CN112557976A - Head and neck coil and magnetic resonance system - Google Patents
Head and neck coil and magnetic resonance system Download PDFInfo
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- CN112557976A CN112557976A CN201910918082.0A CN201910918082A CN112557976A CN 112557976 A CN112557976 A CN 112557976A CN 201910918082 A CN201910918082 A CN 201910918082A CN 112557976 A CN112557976 A CN 112557976A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
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Abstract
The invention relates to a head and neck coil, which comprises a head coil and a neck coil. The head coil has a head space accommodating the head. The neck coil is arranged at the opening of the head space on the head coil, the neck coil comprises a front neck coil and a back neck coil, and the front neck coil and the back neck coil are arranged in a surrounding mode to form the neck space. The front neck coil is movably connected with the head coil, the front neck coil is close to or far away from the back neck coil when moving, and the neck space is correspondingly reduced or increased. The invention also provides a magnetic resonance system comprising the head and neck coil. Above-mentioned neck coil and magnetic resonance system set up and can adjust the size of neck space when the preceding neck coil of head coil moves about, have improved neck coil to different types of patients' adaptability. The neck coil with the adjustable neck space can obviously improve the signal-to-noise ratio of the neck scanning signal while ensuring the signal-to-noise ratio of the head scanning signal, thereby integrally improving the diagnosis accuracy of the neck coil and the magnetic resonance system to a patient.
Description
Technical Field
The invention relates to the technical field of magnetic resonance imaging, in particular to a head and neck coil and a magnetic resonance system.
Background
During magnetic resonance scanning, a patient enters a magnetic resonance scanning area, and particularly when the head and the neck of the patient are scanned, a coil matched with the head and the neck of a human body is required to complete scanning. The existing head and neck coils are generally fixed in size or the size of the head and the neck can be adjusted synchronously. The head and neck coil with fixed size has poor adaptability to patients with different body types, and the head and neck coil with the head and the neck synchronously adjusted in size cannot simultaneously ensure the signal-to-noise ratio of the head scanning signal and the signal-to-noise ratio of the neck scanning signal.
Disclosure of Invention
Therefore, it is necessary to provide a head and neck coil and a magnetic resonance system which have strong adaptability to the body shape of a patient and a high signal-to-noise ratio, aiming at the problem that the existing head and neck coil cannot take account of the body shape adaptability and the signal-to-noise ratio of the patient.
A head and neck coil, comprising:
a head coil having a head space accommodating a head;
the neck coil is arranged at an opening of the head space on the head coil and comprises a front neck coil and a back neck coil, and the front neck coil and the back neck coil are arranged in a surrounding manner to form a neck space; the front neck coil is movably connected to the head coil, the front neck coil is close to or far away from the back neck coil when moving, and the neck space is correspondingly reduced or increased.
In one embodiment, the head coil is provided with a plurality of rotary joints, and the front neck coil is rotationally connected with the head coil through the plurality of rotary joints; when the front neck coil rotates to be close to or far away from the back neck coil, the neck space is correspondingly reduced or increased.
In one embodiment, the head coil includes a face coil and a hindbrain coil, the face coil is covered on the hindbrain coil, the face coil and the hindbrain coil form the head space, and a plurality of rotary joints are arranged on the face coil and/or the hindbrain coil.
In one embodiment, the front neck coil is detachably inserted into the rotary joint.
In one embodiment, the head coil has a first electrical interface provided to the revolute joint.
In one embodiment, the anterior neck coil comprises an anterior neck main body movably disposed on the head coil and an anterior neck flexible portion disposed on the anterior neck main body for contacting the anterior neck of the patient when the anterior neck main body is moved in a direction approaching the posterior neck coil.
In one embodiment, the nape coil has two opposite free ends, and the two opposite free ends can be close to or far away from each other under the action of external force.
