CN110200630A - Coil brace and MR imaging apparatus for magnetic resonance imaging - Google Patents
Coil brace and MR imaging apparatus for magnetic resonance imaging Download PDFInfo
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- CN110200630A CN110200630A CN201910440830.9A CN201910440830A CN110200630A CN 110200630 A CN110200630 A CN 110200630A CN 201910440830 A CN201910440830 A CN 201910440830A CN 110200630 A CN110200630 A CN 110200630A
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- gear
- rack
- pallet
- coil
- magnetic resonance
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The present invention relates to a kind of coil braces and MR imaging apparatus for magnetic resonance imaging, including support frame, pallet and height adjustment device for carrying coil, the height adjustment device includes transmission mechanism and connection component, the transmission mechanism is set on the support frame, the connection component is connect with the transmission mechanism and the pallet respectively, and the transmission mechanism cooperates the connection component for adjusting height of the pallet relative to the support frame.The above-mentioned coil brace for magnetic resonance imaging, including support frame, pallet and height adjustment device, coil is carried on pallet, the positioning of coil is realized relative to the height of support frame by the adjustable pallet of height adjustment device, deformation occurs without regard to scanned position is made close to the position to be scanned of patient as much as possible to realize coil.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly to a kind of coil brace and magnetic for magnetic resonance imaging
Resonance image-forming equipment.
Background technique
The information content that magnetic resonance imaging (MRI, Magnetic Resonance Imaging) provides is far longer than medicine shadow
As other imaging techniques in learning, there is apparent superiority for the diagnosis of disease, for example be applied to magnetic resonance radiotherapy.Magnetic is total
Vibration radiotherapy is the radiotherapy of guide of magnetic resonant image.Radiotherapy has been introduced into the accurate radiotherapy epoch, and accurate radiotherapy is to putting
The Radiation Therapy Simulation location requirement treated under simulator locating especially magnetic resonance is growing.Radiotherapy needs to be accurately positioned the position of tumour
It sets, it, can be because the reasons such as mobile of contact of the coil with human body, human body in coil, lead to tumour during magnetic resonance imaging
It is offset in the relative position of human body, has extreme influence for the accurate positioning of tumour, it is therefore desirable to paste coil as much as possible
The scanned position of nearly patient is unlikely to constitute deformation to scanned position again, and is traditionally used for the coil brace knot of magnetic resonance imaging
Structure is simply difficult to realize the target.
Summary of the invention
Based on this, it is necessary to be difficult to realize make coil close to patient for the coil brace for being traditionally used for magnetic resonance imaging
Scanned position be unlikely to the problem of deformation is constituted to scanned position again, provide a kind of coil brace for magnetic resonance radiotherapy and
MR imaging apparatus.
A kind of coil brace for magnetic resonance imaging, pallet and height including support frame, for carrying coil
Regulating device, the height adjustment device include transmission mechanism and connection component, and the transmission mechanism is set to the support
On skeleton, the connection component is connect with the transmission mechanism and the pallet respectively, and the transmission mechanism cooperates the connection
Component is for adjusting height of the pallet relative to the support frame.
The above-mentioned coil brace for magnetic resonance imaging, including support frame, pallet and height adjustment device, on pallet
Coil is carried, realizes the positioning of coil relative to the height of support frame by the adjustable pallet of height adjustment device,
To realize coil, close to the position to be scanned of patient, without regard to scanned position is made, deformation occurs as much as possible.
The support frame includes the arched frame at both ends in a longitudinal direction, the longitudinal direction in one of the embodiments,
Direction is the short transverse of patient, and the arched frame is respectively provided with the height adjustment device, is respectively used to adjust the pallet
The height of opposite end in the longitudinal direction.
The transmission mechanism is gear drive, including rotary shaft, gear and tooth in one of the embodiments,
Item, the gear are fixed in the rotary shaft, and the rack gear is engaged with the gear, and the rotary shaft is for driving the tooth
Wheel rotation is so that the rack movement.
One end of the rotary shaft is equipped with the adjusting knob for user's operation in one of the embodiments,.
The height adjustment device further includes gear-box and bearing, the gear-box setting in one of the embodiments,
In on the arched frame, the bearing, the rotary shaft and the gear are set in the gear-box, and the bearing is used for
Cooperate the rotation of the rotary shaft in the gear-box, the opposite both ends of the gear-box are equipped with what the confession rack gear passed through
Hole.
The height adjustment device further includes the locking machine being set in the gear-box in one of the embodiments,
Structure, the retaining mechanism include braked wheel and locking assembly, and the rotary shaft is fixed with the braked wheel, the locking assembly and
The braked wheel cooperation is to provide so that the restraining force for keeping the rotary shaft static.
