CN207965114U - A kind of eye coil device for magnetic resonance imaging - Google Patents
A kind of eye coil device for magnetic resonance imaging Download PDFInfo
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- CN207965114U CN207965114U CN201721589720.1U CN201721589720U CN207965114U CN 207965114 U CN207965114 U CN 207965114U CN 201721589720 U CN201721589720 U CN 201721589720U CN 207965114 U CN207965114 U CN 207965114U
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Abstract
This application discloses a kind of eye coil devices for magnetic resonance imaging, the device includes the coil case that coil and wear-type compatible with human body head is arranged inside, and nose the gap of stepping corresponding with human body nose and two eye relief holes corresponding with human body eyes are offered on the coil case.The application can carry out human body eyes the Magnetic resonance imaging of high quality.
Description
Technical field
This application involves magnetic resonance imaging arts, and in particular to a kind of eye RF receiving coil for magnetic resonance imaging
Device.
Background technology
Magnetic resonance imaging system refers to the imaging device for utilizing one kind made of electromagnetic induction phenomenon to be used for medical inspection, wherein
Radio frequency (RF, RadioFrequency) receiving coil is one of them important component.The effect of RF receiving coil wherein
The eyes of adult can be likened, the final clarity of image is directly directly proportional with coil signal-to-noise ratio (sensitivity).In order to improve figure
The clarity (or signal-to-noise ratio or sensitivity) of picture, the primary starting point of general coil design are to determine the shape and size of coil,
Size can neither less can not be too small.Because if coil dimension greatly, can reduce the clarity of magnetic resonance image very much；And
If too small, and there may be patient's privileged site of significant proportion that can not be placed into coil inside.So coil design is primary
Principle by as possible small of being sized for of coil, and is pasted as possible in the case where meeting the size of scanned position or object
Nearly scanned position or object.
Therefore, when scanning human body different parts, best image could be obtained with dedicated coil by generally requiring
Effect, for example the coil of scanning head is known as head coil, the kneed coil of scanning is known as knee joint coil, scans eye
Coil is known as informer's circle or eye coil.Magnetic resonance imaging helps significantly to promote the property of clinical image using coils special
Energy.
Invention content
The purpose of the application is：It is proposed that a kind of image quality is high, magnetic resonance imaging eye coil device of comfortable wearing.
In order to achieve the above object, the technical solution of the application is：
A kind of eye coil device for magnetic resonance imaging, including coil is arranged inside and is mutually fitted with human body head
The coil case for the wear-type matched, offer on the coil case nose the gap of stepping corresponding with human body nose and with
The corresponding two eye relief holes of human body eyes, and be connected on the coil case for by its bundled fixed in human body
The bandage on head.
The application further includes following preferred embodiment based on the above technical solution：
The nose the gap of stepping is inverted V-shape gap.
The bandage is elastic webbing.
Further include the head support base for being used to support human body head, the top of the head support base is formed with for accommodating
The head placed cavity of human body head.
The top of the head support base is formed with the first from left right septum and is distributed two pieces of postive stop baffles and is connected to this two pieces
Limit backboard between postive stop baffle, the head placed cavity is by the limit backboard and the common shape of two pieces of postive stop baffles
At.
The spacing of two pieces of postive stop baffles is more than the width of the coil case.
The coil case is placed between two pieces of postive stop baffles.
An air bag, two inflating airs are folded between each piece of postive stop baffle and the coil case
Capsule connects the same pump handle by gas tube.
Connector socket is provided on the head support base, the coil case is connected with by cable and is inserted with the wiring
The connection plug that seat matches, the cable are connected with the coil.
The coil case includes hard shell, and the circuit board being connected with the coil is fixed at the hard shell
It is interior, the coil case further include be connected with the hard shell can bending flexible shroud, the coil is placed in described
In flexible shroud.
The surface of the flexible shroud is provided with the deformation joint for assisting the flexible shroud bending deformation.
