CN110237440A - A kind of clinac therapeutic device - Google Patents
A kind of clinac therapeutic device Download PDFInfo
- Publication number
- CN110237440A CN110237440A CN201910443340.4A CN201910443340A CN110237440A CN 110237440 A CN110237440 A CN 110237440A CN 201910443340 A CN201910443340 A CN 201910443340A CN 110237440 A CN110237440 A CN 110237440A
- Authority
- CN
- China
- Prior art keywords
- gear
- lathe bed
- lifting
- treatment head
- bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 56
- 229940030792 clinac Drugs 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 136
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 45
- 229910052721 tungsten Inorganic materials 0.000 claims description 45
- 239000010937 tungsten Substances 0.000 claims description 45
- 230000033001 locomotion Effects 0.000 claims description 25
- 230000009467 reduction Effects 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 238000001959 radiotherapy Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008450 motivation Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 231100000987 absorbed dose Toxicity 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002786 image-guided radiation therapy Methods 0.000 description 1
- 238000002721 intensity-modulated radiation therapy Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1077—Beam delivery systems
- A61N5/1081—Rotating beam systems with a specific mechanical construction, e.g. gantries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
- A61N2005/1097—Means for immobilizing the patient
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
The present invention provides a kind of clinac therapeutic device, therapeutic bed is supported including accelerator rack, treatment head and both-end, accelerator rack includes fixed frame, rotary frame, gear rotary positioning apparatus and harness towing chain mechanism, rotary frame is connected by gear rotary positioning apparatus and fixed frame rotation, rotary frame is provided with treatment head mounting rack, harness is connect by harness towing chain mechanism with the treatment head on treatment head mounting rack, and it includes therapeutic bed and auxiliary support apparatus that both-end, which supports therapeutic bed,.Can work in coordination completion treatment, and treatment head can be improved treatment head positioning accuracy, adjustment rigidity and speed, and guarantee is fast and accurately treated；Guarantee the quick rotational positioning of clinac using gear rotary positioning apparatus; effectively raise positioning accuracy and rotating stiff; it is further ensured that and stable electric power and data command transmission is provided while clinac quick rotational positioning for accelerator, and effective protection harness.
Description
Technical field
The present invention relates to medical accelerator manufacturing technology fields, particularly relate to a kind of clinac therapeutic device.
Background technique
In recent years, radiotherapy is one of important method of oncotherapy, and clinac is that radiotherapy uses
Most equipment.Radiation therapy method includes common radiotherapy, intensity-modulated radiation therapy, image guided radiation therapy, three-dimensional fixed
To radiotherapy etc..The effect of clinac treatment head is to provide the radiation for meeting certain uniformity and symmetry requirement
Line, and radiation streaming is limited in certain region, obtain the radiation of the different sizes, shape and angle of clinical needs
It is wild.Over the course for the treatment of, the positioning accuracy and insufficient rigidity for the treatment of head rotary components cannot achieve existing accelerator treatment head
Fast and accurately positioning adjustment and treatment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of clinac therapeutic devices, can be rapidly and accurately
It is treated.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of clinac therapeutic device, it is described
Clinac therapeutic device includes accelerator rack, treatment head and both-end support therapeutic bed, the accelerator rack packet
Fixed frame, rotary frame, gear rotary positioning apparatus and harness towing chain mechanism are included, the rotary frame is revolved by the gear
Rotation positioning device and fixed frame rotation connect, and harness is connect by harness towing chain mechanism with rotary frame, the rotation
Rack is provided with treatment head mounting rack, and the harness is connect by harness towing chain mechanism with the treatment head on treatment head mounting rack,
The both-end support therapeutic bed includes therapeutic bed and auxiliary support apparatus；
The treatment head includes diaphragm, treatment head rotating mechanism, light field component, ionisation chamber, quasi- block and just standard is bored, described
Treatment head rotating mechanism connect with diaphragm and the diaphragm is driven to rotate, and the light field component is arranged above the diaphragm, institute
It states ionisation chamber to be arranged above the light field component, the quasi- block is arranged above the ionisation chamber, the just quasi- cone setting
Above quasi- block；
The treatment head rotating mechanism includes rotary teeth wheel disc, treatment head rotating electric machine and transmission gear, the treatment head
Rotating electric machine is connect with transmission gear, and the transmission gear is engaged with rotary teeth wheel disc, and the treatment head rotating electric machine passes through biography
Moving gear drives rotary teeth wheel disc rotation.
Preferably, the treatment head rotating electric machine passes through right-angle reduction device, worm screw and the transmission gear phase on turntable bearing
Connection, worm screw connect with transmission gear, and the transmission gear is turbine, and the treatment head rotating mechanism is provided with absolute encoding
Device carries out closed-loop control to rotary teeth wheel disc position.
Preferably, the diaphragm includes upper diaphragm and lower diaphragm, and the upper diaphragm is arranged above the lower diaphragm；It is described
The upper transversely opened and closed setting of diaphragm, the lower diaphragm longitudinally folding setting；
The upper diaphragm includes the first tungsten block, the second tungsten block, the first arc-shaped slide rail, the first tungsten block and the second tungsten block edge
First arc-shaped slide rail is transversely opened and closed, and the lower diaphragm includes third tungsten block, the 4th tungsten block, the second arc-shaped slide rail, the third tungsten
Block and the 4th tungsten block are longitudinally opened and closed along the second arc-shaped slide rail, and the upper diaphragm and lower diaphragm are respectively arranged with motor absolute encoding
Device and absolute position magnetic grid are examined by the two-position for the absolute position magnetic grid installed on the absolute type encoder and arc guide rail
It surveys to carry out closed-loop control and mutually monitoring；
The first tungsten block, the second tungsten block, the first arc-shaped slide rail, third tungsten block, the 4th tungsten block and the second arc-shaped slide rail are same
Heart setting, tungsten block cross sectional shape are sector.
