Fault detection device for magnetic resonance coil
By using a plug-in unit and a terminal block to form a series circuit in the magnetic resonance coil fault detection device, the problems of time-consuming, labor-intensive, and inaccurate detection in the prior art are solved, and rapid and accurate fault detection is achieved.
Patent Information
- Application Number
- CN202423154284.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The existing magnetic resonance coil fault detection process is time-consuming, labor-intensive, and inaccurate, especially due to the compact design of the wiring terminals which leads to poor contact of the multimeter, affecting fault diagnosis.
A magnetic resonance coil fault detection device is designed, which uses a plug-in unit and a wiring terminal to form a series circuit. The device detects short circuit faults in real time through a prompting element, and the good contact between the plug-in terminal and the wiring terminal simplifies the detection process.
It enables rapid and accurate detection of magnetic resonance coil faults, improves detection efficiency and accuracy, and simplifies the operation process.
Smart Images
Figure CN223692506U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of medical apparatus and instruments, and particularly relates to a fault detection device of a magnetic resonance coil. BACKGROUND
[0002] The magnetic resonance coil is a very key component in a magnetic resonance imaging (MRI) system, and plays an important role in obtaining accurate and high-quality imaging results. Most of the magnetic resonance coils nowadays have multiple channels, such as 8 channels and 16 channels, and each channel is connected to a terminal of a wire port of the magnetic resonance coil.
[0003] During use, the magnetic resonance coil often has a coil short-circuit fault. The reason is that the circuit inside the coil channel is short-circuited, or the terminal connected to the coil channel is short-circuited. The short-circuit of the terminal is usually caused by blood, sand and other contaminants splashing onto a pair of conductive bodies of the terminal, causing the pair of conductive bodies to be electrically connected and resulting in a short circuit.
[0004] During fault detection, the traditional method is for a technician to measure the terminals corresponding to each channel one by one. During this process, the technician uses two probes of a multimeter to contact a pair of conductive bodies of the terminal, and observes whether the reading of the multimeter is zero. If the reading is zero, the channel and the corresponding terminal have no short-circuit fault. If the reading is not zero, it means that the channel and / or the corresponding terminal has a short-circuit fault. As can be seen, this fault detection process is time-consuming and laborious.
[0005] In addition, due to the stability and appearance requirements of the terminal, the pair of conductive bodies of the terminal are usually designed to be compact. It is difficult for the two probes of the multimeter to fully and stably contact the conductive bodies, and it is easy to cause poor contact or short circuit of the two probes, thereby seriously affecting the accuracy of fault judgment and causing unnecessary interference to medical diagnosis work. UTILITY MODEL CONTENTS
[0006] The utility model aims to provide a fault detection device of a magnetic resonance coil, which can quickly and accurately detect the fault of the magnetic resonance coil.
[0007] The utility model provides a kind of fault detection device of magnetic resonance coil, including several plug-in units.Each plug-in unit includes a plug-in terminal, a first wire, a second wire and a prompt element.The plug-in terminal can plug the terminal of the wiring port of magnetic resonance coil.A plug-in terminal includes a pair of first conductors, each terminal has a pair of second conductors, in the case where plug-in terminal and terminal are plugged, a pair of first conductors are electrically connected to a pair of second conductors respectively.One end of the first wire is electrically connected to one of a pair of first conductors.Another end of the second wire is electrically connected to another of a pair of first conductors, and the other end of the second wire is configured as ground terminal.Another end of the first wire is electrically connected to one end of the prompt element, and the other end of the prompt element is configured as power supply terminal.Power supply terminal and ground terminal are configured to form a power supply voltage between them.The prompt element can send a signal when current passes.
[0008] In the presence of power supply voltage, each plug-in unit connects a coil channel to form a series circuit. By setting several such series circuits, the fault detection device of magnetic resonance coil can simultaneously detect whether each coil channel and terminal exist short-circuit fault, effectively improve the detection efficiency; At the same time, the plug-in terminal and the terminal are plugged with each other, which is beneficial to realize good electrical connection and improve the accuracy of fault detection.
