CN209153723U - A kind of static horizontal computed tomographic scanner - Google Patents
A kind of static horizontal computed tomographic scanner Download PDFInfo
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- CN209153723U CN209153723U CN201821370995.0U CN201821370995U CN209153723U CN 209153723 U CN209153723 U CN 209153723U CN 201821370995 U CN201821370995 U CN 201821370995U CN 209153723 U CN209153723 U CN 209153723U
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Abstract
The utility model discloses a kind of static horizontal computed tomographic scanner, including scanning support, support frame, rotating platform and control platform, scanning support is arranged on the support frame, and carries out vertical lifting along support frame and move；Rotating platform is arranged immediately below scanning support.This static horizontal computed tomographic scanner passes through the motion state of gantry and rotating platform by the way that scanning support to be horizontally mounted, this static horizontal computed tomographic scanner can be made to complete a variety of scanning functions.This static horizontal computed tomographic scanner not only avoid active computer tomography scanner scanning support and scanning bed cantilever design, also solve stationary computers tomography scanner carry out image when finely rebuilding scanning support need the problem of deflecting, to make that the structure of this static horizontal computed tomographic scanner is simple, stability is good.
Description
Technical field
The utility model relates to a kind of static horizontal computed tomographic scanner (hereinafter referred to as static CT scanners), belong to
The field of medical instrument technology.
Background technique
CT (Computed Tomography, computed tomography) scanner is that one kind is made extensively in medical field
Medical diagnostic apparatus has configuration in situation of all-level hospitals at present, and which are mainly applied to the inspections of human body a variety of diseases and position.
As shown in Figure 1, currently used CT scanner, scanning support are placed on the ground vertically, effective scanning plane and
Ground is vertical, that is to say, that patient lies low on scanning bed, and the scanning area that level is sent into CT scanner is scanned inspection.It should
The scanning support of CT scanner and it is scanning bed be all cantilever design, and the former cantilever design can weaken stabilization of equipment performance, need
Additional raising dynamic balance grade or equipment rigidity can just better ensure that picture quality；The cantilever design of the latter will cause scanning
When patient it is sagging within the scope of the plane of scanning motion, and with when scanning patient move forward and backward with scanning bed, sag of chain is different,
It can make to generate certain error when image reconstruction in the scanning bed direction of motion.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of static horizontal computed tomographic scanners.
To achieve the goals above, the utility model adopts the following technical solutions:
A kind of static horizontal computed tomographic scanner, including scanning support, support frame, rotating platform and control platform, institute
It states scanning support to be arranged on support frame as described above, and carries out vertical lifting along support frame as described above and move；The rotating platform setting
Immediately below the scanning support；The control platform is used to control the motion state of the scanning support Yu the rotating platform, with
Switch corresponding scanning function.
Wherein more preferably, the scanning support includes scanning support frame body, radiographic source and detector, and the scanning support frame body is with flat
Mode of the row in ground is arranged on support frame as described above, and the radiographic source is nested on the scanning support frame body, the detector
The outside of the radiographic source is set.
Wherein more preferably, the detector and the radiographic source coaxial line, to form bicyclic horizontal arrangement.
Wherein more preferably, the radiographic source is made of one group of radiographic source of circle distribution.
Wherein more preferably, the detector is made of one group of curved detector of circle distribution.
Wherein more preferably, the dead-center position of the scanning support is higher than the height of patient.
Wherein more preferably, guide frame and driving structure, the guide frame and the drive are provided on support frame as described above
Dynamic structure is connect with the scanning support respectively.
Wherein more preferably, the rotating platform includes pedestal and rotating mechanism, and the pedestal passes through rotary shaft and the rotation
Rotation mechanism connection.
Wherein more preferably, the rotary shaft is connect with the middle position of the pedestal, and the rotary shaft respectively with institute
The axis for stating radiographic source and the detector is overlapped.
Wherein more preferably, it may be provided for the accessory that auxiliary patient's posture is kept on the rotating platform.
