A monitor host for magnetic resonance

By employing non-magnetic metal materials and a μ-metal layer design, the problem of magnetic field interference in the monitor under magnetic resonance environment was solved, enabling accurate physiological parameter monitoring and simplified operation procedures under magnetic resonance environment.

CN224484159UActive Publication Date: 2026-07-14JINGRUI MEDICAL TECHNOLOGY (SHENZHEN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGRUI MEDICAL TECHNOLOGY (SHENZHEN) CO LTD
Filing Date
2025-03-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing magnetic resonance monitors cannot function properly in strong magnetic field environments, cannot effectively monitor patients' physiological parameters, and require the cooperation of multiple medical staff to perform the tests.

Method used

Design a monitor host for magnetic resonance imaging (MRI). The base, support rod, main unit box, and display module are made of non-magnetic metal material. The host is equipped with a parameter management module and a control management module. The main unit box is coated with a μ metal layer to shield the magnetic field.

Benefits of technology

Accurate monitoring of patients' physiological parameters in a magnetic resonance environment reduces the influence of magnetic fields, simplifies the testing process, requires only one medical staff member to operate, and improves the shielding effect and stability of the monitor.

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Abstract

The utility model belongs to the technical field of monitor, specifically a kind of monitor host for magnetic resonance, including base, support rod, host box and display module, the lower end of support rod is connected to base, host box is connected to the upper end of support rod, host box is used to detect the physiological parameter of user, display module is connected to host box, display module is used to show the parameter measured by host box, the shell of base, host box, display module and support rod are made of non-magnetic metal.The application has as far as possible weaken the influence of magnetic field on instrument under magnetic resonance environment, so that monitor host can still monitor the physiological parameters of patient under magnetic resonance environment, avoid the effect that monitor host is influenced by electromagnetism.
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Description

Technical Field

[0001] This utility model relates to the technical field of patient monitors, specifically a main unit for a magnetic resonance imaging (MRI) monitor. Background Technology

[0002] Magnetic resonance imaging (MRI) scans help doctors diagnose and assess various diseases and health conditions in patients. A typical MRI scan takes 10-20 minutes, but some can take up to half an hour or even an hour. During the scan, doctors monitor the patient's electrocardiogram (ECG), blood oxygen saturation, blood pressure, body temperature, respiration, pulse rate, and other physiological parameters in real time to ensure patient safety.

[0003] However, due to the strong magnetic field environment in the MRI room, ordinary monitors cannot function properly under such strong interference. Currently available MRI monitors either use a standard monitor with a shielded frame; or place the monitor outside the MRI room and only connect accessories to the MRI room; or can only monitor some parameters inside the MRI room, failing to conveniently meet the needs of monitoring patients' physiological parameters inside the MRI room.

[0004] Therefore, existing technologies need to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application proposes a monitoring unit for magnetic resonance imaging (MRI).

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A monitor for magnetic resonance imaging includes a base, a support rod, a main unit housing, and a display module. The lower end of the support rod is connected to the base, and the main unit housing is connected to the upper end of the support rod. The main unit housing is used to detect the user's physiological parameters, and the display module is connected to the main unit housing. The display module is used to display the parameters measured by the main unit housing. The housings of the base, the main unit housing, the display module, and the support rod are made of non-magnetic metal.

[0008] Preferably, the base is equipped with a battery module; the main unit is equipped with a parameter management module, which is used to detect the user's physiological parameters; the display module is equipped with a control management module, which is electrically connected to the parameter management module, and the control management module is used to process and integrate the data detected by the parameter management module and display it on the display module.

[0009] Preferably, the outer shell of the host chassis includes a host bottom shell, a host top cover, and a host panel. The host bottom shell is provided with a placement slot for placing the parameter management module. One side of the placement slot is open. The host top cover is positioned at the opening of the placement slot to cover the opening of the placement slot. The host panel covers the opening of the placement slot and is provided with multiple external interfaces.

[0010] Preferably, the inner wall of the cavity formed by the bottom shell of the main unit, the top cover of the main unit, and the main panel of the main unit is coated with a μ metal layer.

[0011] Preferably, a first slot is provided on the upper side of the base, and a second slot is provided on the lower side of the main unit's bottom shell. The first slot and the second slot are respectively used for the two ends of the support rod to be tightly inserted, and the connection between the parameter management module and the battery module is realized through the support rod.

[0012] Preferably, the parameter management module includes multiple parameter boards, which are used to detect the user's physiological parameters.

