CN106236121A - The aligning regulating device of a kind of multi-mode imaging system and alignment control method thereof - Google Patents
The aligning regulating device of a kind of multi-mode imaging system and alignment control method thereof Download PDFInfo
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- CN106236121A CN106236121A CN201610761785.3A CN201610761785A CN106236121A CN 106236121 A CN106236121 A CN 106236121A CN 201610761785 A CN201610761785 A CN 201610761785A CN 106236121 A CN106236121 A CN 106236121A
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- 238000012879 PET imaging Methods 0.000 claims abstract description 19
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- 238000002591 computed tomography Methods 0.000 description 4
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- 238000012831 peritoneal equilibrium test Methods 0.000 description 1
- 238000002600 positron emission tomography Methods 0.000 description 1
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
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- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
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- A—HUMAN NECESSITIES
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
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Abstract
The aligning regulating device of a kind of multi-mode imaging system and alignment control method thereof, multi-mode imaging system includes PET imaging system and other imaging system, and this aligning regulating device includes being perpendicular to two target holders of ground setting and for installing the main supporting mechanism of fixing target holder or PET frame;Two described target holders are parallel to each other, the axis direction of the line direction instruction PET imaging system of target center;Main supporting mechanism includes adjusting base and being arranged on adjustment base for installing fixing described target holder or the framework soleplate of PET frame, described adjustment base, for regulating the distance of described framework soleplate diverse location and ground, makes the target center of two described target holders overlap with the central shaft of other imaging system;Described PET frame is installed on the described main supporting mechanism after adjustment, a kind of aligning regulating device of present invention offer and alignment control method thereof, simple in construction, mobile quick and easy effectively with alignment procedures, can effectively ensure pet detector and other imaging system central coaxial degree requirements.
Description
Technical field
The present invention relates to technical field of medical instruments, relate to medical imaging equipment, especially multi-mode imaging system is right
Quasi-adjusting means and alignment control method thereof.
Background technology
Multi-mode imaging system may be used for multiple modalities and is scanned, such as Positron emission computed tomography
(Positron EmissionTomography, PET), single Positron emission computed tomography (SPECT), nuclear resounce become
As (MRI), computed tomography (ComputedTomography, CT) etc..
In multimode system (also referred to as system polymorphic), part same hardware is used to complete different scanning, such as, PET-CT
It is that PET and CT is organically combined, uses same examinating couch and same image processing workstations, utilize PET and CT to scheme
The intrinsic coincidence of picture, forms PET-CT fusion image by PET image and CT image by image reconstruction integration technology, once images
Pathophysiological change and the morphosis of focus can be reflected, it is achieved have complementary advantages simultaneously, there is sensitivity, accurate, specificity
The features such as height and registration.
Above-mentioned intrinsic coincidence is built upon assuming different imaging system, and the coordinate system of such as PET and CT frame is in alignment with
On the basis of, if the coordinate system misalignment of different imaging system, then may directly result in the misregistration of image, it is impossible to accurate
Standby carries out the steps such as follow-up image reconstruction, and then cannot provide accurate image information.
Therefore, it is necessary to provide a kind of simple in construction, easy to adjust, and can well ensure that different imaging system is coaxially wanted
The installing mechanism asked.
Summary of the invention
It is an object of the invention to provide aligning regulating device and the alignment control method thereof of a kind of multi-mode imaging system,
Simple in construction, easy to operate, can effectively ensure pet detector and CT center of rotation axiality requirement, it can also be real simultaneously
The separation of existing different imaging system, also brings facility to the maintenance of equipment and safety check.
For reaching above-mentioned purpose, the solution of the present invention is:
A kind of aligning regulating device of multi-mode imaging system, described multi-mode imaging system include PET imaging system and
Other imaging system, including being perpendicular to two target holders that ground arranges and for installing fixing described target holder or PET frame
Main supporting mechanism;
Two described target holders are parallel to each other, and the line direction of target center indicates the axis direction of described PET imaging system;
Described main supporting mechanism includes adjusting base and being arranged on described adjustment base for installing fixing described target holder
Or the framework soleplate of described PET frame, described adjustment base for regulating the distance of described framework soleplate diverse location and ground,
The target center of two described target holders is made to overlap with the central shaft of other imaging system;
Described PET frame is installed on the described main supporting mechanism after adjustment.
Preferably, being provided with the first slotted hole and setting round-meshed circular hole slab of the upper end of two described target holders, described
Circular hole slab removably connects with described target holder.
