Pipe falling prevention early warning device for MR environment

Abstract

The invention discloses a pipe falling prevention early warning device for an MR environment, which comprises a bottom plate assembly, an MR shielding shell, a serial port communication module, a battery assembly, a main control chip, a force sensor, a lower part fixing module, an upper part module and a pipeline fixing upper cover, and is characterized in that the MR shielding shell is used for shielding electromagnetic interference of the MR environment, the lower part fixing module is arranged on the force sensor, and the upper part module is arranged on the lower part fixing module; the force sensor detects the stress state of the pipeline. The connection state of the pipeline is monitored in real time through the force sensor and the conductive column, the main control chip sets a plurality of threshold values according to the stress state of the pipeline detected by the force sensor, a plurality of corresponding early warning signals are generated before the pipeline is pulled out, and when the main control chip detects that a circuit of the conductive column is disconnected, the main control chip can send out an alarm signal, so that the pipeline is pulled out. Through dual monitoring of the force sensor and the conductive column, it is guaranteed that medical staff can find the pipeline disengagement situation early.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-tube-off warning device used in an MR environment. Background Art

[0002] Medical tubes have many clinical application scenarios, such as gastric tubes and jejunal tubes for delivering nutrition, PICC tubes for central venous injection of drugs, ventricular drainage tubes, cystostomy tubes, urinary catheters, and catheters inside femoral artery puncture sites. The fixation of these medical tubes is crucial to the life safety of patients.

[0003] Traditional medical tube fixation methods mainly include tape fixation and rope fixation.

[0004] Adhesive tape fixation method: This method relies on using medical adhesive tape to fix the gastric tube to the patient's nose or face. However, in actual applications, it is found that due to the patient's skin oil secretion, sweating, or facial activities such as talking and chewing, the adhesive tape can easily reduce its viscosity, which in turn causes the risk of gastric tube displacement or even accidental dislocation. In addition, some patients may be allergic to the ingredients in the adhesive tape, and after long-term use, adverse reactions such as skin redness, itching, and rash will occur, which seriously affects the patient's comfort.

[0005] Rope fixation: This method uses a rope to fix the gastric tube. Although it can solve some problems of the tape fixation method to a certain extent, the rope fixation method also has obvious defects. For example, the rope compresses sensitive parts such as the ears and scalp for a long time, which may cause local pain and poor blood circulation.

[0006] The Chinese patent with the current publication (announcement) number CN221782786U discloses an anti-tube-drop alarm device, which includes a monitoring alarm component and a fixing component for fixing the catheter. The monitoring alarm component includes a housing, a flexible fixing plate, and a battery, a buzzer, and a normally open travel switch fixedly installed inside the housing. When the patient pulls the catheter, the catheter buckle drives the pull rope to pull the moving contact of the normally open travel switch to move 1 cm, and the normally open travel switch is turned on to form a circuit between the battery and the buzzer. When a circuit is formed between the battery and the buzzer, the buzzer emits an alarm to notify medical staff, so that medical staff can stop the patient from pulling the catheter in time, which can effectively prevent the patient from pulling the catheter out from the femoral artery puncture point by himself.

[0007] However, the above-mentioned anti-tube-dropping alarm device will only alarm after the tube is pulled out, and cannot provide early warning. When the catheter is pulled out, the patient's life safety has been endangered. Moreover, the device is only applicable to the tube inside the femoral artery puncture point and cannot be used for gastric tubes and jejunal tubes.

[0008] Magnetic resonance imaging (MRI) is a widely used medical imaging technology that uses the magnetic resonance phenomenon to obtain electromagnetic signals from the human body and reconstruct human body information and tomographic images. The environment in which it is located is called the magnetic resonance (MR) environment, which has a strong magnetic field. While it has advantages such as more diverse imaging methods and richer information, its strong magnetic field characteristics also bring many inconveniences. Patients with metal foreign bodies or implants (such as pacemakers) cannot undergo MRI examinations because of the risk of metal being magnetized and causing displacement, heat or failure. Traditional medical devices cannot be used in MRI rooms because they contain easily magnetized metal materials and the radio frequency signals emitted during their operation induce imaging artifacts.

[0009] Many medical tubes, such as gastric tubes, jejunal tubes and PICC tubes, generally need to remain in the patient's body for a long time after insertion. Therefore, patients often need to undergo MRI examinations while intubated. Currently available anti-tube alarm devices cannot be used in MRI environments.