[0009] In another illustrative embodiment of the fault detection device of magnetic resonance coil, a housing is further included. The housing has an embedding part. The surface of the embedding part protrudes to form a plug-in seat along the plug-in direction. The plug-in seat can be inserted into the wiring port of the magnetic resonance coil along the plug-in direction. The plug-in terminal of each plug-in unit is fixed to the top surface of the plug-in seat along the plug-in direction. In the case where the plug-in seat is inserted into the wiring port of the magnetic resonance coil, each plug-in terminal is plugged with a terminal. This structure is simple and compact.
[0010] In another illustrative embodiment of the fault detection device of magnetic resonance coil, the prompt element is an LED lamp bead, and several prompt elements are arranged on the surface of the housing on the same side as the plug-in seat. This facilitates quick and easy access to fault detection results.
[0011] In another illustrative embodiment of the fault detection device of magnetic resonance coil, several prompt elements are arranged in a straight line. This structure is simple and convenient for numbering the prompt elements.
[0012] In another illustrative embodiment of the fault detection device of magnetic resonance coil, the arrangement of the several prompt elements is the same as that of the several plug-in terminals. The position of each prompt element in the queue of prompt elements is the same as that of the plug-in terminal connected thereto in the queue of plug-in terminals. This facilitates quick positioning of the faulty channel / terminal.
[0013] In another illustrative embodiment of the fault detection device for the magnetic resonance coil, a power supply module is further included. The power supply module connects the power supply end and the grounding end to form a power supply voltage between the power supply end and the grounding end. In this way, power is conveniently obtained without the need to obtain power from the magnetic resonance imaging system.
[0014] In another illustrative embodiment of the fault detection device for the magnetic resonance coil, the power supply module is a disposable battery or a rechargeable battery. The power supply module is simple and easy to obtain.
[0015] In another illustrative embodiment of the fault detection device for the magnetic resonance coil, the embedding portion is provided with a plurality of positioning holes. The wiring port is provided with a plurality of positioning pins. In the process of inserting the plug-in seat into the wiring port of the magnetic resonance coil in the plug-in direction, the plurality of positioning pins can be inserted into the plurality of positioning holes respectively to determine the insertion position of the wiring port. This structure is simple and facilitates quick positioning of the insertion position of the wiring port.
[0016] In another illustrative embodiment of the fault detection device for the magnetic resonance coil, the wiring terminal of the wiring port of the magnetic resonance coil is a male head, and the plug-in terminal is a female head. In this way, the magnetic resonance coil is conveniently connected to the fault detection device, facilitating its fault detection. BRIEF DESCRIPTION OF DRAWINGS
[0017] The following drawings only illustrate and explain the utility model and do not limit the scope of the utility model.
[0018] Figure 1 It is a perspective structural schematic view of an illustrative embodiment of the fault detection device for the magnetic resonance coil.
[0019] Figure 2 It is a structural schematic view of the wiring port of the magnetic resonance coil.
[0020] Figure 3 It is a circuit diagram for illustrating the fault detection device for the magnetic resonance coil.
[0021] Figure 4 It is a perspective structural schematic view of another illustrative embodiment of the fault detection device for the magnetic resonance coil.
[0022] Figure 5 It is a schematic view for illustrating the power supply module.
[0023] REFERENCE NUMERALS
[0024] 10 plug-in unit
[0025] 11 plug-in terminal
[0026] 111 first conductor
[0027] 12 first wire
[0028] 13 second wire
[0029] 14 prompting element
[0030] 20 housing
[0031] 21 embedding portion
[0032] 211 positioning hole
[0033] 22 plug-in seat
[0034] 23 power supply groove
[0035] 30 power supply module
[0036] 70 wiring port
[0037] 71 wiring terminal
[0038] 711 second electrically conductive body
[0039] 72 recessed portion
[0040] 73 positioning pin
[0041] P power supply end
[0042] G ground end
[0043] S plug-in direction DETAILED DESCRIPTION
[0044] In order to have a clearer understanding of the technical features, objectives and effects of the utility model, the specific implementation manners of the utility model will be described with reference to the drawings, and the same reference numerals in the drawings represent the same or similar components with the same function.
