CN117598684B - Brain MR device - Google Patents
Brain MR device Download PDFInfo
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- CN117598684B CN117598684B CN202410087248.XA CN202410087248A CN117598684B CN 117598684 B CN117598684 B CN 117598684B CN 202410087248 A CN202410087248 A CN 202410087248A CN 117598684 B CN117598684 B CN 117598684B
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- 210000004556 brain Anatomy 0.000 title claims abstract description 12
- 230000008093 supporting effect Effects 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims description 39
- 230000037431 insertion Effects 0.000 claims description 39
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
- A61B5/0042—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
- A61B5/702—Posture restraints
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- High Energy & Nuclear Physics (AREA)
- Physical Education & Sports Medicine (AREA)
- Neurology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention particularly relates to an MR device for scanning brain, belonging to the technical field of magnetic resonance detection equipment. The brain-scanning MR device includes a coil, and further includes a head fixation component including a first clamping cavity, a flexible abutment cavity, a second clamping cavity, and a rigid support. The first clamping cavity comprises a first side facing the head and a second side far away from the head, a plurality of first protrusions are arranged on the second side at intervals along the axial direction of the coil, the first protrusions are used for enabling the first side to bend towards the head, and the flexible abutting cavity is arranged on the first side. The second clamping cavity comprises a third side facing the first clamping cavity and a fourth side far away from the third side, a plurality of second bulges are arranged on the third side along the axial direction of the coil, the second bulges and the first bulges are arranged in a staggered mode, and the rigid supporting part is arranged on the fourth side. The rigid supporting part supports the second clamping cavity, and the second clamping cavity can support the first clamping cavity, so that the fixing effect of the first clamping cavity on the head of a human body is improved.
Description
Technical Field
The invention belongs to the technical field of magnetic resonance detection equipment, and particularly relates to an MR device for scanning brain.
Background
The magnetic resonance examination (MR) is a medical image examination method for observing the internal structure and function of a human body, can scan the human body from any angle in any direction, can clearly display the form, the size, the structure and the change of any tissue and organ in the human body, and provides objective basis for the diagnosis of diseases and the observation of the treatment effect.
The inventor finds that when performing magnetic resonance examination, if a patient moves during magnetic resonance imaging, the problem of boundary blurring ghost may occur in contrast, which affects the contrast effect, especially when performing magnetic resonance examination on the brain of a young patient, noise may occur during the examination due to long examination time, and fatigue is easily caused to the patient, and further the patient is easily moved.
Although there is a fixing device capable of fixing a head at the time of magnetic resonance examination in the related art, the conventional fixing device has disadvantages in that it is difficult to accommodate heads of various sizes, and a contact area with the head is small, and a fixing effect is poor.
Disclosure of Invention
An object of the present invention is to provide a brain-scanning MR device including a head fixation member, which improves the fixation effect on the head of a patient.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the embodiment of the invention provides an MR device for scanning brain, which comprises a coil and also comprises a head fixing part, wherein the head fixing part comprises a first clamping cavity, a flexible abutting cavity, a second clamping cavity and a rigid supporting part. The first clamping cavity comprises a first side facing the head and a second side far away from the head, a plurality of first protrusions are arranged on the second side at intervals along the axial direction of the coil, the first protrusions are used for enabling the first side to bend towards the head, and the flexible abutting cavity is arranged on the first side. The second clamping cavity comprises a third side facing the first clamping cavity and a fourth side far away from the third side, a plurality of second bulges are arranged on the third side along the axial direction of the coil, the second bulges and the first bulges are arranged in a staggered mode, and the rigid supporting part is arranged on the fourth side.
In some embodiments, the brain-scanning MR device further comprises a base, the head-securing member further comprises a swivel ring rotatably coupled to the base, a rotation axis of the swivel ring extending in an axial direction of the coil, and the rigid support portion is coupled to the swivel ring.
In some embodiments, the end of the rigid support portion connected to the rotating ring body is in a circular arc shape, the rotating ring body is provided with a circular arc slot adapted to the annular end of the rotating ring body, and the circular arc end of the rigid support portion is inserted into the circular arc slot.