In one embodiment, the head coil comprises a face coil and a hindbrain coil, the face coil is arranged separately from the hindbrain coil, and the hindbrain coil is arranged at a position close to the neck of the patient; when the face coil is covered on the hindbrain coil, the hind neck coil is pressed in the face coil, and then the hind neck coil is tightly attached to the hind neck of the patient.
In one embodiment, the head and neck coil further comprises a torsion spring compression bar, the torsion spring compression bar is of a bending structure, and the torsion spring compression bar is rotatably arranged on the back neck coil; when the facial coil is covered on the hindbrain coil, the facial coil is pressed against one end of the torsion spring compression bar, and the other end of the torsion spring compression bar presses the back neck coil.
A magnetic resonance system comprises a head and neck coil used for transmitting or receiving magnetic resonance imaging signals, and is characterized in that the head and neck coil comprises a head coil and a neck coil, the head coil comprises a face coil and a hindbrain coil, the face coil and the hindbrain coil are of a structure capable of being opened and closed back and forth, and the face coil and the hindbrain coil are combined to form a head space used for accommodating the head; the neck coil is arranged at the opening of the head space on the head coil and comprises a front neck coil and a back neck coil; the foreneck coil connect in facial coil, the nape coil connect in the back brain coil, the foreneck coil with the nape coil encloses to establish and forms the neck space, the size in neck space is adjustable.
Above-mentioned neck coil and magnetic resonance system set up and can adjust the size of neck space when the preceding neck coil of head coil moves about, have improved neck coil to different types of patients' adaptability. The neck coil with the adjustable neck space can obviously improve the signal-to-noise ratio of the neck scanning signal while ensuring the signal-to-noise ratio of the head scanning signal, thereby integrally improving the diagnosis accuracy of the neck coil and the magnetic resonance system to a patient.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a head and neck coil in a use state according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an open state of the head and neck coil according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a facial coil structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of an assembly structure of a face coil and a front neck coil according to an embodiment of the present invention;
FIG. 5 is a bottom view of the face coil and neck coil assembly according to one embodiment of the present invention;
FIG. 6 is a schematic view of an assembly structure of a hindbrain coil and a nape coil according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a hindbrain coil structure according to an embodiment of the present invention;
FIG. 8 is a schematic view of a nape coil configuration according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a torsion spring compression bar according to an embodiment of the present invention.
Wherein:
10-head and neck coil
100-head coil
110-face coil
120-hindbrain coil
121-third Electrical interface
130-head space
140-rotary joint
150-first electrical interface
200-neck coil
210-front neck coil
212-front neck body
213-front neck Flexible portion
220-Back neck coil
221-second Electrical interface
230-cervical space
300-torsional spring compression bar
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.
As shown in fig. 1-2, an embodiment of the present invention provides a whiplash coil 10, the whiplash coil 10 including a head coil 100 and a neck coil 200, the head coil 100 having a head space 130 for accommodating a head. The neck coil 200 is disposed at an opening of the head space 130 of the head coil 100, the neck coil 200 includes a front neck coil 210 and a back neck coil 220, and the front neck coil 210 and the back neck coil 220 are enclosed to form a neck space 230. The anterior neck coil 210 is movably coupled to the head coil 100, and the anterior neck coil 210 moves closer to or farther from the posterior neck coil 220 with a corresponding decrease or increase in the neck space 230.
Alternatively, the anterior cervical coil 210 may be slid or moved to the left and right to facilitate imaging of the left or right side of the neck (carotid artery). Optionally, the neck coil 200 is a flexible structure, and the left and right sides of the flexible structure may be bent relatively to form a U-shaped or semicircular structure, so that the front neck coil 210 and the back neck coil 220 form a structure that completely covers the circumference of the neck, and the completely covered structure may be bound and shaped by a binding band disposed on the back neck coil 220.