[0013] Preferably, the parameter management module further includes a parameter management board, which is electrically connected to the plurality of parameter boards and the control management module respectively, so as to collect parameter data of the plurality of parameter boards.

[0014] Preferably, the housing of the display module includes a display frame, a display screen, and a shielded touch screen. The front of the display frame is provided with a mounting slot for mounting the display screen, and the shielded touch screen covers the opening of the mounting slot to form a closed shielded space inside the mounting slot. The back of the display frame is provided with a housing for placing the control and management module.

[0015] Preferably, an alarm light is also provided on the back of the display frame, and the alarm light is electrically connected to the control management module.

[0016] Preferably, the base is provided with a plurality of legs on its periphery, and each of the plurality of legs is provided with a caster wheel on its lower side.

[0017] In summary, this application has the following beneficial technical effects: By decomposing the overall structure of the monitor into four parts—base, support rod, main unit, and display module—and by using non-magnetic metal for the outer casing of each of these four parts, the influence of the magnetic field on the instrument in the magnetic resonance environment can be reduced as much as possible. This allows the monitor main unit to still monitor the patient's various physiological parameters in the magnetic resonance environment, avoiding electromagnetic interference to the monitor main unit. Moreover, only one medical staff member is needed for the entire magnetic resonance detection process, eliminating the need for multiple medical staff to perform the detection, thus simplifying the magnetic resonance detection process. At the same time, a μ metal layer is coated inside the main unit. Since the main unit contains a large number of modules and speakers, and the modules have motors and the speakers have magnets, a μ metal layer is needed to magnetically shield the inside of the main unit to counteract part of the magnetic field in the magnetic resonance environment, thereby further improving the shielding effect of the monitor main unit. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the monitor host in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the base in an embodiment of this application;

[0021] Figure 3 This is an exploded view of the main unit chassis in an embodiment of this application;

[0022] Figure 4 This is an exploded view of the display module in the embodiments of this application;

[0023] Figure 5 This is an exploded view showing another perspective of the display module in an embodiment of this application.

[0024] Explanation of reference numerals in the attached diagram: 1. Base; 11. First slot; 12. Support leg; 13. Caster wheel; 2. Support rod; 3. Main unit chassis; 31. Main unit bottom shell; 311. Placement slot; 312. Second slot; 32. Main unit top cover; 321. Mounting hole; 33. Main unit front panel; 34. Parameter board; 35. Parameter management board; 4. Display module; 41. Display frame; 411. Mounting slot; 412. Housing; 413. Mounting protrusion; 42. Display screen; 43. Shielded touch screen; 5. Alarm light. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] This application discloses a monitor host for magnetic resonance imaging.

[0027] Reference Figures 1 to 5 The monitor host includes a base 1, a support rod 2, a main unit box 3, and a display module 4. Specifically, the base 1 serves as the mounting base for the entire monitor host. The support rod 2 is elongated, with its lower end positioned on the upper side of the base 1. To facilitate wiring between various devices, the support rod 2 is designed as a thin-walled tubular shape. In this embodiment, the support rod 2 is made of non-magnetic metal. The main unit box 3 is located at the upper end of the support rod 2 and is used to detect the patient's physiological parameters. The display module 4 is located on the side of the main unit box 3 away from the support rod 2 and is electrically connected to the main unit box 3. The display module 4 is used to display the physiological parameter data detected by the main unit box 3. In this embodiment, the outer shells of the base 1, the main unit box 3, and the display module 4 are all made of non-magnetic metal. By using non-magnetic metal, the base 1, the main unit box 3, and the display module 4 each form a shielded entity, which can prevent errors in the monitor's detection parameters under magnetic resonance conditions and reduce the influence of the magnetic field in the magnetic resonance environment on the monitor equipment.

[0028] A battery module is installed inside the base 1, serving as the power supply for the monitor. The battery module is mounted inside the base 1 using non-magnetic screws. A parameter management module is installed inside the main unit 3. In this embodiment, the parameter management module includes multiple parameter boards 34, which are used to detect different physiological parameters of the patient. These parameters include NIBP boards, CO2 boards, body temperature boards, etc. The multiple parameter boards 34 are mounted inside the main unit 3 using non-magnetic screws according to their shape and size. In this embodiment, to reduce the wiring between the parameter boards 34 and the display module 4, a parameter management board 35 is also installed inside the main unit 3. This board is electrically connected to the multiple parameter boards 34 and the display module 4. The parameter management board 35 collects parameter data from each parameter board 34 and forwards it to the display module 4. This forwarding by the parameter management board 35 significantly reduces the number of wiring connections.