Scanning support is horizontally mounted by static state CT scanner provided by the utility model, and rotary flat is arranged immediately below it
Platform can make this static state CT scanner complete a variety of scanning functions by the motion state of gantry and rotating platform.This
Static CT scanner not only avoid current CT scanner scanning support and scanning bed cantilever design, also solve static CT and sweep
It retouches scanning support when instrument progress image is finely rebuild and needs the problem of deflecting, to keep the structure of this static state CT scanner simple, steady
It is qualitative good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing CT scanner；
Fig. 2 is the structural schematic diagram of static CT scanner provided by the utility model；
Fig. 3 is that static state CT provided by the utility model realizes the schematic diagram for sweeping locating plate function；
Fig. 4 is that static state CT provided by the utility model realizes that axis sweeps the schematic diagram 1 of function；
Fig. 5 is that static state CT provided by the utility model realizes that spiral sweeps the schematic diagram 1 of function；
Fig. 6 is that static state CT provided by the utility model realizes that axis sweeps the schematic diagram 2 of function；
Fig. 7 is that static state CT provided by the utility model realizes that spiral sweeps the schematic diagram 2 of function.
Specific embodiment
The technology contents of the utility model are described in further detail in the following with reference to the drawings and specific embodiments.
Static CT scanner is a new direction of CT scanner development, it passes through the ray enough in circumference
The rotation of equivalent helical CT scanners is carried out in source, to realize that equipment does not rotate and completes the scanning to human body.Under normal circumstances, quiet
State CT scanner is difficult to arrange enough radiographic sources in a circumferential direction, if it is desired to which picture quality is preferable, to measured object
When body tomoscan image is finely rebuild, the projection for guaranteeing there are enough multi-angles on circumferencial direction is generally required.According to mesh
The scanning mode of preceding CT scanner, it is necessary to which static CT scanner can be in the deflection of circumferencial direction progress certain angle.And
In view of some CT scanners will meet Whole Body scanning, then in fine rebuild, static CT scanner needs the angle deflected
It spends bigger.
For this purpose, as shown in Fig. 2, the utility model provides a kind of static horizontal CT scanner.The static state CT scanner packet
Include scanning support 3, support frame 4, rotating platform 5, power supply 6 and control platform 7.Wherein, scanning support 3 is set in a manner of being parallel to ground
It sets on support frame 4, and vertical lifting can be carried out along support frame 4 and moved.The setting of rotating platform 5 is immediately below scanning support 3；Electricity
Source 6 is connect with scanning support 3, support frame 4, rotating platform 5 and control platform 7 respectively, control platform 7 respectively with scanning support 3, support
Frame 4 and rotating platform 5 connect.By the motion state of 7 scanning supports 3 of the control platform 77 control and rotating platform 5 (it is static,
Uniform motion etc.), to switch the corresponding scanning function of this static state CT scanner.
Wherein, scanning support 3 includes scanning support frame body 301, radiographic source 302 and detector 303；Scanning support frame body 301 is with flat
Mode of the row in ground is arranged on support frame 4, and radiographic source 302 is nested on scanning support frame body 301, forms this static state CT scan
The scanning area of instrument；Detector 303 is arranged in the outside of radiographic source 302, and with 302 coaxial line of radiographic source so that detector
303 form bicyclic horizontal arrangement with radiographic source 302.
Radiographic source 302 is mainly made of one group of radiographic source of circle distribution.Radiographic source preferably uses vacuum X-ray tube.It should
Radiographic source is scanned the certain thickness level in patient a part for issuing X-ray beam, is received by detector 303
It crosses the X-ray beam of the level and is converted into visible light, digital data transmission is then converted into control by a series of processing
Platform 7 carries out image procossing, to form the faultage image of patient a part.Wherein, radiographic source is configured with temperature conditioning unit and height
Unit is pressed, temperature conditioning unit is used for the temperature of real-time monitoring radiographic source；High voltage unit is for driving radiographic source emitting x-ray.This
Place is classified as temperature conditioning unit and high voltage unit a part of radiographic source, no longer does additional explanation.
Detector 303 is mainly made of one group of curved detector of circle distribution.Wherein, detector is configured with reading electricity
Road, A/D conversion circuit, transmission circuit and temperature conditioning unit etc. will be converted by reading circuit and A/D conversion circuit through detector
After visible light is handled, and it is converted into digital signal and is transmitted to the progress image procossing of control platform 7 by transmission circuit.Temperature control
Unit is used for the temperature of real-time monitoring detector.Herein by reading circuit, A/D conversion circuit, transmission circuit and temperature conditioning unit etc.
It is classified as a part of detector, no longer does additional explanation.
