Nuclear magnetic resonance integrated flexible head coil structure

Abstract

The utility model relates to the technical field of nuclear magnetic resonance, in particular to a nuclear magnetic resonance integrated flexible head coil structure. An integrated flexible head coil structure comprises a base assembly, a face cover assembly, a head cover assembly and a head top support assembly, and is characterized in that the face cover assembly and the head cover assembly are arranged above the base assembly, the head top support assembly is arranged above the head cover assembly, and the head top support assembly is connected with the base assembly. Compared with the prior art, the nuclear magnetic resonance integrated flexible head coil structure has the advantages that the soft coil and the hard coil are combined, and the position of the head coil can be flexibly adjusted according to different head forms and face forms of each detected individual, so that the position of the head coil and the face coil is closer to the detected position, and the effect of clearer and more accurate nuclear magnetic imaging is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of nuclear magnetic resonance, and specifically relates to a nuclear magnetic resonance integrated flexible head coil structure. BACKGROUND

[0002] Magnetic resonance imaging is an advanced human non-destructive imaging technology, which is widely used in the diagnosis of diseases in various parts of the human body.

[0003] With the development of medicine, the requirement for accurate diagnosis of head diseases in clinical diagnosis of head coils is getting higher and higher, and clearer and more accurate head imaging is needed to detect small lesions, vascular abnormalities, etc. At the same time, in some examinations, such as intracranial and extracranial vascular wall imaging, the head and neck need to be detected at the same time, and the image needs to have high resolution.

[0004] The progress of magnet technology has continuously improved the magnetic field strength, making it possible for head coils to receive weaker and more delicate signals. The development of multi-channel technology has also promoted the development of head coils in the direction of multi-channel and high channel number to improve the speed and quality of imaging. The use of flexible coils has also expanded the application of soft coils. Flexible coils can adapt to the different body requirements of each individual, making nuclear magnetic imaging clearer and more accurate.

[0005] The current multi-functional flexible coil has been used in the joints of the human body, shoulders, arms, legs and feet. There is no flexible coil product used in the head coil in the application market. Most of the existing head coils on the market are split type with upper and lower hard shells, or hinge integrated type with upper and lower hard shells. The measured space is fixed and cannot be adjusted to the distance between the coil and the head of different measured individuals. SUMMARY

[0006] The utility model discloses to overcome the technical insufficient that the hard coil test space cannot be adjusted in real time, and provides a nuclear magnetic resonance integrated flexible head coil structure, which combines soft and hard coils, can adjust the position of the head coil according to the different head shapes and face shapes of each detected individual, make the head and face coil position closer to the measured position, and achieve the effect of clearer and more accurate nuclear magnetic imaging.

[0007] To achieve the above purpose, a nuclear magnetic resonance integrated flexible head coil structure is designed, which comprises a base assembly, a face mask assembly, a head cover assembly and a head top support assembly, characterized in that: the upper part of the base assembly is provided with the face mask assembly and the head cover assembly, the upper part of the head cover assembly is provided with the head top support assembly, and the head top support assembly is connected with the base assembly.

[0008] The base assembly comprises a base body, a head soft strap, a rotating support rod, a rotating shaft damper assembly, the middle part of the base body is provided with an arc-shaped groove for placing the head, the outer side of the arc-shaped groove is provided with a U-shaped groove for placing the face mask assembly; the upper part of the left and right sides of the base body is respectively provided with a groove for placing the rotating support rod, the groove is provided with the rotating support rod, the upper end of the rotating support rod is connected with the overhead support bracket assembly, and the lower end of the rotating support rod is connected with the rotating shaft damper assembly.

[0009] The rotating shaft damper assembly comprises a rotating shaft damper base and a rotating shaft damper, one end of the rotating shaft damper is connected to the inside of the left and right sides of the base body through the rotating shaft damper base, the other end of the rotating shaft damper is connected to the lower part of the rotating support rod, and the outer side of the left and right sides of the base body is respectively provided with a coil integral carrying double-sided handle.

[0010] The outer side of the rear part of the arc-shaped groove is provided with the head soft strap, and the head soft strap is accommodated and bound on the base body through the ring buckle at the two ends of the base body.