[0010] Therefore, the existing anti-tube-off alarm devices have the problems of being unable to provide early warning, being applicable to a limited number of pipeline types, and being unsuitable for MR environments. Summary of the invention

[0011] In order to solve the above problems, the present invention proposes an anti-tube-dropping warning device for use in an MR environment, which can send out a warning signal in time before the tube is pulled out, allowing medical staff to respond in advance. The device is suitable for various types of medical tubes and can be used in an MR environment.

[0012] The present invention is achieved through the following technical solutions:

[0013] The present invention proposes an anti-pipe-off warning device for an MR environment, comprising a bottom plate assembly, an MR shielding shell, a serial communication module, a battery assembly, a main control chip, a force sensor, a lower fixing module, an upper module and a pipeline fixing cover, wherein the main control chip is electrically connected to the serial communication module, the battery assembly and the force sensor, the MR shielding shell comprises an MR shielding bottom shell and an MR shielding upper cover, and the MR shielding shell is used to shield electromagnetic interference in the MR environment, the bottom plate assembly comprises a bottom plate, the MR shielding bottom shell is arranged on the bottom plate, the main control chip, the force sensor, the serial communication module and the battery assembly are all arranged inside the MR shielding bottom shell, the lower fixing module is arranged on the force sensor, and the force sensor detects the stress state of the pipeline, the upper module comprises a limit fixing assembly and a pipeline fixing assembly, the upper module is installed on the lower fixing module through the limit fixing assembly, a pipeline fixing base is arranged on the upper part of the pipeline fixing assembly, and the pipeline fixing base is connected to the pipeline fixing upper cover by a buckle for installing and fixing the pipeline.

[0014] Furthermore, the area of ​​the force sensor is larger than that of the lower fixed module, and the main control chip sets two or more thresholds according to the force state of the pipeline detected by the force sensor. When the value of the force causing the pipeline to detach exceeds a certain threshold, the main control chip generates a corresponding warning signal.

[0015] Furthermore, the present invention also includes a buzzer and an LED, and the buzzer and the LED are electrically connected to the main control chip. When the main control chip generates warning signals of different levels, the main control chip controls the buzzer to generate sounds of different frequencies, and the main control chip controls the LED to emit light of different colors. The higher the level of the warning signal, the higher the frequency of the sound generated by the buzzer.

[0016] Furthermore, the present invention also includes an infrared transmitting module and an infrared receiving module. The infrared transmitting module is installed on a mobile platform of the nuclear magnetic resonance equipment. The main control chip communicates with the infrared transmitting module through the serial port communication module, and the infrared transmitting module communicates with the infrared receiving module through infrared technology.

[0017] Furthermore, the material of the housings of the infrared transmitting module and the infrared receiving module includes non-magnetic metal material.

[0018] Furthermore, a groove is provided in the middle of the MR shielding upper cover, the area of ​​the groove is slightly larger than the lower fixing module, the limiting fixing assembly includes a limiting plate and a fixing claw, a fixing groove is provided at the bottom of the lower fixing module, the limiting plate and the side of the lower fixing module are fitted, the fixing claw and the side of the lower fixing module are fitted, and the fixing claw is embedded in the fixing groove of the lower fixing module, so that the limiting fixing assembly is fixedly connected to the lower fixing module.

[0019] Furthermore, the lower fixing module includes a conductive column, which is electrically connected to the main control chip. The pipeline fixing assembly includes a conductive boss. When the upper module is fixedly installed on the lower fixing module, the conductive boss is electrically connected to the conductive column, and the main control chip detects that the conductive column circuit is turned on.

[0020] Furthermore, the material of the MR shielding shell includes non-magnetic metal material.

[0021] Furthermore, the non-magnetic metal material includes one or more of copper, copper alloy, aluminum, aluminum alloy and stainless steel.

[0022] Furthermore, the base plate assembly includes a base plate, a fixing groove and an elastic rope. The base plate is provided with fixing grooves on both sides. The fixing grooves are provided with 2 or 3 cross beams. The elastic rope is fixed by wrapping around the cross beams of the fixing grooves for multiple times.

[0023] Furthermore, the bottom plate and the elastic rope are made of silicone rubber.

[0024] Furthermore, the pipeline fixing base is provided with a base threaded hole, the pipeline fixing upper cover is provided with an upper cover threaded hole, and the pipeline fixing base and the pipeline fixing upper cover are fixed by threaded connection.

