Medical image diagnostic apparatus

Abstract

To reduce the number of composite cables for connecting a coil, per bunch.SOLUTION: A medical image diagnostic apparatus includes a power supply unit, a frame, a bed, and a driving unit. The bed has a plurality of connectors which supply a plurality of wireless coils with power from the power supply unit and do not receive data from the plurality of wireless coils. The driving unit positions the bed with respect to the frame.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The embodiments disclosed in this specification and the drawings relate to medical imaging diagnostic devices.

[0002] Specifically, the present disclosure relates to a medical imaging diagnostic device that holds a patient during imaging. In one embodiment, it relates to a bed for use in any of Magnetic Resonance Imaging (MRI), magnetic resonance spectroscopy, Computed Tomography (CT), and Positron Emission Tomography (PET).

Background Art

[0003] A detachable patient bed (hereinafter referred to as a bed) may be used together with a medical imaging diagnostic device including a scanner for MRI, CT, or PET. By using a detachable bed, not only the number of patient movements (e.g., movement from a hospital bed to a stretcher, further to a scanner-compatible stretcher, and back to the hospital bed again) is reduced, but also the movement of the patient from the scanner and the associated magnetic field at the end of imaging or in an emergency is facilitated. Further, outside the scan room, patient preparation for scanning can be performed on the bed, enabling more efficient use of the medical imaging diagnostic device in a busy facility that uses multiple detachable beds to separate patient preparation, scanning, and work.

[0004] Medical imaging devices come in various shapes and forms, but many are annular in shape, with the patient being imaged within a central opening extending along the length of the machine. Figure 1A shows a known MRI system with a corresponding patient bed. Figure 1A illustrates a magnet cradle (hereinafter referred to as the cradle) 103, a bore 110, a support device 105, a patient bed 130, a base unit 152, and a patient bed support unit 154. Both the base unit 152 and the patient bed support unit 154 include multiple transmission devices for positioning the patient, which increase the weight of the patient bed 130. Some MRI devices have an imaging volume defined by a gap surrounded by large plates placed on either side of the patient or above and below the patient. Although an annular medical imaging device is illustrated herein, the technology disclosed herein is applicable to all types of medical imaging devices.

[0005] In magnetic resonance imaging (MRCA) acquisition, it can be beneficial to place a local radio frequency (RF) coil in or near the subject during imaging. By placing the local RF coil, used for transmitting the MRCA excitation signal, receiving the MRCA signal, or both, in close proximity, the RF coupling between the RF coil and the subject can be substantially improved. Figure 1B shows internal details of a known patient bed 130. In Figure 1B, the patient bed 130 is provided with seven coil data ports, two of which are labeled (135A, 135B). As illustrated, the coil data ports carry power, control, and data, and in known configurations, at least 16 data signals are used per port. Because this data traffic includes imaging data, the number of data cables accommodating the data passed from the RF coil to the coil data ports is large (e.g., 100 or more). The coil data ports (e.g., 135A, 135B) are connected to an analog multiplexer 190 via a series of cables 140A / 140B, and further connected to an analog-to-digital receiver 194, which has fewer channels and is located away from the bed 130. Alternatively, the analog multiplexer 190 could be omitted, allowing more channels to be placed in the analog-to-digital receiver 194; however, this would increase the cost of the analog-to-digital receiver 194.

[0006] As a result, one drawback of local RF coils is that data from the coils must be transmitted separately by numerous cables 140A / 140B. In a typical configuration, the cables extend from an external control unit of the scanner into the bore, for example, along the bed 130, or inside the bed 130, along with the top pallet, into the bore of the magnetic resonance scanner.

[0007] Here, the cable needs to be flexible enough to accommodate the slack in the cable as the top pallet is pulled out onto the bed 130, and to extend in response to the movement of the local RF coil as it moves into the scanner bore with the subject. In addition, since one patient may require multiple RF coils for different parts of the body, multiple power connectors may be included in the bed. The connectors may consist of female jacks or male plugs, one of which may be mounted individually or as part of a sliding electrical connector strip or sliding receptacle.