In one of the embodiments, the locking assembly include telescopic pin, adjustable column and be located at the telescopic pin and
Elastic component between the adjustable column, the adjustable column be used for the decrement by controlling the elastic component with adjust it is described about
The size of beam force.
Be equipped with threaded hole in the gear-box in one of the embodiments, the surface of the adjustable column be equipped with it is described
The external screw thread that the threaded hole of gear-box matches.
The arched frame is equipped with sliding slot in one of the embodiments, and the rack gear moves in the sliding slot.
The rack gear includes the first rack gear and the second rack gear in one of the embodiments, and the connection component includes the
One connection component and the second connection component, one end of first connection component are connect with first rack gear, and described second connects
One end of connected components is connect with second rack gear, the first connection component other end and the second connection component other end
It is connect respectively with the both ends of the pallet in a lateral direction, the transverse direction is the direction vertical with the longitudinal direction.
First rack gear and second rack gear are respectively arranged at the opposite of the gear in one of the embodiments,
Both ends so that first rack gear and second rack gear are moved along different directions.
The height adjustment device further includes rotating mechanism and crossbeam in one of the embodiments, and the one of the crossbeam
Side is flexibly connected with the connection component, and the another side of the crossbeam is connect with the rotating mechanism, and the rotating mechanism is also
It is flexibly connected with the pallet, the rotating mechanism is for adjusting the tilt angle of the pallet in the longitudinal direction, institute
State the short transverse that longitudinal direction is patient.
The rotating mechanism includes loose-leaf, the first pin shaft and the first locking member, the work in one of the embodiments,
One end of page is connect with the crossbeam, and the other end of the loose-leaf and first pin shaft are flexibly connected, first locking member
For fixing first pin shaft and the pallet.
The pallet includes tray rack, width adjusting device and the tray rack both ends in one of the embodiments,
The first hook rack and the second hook rack, first hook rack and second hook rack are described for fixing the coil
Width adjusting device is respectively arranged between first hook rack and the tray rack and second hook rack and described
Between tray rack, the inclination angle of the tray rack is respectively relative to for adjusting first hook rack and second hook rack
Degree.
The width adjusting device includes bar and the second locking member in one of the embodiments, and described first hangs
Hook housing and second hook rack are rotated rotating around corresponding bar to adjust the tilt angle relative to the tray rack, and are led to
It crosses second locking member and fixes its angle.
The transmission mechanism is chain wheel driving mechanism, including rotary shaft, sprocket wheel and chain in one of the embodiments,
Item, the sprocket wheel are fixed in the rotary shaft, and the chain and the sprocket engagement, the rotary shaft is for driving the chain
Wheel rotation is so that the chain movement.
In one of the embodiments, the transmission mechanism be pulley transmission mechanism, including rotary shaft, belt pulley and
Belt, the belt pulley are fixed in the rotary shaft, and the belt is set on the belt pulley, and the rotary shaft is used for band
The pulley rotation is moved so that the belt movement.
A kind of MR imaging apparatus exists including scanner, coil and the hospital bed coupled with the scanner, feature
In further including the coil brace for magnetic resonance imaging, the coil is mounted on the coil brace, and the coil brace is set
It sets on the hospital bed, the scanner has cavity, and the hospital bed can be moved into or remove the cavity.
Detailed description of the invention
Fig. 1 is the standing when coil brace in terms of a direction for magnetic resonance imaging in an embodiment carries coil
Body figure.
When Fig. 2 is that the coil brace in terms of another direction for magnetic resonance imaging in Fig. 1 embodiment carries coil
Perspective view.
Fig. 3 carries top view when coil for the coil brace for magnetic resonance imaging in an embodiment.
Fig. 4 carries left view when coil for the coil brace for magnetic resonance imaging in Fig. 3 embodiment.
Fig. 5 is the positional relationship between the coil brace and bed board, patient for magnetic resonance imaging in an embodiment
Top view.
Fig. 6 is the positional relationship between the coil brace and bed board, patient for magnetic resonance imaging in Fig. 5 embodiment
Front view.
Fig. 7 is the positional relationship between the coil brace and bed board, patient for magnetic resonance imaging in another embodiment
Front view.
Fig. 8 is the left view of the coil brace for magnetic resonance imaging in an embodiment.
Fig. 9 is the front view of the coil brace for magnetic resonance imaging in an embodiment.
Figure 10 is the top view of the coil brace for magnetic resonance imaging in an embodiment.
Figure 11 is the top view of the transmission mechanism in an embodiment.
Figure 12 is the schematic diagram inside the gear-box in an embodiment.
Figure 13 is the cross-sectional view along the direction AA of the transmission mechanism in Figure 11 embodiment.
Figure 14 is the cross-sectional view along the direction BB of the transmission mechanism in Figure 11 embodiment.