Preferably, the quasi- block is arranged on multistation circular dividing table, adjusts quasi- block with multistation circular dividing table, described more
Station circular dividing table is three station circular dividing table tune, including ray expansion station, general puts station and maintenance station, multistation indexing
Platform is connect with rotary teeth wheel disc, and the multistation circular dividing table includes servo motor by worm and gear, and the ionisation chamber is provided with
Ionisation chamber slideway, the ionisation chamber are slidably connected by ionisation chamber slideway.
Preferably, the gear rotary positioning apparatus includes: driving motor, driving gear, rotating disk gear and plate-like
Gear-bearing, the plate-like gear-bearing are ring discoid gear-bearing, and the plate-like gear-bearing is connect with fixed frame, institute
It states rotating disk gear set to be rotatablely connected in plate-like gear-bearing and plate-like gear-bearing, the driving motor and the fixation
Rack is fixedly connected, and the output end of driving motor is connect with the driving gear, and the driving gear is nibbled with rotating disk gear
Merge and drive the rotation of rotating disk gear, rotating disk gear outer surface is provided with mounting hole, and the rotary frame passes through
Mounting hole is connect with rotating disk gear, and the driving motor is provided with right-angle reduction device and torque guard, the sliding tooth
Wheel is provided with tensioner.
Preferably, the gear rotary positioning apparatus is provided with rotary position-limit mechanism, the rotary position-limit mechanism and fixation
Rack is fixedly connected, and the clinac rack gear rotary positioning apparatus is provided with gear position adjustment mechanism and peace
Full fixed mechanism, the gear position adjustment mechanism are fixedly connected with fixed frame, the safe fixed mechanism and fixed frame
It is fixedly connected.
Preferably, the harness towing chain mechanism includes: drag chain trapped orbit, drag chain swing-around trajectory and drag chain, the drag chain
Trapped orbit is connect with fixed frame, and the drag chain swing-around trajectory is connect with rotary frame, and the drag chain is sleeved on drag chain and fixes
In track and drag chain swing-around trajectory；
When rotary frame rotates in the forward direction, the drag chain in drag chain trapped orbit is raised, and the drag chain being raised packs up suit
In drag chain swing-around trajectory；When rotary frame reversely rotates, the drag chain in drag chain swing-around trajectory falls, and the drag chain of whereabouts is received
It rises and is sleeved in drag chain trapped orbit.
Preferably, the therapeutic bed includes mobile lathe bed and lathe bed bracket, and the mobile lathe bed is arranged in the lathe bed branch
Above frame, the lathe bed bracket is provided with lathe bed elevating mechanism, and the mobile lathe bed is provided with lathe bed transverse moving mechanism and bed
Body longitudinal moving mechanism, the lathe bed bracket control the mobile lathe bed lifting above lathe bed bracket, institute by lathe bed elevating mechanism
Mobile lathe bed is stated to move by lathe bed transverse moving mechanism and the mobile lathe bed transverse shifting of lathe bed longitudinal moving mechanism control and longitudinal direction
Dynamic, the lathe bed elevating mechanism, lathe bed transverse moving mechanism and lathe bed longitudinal moving mechanism are respectively arranged with feedback transducer；
One end of the therapeutic bed is arranged in the auxiliary support apparatus, is used to support the mobile lathe bed of therapeutic bed stretching,
And with mobile lathe bed synchronization lifting and transverse shifting；
The lathe bed elevating mechanism is provided with the first feedback transducer, and lathe bed transverse moving mechanism is provided with the second feedback biography
Sensor, lathe bed longitudinal moving mechanism are provided with third feedback transducer, first feedback transducer and the second feedback transducer
For absolute type encoder, the third feedback transducer is stay-supported type displacement sensor.
Preferably, first feedback transducer to lifting position carry out closed-loop control, the second feedback transducer for pair
Lateral displacement position carries out closed-loop control, and third feedback transducer is used to carry out closed-loop control to longitudinal movement position；
The lathe bed bracket includes lathe bed base and lifting support, and the lathe bed base is provided with lifting sliding rail, the liter
Descending branch frame is connect by lifting sliding rail with lathe bed base lifting carriage, and the lifting sliding rail is lathe bed described in Composite Double stroke guide rail
Elevating mechanism includes first motor, first gear and the first rack gear, and the first motor is fixedly connected with lifting support, and described
One rack gear is fixedly connected with lathe bed base, and the first motor is connect by first gear with the first rack gear gear teeth, and described first
Motor drives lifting support lifting moving.
The mobile lathe bed is arranged above the lifting support, and the mobile lathe bed bottom passes through lathe bed transverse shifting machine
Structure is connect with lifting support, the lathe bed transverse moving mechanism include the second motor, second gear and the second rack gear, described second
Motor is fixedly connected with mobile lathe bed bottom, and second rack gear is fixedly connected with lifting support, and second motor passes through the
Two gears are connect with the second rack gear gear teeth, and second motor drives mobile lathe bed transverse shifting.
