CN109143129A - Magnetic resonance coil - Google Patents
Magnetic resonance coil Download PDFInfo
- Publication number
- CN109143129A CN109143129A CN201810800850.8A CN201810800850A CN109143129A CN 109143129 A CN109143129 A CN 109143129A CN 201810800850 A CN201810800850 A CN 201810800850A CN 109143129 A CN109143129 A CN 109143129A
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- China
- Prior art keywords
- driver
- magnetic resonance
- joint
- resonance coil
- detected
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Classifications
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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
-
- 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
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
Abstract
The present invention relates to a kind of magnetic resonance coils, for being scanned to patient joint to be detected, to obtain image of the joint to be detected under magnetic resonance imaging, comprising: shell offers the aperture for accommodating the joint to be detected on the shell；And fixed device, including the first driver and limit assembly, first driver is disposed in the housing, and the output shaft of first driver is connect with the limit assembly, and first driver is for driving the limit assembly to push against the joint to be detected.Magnetic resonance coil of the present invention pushes against joint to be detected by limit assembly, time saving and energy saving, and can be avoided staff and contact with the direct of patient skin, reduces the risk of cross-patient contamination, improves clinical examination efficiency.
Description
Technical field
The present invention relates to medical instruments, more particularly to a kind of magnetic resonance coil.
Background technique
Magnetic resonance coil is that magnetic resonance imaging (MRI, Magnetic Resonance Imaging) system is indispensable
Critical component, to obtain various dimensions, more contrast images, is mentioned for receiving magnetic resonance signal in magnetic resonance imaging for clinic
For organizational information abundant.Due to magnetic resonance examination sweep time is long, to motion sensitive the features such as, be strict with patient and checking
It must independently keep completely motionless in the process, otherwise will occur serious motion artifacts in scan image.
In order to improve the success rate of patient's magnetic resonance examination, traditional magnetic resonance coil is before inspection, by manually will be extra large
Silk floss is caught in patient joint to be checked, so that patient's arthrodesis to be checked.But the process in artificial clamping patient joint to be checked
Very complicated and time-consuming, the dynamics for squeezing joint to be checked is not easy to hold, and causes joint to be checked mechanically damaged, increases and suffers from
Person's pain, it is difficult to improve clinical examination efficiency, and staff needs the skin of constantly contact sponge sheet and each patient, suffers from
The hygienic issues such as person's cross-infection are also difficult to avoid that.
Summary of the invention
Based on this, it is necessary to aiming at the problem that conventional magnetic resonance coil checks low efficiency, provide a kind of magnetic resonance coil.
A kind of magnetic resonance coil, for being scanned to patient joint to be detected, to obtain the joint to be detected in magnetic
Image under resonance scan, comprising:
Shell offers the aperture for accommodating the joint to be detected on the shell；And
Fixed device, including the first driver and limit assembly, first driver is disposed in the housing, described
The output shaft of first driver is connect with the limit assembly, and first driver is for driving the limit assembly to push against institute
State joint to be detected.
The inner wall of the aperture offers the first accommodation groove in one of the embodiments, and first accommodation groove prolongs
The axis parallel in direction Yu the aperture is stretched, first driver is set in first accommodation groove, first driving
Device can drive the limit assembly to move to first accommodating towards the direction of the aperture out of described first accommodation groove
Outside slot, so that the limit assembly and the joint to be detected push against.
The quantity of first accommodation groove is multiple, the first accommodation groove described in two of them in one of the embodiments,
The two sides of the horizontal plane locating for the aperture center, first accommodation groove are equipped with edge far from the cell wall of the aperture side
The second accommodation groove of vertical direction, second accommodation groove be connected to first accommodation groove, and constitute " 7 " character form structure,
First driver is located at first accommodation groove close to one end of second accommodation groove, and the one of first driver
End is protruded into second accommodation groove；
The magnetic resonance coil further includes lifting device, and the lifting device is located in second accommodation groove, and with institute
One end connection that the first driver is located in second accommodation groove is stated, the lifting device can drive first driver
It moves back and forth along vertical direction.