[0025] Furthermore, the limiting and fixing component is made of silicone rubber and is integrally formed using a mold opening process.

[0026] Furthermore, a flexible safety rope is provided between the base plate and the upper module.

[0027] Furthermore, the inner surfaces of the pipeline fixing base and the pipeline fixing upper cover are provided with an anti-slip layer.

[0028] Furthermore, the anti-slip layer is made of one of silicone rubber, polyurethane and polyethylene foam.

[0029] Beneficial effects of the present invention:

[0030] The present invention realizes shielding of electromagnetic signals through an MR shielding shell made of non-magnetic metal material, and the main control chip is connected to the infrared transmitting module through serial communication, which solves the problem that traditional Wifi and Bluetooth cannot be used in MR environment; the present invention monitors the pipeline connection status in real time through force sensors and conductive columns, and the main control chip sets multiple thresholds according to the stress state of the pipeline detected by the force sensor, and generates corresponding multiple early warning signals before the pipeline is pulled out. When the main control chip detects that the conductive column circuit is disconnected, the main control chip will send an alarm signal, and the force sensor and the conductive column dual monitoring ensure that medical staff can find the pipeline detachment at an early stage; the bottom plate and elastic rope of the present invention are made of silicone rubber, and the length of the elastic rope is adjusted by a fixing groove, so that the patient can wear it comfortably, and it is suitable for various types of medical pipelines; in summary, the present invention is suitable for MR environment, realizes early warning and dual monitoring, better guarantees the life safety of patients, and is suitable for a wide range of pipeline types. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a stereoscopic diagram of the anti-tube-dropout alarm device for MR environment of the present invention;

[0032] Figure 2 It is a stereoscopic diagram of the anti-tube-dropout alarm device for MR environment of the present invention from another viewing angle;

[0033] Figure 3It is an exploded view of the anti-tube-dropout alarm device for MR environment of the present invention;

[0034] Figure 4 A perspective view of the bottom plate and the MR shielding bottom shell of the present invention;

[0035] Figure 5 is a perspective view of the base plate and the MR shielding housing of the present invention;

[0036] Figure 6 is a three-dimensional view of the MR shielding bottom shell and internal parts of the present invention;

[0037] Figure 7 is a perspective view of the MR shielding bottom shell and the upper module of the present invention;

[0038] Figure 8 is a perspective view of the MR shielding bottom shell and the upper module of the present invention from another perspective;

[0039] Fig. 9 is a perspective view of the upper module of the present invention;

[0040] Fig.10 is an exploded view of the upper module of the present invention;

[0041] Fig.11 It is a three-dimensional diagram of the pipeline fixing upper cover of the present invention;

[0042] Fig.12 It is a three-dimensional diagram of the use of a safety rope of the anti-tube-off alarm device for MR environment of the present invention;

[0043] Fig.13 It is a hardware structure block diagram of the anti-tube-off alarm device for MR environment of the present invention;

[0044] Fig.14 It is a program flow chart of the anti-tube-dropout alarm device for MR environment of the present invention.

[0045] Fig.15 It is a schematic diagram of the use of the infrared transmitting module and the infrared receiving module of the present invention.

[0046] The reference numerals are as follows:

[0047] Bottom plate assembly 1, bottom plate 101, fixing groove 102, elastic rope 103;

[0048] MR shielding shell 2, MR shielding bottom shell 201, MR shielding upper cover 202;

[0049] Serial communication module 3, serial communication interface 301, serial communication line 302;

[0050] Battery assembly 4, battery charging interface 401;

[0051] Main control chip 5;

[0052] Force sensor 6;

[0053] Lower fixing module 7, conductive column 701, fixing slot 702;

[0054] Upper module 8, limiting and fixing assembly 81, limiting and fixing base plate 8101, fixing jaws 8102, limiting plate 8103, pipeline fixing assembly 82, pipeline fixing base plate 8201, conductive boss 8202, pipeline fixing base 8203, base threaded hole 8204;

[0055] Pipeline fixing cover 9, cover threaded hole 901, buckle 902;

[0056] Safety rope 10;

[0057] Infrared transmitting module 1101, infrared receiving module 1102;

[0058] Pipeline 12;

[0059] MR examination room 13, transparent glass window 1301;