[0045] In this document, "schematic" means "serving as an example, instance or illustration", and any illustration or implementation described as "schematic" in this document should not be interpreted as a more preferred or more advantageous technical solution.
[0046] In this document, "first", "second" do not represent the importance or order, etc., and are only used to represent the difference from each other for the description of the document.
[0047] In order to make the drawings simple, only the parts related to the utility model are schematically represented in the drawings, which do not represent the actual structure of the product.
[0048] Figure 1 A perspective structural schematic view of a schematic implementation manner of the fault detection device of the magnetic resonance coil. Figure 2 A structural schematic view of the wiring port of the magnetic resonance coil. Figure 3Fig. 1 is a circuit diagram for illustrating a fault detection device for a magnetic resonance coil. In the exemplary embodiment, see Figures 1 to 3 , the fault detection device for a magnetic resonance coil comprises eight plug-in units 10 (only one of which is designated in Figure 1 ). Each plug-in unit 10 comprises one plug-in terminal 11, which is, for example, a female terminal. Figure 2 The connection port 70 of the magnetic resonance coil shown comprises eight connection terminals 71 (only one of which is designated in Figure 2 ), which are, for example, male terminals. Each plug-in terminal 11 can be plugged into one connection terminal 71 of the connection port 70 of the magnetic resonance coil. However, this is not limiting, the connection terminals 71 of the connection port 70 of the magnetic resonance coil can also be female terminals, and the plug-in terminals 11 male terminals. In other variants, the connection terminals 71 of the magnetic resonance coil and the plug-in terminals 11 can also be other connection forms. As can be seen from Figure 1 and Figure 2 , the magnetic resonance coil is an eight-channel coil. In other exemplary embodiments, the magnetic resonance coil can also be a coil with another number of channels, and the fault detection device is, for example, configured with a corresponding number of plug-in units 10.
[0049] See Figure 3 , for the sake of a clear picture, Figure 3 , only one of the plug-in units 10 is designated. Each plug-in unit 10 comprises one plug-in terminal 11, one first conductor 12 (see dotted line in Figure 3 ), one second conductor 13 and one indication element 14.
[0050] Each plug-in terminal 11 has a pair of first electrically conductive bodies 111. As can be seen from Figure 2 , each connection terminal 71 has a pair of second electrically conductive bodies 711. In the exemplary embodiment, the plug-in terminal 11 is a female terminal, as can be seen from Figure 1 (Fig. large double-dotted circle part is a local enlargement of the small double-dotted circle part), whose pair of first electrically conductive bodies 111 forms a slot and a hole. The connection terminal 71 on the magnetic resonance coil side is a male terminal, as can be seen from Figure 2 , whose pair of second electrically conductive bodies 711 forms a metal outer cylinder and a pin. The pair of second electrically conductive bodies 711 can be inserted into the pair of first electrically conductive bodies 111, respectively, to achieve an electrical connection of the connection terminal 71 and the plug-in terminal 11.
[0051] As can be seen from Figure 3As shown, one end of the first wire 12 is electrically connected to one of the pair of first conductors 111. One end of the second wire 13 is electrically connected to the other of the pair of first conductors 111, and the other end of the second wire 13 is configured as a ground terminal G. The other end of the first wire 12 is electrically connected to one end of the prompting element 14. The other end of the prompting element 14 is configured as a power supply terminal P. The power supply terminal P and the ground terminal G are configured to form a power supply voltage therebetween. The prompting element 14 is capable of emitting a signal when a current passes therethrough.
[0052] By connecting a coil channel, a wiring terminal 71, a plug terminal 11, and a prompting element 14, a series circuit is formed. A power supply voltage is applied between the two ends of the series circuit, i.e., the power supply terminal P and the ground terminal G. The series circuits are connected in parallel with each other. If there is no short circuit in the coil channel and between the pair of second conductors 711, the resistance of the coil channel is extremely large, and the current in the series circuit is weak enough to fail to trigger the prompting element 14 to emit a signal. If there is a short circuit in the coil channel or between the pair of second conductors 711, the current in the series circuit is sufficient to trigger the prompting element 14 to emit a signal to indicate that a fault has occurred.