Figure 15 is the cross-sectional view of the retaining mechanism in an embodiment.
Figure 16 is the easy top view of the coil brace for magnetic resonance imaging in an embodiment.
Figure 17 is cross-sectional view of the coil brace in Figure 16 embodiment along the direction CC.
Figure 18 is the top view of the pallet in an embodiment.
Figure 19 is the left view of the pallet in Figure 18 embodiment.
Figure 20 is the cross-sectional view of the left view of the pallet in Figure 18 embodiment.
Figure 21 is the enlarged drawing in the region I in Figure 20 embodiment.
Figure 22 is the schematic diagram when accommodation space of pallet in Figure 20 embodiment is wider.
Figure 23 is the schematic diagram when accommodation space of pallet in Figure 20 embodiment is relatively narrow.
Figure 24 is the enlarged drawing in the region II in Figure 20 embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
In the description of the present application, it is to be understood that term " center ", " transverse direction ", "upper", "lower" "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner" and "outside" is side based on the figure
Position or positional relationship are merely for convenience of description the application and simplify description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.This
Outside, it should be noted that when element is referred to as " being formed on another element ", it can be directly connected on another element or
Person may be simultaneously present centering elements.When an element is considered as " connection " another element, it be can be directly connected to separately
One element exists simultaneously centering elements.On the contrary, there is no centres when element is referred to as " directly existing " another element "upper"
Element.
Magnetic resonance imaging (MRI, Magnetic Resonance Imaging) technology can directly make cross section, sagittal
The body tomographic image in face, coronal-plane and various inclined-planes has become one of the important tool of medical clinic applications and research, especially
The positioning of patient's body tumour when applied to radiotherapy.MRI system emits electromagnetic wave to tissue by radio-frequency coil
Excited, generate resonance signal in human body group, be received coil reception, wherein some coils both can be used as transmitting coil or
It can be used as receiving coil, be then fed into computer system and presented, therefore radio-frequency coil (hereinafter referred to as coil) is imaging
One critical elements of system, the positioning of coil play the role of image quality very important, directly affect signal noise ratio (snr) of image.This
Application provides a kind of coil brace for magnetic resonance imaging, the fixation for realizing coil relative to patient scan position, with
Coil is set to be unlikely to cause the deformation of scanned position again close to the position to be scanned of patient, to obtain patient's
The more accurate magnetic resonance image at position to be scanned.
For the clearly succinct structure of description the application coil brace, the application in the description of the embodiments below, it is unified with
The short transverse of patient is as longitudinal direction, and perpendicular direction is as transverse direction.
In one embodiment, referring to Fig. 1 to Fig. 4, a kind of coil brace (hereinafter referred to as coil branch for magnetic resonance imaging
Frame) 10 include support frame 20, pallet 30 and height adjustment device 40.Wherein, support frame 20 includes in a longitudinal direction
The arched frame 210 at opposite both ends and the connection frame 220 at both ends opposite in a lateral direction, are formed with an accommodation space.
Referring to Fig. 5, patient lies low on bed board, and support frame 20 is supported on bed board or is fixed on bed board, so that support frame
20 support construction as entire coil brace 10, and the position to be scanned of patient is located at the receiving sky of the formation of support frame 20
In.Pallet 30 carries coil 90 between patient and support frame 20 thereon, i.e., pallet 30, carry on pallet 30
Coil 90 and patient be respectively positioned on support frame 20 formation accommodation space in.Height adjustment device 40 is for hanging pallet 30
It hangs in the distance between the position to be scanned of the coil 90 and patient that are carried on the lower section of support frame 20 and adjusting tray 30, i.e.,
Realize the positioning of coil 90.
In the present embodiment, the arched frame 210 of support frame 20 is respectively provided with height adjustment device 40, is respectively used to adjust
Height of the opposite both ends of pallet 30 relative to support frame 20 in a longitudinal direction.Wherein, the coil carried on pallet 30
90 can be one, be also possible to it is multiple, when the coil 90 carried thereon only one when, height adjustment on arched frame 210
Device 40 be respectively used between the position to be scanned for adjusting the opposite both ends and patient of the coil 90 in a longitudinal direction away from
From when multiple coils 90 are distributed in a longitudinal direction, the height adjustment device 40 on arched frame 210 is respectively used to adjust not
With coil 90 in a longitudinal direction respectively the distance between with the position to be scanned of patient.Height adjustment on arched frame 210
The height at the opposite both ends of the adjustable pallet 30 of device 40 in a longitudinal direction is identical, and also adjustable pallet 30 is in longitudinal direction
The height at the opposite both ends on direction is different, the scanned position of the height and position view patient at both ends in a longitudinal direction of pallet 30
Depending on.For example, with reference to Fig. 6, when the height that scanned position is thoracic cavity and its scanned position in a longitudinal direction is consistent, arched frame
The height that height adjustment device 40 on 210 distinguishes the opposite both ends of adjusting tray 30 in a longitudinal direction is identical.In another example
Referring to Fig. 7, when scanned position is patient thigh, height in a longitudinal direction is inconsistent, the height tune on arched frame 210
The height that regulating device 40 distinguishes the opposite both ends in a longitudinal direction of adjusting tray 30 is different, i.e. height adjustment device 40 can be with
The height at the both ends of adjusting tray 30 in a longitudinal direction is respectively to adapt to the height change of scanned position in a longitudinal direction.
