阅读说明：本技术 一种核磁共振设备降低噪声的装置及方法 (Device and method for reducing noise of nuclear magnetic resonance equipment ) 是由 张婷玉 黄晓莹 胡亚平 于 2021-10-27 设计创作，主要内容包括：本发明涉及核磁共振技术领域,具体涉及一种核磁共振设备降低噪声的装置及方法,包括侧仓体,所述侧仓体的顶端铰接有舱门,所述舱门的内部开设有空腔,所述舱门内部开设的空腔内插设有U形活塞,所述U形活塞的表面通过螺纹插设有传动杆,所述传动杆的一端穿过舱门延伸至舱门的外部,所述舱门的一侧对称开设有排气孔,所述侧仓体的表面安装有锁定机构,所述侧仓体的表面安装有清灰机构,本发明为核磁共振设备提供了一种能够起到辅助降噪的装置,该装置在使用时环抱核磁共振设备,主要通过真空的方式使得核磁共振设备在工作状态下产生的噪音失去了传播介质,从而使噪音无法传播,最终达到降噪的目的。(The invention relates to the technical field of nuclear magnetic resonance, in particular to a device and a method for reducing noise of nuclear magnetic resonance equipment, which comprises a side bin body, wherein the top end of the side bin body is hinged with a bin door, a cavity is formed in the bin door, a U-shaped piston is inserted in the cavity formed in the bin door, a transmission rod is inserted in the surface of the U-shaped piston through threads, one end of the transmission rod penetrates through the bin door and extends to the outside of the bin door, exhaust holes are symmetrically formed in one side of the bin door, a locking mechanism is arranged on the surface of the side bin body, and an ash removal mechanism is arranged on the surface of the side bin body. Therefore, the noise can not be transmitted, and the purpose of noise reduction is finally achieved.)

1. The utility model provides a device of nuclear magnetic resonance equipment noise reduction, includes side storehouse body (1), its characterized in that: the utility model discloses a lateral cabin, including the cabin door (5), chamber door (5) have been articulated on the top of the lateral cabin body (1), the cavity has been seted up to the inside of chamber door (5), the cavity interpolation that sets up of cabin door (5) inside is equipped with U-shaped piston (6), the surface of U-shaped piston (6) is inserted through the screw and is equipped with transfer line (7), the one end of transfer line (7) is passed cabin door (5) and is extended to the outside of cabin door (5), exhaust hole (10) have been seted up to one side symmetry of cabin door (5), the surface mounting of the lateral cabin body (1) has locking mechanical system, the surface mounting of the lateral cabin body (1) has deashing mechanism.

2. The noise reduction device of nuclear magnetic resonance equipment according to claim 1, characterized in that the bottom end of the side bin body (1) is glued with a sound absorption sponge (2), the surface of the sound absorption sponge (2) is glued with a base support sleeve (3), and the surface of the base support sleeve (3) is inserted with screws (4) through threads at equal intervals.

3. A device for reducing noise of an nmr apparatus according to claim 1, wherein the end of the transmission rod (7) outside the door (5) is fixedly connected to an arc-shaped connection plate (8), and the surface of the arc-shaped connection plate (8) is symmetrically connected to the handle (9) through a bearing.

4. The noise reduction device for nuclear magnetic resonance equipment according to claim 1, wherein the push rods (11) are symmetrically hinged to the surface of the cabin door (5), the hinge shaft of the push rods (11) and the cabin door (5) is sleeved with a torsion spring, and two ends of the torsion spring are respectively connected with the cabin door (5) and the push rods (11).

5. The device for reducing the noise of the nuclear magnetic resonance equipment according to claim 1, wherein the locking mechanism comprises a lock tongue (12), the lock tongue (12) is fixedly connected to the bottom surface of the cabin door (5), a bolt (13) is generated inside the side cabin body (1), a movable groove is formed in the surface of the side cabin body (1), a push handle (14) is fixedly connected to the surface of the bolt (13), one end of the push handle (14) penetrates through the movable groove and extends to the outside of the side cabin body (1), a first return spring (15) is sleeved on the surface of the bolt (13), two ends of the first return spring (15) are respectively connected with the surface of the bolt (13) and the inner wall of the side cabin body (1), and one end of the bolt (13) penetrates through the lock tongue (12) and is abutted against the inner wall of the side cabin body (1).