[0053] By arranging a plurality of the above series circuits, the fault detection device for the magnetic resonance coil is capable of simultaneously detecting whether each coil channel and wiring terminal has a short circuit fault, and effectively improving the fault detection efficiency. Meanwhile, the plug terminal and the wiring terminal are plugged with each other, which is conducive to achieving good electrical connection and improving the fault detection accuracy.
[0054] In the illustrative embodiment, referring to Figure 1 The fault detection device for the magnetic resonance coil further comprises a housing 20 having an embedding portion 21. The surface of the embedding portion 21 is convex along the plug-in direction S to form a plug seat 22. The plug seat 22 is capable of being plugged into the wiring port 70 of the magnetic resonance coil along the plug-in direction S. The plug terminal 11 of each plug-in unit 10 is fixedly arranged on the top surface of the plug seat 22 along the plug-in direction S. This structure is simple and compact.
[0055] As Figure 2As shown, the wiring port 70 of the magnetic resonance coil has a recessed portion 72, and each wiring terminal 71 is disposed on the surface of the recessed portion 72. The insert portion 21 has several positioning holes 211. The wiring port 70 is provided with two positioning pins 73. During the insertion of the connector 22 into the wiring port 70 of the magnetic resonance coil along the insertion direction S, the two positioning pins 73 are respectively inserted into the two positioning holes 211 to determine the insertion position of the wiring port 70. At this time, each connector 11 is inserted into one wiring terminal 71, the connector 22 is embedded in the recessed portion 72, and the wiring port 70 is embedded in the insert portion 21. This structure is simple, compact, and facilitates quick positioning of the wiring port insertion position. In other illustrative embodiments, the number of positioning pins 73 can also be adjusted to other numbers according to the actual application requirements.
[0056] like Figure 1 As shown, in the illustrative embodiment, the prompting element 14 ( Figure 1 (Only one is shown in the diagram) is an LED light bead. Eight indicator elements 14 are arranged on the surface of the housing 20 on the same side as the connector 22. However, this is not a limitation; the indicator elements 14 can also be other components that can emit a signal when current flows through them. The number of indicator elements 14 can be adjusted according to the number of coil channels. This facilitates convenient and rapid acquisition of fault detection results.
[0057] like Figure 1 As shown, in the illustrative embodiment, eight indicator elements 14 are arranged sequentially along the height of the housing 20. However, this is not the only possibility; the indicator elements 14 may also be arranged sequentially along the length of the housing 20 or along other straight lines. In other illustrative embodiments, the indicator elements 14 may also be arranged in a curved pattern, such as forming a circle. Accordingly, those skilled in the art must number each connector terminal 11 and each indicator element 14 sequentially to avoid confusion. This structure is simple and facilitates numbering the indicator elements.
[0058] In other illustrative embodiments, the arrangement of the prompting element 14 may also be in other forms. Figure 4 This is a three-dimensional structural schematic diagram of another illustrative embodiment of a fault detection device for magnetic resonance coils. See also... Figure 4 , and Figure 1 The similarities between the fault detection device for the magnetic resonance coil shown will not be repeated here, and it is similar to... Figure 1 The difference in the fault detection device for the magnetic resonance coil shown lies in the arrangement of the indicator elements 14. There are 8 indicator elements 14 ( Figure 4 (Only one is marked in the diagram) The arrangement is the same as that of the eight connectors 11. The position of each indicator element 14 in the queue of indicator elements 14 is the same as the position of the connector 11 it is connected to in the queue of connectors 11. This facilitates quick location of the faulty channel / terminal.
