CN210038137U - Head coil assembly of magnetic resonance imaging system and magnetic resonance imaging system - Google Patents
Head coil assembly of magnetic resonance imaging system and magnetic resonance imaging system Download PDFInfo
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- CN210038137U CN210038137U CN201920665825.3U CN201920665825U CN210038137U CN 210038137 U CN210038137 U CN 210038137U CN 201920665825 U CN201920665825 U CN 201920665825U CN 210038137 U CN210038137 U CN 210038137U
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Abstract
The utility model discloses a magnetic resonance imaging system head coil pack and magnetic resonance imaging system, this magnetic resonance imaging system head coil pack includes the base, the coil, regulator and coil brace, the regulator includes fixed part and rotation portion, the fixed part sets up on the base, rotation portion sets up inside the fixed part, coil brace one end and coil connection, the other end is connected with the part that the rotation portion is located the fixed part outside, rotation portion is configured to can be for the fixed part motion under coil brace's the drive, with the regulation of realizing different installation angle between coil and the base. The head coil assembly of the magnetic resonance imaging system and the magnetic resonance imaging system can adapt to people with different body types, the fitting performance of the head coil and the head of a user is guaranteed under various conditions, the signal to noise ratio can be improved, the scanning stability is guaranteed, scanning resetting and scanning artifacts are avoided, the imaging quality is effectively improved, and the comfort level of the user is improved.
Description
Technical Field
The utility model relates to a magnetic resonance imaging field especially relates to a magnetic resonance imaging system head coil pack and magnetic resonance imaging system.
Background
Magnetic Resonance Imaging (MRI) is a significant advance in medical Imaging following CT. MRI can directly make tomographic images of the transverse, sagittal, coronal, and various oblique planes without ionizing radiation, has no adverse effect on the body, and is increasingly used in the medical field.
The radio frequency coil is an important component of a magnetic resonance imaging system 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 head of the scanned object and improve the signal-to-noise ratio of the image, the head coil is widely used. However, traditional head coil snap-on is on the coil base, and head coil installation angle is fixed, can't carry out angle adjustment according to the people of different sizes, though can adapt to most crowds and use, but when the less people of size used, the coil receiving element can be kept away from to the head, causes the SNR to descend, influences scanning stability, produces scanning resetting and scanning artifact easily, seriously influences imaging quality. Therefore, the traditional head coil has the technical problems that the applicable object range is limited and the imaging quality is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a magnetic resonance imaging system head coil pack to it is limited to solve the applicable object scope that traditional head coil exists, influences the technical problem of formation of image quality.
Another object of the present invention is to provide a magnetic resonance imaging system, which can be applied to different subjects to improve the imaging quality.
To achieve the purpose, on one hand, the utility model adopts the following technical scheme:
the utility model provides a magnetic resonance imaging system head coil pack, includes base and coil, still includes regulator and coil carrier, and the regulator includes fixed part and rotation portion, and the fixed part setting is on the base, and rotation portion sets up inside the fixed part, and coil carrier one end is connected with the coil, and the other end is connected with the part that rotation portion is located the fixed part outside, and rotation portion is configured to can be under coil carrier's drive relative fixed part motion to realize the regulation of different installation angles between coil and the base.
In one embodiment, the fixing part comprises a fixing shaft sleeve, and the fixing shaft sleeve is connected with the base; the rotating part comprises a first moving part and an elastic piece which are accommodated in the fixed shaft sleeve, and a second moving part which is partially accommodated in the fixed shaft sleeve, one end of the elastic piece is abutted against the end part of the fixed shaft sleeve, the other end of the elastic piece is abutted against the first moving part, and the first moving part and the second moving part are connected in a meshing manner.
In one embodiment, the first moving portion and the second moving portion respectively comprise a connecting section and a coupling section which are connected with each other, the connecting section of the first moving portion is movably connected with the fixed shaft sleeve along the axial direction, the connecting section of the second moving portion partially extends to the outer side of the fixed shaft sleeve, the part of the connecting section of the second moving portion extending to the outer side of the fixed shaft sleeve is connected with the coil support, at least two convex teeth are arranged on the coupling section at intervals along the circumferential direction, and a clamping groove is formed between every two adjacent convex teeth.