Preferably, described circular hole slab be arranged in parallel with the plate face of described target holder, is each perpendicular to ground, and described circular hole slab is arranged
Any side in described target holder.
Preferably, when described circular hole slab is fixed on described target holder, described circular hole connects with described first slotted hole, arranges
Center in described first slotted hole;The axial direction of described circular hole and described first slotted hole is for being parallel to ground side
To, the long side direction of described first slotted hole is the direction being perpendicular to ground.
Preferably, described adjustment base includes the symmetrically arranged rolling bearing of least one set being arranged at bottom surface.
Preferably, described adjustment base includes the altitude mixture control bearing being arranged on surrounding at least four;
The two ends of described adjustment base are respectively arranged be positioned at that described framework soleplate parallel beneath arranges in ground fixing
Plate, described altitude mixture control bearing passes and is movably fixed to be perpendicular to ground in described fixed plate and arranges;
Rotate each described altitude mixture control bearing and change described framework soleplate and the distance on ground on this position.
Preferably, described altitude mixture control bearing includes that base and support column, described support column are that lower end edge horizontal direction sets
There is the hex bolts of projection;
Described base upper end is provided with opening, and the width of described opening is less than institute more than the width of the stud of described hex bolts
State the width of projection.
Preferably, described chassis interior is provided with thrust ball bearing;
Described support column is arranged at the top of described base after the opening of described base, and described protruding upper end is with described
Base inner cap contacts, and lower end is arranged on described thrust ball bearing.
Preferably, described support column is threaded connection with described fixed plate.
A kind of aligning regulating device of PET-CT imaging system, the aligning regulating device of described PET-CT imaging system this
The aligning regulating device of a kind of multi-mode imaging system of bright offer, also includes that CT center indicates assembly, and described CT center indicates
Assembly is coaxially disposed with the aligning regulating device of described multi-mode imaging system, and described CT center instruction assembly is used for indicating described
The axle center of CT equipment, the aligning regulating device of described multi-mode imaging system is according to the location confirmation of described CT center instruction assembly
Described alignment regulation and separation adjust the height of base;
Described CT center instruction assembly is installed in CT frame, fills including laser calibrating equipment and by described laser calibration
Put the calibration base plate being fixedly installed in described CT frame;
Described calibration base plate is installed on the trans D of described CT frame, and it includes calibrating base plate body, described calibration
Identical with the diameter of CT frame and calibration base plate body the dual-side curvature of base plate body length is the most identical with CT frame curvature to be set
Putting, the center of described calibration base plate body also sets up one for by the through hole of laser;
Described laser calibrating equipment includes laser instrument and installs the optical table of described laser instrument, described optical table bag
The laser instrument include optical backplane, being positioned on described optical table adjusts platform and guide-lighting orifice plate, and described guide-lighting orifice plate is vertically fixed
On optical backplane, when described laser calibrating equipment is installed on calibration base plate, the light-conductive hole of described guide-lighting orifice plate is logical with described
The axially coincident setting in hole is using the adjustment benchmark as described laser instrument, and described laser instrument is installed on described laser instrument and adjusts on platform,
Described laser instrument adjusts the adjustable setting of spacing between platform and described optical table and makes with the position adjusting described laser instrument described
The laser that laser instrument is launched can pass described light-conductive hole;
Preferably, described calibration base plate also includes that two connection otic placodes, described connection otic placode are positioned at described calibration base plate body
In both sides, described connection otic placode and described CT frame, correspondence offers connecting hole to assist for described calibration base plate body with described
Location between CT frame;
Preferably, described calibration base plate body processing integrated with described connection otic placode;
Preferably, described laser instrument adjusts the adjustment spiral shell that platform includes adjusting base plate and arranging through described adjustment base plate
Bolt, described laser instrument is fixed on described adjustment base plate, described adjustment base plate described adjustment bolt corresponding with described optical backplane
Arrange multiple connecting hole, described adjustment base plate and described optical backplane via the plurality of adjustment bolt regulation therebetween between
Away from so that the laser that described laser instrument sends can pass described light-conductive hole;
Preferably, described optical backplane and described calibration base plate body in junction corresponding locating slot of offering, described optics
It is located by connecting via described locating slot between base plate and described calibration base plate body;
Preferably, the locating slot on described optical backplane and described laser instrument adjust platform totally one facade to assist for institute
State the location between laser instrument and described calibration base plate;
Preferably, described laser instrument launch laser be cross or yi word pattern laser, described light-conductive hole be correspondingly arranged into
Cross or yi word pattern structure.