The lifting device includes the first slide plate and the second driver in one of the embodiments, and described second holds
The cell wall of slot is set equipped with first sliding groove along vertical direction, first slide plate is connected in the first sliding groove, described
First driver is set to first slide plate on the side of first accommodation groove, and second driver is for driving institute
It states the first slide plate and is moved back and forth along the first sliding groove in vertical direction.
The limit assembly includes telescopic rod, fixed plate, the second slide plate and strut, institute in one of the embodiments,
The one end for stating telescopic rod is fixedly connected with the output shaft of first driver, and the fixed plate is set to the telescopic rod far from institute
State one end of the first driver, the fixed plate is set close to the side of the telescopic rod there are two second sliding slot, and two described the
Two sliding slots are respectively symmetrically set to the two sides of the telescopic rod, and second slide plate slides are set in the second sliding slot, the branch
The both ends of bar are hinged with the side wall of the telescopic rod and second slide plate respectively.
The limit assembly further includes locating piece in one of the embodiments, and the locating piece is set to the fixed plate
Close to the side of the telescopic rod, the telescopic rod is equipped with telescopic chute close to one end of the fixed plate, and the locating piece is worn
In the telescopic chute to be flexibly connected with the telescopic rod；And/or
The fixed plate is recessed concave arc structure far from the side of the telescopic rod；And/or
The periphery of the fixed plate is coated with one layer of elastic plastics；And/or
The limit assembly further includes elastic component, and the elastic component is set to one of the fixed plate far from the telescopic rod
Side.
The shell includes upper housing and lower case in one of the embodiments, the upper housing and the lower casing
Body is detachably connected, and the internal circuit of the upper housing and the internal circuit of the lower case are electrically connected, and the aperture is opened
On the upper housing and the lower case.
The magnetic resonance coil further includes sensing unit and control unit, the induction in one of the embodiments,
Unit is set to side of the limit assembly far from first driver, and the sensing unit is for obtaining the limit assembly
With the abutting force between the joint to be detected, described control unit includes on the shell and electric with the enclosure interior
Start unit, stop unit and the fine-adjusting unit that road is electrically connected, the start unit are used to start first driver,
The stop unit for shutting down first driver, the fine-adjusting unit for limit assembly described in manual actuation with it is described
Joint to be detected pushes against；
When the abutting force that the sensing unit obtains is greater than preset pressure threshold value, the stop unit is automatically turned off
First driver.
The magnetic resonance coil further includes the storage unit being disposed in the housing in one of the embodiments, described
Storage unit is used to store the scan image in the joint to be detected.
The magnetic resonance coil further includes maintenance unit in one of the embodiments, and the maintenance unit is for recording
The magnetic resonance coil scans the number in the joint to be detected；
When the number that the magnetic resonance coil scans the joint to be detected is greater than preset threshold, the maintenance unit hair
Pre-warning signal out.
Magnetic resonance coil provided by the invention has the advantages that
Before carrying out magnetic resonance imaging to patient joint to be detected, the first driver can drive limit assembly to wait for patient
Joint is detected to push against, it is time saving and energy saving relative to traditional artificial clamping joint to be detected, it is to be detected that artificial clamping can not only be alleviated
When joint due to dynamics is held uneven and bring is painful, and can be avoided staff and contacted with the direct of patient skin,
The risk for reducing cross-patient contamination improves clinical examination efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the magnetic resonance coil of an embodiment of the present invention；
Fig. 2 is the decomposition diagram of upper housing and lower case in Fig. 1；
Fig. 3 is the front view of Fig. 1；
Fig. 4 is the enlarged diagram of the first accommodation groove and the second accommodation groove in Fig. 2；
Fig. 5 is the enlarged diagram that device is fixed in Fig. 2；
Fig. 6 is the status diagram after the limit assembly in Fig. 5 is abutted with joint to be detected.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
Body embodiment purpose, it is not intended that in limitation the present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
As shown in Figures 1 and 2, the magnetic resonance coil 10 of an embodiment of the present invention, for patient joint to be detected (figure
Do not show) it is scanned, to obtain image of the joint to be detected under magnetic resonance imaging.Above-mentioned joint to be detected can with but do not limit
For the knee joint, head, swivel of hand (or wrist joint) of patient, shoulder joint, the magnetic resonance coil 10 of corresponding detection is knee joint line
Circle, head coil, hand line circle, shoulder joint coil.Specifically, in the present embodiment, above-mentioned joint to be detected is knee joint, above-mentioned
Magnetic resonance coil is knee joint coil.