In one embodiment, one of the inner wall of the fixed shaft sleeve and the connecting section of the first moving part is provided with a limiting strip along the axial direction, and the other one is provided with a limiting groove for accommodating the limiting strip along the axial direction.
In one embodiment, the convex teeth are provided with transition inclined planes, and at least two convex teeth are arranged at equal intervals along the circumferential direction.
In one embodiment, the adjuster further comprises a fastener, the fixed shaft sleeve is provided with a mounting hole, and the fastener penetrates through the mounting hole to be connected with the base.
In one embodiment, the first moving part and the second moving part are respectively provided with a threading hole for the cable to pass through.
In one embodiment, the resilient member is a spring.
In one embodiment, the coil support further comprises a driving element, and the driving element is connected with the coil support.
In another aspect, the present invention also provides a magnetic resonance imaging system, including the magnetic resonance imaging system head coil assembly of any one of the above.
The head coil assembly of the magnetic resonance imaging system comprises an adjuster and a coil support, wherein the adjuster comprises a fixing part and a rotating part, the fixing part is arranged on the base, the rotating part is arranged inside the fixing part, one end of the coil support is connected with the coil, the other end of the coil support is connected with the part, located on the outer side of the fixing part, of the rotating part, and the rotating part is configured to be capable of rotating relative to the fixing part under the driving of the coil support so as to realize the adjustment of different installation angles between the coil and the base. When the head coil assembly of the magnetic resonance imaging system is used, thrust is applied to the coil support, the rotating portion can move relative to the fixed portion under the driving of the coil support, and the coil connected with the coil support can move together, so that the adjustment of the installation angle between the coil and the base is realized. The installation angle between the coil of the magnetic resonance imaging system head coil assembly and the base can be adjusted, the magnetic resonance imaging system head coil assembly can adapt to people with different body types, the fitting performance of the head coil and the head of a user is guaranteed under various conditions, the signal to noise ratio can be improved, the scanning stability is ensured, the scanning resetting and the scanning artifacts are avoided, the imaging quality is effectively improved, and the comfort level of the user is improved.
The magnetic resonance imaging system using the head coil assembly of the magnetic resonance imaging system can be suitable for different objects, and the imaging quality is improved.
Drawings
Figure 1 is a schematic structural diagram of a head coil assembly of a magnetic resonance imaging system in one embodiment;
figure 2 is a schematic diagram of the internal connections of a head coil assembly of an embodiment of a magnetic resonance imaging system;
FIG. 3 is a schematic view showing a coupling structure of a base and a coil support in one embodiment;
FIG. 4 is an exploded view of the regulator coupled to the base in one embodiment;
FIG. 5 is a sectional view of the structure of the regulator in one embodiment;
FIG. 6 is a schematic diagram of a second motion segment in one embodiment;
figure 7 is a schematic diagram of the internal connections of a head coil assembly of another embodiment of a magnetic resonance imaging system;
FIG. 8 is a schematic diagram of an acupuncture head coil employing a head coil assembly of a magnetic resonance imaging system in one embodiment;
FIG. 9 is a schematic diagram illustrating the positioning of the acupuncture head coil for supine acupuncture according to one embodiment;
fig. 10 is a schematic diagram of the positioning of the acupuncture head coil for prone acupuncture in one embodiment.
In the figure:
10-base, 20-coil, 30-adjuster, 40-coil support, 50-plug, 60-cable;
301-rotating part, 302-fixed shaft sleeve, 303-first moving part, 304-elastic part, 305-second moving part, 306-connecting section, 307-shaft connecting section, 308-convex tooth, 309-limiting strip and 310-switching inclined plane;
3021-limit groove, 3022-mounting hole.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model discloses to the unable adjusting position's of head coil problem among the prior art, provided a head coil assembly who is applicable to magnetic resonance imaging system's adjustable installation angle. The head coil assembly comprises a base 10 and a coil 20 disposed on the base 10, wherein the coil 20 and the base 10 are connected by a pivot structure (an adjuster 30).