The alignment control method of the aligning regulating device of a kind of multi-mode imaging system, it is characterised in that described alignment is adjusted
Joint method includes:
Step 1, determines the shaft core position of other imaging system;
Step 2, carries out PET imaging system and other imaging system described on the basis of the axle center of other imaging system described
Axes alignment:
Step 2-1, adjusts the height of each altitude mixture control bearing of described PET imaging system aligning regulating device so that it is
Base does not contacts with ground, is disassembled by circular hole slab from target holder, relies on rolling bearing to promote described PET imaging system level
Direction is moved, and makes the axle center first slotted hole through two described target holders of other imaging system described;
Step 2-2, adjusts the height of each altitude mixture control bearing so that it is base is placed on ground;
Step 2-3, is installed to described circular hole slab on target holder, adjusts the height of each described altitude mixture control bearing, makes institute
State the axle center circular hole through two described target holders of other imaging system;
Step 2-4, unloads described target holder from main supporting mechanism, PET frame is installed on main supporting mechanism.
Owing to using such scheme, the invention has the beneficial effects as follows:
A kind of multi-mode imaging system aligning regulating device of present invention offer and alignment control method thereof, mobile simplicity,
By the circular hole being flexibly connected and slotted hole, linear type laser is used to be directed at: during moving horizontally, to realize level
After the alignment in direction, circular hole slab regulation is installed and realizes the alignment of vertical direction.Realize the adjusting base of regulatory function, structure letter
Single, by being arranged on the altitude mixture control bearing of corner location, by this altitude mixture control bearing of end rotation of hex bolts, thrust
Ball bearing can bear thrust load when bolt rotates, thus changes the height of the altitude mixture control bearing of fixed plate lower end, and then
Change main supporting mechanism be provided with this altitude mixture control bearing each point height i.e. framework soleplate diverse location and ground away from
From, it is achieved center alignment regulation, altitude mixture control bearing number makes regulation process simple and fast less.
Accompanying drawing explanation
The structural representation of the embodiment of a kind of multi-mode imaging system aligning regulating device that Fig. 1 provides for the present invention;
The partial enlarged drawing of part A in Fig. 1 that Fig. 2 provides for the present invention;
The partial enlarged drawing of part B in Fig. 1 that Fig. 3 provides for the present invention;
The upward view of the embodiment adjusting base that Fig. 4 provides for the embodiment of the present invention;
The schematic cross-section that the altitude mixture control bearing that Fig. 5 provides for the embodiment of the present invention is connected with fixed plate;
Fig. 6 indicates the installation knot of laser instrument and optical table in assembly one embodiment for a kind of CT center that the present invention provides
Structure schematic diagram;
Fig. 7 indicates optical table and the installation calibrating base plate in assembly one embodiment for a kind of CT center that the present invention provides
Structural representation;
Wherein, multi-mode imaging system aligning regulating device 100, target holder the 110, first slotted hole 111, circular hole 112, circular hole
Plate 113, main supporting mechanism 120, adjustment base 121, framework soleplate 122, rolling bearing 123, altitude mixture control bearing 124, base
1241, support column 1242, projection 1243, opening 1244, thrust ball bearing 1245, fixed plate 125, laser instrument 211, optical backplane
212, laser instrument adjusts platform 213, guide-lighting orifice plate 214, adjustment base plate 215, adjustment bolt 216, calibration base plate body 221, connects
Otic placode 222.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
In order to technical solutions according to the invention are described, illustrate below by specific embodiment.
Embodiment one
The embodiment that embodiment one is a kind of multi-mode imaging system aligning regulating device that the present invention provides, such as Fig. 1 institute
It is shown as the structural representation of embodiment of a kind of multi-mode imaging system aligning regulating device that the present invention provides, as shown in Figure 1,
Multi-mode imaging system include PET imaging system and other imaging system, other imaging system can be CT imaging system or
MRI imaging system etc..This multi-mode imaging system aligning regulating device 100 includes being perpendicular to two target holders that ground is arranged
110 and for installing the main supporting mechanism 120 of fixing target holder 110 or PET frame.
Two target holders 110 are parallel to each other, the axis direction of the line direction instruction PET imaging system of target center.