The magnetic resonance coil 10 includes shell 100 and fixed device 200, is offered on shell 100 to be checked for accommodating
Survey the aperture 101 in joint.Fixed device 200 includes the first driver 210 and limit assembly 220, and the first driver 210 is set to
In shell 100, the output shaft of the first driver 210 is connect with limit assembly 220, and the first driver 210 can drive limit group
Part 220 pushes against the joint to be detected in aperture 101, so that joint to be detected will not shake in magnetic resonance imaging,
Promote the picture quality in joint to be detected under magnetic resonance imaging.Wherein, above-mentioned first driver 210 can be stepper motor or straight line
Motor.
In traditional knee joint coil, since the aperture of knee joint coil is usually narrow, patient puts knee joint
After the aperture for entering knee joint coil, staff is difficult to the gap between knee joint and shell and is encased inside sponge, general only with husky
The shank position of the outer patient of bag pad pressure knee joint coil, when patient's effusion of knee joint or swelling and pain, the operation of above-mentioned sandbag cushion pressure
Patient can be made more painful.In the present embodiment, with reference to Fig. 3, when magnetic resonance coil 10 of the invention is examined applied to knee joint
When looking into namely when magnetic resonance coil 10 of the invention is knee joint coil, fixed device 200 can be set to the left up and down of aperture 101
Right four positions drive the flexible of limit assembly 220 that can clamp kneed four up and down by the first driver 210
Position guarantees that knee joint will not shake in magnetic resonance imaging, improves image quality.
In traditional head coil, patient lies supine lies low, and head is placed in head coil, can use sponge clamping patient anatomical
To prevent patient or so from twisting at left and right sides of potential head cranium.Since magnetic resonance examination radio-frequency pulse sound is big, especially infant, meaning
Know unclear patient, be easy to get a fright after hearing radio-frequency pulse sound, restlessness, and then twist check point, leads to magnetic
Resonance checks failure.In the present embodiment, when magnetic resonance coil 10 of the invention, which is applied to head, to be checked, namely the present invention
Magnetic resonance coil 10 when being head coil, fixed device 200 can be set to the left and right sides of aperture 101 namely the left and right two of head
Side drives the flexible of limit assembly 220 that can clamp head two sides, to prevent head or so from putting by the first driver 210
It is dynamic.It should be noted that in order to weaken the RF pulse signal that patient is heard, it can be in the elastic component 260 in limit assembly 220
Noise-proof device (such as noise proot earplug) is set in (seeing below), noise-proof device is directly arranged in patient ear, has both played solid
Tailor-made use again can antinoise.
In the present embodiment, when magnetic resonance coil 10 of the invention is applied to swivel of hand (or wrist joint), Ye Jiben
When the magnetic resonance coil 10 of invention is hand line circle, since swivel of hand (or wrist joint) can be put with any angle, fixed dress
Four positions up and down of four positions up and down namely swivel of hand (or wrist joint) that 200 can be set to aperture 101 are set,
Flexible four up and down for can clamping swivel of hand (or wrist joint) of limit assembly 220 are driven by the first driver 210
Position guarantees that swivel of hand (wrist joint) will not shake in magnetic resonance imaging, improves image quality.
In the present embodiment, when magnetic resonance coil 10 of the invention is applied to shoulder joint namely magnetic of the invention is total
When the coil 10 that shakes is shoulder joint coil, since shoulder joint can only be laid flat, patient lies supine lies low so that shoulder joint is put into shoulder joint nodel line
In aperture 101 in circle, therefore fixed device 200 can be set to the upside of aperture 101 namely the upside of shoulder joint, to pass through
Flexible the pushing against shoulder joint downwards of first driver 210 driving limit assembly 220 is improved with inhibiting the respiratory movement of patient
Image quality.
It should be noted that magnetic resonance coil 10 of the invention is not limited to above-mentioned application environment, namely work as magnetic resonance coil
10 when being applied to other joints to be detected, can be set to fixed device 200 according to the feature adaptability in joint to be detected
Position corresponding with joint to be detected, quantity is adjustable, as long as joint to be detected can be pushed against i.e. by fixed device 200
It can.