[0011] The face mask assembly comprises a face mask soft coil made by using a soft foam heat pressing process or a soft foam made by a sewing process and a bulge, the face mask soft coil has a U-shaped structure in cross section of the face, and the face mask soft coil is provided with hollow positions of the eyes and the nose; the U-shaped opening of the face mask soft coil is located in the U-shaped groove of the base body; the left and right inner sides of the U-shaped opening of the face mask soft coil are respectively provided with the bulge.

[0012] The head cover assembly comprises a head cover hard shell coil, a front handle or a spectacle frame assembly, the rear part of the face mask soft coil is connected with the head cover hard shell coil, the top front part of the head cover hard shell coil is connected with the front handle or the spectacle frame assembly, the top rear part of the head cover hard shell coil is connected with the rear handle, and the left and right sides of the head cover hard shell coil are respectively connected with the overhead support bracket assembly.

[0013] The overhead support bracket assembly comprises an overhead support bracket upper shell, an overhead support bracket lower shell and a lifting connection assembly, the outer side of the overhead support bracket upper shell is connected with the overhead support bracket lower shell, and the overhead support bracket upper shell and the overhead support bracket lower shell have a U-shaped structure, the left and right ends of the U-shaped opening of the overhead support bracket lower shell are respectively connected with the upper parts of the rotating supports on the left and right sides of the base body through the lifting connection assembly.

[0014] The lifting connection assembly comprises a lifting rack and a lifting rotary damping gear assembly, the left and right sides of the inside of the overhead support bracket lower shell are respectively connected with the lifting rack, and the lifting rack is meshingly connected with the lifting rotary damping gear assembly.

[0015] The lifting and rotating damping gear assembly comprises a damping gear, a damping gear shaft and a damping gear support; the damping gear and the gear shaft are in an integral structure, the damping gear and the gear shaft are connected with the damping gear support, and the damping gear support is fixedly connected with the head cover hard shell coil.

[0016] The lifting connecting assembly can be a gear and a rack meshing stepless lifting structure or a positioning rod and a positioning hole cooperation type step lifting structure.

[0017] Compared with the prior art, the utility model provides a nuclear magnetic resonance integrated flexible head coil structure, adopts soft and hard coil combination, can adjust the head coil position adaptation of each detected individual different head type and face type, makes the head and face coil position and measured position closer, reaches the effect that nuclear magnetic imaging is clearer and more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model.

[0019] Figure 2 It is whole structure explosion schematic diagram of the utility model.

[0020] Figure 3 It is head cover assembly rotation closed state schematic diagram of the utility model.

[0021] Figure 4 It is head cover assembly rotation open state schematic diagram of the utility model.

[0022] Figure 5 It is head cover assembly non-lifting state schematic diagram of the utility model.

[0023] Figure 6 It is head cover assembly ascending state schematic diagram of the utility model.

[0024] Figure 7 It is face cover soft coil and head cover hard shell coil structure schematic diagram.

[0025] Figure 8 It is face cover assembly internal soft coil bulge structure schematic diagram.

[0026] Figure 9 It is base internal head soft binding belt structure schematic diagram.

[0027] Figure 10 , Figure 11 It is head cover assembly front handle and rear handle structure schematic diagram.

[0028] Referring to Figures 1 to 2 、 Figures 7 to 11, 1 is a base assembly, 1-1 is a base body, 1-2 is an arc-shaped groove, 1-3 is a U-shaped groove, 1-4 is a rotating support rod, 1-5 is a rotating shaft damper, 1-6 is a rotating shaft damper base, 1-7 is a coil overall carrying double-sided handle, 1-8 is a head soft binding belt, 2 is a face mask assembly, 2-1 is a face mask soft coil, 2-2 is a bulge, 3 is a head cover assembly, 3-1 is a head cover hard shell coil, 3-2 is a front handle or a spectacle frame assembly, 3-3 is a rear handle, 4 is a head top support assembly, 4-1 is a head top support upper shell, 4-2 is a head top support lower shell, 4-3 is a lifting rack, 4-4 is a lifting rotating damping gear assembly, 4-4-1 is a damping gear, and 4-4-2 is a damping gear support. DETAILED DESCRIPTION

[0029] The utility model will be further explained according to the drawings.