6. The noise reducing device of nuclear magnetic resonance equipment according to claim 5, wherein one end of the bolt (13) close to the lock tongue (12) is arc-shaped, and the opening of the through hole on the surface of the lock tongue (12) for the bolt (13) to pass through is arc-shaped.

7. The device for reducing the noise of the nuclear magnetic resonance equipment according to claim 1, wherein the ash removing mechanism comprises a fixing plate (16), the surface of the side bin body (1) is fixedly connected with the fixing plate (16), the surface of the fixing plate (16) is fixedly connected with a fixing block (17), the inside of the fixing block (17) is connected with a shaft member (18) through a bearing, the surface of the shaft member (18) is sleeved with a second return spring (19), two ends of the second return spring (19) are respectively connected with the shaft member (18) and the inner wall of the fixing block (17), the surface of the shaft member (18) is fixedly connected with a transmission rope (20), the surface of the fixing plate (16) is symmetrically and fixedly connected with frame rods (21), the inside of the frame rods (21) is connected through the bearing and inserted with rotating members (22), the surface of the rotating members (22) is fixedly connected with fan blades (23) at equal intervals, the one end that fixed block (17) were kept away from in transmission rope (20) passes the outside that twiddle piece (22) extended to twiddle piece (22), fixed block (17) and twiddle piece (22) fixed connection, transmission rope (20) are connected through the surface of direction abrasionproof damage mechanism with hatch door (5).

8. The noise reduction device of the nmr equipment according to claim 7, wherein the guide wear prevention mechanism comprises a guide sleeve (24), the surface of the side bin body (1) is fixedly connected with the guide sleeve (24), the surface of the guide sleeve (24) is connected with a roller (25) through a rotating shaft, one end of the transmission rope (20) far away from the fixed block (17) passes through the guide sleeve (24) and extends to the surface of the cabin door (5) through the outer fixed connection of the guide sleeve (24), and the surface of the transmission rope (20) is abutted against the surface of the roller (25).

9. The apparatus for reducing noise of nuclear magnetic resonance equipment according to claim 1, being deployed with an auxiliary method for reducing noise of nuclear magnetic resonance equipment, is characterized by comprising the following steps:

step 1: acquiring medical record data of a detected target, knowing the living habits of the detected target and analyzing the real-time mental state of the detected target;

step 2: judging whether the nuclear magnetic resonance examination is adapted or not by combining the detected target medical record data, the living habits and the real-time mental state of the detected target;

step 3: setting whether nuclear magnetic resonance conditions exist or not, setting an allowable value interval, and evaluating whether nuclear magnetic resonance condition repulsion items exist between the detected target medical record data and the life habits or not;

step 4: judging whether the detected target has the condition of receiving nuclear magnetic resonance detection;

step 5: the detected target has the condition of receiving nuclear magnetic resonance, and nuclear magnetic resonance detection is carried out on the detected target by using nuclear magnetic resonance equipment and matching with noise reduction equipment;

step 6: and (4) analyzing a nuclear magnetic resonance interference source and carrying out related processing when the detected target does not have the condition of receiving nuclear magnetic resonance.

10. The nmr aided method of claim 9, wherein the Step of detecting the interfering source in Step6 comprises: dental implant, postoperative metal, cosmetics containing heavy metal components, similar food such as seafood existing in abdominal cavity, etc.

Technical Field

The invention relates to the technical field of nuclear magnetic resonance, in particular to a device and a method for reducing noise of nuclear magnetic resonance equipment.

Background

Nuclear magnetic resonance is a physical process in which nuclei with non-zero magnetic moments undergo zeeman splitting at a spin energy level under the action of an external magnetic field, and resonate to absorb radio-frequency radiation of a certain frequency. Nuclear magnetic resonance spectroscopy is a branch of spectroscopy in which the resonance frequency is in the radio frequency band and the corresponding transition is the transition of the nuclear spin at the nuclear zeeman energy level; magnetic Resonance Imaging (MRI) examination has become a common imaging examination method, and as a new imaging examination technique, MRI has no influence on human health.