For shell 100 for holding loaded securement device 200, the material of shell 100 can be the antimagnetic materials such as plastics or titanium alloy.Into
One step, as shown in Fig. 2, in the present embodiment, shell 100 includes upper housing 110 and lower case 120, and upper housing 110 is under
Shell 120 is detachably connected, and the internal circuit of upper housing 110 and the internal circuit of lower case 120 are electrically connected, and aperture 101 is opened
On upper housing 110 and lower case 120.In this way, being convenient for dismounting, cleaning and the storage of antimagnetic material.
Further, combined with Figure 1 and Figure 2, in the present embodiment, the inner wall of aperture 101 offers the first accommodation groove 102,
The extending direction of first accommodation groove 102 and the axis parallel of aperture 101, the first driver 210 are set to the first accommodation groove 102
Interior, the first driver 210 can drive limit assembly 220 to move to towards the direction of aperture 101 out of first accommodation groove 102
Outside one accommodation groove 102, so that limit assembly 220 and joint to be detected push against.In this way, can be pushed against meeting limit assembly 220
Under the premise of joint to be detected, limit assembly 220 can also be retracted in the first accommodation groove 102, so as to save aperture 101
Interior space.
Further, in conjunction with Fig. 2 and Fig. 4, in the present embodiment, magnetic resonance coil 10 further includes lifting device 300, and first
The quantity of accommodation groove 102 be it is multiple, the first accommodation groove of two of them 102 be set to 101 center of aperture locating for horizontal plane two sides,
That is the first accommodation groove 102 is set to the left and right sides in joint to be detected.On first cell wall of the accommodation groove 102 far from 101 side of aperture
Equipped with the second accommodation groove 103 along vertical direction, the second accommodation groove 103 is connected to the first accommodation groove 102, and constitutes " 7 " word
Shape structure.First driver 210 is located at the first accommodation groove 102 close to one end of the second accommodation groove 103, and the first driver 210
One end protrude into the second accommodation groove 103.Lifting device 300 is located in the second accommodation groove, and is located at the with the first driver 210
One end connection in two accommodation grooves 103, lifting device 300 can drive the first driver 210 to move back and forth along vertical direction.
In this way, by the movement of the first driver 210 in the vertical direction, the limit assembly of the adjustable driving of first driver 210
220 height in the vertical direction, so that limit assembly 220 can be pushed against from the joint to be detected of different patients.
Specifically, in the present embodiment, lifting device 300 includes that the first slide plate 310 and the second driver (are schemed not
Show), the cell wall of the second accommodation groove 103 is equipped with first sliding groove 104 along vertical direction, and the first slide plate 310 is connected in first
In sliding slot 104, the first driver 210 is set to the first slide plate 310 on the side of the first accommodation groove 102, and the second driver is used
It is moved back and forth along first sliding groove 104 in vertical direction in the first slide plate 310 of driving.Wherein, above-mentioned second driver can be
Stepper motor or linear motor.
Further, in conjunction with Fig. 5 and Fig. 6, in the present embodiment, limit assembly 220 includes telescopic rod 221, fixed plate
222, the second slide plate 223 and strut 224.One end of telescopic rod 221 is fixedly connected with the output shaft of the first driver 210.Gu
Fixed board 222 is set to the one end of telescopic rod 221 far from the first driver 210, and fixed plate 222 is equipped with close to the side of telescopic rod 221
Two second sliding slots 2221, two second sliding slots 2221 are respectively symmetrically set to the two sides of telescopic rod 221, the sliding of the second slide plate 223
In second sliding slot 2221.The both ends of strut 224 are hinged with the side wall of telescopic rod 221 and the second slide plate 223 respectively.
In above-mentioned magnetic resonance coil 10, before magnetic resonance imaging is done in joint to be detected, first joint to be detected is put into out
In hole 101, then start the first driver 210, the first driver 210 drives telescopic rod 221 towards to be checked by its output shaft
Survey the side movement in joint.It is slided at this point, the movement of telescopic rod 221 can push against second with the strut 224 of 212 two sides of telescopic rod
Plate 223 along second sliding slot 2221 away from telescopic rod 212 direction slide, while fixed plate 222 move closer to it is to be detected
Joint namely limit group valence 220 by Fig. 5 state change to Fig. 6 state.Fixed dress at left and right sides of joint to be detected
When setting 224 the second slide plate of pushing person 223 of strut in 200 and sliding into certain distance, 222 energy of fixed plate of joint two sides to be detected
Joint to be detected is enough clamped, so that joint to be detected can be firmly secured in aperture 101, so as to subsequent magnetic resonance
Scanning.Wherein, above-mentioned strut 224 can make fixed plate 222 right the power of the application of fixed plate 222 by the second slide plate 223
The power distribution that joint to be detected applies is more uniform.
