CN218606594U - Scanning bed assembly and magnetic resonance equipment - Google Patents

Abstract

The utility model provides a scanning bed subassembly and magnetic resonance equipment. The scanning bed component is suitable for a magnetic resonance system and comprises a local coil and a scanning bed, wherein the scanning bed is provided with a movable bed board and a fixed bed board along the length direction, the movable bed board is hinged with the fixed bed board, and the movable bed board can rotate relative to the fixed bed board so as to switch the movable bed board between a folding state and an opening state. The local coil is carried on the top of the movable bed plate; when the movable bed board is in a folding state, the movable bed board is aligned with the fixed bed board. When the movable bed board is in an open state, the movable bed board can form a set inclination angle relative to the fixed bed board. The movable bed board can be switched between a folding state and an opening state by adjusting the position of the movable bed board relative to the fixed bed board, and the movable bed board can be adjusted to be at a preset inclination angle with the fixed bed board to the maximum extent according to actual design requirements. Therefore, the angle of the local coil arranged on the movable bed plate can be adjusted to adapt to different objects to be measured.

Description

Scanning bed assembly and magnetic resonance equipment

Technical Field

The utility model relates to a magnetic resonance imaging field, in particular to scanning bed subassembly and magnetic resonance equipment.

Background

Magnetic Resonance, also known as Magnetic Resonance Imaging (MRI) or Nuclear Magnetic Resonance Imaging (NMRI), is a further significant advance in medical Imaging following CT. Since the 80 s of application, it has developed at an extremely rapid rate. The basic principle is that a human body is placed in a special magnetic field, and when a measured object is placed in the magnetic field, hydrogen atoms in the human body can be polarized. Radio frequency pulses are used to excite hydrogen nuclei in the human body, causing the hydrogen nuclei to resonate and absorb energy. After the radio frequency pulse stops, the hydrogen atomic nucleus emits radio signals at a specific frequency, releases absorbed energy, is collected by an in vitro receiver, and obtains an image after being processed by an electronic computer.

MRI provides an amount of information that is not only greater than many other imaging techniques in medical imaging, but also different from existing imaging techniques. Therefore, it has great potential advantages in disease diagnosis. Because it can directly make cross section, sagittal plane, coronal plane and various oblique plane tomographic images; and has no ionizing radiation and no adverse effect on the body, and thus is increasingly used in the medical field.

The radio frequency coil is an important component of a magnetic resonance imaging system or equipment and is used for generating radio frequency pulses to excite a scanned object and generate magnetic resonance signals; then, the radio frequency coil receives the magnetic resonance signal, and 2D or 3D pictures of the scanned object are obtained through subsequent data processing. In order to better acquire the magnetic resonance signal of the scanned part and improve the signal-to-noise ratio of the image, local coils are widely used. Local coils are typically designed for a particular scanned area, such as for the ankle, wrist, spine and head, respectively. Among them, the local coil for the head is also called a local coil.

Existing local coils are typically used flat on a scanning bed. The use of local coils creates certain difficulties when the object being scanned is a humpback patient. In order to adapt the local coil to the humpback patient, the following two methods are generally adopted in the prior art: (1) A special cushion or sand bag is added between the local coil and the scanning bed to adjust the placing angle of the local coil; (2) The structure of the local coil is set to be adjustable angle, and is suitable for the inspection of the humpback patient by adjusting to a proper angle. Wherein, for the first mode, the corresponding cushion or sandbag is usually selected by experience, and the adjustment precision is low; for the second mode, the structure of the local coil needs to be designed additionally, the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a scanning bed subassembly and magnetic resonance equipment.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a scanning bed assembly is suitable for a magnetic resonance system and comprises a local coil and a scanning bed, wherein the scanning bed is provided with a movable bed board and a fixed bed board along the length direction, the movable bed board is hinged with the fixed bed board and can rotate relative to the fixed bed board, so that the movable bed board can be switched between a retracted state and an opened state;

wherein, the local coil is arranged at the top of the movable bed plate;

when the movable bed board is in the retracted state, the movable bed board is aligned with the fixed bed board;

when the movable bed board is in the open state, the movable bed board can form a set inclination angle relative to the fixed bed board.

In this scheme, through adjusting the position of activity bed board for fixed bed board, can make the activity bed board switch between the state of packing up and the open mode, according to actual design demand, the biggest adjustable is to be preset inclination with fixed bed board. Therefore, the angle of the local coil arranged on the movable bed plate can be adjusted to adapt to different objects to be measured. In addition, the angle of the local coil is simple in adjustment process, and the adjustment precision is high.