In some embodiments, along the axial direction of the coil and the extending direction of the circular arc end of the rigid support portion, the rigid support portion is provided with a plurality of concave portions at intervals, and the head fixing component further comprises an inserting portion movably connected to the rotating ring body, and the inserting portion is alternatively inserted into the concave portion.
In some embodiments, the flexible abutment cavity is adhered to the first side.
In some embodiments, the first side is provided with a connecting wall, the connecting wall encloses a connecting cavity, one side of the connecting cavity facing the flexible abutment cavity is provided with an opening, the opening of the connecting cavity is smaller than the inside, the flexible abutment cavity is provided with an insertion cavity, the insertion cavity is partially accommodated in the connecting cavity, and the connecting cavity is used for accommodating the bonding medium.
In some embodiments, the connecting wall is hollow inside.
In some embodiments, the portion of the insertion cavity received within the connection cavity includes a first projection and a second projection, the first projection and the second projection being spaced apart along the wall thickness of the flexible abutment cavity.
In some embodiments, the flexible abutment cavity includes a fifth side facing the first clamping cavity and a sixth side remote from the fifth side, the insertion cavity protruding partially from the sixth side.
In some embodiments, the first clamping cavity, the second clamping cavity, the flexible abutment cavity and the rigid support portion are correspondingly disposed in plurality around the circumference of the head.
The invention has the following beneficial effects: through aerify first centre gripping chamber for flexible support can support in human head by the chamber, make the head fixed part can be applicable to the human head of multiple equidimension, increased the adaptability of head fixed part. The flexible propping cavity is in contact with the head of the human body, so that the comfort of the head of the human body when the head of the human body is fixed is improved, the contact area with the head of the human body is increased, and the fixing effect on the head of the human body is improved.
The rigid supporting part supports the second clamping cavity, and the second clamping cavity can also play a supporting role on the first clamping cavity, so that the risk of deformation of the first clamping cavity when the head of a human body is fixed is reduced, and the fixing effect on the head of the human body is improved.
Drawings
FIG. 1 is a schematic diagram of a brain-scanning MR device of the present invention;
FIG. 2 is a schematic view of the structure of the head fixing member of the present invention;
FIG. 3 is an enlarged view at A of FIG. 2;
fig. 4 is a schematic illustration of the connection of the first clamping chamber and the flexible abutment chamber of the present invention.
Reference numerals: the device comprises a base, a 2-coil, a 3-head fixing part, a 4-fixing ring body, a 5-rotating ring body, a 6-rigid supporting part, a 7-second clamping cavity, an 8-first clamping cavity, a 9-flexible abutting cavity, a 10-circular arc-shaped slot, an 11-inserting part, a 12-concave part, a 13-first protruding part, a 14-second protruding part, a 15-connecting wall and a 16-inserting cavity.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides an MR apparatus for scanning brain, comprising a coil 2, and further comprising a head fixation part 3, the head fixation part 3 comprising a first clamping chamber 8, a flexible abutment chamber 9, a second clamping chamber 7 and a rigid support 6. The first clamping cavity 8 comprises a first side facing the head and a second side remote from the head, the second side being provided with a plurality of first protrusions at intervals in the axial direction of the coil 2, the first protrusions being arranged to bend the first side towards the head, the flexible abutment cavity 9 being arranged on the first side. The second clamping cavity 7 comprises a third side facing the first clamping cavity 8 and a fourth side far away from the third side, a plurality of second bulges are arranged on the third side in the axial direction of the coil 2, the second bulges and the first bulges are arranged in a staggered manner, and the rigid supporting part 6 is arranged on the fourth side.
The coil 2 is a component for transmitting and receiving signals for performing magnetic resonance examination, the structure and operation principle of which are well known to those skilled in the art and will not be described here.