Further, in the present embodiment, limit assembly 220 further includes locating piece 225, and locating piece 225 is set to fixed plate
222 are equipped with telescopic chute (not shown), locating piece close to one end of fixed plate 222 close to the side of telescopic rod 221, telescopic rod 221
225 are arranged in telescopic chute to be flexibly connected with telescopic rod 221.In this way, being transported in telescopic rod 221 towards the direction of fixed plate 222
It, can be insufficient and make the generation of fixed plate 222 to avoid the intensity of strut 224 by the cooperation of locating piece 225 and telescopic chute when dynamic
It shakes, increases the stable connection of telescopic rod 221 and fixed plate 222.Wherein, the material of above-mentioned telescopic rod 221 can for plastics or
The antimagnetic material such as titanium alloy.
Further, in the present embodiment, fixed plate 222 is recessed concave arcuation knot far from the side of telescopic rod 221
Structure.In this way, the fixed plate 222 of concave arc structure can with the joint to be detected of perfect matching patient, i.e., increase fixed plate 222 with
The contact area in the joint to be detected of patient, to increase abutting force, to enhance the stability after arthrodesis to be detected.
Further, in the present embodiment, the periphery of fixed plate 222 can coat one layer of elastic plastics, it will be understood that
In other embodiment, limit assembly 220 further includes elastic component 226, and elastic component 226 is set to fixed plate 222 far from telescopic rod 221
Side.In this way, the contact by elastic component 226 with patient skin can increase patient's when joint to be detected is extruded
Comfort avoids discomfort.Wherein, above-mentioned elastic component 226 can be sponge, rubber or air bag.Specifically, in present embodiment
In, above-mentioned elastic component 226 is sponge.
Further, in the present embodiment, magnetic resonance coil 10 further includes sensing unit and control unit, sensing unit
Side set on limit assembly 220 far from the first driver, sensing unit for obtain limit assembly 220 and joint to be detected it
Between abutting force.Specifically, in the present embodiment, sensing unit is a pressure sensor.Control unit includes being set to shell
Start unit, stop unit and the fine-adjusting unit being electrically connected on 100 and with 100 internal circuit of shell, start unit are used for
Start the first driver 210, stop unit is used for manual actuation limit assembly for shutting down the first driver 210, fine-adjusting unit
220 push against with joint to be detected.
In above-mentioned magnetic resonance coil 10, after magnetic resonance coil 10 accesses magnetic resonance system energization, start unit is triggered, is opened
Moving cell transmission telecommunications number is to internal circuit, to drive the first driver 210 that position-limiting unit is driven to push against joint to be detected.Together
When, sensing unit obtains the abutting force between limit assembly 220 and joint to be detected, and feeds back to internal circuitry.Work as sense
When the abutting force for answering unit to obtain is greater than systemic presupposition pressure threshold, stop unit is automatically turned off the first driver 210.Work as induction
It, can also if the hydrops articuli that patient is compressed is serious when the abutting force that unit obtains is less than or equal to the pressure threshold of systemic presupposition
By triggering stop unit manually to shut down the first driver 210.Meanwhile staff can operate fine-adjusting unit, limit
Under the premise of component 220 can push against patient joint to be detected, to adapt to patient joint to be detected.Relative to traditional artificial clamping
For patient joint to be detected (such as mode of artificial plug sponge), it can mitigate and patient pass to be detected is compressed by fixed device
Feeling of pain brought by saving.
Further, in the present embodiment, magnetic resonance coil 10 further includes the storage unit in shell 100, storage
Unit is used to store the scan image in joint to be detected.