[0030] As Figures 1 to 11 The upper portion of the base assembly 1 is provided with the face mask assembly 2 and the head cover assembly 3, and the upper portion of the head cover assembly 3 is provided with the head top support assembly 4, which is connected with the base assembly 1.

[0031] The base assembly 1 comprises a base body, a head soft binding belt, a rotating support rod and a rotating shaft damper assembly. The middle portion of the base body 1-1 is provided with an arc-shaped groove 1-2 for placing the head. The outer side of the arc-shaped groove 1-2 is provided with a U-shaped groove 1-3 for placing the face mask assembly 2. The upper portions of the left and right sides of the base body 1-1 are respectively provided with grooves 1-4-1 for placing the rotating support rods. The grooves 1-4-1 are provided with the rotating support rods 1-4. The upper ends of the rotating support rods 1-4 are connected with the head top support assembly 4, and the lower ends of the rotating support rods 1-4 are connected with the rotating shaft damper assembly.

[0032] The rotating shaft damper assembly comprises a rotating shaft damper base and a rotating shaft damper. One end of the rotating shaft damper 1-5 is connected to the inside of the left and right sides of the base body 1-1 through the rotating shaft damper base 1-6. The other end of the rotating shaft damper 1-5 is connected to the lower portion of the rotating support rod 1-4. The outer sides of the left and right sides of the base body 1-1 are respectively provided with coil overall carrying double-sided handles 1-7. The rotating support rod 1-4 serves as the main support when the head cover assembly 3 rotates.

[0033] The head soft binding belt 1-8 is arranged on the outer side of the rear portion of the arc-shaped groove 1-2. The head soft binding belt 1-8 is accommodated and restrained on the base body 1-1 through the ring buckles at the two ends of the base body 1-1. When in use, the ring buckle at one end of the base body 1-1 is loosened first. After the position of the head is fixed, the ring buckle is buckled to restrain the head.

[0034] The face mask assembly 2 comprises a face mask soft coil made by using a soft foam heat pressing process or a soft foam made by a sewing process, the face mask soft coil 2-1 is in a U-shaped structure in cross section of the face, and the face mask soft coil 2-1 is provided with hollow positions of the eyes and the nose; the U-shaped opening of the face mask soft coil 2-1 is located in the U-shaped groove 1-3 of the base body 1-1; the left and right inner sides of the U-shaped opening of the face mask soft coil 2-1 are respectively provided with a bump 2-2, the bump 2-2 can be in contact with the auricle of the human body, and the head of the person is appropriately stabilized during the test.

[0035] The head cover assembly 3 comprises a head cover hard shell coil, a front handle or a frame assembly, the rear part of the face mask soft coil 2-1 is connected with the head cover hard shell coil 3-1, the top front part of the head cover hard shell coil 3-1 is connected with the front handle or the frame assembly 3-2 (the assembly can be selected when the external mirror assembly is applied), the top rear part of the head cover hard shell coil 3-1 is connected with the rear handle 3-3, and the left and right sides of the head cover hard shell coil 3-1 are respectively connected with the head top support assembly 4.

[0036] The head top support assembly 4 comprises a head top support upper shell, a head top support lower shell and a lifting connection assembly, the outer side of the head top support upper shell 4-1 is connected with the head top support lower shell 4-2, and the head top support upper shell 4-1 and the head top support lower shell 4-2 are in a U-shaped structure, the left and right ends of the U-shaped opening of the head top support lower shell 4-2 are respectively connected with the upper parts of the rotating supports 1-4 on the left and right sides of the base 1 through the lifting connection assembly.

[0037] The lifting connection assembly comprises a lifting rack and a lifting rotary damping gear assembly, the left and right sides of the inside of the head top support lower shell 4-2 are respectively connected with the lifting rack 4-3, and the lifting rack 4-3 is engaged with the lifting rotary damping gear assembly 4-4.

[0038] The lifting rotary damping gear assembly 4-4 comprises a damping gear, a gear shaft and a damping gear support, the damping gear 4-4-1 and the gear shaft are in an integral structure, the damping gear 4-4-1 and the gear shaft are connected with the damping gear support 4-4-2, and the damping gear support 4-4-2 is fixedly connected with the head cover hard shell coil 3-1.