The advantage of the application is：
1, there are one noses corresponding with human body nose for setting on the coil case of this eye coil device of the application
The gap of stepping and two eye relief holes corresponding with human body eyes, while being connected on coil case for being tied
The strapped bandage for being scheduled on human body head.The nose the gap of stepping and eye relief hole being arranged on coil case can be to the noses of wearer
Portion and eye offer allow bit space, to make the face of wearer be adjacent to coil case medial surface as far as possible, and then enable coil
Enough as far as possible close to human body eye, to obtain the eyes image being more clear.Also, examinee is wearing the upper line
It encloses after shell (within the non-review time), ambient enviroment can be observed by eye relief hole, to mitigate its pressure.And bandage can
Coil case is firmly bundled in human head location, can not only prevent during the inspection process coil case from eye locations
It is detached from, and bandage can allow the coil in coil case better close to eye.
2, coil case is entirely not that hard material makes comprising hard shell and is connected with the hard shell
The flexible shroud that can be bent over, the circuit board being connected with preceding coil are fixedly installed in the hard shell, to using firmly
Mass shell body forms circuit board and protects, and prevents circuit board from being ruptured by bending.Preceding coil is arranged in the flexible shroud.When this
When coil case is worn on those who are investigated head, the flexible shroud of coil case can the bending according to the capitiform of examiner, in turn
Make coil case towards the medial surface face on those who are investigated head contact those who are investigated as much as possible, to make in coil case
Coil follows shell flexible shroud to bend together and the close those who are investigated head (especially eye) of large area, is further promoted
The imaging effect of coil.
Description of the drawings
Fig. 1 is the overall structure diagram of the embodiment of the present application magnetic resonance imaging eye coil device；
Fig. 2 is one of the partial structural diagram of the embodiment of the present application magnetic resonance imaging eye coil device；
Fig. 3 is the two of the partial structural diagram of the embodiment of the present application magnetic resonance imaging eye coil device；
Fig. 4 is the structural schematic diagram of the embodiment of the present application magnetic resonance imaging eye coil device coil.
Wherein：1- coil cases, 1a- hard shells, 1b- flexible shrouds, 1bb- deformation joints, 101- nose the gap of stepping,
102- eye relief holes, coil before 2-, 3- bandages, the heads 4- support base, 401- postive stop baffles, 402- limit backboard, 5- inflations
Air bag, 6- gas tubes, 7- pump handles, 8- connector sockets, 9- connection plugs, 10- cables, coil after 11-.
Specific implementation mode
The application is described in further detail below by specific implementation mode combination attached drawing.The application can be with a variety of
Different forms is realized, however it is not limited to embodiment described in the present embodiment.The purpose of detailed description below is provided
It is easy for becoming apparent from thorough explanation to present disclosure, the words of the wherein indicating positions such as upper and lower, left and right is only needle
To shown structure in respective figure for position.
However, those skilled in the art may be aware that one or more detail description can be by
Omit, or can also adopt with other methods, component or material.In some instances, some embodiments are not described
Or it is not described later in detail.
In addition, technical characteristic described herein, technical solution can also be in one or more embodiments arbitrarily to close
Suitable mode combines.For those skilled in the art, it should be readily appreciated that method related with embodiment provided herein
Step or operation order can also change.Therefore, any sequence in drawings and examples is merely illustrative purposes, not secretly
Show requirement in a certain order, is required unless expressly stated according to a certain sequence.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Fig. 1 to Fig. 4 shows a this preferred embodiment for magnetic resonance imaging eye coil device of the application.It is first
Shown in Fig. 1, this coil device of the present embodiment includes mainly a coil case 1, and coil is provided in coil case 1,
The shape of the coil case 1 is adapted with human body head, so that those who are investigated are worn on head.The coil in the present embodiment
Shell is substantially in half-circle-arc shape, is similar to eye mask.When practical application, which is worn on those who are investigated's
Head, the coil (RF receiving coil) in coil case 1 open magnetic resonance equipment to utilize institute just at eye locations
It states coil and magnetic resonance imaging is carried out to eye.