[0008] Furthermore, the configuration of known magnetic resonance scanner beds and top pallets is typically a composite assembly that includes a bed height adjustment mechanism and a calibrated and automated mechanical top pallet movement mechanism to smoothly move the top pallet from the bed to a precise position within the bore of the magnetic resonance scanner for data acquisition, and to smoothly return the top pallet from the bore to the bed after data acquisition is complete. Integrating power cables into such a composite assembly without interfering with the bed height adjustment mechanism and top pallet movement mechanism increases the complexity, as well as the cost and weight of the system.

[0009] The above background information is intended solely to illustrate the overall structure of the subject matter in this embodiment and is not intended to limit the disclosure of this embodiment or its aspects. In particular, the content disclosed in the above background information may include novel technologies and may not constitute a description of prior art. [Prior art documents] [Patent Documents]

[0010] [Patent Document 1] U.S. Patent Application Publication No. 2015 / 0028873 [Patent Document 2] U.S. Patent Application Publication No. 2018 / 0003791 [Patent Document 3] U.S. Patent Application Publication No. 2010 / 0072997 Specification [Patent Document 4] U.S. Patent Application Publication No. 2007 / 0039101 [Patent Document 5] U.S. Patent No. 7634827 [Patent Document 6] Dutch Patent Application Publication No. 8802874 [Patent Document 7] International Publication No. 2009 / 150575 [Non-patent literature]

[0011] [Non-Patent Document 1] “Wireless Data and Power Link To Detachable Couch”,AN IP.COM PRIOR ART DATABASE TECHNICAL DISCLOSURE,THE IP.COM JOURNAL,No.IPCOM000259954D,October 2,2019,2 pages [Non-Patent Document 2] Kevin J.WU,et al.,”Magnetic resonance conditional paramagnetic choke for suppression of imaging artifacts during magnetic resonance imaging”,PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS,PART H:JOURNAL OF ENGINEERING IN MEDICINE,Vol.232,Issue 6,April 24,2018,pages 597-604 [Overview of the Initiative] [Problems that the invention aims to solve]

[0012] One of the problems that the embodiments disclosed herein and in the drawings aim to solve is to reduce the number of composite cables per bundle for connecting coils. However, the problems that the embodiments disclosed herein and in the drawings aim to solve are not limited to the above problem. Problems corresponding to the effects of each configuration shown in the embodiments described later can also be positioned as other problems. [Means for solving the problem]

[0013] The medical imaging diagnostic apparatus according to this embodiment comprises a power supply unit, a stand, a patient bed, and a drive unit. The patient bed has a plurality of connectors that supply power from the power supply unit to a plurality of wireless coils, and a plurality of connectors that do not receive data from the plurality of wireless coils. The drive unit positions the patient bed relative to the stand. [Brief explanation of the drawing]

[0014] By considering and referring to the following detailed description along with the attached drawings, the many advantages of this embodiment will be easily and deeply understood.

[0015] [Figure 1A] Figure 1A shows a known embodiment of an MRI system. [Figure 1B] Figure 1B shows details of the interior of a known embodiment of an MRI system bed, including a large bundle of cables necessary for routing data from various ports within the bed. [Figure 2] Figure 2 shows an MRI system including a detachable patient table according to one embodiment. [Figure 3] Figure 3 shows one embodiment that includes a power connection area as part of a detachable bed. [Figure 4A](a) of FIG. 4A shows an embodiment of a power connection area using a first series of fixed DC power connectors, (b) of FIG. 4A shows an embodiment of a power connection area using a second series of fixed DC power connectors, and (c) of FIG. 4A shows an embodiment of a power connection area using a slidable electrical connector strip to provide a movable DC power connector. [Figure 4B] (d) of FIG. 4B shows an embodiment of a power connection area using a series of slide-type receptacle connectors that provide a movable DC power connector, and (e) of FIG. 4B shows an embodiment of a power connection area using a third series of connectors including different types of connectors for carrying different types of signal / communication protocols. [Figure 5] FIG. 5 shows a patient in a supine position on a detachable hospital bed according to an embodiment. [Figure 6] FIG. 6 is a block diagram showing subcomponents used for wireless transmission of image data and control data of the present disclosure. [[ID=eleven]] [Figure 7] FIG. 7 is a flowchart showing a method of using a detachable hospital bed together with an MRI apparatus and an RF coil for wirelessly transmitting data. **Embodiments for Carrying Out the Invention**

[0016] Hereinafter, embodiments of a medical imaging diagnostic apparatus will be described in detail with reference to the drawings.