For above-mentioned coil brace 10 when positioning to coil 90, support frame 20 is fixed relative to bed board, passes through
Adjusting height adjustment device 40 may be implemented the height difference at the both ends opposite in a longitudinal direction of pallet 30, make to hold on pallet 30
The height of the coil 90 of load in a longitudinal direction is different, has obvious difference in height to match patient thigh, pregnant woman's lower abdomen and part
Position, so that coil 90 be made more to be unlikely to make scanned position close to the position to be scanned of patient again, deformation occurs, formation
The signal-to-noise ratio of magnetic resonance image is higher, is particularly advantageous to the medicine that such as magnetic resonance radiotherapy needs to be accurately positioned knub position and examines
It is disconnected.In the present embodiment, the type of the coil 90 carried on pallet 30 is not specifically limited, coil 90 can be head coil,
Body coil, lower main pole winding etc., are also possible to the combination of these coil types.
In the present embodiment, referring to Fig. 8 to Figure 10, height adjustment device 40 includes transmission mechanism 410 and connection component
420.Transmission mechanism 410 is set on the arched frame 210 of support frame 20.Connection component 420 respectively with transmission mechanism 410 and support
Disk 30 connects, by 410 mating connection component 420 of transmission mechanism for adjusting tray 30 in a longitudinal direction relative to support rib
The height of frame 20.It is by the 410 mating connection component 420 of transmission mechanism on the opposite both sides of the support frame 20 on longitudinal direction
Height of the adjusting tray 30 at the opposite both ends of longitudinal direction relative to support frame 20 can be distinguished.
In the first embodiment, transmission mechanism 410 is gear drive.Referring to Figure 11 to Figure 14, gear drive
Including rotary shaft 411, gear 412 and rack gear 414, sliding block (not shown) is additionally provided in the end of rack gear 414.In the present embodiment
In, height adjustment device 40 further includes gear-box 415 and bearing 416.Gear-box 415 is set on arched frame 210, bearing 416,
Rotary shaft 411 and gear 412 are all set in gear-box 415.Gear-box 415 to the component to set within it play waterproof,
Dust-proof equal protective effects, avoid these components exposed outside, and more beautiful.Bearing 416 is used to cooperate rotation in gear-box 415
The rotation of shaft 411, gear 412 are fixed in rotary shaft 411, and rack gear 414 is engaged with gear 412, when rotary shaft 411 rotates
Energy band moving gear 412 rotates so that rack gear 414 moves.Wherein, gear 412 and rotary shaft 411 can be it is integrally formed can not
Detaching structure, gear 412 and rotary shaft 411 can also be fixed by fasteners such as circlip, fastening screw, bayonet lock, keys or mistake
It is full of and cooperates fixation etc..In the present embodiment, referring to Fig. 8, the opposite both ends of gear-box 415 are additionally provided with to be passed through for rack gear 414
Hole (not shown), arched frame 210 are equipped with the sliding slot 212 for accommodating rack gear 414, are pierced by part rack gear 414 of gear-box 415
In in the sliding slot 212 of arched frame 210, rack gear 414 moves in sliding slot 414 with movable slider, and sliding block is connect with connection component 420,
The movement that connection component 420 is driven by the movement of rack gear 414, thus height of the adjusting tray 30 relative to support frame 20.
In the present embodiment, referring to 1 and Figure 11, the adjusting knob for user's operation also is equipped in one end of rotary shaft 411
417, adjusting knob 417 is set to outside gear-box 415, and user only needs to rotate the adjusting knob at both ends on longitudinal direction respectively
417, the upper and lower of the opposite both ends of longitudinal direction top tray 30 or lifting can be realized respectively, and user only needs singlehanded rotation
Turn adjusting knob 417, operates more simple and convenient.In other embodiments, can also be arranged in one end of rotary shaft 411
Anti-skid design is to replace adjusting knob 417.