When carrying out CT scan, patient stands on rotating platform 5, by 7 gantry 3 of control platform in support frame 4
On do vertical lifting movement, to complete scanning to patient body a part.In general, this static state CT scanner range
It is the zero point of scanning support 3 at higher point, the dead-center position of scanning support 3 is higher than the height of patient.When patient etc. is to be scanned or sweep
After the completion of retouching, scanning support 3 can be located at or return at zero point, and patient is facilitated to be rotated up and down platform 5.
Support frame 4 is for fixing on the ground；Support frame 4 has for scanning support 3 to be arranged and carries out vertically for scanning support 3
The space of elevating movement.Guide frame 401 and driving structure 402, guide frame 401 and driving knot are provided on support frame 4
Structure 402 is connect with scanning support 3 respectively.Scanning support 3 can be driven to move along guide frame 401 by driving structure 402, thus
Scanning support 3 is allowed to carry out vertical lifting movement on support frame 4.
Specifically, guide frame 401 may include guide rail and sliding block, guide rail is fixed on the inside of support frame 4, and sliding block
One end connect with guide rail, the other end of sliding block is connect with scanning support frame body 301.Therefore, the two sides difference of scanning support frame body 301
Connect with a sliding block, by sliding block drive scanning support frame body 301 moved along guide rail so that scanning support 3 along
Guide rail carries out vertical lifting movement.
Guide frame 401 can also include guide post and linear bearing, and guide post is fixed on the inside of support frame 4, and straight
One end that spool is held is connect with guide rail, and the other end of linear bearing is connect with scanning support frame body 301.Therefore, scanning support frame body 301
Two sides connect respectively with a linear bearing, by linear bearing drive scanning support frame body 301 moved along guide rail, from
And makes scanning support 3 carry out vertical lifting along guide rail and move.It should be noted that the structure of guide frame 401 is without being limited thereto,
It can be selected by engineer according to practical application experience and demand.
Driving structure 402 may include first motor, the first speed reducer and ball-screw, first motor and the first speed reducer
Connection, the first speed reducer are connect with ball-screw, and ball-screw is connect with scanning support frame body 301.First motor is also flat with control
Platform 7 connects, and controls first motor by control platform 7 and drives ball-screw that scanning support frame body 301 is driven to carry out on support frame 4
Vertical lifting movement.Wherein, it is required according to the actual torque of first motor, chooses whether the first speed reducer of addition.When the first electricity
When machine torque is smaller, the first speed reducer can not be used, first motor is directly connect with ball-screw, for driving ball wire
Thick stick drives scanning support 3 to do vertical lifting movement.
Driving structure 402 can also include first motor, the first speed reducer and the first belt gear, first motor with
The connection of first speed reducer, the first speed reducer are connect with the first belt gear, the first belt gear and scanning support frame body
301 connections.Equally, controlling first motor by control platform 7 drives the first belt gear that scanning support frame body 301 is driven to exist
Vertical lifting movement is carried out on support frame 4.Also, it is required according to the actual torque of first motor, chooses whether addition first and subtract
Fast machine.When first motor torque is smaller, can not use the first speed reducer, by first motor directly with the first belt drive
Structure connection, for driving the first belt gear that scanning support 3 is driven to do vertical lifting movement.
Furthermore it is possible to replace the first speed reducer using deceleration belt.Pass through the big belt pulley and small belt pulley of deceleration belt
It matches corresponding belt and realizes that first motor is run with low rotation speed large torque.Equally, the structure of driving structure 402 is also not necessarily limited to
This, can be selected by engineer according to practical application experience and demand.
Rotating platform 5 with patient's relative scanning frame 3 for making rotating motion.The rotating platform 5 includes pedestal 501 and rotation
Rotation mechanism 502, pedestal 501 are connect by rotary shaft with rotating mechanism 502.Wherein, the middle position of rotary shaft and pedestal 501 connects
It connects, and rotary shaft is overlapped with the axis of radiographic source 302 and the bicyclic horizontal arrangement of the composition of detector 303.Pedestal 501
In the underface of scanning support 3, and it is used to support patient；Rotating mechanism 502 is for driving pedestal 501 with patient's relative scanning frame
3 make rotating motion.Also, it can according to need interim auxiliary patient's posture such as chair, bracket of placing on pedestal 501 and keep auxiliary
Tool, additional description is no longer done in the specific structure of accessory, mode, material, type design alternative according to specific needs.