When the head and neck coil 10 is used to perform a magnetic resonance examination, the head of the patient first enters the head coil 100, the nape of the patient is fitted to the nape coil 220, and then the operator moves the front neck coil 210 in a direction to approach the nape coil 220 until the front neck coil 210 is fitted to the front neck of the patient. The head and neck coil 10 can adjust the size of the neck space 230 when the front neck coil 210 arranged on the head coil 100 moves, and improves the adaptability of the head and neck coil 10 to patients with different body types. The neck coil 10 with the adjustable neck space 230 obviously improves the signal-to-noise ratio of the neck scanning signal while ensuring the signal-to-noise ratio of the head scanning signal, thereby integrally improving the diagnosis accuracy of the neck coil 10 and the magnetic resonance system to a patient.
When the front neck coil 210 movably arranged on the head coil 100 moves relative to the back neck coil 220, the size of the neck space 230 can be conveniently and efficiently adjusted, and the signal-to-noise ratio of the neck scanning signal is obviously improved. As an implementation manner, the front neck coil 210 is movably disposed on the head coil 100 by rotating, sliding or other implementation manners as long as the front neck coil 210 can move close to or away from the back neck coil 220 when moving relative to the head coil 100, and the invention does not limit the specific manner in which the front neck coil 210 is movably connected to the head coil 100. As shown in fig. 3 to 5, in one embodiment of the present invention, the head coil 100 has a plurality of rotational joints 140, and the front neck coil 210 is rotatably connected to the head coil 100 through the plurality of rotational joints 140. The front neck coil 210 rotates closer to or farther from the back neck coil 220, and the neck space 230 correspondingly decreases or increases. The adoption of the rotary connection mode has the advantage of convenient realization, and the rotary connection mode of the front neck coil 210 relative to the head coil 100 avoids obviously increasing the moving space of the front neck coil 210, and reduces the occupied space of the head and neck coil 10 in the using process.
The use of the revolute joint 140 to effect rotation of the anterior neck coil 210 relative to the head coil 100 ensures a smooth rotation process. In practical conditions, the number of the rotary joints 140 can be designed according to practical requirements, as long as the stable rotation of the front neck coil 210 relative to the head coil 100 can be ensured. As shown in fig. 3 to 5, in an embodiment of the present invention, the number of the rotation joints 140 connected to the head coil 100 and the front neck coil 210 is two, two rotation joints 140 are spaced apart on the head coil 100, and two rotation joints 140 are respectively connected to two spaced apart positions on the front neck coil 210. The central connecting line of the two rotating joints 140 is the rotating axis of the front neck coil 210. The two rotational joints 140 ensure smooth rotation of the front neck coil 210 with respect to the head coil 100.
In the actual detection process, the size difference of the head and the neck between patients with different body types is mainly reflected in the neck, and the sizes of the heads of the patients with different body types are approximately the same. Optionally, the head coil 100 of the present invention is integrated or separated, as long as the head of the patient can be ensured to smoothly enter the head coil 100, and the present invention does not limit the structural manner of the head coil 100. As shown in fig. 1 to 6, in an embodiment of the present invention, the head coil 100 is a split structure, the head coil 100 includes a face coil 110 and a hindbrain coil 120, the face coil 110 is covered on the hindbrain coil 120, the face coil 110 and the hindbrain coil 120 form a head space 130, and a plurality of rotational joints 140 are disposed on the face coil 110 and/or the hindbrain coil 120. The split head coil 100, including the hindbrain coil 120 and the face coil 110, facilitates quick and safe entry of the patient's head into the head space 130. In the present embodiment, the head of the patient first enters the hindbrain coil 120, and then the operator covers the face coil 110 over the hindbrain coil 120.