In the present embodiment, referring to Figure 14 and Figure 15, height adjustment device 40 further includes the lock being set in gear-box 415
Tight mechanism 430.Retaining mechanism 430 includes braked wheel 432 and locking assembly 434.Rotary shaft 411 and braked wheel 432 are fixed, work as rotation
When shaft 411 rotates, braked wheel 432 can also be rotated with it；When braked wheel 432 stops operating, rotary shaft 411 can also stop therewith
Rotation stop is dynamic.Braked wheel 432 can be designed with rotary shaft 411 it is integrated, can also be fixed by fastening screw 436, can be with
It is fixed by fasteners such as circlip, bayonet lock, keys.Locking assembly 434 and braked wheel 432 cooperate to provide so that keeping rotation
The static restraining force of axis 411, to make 411 static with the tendency to stop operating.When user is not directly or indirectly to rotation
When shaft 411 applies the power for rotating it and makes the restraining force for keeping rotary shaft 411 static sufficiently large, rotary shaft 411 stops
Rotation, gear 412 stops operating, 414 stop motion of rack gear, to realize that pallet 30 is consolidated relative to the height of support frame 20
It is fixed, it avoids that 30 position of pallet is caused to decline due to gravity.Specifically, when rotating adjusting knob 417, pass through transmission mechanism 410
The height of the motor adjustment pallet 30 of mating connection component 420, after adjusting knob 417 stops operating, 430 pairs of retaining mechanism biographies
Motivation structure 410 carries out self-locking, fixes the height of pallet 30.
In the present embodiment, referring to Figure 15, locking assembly 434 includes telescopic pin 4342, adjustable column 4346 and positioned at stretching
Elastic component 4344 between contracting pin 4342 and adjustable column 4346.Adjustable column 4346 is used for the decrement by control elastic component 4344
To adjust so that the size for the restraining force for keeping rotary shaft 411 static.Optionally, braked wheel 432 and telescopic pin 4342 cooperate
The gear teeth are in arcuation, and one side, which can be realized, is at stable state for the locking of rotary shaft 411, on the other hand also do not interfere to revolve
Normal rotation of the shaft 411 under the effect of adjusting knob 417.In other embodiments, the gear teeth of braked wheel 432 are also possible to directly
Tooth or helical teeth etc..In the present embodiment, elastic component 4344 is spring.When adjustable column 4346 make spring decrement it is smaller when, make
The restraining force that rotary shaft 411 must be kept static is also smaller, when adjust adjustable column 4346 make spring decrement it is larger when so that protect
It is also larger to hold the static restraining force of rotary shaft 411.If the decrement of spring is too small, restraining force can be made too small, cannot reached self-locking
Purpose restraining force can be made excessive if the decrement of spring is excessive, to make rotary shaft 411 be difficult to rotate, to be difficult to adjust
The height of pallet 30, therefore the adjusting of the compression degree of spring is arranged in adjustable column 4346 as the case may be, such as in view of bullet
Coefficient of friction etc. between the stiffness factor and telescopic pin 4342 and braked wheel 432 of spring.
In the present embodiment, gear-box 415 includes upper cover 415a and lower cover 415b.Threaded hole 419 is equipped in lower cover 415b,
The external screw thread that the outer surface of adjustable column 4346 is equipped with and threaded hole 419 matches.Pass through the external screw thread and screw thread of adjustable column 4346
The cooperation in hole 419 is to adjust height of the adjustable column 4346 in threaded hole 419, the thus compression degree of adjustment spring.At other
In embodiment, locking assembly 434 further includes gasket (not shown).Gasket is set to the lower section of adjustable column 4346, uses difference
Thus the gasket of height adjusts the compression degree of adjustment spring to adjust the height of adjustable column 4346.
In the present embodiment, referring to Fig. 8, connection component 420 includes connecting rod 422 and the protruding shaft for being set to 422 both ends of connecting rod
424, the both ends of connecting rod 422 are flexibly connected by corresponding protruding shaft 424 with sliding block and pallet 30 respectively.The both ends of connecting rod 422
It is rotated in the height adjustment of pallet 30 rotating around corresponding protruding shaft 424, to adapt to the height adjustment in pallet 30
The both ends of middle connecting rod 422 are respectively relative to the angle change of sliding block and pallet 30.The protruding shaft 424 can be made and connecting rod 422 1
The structure of body formula can also be fixed with connecting rod 422 by fasteners such as lock screws.It in other embodiments, can also be with
Connecting rod 422 and protruding shaft 424 are replaced using flexible cable, in the height adjustment of pallet 30, the both ends of flexible cable can adapt to phase respectively
For the angle change between sliding block and pallet 30.
