CN215375600U - Measuring support and measuring device of magnetic resonance system - Google Patents

Abstract

A measurement stand for a magnetic resonance system comprises a stand body (10), a rotary shaft (20) and a pair of bottom adapters (30). The rotating shaft is rotatably provided to the holder body along a first direction (Z) and is used to mount the probe array board. The bottom adapters are detachably disposed at one end of the stand body along a second direction (Y) and are arranged along a third direction (X). The bottom adapter can be arranged on a track in the central bore of the magnetic resonance system and keeps the axis of the rotating shaft coincident with the center line of the magnetic field. The measuring stand structure is more stable and does not need to be replaced as a whole. The utility model also provides a measuring device with the measuring bracket.

Description

Measuring support and measuring device of magnetic resonance system

Technical Field

The utility model relates to a measuring support, in particular to a measuring support for a magnetic resonance system, and also relates to a measuring device with the measuring support.

Background

In order to obtain a homogeneous magnetic field, the magnetic resonance system requires a measurement of the magnetic field by means of a measuring device during installation. The measuring device includes a probe array plate and a measuring holder for holding the probe array plate at a central position of a magnetic field. The existing measuring support is low in structural strength, and when a magnetic resonance system with central holes of different shapes is measured, the measuring support needs to be integrally replaced, so that the measuring cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a measuring bracket of a magnetic resonance system, which does not need to be integrally replaced and has more stable structure when measuring the magnetic resonance system with central holes of different shapes.

Another object of the present invention is to provide a measuring apparatus for a magnetic resonance system, which does not require the entire measurement holder to be replaced and which has a more stable structure when measuring a magnetic resonance system having a central bore of a different shape.

The utility model provides a measuring bracket of a magnetic resonance system, which comprises a bracket body, a rotating shaft and a pair of bottom adapters. The rotating shaft is arranged on the bracket body along a first direction, can rotate around the axis of the rotating shaft, and is used for mounting the probe array plate and enabling the measuring center line of the probe array plate to coincide with the axis of the rotating shaft. Each bottom adapter is detachably arranged at one end of the support body along a second direction perpendicular to the first direction, the pair of bottom adapters are arranged along a third direction, the third direction is perpendicular to the first direction and the second direction respectively, the pair of bottom adapters can be correspondingly arranged on a pair of tracks in a central hole of the magnetic resonance system, and the pair of tracks can limit the movement of the pair of bottom adapters in the third direction and enable the axis of the rotating shaft to be coincident with the central line of the magnetic field.

The utility model provides a measuring bracket of a magnetic resonance system, which can support a rotating shaft for installing a probe array plate through a bracket body, and support the bracket body on a pair of guide rails in a central hole through a pair of adapter parts which are detachably arranged at the bottom of the bracket body, so that the axis of the rotating shaft on the bracket body is kept coincident with the central line of a magnetic field in the central hole. The measuring bracket provided by the utility model has a more stable structure and a simple positioning process. In addition, when the magnetic resonance system with the central hole in different shapes is measured, the bottom adapter can be replaced according to the shape of the central hole, or the mounting position of the bottom adapter on the bracket body is changed, the whole measurement bracket does not need to be replaced, and the cost is saved.

In a further exemplary embodiment of the measuring stand of the magnetic resonance system, the measuring stand further comprises a rotary disk and at least one rotary handle. The rotating disc is coaxially fixed to one end of the rotating shaft. The rotating handle is arranged on the rotating disc and extends along the first direction, and a plurality of positioning holes uniformly distributed around the axis of the rotating shaft are formed in the support body. At least one rotating handle is movably arranged in the rotating disc in a penetrating mode along the first direction, the rotating handle can also be arranged in one of the positioning holes in the penetrating mode, and the rotating disc is prevented from rotating relative to the support body. The rotating handle is convenient to grasp and drive the rotating disc, and then the rotating shaft is driven to rotate. A turn handle movably provided to the turn disc can position the turning shaft at a desired position.