[0017] <pe In this disclosure, in order to reduce the weight of the bed by eliminating the motor and motor control unit, several mechanical components for positioning the bed within the imaging area (e.g., magnetic bore) are moved outside the bed. These mechanical components include motors and positioning hardware for controlling the horizontal and vertical positioning of the bed. Furthermore, in some embodiments, cabling with RF coils is reduced. RF coils for receiving RF signals (these RF coils are often positioned as local RF coils on or near the patient on the bed) are controlled by (a) wireless or (b) data communication via power cables. These RF coils may be powered by various electrical connections, such as sliding receptacles or sliding electrical connector strips mounted on the edge of the bed. The embodiments of the bed described herein address not only safety concerns such as the possibility of RF burns from RF cabling and RF connectors in close proximity to the patient, but also reduce the possibility of entanglement and weight of longer cables and cable pull-in devices.

[0018] The bed may further supply power to any RF coils required for medical imaging. Such coils may be referred to as “wireless” coils if they do not include a data cable connected to them (or, in embodiments that operate both wired and wirelessly, operate without a data cable connected). Thus, as used herein, “wireless coils” may include detachably connected power lines / cables or may operate on batteries recharged by power connectors described herein. Notwithstanding that the information described herein does not exhaustively or completely disclose the entire scope of the technology or its embodiments.

[0019] Here, we refer to the drawings, where similar reference numerals indicate the same or corresponding parts across multiple figures. Figure 2 shows an MRI system including a detachable bed 202 according to one embodiment. In Figure 2, the frame 103 and bore 110 are shown together with the detachable bed 202 approaching the bore 110. The top plate of the bed 202 is shown resting on the bed base 204, and a power connector 206 connected to the bed base 204 is shown just before being attached to a power connector 256 that receives power from a power unit 290. Here, the bed 202 includes transport wheels 210 and rails 260 that guide the top plate of the bed 202 into the bore 110. In one embodiment, power from the power connector 256 of the frame 103 is connected (via the power connector 206) to one or more connectors located on the top plate of the bed 202 by cable wiring within the bed 202. In another embodiment, power is supplied from a power supply unit located outside the room housing the frame 103 via a power cable connected to the bed 202. Furthermore, in another embodiment, the bed 202 includes a battery which, after being charged (for example, via a wall socket before the bed 202 is brought into the room containing the frame 103), supplies power to the RF coil while the bed 202 is not connected to a power source.

[0020] Figure 3 shows one embodiment in which power (not data) is supplied to one or more power connection areas 310 located on opposing sides of the top surface of the bed 202. In one embodiment in which power is supplied to the bed 202 by a power connector 256 or via a power cable, the bed 202 may further include a retractable power cord to keep the power lines to the top surface short and out of the way. The connections within the power connection areas 310 are shown in detail in Figures 4A and 4B. Although Figure 3 shows an example in which the bed 202 has two power connection areas 310, the bed 202 may have a number other than two (e.g., one or three or more) of power connection areas 310. Furthermore, in addition to the power connection areas 310 on both sides, or instead, the bed 202 may include at least one power connection area (not shown) at one end of the bed 202. Furthermore, the bed 202 may include a power connection area 312 located beneath the patient when the patient is placed on the bed 202. Such a power connection area 312 can be used to supply power to an RF coil placed beneath the patient during imaging.