[0060] Nuclear magnetic resonance equipment 14, mobile platform 1401, support table 1402, nuclear magnetic resonance imaging body 1403. DETAILED DESCRIPTION

[0061] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0062] Please refer to Figure 1-Figure 15The present invention proposes an anti-pipe-off warning device for MR environment, including a bottom plate assembly 1, an MR shielding shell 2, a serial communication module 3, a battery assembly 4, a main control chip 5, a force sensor 6, a lower fixing module 7, an upper module 8 and a pipeline fixing upper cover 9, the main control chip 5 is electrically connected with the serial communication module 3, the battery assembly 4 and the force sensor 6, the MR shielding shell 2 includes an MR shielding bottom shell 201 and an MR shielding upper cover 202, and the MR shielding shell 2 is used to shield the electromagnetic interference of the MR environment. The bottom plate assembly 1 includes a bottom plate 101, a fixing groove 102 and an elastic rope 103. The MR shielding bottom shell 201 is arranged on the base plate 101, the main control chip 5, the force sensor 6, the serial communication module 3 and the battery assembly 4 are all arranged inside the MR shielding bottom shell 201, the lower fixing module 7 is arranged on the force sensor 6, the force sensor 6 detects the stress state of the pipeline 12, the upper module 8 includes a limit fixing component 81 and a pipeline fixing component 82, the upper module 8 is installed on the lower fixing module 7 through the limit fixing component 81, and a pipeline fixing base 8203 is arranged on the upper part of the pipeline fixing component 82, and the pipeline fixing base 8203 is connected to the pipeline fixing upper cover 9 through a snap buckle for installing and fixing the pipeline 12.

[0063] The anti-tube-off warning device for MR environment of the present invention needs to prevent the electromagnetic waves of the MR environment from affecting the use function of the device, and also needs to reduce the influence of the electromagnetic waves generated when the device is used on the MRI imaging quality. The basic principle of shielding electromagnetic waves in the MR environment of the present invention is to use the MR shielding bottom shell 201, the MR shielding upper cover 202 and the closed space formed by the pipeline fixing substrate 8201 is equivalent to a Faraday cage, which can isolate the internal and external electromagnetic fields. The material of the MR shielding bottom shell 201, the MR shielding upper cover 202 and the pipeline fixing substrate 8201 includes non-magnetic metal materials, and the non-magnetic metal materials include one or more of copper, copper alloy, aluminum, aluminum alloy and stainless steel.

[0064] In this embodiment, if Figure 3 and Fig.14As shown, the area of ​​the force sensor 6 is larger than the area of ​​the lower fixing module 7, which is convenient for the installation and fixation of the lower fixing module 7 and ensures that the detection value of the force sensor 6 is more accurate. A computer program is running inside the main control chip 5. According to the force state of the pipeline 12 detected by the force sensor 6, three thresholds are set. Assuming that the threshold of the force of the pipeline 12 is completely detached is Fmax, when the force detected by the force sensor 6 is less than 1 / 4Fmax, the main control chip 5 sends a normal pipeline connection information, the green LED light is on, and the buzzer does not sound; when the force detected by the force sensor 6 exceeds 1 / 4Fmax, a level 1 warning signal is generated, the white LED light is on, and the buzzer does not sound; when the force detected exceeds 1 / 2Fmax, a level 2 warning signal is generated, the blue LED light is on, and the buzzer emits a low-frequency sound; when the force detected exceeds 3 / 4Fmax, a level 3 warning signal is generated, the yellow LED light is on, and the buzzer emits a medium-frequency sound. When the main control chip 5 detects that the conductive column 701 is disconnected, the main control chip 5 will issue the highest level 4 warning signal, the red LED light will turn on, the buzzer will emit a high-frequency sound, and the force sensor 6 and the conductive column 701 will perform dual monitoring to ensure that medical staff can detect the detachment of the pipeline earlier.

[0065] In this embodiment, if Fig.13 and Fig.15 As shown, the present invention also includes an infrared transmitting module 1101 and an infrared receiving module 1102. The infrared transmitting module 1101 is installed on the mobile platform 1401 of the nuclear magnetic resonance device 14. The main control chip 5 communicates with the infrared transmitting module 1101 through the serial communication module 3, and the infrared transmitting module 1101 communicates with the infrared receiving module 1102 through infrared technology. The infrared receiving module 1102 can be installed outside the MR examination room 13. A transparent glass window 1301 is provided on the MR examination room 13. The infrared rays emitted by the infrared transmitting module 1101 reach the infrared receiving module 1102 through the transparent glass window 1301. The material of the shell of the infrared transmitting module 1101 and the infrared receiving module 1102 includes non-magnetic metal materials, and the non-magnetic metal materials include one or more of copper, copper alloy, aluminum, aluminum alloy and stainless steel. Since the MR environment will interfere with traditional Bluetooth and Wifi communications, infrared communication technology is adopted, and its principle is consistent with the infrared remote control of a TV.