Referring to fig. 1 to 6, a head coil assembly of a magnetic resonance imaging system according to an embodiment includes a base 10, a coil 20, an adjuster 30, and a coil support 40. The adjuster 30 includes a fixed portion and a rotating portion 301, the fixed portion is disposed on the base 10, the rotating portion 301 is partially disposed inside the fixed portion, one end of the coil support 40 is connected to the coil 20, the other end of the coil support is connected to a portion of the rotating portion 301 located outside the fixed portion, and the rotating portion 301 is configured to be movable relative to the fixed portion under the driving of the coil support 40, so as to adjust different installation angles between the coil 20 and the base 10. It can be understood that, in the present invention, one end of the coil support 40 is connected to the coil 20, and the other end of the coil support 40 is connected to the portion of the rotating portion 301 outside the fixing portion, and the connection mode may be a fixed connection, a detachable connection, a hinge connection, a joggle connection, or other connection modes. The rotating portion 301 is driven to move relative to the fixed portion, which may be rotation in a circumferential direction or movement in a horizontal direction.
The head coil assembly of the magnetic resonance imaging system comprises an adjuster 30 and a coil support 40, the adjuster 30 comprises a fixing portion and a rotating portion 301, the fixing portion is arranged on the base 10, the rotating portion 301 is partially arranged inside the fixing portion, one end of the coil support 40 is fixedly connected with the coil 20, the other end of the coil support 40 is connected with a portion, located on the outer side of the fixing portion, of the rotating portion 301, and the rotating portion 301 is configured to be capable of moving relative to the fixing portion under the driving of the coil support 40 so as to achieve adjustment of different installation angles between the coil 20 and the base 10. When the head coil assembly of the magnetic resonance imaging system is used, thrust is applied to the coil support 40, part of the rotating part 301 moves in the circumferential direction relative to the fixed part under the driving of the coil support 10, and meanwhile, the other part of the rotating part 301 moves in the horizontal direction. When the rotating part 301 moves relative to the fixed part, the coil 20 connected to the coil support 40 rotates together, thereby achieving adjustment of the installation angle between the coil 20 and the base 10. The installation angle between the coil 20 and the base 10 of the head coil assembly of the magnetic resonance imaging system can be adjusted, the head coil assembly can adapt to people with different body types, the fitting performance of the head coil and the head of a user is guaranteed under various conditions, the signal to noise ratio can be improved, the scanning stability is ensured, scanning resetting and scanning artifacts are avoided, the imaging quality is effectively improved, and the comfort level of the user is improved.
In one embodiment, the fixing portion includes a fixing sleeve 302, the fixing sleeve 302 is connected to the base 10, and the fixing sleeve 302 may be configured as a blind sleeve structure or a sleeve structure with two open ends. The rotating part 301 includes a first moving part 303 and an elastic member 304 accommodated in a fixed sleeve 302, and a second moving part 305 partially accommodated in the fixed sleeve, the first moving part 303 and the second moving part 305 are engaged and connected, one end of the elastic member 304 abuts against an end of the fixed sleeve 302, and the other end abuts against the first moving part 303, and the elastic member 304 may be, but is not limited to, a spring.
Specifically, the first moving portion 303 and the second moving portion 305 each include a connecting section 306 and a coupling section 307 that are connected to each other, the connecting section 306 of the first moving portion 303 is movably connected to the fixed shaft sleeve 302 along the axial direction, the connecting section 306 of the second moving portion 305 partially extends to the outside of the fixed shaft sleeve 302, the portion of the connecting section 306 of the second moving portion 305 extending to the outside of the fixed shaft sleeve 302 is connected to the coil support 40, at least two convex teeth 308 are circumferentially arranged on the coupling section 307 at intervals, and a clamping groove is formed between adjacent convex teeth 308. Further, the coupling section 307 of the first moving part 303 and the coupling section 307 of the second moving part 305 are engaged and connected by the convex teeth 308 and the locking grooves.