Main supporting mechanism 120 includes adjusting base 121 and being arranged on adjustment base 121 for installing fixing target holder 110
Or the framework soleplate 122 of PET frame, adjust the distance that base 121 is used for regulating framework soleplate 122 diverse location with ground, make
The target center of two target holders 110 overlaps with the central shaft of other imaging system, and PET frame is installed on the main supporting mechanism after adjustment
On 120.
Above-mentioned adjustment base 121 and framework soleplate 122 are all formed by Precision Machining, and are about axially symmetric setting
Structure.
Preferably, the partial enlarged drawing of A and B in the most respectively Fig. 1, from Fig. 2 and Fig. 3, two
The upper end of target holder 110 is provided with the first slotted hole 111 and is provided with the circular hole slab 113 of circular hole 112, circular hole slab 112 and target holder 110
Removably connect.
Circular hole slab 113 be arranged in parallel with the plate face of target holder 110, is each perpendicular to ground, and circular hole slab 113 is arranged at target holder 110
Any side, be given in the embodiment that Fig. 1 is given is the circular hole slab embodiment of being located at two target holder not homonymies.
When circular hole slab 112 is fixed on target holder 110, this circular hole 112 connects with the first slotted hole 111, is arranged at first long
The center of circular hole 111.The axial direction of circular hole 112 and the first slotted hole 111 for being parallel to direction, ground, the first slotted hole
The long side direction of 111 is the direction being perpendicular to ground.
Further, the most respectively the upward view of the embodiment adjusting base that the present invention provides, adjusts base
121 include the symmetrically arranged rolling bearing of least one set 123 being arranged at bottom surface, and such as buphthalmos ball bearing, Fig. 4 is given
In embodiment, adjust and be provided with symmetrical four groups of rolling bearings 123 on the bottom surface of base 121.
Adjust the altitude mixture control bearing 124 that base 121 also includes being symmetricly set on surrounding at least four, thus effectively real
The existing adjustment of spacing between framework soleplate 122 and ground, embodiment camber regulation bearing 124 quantity that Fig. 1 and Fig. 4 is given is
Four, it is separately positioned on the corner adjusting base 121.The two ends of adjustment base 121 are respectively arranged with and are positioned at framework soleplate 122 times
Side is parallel to the fixed plate 125 that ground is arranged, and this altitude mixture control bearing 124 passes and be movably fixed in fixed plate 125 vertical
Arrange in ground.Rotate each altitude mixture control bearing 124 and change the height adjusting base 121 on this position, and then change should
Point position upper spider base plate 122 and the distance on ground.
The schematic cross-section that the altitude mixture control bearing that being illustrated in figure 5 the present invention provides is connected with fixed plate, can by Fig. 5
Knowing, altitude mixture control bearing 124 includes base 1241 and support column 1242, and this support column 1242 is provided with convex for lower end edge horizontal direction
Play the hex bolts of 1243.Base 1241 upper end is provided with opening 1244, and the width of this opening 1244 is more than the stud of hex bolts
The width width less than protruding 1243, base 1241 is internal is provided with thrust ball bearing 1245.Support column 1242 is through base
After the opening 1244 of 1241, being arranged at the top of base 1241, protruding 1243 upper ends contact with base 1241 inner cap, and lower end is arranged
On thrust ball bearing 1245.Support column 1242 is threaded connection with fixed plate 125, by the head of hex bolts during use
Rotating this altitude mixture control bearing 124, thrust ball bearing 1245 can bear thrust load when bolt rotates, thus changes fixed plate
The height of the altitude mixture control bearing 124 of 125 lower ends, and then change main supporting mechanism 120 and be provided with this altitude mixture control bearing 124
The height of each point.This height adjustment bearing 124, as PET machine load-bearing support member, uses M20 bolt.
A kind of multi-mode imaging system aligning regulating device that the embodiment of the present invention one provides is carried out with other imaging system
During alignment regulation, it is to make the target center of two target holders 110 overlap with the central shaft of other imaging system, it is preferred that the present invention provides
The embodiment of a kind of CT center instruction assembly, for realizing confirmation and the instruction in CT axle center, CT center instruction assembly is added by machine
The mode of work realizes the location in CT axle center, and specifically, CT center instruction assembly is fixedly mounted in CT frame, such as Fig. 6 and
Laser instrument and optical table and optics in a kind of CT center instruction assembly one embodiment that the present invention provides it is respectively shown in Fig. 7
Platform and the mounting structure schematic diagram calibrating base plate, from Fig. 6 and Fig. 7, this CT center instruction assembly includes that machining makes
Laser calibrating equipment and calibration base plate, the correction base plate body length in calibration base plate identical with CT frame diameter sets
Putting, the laser instrument 211 in laser calibrating equipment is positioned at the center position of correction base plate body, due to the installation process of CT frame
In axially and horizontal direction is the most adjusted complete, therefore indicate assembly to be fixedly mounted on CT frame at horizontal for adjustment Hou CT center
Time, laser instrument 211 is regarded as the appointment position in the axle center of CT frame.