It is understood that the face coil 110 and the hindbrain coil 120 can be completely separated, or the position of the face coil 110 relative to the hindbrain coil 120 can be changed only by rotating the connection, etc., as long as the head of the patient can be conveniently and safely inserted into the head coil 100. As shown in fig. 3 to 6, in an embodiment of the present invention, the face coil 110 and the back brain coil 120 can be completely separated, the face coil 110 and the back brain coil 120 can be mutually positioned by the positioning protrusions and the positioning grooves, and an operator can conveniently and quickly remove the face coil 110 from the back brain coil 120 or place the face coil 110 on the back brain coil 120. Further, the front neck coil 210 is rotatably connected to the face coil 110 by the rotary joints 140, and the two rotary joints 140 are positioned on the face coil 110 close to the patient's face. The face coil 110 is closer to the front neck coil 210 than the back brain coil 120, and the rotational connection of the front neck coil 210 to the face coil 110 can simplify the connection structure. As another way of realization, the anterior cervical coil 210 is rotationally connected to the posterior cerebral coil 120, and the rotational joint 140 is correspondingly disposed on the posterior cerebral coil 120, so that the neck of the patient can be separately examined by magnetic resonance when the facial coil 110 is removed. In other embodiments, two rotational joints 140 are mounted on the face coil 110 and the hindbrain coil 120, respectively, and the anterior neck coil 210 is configured to rotate relative to the head coil 100 through the connection structure.
In an embodiment of the present invention, as shown in fig. 3 to 5, the front neck coil 210 is detachably inserted into the rotary joint 140, so as to facilitate the quick installation and removal of the front neck coil 210 on the head coil 100, and at the same time, the interchangeability of various parts in the head and neck coil 10 provided by this embodiment is increased, and different front neck coils 210 can be used with different head coils 100. Further, the front neck coil 210 has a wire connection end, the head coil 100 further has a first electrical interface 150, the first electrical interface 150 is disposed on the rotation joint 140, and when the front neck coil 210 is rotatably disposed on the head coil 100, a cable passing through the wire connection end is communicated with the first electrical interface 150. The head coil 100 supplies power to the front neck coil 210 and transmits signals, so that separate power supply and signal transmission lines of the front neck coil 210 are saved, and the structure of the head and neck coil 10 is simplified. On the other hand, the mode of the electrical interface has the advantages of stable connection and strong universality. When the neck coil 200 is used alone, the neck coil can be connected with the first electrical interface on the front neck coil 210 through a universal interface, which is convenient for use.
It should be understood that the rotation angle of the front neck coil 210 relative to the head coil 100 may be determined according to actual conditions, as long as the neck space 230 can be adjusted within a proper range. In one implementation of the present invention, the rotational joint 140 is rotated between 5-50, meaning that the front neck coil 210 can be rotated in the range of 5-50 relative to the head coil 100. The above-mentioned rotation range of the anterior cervical coil 210 effectively ensures the spatial adaptation of the cervical coil 10 provided by the present embodiment to most patients' necks. Further, the rotary joint 140 can keep the front neck coil 210 stable at any position within the range of the rotation angle, and when the operator rotates the front neck coil 210 to fit the front neck of the patient, the weight of the front neck coil 210 is borne by the rotary joint 140, thereby reducing the pressure on the neck of the patient to the maximum extent. As a realizable way, the rotational joint 140 has a damping structure inside, and the damping structure increases the friction force when the rotational joint 140 rotates, thereby realizing that the rotational joint 140 keeps the front neck coil 210 stable at any position within the rotation angle range.
The hard contact between the anterior neck coil 210 and the patient's anterior neck can cause diaphragmatic pain and even diaphragmatic injury to the patient's anterior neck, thereby affecting the outcome of the magnetic resonance examination. In one embodiment of the present invention, as shown in fig. 3-5, the front neck coil 210 includes a front neck main body 212 and a front neck flexible portion 213, the front neck main body 212 is movably disposed on the head coil 100, the front neck flexible portion 213 is disposed on the front neck main body 212, and the front neck flexible portion 213 is adapted to contact with the front neck of the patient when the front neck main body 212 moves in a direction approaching the back neck coil 220. The flexible portion 213 of the foreneck on the foreneck coil 210 can not only ensure the flexible contact between the foreneck coil 210 and the foreneck of the patient, but also ensure the close fitting of the foreneck coil 210 and the foreneck of the patient, and further ensure that the detection signal has a higher signal-to-noise ratio. As an implementation manner, the material of the front neck flexible portion 213 on the front neck coil 210 is latex or silica gel, which not only ensures the flexible contact between the front neck flexible portion 213 and the front neck of the patient, but also avoids the allergy of the front neck of the patient.