It, should be by the coil when carrying out magnetic resonance imaging to human body eye in order to obtain the eyes image being more clear
As far as possible close to human body eye.Based on this principle, the present embodiment has opened up one and human body nose phase on coil case 1
Corresponding nose the gap of stepping 101 and two eye relief holes corresponding with human body eye 102.
It can be appreciated that the nose the gap of stepping 101 and eye relief hole 102 that are arranged on coil case 1 can be to wearer'ss
Nose and eye offer allow bit space, to make the face of wearer be adjacent to 1 medial surface of coil case as far as possible, and then make line
Circle can be as far as possible close to human body eye.Also, examinee is after wearing the upper coil case 1 (in the non-review time
It is interior), ambient enviroment can be observed by eye relief hole 102, to mitigate its pressure.
In addition, the present embodiment be connected on coil case 1 for by its bundled fixed human body head bandage 3.It is real
Border prevents line during the inspection process in application, human head location can be firmly bundled in coil case 1 by the bandage 3
Shell 1 is enclosed to be detached from from eye locations.
Above-mentioned coil case 1 includes hard shell, and hard shell is specially PC materials, the circuit board being connected with above-mentioned coil
It is fixedly installed in hard shell 1a, is protected to be formed to circuit board using hard shell, prevent circuit board by bending
And it ruptures.Also, outlet hole is formed on hard shell, following cables 10 are drawn from the outlet hole, can so prevent cable 10
It is often bent and loosens in extraction location.
But, the coil case 1 in the present embodiment is entirely not that hard material makes, and further includes and the hard shell
Body be connected can bending EVA materials flexible shroud 1b, and the coil in the coil case 1 be arranged at (part be arranged
In or be all set to) in the flexible shroud.So designing is advantageous in that：When the coil case is worn on those who are investigated head
When, the flexible shroud of coil case can the bending according to the capitiform of examiner, and then make coil case towards those who are investigated head
Medial surface face contact those who are investigated as much as possible, to make the coil in coil case follow shell flexible shroud curved together
It rolls over and the close those who are investigated head (especially eye) of large area, further promotes the imaging effect of coil.
In order to improve the deformability of flexible shroud 1b, the present embodiment is additionally provided with four directly on the surface of flexible shroud 1b
The deformation joint 1bb of linear structure, deformation joint 1bb can auxiliary flexible sheath 1b bending deformation.
Certainly, we can not also use bandage fixed coil shell 1, and other mechanical equipments is used to ensure outside coil
Shell 1 is affixed to examined eye as far as possible.
For the ease of the molding of above-mentioned nose the gap of stepping 101, while nose the gap of stepping 101 is preferably pasted
Human body nose is closed, the nose the gap of stepping 101 in the present embodiment is an inverted V-shape gap, is arranged in 1 length side of coil case
To centre position.Two eye relief holes 102 are symmetricly set on the left and right sides of nose the gap of stepping 101, and the two
Eye relief hole 102 is the hole of approximate parallelogram.
Above-mentioned bandage 3 is an elastic webbing, and it is suitable for various head circumference sizes, and when wearing without beating it
Knot operation, it is very convenient.
It refers again to shown in Fig. 2 and Fig. 3, in order to fix the head of those who are investigated, prevents its head during imaging inspection
It generates mobile and leads to be imaged position offset or image quality variation, the present embodiment is also provided with one and is used to support human body head
Head support base 4, the top of the head support base 4 is formed with the head placed cavity for accommodating human body head, and above-mentioned
Coil case 1 with coil matches.
Specifically, the top of head support base 4 is formed with the first from left right septum and is distributed two pieces of postive stop baffles 401 and connects
Limit backboard 402 between this two pieces of postive stop baffles, above-mentioned head placed cavity is by aforementioned limit backboard 402 and two pieces aforementioned
Postive stop baffle 401 is collectively formed.
And the spacing of aforementioned two pieces of postive stop baffles 401 is more than the width of coil case 1, and enable coil case 1
It is placed between this two pieces of postive stop baffles 401.