Furthermore, the connecting section 306 is provided with a limiting strip 309 along the axial direction, the inner wall of the fixed shaft sleeve 302 is provided with a limiting groove 3021 along the axial direction for accommodating the limiting strip 309, and the connecting section 306 and the fixed shaft sleeve 302 are clamped with each other through the limiting strip 309 and the limiting groove 3021, so that the first moving part 303 can move in the fixed shaft sleeve 302 along the axial direction and can be relatively fixed with the fixed shaft sleeve 302 along the circumferential direction, and the first moving part 303 is ensured not to rotate in the fixed shaft sleeve 302. In other embodiments, the first moving portion 303 may be provided with a limiting groove 3021, and the inner wall of the fixed shaft sleeve 302 is provided with a limiting strip 309, which is not limited in this embodiment.
Specifically, the second moving part 305 is fixedly connected to the coil support 40. In this embodiment, the first moving part 303 and the second moving part 305 have the same structure, the connecting section 306 of the second moving part 305 is also provided with a limiting strip 309, and accordingly, the coil support 40 is provided with a connecting hole, and a limiting opening is formed on a hole wall of the connecting hole. When the second moving part 305 is assembled with the coil support 40, the part of the connecting section 306 of the second moving part 305 extending to the outside of the fixing shaft sleeve 302 is inserted into the connecting hole, so that the limiting strip 309 is clamped with the limiting opening, and then the second moving part 305 is fixed on the coil support 40 by means of fastening, bonding, welding and the like. In this embodiment, in the process of assembling the second moving part 305 and the coil support 40, the connecting section 306 of the second moving part 305 and the coil support 40 are circumferentially and relatively fixed by the limiting strip 309 and the limiting opening, so that the second moving part 305 cannot rotate in the connecting hole and can rotate along with the coil support 40, and thus the subsequent fixing operations such as fastening, bonding, welding and the like of the second moving part 305 and the coil support 40 can be facilitated, and the assembly efficiency can be improved.
In the above embodiment, the connecting section 306 of the second moving part 305 is provided with the limiting strip 309, and the hole wall of the connecting hole of the coil support 40 is provided with the limiting opening, in other embodiments, the connecting section 306 of the second moving part 305 may be provided with the limiting opening, and the hole wall of the connecting hole of the coil support 40 is provided with the limiting strip 309, which is not limited in this embodiment. In addition, it should be further noted that, in the above embodiment, the connecting section 306 of the second moving part 305 is provided with the limiting strip 309, on one hand, the limiting strip 309 and the limiting opening are circumferentially fixed to facilitate the assembly of the second moving part 305 and the coil support 40; on the other hand, the first moving part 303 and the second moving part 305 have the same structure, which is beneficial to saving the mold opening cost of the part. However, in other embodiments, the second moving portion 305 may not be provided with the limiting strip 309, and the second moving portion 305 may be directly and fixedly connected to the coil support 40 by fastening, welding, clipping, pivoting, and the like, which is not limited in this embodiment.
In one embodiment, the adjuster 30 further includes a fastening member (e.g., a screw, a bolt, etc.), the fixing sleeve 302 has a mounting hole 3022, and correspondingly, the base 10 has a threaded hole, and the fastening member passes through the mounting hole 302 and is locked to the base 10. In this embodiment, the fixed shaft sleeve 302 is locked and fixed on the base 10 through the fastener, on the one hand, the connection between the fixed shaft sleeve 302 and the base 10 can be ensured to be stable and reliable, and on the other hand, when the component needs to be maintained, the maintenance operation can be performed by taking off the fastener, which is convenient for the equipment maintenance. Of course, in other embodiments, the fixing shaft sleeve 302 may also be connected to the base 10 by welding, clamping, or even integrally forming, and the embodiment is not limited in particular.
In one embodiment, tooth 308 has transition ramp 310. Specifically, the adapting inclined surface 310 may be an arc inclined surface or a straight inclined surface, and the adapting inclined surface 310 is disposed on the surface of the protruding tooth 308, so that the first moving portion 303 and the second moving portion 305 are prevented from being rotationally locked, and smooth rotation between the first moving portion 303 and the second moving portion 305 is ensured.