[0059] Figure 5 Fig. 1 is a schematic diagram of a magnetic resonance coil fault detection device according to an embodiment of the present application. Fig. 2 is a schematic diagram of a magnetic resonance coil fault detection device according to another embodiment of the present application. Figure 5 In the illustrative embodiment, the housing 20 is provided with a power supply slot 23 on the side facing away from the plug-in base 22. The magnetic resonance coil fault detection device further comprises a power supply module 30. The power supply module 30 is connected to the power supply terminal P and the ground terminal G to form a power supply voltage between the power supply terminal P and the ground terminal G. The power supply module 30 is arranged in the power supply slot 23. Thus, the magnetic resonance coil fault detection device is self-powered and does not need to be connected to a magnetic resonance imaging system for magnetic resonance coil fault detection. Of course, the power supply module 30 can also be an external module connected to the power supply terminal P and the ground terminal G by wires.
[0060] The power supply voltage provided by the power supply module 30 only needs to be sufficient to operate the prompting element 14, for example 10 V. The power supply module 30 is, for example, a disposable battery or a rechargeable battery. The power supply module is simple and easy to obtain.
[0061] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
[0062] The above series of detailed descriptions are only specific descriptions of feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent implementation or modification, such as combination, division or repetition of features, shall be included in the protection scope of the present application.
Claims
1. A fault detection device for magnetic resonance coils, characterized in that, include: A plurality of plug-in units (10), each of the plug-in units (10) comprising: A plug-in terminal (11) is available for plugging into a terminal of the wiring port of the magnetic resonance coil. The plug-in terminal (11) includes a pair of first conductors (111), and each wiring terminal has a pair of second conductors. When the plug-in terminal (11) is plugged into the wiring terminal, the pair of first conductors (111) are electrically connected to the pair of second conductors. A first wire (12), one end of which is electrically connected to one of a pair of first conductors (111), A second conductor (13), one end of which is electrically connected to the other of a pair of first conductors (111), and the other end of which is configured as a ground terminal (G), and A prompting element (14) is provided, the other end of the first wire (12) is electrically connected to one end of the prompting element (14), the other end of the prompting element (14) is configured as a power supply terminal (P), the power supply terminal (P) and the ground terminal (G) are configured to form a power supply voltage between them, and the prompting element (14) is capable of emitting a signal when current passes through it.
2. The fault detection device as described in claim 1, characterized in that, It also includes a housing (20) having an insert (21) on the surface of the insert (21) protruding along the insertion direction (S) to form a plug seat (22), the plug seat (22) being able to be inserted into the wiring port of the magnetic resonance coil along the insertion direction (S), the plug terminals (11) of each plug unit (10) being fixed to the top surface of the plug seat (22) along the insertion direction (S), and when the plug seat (22) is inserted into the wiring port of the magnetic resonance coil, each plug terminal (11) is plugged into one of the wiring terminals.
3. The fault detection device as described in claim 2, characterized in that, The prompting element (14) is an LED light bead, and several of the prompting elements (14) are arranged on the surface of the housing (20) on the same side as the plug-in (22).
4. The fault detection device as described in claim 3, characterized in that, Several of the aforementioned prompting elements (14) are arranged in a straight line.
5. The fault detection device as described in claim 3, characterized in that, The arrangement of the plurality of the prompting elements (14) is the same as that of the plurality of the plug terminals (11), and the position of each of the prompting elements (14) in the queue of the prompting elements (14) is the same as the position of the plug terminal (11) to which it is connected in the queue of the plug terminals (11).
6. The fault detection device as described in claim 1, characterized in that, It also includes a power supply module (30) that connects the power supply terminal (P) and the ground terminal (G) to form the power supply voltage between the power supply terminal (P) and the ground terminal (G).
7. The fault detection device as described in claim 6, characterized in that, The power supply module (30) is a disposable battery or a rechargeable battery.
8. The fault detection device as described in claim 2, characterized in that, The embedding part (21) has several positioning holes (211), and the wiring port is provided with several positioning pins. During the process of inserting the plug (22) into the wiring port of the magnetic resonance coil along the insertion direction (S), the several positioning pins can be inserted into the several positioning holes (211) respectively to determine the insertion position of the wiring port.
9. The fault detection device as described in claim 1, characterized in that, The wiring terminals of the magnetic resonance coil are male, and the plug-in terminal (11) is female.