contact 26 in fig. 1 and 2 referred to in this connection. Furthermore, the examination table 101 has a connecting element 104 and two cable bundles 105, wherein the two cable bundles 105 connect the three plug contacts 103 to the connecting element 104. The embodiment and arrangement of the two cable bundles 105 and the connecting element 104 correspond here to the embodiment and arrangement of the two cable bundles 31 and the connecting element 29 in fig. 1 and 2 to which reference is made.
The patient support apparatus 100 likewise has three further cable bundles 106 arranged between the connection element 104 of the magnetic resonance apparatus 10 and the receiving electronics 28. The three further cable bundles 106 are here directly connected to the receiving electronics 28 and the connecting element 104. The three further cable bundles 106 are here preferably arranged in the base unit. Each of the three further cable bundles 106 is assigned to one of the three plug contacts 103, so that each of the three plug contacts 103 is provided with its own further cable bundle 106 for data transmission. The three further cable bundles 106 are formed here in a manner corresponding to the further cable bundles 42 in the description of fig. 1 and 2.
Fig. 5 shows an alternative embodiment of the arrangement of two cable bundles 200 within the examination bed 19, 101, in particular between the plug contact 26, 103 and the connecting element 29, 104. Components, features and functions which remain substantially unchanged are in principle numbered with the same reference numerals. The following description is essentially limited to the differences from the embodiment in fig. 1 to 4, wherein reference is made to the description of the embodiment in fig. 1 to 4 with respect to the components, features and functions that remain unchanged.
The two cable bundles 200 are likewise arranged parallel to each other within the examination bed. Each of the two cable bundles 200 has a plurality of surface wave traps 202. Furthermore, the first cable harness 200 is arranged mirror-symmetrically to the second cable harness 200 with respect to the arrangement of the surface wave traps 202.
Further, the first cable bundle 200 and the second cable bundle 200 have a plurality of capacitive resistors 203 and/or a plurality of short circuits. Each of the surface wave traps 202 of the first cable bundle 200 is connected to a surface wave trap 202 of the second cable bundle 200, which is arranged mirror-symmetrically to the respective one of the surface wave traps 202 of the first cable bundle 200, by means of a capacitive resistor of the capacitive resistors 203 and/or a short-circuit.
Another arrangement and/or design of the cable bundle 200 in fig. 5 corresponds here to an embodiment of the arrangement and/or design of the cable bundle 26 described in fig. 1 and 2.
Fig. 6 shows a further alternative embodiment of the arrangement of the two cable bundles 300 in the examination bed 19, 101, in particular between the plug contact 26, 103 and the connecting element 29, 104. Components, features and functions which remain substantially unchanged are in principle numbered with the same reference numerals. The following description is essentially limited to the differences from the embodiment in fig. 1 to 5, wherein reference is made to the description of the embodiment in fig. 1 to 5 with respect to the components, features and functions that remain unchanged.
The two cable bundles 300 are likewise arranged parallel to each other within the examination bed 301. Each of the two cable bundles 300 has a plurality of surface wave traps 302. Furthermore, first cable harness 300 is arranged offset from second cable harness 300 in terms of the arrangement of surface wave traps 302, so that surface wave traps 302 of first cable harness 300 are arranged offset from surface wave traps 302 of second cable harness 300. In particular, the surface wave trap 302 of the first cable bundle 300 is arranged offset from the surface wave trap 302 of the second cable bundle 300 in the z-direction and/or in the longitudinal direction of the examination table.
Another arrangement and/or design of the cable bundle 300 in fig. 6 corresponds here to an embodiment of the arrangement and/or design of the cable bundle 26 described in fig. 1 and 2.
Fig. 7 shows a further alternative embodiment of the arrangement of the two cable bundles 400 within the examination bed 19, 101, in particular between the plug contact 26, 103 and the connecting element 29, 104. Components, features and functions which remain substantially unchanged are in principle numbered with the same reference numerals. The following description is essentially limited to the differences from the embodiment in fig. 1 to 6, wherein reference is made to the description of the embodiment in fig. 1 to 6 with respect to the components, features and functions that remain unchanged.
The first cable bundle 400 and the second cable bundle 400 have a common surface wave trap 402. The two cable bundles 400 are connected to one another here, for example, via their conductive sheaths.
Another arrangement and/or design of the cable bundle 400 in fig. 7 corresponds here to an embodiment of the arrangement and/or design of the cable bundle 26 described in fig. 1 and 2.
While the details of the present utility model have been illustrated and described in detail by the preferred embodiments, the present utility model is not limited by the disclosed examples, but other modifications can be derived therefrom by those skilled in the art without departing from the scope of the present utility model.