When the head and neck coil 10 according to the present invention is used to perform a magnetic resonance examination of the head and neck of a patient, the patient is kept in a lying posture with the nape of the patient in direct contact with the nape coil 220. Similarly, the hard contact between nape coil 220 and the patient nape can be painful even the diaphragm injures patient's preceding neck, and then influences the result that magnetic resonance detected, and because the action of gravity, the contact pressure between patient nape and nape coil 220 can be great. The nape coil 220 can have opposite free ends that can be drawn closer together or further apart when the nape coil 220 is subjected to an external force. Optionally, the nape coil 220 is wholly made of flexible elastic material or the side of the nape coil 220 contacting with the nape of the patient has flexible elasticity, which can be designed according to actual requirements. As shown in FIGS. 6 to 8, in an embodiment of the present invention, the nape coil 220 has flexibility as a whole, the nape coil 220 is elastically deformed by an external force, and the nape coil 220 restores its shape when the external force is removed. When receiving the pressure of patient nape, nape coil 220 can take place the deformation of adaptation along with the size of patient nape, has reduced the local pressure of patient nape, has guaranteed the travelling comfort of patient in the magnetic resonance inspection process, and patient's nape has been hugged closely to nape coil 220 simultaneously, has guaranteed that detected signal has higher SNR. As an achievable mode, the material of the nape coil 220 is latex or silica gel, which can ensure the flexible contact between the nape coil 220 and the nape of the patient and avoid the allergy of the nape of the patient.
The flexible back neck coil 220 can deform adaptively when compressed by the back neck of the patient, thereby ensuring the close fit between the back neck of the patient and the back neck coil 220. However, when the patient's neck is thin, the patient's nape cannot be held in close contact with the nape coil 220, and an auxiliary structure is required to make the nape coil 220 closely contact with the patient's nape. In one implementation, as shown in fig. 3-6, the head coil 100 includes a face coil 110 and a hindbrain coil 120, the face coil 110 is disposed separately from the hindbrain coil 120, and the nape coil 220 is disposed at a position of the hindbrain coil 120 near the neck of the patient. When the face coil 110 is covered on the back brain coil 120, the back neck coil 220 is pressed in the face coil 110, and then the back neck coil 220 is tightly attached to the back neck of the patient. The internal pressure applied by the nape coil 220 is applied by the face coil 110, and when the operator removes the face coil 110 from the back head coil 120, the nape coil 220 is kept in an open state, which facilitates the neck of patients of various body types to enter the nape coil 220. When the operator covers the face coil 110 over the occipital coil 120, the nape coil 220 is pressed in the face coil 110, and the nape coil 220 is attached to the nape of the patient. The internal pressure of the face coil 110 against the nape coil 220 improves the adaptability of the nape coil 220 to the neck of patients of different sizes.