The mobile lathe bed is provided with longitudinal movement rail and bed board, and the bed board and longitudinal movement rail are slidably connected,
The bed board by lathe bed longitudinal moving mechanism with move lathe bed connect, the lathe bed longitudinal moving mechanism include third motor,
Third gear and synchronous belt, the bed board bottom are provided with sliding block, and the sliding block passes through with synchronous band connection, the third motor
Third gear drives mobile lathe bed longitudinal movement with synchronous band connection, the third motor.
Preferably, the auxiliary support apparatus includes that device column, support plate, column support and the lifting at both ends laterally move
Motivation structure, the lifting transverse moving mechanism attachment device column and support plate, for controlling support plate lifting and transverse shifting,
The column support is arranged under support plate, and the device column at the column support and both ends connects；
The device column at the both ends is respectively arranged with lead screw and rotating electric machine, and the rotating electric machine is connect with the lead screw
And lead screw is driven to rotate；
The lifting transverse moving mechanism includes lifting slider, connecting rod, and the lifting slider is separately positioned on the dress at both ends
It sets on the lead screw of column and is connect with lead screw lifting carriage, the connecting rod two end is hinged with lifting slider and support plate respectively；Institute
It states device column and is provided with column guide rail, the lifting slider is slided up and down by the column guide rail, and the connecting rod is parallel connection
Connecting rod.
The advantageous effects of the above technical solutions of the present invention are as follows:
In above scheme, therapeutic bed is supported by setting accelerator rack, treatment head and both-end, can work in coordination completion
Treatment, diaphragm, treatment head rotating mechanism, light field component, ionisation chamber, quasi- block is arranged for treatment head and just standard is bored, treatment head rotation
Motor drives rotary teeth wheel disc rotation by transmission gear, can be improved treatment head positioning accuracy, adjustment rigidity and speed, guarantees
Fast and accurately treat；It, can by setting fixed frame, runing rest, gear rotary positioning apparatus and harness towing chain mechanism
The quick rotational positioning for guaranteeing clinac using gear rotary positioning apparatus, effectively raises positioning accuracy and rotation
Turn rigidity, is accelerator while capable of being further ensured that clinac quick rotational positioning using harness towing chain mechanism
Electric power and data command transmission, and effective protection harness are provided.
Detailed description of the invention
Fig. 1-1 to 1-5 is the clinac therapeutic device structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the clinac treatment head cross section structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the clinac rack construction schematic diagram of the embodiment of the present invention；
Fig. 4 is the gear rotary positioning apparatus structural schematic diagram of the embodiment of the present invention；
Fig. 5 is the harness towing chain mechanism structural schematic diagram of the embodiment of the present invention；
Fig. 6 is the clinac treatment head cross section structure schematic diagram of the embodiment of the present invention；
Fig. 7 is the clinac treatment head structural schematic diagram of the embodiment of the present invention；
Fig. 8 is the therapeutic bed structure chart of the embodiment of the present invention；
Fig. 9 is the therapeutic bed structure chart of the embodiment of the present invention；
Figure 10 is the auxiliary support apparatus structure chart of the embodiment of the present invention.
[main element symbol description]
Accelerator rack 1；Treatment head 2；Both-end supports therapeutic bed 3；
Fixed frame 101；Runing rest 102；Gear rotary positioning apparatus 103；Treatment head mounting rack 104；Driving motor
105；Drive gear 106；Rotating disk gear 107；Plate-like gear-bearing 108；Mounting hole 109；Rotary position-limit mechanism 110；It adjusts
Complete machine structure 111；Safe fixed mechanism 112；Drag chain trapped orbit 113；Drag chain swing-around trajectory 114；Drag chain 115；Drag chain backplate
116；Beam entrance 117；Harness outlet 118；
Treatment head rotating mechanism 202；Light field component 203；Ionisation chamber 204；Quasi- block 205；Just quasi- cone 206；Rotate gear
Disk 207；Treatment head rotating electric machine 208；Transmission gear 209；Gear-bearing 210；Upper diaphragm 211；Lower diaphragm 212；First tungsten block
213；Second tungsten block 214；First arc-shaped slide rail 215；Third tungsten block 216；4th tungsten block 217；Second arc-shaped slide rail 218；Multiplexing
Position circular dividing table 219；Reflective mirror 220；Cold light source 221；
Therapeutic bed 301；Auxiliary support apparatus 302；Mobile lathe bed 303；Lathe bed bracket 304；Lathe bed elevating mechanism 305；Bed
Body pedestal 306；Lifting support 307；Lifting sliding rail 308；First motor 309；First gear 310；First rack gear 311；Second electricity
Machine 312；Second gear 313；Second rack gear 314；Moving guide rail 315；Third motor 316；Device column 317；Support plate 318；
Column support 319；Go up and down transverse moving mechanism 320；Lead screw 321；Rotating electric machine 322；Lifting slider 323；Connecting rod 324；Column
Guide rail 325；Idler wheel 326；Articulation piece 327；
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
As shown in Fig. 1-1 to 3, a kind of clinac therapeutic device of the embodiment of the present invention, the medical linear
Accelerator include accelerator rack 1, treatment head 2 and both-end support therapeutic bed 3, the accelerator rack include fixed frame 101,
Runing rest 102, gear rotary positioning apparatus 103 and harness towing chain mechanism, the runing rest 102 are rotated by the gear
Positioning device 103 and the fixed frame 101 rotation connect, and harness is connect by harness towing chain mechanism with runing rest 102；
The runing rest 102 is provided with treatment head mounting rack 104, and the harness passes through harness towing chain mechanism and treatment head
Treatment head 2 on mounting rack 104 connects, and the both-end support therapeutic bed 3 includes therapeutic bed 301 and auxiliary support apparatus 302；
The treatment head includes diaphragm 201, treatment head rotating mechanism 202, light field component 203, ionisation chamber 204, quasi- block
205 connect with diaphragm 201 with just quasi- cone 206, the treatment head rotating mechanism 202 and the diaphragm 201 are driven to rotate, the light
Wild component 203 is arranged above the diaphragm 201, and the ionisation chamber 204 is arranged above the light field component 203, described equal
Quasi- block 205 is arranged above the ionisation chamber 204, and the just quasi- cone 206 is arranged above quasi- block 205；Wherein, diaphragm 201
Lower section is also provided with leafy intensity-modulated collimator；
The treatment head rotating mechanism 202 includes rotary teeth wheel disc 207, treatment head rotating electric machine 208 and transmission gear
209, the treatment head rotating electric machine 208 is connect with transmission gear 209, and the transmission gear 208 is nibbled with rotary teeth wheel disc 207
It closes, the treatment head rotating electric machine 208 drives rotary teeth wheel disc 207 to rotate by transmission gear 208.