Preferably, the local coil is detachably connected to the top of the movable bed plate.

In this scheme, local coil can dismantle with the activity bed board and be connected, can dismantle local coil according to the user demand of difference, and the flexibility is stronger.

Preferably, one side of the local coil facing the movable bed plate is provided with a first clamping portion, one side of the movable bed plate facing the local coil is provided with a second clamping portion, and the local coil is matched with the movable bed plate through the first clamping portion and the second clamping portion to realize clamping connection with the movable bed plate.

In the scheme, the local coil is connected with the movable bed plate simply and reliably.

Preferably, the first engaging portion is a protruding portion, and the second engaging portion is a slot.

In this scheme, first block portion sets up to the bulge, and is minimum to local coil's structure influence, is favorable to guaranteeing magnetic resonance imaging's reliability.

Preferably, the scanning bed assembly further comprises a driving assembly, and an output end of the driving assembly is connected to and acts on the bottom of the movable bed plate to drive the movable bed plate to rotate relative to the fixed bed plate.

In this scheme, set up drive assembly, conveniently realize the rotation of movable bed board for fixed bed board, and then conveniently realize local coil's angular adjustment.

Preferably, drive assembly includes drive division and drive mechanism, drive mechanism includes lead screw, slider and connecting rod in proper order along the transmission direction, the first end of lead screw connect in the drive division, the slider sets up the second end of lead screw, the first end of connecting rod with the top of slider is articulated to be connected, the second end of connecting rod with the bottom of activity bed board is articulated to be connected.

In this scheme, drive mechanism's simple structure is favorable to simplifying the overall structure of scanning bed subassembly. The driving part drives the screw rod to rotate, so that the sliding block slides relative to the screw rod, and the sliding block slides to drive the connecting rod to rotate, and further drives the movable bed plate to rotate relative to the fixed bed plate.

Preferably, the scanning bed further comprises a fixed frame extending along the length direction of the scanning bed, the fixed frame is located at the bottom of the fixed bed plate and the bottom of the movable bed plate, and the bottom of the fixed bed plate is connected to the top of the fixed frame through a plurality of supporting pieces arranged at intervals;

the transmission mechanism is located between the movable bed board and the fixed frame, and the screw rod is arranged at the top of the fixed frame through the mounting seat.

In this scheme, drive mechanism sets up between activity bed board and mount, can utilize the space between activity bed board and the mount, has improved space utilization. In addition, the transmission mechanism is arranged at the position, and the transmission mechanism is also beneficial to protection.

Preferably, the driving part comprises a rotating handle, and a first end of the screw rod extends out of the movable bed board along the length direction of the scanning bed.

In this scheme, adopt the rotation handle as drive division, simple structure, it is with low costs. The rotary handle is positioned outside the scanning bed, so that a reserved space for the rotary handle in the space range of the scanning bed is not required, and the space occupied by the scanning bed is favorably reduced.

The utility model also provides a magnetic resonance equipment, it includes:

the scanning bed is provided with a movable bed board and a fixed bed board along the length direction, the movable bed board is hinged with the fixed bed board and can rotate relative to the fixed bed board so as to switch the movable bed board between a folding state and an opening state;

the local coil is carried on the top of the movable bed plate;

when the movable bed board is in the retracted state, the local coil is horizontally borne on the scanning bed;

when the movable bed board is in the open state, the local coil is carried on the scanning bed at a set inclination angle.

In this scheme, through adjusting the position or the angle of activity bed board for fixed bed board, can adjust the angle of the local coil that sets up on the activity bed board, consequently, can adapt to different detection or scanning object, even the hunchback patient adopts this magnetic resonance equipment also can carry out the magnetic resonance inspection comparatively reliably.

The utility model discloses an actively advance the effect and lie in:

in the scanning bed assembly, the movable bed plate can be switched between a folding state and an opening state by adjusting the position of the movable bed plate relative to the fixed bed plate, and the movable bed plate can be adjusted to be at a preset inclination angle with the fixed bed plate to the maximum extent according to actual design requirements. Therefore, the angle of the local coil arranged on the movable bed plate can be adjusted to adapt to different objects to be measured. In addition, the angle of the local coil is simple in adjustment process, and the adjustment precision is high. Accordingly, the magnetic resonance apparatus can reliably perform a magnetic resonance examination on a kyphosis patient.

Drawings

Fig. 1 is a schematic structural view of a scanning bed assembly according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a part of the structure of the scanning bed assembly according to a preferred embodiment of the present invention.

Fig. 3 is another schematic structural diagram of a scanning bed assembly according to a preferred embodiment of the present invention.