Further, in one embodiment, at least two of the teeth 308 are equally spaced circumferentially or radially apart. In this embodiment, at least two convex teeth 308 are arranged at equal intervals along the circumferential direction, so that the coil 20 can be ensured to rotate at the same angle relative to the base 10 at each time, gear adjustment of different positions of the coil 20 can be realized, the installation angle between the coil 20 and the base 10 can be conveniently determined, and the use by a user is facilitated. Specifically, the number of the convex teeth 308 may be specifically set according to the required installation angle adjustment accuracy, as long as it is ensured that no less than two convex teeth 308 are provided on the coupling section 307 of the first moving portion 303 and the coupling section 307 of the second moving portion 302, and the number of the convex teeth 308 provided on the coupling section 307 of the first moving portion 303 and the coupling section 307 of the second moving portion 302 is the same. In the present embodiment, the adjuster 30 adjusts the gear positions of the coils 20 at different installation positions through at least two convex teeth 308 disposed on the first moving portion 303 and the second moving portion 305, and in other embodiments, the adjuster 30 may also be a gear position adjuster, and the above-mentioned embodiment is not limited in particular.
The fixed sleeve 302 of the adjuster 30 is fixed to the base 10, the first moving portion 303 is fixed to the fixed sleeve 302 in the circumferential direction, and the first moving portion 303 is movable in the fixed sleeve 302 in the axial direction. Meanwhile, the second moving portion 305 is fixedly connected with the coil support 40, and the second moving portion 305 can rotate along the circumferential direction relative to the fixed shaft sleeve 302 under the driving of the coil support 40, so that the adjustment of the installation angle between the coil 20 and the base 10 is realized, and the adjustment of different gears of a plurality of installation angles can be realized. Specifically, when a thrust is applied to the coil support 40, the second moving portion 305 generates a rotation tendency in the thrust direction under the driving of the coil support 40, at this time, the tooth vertex of the tooth 308 on the second moving portion 305 presses the adapting inclined surface 310 of the tooth 308 on the first moving portion 303 in the thrust direction, and rotates along the adapting inclined surface 310 of the tooth 308 on the first moving portion 303 in the thrust direction toward the tooth vertex of the tooth 308 on the first moving portion 303, after the tooth 308 on the first moving portion 303 is pressed by the tooth 308 on the second moving portion 305, the first moving portion 303 compresses the elastic member 304, and the first moving portion 303 moves axially toward the inside of the fixed sleeve 302 as a whole; when the peak of the convex tooth 308 on the second moving part 305 rotates past the peak of the convex tooth 308 on the first moving part 303, the convex tooth 308 on the second moving part 305 moves along the adapting inclined plane 310 of the convex tooth 308 on the first moving part 303 to the slot on the first moving part 303, and at the same time, the peak of the convex tooth 308 on the first moving part 303 moves along the adapting inclined plane 310 of the convex tooth 308 on the second moving part 305 to the slot on the second moving part 305, at this time, the convex tooth 308 on the second moving part 305 no longer presses against the convex tooth 308 on the first moving part 303, the elastic member 304 rebounds, the first moving part 303 is ejected out along the axial direction, the convex tooth 308 on the first moving part 303 is inserted into the slot on the second moving part 305, the slot on the first moving part 303 catches the convex tooth 308 on the second moving part 305, so that the first moving part 303 and the second moving part 305 are quickly clamped, and one angle adjustment operation is completed, the coil 20 is rotated with the coil support 40 to a desired angle. When different installation angles are needed, the operations are repeated to adjust different gears, and the operation of adjusting the installation angles of the coil 20 and the base 10 is simple and convenient.