Specifically, rotating mechanism 502 may include the second motor, the second speed reducer and gear drive, the second electricity
Machine is connect with the second speed reducer, and the second speed reducer is connect with gear drive, and gear drive passes through rotary shaft and pedestal
501 connections.Second motor is also connect with control platform 7, controls the second motor-driven gear transmission mechanism by control platform 7
Band moving base 501 rotates movement.Equally, it is required according to the actual torque of the second motor, chooses whether addition second and slow down
Machine.When the second Motor torque is smaller, the second speed reducer can not be used, the second motor is directly connected with gear drive
It connects.For example, can directly be connect with gear drive using straight second motor that drives, for driving gear drive to drive base
Seat 501 makes rotating motion.
Rotating mechanism 502 can also include the second motor, the second speed reducer and the second belt gear, the second motor with
The connection of second speed reducer, the second speed reducer connect with the second belt gear, the second belt gear pass through rotary shaft and
Pedestal 501 connects.Equally, it is done and is revolved by control the second motor driven the second belt gear band moving base 501 of control platform 7
Transhipment is dynamic.Equally, it is required according to the actual torque of the second motor, chooses whether the second speed reducer of addition.When the second Motor torque
When smaller, the second speed reducer can not be used, the second motor is directly connect with the second belt gear, for driving second
Belt gear band moving base 501 makes rotating motion.Also, the structure of rotating mechanism 502 is also not necessarily limited to this, can be by engineer
It is selected according to actual needs with application experience.
Power supply 6 is used to power for this static state CT scanner, and principle is similar with structure type with conventional CT scanners, herein
No longer do additional description.
Control platform 7 is respectively used to the rotary motion of control rotating platform 5, the vertical lifting movement of scanning support 3, radiographic source
Exposure, the acquisition control of curved detector, and realize the functions such as correction, reconstruction, display of image.Its principle and effect with
Doctor's station of conventional CT scanners is consistent, also no longer does additional description herein.For example, control platform 7 includes with FPGA core
Piece is the master controller of core, which connect with computer.It may be implemented to control by computer and master controller cooperation
Each function of platform 7 processed.
The structure of this static state CT scanner is described in detail above, below with reference to Fig. 3~Fig. 7, introduces this static state
The scan method of CT scanner.
Fig. 3 shows a kind of scan method of this static state CT scanner.Specifically, patient station is on the rotating platform, lead to
7 gantry of control platform is crossed in a certain altitude range of opposite human body, vertical lifting is done at the uniform velocity with higher movement velocity
Movement, control is located at a certain radiographic source exposure scan of scanning support, to realize the locating plate of sweeping of current general CT scanner
Function.
Fig. 4 shows a kind of fast scanning method of this static state CT scanner.Specifically, patient station is in rotating platform
On, when scanning support being dropped to position height a certain with respect to human body by control platform 7, each radiographic source successively exposes in gantry
Optical scanning, so that the axis for realizing current general CT scanner sweeps function.
Fig. 5 shows another fast scanning method of this static state CT scanner.Specifically, patient station is in rotating platform
On, vertical lifting movement is at the uniform velocity done in a certain altitude range of opposite human body by 7 gantry of control platform, and control and sweep
Each radiographic source successively exposure scan is retouched on frame, so that the spiral for realizing current general CT scanner sweeps function.
Fig. 6 shows a kind of fine scanning method of this static state CT scanner.Specifically, simultaneously people station is in rotating platform
On, when dropping to position height a certain with respect to human body by 7 gantry of control platform, control rotating platform starts to rotate, when
When rotating platform reaches a certain at the uniform velocity state, each radiographic source successively exposure scan on scanning support, to realize current general CT
The axis of scanner sweeps function.The scan method can obtain in a circumferential direction more compared with the fast scanning method shown in Fig. 4
More projections, reconstruct finer image.Also, this static state CT scanner also solves scanning support needs when image is finely rebuild
The problem of deflection
Fig. 7 shows another fine scanning method of this static state CT scanner.Specifically, patient station is in rotating platform
On, by control platform 7 control rotating platform be rotated up reach a certain at the uniform velocity state when, gantry decline simultaneously is reaching
The opposite a certain position height of human body advances at the uniform velocity state, realizes that scanning support is at the uniform velocity done in a certain altitude range of opposite human body
Vertical lifting movement, and each radiographic source successively exposure scan in gantry, to realize current general CT scanner
Spiral sweeps function.The scan method can equally obtain more in a circumferential direction compared with the fast scanning method shown in Fig. 5
Projection, reconstructs finer image.Also, this static state CT scanner also solves scanning support when image is finely rebuild and needs partially
The problem of turning.