Description of the reference numerals:

10 local coil

101 first engaging part

20 scanning bed

201 movable bed board

2011 second engaging part

202 fixed bed board

30 drive part

40 screw mandrel

50 slider

60 connecting rod

70 fixed mount

701 support piece

80 mounting base

90 hinge

Detailed Description

The present invention will be more clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-3, the present embodiment provides a scanning bed assembly that is suitable for use in a magnetic resonance system. The scanning bed assembly comprises a local coil 10 and a scanning bed 20, the scanning bed 20 is provided with a movable bed board 201 and a fixed bed board 202 along the length direction, the movable bed board 201 is hinged with the fixed bed board 202, and the movable bed board 201 can rotate relative to the fixed bed board 202 so as to switch the movable bed board 201 between a folding state and an opening state. Wherein, the local coil 10 is installed on the top of the movable bed board 201. When the movable bed board 201 is in the retracted state, the movable bed board 201 is aligned with the fixed bed board 202. When the movable bed board 201 is in the open state, the movable bed board 201 can form a set inclination angle with respect to the fixed bed board 202. Fig. 1 shows that the movable bed board 201 is hinged to the fixed bed board 202 through a hinge 90. The local coil 10 is one or a combination of a head receiving coil, a head transceiver integrated coil, a shoulder receiving coil, a shoulder transceiver integrated coil, a knee joint receiving coil, a knee joint transceiver integrated coil, and an ankle receiving coil.

In the present embodiment, the local coil 10 is exemplified by a head receiving coil, and the position of the movable bed board 201 relative to the fixed bed board 202 is adjusted to switch the movable bed board 201 between the retracted state and the opened state, and the local coil can be adjusted to a preset inclination angle with the fixed bed board 202 at most according to actual design requirements. Thus, the angle of the local coil 10 provided on the movable table 201 can be adjusted to suit different objects to be measured. It should be noted that, compared with the prior art in which a special cushion or a sandbag is added between the head coil and the scanning bed 20 to adjust the angle at which the head coil is placed, the adjustment of the angle of the head coil in this embodiment can be adaptively adjusted according to the corresponding detection object, and is convenient to adjust and high in adjustment precision. Compared with the scheme that the structure of the head coil is set to be adjustable in angle in the prior art, the adjustment of the head angle of the head coil in the embodiment has lower requirements on the structure of the head coil, and the whole structure of the scanning bed assembly is simplified.

When the scanning couch assembly in this embodiment is applied to a magnetic resonance system or a magnetic resonance apparatus (in this case, the magnetic resonance system or the magnetic resonance apparatus includes the scanning couch assembly), the angle of the local coil 10 disposed on the movable couch top 201 may be adjusted by adjusting the position or the angle of the movable couch top 201 with respect to the fixed couch top 202 according to different detection requirements of a detected or scanned object. Therefore, even for a humpback patient, the magnetic resonance examination can be performed more reliably by using the magnetic resonance apparatus.

The connection of the lower local coil 10 and the movable floor 201 is explained below with reference to fig. 2 and 3.

In this embodiment, in order to disassemble the local coil 10 according to different requirements of use, so as to make the scanning bed assembly more flexible, the local coil 10 is detachably connected to the top of the movable bed board 201.

Specifically, in the present embodiment, a first engaging portion 101 is provided on a side of the local coil 10 facing the movable plate 201, a second engaging portion 2011 is provided on a side of the movable plate 201 facing the local coil 10, and the local coil 10 is engaged with the movable plate 201 through the first engaging portion 101 and the second engaging portion 2011. The local coil 10 and the movable bed board 201 are connected simply and reliably.

In an exemplary embodiment, as shown in fig. 3, the first engaging portion 101 is a protrusion, and the second engaging portion 2011 is a slot. The first engaging portion 101 is a protruding portion, which has a minimal effect on the structure of the local coil 10 and is beneficial to ensuring the reliability of magnetic resonance imaging.

It should be noted that, in other alternative embodiments, the first engaging portion 101 may be configured as a slot and the second engaging portion 2011 may be configured as a protrusion without affecting the function of the local coil 10.

It should be further noted that, in other alternative embodiments, the local coil 10 may be configured to be detachably connected to the movable bed plate 201 by other connection manners, such as an adhesive connection, a threaded connection, and the like.

Meanwhile, it should be noted that, in other alternative embodiments, the local coil 10 may also be configured to be fixedly connected to the movable bed plate 201.

At least as shown in fig. 1, in order to facilitate the rotation of the movable bed board 201 relative to the fixed bed board 202 and further facilitate the angular adjustment of the local coil 10, the scanning bed assembly is configured to further include a driving assembly, and an output end of the driving assembly is connected to and acts on the bottom of the movable bed board 201 to drive the movable bed board 201 to rotate relative to the fixed bed board 202.