The axial direction of the coil 2 may be the direction shown by the X-axis in fig. 1, and when the MR device of the embodiment of the application is used for brain scanning, the head of the human body is at least partially placed in the coil 2, and the axial direction of the coil 2 may be the height direction of the human body.
The first clamping cavity 8 is used for moving the flexible abutting cavity 9, so that the flexible abutting cavity 9 can be in close contact with the human head, the purpose of fixing the human head is achieved, or the purpose of releasing the human head is achieved by enabling the flexible abutting cavity 9 to be far away from the human head.
Specifically, the first clamping cavity 8 is connected with the air charging and discharging device, so that the air charging and discharging device can charge and discharge air to the first clamping cavity 8, when air is charged into the first clamping cavity 8, the first clamping cavity 8 expands, and when the first protrusions located on the second side expand, adjacent first protrusions are mutually extruded, so that the first side bends towards the head of the human body. Conversely, when the gas is discharged from the first holding chamber 8, the first protrusion on the second side is contracted so that the first side can be away from the head of the human body.
The flexible abutting cavity 9 is used for contacting with the head of the human body, so that the comfort of the head of the human body when being fixed is improved, the contact area with the head of the human body is increased, and the fixing effect on the head of the human body is improved.
The second bulge on the third side of the second clamping cavity 7 is used for being clamped between the two adjacent first bulges, so that the two adjacent first bulges are difficult to approach each other after being expanded, and the fixing effect of the first clamping cavity 8 on the head of a human body is improved.
Specifically, the second clamping cavity 7 is connected with the inflation and deflation device, and after the first clamping cavity 8 is inflated, the second clamping cavity 7 is inflated, and the second protrusions expand and can be clamped between the first protrusions. Otherwise, the second clamping cavity 7 is deflated, and the second bulge is contracted, so that the subsequent first clamping cavity 8 is contracted conveniently.
The second protrusions may be smaller than the second protrusions far away from the shoulder of the human body, for example, after the first clamping cavity 8 is deformed, the corresponding second protrusions may still be clamped between the first protrusions.
The inflation and deflation device can be selected from existing products, and the structure and the working principle of the inflation and deflation device are known to those skilled in the art, and are not described herein.
The rigid support portion 6 is used for supporting the second clamping cavity 7, and the supporting effect of the second clamping cavity 7 is improved.
By inflating the first clamping chamber 8, the flexible abutment chamber 9 can abut against the human head, so that the head fixing part 3 can be applied to human heads of various sizes, and the adaptability of the head fixing part 3 is improved. The flexible abutting cavity 9 is in contact with the head of the human body, so that the comfort of the head of the human body when the head of the human body is fixed is improved, the contact area with the head of the human body is increased, and the fixing effect on the head of the human body is improved.
The rigid supporting portion 6 supports the second clamping cavity 7, and the second clamping cavity 7 can also play a supporting role on the first clamping cavity 8, so that the risk of deformation of the first clamping cavity 8 when the human head is fixed is reduced, and the fixing effect on the human head is improved.
In this embodiment, a side of the first clamping cavity 8, which is close to the shoulder of the human body, is connected to the rigid support portion 6, so that a side of the first clamping cavity 8, which is far from the shoulder of the human body, can be bent toward the head of the human body.
Referring to fig. 1 and 2, in some embodiments, the brain-scanning MR device further includes a base 1, the head fixing member 3 further includes a rotating ring 5, the rotating ring 5 is rotatably connected to the base 1, a rotation axis of the rotating ring 5 extends along an axial direction of the coil 2, and the rigid support portion 6 is connected to the rotating ring 5.
The base 1 may be provided with a fixed ring 4, the fixed ring 4 may be provided with an annular chute, and the rotating ring 5 may be provided with a sliding connection to the annular chute.
The rigid support portion 6 is connected to the annular chute, and when the rotary ring body 5 rotates, the rigid support portion 6 can rotate together therewith.