In the present embodiment, referring to Figure 16 and Figure 17, rack gear 414 includes the first rack gear 414a and the second rack gear 414b, even
Connected components 420 include the first connection component 420a and the second connection component 420b.One end and first of first connection component 420a
The sliding block of the end rack gear 414a connects.One end of second connection component 420b is connect with the sliding block of the second end rack gear 414b, the
The other end of the other end of one connection component 420a and the second connection component 420b respectively with pallet 30 in a lateral direction two
End connection.Optionally, the opposite both ends of pallet 30 in a longitudinal direction are arc-shaped, meet the design of ergonomics, can make
Pallet 30 90 can be conducive to the more accurate magnetic for obtaining scanned position more close to the position to be scanned of patient with what is carried thereon
Resonance image.I.e. the other end of the other end of the first connection component 420a and the second connection component 420b is in pallet 30 respectively
The both ends on one side of arc connect.
In the present embodiment, the phase of gear 412 is respectively arranged at referring to Figure 12, the first rack gear 414a and the second rack gear 414b
Pair both ends so that the first rack gear 414a and the second rack gear 414b are moved along different directions, and the first rack gear 414a and the second rack gear
414b is engaged with the same gear 412, ensure that they synchronize movement, i.e. the first rack gear 414a and the second rack gear 414b exist
In different directions with the movement of identical speed in sliding slot 212.
Optionally, coil brace 10 is seen as symmetrical structure from whole, and the first rack gear 414a and the second rack gear 414b's is same
The both ends on one side that step movement keeps pallet 30 arc-shaped are steadily synchronous to rise or synchronizes decline.On the arc-shaped one side of pallet 30
Both ends it is synchronous rise or synchronous decline be the arc-shaped one side of pallet 30 height adjustment during, connecting rod 422 is being held in the palm
The arc-shaped one side of disk 30 be planar swung left and right with the movement of rack gear 414, and the first rack gear 414a and second
Rack gear 414b, which is moved in sliding slot 212 along different directions, also assures the first connection component 420a's and the second connection component 420b
It tightens to enhance the stability of entire coil brace 10.
In the present embodiment, referring to Figure 17 and Figure 19, height adjustment device 40 further includes crossbeam 440 and rotating mechanism 450.
One side of crossbeam 440 is flexibly connected with connection component 420, and the another side of crossbeam 440 is connect with rotating mechanism 450.Rotating mechanism
450 are also flexibly connected with pallet 30, and rotating mechanism 450 is used for the tilt angle of adjusting tray 30 in a longitudinal direction.
It is appreciated that connection component 420 and it is indirect be directly connected to pallet 30, but pass through crossbeam 440 and rotating machine
Structure 450 is connect with pallet 30.Wherein, medium of the crossbeam 440 as connection, the first connection component 420a and the second connection component
420b is at the both ends on one side of crossbeam 440, with the movement of the first rack gear 414a and the second rack gear 414b, the first connection component
Angle between 420a and the second connection component 420b and crossbeam 440 constantly changes, and drive crossbeam 440 rise or under
Drop, pallet 30 rise with it or decline.And when the both ends of pallet 30 in a longitudinal direction are not to move synchronously, pallet 30 with
Angle between crossbeam 440 is always continually changing during the height of pallet 30 changes, it is therefore desirable to rotating machine
Structure 450 adapts to angle change of the pallet 30 in a longitudinal direction between crossbeam 440.
In the present embodiment, referring to Figure 19 to Figure 21, rotating mechanism 450 includes loose-leaf 452, the first pin shaft 454 and the
One locking member 456.One end of loose-leaf 452 is connect with crossbeam 440, and the other end of loose-leaf 452 and the first pin shaft 454 are flexibly connected,
First locking member 456 is for fixing the first pin shaft 454 and pallet 30.First locking member 456 can be lock screw, be also possible to
Key, bayonet lock etc..In the present embodiment, pass through 456 fixed tray 30 of the first locking member and the first pin shaft 454, i.e. the first pin shaft 454
It is opposing stationary with pallet 30, to avoid the axial movement of the first pin shaft 454.Loose-leaf 452 can be free by the first pin shaft 454
Ground converts angle in a longitudinal direction, to adapt to the process of the height adjustment at the both ends opposite in a longitudinal direction of pallet 30.
In a second embodiment, transmission mechanism 410 is chain wheel driving mechanism, including rotary shaft, sprocket wheel and chain.Sprocket wheel
It is fixed in rotary shaft, chain and sprocket engagement.Rotary shaft is used for band movable sprocket and rotates so that chain movement, to drive connection
The movement of component 420 is to realize the raising and lowering of pallet 30.Specifically, sprocket wheel includes the first sprocket wheel that chain both ends are arranged in
And second sprocket wheel, the identical proper motion to guarantee chain of the movement velocity of the first sprocket wheel and the second sprocket wheel.First connection group
The lower end of the connection of the upper end of part 420a and chain, the second connection component 420b and chain connects, to realize the same of 30 both ends of pallet
Step rises or synchronous decline.