In conclusion it is provided by the utility model static state CT scanner by the way that scanning support is horizontally mounted, and its just
Rotating platform is arranged in lower section, can be with by the motion state (including static, uniform motion etc.) of gantry and rotating platform
This static state CT scanner is set to complete a variety of scanning functions.Also, this static state CT scanner not only avoids current CT scanner
Scanning support and scanning bed cantilever design also solve scanning support when static CT scanner progress image is finely rebuild and need to deflect
The problem of, to make that the structure of this static state CT scanner is simple, stability is good.
Static horizontal computed tomographic scanner provided by the utility model is described in detail above.To this
For the those skilled in the art in field, it is done under the premise of without departing substantially from the utility model in essence spirit any aobvious and easy
The change seen will all belong to the protection scope of the utility model patent power.
Claims (10)
1. a kind of static horizontal computed tomographic scanner, it is characterised in that including scanning support, support frame, rotating platform and control
Platform, the scanning support are arranged on support frame as described above, and carry out vertical lifting along support frame as described above and move；The rotary flat
Platform is arranged immediately below the scanning support；The control platform is used to control the movement shape of the scanning support Yu the rotating platform
State, to switch corresponding scanning function.
2. static horizontal computed tomographic scanner as described in claim 1, it is characterised in that:
The scanning support includes scanning support frame body, radiographic source and detector, and the scanning support frame body is in a manner of being parallel to ground
It is arranged on support frame as described above, the radiographic source is nested on the scanning support frame body, and the detector is arranged in the ray
The outside in source.
3. static horizontal computed tomographic scanner as claimed in claim 2, it is characterised in that:
The detector and the radiographic source coaxial line, to form bicyclic horizontal arrangement.
4. static horizontal computed tomographic scanner as claimed in claim 3, it is characterised in that:
The radiographic source is made of one group of radiographic source of circle distribution.
5. static horizontal computed tomographic scanner as claimed in claim 4, it is characterised in that:
The detector is made of one group of curved detector of circle distribution.
6. static horizontal computed tomographic scanner as claimed in claim 2, it is characterised in that:
The dead-center position of the scanning support is higher than the height of patient.
7. static horizontal computed tomographic scanner as described in claim 1, it is characterised in that:
Be provided with guide frame and driving structure on support frame as described above, the guide frame and the driving structure respectively with it is described
Scanning support connection.
8. static horizontal computed tomographic scanner as claimed in claim 2, it is characterised in that:
The rotating platform includes pedestal and rotating mechanism, and the pedestal is connect by rotary shaft with told rotating mechanism.
9. static horizontal computed tomographic scanner as claimed in claim 8, it is characterised in that:
The rotary shaft is connect with the middle position of the pedestal, and the rotary shaft respectively with the radiographic source and the spy
The axis for surveying device is overlapped.
10. static horizontal computed tomographic scanner as described in claim 1, it is characterised in that:
The accessory for assisting patient's posture to keep is provided on the rotating platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821370995.0U CN209153723U (en) | 2018-08-24 | 2018-08-24 | A kind of static horizontal computed tomographic scanner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821370995.0U CN209153723U (en) | 2018-08-24 | 2018-08-24 | A kind of static horizontal computed tomographic scanner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111184528A (en) * | 2020-03-12 | 2020-05-22 | 上海交通大学 | Vertical type computed tomography device based on X-ray source array |
| CN112390204A (en) * | 2020-12-02 | 2021-02-23 | 明峰医疗***股份有限公司 | Lifting platform, uniform-speed lifting method for lifting platform and computer-readable storage medium |
| CN113456102A (en) * | 2021-07-27 | 2021-10-01 | 赛诺威盛科技(北京)股份有限公司 | Scanning lifting mechanism, CT scanning device and CT scanning system |
-
2018
- 2018-08-24 CN CN201821370995.0U patent/CN209153723U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111184528A (en) * | 2020-03-12 | 2020-05-22 | 上海交通大学 | Vertical type computed tomography device based on X-ray source array |
| CN112390204A (en) * | 2020-12-02 | 2021-02-23 | 明峰医疗***股份有限公司 | Lifting platform, uniform-speed lifting method for lifting platform and computer-readable storage medium |
| CN113456102A (en) * | 2021-07-27 | 2021-10-01 | 赛诺威盛科技(北京)股份有限公司 | Scanning lifting mechanism, CT scanning device and CT scanning system |
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