In above-mentioned magnetic resonance coil 10, after the completion of 10 inspection task of magnetic resonance coil, depositing in magnetic resonance coil 10
Storage device gets off the Imagery Data Recording in checked joint, stores to cloud or other platforms, is used for big data analysis.Together
When, the diagnostic result that big data analysis is obtained is back to corresponding patient, refers to for diagnostician.It should be noted that traditional
All data of hospital be not added and be taxonomically uploaded to public network, and magnetic resonance coil 10 of the invention will can be detected individually
Same arthrosis image carry out data storage, to distinguish other types of arthrosis image information.
Further, in the present embodiment, magnetic resonance coil 10 further includes maintenance unit, and maintenance unit is total for recording magnetic
Vibration coil 10 scans the number in joint to be detected.When the number that magnetic resonance coil 10 scans joint to be detected is greater than systemic presupposition threshold
When value, maintenance unit is issued warning signal, so that staff can in time maintain magnetic resonance coil 10, avoids work
Personnel adjust fixed form repeatedly, improve clinical examination efficiency.
In above-mentioned magnetic resonance coil 10, magnetic resonance coil 10 is every to complete primary inspection task, and maintenance unit adds up automatically
Primary to check number, when cumulative inspection number is greater than default clearing times threshold value, sending need to clear up information to staff.
Similarly, when cumulative inspection number is greater than default maintenance threshold value, sending needs service information to staff.Similarly, coil can
The working frequency in some cycles (continuous 1 day, 3 days, 10 days, 1 year etc.) is recorded, working frequency is too high to will lead to magnetic resonance line
Circle 10 cannot maintain well, and when working frequency is greater than predeterminated frequency threshold value, sending needs emm message to staff.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of magnetic resonance coil, total in magnetic to obtain the joint to be detected for being scanned to patient joint to be detected
Image under vibration scanning characterized by comprising
Shell offers the aperture for accommodating the joint to be detected on the shell；And
Fixed device, including the first driver and limit assembly, first driver are disposed in the housing, and described first
The output shaft of driver is connect with the limit assembly, and first driver is located at institute for driving the limit assembly to push against
State the joint to be detected in aperture.
2. magnetic resonance coil according to claim 1, which is characterized in that the inner wall of the aperture offers the first accommodating
Slot, the extending direction of first accommodation groove and the axis parallel of the aperture, first driver are set to described first
In accommodation groove, first driver can drive the limit assembly out of described first accommodation groove towards the side of the aperture
To moving to outside first accommodation groove, so that the limit assembly and the joint to be detected push against.
3. magnetic resonance coil according to claim 2, which is characterized in that the quantity of first accommodation groove be it is multiple,
In two first accommodation grooves be set to the two sides of horizontal plane locating for the aperture center, first accommodation groove is opened far from described
The cell wall of hole side is equipped with the second accommodation groove along vertical direction, and second accommodation groove and first accommodation groove connect
It is logical, and " 7 " character form structure is constituted, first driver is located at first accommodation groove close to the one of second accommodation groove
End, and one end of first driver is protruded into second accommodation groove；
The magnetic resonance coil further includes lifting device, and the lifting device is located in second accommodation groove, and with described
One driver be located at one end in second accommodation groove connection, the lifting device can drive first driver along
Vertical direction moves back and forth.
4. magnetic resonance coil according to claim 3, which is characterized in that the lifting device includes the first slide plate and the
Two drivers, the cell wall of second accommodation groove are equipped with first sliding groove along vertical direction, and first slide plate is connected in
In the first sliding groove, first driver is set to first slide plate on the side of first accommodation groove, described
Second driver is for driving first slide plate to move back and forth along the first sliding groove in vertical direction.
5. magnetic resonance coil according to claim 1, which is characterized in that the limit assembly include telescopic rod, fixed plate,
Second slide plate and strut, one end of the telescopic rod are fixedly connected with the output shaft of first driver, the fixed plate
One end set on the telescopic rod far from first driver, there are two the fixed plate is set close to the side of the telescopic rod
Second sliding slot, two second sliding slots are respectively symmetrically set to the two sides of the telescopic rod, and second slide plate slides are set to institute
It states in second sliding slot, the both ends of the strut are hinged with the side wall of the telescopic rod and second slide plate respectively.