[0021] As shown in Figures 4A and 4B, the power connection area 310 can have several different configurations. Figure 4A(a) shows one embodiment of the power connection area 310 using a first series of fixed power connectors 400A. These connectors may have multiple poles, such as a three-pole configuration of +12V, GND, and -12V, or a two-pole configuration of +12V and GND, and are designed to carry power (not data from the RF coil). Here, the connectors are generally described as DC power connectors that carry DC power, but in another embodiment, the connectors may carry low-voltage AC power (e.g., 12V AC) that has been converted to DC power using an AC / DC converter (e.g., rectifier) ​​in the RF coil. In the embodiment shown in Figure 4A(a), the first series of fixed power connectors 400A are circular connectors into which a short power cord can be inserted. In one such configuration, the side of the power connector 400A is connected to a first-polarity power supply (e.g., ground, -5V, or 12V, respectively), and the bottom of the power connector 400A is connected to a second-polarity power supply (e.g., +5V, +5V, and +12V, respectively). In yet another configuration, additional power connections may be provided along the cylindrical side of the power connector 400A such that a first portion of the connector located within the power connector 400A contacts the first polarity, a second portion of the connector located within the power connector 400A contacts the second polarity, and a third portion of the connector located within the power connector 400A contacts the third polarity. Those skilled in the art will recognize that this is analogous to a cylindrical audio connector (which may further include a microphone connection) that includes connections for the right channel, left channel, and ground.

[0022] As another example, Figure 4A(b) shows an embodiment of a power connection area 310 utilizing a second series of fixed DC power connectors 400B that are square in shape. In the embodiment shown in Figure 4A(b), the sides of the power connector 400B may be connected to multiple different polarities as described above with respect to Figure 4A(a). Further sides of the power connector 400B may be connected to connections other than power (e.g., a clock). The power connector 400B may also be marked to prevent incorrect insertion of the corresponding cable. Furthermore, the power connector 400B may be a connection using standard power connections, such as USB-A, USB-B, and USB-C type ports, and may include circuitry for determining the power level applied from the bed 202 to any connected device.

[0023] As yet another example, Figure 4A(c) shows an embodiment of a power connection area 310 using a slidable electrical connector strip to make the DC power connector 400B movable. In the embodiment shown in Figure 4A(c), the DC power connector 400B can be slid toward either end of the bed 202, although in a grouped state. In a configuration using a power connection area 310 with slidable electrical connector strips on each side, one side may be slid toward the end of the bed 202 that enters the bore, and the other side may be slid toward the end of the bed 202 furthest from the bore.

[0024] Figure 4B(d) shows one embodiment of a power connection area 310 using a series of sliding receptacle connectors 410, each independently slidable within a channel 420, to allow multiple DC power connectors 400A to be moved to various locations along one or more sides of the bed 202. Furthermore, in other embodiments, as shown in Figure 4B(e), the power connection area 310 may include two or more types of fixed or movable connectors. For example, the power connection area may include (1) a first set of power connections that provide power at a first level, and (2) a second set of connections (e.g., coaxial connections) that provide power at a second level, which may include additional communication information (e.g., a clock signal that can be broadcast to all power connectors and depends on interference caused by the transmission of B1RF pulses). Using the configurations in Figures 4A and 4B, multiple RF coils can be inserted at multiple locations along the top of the bed 202 with minimal cabling to the RF coils. In embodiments where the power cable needs to move to accommodate the movement of the power connection area 310, the bed 202 may further include a power cord retraction device and / or power cord tensioning device to remove slack in the power cable so as not to interfere with the movement of the bed 202. Furthermore, to minimize weight, the bed 202 may be powered by a battery (692 in Figure 6) that is integrated with or detachable from the bed 202. The battery may be part of the frame 103, part of the bed 202, or external to both the frame 103 and the bed 202.

[0025] The cable between the RF coil and the power connector may be of any type, such as coaxial cable, triaxial cable, parallel cable, biaxial cable, shielded twisted pair cable, or unshielded twisted pair cable, but is not limited to these. In connections where multiple connectors are connected to the same RF coil, a combination cable may be used, including one in which two of the above cables are fixed with an overmolding. Furthermore, the cable may be permanently attached to the bed side and detachably connected to the RF coil side, or detachably attached to the bed side and permanently connected to the RF coil side, or detachably attached to the bed side and detachably connected to the RF coil side. In all configurations, the cable should be as short as possible, preferably so as not to come into contact with the patient.