The clinac of the embodiment of the present invention passes through setting accelerator rack, treatment head and both-end support treatment
Bed, can work in coordination completion treatment, and diaphragm, treatment head rotating mechanism, light field component, ionisation chamber, quasi- block is arranged in treatment head
With first quasi- cone, treatment head rotating electric machine drives rotary teeth wheel disc rotation by transmission gear, can be improved treatment head positioning accuracy,
Rigidity and speed are adjusted, guarantee is fast and accurately treated；By the way that fixed frame, runing rest, gear rotary positioning apparatus is arranged
With harness towing chain mechanism, it can guarantee the quick rotational positioning of clinac using gear rotary positioning apparatus, effectively
Improve positioning accuracy and rotating stiff, can be further ensured that clinac quickly revolves using harness towing chain mechanism
Electric power and data command transmission, and effective protection harness are provided while turning positioning for accelerator.
Specifically, as shown in Figures 3 and 4, the gear rotary positioning apparatus include: driving motor 105, driving gear 106,
Rotating disk gear 107 and plate-like gear-bearing 108, the plate-like gear-bearing 108 is ring discoid gear-bearing, described
Plate-like gear-bearing 108 is connect with fixed frame 101, and the rotating disk gear 107 is sleeved on plate-like gear-bearing 108 and disk
Shape gear-bearing 108 is rotatablely connected, and the driving motor 102 is fixedly connected with the fixed frame 101, driving motor 102
Output end is connect with the driving gear 106, and the driving gear 106 engages with rotating disk gear 107 and drives rotating disk
Shape gear 107 rotates, and 107 outer surface of rotating disk gear is provided with mounting hole 109, and the runing rest 102 passes through peace
Dress hole 109 is connect with rotating disk gear 107.
It, can by setting driving motor, driving gear, rotating disk gear and plate-like gear-bearing in the present embodiment
The rotation of rotating disk gear and positioning are driven by engagement, it can be in the case where rotating disk gear installs big weight treatment head
Guarantee the rigidity of rotation and the precision of positioning, improves bit rates and accuracy.
Preferably, the driving motor 105 is servo motor, and the driving motor 105 is provided with right-angle reduction device and torsion
Square protector, the driving gear 106 are provided with tensioner.
In the present embodiment, by setting servo motor and it is provided with right-angle reduction device and torque guard, can guaranteed
Guarantee rotation speed in the case where torque, improves the reliability and accuracy of motor；Driving gear is provided with tensioner can be into
One step guarantees that driving motor is engaged with rotating disk gear, improves rotating stiff and is fitted close degree.
Preferably, the gear rotary positioning apparatus is provided with rotary position-limit mechanism 110, the rotary position-limit mechanism 110
It is fixedly connected with fixed frame 101.
The rotary position-limit mechanism 110 includes arc-shaped rail, axial line and the rotating disk gear of arc-shaped rail
Axial line coincides, and arc-shaped rail is equipped with slide, and slide is moved along arc-shaped rail, the outer end phase of slide and reset tension spring
Even, arcuately center position extends be fixed in clinac rack inwards reset tension spring, one end of arc-shaped rail
It being switched equipped with positive limit travel, the other end of arc-shaped rail is switched equipped with negative limit travel, and the slide is matched with collision block,
Collision block is mounted on clinac runing rest.Preferably, two ends of the arc-shaped rail are respectively equipped with attenuator,
The attenuator is fixedly connected with clinac rack, and the shock-absorbing bar of attenuator is matched with block.
In the present embodiment, rotating disk gear can be avoided by rotary position-limit mechanism and excessively rotate, and guarantee rotating disk
The quick rotation of shape gear, to improve locating speed.
Preferably, the clinac rack gear rotary positioning apparatus is provided with gear position adjustment mechanism
111 and safe fixed mechanism 112, the gear position adjustment mechanism 11 connect calmly with fixed frame solid 101, the fixation safely
Mechanism 112 is fixedly connected with fixed frame 1.