When the human head scans, the human head can pass through the rotary ring body 5, and when the rotary ring body 5 rotates, the position of the rigid supporting part 6 can be adjusted, so that the first clamping cavity 8 can clamp the human head at a proper position, and the fixing effect on the human body is improved. Furthermore, the head fixing part 3 can adapt to various positions, and even if a human body is in a lying or side lying state, the first clamping cavity 8 can still play a role in fixing the head of the human body by rotating the rotating ring body 5 to adjust the position of the rigid supporting part 6.
Referring to fig. 2, in some embodiments, the end of the rigid support portion 6 connected to the rotating ring body 5 is in a circular arc shape, the rotating ring body 5 is provided with a circular arc-shaped slot 10 adapted to the annular end of the rotating ring body 5, and the circular arc-shaped end of the rigid support portion 6 is inserted into the circular arc-shaped slot 10.
The circular arc end is inserted into the circular arc slot 10 so that the rigid support portion 6 can be connected to the rotating ring body 5.
The arc-shaped end is matched with the arc-shaped slot 10, so that the contact area between the arc-shaped end and the arc-shaped slot 10 is increased, and the connection strength between the rigid support part 6 and the rotating ring body 5 is improved.
Further, by controlling the length of the circular arc end inserted into the circular arc slot 10, the inclination angle of the rigid support portion 6 with respect to the swivel ring 5 can be adjusted, and further, the inclination angle of the first clamp chamber 8 in the initial state with respect to the swivel ring 5 can also be adjusted.
In this embodiment, the circular arc slot 10 may be disposed on the end surface of the rotary ring body 5.
Referring to fig. 2 and 3, in some embodiments, a plurality of concave portions 12 are disposed at intervals along the axial direction of the coil 2 and the extending direction of the circular arc end of the rigid support portion 6, the head fixing member 3 further includes an inserting portion 11, the inserting portion 11 is movably connected to the rotary ring body 5, and the inserting portion 11 is alternatively inserted into the concave portion 12.
In the embodiment in which the circular arc-shaped slot 10 is provided at the end face of the rotary ring body 5, the insertion portion 11 is movable in a direction perpendicular to the rotation axis of the rotary ring body 5.
The plurality of concave portions 12 may have appropriate concave portions 12 to be engaged with the insertion portion 11 when the lengths of the rigid support portion 6 inserted into the circular arc-shaped insertion groove 10 are different.
The insertion portion 11 is inserted into the recess portion 12 so that the position of the rigid support portion 6 with respect to the circular arc-shaped slot 10 can be fixed.
The swivel ring body 5 may be provided with an elastic member for providing an elastic force enabling the insertion portion 11 to remain inserted into the recess portion 12.
In some embodiments, the flexible abutment chamber 9 is glued to the first side.
The adhesive in this embodiment may be selected from the existing products in an appropriate manner.
The bonding connection mode enables the flexible propping cavity 9 to be tightly attached to the wall surface of the first clamping cavity 8, and the connection strength of the flexible propping cavity 9 and the first clamping cavity 8 is improved. And moreover, the bonding mode is convenient to operate and convenient to produce and manufacture.
Referring to fig. 4, in some embodiments, the first side is provided with a connecting wall 15, the connecting wall 15 encloses a connecting cavity, the side of the connecting cavity facing the flexible abutment cavity 9 is provided with an opening, the opening of the connecting cavity is smaller than the inside, the flexible abutment cavity 9 is provided with an insertion cavity 16, the insertion cavity 16 is partially accommodated in the connecting cavity, and the connecting cavity is used for accommodating an adhesive medium.
The insertion cavity 16 is hollow.
The insertion chamber 16 may be a closed chamber in which a gas is pre-stored. The insertion cavity 16 may be in an incompletely filled state such that the insertion cavity 16 is capable of a certain deformation.
An adhesive medium is fed into the connecting chamber such that the adhesive medium can adhere the inner wall of the connecting chamber and the outer wall of the insertion chamber 16, and further such that the first clamping chamber 8 can be connected with the flexible abutment chamber 9.
The hollow chamber structure of the insertion chamber 16 facilitates insertion of the insertion chamber 16 into the connection chamber.