In the third embodiment, transmission mechanism 410 is pulley transmission mechanism, including rotary shaft, belt pulley and belt.
Belt pulley is fixed in rotary shaft, and belt is set in the trough of belt of belt pulley.Rotary shaft is for driving pulley rotation so that skin
Band movement, to drive the movement of connection component 420 to realize the raising and lowering of pallet 50.The transmission of pulley transmission mechanism
Mode is similar with the kind of drive of the chain wheel driving mechanism in second embodiment, and details are not described herein again.
In one embodiment, referring to Figure 18 to Figure 20, pallet 30 includes the first extension of tray rack 310,310 both ends of tray rack
Hook housing 320 and the second hook rack 330 and width adjusting device 340.First hook rack 320, tray rack 310 and the second hook
Frame 330 encloses the accommodation space for setting and being formed and accommodating patient.Rotating mechanism 450 in above-described embodiment is connect with tray rack 310.First
Hook rack 320 and the second hook rack 330 are used for fixed coil 90, and width adjusting device 340 is respectively arranged at the first hook rack 320
Between tray rack 310 and between the second hook rack 330 and tray rack 310, hung for adjusting the first hook rack 320 and second
Hook housing 330 is respectively relative to the tilt angle of tray rack 310 in a lateral direction.By adjusting the first hook rack 320 and second
Hook rack 330 relative to the tilt angle between tray rack 310 it is adjustable they enclose and set the width of the accommodation space to be formed, example
Such as, referring to fig. 22, the thoracic cavity of patient is wider, should tune up the width of accommodation space, referring to fig. 23, the both legs two sides of patient compared with
It is narrow, the width of accommodation space should be turned down.During adjusting, the opposite both ends of coil 90 in a lateral direction can be with
The movement of first hook rack 320 and the second hook rack 330 and deformation occurs to be more bonded patient body, realize coil 90 in width
The positioning on direction is spent, i.e., the adjusting that above-mentioned coil brace 10 is not only able to achieve the height of coil 90 in a longitudinal direction can also be real
The adjusting of width in existing transverse direction.
In the present embodiment, referring to Figure 18 to Figure 20 and Figure 24, width adjusting device 340 includes bar 342 and the
Two locking members 344.First hook rack 320 and the second hook rack 330 are rotated rotating around corresponding bar 342 to adjust relative to support
The tilt angle of plate rail 310, and its angle is fixed by the second locking member 344, to realize the first hook rack 320, tray rack 310
And second hook rack 330 enclose and set the change width of the accommodation space to be formed to adapt to the width of scanned position.Wherein, it first hangs
Hook housing 320 and the second hook rack 330 may be the same or different relative to the tilt angle of tray rack 310.342 He of bar
External screw thread can be equipped with by screw-threaded coupling, such as the end of bar 342 between second locking member 344, the second locking member 344 is set
There is the end of matched threaded hole or bar 342 to be equipped with threaded hole, the second locking member 344 is equipped with matched outer
Screw thread.By i.e. adjustable first tray rack 320 of adjustment width regulating device 340 and the second tray rack 330 relative to tray rack
310 tilt angle had only needed to adjust the second locking member 344 both in adjustment process to adapt to the change width at patient scan position
Can, it is easy to operate simple.
The application also provides a kind of MR imaging apparatus, the equipment include magnetic resonance scanner, coil and with scanning
The hospital bed of instrument coupling, further includes the coil brace 10 in any of the above-described embodiment, coil 90 is mounted on coil brace 10, coil
Bracket 10 is arranged on one's sick bed, and scanner has cavity, and hospital bed can be moved into or remove cavity.When need to patient to
When scanned position is scanned, healthcare givers realizes the positioning of coil 90 to realize coil 90 as far as possible using coil brace 10
Ground is bonded the position to be scanned of patient without regard to the deformation for causing scanned position, is then obtained using MR imaging apparatus
The magnetic resonance image at the position to be scanned of patient.In some embodiments, which can be magnetic resonance imaging
The MRT equipment formed with radiotherapy imaging device.
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 coil brace for magnetic resonance imaging, which is characterized in that including support frame, the pallet for carrying coil
And height adjustment device, the height adjustment device include transmission mechanism and connection component, the transmission mechanism is set to
On the support frame, the connection component is connect with the transmission mechanism and the pallet respectively, the transmission mechanism cooperation
The connection component is for adjusting height of the pallet relative to the support frame.
2. the coil brace according to claim 1 for magnetic resonance imaging, which is characterized in that the support frame includes
The arched frame at both ends in a longitudinal direction, the longitudinal direction are the short transverse of patient, and the arched frame is respectively provided with described
Height adjustment device is respectively used to adjust the height of the opposite end of the pallet in the longitudinal direction.