[0039] The lifting connection assembly comprises a gear rack engagement stepless lifting adjustment mode or a positioning rod and positioning hole cooperation mode for stepwise lifting adjustment.

[0040] The magnetic resonance head coil mainly comprises a base assembly 1, a face mask assembly 2, a head cover assembly 3 and a head top support assembly 4.

[0041] The head cover hard shell coil 3-1 of the head cover assembly 3 and the face mask soft coil 2-1 of the face mask assembly 2 are designed in a soft and hard combination, so that the face mask soft coil 2-1 can be flexibly and adaptively adjusted according to the face shape distance of different personnel, especially for the fat face type, which is different from the conventional head coil structure with a fixed internal space of the upper and lower split hard shells.

[0042] The bulges 2-2 are designed at the ear positions on both sides of the face mask soft coil, and are made of a skin-friendly, environmentally-friendly and soft material, so that the bulges can be in moderate contact with the auricles of the personnel, and can appropriately limit and remind the patient from unnecessary movement of the head during the test process, so as to avoid poor quality imaging caused by the movement of the head.

[0043] The soft body silicone or fabric of the head soft band 1-8 is assembled at the rear edge of the base body 1-1, and is designed in a hidden mode, so that the band can be directly bound at the edge of the base in a non-use time, and can be adjusted in different lengths and locked and fixed according to the actual head outline length during use.

[0044] The base assembly 1 and the head cover assembly 3 are connected through a rotating shaft damper 1-5, the head cover assembly is swung according to the indication position of the rear handle mark of the head cover by one hand, so that the coils of the face mask assembly 2 and the head cover assembly 3 can be rotated and suspended at any position in the sagittal plane, the rotating damping force is appropriate, the service life of the damper reaches 20,000 times, and the operation is simple and labor-saving.

[0045] The head cover assembly 3 and the head top support assembly 4 are connected through the meshing of the rotating damping gear and the rack, the head cover assembly is lifted or pressed according to the indication position of the front and rear handle marks of the head cover by two hands, the meshing of the lifting rotating damping gear 4-4 and the rack 4-3 in the head top support assembly 4 is used to adjust the lifting design method in the travel in the coronal plane, and the suspension motion is not excluded, the coils and the measured parts are closer, the imaging is clearer, and the service life of the damper reaches 20,000 times.

[0046] If the image exhibits problems such as low signal-to-noise ratio, low resolution, or uneven image quality, the distance between the rigid RF antenna assembly at the top of the head and the flexible RF antenna assembly at the face mask and the human body can be further adjusted. The fit between the flexible RF antenna assembly and the measured position can be flexibly adjusted until satisfactory image quality is obtained.

[0047] The operation process of this utility model is as follows:

[0048] like Figure 4 As shown, the face mask assembly 2, head mask assembly and top head support assembly 4 are opened first. The opening is achieved by the rotating shaft damper assembly.

[0049] The subject's head is placed in the arc-shaped groove 1-2 of the base 1, and the head is fixed by the soft head strap 1-8 to prevent head displacement from affecting the MRI results.

[0050] like Figure 3 As shown, the face mask assembly 2, head mask assembly and head support assembly 4 are closed by rotating shaft damper assembly, and the face mask assembly 2 and head mask assembly are adjusted to the appropriate position by lifting connector.

[0051] Perform MRI;

[0052] After imaging is completed, the face mask assembly 2 and the head mask assembly are raised using the lifting connector, as follows: Figure 5 , Figure 6 As shown; then the face mask assembly 2, head mask assembly and head support assembly 4 are opened by rotating the shaft damper assembly, so that the tester can leave the flexible head coil.

Claims

1. A one-piece flexible head coil structure for nuclear magnetic resonance comprising a base assembly, a face mask assembly, a head cover assembly, and a head top support assembly, characterized in that: The upper portion of the base assembly (1) is provided with a face mask assembly (2) and a head cover assembly (3), and the upper portion of the head cover assembly (3) is provided with a head top support assembly (4), wherein the head top support assembly (4) is connected with the base assembly (1).