[0029] A control management module is provided on the display module 4. The control management module is electrically connected to the parameter management board 35 to integrate the data measured by the parameter management module and display it.

[0030] The outer casing of the main unit 3 includes a main unit bottom shell 31, a main unit top cover 32, and a main unit front panel 33. A placement groove 311 is provided on the upper side of the main unit bottom shell 31, with one side of the placement groove 311 being open. In this embodiment, the main unit bottom shell 31 consists of a bottom plate and a U-shaped plate. The bottom plate serves as the bottom of the placement groove 311, the opening of the U-shaped plate serves as the opening of the placement groove 311, and one side of the U-shaped plate serves as the opening of the placement groove 311. The main unit top cover 32 is positioned at the opening of the placement groove 311, and the main unit front panel 33 is positioned at the opening of the placement groove 311. At the opening, the main unit top cover 32 and the main unit panel 33 are both fixedly installed on the main unit bottom shell 31 with non-magnetic screws to form an internal storage space for the main unit 3. The main unit panel 33 has interfaces for the magnetic resonance monitor to the outside, such as the power button, fiber optic temperature probe interface, NIBP trachea, CO2 trachea, etc. The main unit bottom shell 31, main unit top cover 32 and main unit panel 33 are all made of non-magnetic materials. With this design, the main unit bottom shell 31, main unit top cover 32 and main unit panel 33 can be assembled in pairs, and the remaining one can be easily disassembled as a whole.

[0031] To minimize the impact of the high magnetic field environment in the magnetic resonance environment on the modules inside the main unit chassis 3, a layer of μ metal is coated inside the main unit chassis 3. Specifically, a μ metal layer is coated on the inner wall of the cavity formed by the main unit bottom shell 31, the main unit top cover 32, and the main unit front panel 33. Due to the extremely high permeability of μ metal, when an external magnetic field acts on the μ metal, the magnetic field lines will preferentially pass through the μ metal rather than penetrate into the shielding. This high permeability allows the μ metal to form a low magnetic reluctance channel, thereby confining the magnetic field within the shielding layer and preventing the magnetic field from spreading into the interior of the main unit chassis 3. At the same time, eddy currents are generated on the surface of the μ metal. These eddy currents generate a reverse magnetic field, which cancels out the effect of the external magnetic field, and the high conductivity of μ metal allows it to absorb some electromagnetic energy, further weakening the magnetic field strength.

[0032] To facilitate the assembly and disassembly of the monitor, a first slot 11 is provided on the upper side of the base 1. The shape of the first slot 11 is adapted to the shape of the support rod 2 for the lower end of the support rod 2 to be inserted. A second slot 312 is provided on the lower side of the main unit 3. The second slot 312 is positioned opposite to the slot of the first slot 11. The first slot 11 and the second slot 312 are respectively used for the two ends of the support rod 2 to be tightly inserted to ensure that external magnetic fields do not enter the main unit from the gaps between the support rod 2 and the first slot 11 and the second slot 312. In this embodiment, the support rod 2 can be inserted into the first slot 11 and the second slot 312 using conductive adhesive or non-magnetic screws. The support rod 2 can be an integrated structure, or it can be spliced ​​together by two sections of non-magnetic metal tubes. It can also be split into two non-magnetic metal tubes with the same function to connect the main unit bottom shell 31 and the base 1 as needed. In order to facilitate the wiring, a through hole communicating with the inside of the base 1 is provided on the bottom or side wall of the first slot 11, and a through hole communicating with the slot 311 is provided on the bottom or side wall of the second slot 312.

[0033] The outer casing of the display module 4 includes a display frame 41, a display screen 42, and a shielded touchscreen 43. The display frame 41 is made of non-magnetic material. A mounting groove 411 is provided on one side of the display frame 41 for placing the display screen 42. The display screen 42 and the shielded touchscreen 43 are sequentially fixed to the opening of the mounting groove 411 of the display frame 41 using non-magnetic screws or conductive adhesive, forming a closed shielded space on the front of the display frame 41. A housing 412 for housing the control management module is provided on the back of the display frame 41, and this housing 412 communicates with the mounting groove 411 to allow the control management module to connect to the display screen 42. To facilitate the installation and removal of the display frame 41, a mounting hole 321 is provided on the main unit cover 32, with the mounting hole 321 extending from one side. The cross-section is rectangular, and a mounting protrusion 413 is provided on the lower side of the display frame 41. The shape of the mounting protrusion 413 is adapted to the mounting hole 321 for insertion into the mounting hole 321. When the mounting protrusion 413 is inserted into the mounting hole 321, the outer side wall of the mounting protrusion 413 will fit tightly against the inner side wall of the mounting hole 321 to prevent external magnetic fields from entering the main unit 3 through the gap between the mounting protrusion 413 and the mounting hole 321. In order to improve the installation stability of the display frame 41, the mounting protrusion 413 is connected to the main unit 3 with screws to ensure the stability of the display module 4. At the same time, multiple external wireless communication interfaces are also provided on the outside of the display frame 41 for connecting remote display devices and other wireless parameter modules, such as ECG, SpO2, etc.