Preferably, as shown in figure 5, the harness towing chain mechanism includes: drag chain trapped orbit 113, drag chain swing-around trajectory 114
With drag chain 115, the drag chain trapped orbit 113 is connect with fixed frame 101, the drag chain swing-around trajectory 114 and runing rest
102 connections, the drag chain 115 are sleeved in drag chain trapped orbit 113 and drag chain swing-around trajectory 114.Preferably, the drag chain
115 be hollow drag chain, and the harness penetrates hollow drag chain.Preferably, setting above the track groove of the drag chain swing-around trajectory 114
There is drag chain backplate 116.
The drag chain swing-around trajectory 114 is annular drag chain track.The drag chain backplate 116 be arc-shaped backplate and with fixation
Rack 101 connects.The drag chain trapped orbit 113 is arc-shaped drag chain track.The drag chain 115 is hollow drag chain, the line
Beam penetrates hollow drag chain.
Preferably, one end of the drag chain trapped orbit 1 is provided with beam entrance 117, and the drag chain swing-around trajectory 114 is set
It is equipped with harness outlet 118, the harness outlet 118 is corresponding with 2 position for the treatment of head of clinac therapeutic device.It is described
The both ends of drag chain 115 are fixedly connected with beam entrance 117 and harness outlet 118 respectively.
The clinac therapeutic device harness drag chain of the embodiment of the present invention by setting drag chain trapped orbit, drags
Chain swing-around trajectory and drag chain can both guarantee that the treatment head on runing rest and runing rest existed in the case where harness connects
Quick rotational positioning treatment within the scope of ± 360 °, and harness is protected, it ensure that the control transmission of electric power, water, gas and data, mention
High equipment dependability, structure is simple, and price is lower, and reliability and service life are high.
When runing rest rotates in the forward direction, the drag chain in drag chain trapped orbit is raised, and the drag chain being raised packs up suit
In drag chain swing-around trajectory；When runing rest reversely rotates, the drag chain in drag chain swing-around trajectory falls, and the drag chain of whereabouts is received
It rises and is sleeved in drag chain trapped orbit.The present invention can guarantee that the harness in therapeutic device rotational positioning therapeutic process is servo-actuated, and
It reduces harness abrasion and influences.
Preferably, the clinac therapeutic device is provided with rotary position-limit mechanism, the harness drag chain and institute
State rotary position-limit mechanism cooperation.The rotary position-limit mechanism is fixedly connected with fixed frame, and the rotary position-limit mechanism includes circle
Arc-shaped guide rail, the axial line of arc-shaped rail and the axial line of runing rest coincide, and arc-shaped rail is equipped with slide, slide
It is moved along arc-shaped rail, slide is connected with the outer end of reset tension spring, and arcuately center position extends fixation to reset tension spring inwards
On fixed frame, one end of arc-shaped rail is switched equipped with positive limit travel, and the other end of arc-shaped rail is limited equipped with cathode
Travel switch, the slide are matched with collision block, and collision block is mounted on runing rest.
Two ends of the arc-shaped rail are respectively equipped with attenuator, and the attenuator is fixed with clinac rack
Connection, the shock-absorbing bar of attenuator are matched with block.
In the present embodiment, by rotary position-limit mechanism can treatment head operated within the scope of ± 360 ° and avoid excessively rotating,
Effective protection harness and drag chain play the role of safe spacing, and then guarantee quickly rotation, improve locating speed.
Specifically, the treatment head rotating electric machine 208 is connected by right-angle reduction device, worm screw and transmission gear 209, worm screw
It is connect with transmission gear, the transmission gear 209 is turbine, and the treatment head rotating mechanism 202 is provided with absolute type encoder
Closed-loop control is carried out to rotary teeth wheel disc position.
Wherein, treatment head rotating mechanism 202 can be supported by four point contacts band gear-bearing 210, treatment head rotating electric machine
For servo motor, servo motor drives rotary teeth wheel disc 207 by right-angle reduction device and worm and gear, makes treatment head at the centers of grade
Radiation field size at any angle is formed at plane, while being provided with absolute type encoder and doing closed-loop control, so that it is flat at the centers of grade
Precise angular positions at face are up to 0.1 °.Just quasi- cone 206 can be fixed on the stator for the treatment of head rotating mechanism 202, be used for
The primary radiation for stopping the radiation source outside the range of greatest irradiation open country to generate.
The clinac treatment head of the embodiment of the present invention, by the way that diaphragm, treatment head rotating mechanism, light field group is arranged
Part, ionisation chamber, quasi- block and first quasi- cone, treatment head rotating electric machine pass through transmission gear and rotary teeth wheel disc are driven to rotate, Neng Gouti
High treatment head positioning accuracy, adjustment rigidity and speed, guarantee are fast and accurately treated.
Specifically, as shown in Figures 6 and 7, the diaphragm 201 includes upper diaphragm 211 and lower diaphragm 212, the upper diaphragm 211
It is arranged above the lower diaphragm 212；The transversely opened and closed setting of the upper diaphragm 211, the longitudinal folding setting of the lower diaphragm 212.
The upper diaphragm 211 includes the first tungsten block 213, the second tungsten block 214, the first arc-shaped slide rail 215, the first tungsten block 213 and the
Two tungsten blocks 214 are transversely opened and closed along the first arc-shaped slide rail 215, the lower diaphragm 212 include third tungsten block 216, the 4th tungsten block 217,
Second arc-shaped slide rail 218, the third tungsten block 216 and the 4th tungsten block 217 along the longitudinal folding of the second arc-shaped slide rail 218, it is described on
Diaphragm 211 and lower diaphragm 212 carry out closed-loop control by absolute type encoder.Preferably, the first tungsten block 213, the second tungsten
Block 214, the first arc-shaped slide rail 215, third tungsten block 216, the 4th tungsten block 217 and the second arc-shaped slide rail 218 are arranged concentrically.