Claims (16)

1. A patient support apparatus configured for moving a patient into a patient receiving region of a magnetic resonance apparatus, the patient support apparatus comprising:
an examination couch, which is movably formed in the longitudinal direction of the examination couch,
two or more plug contacts provided at the head end of the examination bed and configured for connecting a fitting unit via the examination bed,
a connecting element provided at the foot end of the examination bed,
at least one cable harness connecting the two or more plug contacts with the connecting element,
the cable harness is characterized in that the number of the cable harnesses is smaller than the number of the plug contact portions.
2. The patient support apparatus of claim 1,
wherein the at least one cable harness has a plurality of surface wave traps.
3. The patient support apparatus of claim 2,
wherein the surface wave trap comprises a coaxial surface wave trap.
4. The patient support apparatus of claim 2,
characterized in that the at least one cable bundle with the surface wave trap is arranged in a central region in the transverse direction of the examination bed.
5. The patient support apparatus of claim 3,
characterized in that the at least one cable bundle with the surface wave trap is arranged in a central region in the transverse direction of the examination bed.
6. The patient support apparatus of any one of claims 1 to 5,
characterized in that the at least one cable harness is arranged at the underside of the examination bed.
7. The patient support apparatus of any one of claims 1 to 5,
characterized in that said at least one cable bundle has a multicore coaxial cable with a maximum diameter between 4mm and 10 mm.
8. The patient support apparatus of claim 7,
wherein the multi-core coaxial cable comprises a plurality of single-core coaxial cables, wherein each of the single-core coaxial cables has a maximum diameter of 0.3mm to 1.2 mm.
9. The patient support apparatus of any one of claims 1 to 5,
characterized in that the examination bed has three plug contacts arranged at the head end of the examination bed for connecting a fitting unit and two cable bundles arranged between the three plug contacts and the connecting element.
10. The patient support apparatus of claim 9,
the device is characterized in that each of the three plug contacts has a fixed assignment to a single-core coaxial cable and/or a single-core signal cable of a first cable bundle of the two cable bundles and/or a fixed assignment to a single-core coaxial cable and/or a single-core signal cable of a second cable bundle of the two cable bundles.
11. The patient support apparatus of claim 9,
wherein the two cable bundles have a common surface wave trap.
12. The patient support apparatus of claim 9,
wherein a first of the two cable bundles is arranged mirror-symmetrically with respect to a second of the two cable bundles with respect to the arrangement of the surface wave trap.
13. The patient support apparatus of claim 12,
the first cable harness and/or the second cable harness have/has/have a plurality of capacitive resistors and/or a plurality of short-circuit circuits, wherein the respective one of the surface wave traps of the first cable harness is/are connected to the respective one of the surface wave traps of the second cable harness, which are arranged mirror-symmetrically to the respective one of the surface wave traps of the first cable harness, by means of the capacitive resistors and/or the short-circuit circuits.
14. The patient support apparatus of claim 9,
the surface wave trap of a first cable bundle of the two cable bundles is arranged in a staggered manner with respect to the surface wave trap of a second cable bundle of the two cable bundles.
15. The patient support apparatus of any one of claims 1 to 5,
the examination table is characterized in that it has three further cable bundles which are arranged between the connecting element and a control unit of the magnetic resonance apparatus and/or between the connecting element and a coupling unit, wherein the three further cables are each assigned to a plug contact and have a diameter, wherein the diameter is greater than the diameter of the at least one cable bundle.
16. A magnetic resonance apparatus characterized in that it has a patient support apparatus according to any one of claims 1 to 15.
CN202320954100.2U 2022-04-26 2023-04-25 Patient support apparatus and magnetic resonance apparatus having a patient support apparatus Active CN220236870U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202022102238.0 2022-04-26
DE202022102238.0U DE202022102238U1 (en) 2022-04-26 2022-04-26 Patient support device and a magnetic resonance device with a patient support device

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Publication Number Publication Date
CN220236870U true CN220236870U (en) 2023-12-26

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Application Number Title Priority Date Filing Date
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