Laser calibrating equipment includes laser instrument 211 and installs the optical table of laser instrument 211, and optical table specifically includes
One optical backplane 212, the laser instrument being arranged on optical backplane 212 adjust platform 213 and guide-lighting orifice plate 214, and optical backplane 212 is whole
Body is arranged on the center position of calibration base plate, and laser instrument adjusts platform 213 and guide-lighting orifice plate 214 lays respectively at optical backplane 212
Two ends and be each perpendicular to base plate arrange.When laser calibrating equipment is arranged on calibration base plate, guide-lighting orifice plate 214 and the calibration end
The central point of plate body 221 is axially coincident, and what on the most guide-lighting orifice plate 214, the shape correspondence laser instrument 211 of light-conductive hole sent swashs
Light is yi word pattern or cross, thus guide-lighting orifice plate 214 adjusts the position determining laser instrument 211 as benchmark.Laser instrument
211 are fixed on laser instrument by bolt presses adjusts on platform, and laser instrument adjusts platform and includes adjusting base plate 215 and multiple adjustment spiral shell
Bolt 216, adjusts base plate 215 and is arranged on optical backplane 212, the two respectively the corresponding bolt 216 that adjusts multiple connecting hole is set.Adjust
Chassis assembly 215 and optical backplane 212 regulate spacing therebetween via adjusting bolt, so that what laser instrument 211 sent
Laser can effectively pass above-mentioned light-conductive hole, so that after laser calibrating equipment 210 is arranged on calibration base plate 220, laser
Device 211 is axially coincident with the central point of calibration base plate body 221.
Calibration base plate uses polish mode to make, and it is arranged on the trans D of CT frame, including calibration base plate originally
Body 221, at a centrally disposed through hole of calibration base plate body 221, is so arranged, when laser calibrating equipment is fixed on calibration base plate
Time on body 221, the laser that laser instrument 211 is launched can sequentially pass through through hole and light-conductive hole arrives on the target center of target holder 110, with
Carry out the alignment procedures of follow-up CT Yu PET frame.
Wherein in an embodiment, calibration base plate body 221 length is identical with the diameter of CT frame and calibrates the two of base plate
Side curvature and the CT the most identical setting of frame curvature, thus calibrate base plate body 221 and can be engaged and installed in the horizontal of CT frame
Diametrically.
In order to ensure to calibrate installation degree of accuracy and the steadiness of base plate body 221, in addition to calibration base plate body 221, school
Quasi-base plate also includes two connection otic placodes 222, and two connect otic placode 222 is positioned at calibration base plate body 221 both sides, it is preferred that the calibration end
Plate body 221 with connect that otic placode 222 is integrated processes, connect correspondence in otic placode and CT frame and offer connecting hole, calibrate the end
Plate body 221 is fixed behind the trans D position of CT frame, is being connected between otic placode and CT frame by both sides
Bolt connection, it is possible to the more structurally sound installation accuracy ensureing calibration base plate and reliability, in addition, it is possible to base plate will be calibrated originally
The two ends of body 221 are set to notch cuttype, are then radially fixed in CT frame by calibration base plate body 221 by trip bolt.
For the ease of laser calibrating equipment in the installation calibrated on base plate and location, at the bottom of calibration base plate body 221 and optics
It is correspondingly arranged locating slot on the face that plate contacts respectively, offers calibration base plate body along calibration base plate body 221 length direction
Locating slot on 221, and the width of this locating slot is identical with optical backplane width, optics is offered in the direction along optical backplane width
Locating slot on base plate.Optical backplane by locating slot with calibration base plate body 221 square crossing be connected carry out the most spacing after,
It is connected to realize between optical backplane and calibration base plate body 221 in the fastening carried out by several groups of bolts between two groups of locating slots
Installation.