3. the coil brace according to claim 2 for magnetic resonance imaging, which is characterized in that the transmission mechanism is tooth
Wheel drive mechanism, including rotary shaft, gear and rack gear, the gear are fixed in the rotary shaft, the rack gear with it is described
Gear engagement, the rotary shaft is for driving the gear rotation so that the rack movement.
4. the coil brace according to claim 3 for magnetic resonance imaging, which is characterized in that the height adjustment device
It further include gear-box and bearing, the gear-box is set on the arched frame, the bearing, the rotary shaft and the tooth
Wheel is set in the gear-box, and the bearing is used to cooperate in the gear-box rotation of the rotary shaft, the gear
The opposite both ends of case are equipped with the hole passed through for the rack gear.
5. the coil brace according to claim 4 for magnetic resonance imaging, which is characterized in that the height adjustment device
It further include the retaining mechanism being set in the gear-box, the retaining mechanism includes braked wheel and locking assembly, the rotation
Axis is fixed with the braked wheel, and the locking assembly and the braked wheel cooperate to provide so that keeping the rotary shaft static
Restraining force.
6. the coil brace according to claim 3 for magnetic resonance imaging, which is characterized in that the rack gear includes first
Rack gear and the second rack gear, first rack gear and second rack gear are respectively arranged at the opposite both ends of the gear so that institute
It states the first rack gear and second rack gear is moved along different directions, the connection component includes the first connection component and the second connection
Component, one end of first connection component are connect with first rack gear, one end of second connection component and described the
The connection of two rack gears, the first connection component other end and the second connection component other end are respectively with the pallet in transverse direction
Both ends connection on direction, the transverse direction are the direction vertical with the longitudinal direction.
7. the coil brace according to claim 1 for magnetic resonance imaging, which is characterized in that the height adjustment device
It further include rotating mechanism and crossbeam, one side of the crossbeam is flexibly connected with the connection component, the another side of the crossbeam
It is connect with the rotating mechanism, the rotating mechanism is also flexibly connected with the pallet, and the rotating mechanism is described for adjusting
The tilt angle of pallet in the longitudinal direction, the longitudinal direction are the short transverse of patient.
8. the coil brace according to claim 1 for magnetic resonance imaging, which is characterized in that the pallet includes pallet
The first hook rack and the second hook rack of frame, width adjusting device and the tray rack both ends, first hook rack and institute
The second hook rack is stated for fixing the coil, the width adjusting device is respectively arranged at first hook rack and the support
Between plate rail and between second hook rack and the tray rack, hung for adjusting first hook rack and described second
Hook housing is respectively relative to the tilt angle of the tray rack.
9. the coil brace according to claim 1 for magnetic resonance imaging, which is characterized in that the transmission mechanism is chain
Wheel drive mechanism, including rotary shaft, sprocket wheel and chain, the sprocket wheel are fixed in the rotary shaft, the chain with it is described
Sprocket engagement, the rotary shaft is for driving the sprocket wheel rotation so that the chain movement；Alternatively,
The transmission mechanism is pulley transmission mechanism, including rotary shaft, belt pulley and belt, the belt pulley are fixed on institute
It states in rotary shaft, the belt is set on the belt pulley, and the rotary shaft is for driving the pulley rotation so that institute
State belt movement.
10. a kind of MR imaging apparatus, which is characterized in that including scanner, coil and the disease coupled with the scanner
Bed, which is characterized in that further include the coil brace for magnetic resonance imaging as described in claim 1~9 is any, the coil
It is mounted on the coil brace, the coil brace is arranged on the hospital bed, and the scanner has cavity, and the disease
Bed can be moved into or remove the cavity.
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| CN201910440830.9A CN110200630B (en) | 2019-05-24 | 2019-05-24 | Coil support for magnetic resonance imaging and magnetic resonance imaging device |
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| CN201910440830.9A CN110200630B (en) | 2019-05-24 | 2019-05-24 | Coil support for magnetic resonance imaging and magnetic resonance imaging device |
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| CN110200630A true CN110200630A (en) | 2019-09-06 |
| CN110200630B CN110200630B (en) | 2023-06-23 |
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| CN201910440830.9A Active CN110200630B (en) | 2019-05-24 | 2019-05-24 | Coil support for magnetic resonance imaging and magnetic resonance imaging device |
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| CN112957048A (en) * | 2021-03-23 | 2021-06-15 | 北京未磁科技有限公司 | Position adjusting device for adjusting position of detection equipment and magnetocardiogram instrument |
| CN114711747A (en) * | 2022-05-18 | 2022-07-08 | 无锡锡州机械有限公司 | Medical nuclear magnetic resonance's coil support |
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|---|---|
| CN110200630B (en) | 2023-06-23 |
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