In one embodiment, the first moving portion 303 and the second moving portion 305 are both provided with threading holes for the cables 60 (as shown in fig. 7) to pass through. Further, in an embodiment, if the fixed shaft sleeve 302 is a blind hole sleeve structure, the fixed shaft sleeve 302 is also provided with a threading hole, and the threading hole (or end opening) on the fixed shaft sleeve 302, the threading hole on the first moving portion 303 and the threading hole on the second moving portion 305 are sequentially communicated, so that the cable 60 can pass through the inside of the regulator 30, and the wiring operation is facilitated. Specifically, the coil 20 needs to be connected to both the scanning signal transmission and the power supply through a cable, wherein a preamplifier (AMP) is disposed in the base 10, and a wave trap is disposed in the coil support 40. In this embodiment, the preamplifier and the wave trap are connected by a cable 60 as shown in fig. 7, and when the coil support 40 rotates relative to the base 10, the cable 60 also has a certain torsion to adapt to the rotation adjustment range, and the combination of good mechanical rotation and continuous electrical connection can be satisfied by designing the threading hole. In this embodiment, the cable 60 in fig. 7 is only a small section of the signal transmission cable, which forms part of the cable for communicating the entire coil assembly with the socket of the patient's bed.
In one embodiment, the head coil assembly of the magnetic resonance imaging system further comprises a driving element (not shown), which is connected to the coil support 40. Specifically, the driving element is used for providing the coil support 40 with rotating power, so that the installation angle of the coil 20 can be automatically adjusted, and the adjustment efficiency and the adjustment precision of the installation angle of the coil 20 can be improved. Further, the driving element may be, but is not limited to, a stepping motor.
In one embodiment, the magnetic resonance imaging system head coil assembly can be applied to an acupuncture head coil for skull scanning, and the following description will be made with reference to fig. 8 to 10 to describe the positioning adjustment process of different body positions during scanning examination by using the acupuncture head coil of the magnetic resonance imaging system head coil assembly. As shown in fig. 8, the acupuncture head coil includes a base 10, a coil 20, a coil support 40 and a plug 50, the coil support 40 and the base 10 are rotatably connected by the adjuster 30 in the above embodiment, the coil support 40 is fixedly connected with the coil 20, and the plug 50 is electrically connected with the coil 20.
Specifically, the positioning process of the patient supine acupuncture is regulated as follows: first, the coil 20 (with the head rest installed) and the shoulder rest are placed on the examination bed; thereafter, the plug 50 is inserted into a socket on the examination bed; then, the left and right binding bands of the acupuncture head coil are loosened, the middle flexible body of the coil 20 is opened for a certain angle (certainly, the flexible body of the coil 20 cannot be opened too much, otherwise, the internal structure of the coil 20 may be damaged), so that the patient lies on the back, and the head of the patient is moved into the coil 20; and finally, pushing the coil support 40, driving the coil 20 to rotate by the coil support 40, adjusting the installation angle of the coil 20, adjusting the coil 20 to the installation angle suitable for scanning, and tightening the binding band to tighten the coil 20. It should be noted that, in the process of moving the head of the patient into the coil 20, the installation angle of the coil 20 can be adjusted according to the height, body position, etc. of the patient, so that the head of the patient can be quickly and accurately moved into the coil 20.
Further, the positioning process of the acupuncture and moxibustion bending over the stomach of the patient is adjusted as follows: firstly, placing a lower jaw supporting pad on an examination bed, enabling a patient to lie on the stomach, enabling cheeks on two sides of a lower jaw to lean against a V-shaped groove of the lower jaw supporting pad, and enabling the face to be exposed out of the end face of the lower jaw supporting pad; then, the head rest is taken out of the coil 20, and the coil 20 is taken out of the shoulder rest, and the band is released; then, the coil 20 is worn on the head of the patient, the coil support 40 is pushed, the coil support 40 drives the coil 20 to rotate, the installation angle of the coil 20 is adjusted, and after the coil 20 is adjusted to the installation angle suitable for scanning, the coil 20 is tightened by tightening the binding band; finally, the scanning examination can be performed by inserting the plug 50 into a socket on the examination table.