Alternatively, when the face coil 110 is housed in the occipital coil 120, the occipital coil 110 directly presses the occipital coil 220, or the face coil 110 presses the occipital coil 220 through an intermediate structure. As shown in fig. 7-9, as an implementation manner, the head and neck coil 10 further includes a torsion spring pressing rod 300, the torsion spring pressing rod 300 is a bending structure, and the torsion spring pressing rod 300 is rotatably disposed on the back neck coil 220. When the facial coil 110 covers the hindbrain coil 120, the facial coil 110 presses against one end of the torsion spring strut 300, and the other end of the torsion spring strut 300 presses the nape coil 220. The two ends of the torsion spring compression bar 300 transmit pressure through the middle torsion spring, and the face coil 110 and the back neck coil 220 are elastically pressed through the torsion spring compression bar 300. When the neck of the patient is thin, the deformation generated by the torsion spring is small, the deformation generated by the nape coil 220 is large, and the tight fit between the nape coil 220 and the nape of the patient is ensured. When the neck of the patient is thick, the deformation generated by the torsion spring is large, and the deformation generated by the torsion spring balances the deformation generated by a part of the nape coil 220, so that the pressure between the nape coil 220 and the nape of the patient is kept in a proper range, and the smooth operation of the magnetic resonance examination process is further ensured.
In an embodiment of the present invention, as shown in fig. 7 to 9, the nape coil 220 is detachably inserted into the position of the nape coil 120 close to the neck of the patient, so as to facilitate the rapid installation and detachment of the nape coil 220 on the nape coil 120, and at the same time, to increase the interchangeability of the parts of the head and neck coil 10 provided by this embodiment, different nape coils 220 can be used with different nape coils 120. Further, the nape coil 220 has a second electrical interface 221, the cerebellar coil 120 also has a third electrical interface 121, the second electrical interface 221 is inserted into the third electrical interface 121, and the third electrical interface 121 is connected with the third electrical interface 221. The back head coil 120 supplies power to the back neck coil 220 and transmits signals, so that the independent power supply and signal transmission line of the back neck coil 220 is saved, and the structure of the head and neck coil 10 is simplified. On the other hand, the mode of the electrical interface has the advantages of stable connection and strong universality. When the neck coil 200 is used alone, the neck coil can be connected with the second electrical interface 221 on the back neck coil 220 through a universal interface, so that the neck coil is convenient to use.
An embodiment of the present invention further provides a magnetic resonance system, including the head and neck coil 10 according to any one of the above embodiments. Specifically, the magnetic resonance system includes a head and neck coil 10 for transmitting or receiving magnetic resonance imaging signals, and the head and neck coil 10 includes a head coil 100 and a neck coil 200. The head coil 100 includes a face coil 110 and a back brain coil 120, the face coil 110 and the back brain coil 120 are in a front-back openable structure, and the face coil 110 and the back brain coil 120 are combined to form a head space 130 for accommodating the head. The neck coil 200 is disposed at an opening of the head space 130 on the head coil 100, and the neck coil 200 includes a front neck coil 210 and a rear neck coil 220. The front neck coil 210 is connected to the face coil 110, the back neck coil 220 is connected to the back brain coil 120, the front neck coil 210 and the back neck coil 220 enclose a neck space 230, and the size of the neck space 230 is adjustable. Since the head and neck coil 10 has many advantages as described above, the magnetic resonance system also has corresponding advantages, which are not described in detail herein. In one embodiment, the bottom of the neck coil 10 is provided with a mounting slot in which the base of the magnetic resonance system is mounted. It will be appreciated that the base may be snap-fitted into the mounting slot. Or the base can be installed in the installation groove in a screw connection mode. Or the base can be arranged in the mounting groove in other connection modes.
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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A head and neck coil (10), characterized in that the head and neck coil (10) comprises:
a head coil (100) having a head space (130) accommodating a head;
the neck coil (200) is arranged at the opening of the head space (130) on the head coil (100), the neck coil (200) comprises a front neck coil (210) and a back neck coil (220), and the front neck coil (210) and the back neck coil (220) are arranged in an enclosing manner to form a neck space (230); the anterior cervical coil (210) is movably connected to the head coil (100).
2. The whiplash coil as claimed in claim 1 wherein the head coil (100) has a plurality of revolute joints (140), the anterior whiplash coil (210) being rotationally coupled to the head coil (100) by the plurality of revolute joints (140); the front neck coil (210) rotates closer to or farther from the back neck coil (220), and the neck space (230) decreases or increases accordingly.