[0026] Figure 5 shows a patient placed on the tabletop of a bed 202, with the tabletop positioned on rails 260 within the bore 110 of the scanning device. In Figure 5, the patient is shown with three RF coils, including a surface coil 512, a body coil 514, and a head coil 516. These coils are electrically connected to the tabletop of the bed 202 via three sliding receptacle connectors 410A, 410B, and 410C. In one embodiment, the surface coil 512, body coil 514, and head coil 516 are powered via sliding receptacle connectors 410A, 410B, and 410C, but are controlled by wirelessly transmitted control data, and image data may also be wirelessly transmitted to the system's mounting section without crossing the coil ports (see arrow 502). The wireless protocol may include, for example, IEEE 802.11 Wi-Fi, Bluetooth®, Bluetooth® LE, Near Field Communication, WirelessHART, and various other wireless protocols. In other embodiments (not shown), control data and image data may be transmitted via the power cable of the detachable bed 202. In this embodiment, power may be separated from the data by using a combination of an RF choke and a capacitor.

[0027] Figure 6 is a block diagram showing the subcomponents used for wireless transmission of image data and control data in this disclosure. Figure 6 shows a body coil 514 connected to a low-noise amplifier (LNA) 610, such as a preamplifier. The low-noise amplifier 610 is connected to either a variable-gain amplifier (VGA) or a gain-control amplifier (GCA) 620, and the output of the VGA / GCA 620 passes through a band-pass filter (BPF) 630. The output of the BPF 630 is detected and converted by an analog-to-digital converter (ADC) 640. The ADC 640 passes its output digital signal to a data processing module 650. The data processing module 650 includes subcomponents such as one or more processors, RAM (Random Access Memory) or ROM (Read Only Memory), and one or more UARTs (Universal Asynchronous Receiver Transmitters). The data processing module 650 outputs a digital signal to the transmitter module 660, which outputs image data to the image data receiver via the transmitter antenna 662. This receiver may be located elsewhere within the frame 103 adjacent to the bore 110, or it may be located away from the frame 103. This is also indicated by the upward arrow 502 in Figure 5. Furthermore, Figure 6 shows a receiving antenna 672. This receiving antenna 672 may be used to receive control data or clock data, as indicated by the downward arrow 502 in Figure 5. When receiving control data or clock data, the data is received by the receiving antenna 672, passed to the transceiver 652 and the data processing module 650, and then passed to the ADC 640. Alternatively, the received control data may be passed directly to the PLL 642 and then to the ADC 640.The control data passes through the BPF630, VGA / GCA620, and LNA610 before reaching the RF coil (body coil 514). At the RF coil, the control data executes commands (such as turning the device on / off or adjusting other imaging parameters).

[0028] Furthermore, Figure 6 shows battery subcomponents such as a power connector 256 which is a DC plug, a battery controller 690, a DC / DC converter 680, and power distribution to the RF coil component. This power distribution may include, for example, a power connection area 310 or 312 using a sliding electrical connector strip, or a power connection area 310 or 312 using a sliding receptacle connector 410. Any power connection area 312 using a sliding electrical connector strip can support an RF coil that may be placed under the patient. In this configuration, the RF coil may be connected directly to the connector strip without using additional cabling (for example, using the connector on the underside of the RF coil that connects directly to the power connection area 312 using a sliding electrical connector strip).

[0029] Figure 7 is a flowchart illustrating a method 700 of using a detachable bed with a wirelessly connected RF coil in an MRI system to which data is wirelessly transmitted. In the step of block 710, the patient is placed on the bed 202. This step may be performed by placing one or more patients on multiple beds 202 away from the cradle 103 in order to make the most of the medical imaging equipment. In this case, one or more patients can be prepared for imaging while the previous patient is being imaged. In the step of block 720, the bed 202 on which the patient is placed is transported to the cradle 103. This step can be performed by the bed base 204 and transport wheels 210 shown in Figure 2. In the step of block 730, the bed 202 is connected to the drive unit of the cradle 103. This drive unit may be integrated with the cradle 103 or incorporated into the bed 202. The drive unit may also be a drive unit capable of moving the bed 202 horizontally and / or vertically within the bore 110. In the step of block 740, the electrical board of the bed 202 is connected to the power supply of the frame 103, such as power connectors 206 and 256 shown in Figure 2. In the step of block 750, the electrical connections of the bed 202 are connected to the RF coils. These electrical connections may carry a synchronization clock signal. This step may be performed, for example, by connecting the RF coils 512, 514, or 516 to various points in the power connection area 310 or 312 using a slidable electrical connector strip. In the step of block 760, the bed 202 is positioned horizontally or vertically within the bore 110. Furthermore, in the step of block 760, the RF coils wirelessly receive control commands, for example, to start or change the intensity or timing of the high frequency in the RF coils. In step 770, image data is collected from the patient using an RF coil, and in step 780, the image data is wirelessly transmitted from the RF coil to a receiver located inside the rig 103 or in another room away from the rig 103.This step may be performed by using wireless protocols such as 4G or 5G cellular, Bluetooth®, IEEE 802.11 Wi-Fi, LoRA®, WirelessHART, or ZigBEE®.