The opening of connecting chamber is less than inside to insert and establish chamber 16 and be the cavity, can insert through pressing and establish chamber 16, make insert and establish the chamber 16 and hold the part in connecting chamber and take place to expand, reduced the interval between the inner wall of connecting chamber and the outer wall of inserting and establish chamber 16, increased the bonding effect, and treat after the bonding medium solidification, make insert and establish chamber 16 and be difficult to deviate from among the connecting chamber, improved the flexible joint strength who supports and lean on chamber 9 and first centre gripping chamber 8.
The bonding medium is used to bond the inner wall of the connecting chamber and the outer wall of the insertion chamber 16. The adhesive medium may be selected from the existing products.
When the flexible propping cavity 9 and the first clamping cavity 8 are connected in an adhering mode, although reliable connection can be guaranteed, the contact area of the flexible propping cavity 9 and the first clamping cavity 8 is large, deformation of the first clamping cavity 8 is prevented by the flexible propping cavity 9, and the first clamping cavity 8 is difficult to deform.
The inserting cavity 16 and the connecting cavity are matched to connect the flexible propping cavity 9 and the first clamping cavity 8, so that the connecting area of the flexible propping cavity 9 and the first clamping cavity 8 is reduced while the connecting strength of the flexible propping cavity 9 and the first clamping cavity 8 is ensured, and the risk that deformation of the flexible propping cavity 9 to the first clamping cavity 8 is blocked is further reduced.
The insertion chambers 16 may be provided in plural numbers, and the connection chambers may be provided in plural numbers, correspondingly.
Referring to fig. 4, in some embodiments, the connecting wall 15 is hollow inside.
The connecting wall 15 is hollow in the interior, so that the connecting wall 15 can be formed using part of the wall surface of the second holding chamber 7, i.e. part of the wall surface of the second holding chamber 7 is folded and connected, on the one hand, so that the connecting wall 15 structure can be formed. On the other hand, by controlling the amount of air in the connecting wall 15, the opening size of the connecting chamber can be adjusted, and if the opening is too large, the insertion chamber 16 is easily removed from the connecting chamber, and if the opening is too small, the adhesive medium is not easily fed into the connecting chamber, and the insertion chamber 16 is also difficult to insert into the connecting chamber.
Referring to fig. 4, in some embodiments, the portion of the insertion cavity 16 that is received within the connection cavity includes a first projection 13 and a second projection 14, the first projection 13 and the second projection 14 being spaced apart along the wall thickness of the flexible abutment cavity 9.
The wall thickness direction of the flexible abutment chamber 9 may be the direction shown by the Z-axis in the figure.
When the side of the insertion chamber 16 inserted into the connection chamber is in the expanded state, the first and second protrusions 13 and 14 cannot pass through the opening of the connection chamber. When the insertion cavity 16 is inserted into the connection cavity, the side of the insertion cavity 16 where the first and second protrusions 13 and 14 are provided may be contracted so as to be able to enter into the connection cavity.
By providing the first projection 13 and the second projection 14, the insertion cavity 16 is made difficult to escape from the connection cavity, and the connection reliability of the insertion cavity 16 and the connection cavity is increased.
Furthermore, the first protruding portion 13 and the second protruding portion 14 can accommodate an adhesive medium, and when the adhesive medium is cured, the adhesive medium forms a ring-shaped structure surrounding the inserting cavity 16, so that the risk that the inserting cavity 16 is separated from the connecting cavity is further reduced.
Referring to fig. 4, in some embodiments, the flexible abutment chamber 9 comprises a fifth side facing the first clamping chamber 8 and a sixth side remote from the fifth side, the insertion chamber 16 protruding partially from the sixth side.
The inserting portion 11 partially protrudes from the sixth side, and the portion of the inserting portion 11 protruding from the sixth side enables expansion of the portion of the inserting portion 11 accommodated in the connecting cavity, so that the operation is facilitated.
The portion of the insertion cavity 16 protruding from the sixth side may be pointed, so that the portion of the insertion portion 11 protruding from the sixth side can be pressed more quickly.