3. The cervical coil according to claim 2, wherein the head coil (100) comprises a face coil (110) and a hindbrain coil (120), the face coil (110) is covered on the hindbrain coil (120), the face coil (110) and the hindbrain coil (120) form the head space (130), and a plurality of the rotational joints (140) are provided on the face coil (110) and/or the hindbrain coil (120).
4. The cervical coil according to claim 2 or 3, wherein the anterior cervical coil (210) is detachably inserted in the revolute joint (140).
5. The neck coil according to claim 2 or 3, wherein the head coil (100) has a first electrical interface (150), the first electrical interface (150) being provided to the revolute joint (140).
6. The whiplash coil as claimed in claim 1 wherein the whiplash coil (210) comprises a whiplash body (212) and a whiplash flexible portion (213), the whiplash body (212) being movably disposed to the whiplash coil (100), the whiplash flexible portion (213) being disposed to the whiplash body (212), the whiplash flexible portion (213) being adapted to contact a whiplash of the patient when the whiplash body (212) is moved in a direction approaching the whiplash coil (220).
7. The whip coil as claimed in claim 1, wherein the nape coil (220) has opposite free ends, and the opposite free ends of the nape coil (220) can be moved closer to or farther away from each other by an external force.
8. The whiplash coil as claimed in claim 7 wherein the head coil (100) comprises a face coil (110) and a hindbrain coil (120), the face coil (110) being provided separately from the hindbrain coil (120), the hindbrain coil (220) being provided at a location of the hindbrain coil (120) near the patient's neck; when the face coil (110) is covered on the hindbrain coil (120), the hind neck coil (220) is pressed in the face coil (110), and then the hind neck coil (220) is tightly attached to the hind neck of the patient.
9. The head and neck coil according to claim 8, further comprising a torsion spring strut (300), wherein the torsion spring strut (300) is of a bent structure, and the torsion spring strut (300) is rotatably disposed on the nape coil (220); when the face coil (110) is covered on the hindbrain coil (120), the face coil (110) is pressed against one end of the torsion spring compression bar (300), and the other end of the torsion spring compression bar (300) presses the back neck coil (220) in a pressing manner.
10. A magnetic resonance system comprising a head and neck coil (10) for transmitting or receiving magnetic resonance imaging signals, wherein the head and neck coil (10) comprises a head coil (100) and a neck coil (200), the head coil (100) comprises a face coil (110) and a hindbrain coil (120), the face coil (110) and the hindbrain coil (120) are in a front-back openable structure, and the face coil (110) and the hindbrain coil (120) are combined together to form a head space (130) for accommodating the head;
a neck coil (200) disposed at an opening of the head space (130) on the head coil (100), the neck coil (200) including a front neck coil (210) and a back neck coil (220); the front neck coil (210) is connected to the face coil (110), the back neck coil (220) is connected to the back brain coil (120), a neck space (230) is formed by the front neck coil (210) and the back neck coil (220) in a surrounding mode, and the size of the neck space (230) is adjustable.
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| CN201910918082.0A CN112557976B (en) | 2019-09-26 | 2019-09-26 | Head and neck coil and magnetic resonance system |
| US17/033,928 US11397229B2 (en) | 2019-03-14 | 2020-09-28 | Local coil apparatus for magnetic resonance imaging |
| US17/814,827 US11733327B2 (en) | 2019-03-14 | 2022-07-25 | Local coil apparatus for magnetic resonance imaging |
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| CN201910918082.0A CN112557976B (en) | 2019-09-26 | 2019-09-26 | Head and neck coil and magnetic resonance system |
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| CN112557976B CN112557976B (en) | 2022-10-28 |
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Cited By (1)
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|---|---|---|---|---|
| CN113109749A (en) * | 2021-05-08 | 2021-07-13 | 苏州众志医疗科技有限公司 | Split type radio frequency coil device for magnetic resonance head and neck imaging |
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