Wherein, the cross section of four tungsten blocks is sector, and can be rotated centered on independent diffraction source, with motion mode phase
Symbol, so that compact-sized.It can be formed at equal central planes by the folding of upper diaphragm and lower diaphragm any no more than 400mm
Rectangle radiation field size, while upper diaphragm and lower diaphragm are designed with absolute position magnetic on motor absolute type encoder and arc-shaped slide rail
2 position detections of grid, the latter are used for closed-loop control, the former is used as detection, so that it is waiting the motion positions essence at central planes
Degree is better than 0.1mm, while can malfunction to avoid some position sensor, greatly improves reliability.
Specifically, the quasi- block 205 is arranged on multistation circular dividing table 219, quasi- block is adjusted with multistation circular dividing table.
The multistation circular dividing table 219 be three station circular dividing table tune, including ray expansion station, it is general put station and maintenance station.It is preferred that
, the multistation circular dividing table 219 is connect with rotary teeth wheel disc 207, and the multistation circular dividing table 219 passes through including servo motor
Worm and gear.
Wherein, quasi- block setting is below the just quasi- cone, it is different using uptake of the substance thickness difference to radiation and
It realizes the expansion to X-radiation intensity distribution, obtains the dosage distribution for meeting clinical treatment requirement.Quasi- block can be by servo motor
Driven by worm and gear, can rotate to different angle, thus realize ray expansion station, it is general put station and repair station cut
It changes, flexibility ratio is higher, and function is more comprehensive.
Preferably, the ionisation chamber 204 is provided with ionisation chamber slideway, and the ionisation chamber is connected by the sliding of ionisation chamber slideway
It connects.The light field component 203 includes reflective mirror 220 and cold light source 221, and the reflective mirror 220 and cold light source 221 are arranged in parallel.
Ionisation chamber setting below quasi- block, is being used to measure amount of radiation related with absorbed dose.Ionisation chamber can be set
Linear guide is set, ionisation chamber can be skidded off manually easy to repair and is resetted.
Light field component is arranged below the ionisation chamber, the arc that upper diaphragm is formed for that will radiate wild visualization before treating
At shape space, so that compact-sized.Light field component can be made of multiple material makes it have uniform radiation absorption rate, simultaneously
It is adjustable manually that cold light source can have three directions, keeps its relative reflection mirror and cold light source symmetrical.
Drag chain component is used to play protection and draw for cable, and the inner cavity for the treatment of head rotating mechanism is arranged in, so that
It is compact-sized, succinctly.The design of drag chain member internal walls has drag chain baffle, guarantees treatment head in each state, drag chain is set
It is swung in space.
The clinac treatment head of the embodiment of the present invention, has the advantage that
Treatment head rotating mechanism is supported by four point contacts band gear-bearing, has good angular rigidity；Led to by servo motor
Level-one right-angle reduction device and first-stage worm gear worm drive are crossed, drive gap is small；Design has absolute type encoder to do closed-loop control, protects
Card control precision；This 3 points ensure that the positioning accuracy and running stability of rotary part simultaneously.The design for the treatment of head rotating mechanism
There is biggish window, cooperation rotation can be used for quasi- block repairing type, ionisation chamber disassembly, the tune of reflecting mirror wiping and cold light lamp simultaneously
Section.
2. quasi- block part drives equal monolith to rotate to different angle by servo motor by worm and gear, penetrated to realize
Line expansion station, the general switching put station and repair station, have multi-functional and good maintainability.By Hall sensor,
Guarantee the repetitive positioning accuracy of ray expansion station.
3. light field component is made of the uniform radiation absorption rate that makes it have multiple material, guarantee that radiation field size inner rays are uniform
Property.Reflecting mirror is fixed on the arc space of diaphragm component, so that compact-sized.
4. 4 tungsten blocks of diaphragm can rotate centered on independent diffraction source, can be formed at equal central planes no more than 400mm
Arbitrary rectangle radiation field size；It is supported by arc containing gear guide, the pinion gear that is meshed is subtracted by servo motor by planet+right angle
Fast device driving, has biggish reduction ratio, guarantees enough output torques；, while design has absolute type encoder to do closed loop control
System, so that it is waiting the motion positions precision at central planes to be up to 0.1mm.Tungsten door is cambered design, with motion mode phase
Symbol, so that compact-sized.
5. drag chain is designed in treatment head rotating mechanism inner cavity, so that it is compact-sized, succinctly.
Specifically, the therapeutic bed 301 includes mobile lathe bed 303 and lathe bed bracket 304, the shifting as shown in Figure 8,9, 10
Dynamic lathe bed 303 is arranged above the lathe bed bracket 304, and the lathe bed bracket 304 is provided with lathe bed elevating mechanism 305, described
Mobile lathe bed 303 is provided with lathe bed transverse moving mechanism and lathe bed longitudinal moving mechanism, and the lathe bed bracket 304 passes through lathe bed liter
The mobile lathe bed 303 that descending mechanism 305 controls 304 top of lathe bed bracket is gone up and down, and the mobile lathe bed 303 is laterally moved by lathe bed
Motivation structure and lathe bed longitudinal moving mechanism control mobile 303 transverse shifting of lathe bed and longitudinal movement, the lathe bed elevating mechanism
305, lathe bed transverse moving mechanism and lathe bed longitudinal moving mechanism are respectively arranged with feedback transducer；
One end of the therapeutic bed 301 is arranged in the auxiliary support apparatus 302, is used to support the stretching of therapeutic bed 301
Mobile lathe bed 303, and with mobile 303 synchronization lifting of lathe bed and transverse shifting.