In another aspect, the present invention also provides a magnetic resonance imaging system, including the magnetic resonance imaging system head coil assembly of any one of the above. The magnetic resonance imaging system of the embodiment applies the head coil assembly of the magnetic resonance imaging system, can be suitable for different objects, and improves the imaging quality.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a magnetic resonance imaging system head coil pack, includes base (10) and coil (20), its characterized in that still includes regulator (30) and coil support (40), regulator (30) include fixed part and rotation portion (301), the fixed part sets up on base (10), rotation portion (301) part sets up inside the fixed part, coil support (40) one end with coil (20) are connected, the other end with rotation portion (301) are located the part in the fixed part outside is connected, rotation portion (301) are configured to can under coil support's the drive for the fixed part motion, in order to realize coil (20) with the regulation of different installation angle between base (10).
2. The magnetic resonance imaging system head coil assembly of claim 1, wherein the fixed portion includes a fixed boss (302), the fixed boss (302) being connected with the base (10); the rotating part (301) comprises a first moving part (303) and an elastic piece (304) which are accommodated in the fixed shaft sleeve (302), and a second moving part (305) which is partly accommodated in the fixed shaft sleeve (302), one end of the elastic piece (304) is abutted with the end part of the fixed shaft sleeve (302), the other end of the elastic piece is abutted with the first moving part (303), and the first moving part (303) and the second moving part (305) are connected in a meshing manner.
3. The magnetic resonance imaging system head coil assembly according to claim 2, wherein the first moving portion (303) and the second moving portion (305) each include a connecting section (306) and a coupling section (307) connected to each other, the connecting section (306) of the first moving portion (303) is movably connected to the fixed shaft sleeve (302) in an axial direction, the connecting section (306) of the second moving portion (305) partially extends to the outside of the fixed shaft sleeve (302), a portion of the connecting section (306) of the second moving portion (305) extending to the outside of the fixed shaft sleeve (302) is connected to the coil support (40), at least two convex teeth (308) are circumferentially spaced on the coupling section (307), and a clamping groove is formed between the adjacent convex teeth (308).
4. The magnetic resonance imaging system head coil assembly as set forth in claim 3, wherein one of the inner wall of the fixed sleeve (302) and the connecting section (306) of the first moving part (303) is provided with a limit strip (309) along the axial direction, and the other one is provided with a limit groove (3021) along the axial direction for accommodating the limit strip (309).
5. The magnetic resonance imaging system head coil assembly as set forth in claim 3, wherein the teeth (308) have transition ramps (310), at least two of the teeth (308) being circumferentially equally spaced.
6. The MRI system head coil assembly as claimed in claim 3, wherein the adjuster (30) further comprises a fastener, the fixed collar (302) defining a mounting hole (3022), the fastener passing through the mounting hole (3022) to couple with the base (10).
7. The magnetic resonance imaging system head coil assembly as set forth in claim 3, wherein the first moving portion (303) and the second moving portion (305) are each provided with a threading hole for a cable (60) to pass through.
8. The magnetic resonance imaging system head coil assembly as set forth in claim 2, wherein the resilient member (304) is a spring.
9. The magnetic resonance imaging system head coil assembly of claim 1, further comprising a drive element connected with the coil support (40).
10. A magnetic resonance imaging system comprising a magnetic resonance imaging system head coil assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920665825.3U CN210038137U (en) | 2019-05-10 | 2019-05-10 | Head coil assembly of magnetic resonance imaging system and magnetic resonance imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920665825.3U CN210038137U (en) | 2019-05-10 | 2019-05-10 | Head coil assembly of magnetic resonance imaging system and magnetic resonance imaging system |
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| CN210038137U true CN210038137U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353380A (en) * | 2020-10-14 | 2021-02-12 | 上海联影医疗科技股份有限公司 | Coil positioning structure for animal scanning and magnetic resonance animal scanning equipment |
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2019
- 2019-05-10 CN CN201920665825.3U patent/CN210038137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353380A (en) * | 2020-10-14 | 2021-02-12 | 上海联影医疗科技股份有限公司 | Coil positioning structure for animal scanning and magnetic resonance animal scanning equipment |
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Address after: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |