CN220491020U

CN220491020U - Transmitting coil device

Info

Publication number: CN220491020U
Application number: CN202321423008.XU
Authority: CN
Inventors: 郑慧; 侯贵堂; 蔡昕; 姜小平
Original assignee: Shanghai Kangda Colorful Medical Technology Co ltd
Current assignee: Shanghai Kangda Colorful Medical Technology Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-02-13
Anticipated expiration: 2033-06-06

Abstract

The utility model relates to the technical field of transmitting coils, in particular to a transmitting coil device which comprises a magnet, wherein the inner wall of the magnet is fixedly connected with a gradient coil, the inner wall of the gradient coil is fixedly connected with a transmitting coil, the inner wall of the transmitting coil is fixedly connected with a bed plate, the magnet, the gradient coil and the transmitting coil are of cylindrical structures, and the lengths of the gradient coil and the transmitting coil are the same as the length of the magnet. The magnetic field sensor comprises a magnet, wherein the inner wall of the magnet is fixedly connected with a gradient coil, the inner wall of the gradient coil is fixedly connected with a transmitting coil, the inner wall of the transmitting coil is fixedly connected with a bed plate, the magnet, the gradient coil and the transmitting coil are of cylindrical structures, and the lengths of the gradient coil and the transmitting coil are the same as the length of the magnet.

Description

Transmitting coil device

Technical Field

The utility model relates to the technical field of transmitting coils, in particular to a transmitting coil device.

Background

In a magnetic resonance imaging system, a transmitting coil is one of the key components, and is placed in a magnet and a gradient coil to act on a human body together with a B0 field generated by the magnet, a gradient field generated by the gradient coil and a radio frequency field (B1) generated by the transmitting coil. The radio frequency field generated by the transmitting coil can excite a human body to generate a resonance signal, and the resonance signal can be received by the transmitting coil or the receiving coil and transmitted to the system for system imaging through a receiving link.

The existing transmitting coil adopts a short tube scheme, and the short tube transmitting coil is arranged in the magnet and the gradient coil, so that the scheme has the following defects:

1) The radiation coil has weak supporting strength and can only support the radiation coil, and a bed plate supporting device is needed inside the magnet and the gradient coil, so that a set of bed plate supporting devices are needed to be additionally arranged;

2) The intensity of the additionally configured bed board supporting device is also weaker due to the limitation of the use and installation space, when the load of the bed board is larger, the supporting device of the bed board generates larger deformation, and further the supporting device is pressed to the transmitting coil, so that the transmitting coil also generates larger deformation, and the deformation can influence the working efficiency of the transmitting coil and the uniformity of a radio frequency field generated by the transmitting coil, thereby influencing the imaging quality of a system;

3) Since the transmitting coil is directly supported on the gradient coil, the gradient coil often generates high-frequency vibration during operation, and the vibration is directly transmitted to the transmitting coil, thereby affecting the imaging quality of the system.

Disclosure of Invention

The present utility model aims to solve or at least alleviate the problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a transmitting coil device, includes the magnet, the inner wall fixedly connected with gradient coil of magnet, and the inner wall fixedly connected with transmitting coil of gradient coil, transmitting coil's inner wall fixedly connected with bed board, magnet, gradient coil and transmitting coil are cylindrical structure, gradient coil and transmitting coil's length is the same with the length of magnet.

Optionally, the mounting groove has all been seted up to the both sides outer wall of magnet, and the inner wall of two mounting grooves joint respectively has backup pad one and backup pad two, backup pad one and backup pad two's structure is the same entirely.

Optionally, the outer walls of the tops of the first supporting plate and the second supporting plate are fixedly connected with an arc-shaped plate, and the arc-shaped plate is contacted with the transmitting coil. .

Optionally, the first support plate and the second support plate are both in L-shaped structures, and cavities are formed in the inner walls of the first support plate and the second support plate.

Optionally, the inner wall of cavity rotates and is connected with the screw rod, and the outer wall spiro union of screw rod has the thread bush.

Optionally, the outer wall of screw thread cover rotates and is connected with two connecting plates, the opening has all been seted up to the both sides inner wall of cavity.

Optionally, two equal sliding connection of open-ended inner wall has the stopper, two the one end of connecting plate rotates respectively to be connected on two stoppers, one side outer wall of backup pad one is seted up flutedly, and the inner wall rotation of recess is connected with the rolling disc, the transmission shaft fixed connection of rolling disc is on the screw rod, the both sides inner wall of mounting groove all seted up with stopper specification assorted spacing groove.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The transmitting coil has high structural strength, can be used for directly supporting the bed board, and can basically neglect the deformation of the transmitting coil when the load of the bed board is enough, so that the working efficiency of the transmitting coil and the uniformity of a radio frequency field of the transmitting coil are not influenced, and the imaging quality of a system is further improved;

(2) According to the utility model, the transmitting coil is directly supported by the magnet through the first transmitting coil supporting plate and the second transmitting coil supporting plate, so that the transmitting coil is prevented from being supported by the gradient coil, the influence of vibration generated during the working of the gradient coil on the transmitting coil is avoided, and the imaging quality of the system is further improved.

Drawings

FIG. 1 is a schematic side cross-sectional view of the present utility model;

FIG. 2 is a schematic elevational cross-sectional view of the present utility model;

fig. 3 is a schematic sectional view of the support plate of the present utility model.