However, during the use of the nuclear magnetic resonance equipment, noise generated by high-frequency vibration is often accompanied, and the noise can affect the emotion of the detected target to a certain extent and can cause discomfort of the detected target to different extents.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides a device and a method for reducing noise of nuclear magnetic resonance equipment, which solve the problems that the noise generated by high-frequency vibration often accompanies the nuclear magnetic resonance equipment in the using process, the emotion of a detected target is influenced to a certain degree by the noise, and discomfort of the detected target with different degrees possibly occurs.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

in a first aspect, the device for reducing noise of nuclear magnetic resonance equipment comprises a side bin body, wherein a bin door is hinged to the top end of the side bin body, a cavity is formed in the bin door, a U-shaped piston is inserted into the cavity formed in the bin door, a transmission rod is inserted into the surface of the U-shaped piston through threads, one end of the transmission rod penetrates through the bin door and extends to the outside of the bin door, exhaust holes are symmetrically formed in one side of the bin door, a locking mechanism is mounted on the surface of the side bin body, and an ash cleaning mechanism is mounted on the surface of the side bin body.

Furthermore, the bottom end of the side bin body is glued with a sound-absorbing sponge, the surface of the sound-absorbing sponge is glued with a base support sleeve, and screws are inserted into the surface of the base support sleeve at equal intervals through threads.

Furthermore, one end of the transmission rod, which is arranged outside the cabin door, is fixedly connected with an arc-shaped connecting plate, and the surface of the arc-shaped connecting plate is symmetrically connected with a handle through a bearing.

Furthermore, push rods are symmetrically hinged to the surface of the cabin door, a torsion spring is sleeved on a hinge shaft of the push rods, the hinge shaft is hinged to the cabin door, and two ends of the torsion spring are respectively connected with the cabin door and the push rods.

Furthermore, the locking mechanism comprises a lock tongue, the lock tongue is fixedly connected to the bottom surface of the cabin door, a bolt is generated inside the side cabin body, a movable groove is formed in the surface of the side cabin body, a pushing handle is fixedly connected to the surface of the bolt, one end of the pushing handle penetrates through the movable groove and extends to the outside of the side cabin body, a first reset spring is sleeved on the surface of the bolt, the two ends of the first reset spring are respectively connected with the surface of the bolt and the inner wall of the side cabin body, and one end of the bolt penetrates through the lock tongue and abuts against the inner wall of the side cabin body.

Furthermore, one end of the bolt close to the lock tongue is arc-shaped, and an opening of the through hole on the surface of the lock tongue, through which the bolt passes, is arc-shaped.

Furthermore, the ash removal mechanism comprises a fixing plate, a fixing plate is fixedly connected to the surface of the side bin body, a fixing block is fixedly connected to the surface of the fixing plate, a shaft is connected to the inside of the fixing block through a bearing, a second reset spring is sleeved on the surface of the shaft, two ends of the second reset spring are respectively connected with the shaft and the inner wall of the fixing block, a transmission rope is fixedly connected to the surface of the shaft, a hack lever is symmetrically and fixedly connected to the surface of the fixing plate, a rotating part is arranged in the hack lever in a penetrating and inserting mode through bearing connection, fan blades are fixedly connected to the surface of the rotating part at equal intervals, one end, far away from the fixing block, of the transmission rope penetrates through the rotating part and extends to the outside of the rotating part, the fixing block is fixedly connected with the rotating part, and the transmission rope is connected with the surface of the bin door through a guide anti-wear mechanism.

Further, direction abrasionproof decreases mechanism includes the uide bushing, the fixed surface of the side storehouse body is connected with the uide bushing, the surface of uide bushing is connected with the gyro wheel through the pivot, the one end that the fixed block was kept away from to the driving rope passes the outside fixed connection that the uide bushing extended to the uide bushing on the surface of hatch door, the surface of driving rope offsets with the surface of gyro wheel.