In a further exemplary embodiment of the measurement mount of the magnetic resonance system, the measurement mount further comprises at least one elastic member which applies an elastic force to the rotary disk and the rotary handle movably disposed through the rotary disk, respectively, so that the rotary handle disposed through the positioning hole is held in the positioning hole. The elastic piece can prevent the rotating handle from separating from the positioning hole after the rotating disc is fixed.

In another exemplary embodiment of a measurement mount for a magnetic resonance system, a mount body comprises a front support plate, a rear support plate and a plurality of cross members. The front support plate is perpendicular to the first direction. The rear support plate is perpendicular to the first direction and is disposed on the front support plate side in the first direction. Each crossbeam extends and at both ends difference fixed connection in preceding backup pad and back backup pad along first direction, and the bottom adapter is fixed in the crossbeam through wearing to locate the crossbeam and threaded connection in the fixing bolt of bottom adapter. The structure saves material cost, and is stable and convenient to process and assemble.

In a further exemplary embodiment of the measuring carriage of the magnetic resonance system, the carriage body further comprises a bearing, a cover plate and a rotary disk. The bearing sets up in back backup pad, and the one end of axis of rotation sets up in the bearing. The cover plate is circular and is arranged on one surface of the front supporting plate, which faces back to the back supporting plate, and the cover plate is sunken on one surface of the front supporting plate and forms a circular rotating groove with the back supporting plate. The rotating disc is correspondingly arranged in the rotating groove and can rotate around the axis of the rotating groove.

In another exemplary embodiment of a measuring support of a magnetic resonance system, each bottom adapter has at least two mounting positions on the support body, the bottom adapters being mountable in different mounting positions to be able to be correspondingly arranged on tracks in central bores of different shapes or different sizes and to keep the axis of the rotary shaft coinciding with the center line of the magnetic field. By means of the structure, the same type of bottom adapter can be used for adapting central holes with different shapes or different sizes, and the processing cost of the bottom adapter is saved.

In another exemplary embodiment of the measurement mount of the magnetic resonance system, the measurement mount further comprises a top adapter removably disposed at an end of the mount body distal from the bottom adapter in the second direction, the top adapter capable of abutting an inner surface of the central bore to limit movement of the mount body in the second direction and the first direction.

In another exemplary embodiment of a measurement mount for a magnetic resonance system, a top adapter includes an adapter body, a trim bolt, and an operating ring. The adapter body is detachably arranged on the bracket body. The fine tuning bolt is connected to one end, far away from the bottom adapter, of the adapter body in a threaded mode along the second direction, and the fine tuning bolt is provided with a rubber cap at one end, far away from the bottom adapter. The operating ring is coaxially sleeved and fixed on the fine adjustment bolt, and the circumferential outer surface of the operating ring is provided with anti-skid grains. The structure is convenient for the installation of the measuring support and can offset the processing error.

In another exemplary embodiment of a measurement mount for a magnetic resonance system, the measurement mount comprises two pairs of bottom adapters, the two pairs of bottom adapters being arranged at positions of the mount body near the two ends in the first direction, respectively. The size of the bottom adapter can be reduced through the structure, and the material cost is saved.

The utility model also provides a measuring device of the magnetic resonance system, which comprises a probe array plate and the measuring bracket. The probe array plate is arranged on the rotating shaft, and the measuring center line of the probe array plate coincides with the axis of the rotating shaft.

Drawings

The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.

Fig. 1 is a schematic structural view of an exemplary embodiment of a measuring stand of a magnetic resonance system.

Fig. 2 is a schematic diagram for explaining a use state of a measurement stand of the magnetic resonance system.

Fig. 3 is a schematic view for explaining another use state of the measurement mount of the magnetic resonance system.

Figure 4 is a schematic diagram of a measurement gantry of a magnetic resonance system.

Figure 5 is a schematic structural view of another exemplary embodiment of a measurement mount of a magnetic resonance system.