In the figure: 1. a magnet; 2. a gradient coil; 3. a transmitting coil; 4. a bed board; 5. a first supporting plate; 6. a second supporting plate; 7. an arc-shaped plate; 8. a rotating disc; 9. a screw; 10. a thread sleeve; 11. a connecting plate; 12. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a transmitting coil device includes a magnet 1, wherein the inner wall of the magnet 1 is fixedly connected with a gradient coil 2, the inner wall of the gradient coil 2 is fixedly connected with a transmitting coil 3, the inner wall of the transmitting coil 3 is fixedly connected with a bed plate 4, the working efficiency of the transmitting coil 3 and the uniformity of a radio frequency field of the transmitting coil are not affected by fixing the bed plate 4 on the transmitting coil 3, the imaging quality of a system is improved, the magnet 1, the gradient coil 2 and the transmitting coil 3 are all in cylindrical structures, and the lengths of the gradient coil 2 and the transmitting coil 3 are the same as the length of the magnet 1.

Specifically, please refer to fig. 1 and 3, the mounting grooves are all provided on the outer walls of the two sides of the magnet 1, the first support plate 5 and the second support plate 6 are respectively clamped on the inner walls of the two mounting grooves, the structures of the first support plate 5 and the second support plate 6 are identical, the transmitting coil 3 is prevented from being supported by the gradient coil 2 through the arrangement of the first support plate 5 and the second support plate 6, the influence on the transmitting coil 3 caused by vibration generated during the operation of the gradient coil 2 is avoided, the imaging quality of the system is further improved, the arc plates 7 are fixedly connected on the outer walls of the tops of the first support plate 5 and the second support plate 6, and the arc plates 7 are in contact with the transmitting coil 3.

Specifically, please refer to fig. 3, backup pad one 5 and backup pad two 6 are L shape structure, backup pad one 5 and backup pad two 6's inner wall all is provided with the cavity, the inner wall of cavity rotates and is connected with screw rod 9, and screw rod 9's outer wall spiro union has thread bush 10, the outer wall rotation of thread bush 10 is connected with two connecting plates 11, the opening has all been seted up to the both sides inner wall of cavity, the equal sliding connection of two open-ended inner walls has stopper 12, the one end of two connecting plates 11 is rotated respectively and is connected on two stopper 12, the recess has been seted up to one side outer wall of backup pad one 5, and the inner wall rotation of recess is connected with rolling disc 8, the transmission shaft fixed connection of rolling disc 8 is on screw rod 9, the spacing groove with stopper 12 specification assorted is all seted up to the both sides inner wall of mounting groove, can be fixed on magnet 1 to backup pad one 5 through setting up two stopper 12 that can adjust on backup pad one 5 in the spacing groove, screw rod 9's rotation convenience direct drive thread bush 10 removes, thread bush 10 removes convenience and drives two stopper 12 through connecting plate 11.

Working principle: the bed board 4 is directly arranged on the transmitting coil 3, the structural strength of the transmitting coil 3 is high, when the load of the bed board 4 is large enough, the deformation of the bed board 4 is basically negligible, the working efficiency of the transmitting coil 3 and the uniformity of a radio frequency field of the transmitting coil are not affected, the first supporting plate 5 and the second supporting plate 6 are fixed on the magnet 1, the generating coil 3 can be directly supported through the arc-shaped plate 7, the first supporting plate 5 is firstly inserted into a mounting groove when the first supporting plate 5 is mounted, when the first supporting plate 5 is completely inserted into the mounting groove, the rotating disc 8 is rotated, the rotating disc 8 directly drives the screw 9 to rotate when the screw 9 rotates, the screw sleeve 10 is directly driven to move when the screw sleeve 10 is far away from the rotating disc 8, the two limiting blocks 12 can be directly pushed to stretch out through the connecting plate 11, and when the limiting blocks 12 are completely inserted into the limiting grooves, so that the first supporting plate 5 is fixed on the magnet 1.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A transmitting coil arrangement comprising a magnet (1), characterized in that: the inner wall fixedly connected with gradient coil (2) of magnet (1), and the inner wall fixedly connected with transmitting coil (3) of gradient coil (2), the inner wall fixedly connected with bed board (4) of transmitting coil (3), magnet (1), gradient coil (2) and transmitting coil (3) are cylindrical structure, the length of gradient coil (2) and transmitting coil (3) is the same with the length of magnet (1).

2. A transmitting coil arrangement according to claim 1, characterized in that: the magnet is characterized in that mounting grooves are formed in the outer walls of the two sides of the magnet (1), the first support plate (5) and the second support plate (6) are respectively clamped on the inner walls of the two mounting grooves, and the structures of the first support plate (5) and the second support plate (6) are identical.

3. A transmitting coil arrangement according to claim 2, characterized in that: the outer walls of the tops of the first supporting plate (5) and the second supporting plate (6) are fixedly connected with an arc-shaped plate (7), and the arc-shaped plate (7) is contacted with the transmitting coil (3).

4. A transmitting coil arrangement according to claim 3, characterized in that: the first support plate (5) and the second support plate (6) are of L-shaped structures, and cavities are formed in the inner walls of the first support plate (5) and the second support plate (6).

5. A transmitting coil arrangement according to claim 4, characterized in that: the inner wall of the cavity is rotationally connected with a screw rod (9), and the outer wall of the screw rod (9) is in threaded connection with a thread sleeve (10).

6. A transmitting coil arrangement according to claim 5, characterized in that: the outer wall of the thread bush (10) is rotationally connected with two connecting plates (11), and openings are formed in the inner walls of the two sides of the cavity.

7. A transmitting coil arrangement according to claim 6, characterized in that: two equal sliding connection of open-ended inner wall has stopper (12), two the one end of connecting plate (11) rotates respectively to be connected on two stopper (12), the recess is seted up to one side outer wall of backup pad one (5), and the inner wall rotation of recess is connected with rolling disc (8), the transmission shaft fixed connection of rolling disc (8) is on screw rod (9), the both sides inner wall of mounting groove all has seted up with stopper (12) specification assorted spacing groove.