The lathe bed elevating mechanism 305 is provided with the first feedback transducer, and it is anti-that lathe bed transverse moving mechanism is provided with second
Infeed sensor device, lathe bed longitudinal moving mechanism are provided with third feedback transducer, and first feedback transducer and the second feedback pass
Sensor is absolute type encoder, and the third feedback transducer is stay-supported type displacement sensor.
Preferably, first feedback transducer to lifting position carry out closed-loop control, the second feedback transducer for pair
Lateral displacement position carries out closed-loop control, and third feedback transducer is used to carry out closed-loop control to longitudinal movement position.Three sides
To linear motion absolute position straight line magnetic grid can be installed by guide rail, on driving motor absolute encoder or bracing wire
Formula displacement sensor forms the double detections in absolute position, not only guarantees position precision, but also can mutually detect remaining backup, moreover it is possible to shut down
Location information is not lost when restoring afterwards.
The both-end support therapeutic bed that the present invention sends out embodiment can be realized treatment by therapeutic bed and auxiliary support apparatus
The both-end support of bed, reduces the deformation of therapeutic bed, so that treatment positioning is more accurate, bed body movement is more stable rapidly, mobile
Orientation is more flexible, more adaptable.
Specifically, the lathe bed bracket 304 includes lathe bed base 306 and lifting support 307, the lathe bed base 306 is set
It is equipped with lifting sliding rail 308, the lifting support 307 is connect by lifting sliding rail 308 with 306 lifting carriage of lathe bed base, is gone up and down
Sliding rail is Composite Double stroke guide rail, and the lathe bed elevating mechanism 305 includes first motor 309, first gear 310 and the first tooth
Item 311, the first motor 309 are fixedly connected with lifting support 307, first rack gear 311 and the fixed company of lathe bed base 306
It connects, the first motor 309 is connect by first gear 310 with 311 gear teeth of the first rack gear, and the first motor 309, which drives, to be risen
307 lifting moving of descending branch frame.
Wherein, the lifting part includes pedestal, lifting support, support device, transmission device and feedback transducer.It rises
Drop sliding rail is binodal telescopic guideway, guarantees support stiffness, wherein guide rail is fixed on lathe bed base on one side, is fixed on liter on one side
On descending branch frame；Lathe bed elevating mechanism may include gear, rack gear, right angle planetary reduction gear and servo motor, and rack gear is fixed on liter
On descending branch frame, servo motor and right angle planetary reduction gear are fixedly connected on lathe bed base, and gear is fixed on reducer output shaft
It is meshed with rack gear.Feedback transducer uses absolute type encoder, does position-force control, guarantees positioning accuracy.
In the embodiment of the present invention, can guarantee that the rigidity of therapeutic bed is mobile by lathe bed elevating mechanism, movement speed faster,
Feedback transducer uses absolute type encoder, closed-loop control can be done to lathe bed lifting moving, to be further ensured that lathe bed
Positioning, using Composite Double stroke guide rail, not only good rigidity, long stroke, but also saving space, in extreme lower position, bed surface position is low, just
Patient Yu goes to bed.
Specifically, the mobile lathe bed 303 is arranged above the lifting support 307, mobile 303 bottom of lathe bed is logical
It crosses lathe bed transverse moving mechanism to connect with lifting support 307, the lathe bed transverse moving mechanism includes the second motor 312, second
Gear 313 and the second rack gear 314, second motor 312 are fixedly connected with mobile 303 bottom of lathe bed, second rack gear 314
It is fixedly connected with lifting support 307, second motor 312 is connect by second gear 313 with 314 gear teeth of the second rack gear, institute
It states the second motor 312 and drives mobile 303 transverse shifting of lathe bed.
Wherein, bracket, transversely-moving rack, support device, lathe bed transverse moving mechanism has can be set in the mobile lathe bed bottom
And feedback transducer.Support device is that both ends are each provided with an intersection rod linear guide, guarantees support stiffness, wherein guide rail
It is fixed on bracket, is fixed on transversely-moving rack on one side on one side；Lathe bed transverse moving mechanism may include rack-and-pinion, right angle planet
Retarder and servo motor, rack gear are fixed on transversely-moving rack, and servo motor and right angle planetary reduction gear are fixedly connected on bracket,
Pinion gear is fixed on reducer output shaft and is meshed with rack gear.Feedback transducer uses absolute type encoder, does position closed loop control
System guarantees positioning accuracy.
In the present embodiment, can guarantee that the rigidity of therapeutic bed is mobile by lathe bed transverse moving mechanism, movement speed faster,
Feedback transducer uses absolute type encoder, closed-loop control can be done to lathe bed transverse shifting, to be further ensured that lathe bed
Positioning.
Specifically, the mobile lathe bed 303 is provided with longitudinal movement rail 315 and bed board, the bed board and longitudinal movement
Guide rail 315 is slidably connected, and the bed board is connect by lathe bed longitudinal moving mechanism with mobile lathe bed 303, and the lathe bed longitudinally moves
Motivation structure includes third motor 316, third gear and synchronous belt, and the bed board bottom is provided with sliding block, the sliding block with it is synchronous
Band connection, for the third motor 316 by third gear and synchronous band connection, the third motor drives mobile lathe bed longitudinally to move
It is dynamic.