In some embodiments, the first clamping cavity 8, the second clamping cavity 7, the flexible abutment cavity 9 and the rigid support 6 are correspondingly provided in plurality around the circumference of the head.
The plurality of first clamping cavities 8 are close to the head of the human body at the same time, so that the fixing effect on the head of the human body is improved.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications, alterations, and substitutions made by those skilled in the art to the technical solution of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A scanning brain MR device comprising a coil (2), characterized by further comprising a head fixation part (3), the head fixation part (3) comprising:
a first clamping cavity (8) comprising a first side facing the head and a second side remote from the head, the second side being provided with a plurality of first protrusions at intervals along the axial direction of the coil (2), the first protrusions being for bending the first side towards the head;
a flexible abutment cavity (9) arranged at the first side;
a second clamping cavity (7) comprising a third side facing the first clamping cavity (8) and a fourth side far away from the third side, wherein a plurality of second bulges are arranged on the third side along the axial direction of the coil (2), and the second bulges and the first bulges are arranged in a staggered way;
a rigid support portion (6) provided on the fourth side;
the brain-scanning MR device further comprises a base (1), the head fixing part (3) further comprises a rotating ring body (5), the rotating ring body (5) is rotationally connected to the base (1), the rotating axis of the rotating ring body (5) extends along the axial direction of the coil (2), and the rigid supporting part (6) is connected to the rotating ring body (5);
the rigid support part (6) is circular arc-shaped at one end connected with the rotating ring body (5), the rotating ring body (5) is provided with a circular arc-shaped slot (10) matched with the annular end of the rotating ring body (5), and the circular arc-shaped end of the rigid support part (6) is inserted into the circular arc-shaped slot (10).
2. The brain-scanning MR device according to claim 1, characterized in that the rigid support portion (6) is provided with a plurality of recessed portions (12) at intervals along the axial direction of the coil (2) and the extending direction of the circular arc-shaped end of the rigid support portion (6), the head fixing member (3) further comprises an insertion portion (11), the insertion portion (11) is movably connected to the rotating ring body (5), and the insertion portion (11) is alternatively inserted into the recessed portion (12).
3. Scanning brain MR device according to claim 1, characterized in that the flexible abutment cavity (9) is glued to the first side.
4. The brain-scanning MR device according to claim 1, characterized in that the first side is provided with a connecting wall (15), the connecting wall (15) enclosing a connecting cavity, the side of the connecting cavity facing the flexible abutment cavity (9) being provided with an opening, the opening of the connecting cavity being smaller than the interior, the flexible abutment cavity (9) being provided with an insertion cavity (16), the insertion cavity (16) being partly accommodated in the connecting cavity, the connecting cavity being for accommodating an adhesive medium.
5. Scanning brain MR device according to claim 4, characterized in that the connecting wall (15) is hollow inside.
6. The brain-scanning MR device according to claim 4, characterized in that the portion of the insertion cavity (16) accommodated in the connection cavity comprises a first projection (13) and a second projection (14), the first projection (13) and the second projection (14) being arranged at a distance in the wall thickness direction of the flexible abutment cavity (9).
7. Scanning brain MR device according to claim 4, characterized in that the flexible abutment cavity (9) comprises a fifth side facing the first clamping cavity (8) and a sixth side remote from the fifth side, the insertion cavity (16) protruding partly from the sixth side.
8. The brain-scanning MR device according to claim 1, wherein a plurality of the first clamping chamber (8), the second clamping chamber (7), the flexible abutment chamber (9) and the rigid support (6) are provided around the circumference of the head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410087248.XA CN117598684B (en) | 2024-01-22 | 2024-01-22 | Brain MR device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410087248.XA CN117598684B (en) | 2024-01-22 | 2024-01-22 | Brain MR device |
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| Publication Number | Publication Date |
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| CN117598684A CN117598684A (en) | 2024-02-27 |
| CN117598684B true CN117598684B (en) | 2024-04-02 |
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