In a second aspect, an auxiliary method for reducing noise of a nuclear magnetic resonance apparatus includes the following steps:

step 1: acquiring medical record data of a detected target, knowing the living habits of the detected target and analyzing the real-time mental state of the detected target;

step 2: judging whether the nuclear magnetic resonance examination is adapted or not by combining the detected target medical record data, the living habits and the real-time mental state of the detected target;

step 3: setting whether nuclear magnetic resonance conditions exist or not, setting an allowable value interval, and evaluating whether nuclear magnetic resonance condition repulsion items exist between the detected target medical record data and the life habits or not;

step 4: judging whether the detected target has the condition of receiving nuclear magnetic resonance detection;

step 5: the detected target has the condition of receiving nuclear magnetic resonance, and nuclear magnetic resonance detection is carried out on the detected target by using nuclear magnetic resonance equipment and matching with noise reduction equipment;

step 6: and (4) analyzing a nuclear magnetic resonance interference source and carrying out related processing when the detected target does not have the condition of receiving nuclear magnetic resonance.

Further, the Step of detecting interference sources by nuclear magnetic resonance in Step6 includes: dental implant, postoperative metal, cosmetics containing heavy metal components, similar food such as seafood existing in abdominal cavity, etc.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. the invention provides a device capable of playing a role in auxiliary noise reduction for nuclear magnetic resonance equipment, wherein the device surrounds the nuclear magnetic resonance equipment when in use, and noise generated by the nuclear magnetic resonance equipment in a working state loses a transmission medium mainly in a vacuum mode, so that the noise cannot be transmitted, and the purpose of noise reduction is finally achieved;

2. the invention can avoid the existence of metal near the body tissue of the detected target when the detected target is detected on the basis of noise reduction, and can reduce the generation of noise to a certain extent by eliminating and avoiding the metal, thereby improving the accuracy of the nuclear magnetic resonance detection result.

3. In the invention, all parts do not need to be set as metal materials, so that the problem that the magnetic field balance needs to be considered due to the additional arrangement of metal parts does not exist.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic perspective view of a noise reduction apparatus for a nuclear magnetic resonance device;

FIG. 2 is an exploded view of the noise reducer of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2A of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B in accordance with the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C in accordance with the present invention;

FIG. 6 is a schematic view of an independent structure of the hatch door of the present invention;

FIG. 7 is a flow chart of an auxiliary method for reducing noise of a nuclear magnetic resonance apparatus;

the reference numerals in the drawings denote: 1. a lateral bin body; 2. sound-absorbing sponge; 3. a base support sleeve; 4. a screw; 5. a cabin door; 6. a U-shaped piston; 7. a transmission rod; 8. an arc-shaped connecting plate; 9. a handle; 10. an exhaust hole; 11. a push rod; 12. a latch bolt; 13. a bolt; 14. a push handle; 15. a first return spring; 16. a fixing plate; 17. a fixed block; 18. a shaft member; 19. a second return spring; 20. a drive rope; 21. a frame bar; 22. a rotating member; 23. a fan blade; 24. a guide sleeve; 25. and a roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example 1

The device and the method for reducing the noise of the nuclear magnetic resonance equipment in the embodiment are shown in fig. 1, and comprise a side bin body 1, wherein a bin door 5 is hinged to the top end of the side bin body 1, a cavity is formed inside the bin door 5, a U-shaped piston 6 is inserted into the cavity formed inside the bin door 5, a transmission rod 7 is inserted into the surface of the U-shaped piston 6 through threads, one end of the transmission rod 7 penetrates through the bin door 5 and extends to the outside of the bin door 5, exhaust holes 10 are symmetrically formed in one side of the bin door 5, a locking mechanism is installed on the surface of the side bin body 1, and an ash cleaning mechanism is installed on the surface of the side bin body 1.

When the nuclear magnetic resonance detection device is used, the nuclear magnetic resonance equipment is arranged in the side bin body 1, a detected target is laid on the nuclear magnetic resonance equipment, before nuclear magnetic resonance detection is carried out, a user can drive the transmission rod 7 to rotate through the auxiliary component, the transmission rod 7 drives the U-shaped piston 6 on the surface of the transmission rod to move in the bin door 5 through the screw thread action in the rotating process, so that the U-shaped piston 6 extrudes air in the bin door 5 to be discharged from the exhaust hole 10, the space of the path through which the U-shaped piston 6 moves gradually forms a vacuum state, and the noise reduction effect is provided for the nuclear magnetic resonance equipment in the operation process through the vacuum space formed by the U-shaped piston 6 in the bin door 5.