[0034] To enhance the functionality of the monitor, the following features are included: First, an alarm light 5 is installed on the back of the display frame 41. The alarm light 5 can be in the form of a buzzer. When the patient's physiological parameters fluctuate significantly or cannot be displayed, the alarm light 5 will sound an alarm to alert medical staff and facilitate appropriate actions. The alarm light 5 is electrically connected to the control and management module of the display module 4, providing power to the alarm light 5 and displaying the information on the display screen 42, further enhancing functionality. Second, multiple support legs 12 are provided around the base 1, evenly distributed on the base 1. In this embodiment... In this example, four support legs 12 are provided, which are respectively located at the four corners of the base 1 to expand the support area of ​​the base 1 and make the entire monitor host more stable. Universal wheels 13 are provided on the lower side of the four support legs 12. The universal wheels 13 are also made of non-magnetic materials to avoid being attracted in a strong magnetic environment. With the action of multiple universal wheels 13, the monitor can be moved as a whole with relatively little effort, which is convenient for medical staff to operate. In this embodiment, the universal wheels 13 are self-locking universal wheels 13, which can be locked when movement is not required to prevent the universal wheels 13 from moving the monitor host.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A monitor main unit for magnetic resonance imaging, characterized in that: The device includes a base, a support rod, a main unit housing, and a display module. The lower end of the support rod is connected to the base, and the main unit housing is connected to the upper end of the support rod. The main unit housing is used to detect the user's physiological parameters, and the display module is connected to the main unit housing. The display module is used to display the parameters measured by the main unit housing. The outer shells of the base, the main unit housing, the display module, and the support rod are made of non-magnetic metal.

2. The main unit of a monitoring device for magnetic resonance imaging according to claim 1, characterized in that: The base contains a battery module; the main unit contains a parameter management module for detecting the user's physiological parameters; the display module contains a control management module electrically connected to the parameter management module, which processes and integrates the data detected by the parameter management module and displays it on the display module.

3. A monitoring unit for magnetic resonance imaging according to claim 2, characterized in that: The outer shell of the main unit includes a bottom shell, a top cover, and a front panel. The bottom shell has a placement slot for placing the parameter management module. One side of the placement slot is open. The top cover covers the opening of the placement slot. The front panel covers the opening of the placement slot and has multiple external interfaces.

4. A monitoring unit for magnetic resonance imaging according to claim 3, characterized in that: The inner wall of the cavity formed by the bottom shell of the main unit, the top cover of the main unit, and the main panel of the main unit is coated with a μ metal layer.

5. A monitoring unit for magnetic resonance imaging according to claim 3, characterized in that: The base has a first slot on its upper side and the main unit has a second slot on its lower side. The first slot and the second slot are respectively used for the two ends of the support rod to be tightly inserted, and the connection between the parameter management module and the battery module is achieved through the support rod.

6. A monitor host for magnetic resonance imaging according to claim 2, characterized in that: The parameter management module includes multiple parameter boards, which are used to detect the user's physiological parameters.

7. A monitoring unit for magnetic resonance imaging according to claim 6, characterized in that: The parameter management module also includes a parameter management board, which is electrically connected to multiple parameter boards and the control management module to collect parameter data from the multiple parameter boards.

8. A monitoring unit for magnetic resonance imaging according to claim 3, characterized in that: The outer casing of the display module includes a display frame, a display screen, and a shielded touch screen. The front of the display frame has a mounting slot for mounting the display screen, and the shielded touch screen covers the opening of the mounting slot to form a closed shielded space inside the mounting slot. The back of the display frame has a housing for placing the control and management module. The main unit cover has mounting holes, and the display frame has mounting protrusions that are tightly fitted into the mounting holes.

9. A monitor host for magnetic resonance imaging according to claim 8, characterized in that: An alarm light is also provided on the back of the display frame, and the alarm light is electrically connected to the control management module.

10. A monitoring unit for magnetic resonance imaging according to claim 1, characterized in that: The base is provided with multiple legs on its periphery, and each of the multiple legs is provided with a caster wheel on its lower side.