Figure 6 is an exploded view of a measurement support of the magnetic resonance system.

Figure 7 is a partially cross-sectional schematic view of a measurement mount of a magnetic resonance system.

Description of the reference symbols

10 stent body

11 front supporting plate

111 locating hole

12 cover plate

121 rotating groove

13 rotating disc

14 rear support plate

15 bearing

16 crossbeam

17 rotating handle

18 spring

20 rotating shaft

30 bottom adapter

40 top adapter

41 adapter body

42 fine-tuning bolt

43 rubber cap

44 operating ring

50 probe array plate

60 center hole

62 track

70 fixed bolt

Z first direction

Y second direction

X third direction

Detailed Description

In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings, wherein the same reference numerals in the drawings refer to the same or similar structural or functional components.

"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.

Fig. 1 is a schematic top view of an exemplary embodiment of a measuring stand for a magnetic resonance system. Referring to fig. 1, the measurement stand of the magnetic resonance system includes a stand body 10, a rotation shaft 20, and two pairs of bottom adapters 30.

Fig. 2 is a schematic diagram for explaining a use state of a measurement stand of the magnetic resonance system. Referring to fig. 2 and 1, the rotating shaft 20 is provided to the holder body 10 in one first direction Z, and the rotating shaft 20 may rotate about its axis. The rotary shaft 20 is used to mount the probe array plate 50, and in the exemplary embodiment, a groove for mounting the probe array plate 50 is formed on the rotary shaft 20, and the probe array plate 50 may be fixed in the groove such that a measurement center line of the probe array plate 50 coincides with an axis of the rotary shaft 20.

Fig. 3 is a schematic view for explaining another use state of the measurement mount of the magnetic resonance system. Referring to fig. 1 to 3, each of the bottom adapters 30 is removably disposed at one end of the stand body 10 along a second direction Y perpendicular to the first direction Z, and each of the bottom adapters 30 is aligned along a third direction X perpendicular to the first direction Z and the second direction Y, respectively. Two pairs of bottom adapters 30 are respectively provided at positions near both ends of the stand body 10 in the first direction Z. The magnetic resonance system typically has a central bore 60 and is capable of forming a magnetic field within the central bore 60. The central bore 60 typically has a pair of rails 62 therein, the rails 62 being used for the deck to carry the subject to the central bore 60. The two pairs of bottom adapters 30 can be correspondingly disposed to a pair of rails 62 within a central bore 60 of the magnetic resonance system. The pair of rails 62 can limit the movement of the two pairs of bottom adapters 30 in the third direction X and keep the axis of the rotating shaft 20 coincident with the center line of the magnetic field in the central bore 60.

Although the measuring stand comprises two pairs of bottom adapters 30 in the illustrated embodiment, the volume of each bottom adapter 30 can be sufficiently small to save material costs while satisfying the requirement of stabilizing the support stand body 10. However, without being limited thereto, in other exemplary embodiments the number of bottom adapters 30 may be provided according to actual needs, of course only one pair of bottom adapters 30 may be included.

When the measuring bracket provided by the utility model is used, the rotating shaft 20 for installing the probe array plate 50 can be supported by the bracket body 10, the bracket body 10 is supported on a pair of guide rails in the central hole 60 by the bottom adapter 30 detachably arranged on the bracket body 10, so that the axis of the rotating shaft 20 on the bracket body 10 is kept coincident with the central line of the magnetic field in the central hole 60, and the positioning can be realized only by adjusting the position on the measuring bracket rail 62. The measuring bracket provided by the utility model has a more stable structure and a simple positioning process.

In an exemplary embodiment, referring to fig. 1 to 3, the measuring stand further includes a top adapter 40 removably disposed at an end of the stand body 10 away from the bottom adapter 30 along the second direction Y. The top adapter 40 can abut against the inner surface of the central hole 60 to limit the movement of the stand body 10 in the second direction Y, while limiting the movement of the stand body 10 in the first direction Z by means of the friction between the top adapter 40 and the inner surface of the central hole 60.