[0030] In other embodiments, the scan control data received in step 760 may not be received wirelessly, but rather transmitted via a filtered power supply connection, including an RF choke for separating DC power from the signal. In this embodiment, the image data collected in step 770 may also be transmitted via a power cable.

[0031] In another embodiment, a synchronization clock signal may be transmitted to the RF coil via a DC power cable.

[0032] (Explanation of terms) The terms used herein are used to describe specific embodiments and are not intended to limit them.

[0033] Furthermore, as used herein, the term “one” is intended to include multiple unless the context clearly indicates otherwise.

[0034] Furthermore, as used herein, the term “to include” specifies the presence of the features, steps, operations, elements and / or components described, but does not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or groups thereof.

[0035] Furthermore, as used herein, the terms “and / or” include any and all combinations of one or more of the related enumerated items, and may be abbreviated as “ / ”.

[0036] Furthermore, as used herein, the terms “preferred” and “preferred” mean embodiments of the technology that provide particular advantages under specific circumstances. However, other embodiments may also be preferred under the same or other circumstances. Moreover, the description of one or more preferred embodiments does not mean that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the technology.

[0037] This description and the specific examples provided illustrate embodiments of the technology, but are intended for illustrative purposes only and not to limit the scope of the technology. Furthermore, the description of multiple embodiments having the described features is not intended to exclude other embodiments having additional features or other embodiments incorporating different combinations of the described features. The specific examples are provided for illustrative purposes to illustrate methods of manufacturing and using the components and methods of the technology, and are not intended to indicate that any particular embodiment of the technology has been manufactured or tested, or has not been manufactured, unless explicitly stated otherwise.

[0038] According to at least one embodiment described above, the number of composite cables per bundle for connecting coils can be reduced.

[0039] While several embodiments have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be implemented in a variety of other forms, and various omissions, substitutions, modifications, and combinations of embodiments are possible without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents.

[0040] Furthermore, embodiments of this disclosure may be as described in the following appendix.

[0041] (Note 1) Power supply unit, The mounting frame and A bed having multiple connectors that supply power from the power supply unit to multiple wireless coils, and which do not receive data from the multiple wireless coils, A drive unit for positioning the bed relative to the frame and A medical imaging diagnostic device equipped with [a specific feature].

[0042] (Note 2) The bed further comprises a power connector for connecting to the connector of the frame, The power supply unit may supply power to the bed via the power connector of the frame and the power connector of the bed.

[0043] (Note 3) The power supply unit is located outside the frame. The bed may further include a power connector for connecting to the power supply unit located outside the frame.

[0044] (Note 4) The power supply unit is a battery housed in the bed, and the battery may be rechargeable via at least one of the power connector of the frame and the external power connection points of the frame and the bed.

[0045] (Note 5) The bed may be configured to be detachably connected to the frame.

[0046] (Note 6) The plurality of connectors may supply DC power to the plurality of wireless coils.

[0047] (Note 7) The plurality of connectors may supply DC power and a clock signal to the plurality of wireless coils.

[0048] (Note 8) The plurality of connectors may supply AC power to the plurality of wireless coils.

[0049] (Note 9) The aforementioned multiple connectors may be integrated into a sliding receptacle.

[0050] (Note 10) The first connector among the plurality of connectors is integrated into the first sliding receptacle. The second connector among the plurality of connectors may be integrated into a second sliding receptacle that is slidable independently of the first sliding receptacle.

[0051] (Note 11) The system may further include a plurality of cables for connecting the plurality of connectors to the plurality of wireless coils, respectively.