Specifically, the driving assembly comprises a driving part 30 and a transmission mechanism, the transmission mechanism sequentially comprises a screw rod 40, a sliding block 50 and a connecting rod 60 along a transmission direction, a first end of the screw rod 40 is connected to the driving part 30, the sliding block 50 is arranged at a second end of the screw rod 40, a first end of the connecting rod 60 is hinged to the top of the sliding block 50, and a second end of the connecting rod 60 is hinged to the bottom of the movable bed board 201.

Wherein, the transmission mechanism has simple structure, and is beneficial to simplifying the integral structure of the scanning bed component. The driving part 30 drives the screw rod 40 to rotate, so that the sliding block 50 slides relative to the screw rod 40, and the sliding block 50 slides to drive the connecting rod 60 to rotate, thereby driving the movable bed board 201 to rotate relative to the fixed bed board 202.

As shown in fig. 1, the present embodiment employs a rotating handle as the driving unit 30. Specifically, when the adjustment is performed, the position of the movable bed plate 201 relative to the fixed bed plate 202 can be changed by rotating the rotating handle, and the angle of the local coil 10 can be adjusted. That is, the rotary handle is adopted as the driving part 30, so that the structure is simple, the adjustment is convenient, and the cost is low.

Of course, in other alternative embodiments, a motor may be used as the driving portion 30, so that automatic adjustment can be achieved, and the adjustment is more labor-saving.

In addition, it should be noted that, in other alternative embodiments, the transmission mechanism may also be configured in other structures, as long as the rotation of the movable bed plate 201 relative to the fixed bed plate 202 can be realized, and further, the position adjustment of the movable bed plate 201 relative to the fixed bed plate 202 is realized to realize the angle adjustment of the local coil 10, which is not limited specifically herein.

As shown in fig. 1 and 3, a movable bed plate 201 extends from a first end of the screw 40 in the longitudinal direction of the scanning bed 20. Wherein, rotatory handle is connected in the first end of lead screw 40, and the activity bed board 201 is extended to the first end of lead screw 40 and makes rotatory handle be located the outside of scanning bed 20, so sets up, need not to reserve space for setting up of rotatory handle in the space range of scanning bed 20, is favorable to reducing the space that scanning bed 20 occupy, and also is convenient for operate rotatory handle, and then is convenient for realize local coil 10's angle modulation.

Further, as shown in fig. 1 to 3, the scanning bed 20 further includes a fixed frame 70 extending along the length direction of the scanning bed 20, the fixed frame 70 is located at the bottom of the fixed bed board 202 and the movable bed board 201, and the bottom of the fixed bed board 202 is connected to the top of the fixed frame 70 through a plurality of supporting members 701 arranged at intervals. Wherein, the transmission mechanism is located between the movable bed board 201 and the fixed mount 70, and the screw rod 40 is arranged at the top of the fixed mount 70 through the mounting seat 80. The transmission mechanism is arranged between the movable bed board 201 and the fixed frame 70, and can utilize the space between the movable bed board 201 and the fixed frame 70, so that the space utilization rate is improved. In addition, the transmission mechanism is arranged at the position, and the transmission mechanism is also beneficial to protection.

The fixed frame 70 serves as a base, and can integrally support the movable bed board 201 and the fixed bed board 202, so as to support the object to be detected or scanned and facilitate movement of the scanning bed 20.

The number of the supporting members 701 is not particularly limited, and in this embodiment, five supporting members 701 are disposed on both sides of the fixed bed board 202 along the length direction, and the supporting members 701 on both sides of the fixed bed board 202 are symmetrically disposed.

It should be noted that, in alternative embodiments, the bottom of the movable bed board 201 may be provided with a corresponding support structure without interfering with the rotation of the movable bed board 201 relative to the fixed bed board 202, which is not limited in particular here.

The present embodiment also provides a magnetic resonance apparatus comprising the above-described scanning bed assembly. Specifically, the magnetic resonance apparatus includes: the scanning bed 20 is provided with a movable bed board 201 and a fixed bed board 202 along the length direction, the movable bed board 201 is hinged with the fixed bed board 202, and the movable bed board 201 can rotate relative to the fixed bed board 202 so as to switch the movable bed board 201 between a folding state and an opening state; the local coil 10 is carried on the top of the movable bed plate 201. When the movable bed board 201 is in the retracted state, the local coil 10 is horizontally supported on the scanning bed 20. When the movable couch 201 is in the open state, the local coil is supported on the scanning couch 20 at a predetermined tilt angle.