As a preferred version, the locating slot on optical backplane and laser instrument adjust platform totally one facade, and optical backplane
On the width of locating slot and the identical setting of thickness of calibration base plate body 221, thus when at the bottom of calibration base plate body 221 with optics
When plate is via two groups of locating slot vertical spacing connections, laser instrument adjusts the wall of platform the most adjacent calibration base plate body 221 and arranges,
Further to improve installation accuracy, additionally, the width of the locating slot on optical backplane also can be wider than calibration base plate body 221
Thickness is arranged, and when so designing, in order to improve installation accuracy, is correspondingly arranged a spiral shell on the facade of calibration base plate body 221
Keyhole, a corresponding bolt arrives at laser instrument and adjusts the facade of platform after passing this bolt hole, thus auxiliary realizes laser calibration dress
Put and calibrate being relatively fixed of base plate installation site.
Embodiment two
The alignment of a kind of multi-mode imaging system that the embodiment two that the present invention provides provides for the embodiment of the present invention one is adjusted
The embodiment of the alignment control method of regulating device, is directed at PET imaging system with other imaging system, becomes there is PET
When the axis direction of picture system is misaligned with the central shaft of other imaging system, first regulation is parallel to the displacement in direction, ground: adjust
The height of whole altitude mixture control bearing, makes base not contact with ground, relies on rolling bearing to promote this PET imaging system horizontal direction
Mobile so that it is the axle center of its imaging system is through the first slotted hole of two target holders.Regulation is perpendicular to the displacement in direction, ground again:
By circular hole slab with adjust altitude mixture control bearing height, make altitude mixture control bearing lower end base with contact, regulation framework soleplate
Each point of rational height regulation bearing is perpendicular to the displacement in direction, ground so that it is the axle center of its imaging system passes two target holders
Circular hole, whole adjustment process is more fast and simple.
Concrete, this alignment regulation process includes:
Step 1, determines the shaft core position of other imaging system.
Step 2, carries out the axle center pair of PET imaging system and other imaging system on the basis of the axle center of other imaging system
Accurate.
Concrete, this step 2 includes:
Step 2-1, adjusts the height of each altitude mixture control bearing of PET imaging system aligning regulating device so that it is base
Do not contact with ground, circular hole slab is disassembled from target holder, rely on rolling bearing to promote this PET imaging system horizontal direction to move
Dynamic so that it is the axle center of its imaging system is through the first slotted hole of two target holders.
Step 2-2, adjusts the height of each altitude mixture control bearing so that it is base is placed on ground.
Step 2-3, is installed to circular hole slab on target holder, adjusts the height of each altitude mixture control bearing so that it is its imaging system
The axle center of system is through the circular hole of two target holders.
Step 2-4, unloads target holder from main supporting mechanism, PET frame is installed on main supporting mechanism.
Preferably, in step 1, carry out the axle center of CT frame according to the CT center instruction modular construction shown in the present invention
During confirmation, comprise the following steps:
Step 1-1, carries out the determination of laser instrument 211 installation site.Owing to being able to ensure that CT center indicates by machining
After assembling components, the light-conductive hole of guide-lighting orifice plate 214 with calibrate that base plate body 221 is central axial to be overlapped, therefore laser instrument 211 with
Guide-lighting orifice plate 214 position as benchmark to realize the calibration of the installation site of self: laser instrument 211 is fixed on laser instrument
After adjusting platform 213, open laser instrument 211, then adjust the spacing between base plate 215 and optical backplane 212 by fine setting so that
Cross or yi word pattern laser that laser instrument 211 sends can penetrate guide-lighting orifice plate 214 to realize laser calibrating equipment 210 self
Correction.
Step 1-2, installs the complete laser calibrating equipment of debugging to calibration base plate, and verifies after assembling in CT
The level of heart instruction assembly.It is fixed on adjusting complete laser calibrating equipment on calibration base plate, enters utilizing level indicator
The correction of the level that row CT center instruction assembly is overall.The optical backplane 212 of laser calibrating equipment is arranged on by draw-in groove
On calibration base plate, through bolt realize the two connection fixing after, level indicator is placed on optical backplane 212, passes through level indicator
The Hou CT center instruction assembly i.e. level of laser instrument 211 is installed determining.Due to laser calibrating equipment and calibration
Base plate all uses machining mode to make, and puts in place if installing therebetween, then laser calibrating equipment is in level, logical
Cross after level indicator confirms that laser calibrating equipment is in level, then can carry out the adjustment of CT frame as benchmark, if level indicator
There is deflection, be not at level, then laser calibrating equipment is retightened installation after dismounting from calibration base plate, until confirming
The two is still within level after connecting.