6. magnetic resonance coil according to claim 5, which is characterized in that the limit assembly further includes locating piece, described
Locating piece is set to the fixed plate close to the side of the telescopic rod, and the telescopic rod is equipped with close to one end of the fixed plate to be stretched
Contracting slot, the locating piece are arranged in the telescopic chute to be flexibly connected with the telescopic rod；And/or
The fixed plate is recessed concave arc structure far from the side of the telescopic rod；And/or
The periphery of the fixed plate is coated with one layer of elastic plastics；And/or
The limit assembly further includes elastic component, and the elastic component is set to side of the fixed plate far from the telescopic rod.
7. magnetic resonance coil according to claim 1, which is characterized in that the shell includes upper housing and lower case,
The upper housing is detachably connected with the lower case, and the internal circuit of the internal circuit of the upper housing and the lower case
It is electrically connected, the aperture is opened in the upper housing and the lower case.
8. magnetic resonance coil according to claim 1, which is characterized in that the magnetic resonance coil further include sensing unit with
And control unit, the sensing unit are set to side of the limit assembly far from first driver, the sensing unit
For obtaining the abutting force between the limit assembly and the joint to be detected, described control unit includes being set to the shell
Start unit, stop unit and fine-adjusting unit upper and be electrically connected with the enclosure interior circuit, the start unit are used
In starting first driver, the stop unit is for shutting down first driver, and the fine-adjusting unit is for manual
The limit assembly and the joint to be detected is driven to push against；
When the abutting force that the sensing unit obtains is greater than preset pressure threshold value, the stop unit is automatically turned off described
First driver.
9. magnetic resonance coil according to claim 1, which is characterized in that the magnetic resonance coil further includes being set to the shell
Intracorporal storage unit, the storage unit are used to store the scan image in the joint to be detected.
10. magnetic resonance coil according to claim 1, which is characterized in that the magnetic resonance coil further includes maintenance unit,
The maintenance unit is for recording the number that the magnetic resonance coil scans the joint to be detected；
When the number that the magnetic resonance coil scans the joint to be detected is greater than preset threshold, the maintenance unit issues pre-
Alert signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800850.8A CN109143129B (en) | 2018-07-20 | 2018-07-20 | Magnetic resonance coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800850.8A CN109143129B (en) | 2018-07-20 | 2018-07-20 | Magnetic resonance coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109143129A true CN109143129A (en) | 2019-01-04 |
| CN109143129B CN109143129B (en) | 2021-10-22 |
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| CN101089647A (en) * | 2006-06-12 | 2007-12-19 | 西门子公司 | Head coil arrangement for a magnetic resonance device |
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| CN105997077A (en) * | 2016-06-16 | 2016-10-12 | 廖云杰 | Auxiliary device for knee-joint dynamic magnetic resonance imaging |
| CN206995267U (en) * | 2017-02-20 | 2018-02-13 | 郑州大学第一附属医院 | A kind of novel nuclear magnetic resonance examination fixed equipment |
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| CN1489975A (en) * | 2002-09-30 | 2004-04-21 | 西门子公司 | Head fixer for imaging medical checking apparatus and medical checking apparatus |
| CN2642036Y (en) * | 2003-09-23 | 2004-09-22 | 程敬亮 | Laboratory animal head fixing support |
| CN101089647A (en) * | 2006-06-12 | 2007-12-19 | 西门子公司 | Head coil arrangement for a magnetic resonance device |
| US20110226260A1 (en) * | 2010-03-18 | 2011-09-22 | Hanns Eder | Neurosurgical head holder in combination with a local coil |
| CN103576110A (en) * | 2012-07-19 | 2014-02-12 | 西门子公司 | Control of a pressure of a local coil in relation to an object under examination |
| CN204363988U (en) * | 2015-01-07 | 2015-06-03 | 南阳医学高等专科学校第一附属医院 | A kind of Novel nuclear magnetic resonance examination fixing device |
| CN105997077A (en) * | 2016-06-16 | 2016-10-12 | 廖云杰 | Auxiliary device for knee-joint dynamic magnetic resonance imaging |
| CN206995267U (en) * | 2017-02-20 | 2018-02-13 | 郑州大学第一附属医院 | A kind of novel nuclear magnetic resonance examination fixed equipment |
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| CN109143129B (en) | 2021-10-22 |
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