The magnetic resonance apparatus further includes a magnetic resonance tomography scanner, the magnetic resonance tomography scanner has an inspection channel for the scanning bed 20 to pass through, after the subject to be detected or scanned is laid on the scanning bed 20, the angle of the local coil 10 can be adjusted by operating the driving unit 30 according to the specific physical characteristics of the subject to be detected or scanned until the angle of the local coil 10 can match the subject to be detected or scanned, and at this time, the magnetic resonance examination step in the prior art can be referred to, so that the scanning bed 20 passes through the inspection channel for the magnetic resonance examination.

In this embodiment, a magnetic resonance tomography scanner in the prior art is adopted, and the structure and the working principle of the magnetic resonance tomography scanner are common knowledge in the field, and are not described herein again.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (10)

1. A scanning bed assembly, suitable for a magnetic resonance system, comprising a local coil (10) and a scanning bed (20), wherein the scanning bed (20) has a movable bed plate (201) and a fixed bed plate (202) along a length direction, the movable bed plate (201) is hinged with the fixed bed plate (202), and the movable bed plate (201) is rotatable relative to the fixed bed plate (202) to switch the movable bed plate (201) between a retracted state and an opened state;

wherein the local coil (10) is carried on the top of the movable bed plate (201);

when the movable bed board (201) is in the retracted state, the movable bed board (201) is aligned with the fixed bed board (202);

when the movable bed board (201) is in the open state, the movable bed board (201) can form a set inclination angle relative to the fixed bed board (202).

2. The scanning bed assembly of claim 1 wherein the local coil (10) is removably attached to the top of the couch plate (201).

3. The scanning bed assembly as claimed in claim 2, wherein a first engaging portion (101) is disposed on a side of the local coil (10) facing the movable bed board (201), a second engaging portion (2011) is disposed on a side of the movable bed board (201) facing the local coil (10), and the local coil (10) is engaged with the movable bed board (201) through the first engaging portion (101) and the second engaging portion (2011).

4. The scanning bed assembly of claim 3, wherein the first engaging portion (101) is a protrusion and the second engaging portion (2011) is a slot.

5. The scanning bed assembly of any one of claims 1-4, further comprising a drive assembly having an output connected to and acting on the bottom of the movable bed plate (201) to drive the movable bed plate (201) to rotate relative to the fixed bed plate (202).

6. The scanning bed assembly of claim 5, wherein the driving assembly comprises a driving part (30) and a transmission mechanism, the transmission mechanism comprises a screw rod (40), a sliding block (50) and a connecting rod (60) in sequence along a transmission direction, a first end of the screw rod (40) is connected to the driving part (30), the sliding block (50) is arranged at a second end of the screw rod (40), a first end of the connecting rod (60) is hinged with a top of the sliding block (50), and a second end of the connecting rod (60) is hinged with a bottom of the movable bed plate (201).

7. The scanning bed assembly of claim 6, wherein the scanning bed further comprises a fixed frame (70) extending along the length direction of the scanning bed (20), the fixed frame (70) is located at the bottom of the fixed bed board (202) and the movable bed board (201), and the bottom of the fixed bed board (202) is connected to the top of the fixed frame (70) through a plurality of supports (701) arranged at intervals;

the transmission mechanism is located between the movable bed board (201) and the fixed frame (70), and the screw rod (40) is arranged at the top of the fixed frame (70) through the mounting seat (80).

8. The scanning bed assembly of claim 7, wherein the drive portion (30) includes a rotating handle, and a first end of the lead screw (40) extends out of the movable bed plate (201) along a length of the scanning bed.

9. A magnetic resonance apparatus, characterized in that it comprises:

the scanning bed (20) is provided with a movable bed board (201) and a fixed bed board (202) along the length direction, the movable bed board (201) is hinged with the fixed bed board (202), and the movable bed board (201) can rotate relative to the fixed bed board (202) so as to enable the movable bed board (201) to be switched between a folded state and an opened state;

the local coil (10) is carried on the top of the movable bed board (201);

when the movable bed board (201) is in the retracted state, the local coil (10) is horizontally loaded on the scanning bed (20);

when the movable bed board (201) is in the open state, the local coil (10) is carried on the scanning bed (20) at a set inclination angle.

10. The mr apparatus of claim 9 wherein the local coil (10) is at least one of a head receive coil, a head transceiver-integrated coil, a shoulder receive coil, a shoulder transceiver-integrated coil, a knee receive coil, a knee transceiver-integrated coil, and an ankle receive coil.

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