[0066] The infrared receiving module 1102 communicates with an external system, where the external system refers to a Nursing Information System (NIS) or a Hospital Information System (HIS) commonly used by a nurse station.

[0067] In this embodiment, a groove is provided in the middle of the MR shielding upper cover 202, and the area of ​​the groove is slightly larger than the lower fixing module 7. The limiting fixing assembly 81 includes a limiting fixing substrate 8101, a limiting plate 8103 and a fixing jaw 8102. The lower fixing module 7 includes a conductive column 701 and a fixing groove 702. The limiting plate 8103 is fitted with the side of the lower fixing module 7, and the fixing jaw 8102 is fitted with the side of the lower fixing module 7. The fixing jaw 8102 can be embedded in the fixing groove 702, thereby realizing a fixed connection between the limiting fixing assembly 81 and the lower fixing module 7.

[0068] In this embodiment, the lower fixed module 7 includes a conductive column 701, which is connected to the main control chip 5 through a wire. The pipeline fixing component 82 includes a conductive boss 8202. When the upper module 8 is fixedly installed on the lower fixed module 7, the conductive boss 8202 is in direct contact with the conductive column 701. The conductive boss 8202 and the conductive column 701 are both made of conductive metal materials, so the two are electrically connected, and the main control chip 5 will detect that the circuit of the conductive column 701 is turned on.

[0069] In this embodiment, the battery assembly 4 is arranged on the MR shielding bottom shell 201. The battery assembly 4 uses multiple rechargeable lithium batteries. The battery model is LIR1054, with a diameter of 10 mm and a length of 5.4 mm. This type of battery is mostly used in small electronic devices such as Bluetooth headsets. The battery assembly 4 is provided with a battery charging interface 401, which uses a Type-C interface. When the battery power is low, it is charged through the battery charging interface 401.

[0070] In this embodiment, fixing grooves 102 are provided on both sides of the bottom plate 101, and two fixing grooves 102 are provided on each side, and two or three cross beams are provided on each fixing groove 102. The elastic rope 103 is fixed by wrapping around the cross beams on the fixing groove 102 for many times. This fixing method is often used to adjust the swimming head strap. The bottom plate 101 and the elastic rope 103 are made of silicone rubber. When used by medical staff, the length of the elastic rope 103 can be adjusted according to the patient's body shape to make the patient more comfortable to wear.

[0071] The present invention is used to fix clinical medical tubes, and has many application scenarios, such as gastric tubes and jejunal tubes for delivering nutrition, PICC tubes for central venous injection of drugs, ventricular drainage tubes, cystostomy tubes, urinary catheters, and catheters inside femoral artery puncture points, etc. In different application scenarios, the required length of the elastic rope 103 will be different. For example, when fixing a gastric tube and a jejunal tube, the tube enters through the nasal cavity, and the device will be installed on the head, and the required elastic rope 103 will be shorter; when fixing a cystostomy tube and a urinary catheter, the device will be installed on the abdomen, and the required elastic rope 103 will be longer.

[0072] In this embodiment, a pipeline fixing base 8203 is arranged above the pipeline fixing assembly 82, a base threaded hole 8204 is arranged on the pipeline fixing base 8203, and a top cover threaded hole 901 is arranged on the pipeline fixing top cover 9. The pipeline fixing base 8203 and the pipeline fixing top cover 9 can be fixedly connected by snap fasteners first. If the medical staff believes that further fixation is needed, the pipeline fixing base 8203 and the pipeline fixing top cover 9 can be connected and fixed by threads.

[0073] In this embodiment, the position limiting fixing assembly 81 is made of silicone rubber and is integrally formed by a mold opening process. The inner surfaces of the pipeline fixing base 8203 and the pipeline fixing upper cover 9 are provided with an anti-slip layer, which can prevent the axial movement of the pipeline 12 after being fixed. The anti-slip layer is made of one of silicone rubber, polyurethane, and polyethylene foam.