Step 1-3, is installed on the CT center verified instruction assembly on the fixed support of imaging system, then laser instrument
I.e. be regarded as the appointment position in the axle center of CT frame, horizontal adjustment complete CT center instruction assembly be arranged in CT frame
After, due in the installation process of CT frame axially and horizontal direction is the most adjusted complete, therefore adjust horizontal Hou CT center and indicate
When assembly is fixedly mounted on CT frame via calibration base plate, the position at laser instrument place is i.e. regarded as the finger in the axle center of CT frame
Location is put.
A kind of multi-mode imaging system aligning regulating device that the present invention provides, mobile simplicity, by the circle being flexibly connected
Hole and slotted hole, use linear type laser to be directed at: after realizing the alignment of horizontal direction during moving horizontally, install
Circular hole slab regulation realizes the alignment of vertical direction.Realizing the adjusting base of regulatory function, simple in construction, by being arranged on position, corner
The altitude mixture control bearing put, rotation height regulation bearing changes the height of the altitude mixture control bearing of fixed plate lower end, and then changes
Main supporting mechanism is provided with the height of each point of this altitude mixture control bearing, can realize center alignment regulation, altitude mixture control axle
Hold number and make regulation process simple and fast less.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (11)
1. an aligning regulating device for multi-mode imaging system, described multi-mode imaging system include PET imaging system and its
Its imaging system, it is characterised in that: include being perpendicular to two target holders that ground arranges and for install fixing described target holder or
The main supporting mechanism of PET frame;
Two described target holders are parallel to each other, and the line direction of target center indicates the axis direction of described PET imaging system;
Described main supporting mechanism includes adjusting base and being arranged on described adjustment base for installing fixing described target holder or institute
Stating the framework soleplate of PET frame, described adjustment base, for regulating the distance of described framework soleplate diverse location and ground, makes two
The individual target center of described target holder overlaps with the central shaft of other imaging system;
Described PET frame is installed on the described main supporting mechanism after adjustment.
Aligning regulating device the most according to claim 1, it is characterised in that: the upper end of two described target holders be provided with
One slotted hole and set round-meshed circular hole slab, described circular hole slab removably connects with described target holder.
Aligning regulating device the most according to claim 1, it is characterised in that: described circular hole slab is flat with the plate face of described target holder
Row is arranged, and is each perpendicular to ground, and described circular hole slab is arranged at any side of described target holder.
Aligning regulating device the most according to claim 1, it is characterised in that: described circular hole slab is fixed on described target holder
Time, described circular hole connects with described first slotted hole, is arranged at the center of described first slotted hole;Described circular hole and described
The axial direction of the first slotted hole is for being parallel to direction, ground, and the long side direction of described first slotted hole is the side being perpendicular to ground
To.
Aligning regulating device the most according to claim 1, it is characterised in that: described adjustment base includes being arranged at bottom surface
The symmetrically arranged rolling bearing of least one set.
Aligning regulating device the most according to claim 1, it is characterised in that: it is thoughtful that described adjustment base includes being arranged on four
The altitude mixture control bearing of few four;
The two ends of described adjustment base are respectively arranged with and are positioned at the fixed plate that described framework soleplate parallel beneath is arranged in ground, institute
State altitude mixture control bearing to pass and be movably fixed in described fixed plate, to be perpendicular to ground setting;
Rotate each described altitude mixture control bearing and change described framework soleplate and the distance on ground on this position.
Aligning regulating device the most according to claim 6, it is characterised in that: described altitude mixture control bearing includes base and props up
Dagger, described support column is the hex bolts that lower end edge horizontal direction is provided with projection;
Described base upper end is provided with opening, and the width of described opening is less than described convex more than the width of the stud of described hex bolts
The width risen.
Aligning regulating device the most according to claim 7, it is characterised in that: described chassis interior is provided with thrust ball bearing;
Described support column is arranged at the top of described base, described protruding upper end and described base after the opening of described base
Inner cap contacts, and lower end is arranged on described thrust ball bearing.
Aligning regulating device the most according to claim 7, it is characterised in that: described support column and described fixed plate pass through spiral shell
Stricture of vagina connects.