[0052] (Note 12) The aforementioned plurality of cables may include a plurality of coaxial cables.

[0053] (Note 13) The aforementioned plurality of cables may include a plurality of triaxial cables.

[0054] (Note 14) The aforementioned plurality of cables may include a plurality of shielded twisted-pair cables.

[0055] (Note 15) The plurality of cables may be permanently fixed to the plurality of wireless coils.

[0056] (Note 16) The plurality of connectors may be connected to the position on the bed where the patient is placed during imaging.

[0057] (Note 17) The bed may further include at least one additional connector connected below the position where the patient is placed during imaging.

[0058] (Note 18) The drive unit for positioning the bed may be integrated with the frame.

[0059] As is evident, in consideration of the above description, many modifications and variations of the present invention are possible. Therefore, it is understood that the present invention may be carried out in ways other than those specifically described herein, within the scope of the appended claims. [Explanation of symbols]

[0060] 103 Magnetic stand 202 Patient Bed 290 Power Supply Units 206, 256 Power Connectors

Claims

1. A stand including a power supply unit and a circuit; a bed having a plurality of connectors for supplying power from the power supply unit to the plurality of wireless coils via a plurality of corresponding cables so that the plurality of wireless coils are conductively connected to the power supply unit during a scan performed by the medical image diagnostic apparatus; a drive unit for positioning the bed relative to the gantry; Equipped with during the scan, each of the plurality of wireless coils wirelessly transmits data to the circuit such that none of the plurality of connectors receives data from the plurality of wireless coils; the bed is not provided with other connectors for wired data connection to the plurality of wireless coils; Medical imaging diagnostic equipment.

2. the bed further comprises a first power connector for connecting to a second power connector on the cradle; the power supply unit supplies power to the bed via the first power connector and the second power connector; The medical image diagnostic apparatus according to claim 1 .

3. The bed is configured to be detachably connected to the gantry.

3. The medical image diagnostic apparatus according to claim 1.

4. the plurality of connectors supply DC power to the plurality of wireless coils.

4. The medical image diagnostic apparatus according to claim 1.

5. the plurality of connectors supply DC power and clock signals to the plurality of wireless coils.

5. The medical image diagnostic apparatus according to claim 1.

6. the plurality of connectors supply AC power to the plurality of wireless coils.

5. The medical image diagnostic apparatus according to claim 1.

7. The plurality of connectors are integrated into a sliding receptacle.

5. The medical image diagnostic apparatus according to claim 1.

8. a first connector of the plurality of connectors integrated into a first sliding receptacle; a second connector of the plurality of connectors integrated into a second sliding receptacle that is slidable independently of the first sliding receptacle; 5. The medical image diagnostic apparatus according to claim 1.

9. the plurality of cables includes a plurality of coaxial cables; 5. The medical image diagnostic apparatus according to claim 1.

10. A power supply unit; A stand and a bed having a plurality of connectors that supply power from the power supply unit to a plurality of wireless coils via a corresponding plurality of cables, the plurality of connectors not receiving data from the plurality of wireless coils; a drive unit for positioning the bed relative to the gantry; Equipped with the plurality of cables includes a plurality of triaxial cables; Medical imaging diagnostic equipment.

11. A power supply unit; A stand and a bed having a plurality of connectors that supply power from the power supply unit to a plurality of wireless coils via a corresponding plurality of cables, the plurality of connectors not receiving data from the plurality of wireless coils; a drive unit for positioning the bed relative to the gantry; Equipped with the plurality of cables includes a plurality of shielded twisted pair cables; Medical imaging diagnostic equipment.

12. the plurality of cables being permanently fixed to the plurality of wireless coils; 5. The medical image diagnostic apparatus according to claim 1.

13. the plurality of connectors are connected to the couch near a position where a patient is placed during imaging; 5. The medical image diagnostic apparatus according to claim 1.

14. A power supply unit; A stand and a bed having a plurality of connectors that supply power from the power supply unit to the plurality of wireless coils, the plurality of connectors not receiving data from the plurality of wireless coils; a drive unit for positioning the bed relative to the gantry; at least one additional connector connected to the couch below a position where a patient is positioned during imaging; A medical image diagnostic device comprising:

Images