With reference to shown in Fig. 3, in practical application, those who are investigated first wear coil case 1, it is then in lie low position and general
Head is placed in the head placed cavity of head support base 4, and coil case 1 is also just in aforementioned head placed cavity, every
One air bag 5 of equal sandwiched, there is two pieces of postive stop baffles 401 between one piece of postive stop baffle 401 and coil case 1, so share two
A air bag 5.Head support base 4 is realized using aforementioned air bag 5 and is positioned to the flexibility of coil case 1, and imaging is prevented to examine
Those who are investigated head is moved during looking into.
Two above-mentioned air bags 5 connect the same pump handle 7 by a bifurcated gas tube 6, when practical application only
This pump handle 7, which need to be squeezed, just can be inflated/prevent to two air bags 5, very convenient.
In the present embodiment, a connector socket 8 is provided on head support base 4, coil case 1 is connected with by cable 10
The connection plug 9 to match with aforementioned connector socket 8, aforementioned cable 10 are connected with the coil in coil case 1.Aforementioned wiring is inserted
The host machine part of seat 8 circuits connection NMR imaging equipment, connection plug 9 is inserted into connector socket 8 when practical application, to realize
Coil is connect with the circuit of NMR imaging device Host.
As it can be seen that the circuit of NMR imaging accesses head support base 4 first, then pass through aforementioned connector socket 8, connection plug 9
The coil in wear-type coil case 1 is led to cable 10.This is because head support base 4 is always in actual application
In fixed static state, and coil case 1 is kept in motion often.Circuit first accesses fixed head support base 4, then
It is led to using shorter cable and often needs to mobile coil case 1, it is more convenient to use and safe.In addition, being equipped with eye in it
The coil case 1 of portion's coil is connected by pluggable line construction with head support base 4 so that coil case 1 can be easily
It is detached with head support base 4, is convenient for the repair or replacement of coil case 1.
In addition, the present embodiment is also equipped with one group of coil in head support base 4, the application in order to express easily, according to
The difference of coil present position when imaging inspection, using those who are investigated head as reference, after the coil in head support base 4 is known as
Coil 11 (is in those who are investigated head rear), and coil 2 (is in those who are investigated head before the coil in coil case 1 is known as
Front).Connector socket 8 on head support base 4 is connect with the main system circuit of magnetic resonance imaging, and preceding coil 2 passes through cable 10
It is connect with the connection plug of 10 end of cable with 8 circuit of connector socket, coil 2 is connect with the circuit of main system before so realizing.
In imaging inspection, above-mentioned rear coil 11 and preceding coil 2 cooperate, and one immediately ahead of those who are investigated head
And very close to eye locations, another is in those who are investigated head dead astern, and the two mutual cooperation is provided commonly for being examined
The imaging of person's eye, compared to only with a coil --- it is clearly many that preceding coil carries out imaging.
In order to advanced optimize the imaging definition of eye, the preceding coil 2 in the present embodiment is made of four coil units,
This four coil units are arranged successively along arc direction, and in imaging inspection, and intermediate two coil units are located at
The front of human body eyes, and it is provided with public capacitance between the two intermediate coil units, with to the two coil units
It is decoupled.Other two coil unit (i.e. two coils of most end) and intermediate two coil arranged crosswises (partially overlapping),
Using the decoupling that partially overlaps.In other words：Before composition in four coil units of coil 2, except intermediate two adjacent coil lists
Except member, two coil units of arbitrary neighborhood are using the decoupling that partially overlaps；And it is adopted between intermediate two adjacent coil units
It is decoupled with public capacitance.Why intermediate two coils are decoupled and non-overlapping decoupling using public capacitance, are to minimize
The place of coil required occupancy between two, first can ensure that coil is narrow as possible at the bridge of the nose, and second ensures coil
Nose the gap of stepping 101 has sufficiently large space on shell 1.
Coil 11 is also made of four coil units afterwards, this four coil units are arranged successively also along arc direction, and
And two coil unit arranged crosswises (partially overlapping) of arbitrary neighborhood, i.e., it uses and partially overlaps between the coil unit of arbitrary neighborhood
Decoupling.And in imaging inspection, intermediate two coil units are located at the dead astern of human body eyes.