Figure 4 is a schematic diagram of a measurement gantry of a magnetic resonance system. Figure 5 is a schematic structural view of another exemplary embodiment of a measurement mount of a magnetic resonance system. Referring to fig. 4 and 5, in measuring a magnetic resonance system having a central hole 60 of different shape or different size, the bottom adapter 30 and the top adapter 40 of different shape may be replaced according to the shape or size of the central hole 60, or the mounting positions of the bottom adapter 30 and the top adapter 40 on the stand body 10 may be changed, whereby the position of the stand body 10 within the central hole 60 is adjusted such that the axis of the rotating shaft 20 is kept coincident with the center line of the magnetic field, while the top adapter 40 can fix the stand body 10 against the inner surface of the central hole 60. The measuring bracket does not need to be replaced entirely, and the manufacturing cost is saved.

In an exemplary embodiment, referring to fig. 4 and 5, each bottom adapter 30 has two mounting locations on the bracket body 10, and the bottom adapters 30 can be mounted at different mounting locations. When mounted in a central hole 60 of a different shape or size, the bottom adapter 30 mounted in the corresponding position can be disposed on the rail 62 in the central hole 60 while keeping the axis of the rotating shaft 20 coincident with the center line of the magnetic field in the central hole 60. By this construction, the same bottom adapter 30 can be used to fit differently shaped central holes 60, saving machining costs of the bottom adapter 30.

In an exemplary embodiment, referring to fig. 4 and 5, the top adapter 40 includes an adapter body 41, a trim bolt 42, and an operating ring 44. The adapter body 41 is detachably provided to the holder body 10. The fine adjustment bolt 42 is threadedly connected to the adapter body 41 at an end remote from the bottom adapter 30 in the second direction Y, and the fine adjustment bolt 42 has a rubber cap 43 at an end remote from the bottom adapter 30. The operation ring 44 is coaxially sleeved and fixed on the fine adjustment bolt 42, and the circumferential outer surface of the operation ring 44 is formed with anti-slip lines. The operation ring 44 facilitates the finger to grasp and turn the fine adjustment bolt 42 to adjust the position of the fine adjustment bolt 42 in the second direction Y. The trim bolt 42 may abut the inner surface of the central bore 60 with a rubber cap 43, thereby increasing the friction with the inner surface of the central bore 60. When the measuring bracket is installed, the operating ring 44 can be rotated to withdraw the fine tuning bolt 42, after the position of the bracket body 10 in the first direction Z is adjusted, the fine tuning bolt 42 is extended out, and the rubber cap 43 is abutted against the inner surface of the central hole 60, so that the installation process is convenient, and part of machining errors can be offset.

Figure 6 is an exploded view of a measurement support of the magnetic resonance system. Referring to fig. 6, in the exemplary embodiment, the stent body 10 includes a front support plate 11, a rear support plate 14, and a plurality of cross members 16. The front support plate 11 is perpendicular to the first direction Z, and the top adapter 40 is fixed to the front support plate 11 by a fixing bolt 70 that is inserted through the front support plate 11 and is screwed to the top adapter 40. The rear support plate 14 is perpendicular to the first direction Z and is disposed on the front support plate 11 side in the first direction Z. Each cross member 16 extends in the first direction Z and is fixedly connected at both ends to the front support plate 11 and the rear support plate 14 by bolts, respectively. The bottom adapter 30 is fixed to the cross member 16 by fixing bolts 70 that are inserted through the cross member 16 and screwed to the bottom adapter 30. The structure saves material cost, and is stable and convenient to process and assemble. In the illustrated embodiment, one end of the fixing bolt 70 has a handle for facilitating finger rotation. The user is facilitated to disassemble and assemble the bottom adapter 30 and the top adapter 40 by hand without the aid of tools.