10. the aligning regulating device of a PET-CT imaging system, it is characterised in that: the alignment of described PET-CT imaging system is adjusted
Regulating device includes the aligning regulating device of the multi-mode imaging system described in any one of claim 1-9, also includes that CT center refers to
Show that assembly, described CT center instruction assembly are coaxially disposed, in described CT with the aligning regulating device of described multi-mode imaging system
Heart instruction assembly is for indicating the axle center of described CT equipment, and the aligning regulating device of described multi-mode imaging system is according to described CT
Alignment regulation described in the location confirmation of center instruction assembly and separation adjust the height of base;
Described CT center instruction assembly is installed in CT frame, consolidates including laser calibrating equipment and by described laser calibrating equipment
Dingan County is loaded on the calibration base plate in described CT frame;
Described calibration base plate is installed on the trans D of described CT frame, and it includes calibrating base plate body, described calibration base plate
Body length is identical with the diameter of CT frame and dual-side curvature and the CT the most identical setting of frame curvature of calibration base plate body, institute
The center stating calibration base plate body also sets up one for by the through hole of laser;
Described laser calibrating equipment includes laser instrument and installs the optical table of described laser instrument, and described optical table includes light
The laser instrument learn base plate, being positioned on described optical table adjusts platform and guide-lighting orifice plate, and described guide-lighting orifice plate is perpendicularly fixed at light
Learn on base plate, when described laser calibrating equipment is installed on calibration base plate, the light-conductive hole of described guide-lighting orifice plate and described through hole axle
Arranging to overlapping using the adjustment benchmark as described laser instrument, described laser instrument is installed on described laser instrument and adjusts on platform, described
Laser instrument adjusts the adjustable setting of spacing between platform and described optical table and makes described laser with the position adjusting described laser instrument
The laser that device is launched can pass described light-conductive hole;
Preferably, described calibration base plate also includes that two connection otic placodes, described connection otic placode are positioned at described calibration base plate body both sides,
On described connection otic placode and described CT frame, correspondence offers connecting hole with auxiliary for described calibration base plate body and described CT machine
Location between frame;
Preferably, described calibration base plate body processing integrated with described connection otic placode;
Preferably, described laser instrument adjusts the adjustment bolt that platform includes adjusting base plate and arranging through described adjustment base plate, institute
Stating laser instrument to be fixed on described adjustment base plate, described adjustment base plate described adjustment bolt corresponding with described optical backplane arranges many
Individual connecting hole, described adjustment base plate and described optical backplane via the plurality of adjustment bolt regulation spacing therebetween so that
The laser that sends of described laser instrument can pass described light-conductive hole;
Preferably, described optical backplane and described calibration base plate body in junction corresponding locating slot of offering, described optical backplane
And it is located by connecting via described locating slot between described calibration base plate body;
Preferably, the locating slot on described optical backplane and described laser instrument adjust platform totally one facade to assist for described sharp
Location between light device and described calibration base plate;
Preferably, the laser that described laser instrument is launched is cross or yi word pattern laser, and described light-conductive hole is correspondingly arranged as cross
Shape or yi word pattern structure.
The alignment regulation side of the aligning regulating device of 11. 1 kinds of multi-mode imaging systems as described in any one of claim 1-10
Method, it is characterised in that described alignment control method includes:
Step 1, determines the shaft core position of other imaging system;
Step 2, carries out the axle of PET imaging system and other imaging system described on the basis of the axle center of other imaging system described
The heart is directed at:
Step 2-1, adjusts the height of each altitude mixture control bearing of described PET imaging system aligning regulating device so that it is base
Do not contact with ground, circular hole slab is disassembled from target holder, rely on rolling bearing to promote described PET imaging system horizontal direction
Mobile, make the axle center first slotted hole through two described target holders of other imaging system described;
Step 2-2, adjusts the height of each altitude mixture control bearing so that it is base is placed on ground;
Step 2-3, is installed to described circular hole slab on target holder, adjusts the height of each described altitude mixture control bearing, make described its
The axle center of its imaging system is through the circular hole of two described target holders;
Step 2-4, unloads described target holder from main supporting mechanism, PET frame is installed on main supporting mechanism.
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PCT/CN2017/097765 WO2018040919A1 (en) | 2016-08-30 | 2017-08-17 | Alignment adjusting device for multi-modality imaging system and alignment adjusting method thereof |
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CN106236121B (en) | 2023-11-28 |
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