[0074] In this embodiment, a flexible safety rope 10 is provided between the bottom plate 101 and the upper module 8. The safety rope 10 is a thin rope with a length of 5-20 cm, and the material can be polypropylene or nylon. When the pipeline 12 has been separated from the anti-disconnection pipe warning device for MR environment of the present invention, it can continue to be connected through the safety rope 10, and the pipeline 12 can only move within a small range, so that the normal operation of the pipeline 12 can be maintained.

[0075] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A tube-off prevention warning device for MR environment, characterized in that: It includes a base plate assembly, an MR shielding shell, a serial communication module, a battery assembly, a main control chip, a force sensor, a lower fixing module, an upper module and a pipeline fixing cover, wherein the main control chip is electrically connected to the serial communication module, the battery assembly and the force sensor, the MR shielding shell includes an MR shielding bottom shell and an MR shielding upper cover, and the MR shielding shell is used to shield the electromagnetic interference of the MR environment, the base plate assembly includes a base plate, the MR shielding bottom shell is arranged on the base plate, the main control chip, the force sensor, the serial communication module and the battery assembly are all arranged inside the MR shielding bottom shell, the lower fixing module is arranged on the force sensor, and the force sensor detects the stress state of the pipeline, the upper module includes a limit fixing assembly and a pipeline fixing assembly, the upper module is installed on the lower fixing module through the limit fixing assembly, a pipeline fixing base is arranged on the upper part of the pipeline fixing assembly, and the pipeline fixing base is connected to the pipeline fixing upper cover by a snap buckle for installing and fixing the pipeline.

2. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The area of ​​the force sensor is larger than that of the lower fixed module. The main control chip sets two or more thresholds according to the force state of the pipeline detected by the force sensor. When the value of the force causing the pipeline to detach exceeds a certain threshold, the main control chip will generate a corresponding warning signal.

3. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: It also includes a buzzer and an LED, which are electrically connected to the main control chip. When the main control chip generates warning signals of different levels, the main control chip controls the buzzer to generate sounds of different frequencies, and the main control chip controls the LED to emit light of different colors. The higher the level of the warning signal, the higher the frequency of the sound generated by the buzzer.

4. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: It also includes an infrared transmitting module and an infrared receiving module. The infrared transmitting module is installed on a mobile platform of the nuclear magnetic resonance equipment. The main control chip communicates with the infrared transmitting module through the serial communication module. The infrared transmitting module communicates with the infrared receiving module through infrared technology. The material of the outer shell of the infrared transmitting module and the infrared receiving module includes non-magnetic metal material.

5. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: A groove is provided in the middle of the MR shielding upper cover, and the area of ​​the groove is slightly larger than the lower fixing module. The limiting fixing assembly includes a limiting plate and a fixing claw. A fixing groove is provided at the bottom of the lower fixing module. The limiting plate and the side of the lower fixing module are fitted together, and the fixing claw and the side of the lower fixing module are fitted together. The fixing claw is embedded in the fixing groove of the lower fixing module, so that the limiting fixing assembly is fixedly connected to the lower fixing module.

6. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The lower fixing module includes a conductive column, which is electrically connected to the main control chip. The pipeline fixing assembly includes a conductive boss. When the upper module is fixedly installed on the lower fixing module, the conductive boss is electrically connected to the conductive column, and the main control chip detects that the conductive column circuit is turned on.

7. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The material of the MR shielding shell includes non-magnetic metal material, and the non-magnetic metal material includes one or more of copper, copper alloy, aluminum, aluminum alloy and stainless steel.

8. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The base plate assembly includes a base plate, a fixing groove and an elastic rope. The base plate is provided with fixing grooves on both sides. The fixing grooves are provided with 2 or 3 cross beams. The elastic rope is fixed by wrapping around the cross beams of the fixing grooves for multiple times. The base plate and the elastic rope are made of silicone rubber.

9. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The pipeline fixing base is provided with a base threaded hole, the pipeline fixing upper cover is provided with an upper cover threaded hole, and the pipeline fixing base and the pipeline fixing upper cover are fixed by threaded connection.

10. The anti-tube-off warning device for MR environment according to claim 1, characterized in that: The inner surfaces of the pipeline fixing base and the pipeline fixing upper cover are provided with anti-skid layers, and the anti-skid layers are made of one of silicone rubber, polyurethane and polyethylene foam.

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