As shown in fig. 2, the bottom end of the side bin body 1 is glued with the sound-absorbing sponge 2, the surface of the sound-absorbing sponge 2 is glued with the base support sleeve 3, and the surface of the base support sleeve 3 is inserted with screws 4 through threads at equal intervals.

When placing nuclear magnetic resonance equipment in the side storehouse body 1, nuclear magnetic resonance can transmit through the side storehouse body 1 in the vibrations that the operation in-process produced, when vibrations transmit to the side storehouse body 1 bottom, is absorbed by the sound sponge 2 that inhales that the side storehouse body 1 bottom links to further reduced the propagation of noise.

As shown in fig. 1, one end of the transmission rod 7, which is positioned outside the cabin door 5, is fixedly connected with an arc-shaped connecting plate 8, and the surface of the arc-shaped connecting plate 8 is symmetrically connected with a handle 9 through a bearing.

The partial structure is used for transmitting the transmission rod 7, a user holds the handle 9 by hand to rotate, and the handle 9 drives the transmission rod 7 to rotate through the connected arc-shaped connecting plate 8 to transmit a transmission effect to the U-shaped piston 6.

As shown in fig. 2, push rods 11 are symmetrically hinged to the surface of the cabin door 5, a torsion spring is sleeved on a hinge shaft where the push rod 11 is hinged to the cabin door 5, and two ends of the torsion spring are respectively connected to the cabin door 5 and the push rod 11.

When the cabin door is used, a user can pull the push rod 11, the surface of the push rod 11 is abutted against the surface of the cabin door 5 and is vertical to the side surface of the cabin door 5, at the moment, the user can push the push rod 11 upwards, and the push rod 11 transmits acting force to enable the cabin door 5 to rotate and unscrew along a hinge shaft hinged with the side cabin body 1;

the part of the structure is used when a detected target enters the nuclear magnetic resonance equipment arranged in the side bin body 1 or cleans the bin door 5, so that convenience is provided for the cleaning operation of a user.

As shown in fig. 3, the locking mechanism includes the lock tongue 12, the bottom surface fixedly connected with lock tongue 12 of hatch door 5, the inside production of the side storehouse body 1 has bolt 13, the movable groove has been seted up on the surface of the side storehouse body 1, the fixed surface of bolt 13 is connected with and pushes away 14, the one end that pushes away 14 passes the movable groove and extends to the outside of the side storehouse body 1, the surface cover of bolt 13 is equipped with first reset spring 15, the both ends of first reset spring 15 are connected with bolt 13 surface and side storehouse body 1 inner wall respectively, the one end of bolt 13 runs through lock tongue 12 and offsets with the inner wall of the side storehouse body 1.

Before a user pushes the push rod 11 to open the cabin door 5 in a transmission way, the user needs to push the push handle 14 with the other hand, the push handle 14 is stressed to drive the bolt 13 to transversely move in the side cabin body 1, the first return spring 15 is compressed to deform in the moving process, finally, one end of the bolt 13 is separated from the inside of the bolt 12, and the cabin door 5 can be smoothly opened through the transmission of the push rod 11.

As shown in fig. 3, one end of the bolt 13 close to the bolt 12 is arc-shaped, and an opening of the bolt 12 through which the bolt 13 passes is arc-shaped.

The structure enables the bolt 13 to be embedded into the bolt 12 to lock the cabin door 5, and the bolt 13 can be smoothly embedded through the guide effect caused by the arc shape without being precisely aligned with the bolt 12.

Example 2

As shown in figure 1 of the drawings, in which, 2 and 4 show, the deashing mechanism includes fixed plate 16, the fixed surface of the side storehouse body 1 is connected with fixed plate 16, the fixed surface of fixed plate 16 is connected with fixed block 17, the inside of fixed block 17 is connected with axle 18 through the bearing, the surface cover of axle 18 is equipped with second reset spring 19, the both ends of second reset spring 19 are connected with axle 18 and fixed block 17 inner wall respectively, the fixed surface of axle 18 is connected with driving rope 20, the fixed surface symmetry fixedly connected with hack lever 21 of fixed plate 16, the inside of hack lever 21 is connected through inserting through the bearing and is equipped with rotating member 22, the equidistant fixedly connected with flabellum 23 in surface of rotating member 22, the one end that fixed block 17 was kept away from to driving rope 20 passes rotating member 22 and extends to the outside of rotating member 22, fixed block 17 and rotating member 22 fixed connection, driving rope 20 is connected with hatch door 5's surface through direction abrasionproof mechanism.