2. The integrated flexible head coil structure of claim 1, wherein: The base assembly (1) comprises a base body, a head soft binding belt, a rotating support rod, and a rotating shaft damper assembly, and the middle portion of the base body (1-1) is provided with an arc-shaped groove (1-2) for placing the head, and the outer side of the arc-shaped groove (1-2) is provided with a U-shaped groove (1-3) for placing the face mask assembly (2); the upper portions of the left and right sides of the base body (1-1) are respectively provided with grooves (1-4-1) for placing the rotating support rods, and the grooves (1-4-1) are provided with the rotating support rods (1-4) therein, the upper ends of the rotating support rods (1-4) are connected with the head top support assembly (4), and the lower ends of the rotating support rods (1-4) are connected with the rotating shaft damper assembly.

3. The integrated flexible head coil structure of claim 2, wherein: The rotating shaft damper assembly comprises a rotating shaft damper base and a rotating shaft damper, one end of the rotating shaft damper (1-5) is connected with the inside of the left and right sides of the base body (1-1) through the rotating shaft damper base (1-6), the other end of the rotating shaft damper (1-5) is connected with the lower portion of the rotating support rod (1-4), and the outer sides of the left and right sides of the base body (1-1) are respectively provided with coil integral carrying double-sided handles (1-7).

4. The integrated flexible head coil structure of claim 2, wherein: The head soft binding belt (1-8) is arranged at the outer side of the rear portion of the arc-shaped groove (1-2), and the head soft binding belt (1-8) is received and restrained on the base body (1-1) through the ring buckles at the two ends of the base body (1-1).

5. The integrated flexible head coil structure of claim 1, wherein: The face mask assembly (2) comprises a face mask soft coil made by using a soft foam heat pressing process or a soft foam made by using a sewing process, and a bulge, the face mask soft coil (2-1) has a U-shaped structure in cross section, and the face mask soft coil (2-1) is provided with hollow positions for the eyes and the nose, the U-shaped opening of the face mask soft coil (2-1) is located in the U-shaped groove (1-3) of the base body (1-1), and the left and right inner sides of the U-shaped opening of the face mask soft coil (2-1) are respectively provided with the bulges (2-2).

6. The integrated flexible head coil structure of claim 1, wherein: The head cover assembly (3) comprises a head cover hard shell coil and a front handle or a frame assembly, the rear portion of the face mask soft coil (2-1) is connected with the head cover hard shell coil (3-1), the top front portion of the head cover hard shell coil (3-1) is connected with the front handle or the frame assembly (3-2), the top rear portion of the head cover hard shell coil (3-1) is connected with a rear handle (3-3), and the left and right sides of the head cover hard shell coil (3-1) are respectively connected with the head top support assembly (4).

7. The integrated flexible head coil structure of claim 1, wherein: The head top support assembly (4) comprises a head top support upper shell, a head top support lower shell, and a lifting connection assembly, the outer side of the head top support upper shell (4-1) is connected with the head top support lower shell (4-2), and the head top support upper shell (4-1) and the head top support lower shell (4-2) have a U-shaped structure, the left and right ends of the U-shaped opening of the head top support lower shell (4-2) are respectively connected with the upper portions of the rotating support rods (1-4) of the left and right sides of the base (1) through the lifting connection assembly.

8. The integrated flexible head coil structure of claim 7, wherein: The lifting connecting assembly comprises a lifting rack, a lifting rotary damping gear assembly, and the inside left and right sides of the overhead support lower shell (4-2) are respectively connected with the lifting rack (4-3), the lifting rack (4-3) is connected with the lifting rotary damping gear assembly (4-4) in meshing.

9. The integrated flexible head coil structure of claim 8, wherein: The lifting rotary damping gear assembly (4-4) comprises a damping gear, a damping gear shaft and a damping gear support. The damping gear (4-4-1) and the gear shaft are in an integral structure, the damping gear (4-4-1) and the gear shaft are connected with the damping gear support (4-4-2), and the damping gear support (4-4-2) is fixedly connected with the head cover hard shell coil (3-1).

10. A nuclear magnetic resonance integrated flexible head coil structure according to claim 7 or 8, wherein: The lifting connecting assembly is in a gear and rack meshing stepless lifting structure mode or a positioning rod and positioning hole cooperation stepwise lifting structure mode.

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