Figure 7 is a partially cross-sectional schematic view of a measurement mount of a magnetic resonance system. Referring to fig. 6 and 7, the bracket body 10 further includes a bearing 15 and a cover plate 12. The bearing 15 is provided on the rear support plate 14, and one end of the rotating shaft 20 is provided on the bearing 15. The cover plate 12 is circular and is disposed on a side of the front support plate 11 facing away from the rear support plate 14, and the cover plate 12 is recessed on a side facing the front support plate 11 and forms a circular rotation groove 121 with the rear support plate 14. The measuring stand also comprises a turn disc 13 and two turning handles 17. The rotary disk 13 is correspondingly disposed in the rotary groove 121 and is rotatable about its axis, and the other end of the rotary shaft 20 is coaxially fixed to the rotary disk 13. The turning handle 17 is provided to the turning disc 13 and extends in the first direction Z. Turning the handle 17 facilitates grasping and driving the turn disc 13, which in turn drives the rotation shaft 20 to rotate.

Referring to fig. 6 and 7, the holder body 10 is formed with a plurality of positioning holes 111 uniformly arranged about the axis of the rotating shaft 20, and the positioning holes 111 are formed in the front support plate 11 in the exemplary embodiment. One of the rotating handles 17 (see the upper rotating handle 17 in fig. 7) is movably inserted through the rotating disc 13 along the first direction Z, and the rotating handle 17 can also be inserted through one of the positioning holes 111 and prevent the rotating disc 13 from rotating. The measurement stand further includes an elastic member 18, and in the exemplary embodiment, the elastic member 18 is a compression spring, and the elastic member 18 is sleeved on the rotating handle 17 and applies elastic force to the rotating disk 13 and the rotating handle 17, respectively, and the elastic force can drive the rotating handle 17 to move towards the front support plate 11, so that the rotating handle 17 penetrating through the positioning hole 111 is held in the positioning hole 111. When the measuring stand is in use, the rotary handle 17 can be pulled out of the positioning hole 111 against the elastic force of the elastic member 18, and at this time, the rotary handle 17 can be operated to drive the rotary disk 13 to a desired position and align the rotary handle 17 with the positioning hole 111 at that position. After the hand is released, the rotary handle 17 automatically passes through the positioning hole 111 under the elastic force of the elastic member 18, and the position of the rotary disk 13 is locked, thereby locking the position of the probe array plate 50 on the rotary shaft 20. However, without being limited thereto, in other exemplary embodiments, the measuring carriage may also not comprise the elastic element 18.

The utility model also provides a measuring device of a magnetic resonance system, and referring to fig. 2 and 3, the measuring device comprises a probe array plate 50 and the measuring bracket. The probe array plate 50 is disposed on the rotating shaft 20, and a measurement center line of the probe array plate 50 coincides with an axis of the rotating shaft 20.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.

Claims (10)

1. A measurement support for a magnetic resonance system, comprising:

a holder body (10);

a rotating shaft (20) which is provided to the holder body (10) in a first direction (Z) and around the axis of which the rotating shaft (20) is rotatable, the rotating shaft (20) being used to mount a probe array plate and having the measurement center line of the probe array plate coincide with the axis of the rotating shaft (20); and

a pair of bottom adapters (30), each bottom adapter (30) being removably arranged at one end of the holder body (10) along a second direction (Y) perpendicular to the first direction (Z), a pair of bottom adapters (30) being aligned along a third direction (X) perpendicular to the first direction (Z) and the second direction (Y), respectively, a pair of bottom adapters (30) being correspondingly arranged in a pair of tracks in a central bore of the magnetic resonance system, a pair of tracks being capable of limiting the movement of the pair of bottom adapters (30) in the third direction (X) and of keeping the axis of the rotating shaft (20) coincident with the center line of the magnetic field.