When the device is used in the embodiment, the part of the structure has the triggering transmission of the opening and closing operation of the cabin door 5, the opening process of the cabin door 5 can enable the transmission rope 20 connected to the surface of the cabin door 5 to make the transmission rope oppose the pulling force, the transmission rope 20 is respectively rotated and wound on the surfaces of the shaft part 18 and the frame rod 21 under the elastic resetting force of the second resetting spring 19, the winding of the transmission rope 20 can drive the frame rod 21 to rotate in the process, so that the fan blades 23 on the surface of the frame rod 21 are driven to rotate, the position where the fan blades 23 on the surface of the fixing plate 16 are located is better in matching use effect when the device is actually used, and in the closing process of the cabin door 5 operated by a user, the cabin door 5 pulls the transmission rope 20 to be re-unfolded, and wind power for a certain time can be generated in the unfolding process;

the air in the inner space of the lateral cabin body 1 can be discharged through wind power, so that the doping amount of dust in the air is reduced;

for example, the detected object is removed before being detected, and the cosmetic powder is adsorbed on the surface of the clothes, so that the partial structure can play a certain cleaning role.

As shown in fig. 5, the guiding anti-wear mechanism includes a guiding sleeve 24, the guiding sleeve 24 is fixedly connected to the surface of the side cabin body 1, a roller 25 is connected to the surface of the guiding sleeve 24 through a rotating shaft, one end of the driving rope 20, which is far away from the fixed block 17, penetrates through the guiding sleeve 24 and extends to the surface of the guiding sleeve 24, and is fixedly connected to the surface of the cabin door 5, and the surface of the driving rope 20 is abutted to the surface of the roller 25.

Through the arrangement of the partial structure, the driving rope 20 is guided and driven inside the guide sleeve 24, and through the arrangement of the roller 25, the driving rope 20 is prevented from rubbing against the surface of the guide sleeve 24 when being guided and driven, so that the generation of large friction force or friction abrasion is further prevented.

Example 3

In a specific implementation aspect, this embodiment provides an auxiliary method for reducing noise of a nuclear magnetic resonance apparatus, as shown in fig. 7, including the following steps:

step 1: acquiring medical record data of a detected target, knowing the living habits of the detected target and analyzing the real-time mental state of the detected target;

step 2: judging whether the nuclear magnetic resonance examination is adapted or not by combining the detected target medical record data, the living habits and the real-time mental state of the detected target;

step 3: setting whether nuclear magnetic resonance conditions exist or not, setting an allowable value interval, and evaluating whether nuclear magnetic resonance condition repulsion items exist between the detected target medical record data and the life habits or not;

step 4: judging whether the detected target has the condition of receiving nuclear magnetic resonance detection;

step 5: the detected target has the condition of receiving nuclear magnetic resonance, and nuclear magnetic resonance detection is carried out on the detected target by using nuclear magnetic resonance equipment and matching with noise reduction equipment;

step 6: and (4) analyzing a nuclear magnetic resonance interference source and carrying out related processing when the detected target does not have the condition of receiving nuclear magnetic resonance.

As shown in fig. 7, the nmr detection interference sources in Step6 include: dental implant, postoperative metal, cosmetics containing heavy metal components, similar food such as seafood existing in abdominal cavity, etc.

Through the arrangement, the phenomenon that the nuclear magnetic resonance detection equipment breaks down or detection errors occur due to the fact that metal exists inside and outside a detected object in a detected state due to negligence can be avoided to a large extent.

In summary, the invention provides a device capable of assisting in noise reduction for nuclear magnetic resonance equipment, the device surrounds the nuclear magnetic resonance equipment when in use, and noise generated by the nuclear magnetic resonance equipment in a working state loses a transmission medium mainly in a vacuum mode, so that the noise cannot be transmitted, and the purpose of noise reduction is finally achieved;

the invention can avoid the existence of metal near the body tissue of the detected target when the detected target is detected on the basis of noise reduction, and can reduce the generation of noise to a certain extent by eliminating and avoiding the metal, thereby improving the accuracy of the nuclear magnetic resonance detection result.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.