It is substantially distributed on same annulus before and after above-mentioned preceding coil 2 and rear coil 11.
It should be noted that the quantity of 11 center line coil unit of above-mentioned preceding coil 2 and rear coil is not limited to four,
Can be two, three or five etc., it is preferably more than two.And in preceding coil 2 preferably there are two coil units just
It is respectively at the front of those who are investigated's eyes.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is confined to these explanations.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of conceiving from the application, a number of simple deductions or replacements can also be made.
Claims (10)
1. a kind of eye coil device for magnetic resonance imaging, which is characterized in that including coil and and human body is arranged inside
The coil case (1) of the compatible wear-type in head offers nose corresponding with human body nose on the coil case (1)
The gap of stepping (101) and two eye relief holes (102) corresponding with human body eyes.
2. the eye coil device according to claim 1 for magnetic resonance imaging, which is characterized in that the coil case
(1) be connected on for by its bundled fixed human body head bandage (3).
3. the eye coil device according to claim 2 for magnetic resonance imaging, which is characterized in that the bandage (3)
For elastic webbing.
4. the eye coil device according to claim 1 for magnetic resonance imaging, which is characterized in that the nose is stepped down
Gap (101) is inverted V-shape gap.
5. the eye coil device according to claim 1 for magnetic resonance imaging, which is characterized in that further include for branch
The head support base (4) of human body head is supportted, the top of the head support base (4) is formed with the head for accommodating human body head
Placed cavity.
6. the eye coil device according to claim 5 for magnetic resonance imaging, which is characterized in that the head support
The top of seat (4) is formed with the first from left right septum and is distributed two pieces of postive stop baffles (401) and is connected between this two pieces of postive stop baffles
Limit backboard (402), the head placed cavity is common by the limit backboard (402) and two pieces of postive stop baffles (401)
It is formed.
7. the eye coil device according to claim 6 for magnetic resonance imaging, which is characterized in that the coil case
(1) it is placed between two pieces of postive stop baffles (401), each piece of postive stop baffle (401) and the coil case (1)
Between be folded with an air bag (5), two air bags (5) pass through gas tube (6) and connect the same inflatable hand
Handle (7).
8. the eye coil device according to claim 5 for magnetic resonance imaging, which is characterized in that the head support
It is provided with connector socket (8) on seat (4), the coil case (1) is connected with and the connector socket (8) phase by cable (10)
Matched connection plug (9), the cable (10) are connected with the coil.
9. the eye coil device according to claim 1 for magnetic resonance imaging, which is characterized in that the coil case
(1) include hard shell and be connected with the hard shell (1a) can bending flexible shroud (1b), with the coil phase
Circuit board even is fixed in the hard shell (1a), and the coil is placed in the flexible shroud (1b).
10. the eye coil device according to claim 9 for magnetic resonance imaging, which is characterized in that the flexible shield
The surface of set (1b) is provided with the deformation joint (1bb) for assisting the flexible shroud (1b) bending to deform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589720.1U CN207965114U (en) | 2017-11-24 | 2017-11-24 | A kind of eye coil device for magnetic resonance imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721589720.1U CN207965114U (en) | 2017-11-24 | 2017-11-24 | A kind of eye coil device for magnetic resonance imaging |
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| Publication Number | Publication Date |
|---|---|
| CN207965114U true CN207965114U (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721589720.1U Active CN207965114U (en) | 2017-11-24 | 2017-11-24 | A kind of eye coil device for magnetic resonance imaging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200369A (en) * | 2021-12-16 | 2022-03-18 | 四川大学华西医院 | Magnetic resonance imaging system and method integrating nerve regulation and control and radio frequency coil |
-
2017
- 2017-11-24 CN CN201721589720.1U patent/CN207965114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114200369A (en) * | 2021-12-16 | 2022-03-18 | 四川大学华西医院 | Magnetic resonance imaging system and method integrating nerve regulation and control and radio frequency coil |
| CN114200369B (en) * | 2021-12-16 | 2023-08-11 | 四川大学华西医院 | Magnetic resonance imaging system and method integrating nerve regulation and control and radio frequency coil |
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