2. The measurement mount of claim 1, further comprising:

a rotating disk (13) coaxially fixed to one end of the rotating shaft (20); and

at least one rotating handle (17), wherein the rotating handle (17) is arranged on the rotating disc (13) and extends along the first direction (Z), and a plurality of positioning holes (111) which are uniformly distributed around the axis of the rotating shaft (20) are formed in the bracket body (10); at least one rotating handle (17) is movably arranged in the first direction (Z) in a penetrating mode on the rotating disc (13), the rotating handle (17) can also be arranged in one positioning hole (111) of a plurality of positioning holes (111) in a penetrating mode and can prevent the rotating disc (13) from rotating relative to the support body (10).

3. A measurement stand of a magnetic resonance system according to claim 2, characterized in that the measurement stand further comprises at least one elastic member (18) which applies an elastic force to the rotary disk (13) and the rotary handle (17) movably inserted through the rotary disk (13), respectively, to hold the rotary handle (17) inserted through the positioning hole (111) in the positioning hole (111).

4. A measurement support of a magnetic resonance system as claimed in claim 2, characterized in that the support body (10) comprises:

-a front support plate (11) perpendicular to said first direction (Z);

a rear support plate (14) perpendicular to the first direction (Z) and arranged on the side of the front support plate (11) along the first direction (Z); and

a plurality of cross beams (16), each cross beam (16) extending along the first direction (Z) and fixedly connected to the front support plate (11) and the rear support plate (14) at two ends, respectively, and the bottom adapter (30) is fixed to the cross beams (16) by fixing bolts (70) penetrating through the cross beams (16) and screwed to the bottom adapter (30).

5. The measurement support of a magnetic resonance system as set forth in claim 4, characterized in that the support body (10) further includes: a bearing (15) provided to the rear support plate (14), one end of the rotating shaft (20) being provided to the bearing (15); a cover plate (12) which is circular and is arranged on the surface of the front support plate (11) back to the rear support plate (14), the cover plate (12) is concave on the surface facing the front support plate (11) and forms a circular rotary groove (121) with the rear support plate (14), and the rotary disc (13) is correspondingly arranged in the rotary groove (121) and can rotate around the axis of the rotary disc.

6. A measurement stand of a magnetic resonance system according to claim 1, characterized in that each of the bottom adapters (30) has at least two mounting positions on the stand body (10), the bottom adapters (30) being mountable in different mounting positions to be able to be correspondingly arranged on the tracks in the central holes of different shapes or different sizes and to keep the axis of the rotary shaft (20) coinciding with the centre line of the magnetic field.

7. A measurement stand of a magnetic resonance system according to claim 1, further comprising a top adapter (40) removably arranged at an end of the stand body (10) remote from the bottom adapter (30) in the second direction (Y), the top adapter (40) being adapted to abut against an inner surface of the central bore to limit movement of the stand body (10) in the second direction (Y) and in the first direction (Z).

8. The measurement support of a magnetic resonance system as set forth in claim 7, characterized in that the top adapter (40) includes:

an adapter body (41) removably provided to the holder body (10);

a trimming bolt (42) screwed to the adapter body (41) at an end remote from the bottom adapter (30) in the second direction (Y), the trimming bolt (42) having a rubber cap (43) at the end remote from the bottom adapter (30); and

and the operating ring (44) is coaxially sleeved and fixed on the fine adjustment bolt (42), and the circumferential outer surface of the operating ring (44) is provided with anti-skid lines.

9. A measurement stand of a magnetic resonance system according to claim 1, characterized in that the measurement stand comprises two pairs of the bottom adapters (30), the two pairs of bottom adapters (30) being arranged at positions of the stand body (10) near both ends in the first direction (Z), respectively.

10. A measurement apparatus for a magnetic resonance system, comprising:

a probe array plate (50); and

a measurement stand according to any one of claims 1 to 9, said probe array plate (50) being arranged on said rotatable shaft (20) and the measurement centerline of said probe array plate (50) coinciding with the axis of said rotatable shaft (20).

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