It wherein, may include bed board, support device, lathe bed longitudinal moving mechanism and feedback sense at the top of the mobile lathe bed
Device.Support device includes two ball linear guides and guiding followup cam, guarantees support stiffness, wherein guide rail and transversely-moving rack phase
Fixed, sliding block is mutually fixed with bed board；Lathe bed longitudinal moving mechanism may include synchronous belt mould group, clutch, right angle planetary reduction gear
Device and servo motor, synchronous belt mould group are mutually fixed with transversely-moving rack, and clutch output is connected with synchronous belt driving wheel, clutch
Input is connected with planetary reduction gear and servo motor.Feedback transducer uses stay-supported type displacement sensor, does position closed loop control
System guarantees positioning accuracy.
In the present embodiment, can guarantee that the rigidity of therapeutic bed is mobile by lathe bed longitudinal moving mechanism, movement speed faster,
Feedback transducer uses stay-supported type displacement sensor, can vertically move to lathe bed and do closed-loop control, to be further ensured that bed
The positioning of body.
Specifically, the auxiliary support apparatus 302 includes device column 317, support plate 318, the column support 319 at both ends
With lifting transverse moving mechanism 320, the 320 attachment device column 317 of lifting transverse moving mechanism and support plate 318 are used for
The lifting of support plate 318 and transverse shifting are controlled, the column support 319 is arranged below support plate 318, the column support
319 connect with the device column 317 at both ends.
The device column 317 at the both ends is respectively arranged with lead screw 321 and rotating electric machine 322, the rotating electric machine 322 with
The lead screw 321 connects and lead screw 321 is driven to rotate；The lifting transverse moving mechanism 320 includes lifting slider 323, connecting rod
324, the lifting slider 323 be separately positioned on the lead screw 321 of the device column 317 at both ends and with 321 lifting carriage of lead screw
Connection, 324 both ends of connecting rod are hinged with lifting slider 323 and support plate 318 respectively.
Described device column 317 is provided with column guide rail 325, and the lifting slider 323 passes through on the column guide rail 325
Lower slider, the connecting rod 324 are connecting rod in parallel.318 surface of support plate is provided with idler wheel 326, and the idler wheel 326 is for branch
The mobile lathe bed 303 supportted in support plate is mobile.Connecting rod in parallel is attached by articulation piece 327.
Wherein, the Auxiliary support may include support plate, two groups of assistance for lifting transverse moving mechanisms, connecting rod in parallel.Its
Several idler wheels are provided on middle auxiliary bed board, for slidably supporting mobile lathe bed.Device column includes stand, is fixed on ground；
Ball linear guide；Right angle planetary reduction gear and screw rod are connected by servo motor, to drive feed screw nut and lifting slider to do directly
Line movement.Connecting rod in parallel, one end is logical to be connected with lifting slider, and one end is connected with support plate, to support and support plate is driven to rise
Drop and transverse movement.
In the embodiment of the present invention, by setting device column, support plate, column support and transverse moving mechanism is gone up and down,
While guaranteeing that mobile lathe bed is supported, it can be realized same by lifting transverse moving mechanism and mobile lathe bed synchronizing moving
Shi Liandong support.
The embodiment of the present invention, 1. clever structures, good rigidity, deformation is small, so that the increase for longitudinal stroke provides one kind
Structure type；Simultaneously as good rigidity, can reduce the thickness of bed board, to guarantee good radiant transmittance.
2. therapeutic bed main body uses cascaded structure, it is easy to accomplish larger stroke.Auxiliary support uses parallel-connection structure, and structure is tight
It gathers, bearing capacity is strong；And symmetrical configuration, simple and beautiful, when auxiliary bed board declines, medical accelerator is treated invisible in space.
3. the present invention does closed-loop control using encoder, so that running smoothly, positioning accuracy is high, realizes accurate treatment pendulum
Position.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of clinac therapeutic device, which is characterized in that the clinac include accelerator rack,
Treatment head and both-end support therapeutic bed, the accelerator rack include fixed frame, rotary frame, gear rotary positioning apparatus and
Harness towing chain mechanism, the rotary frame are connected by the gear rotary positioning apparatus and fixed frame rotation, harness
It is connect by harness towing chain mechanism with rotary frame, the rotary frame is provided with treatment head mounting rack, and the harness passes through line
Beam towing chain mechanism is connect with the treatment head on treatment head mounting rack, and the both-end support therapeutic bed includes therapeutic bed and Auxiliary support
Device；
The treatment head includes diaphragm, treatment head rotating mechanism, light field component, ionisation chamber, quasi- block and just standard is bored, the treatment
Head rotating mechanism connect with diaphragm and the diaphragm is driven to rotate, and the light field component is arranged above the diaphragm, the electricity
It is arranged above the light field component from room, the quasi- block is arranged above the ionisation chamber, and the just quasi- cone is arranged equal
Above quasi- block；
The treatment head rotating mechanism includes rotary teeth wheel disc, treatment head rotating electric machine and transmission gear, the treatment head rotation
Motor is connect with transmission gear, and the transmission gear is engaged with rotary teeth wheel disc, and the treatment head rotating electric machine passes through driving cog
Wheel drives rotary teeth wheel disc rotation.
2. clinac therapeutic device according to claim 1, which is characterized in that the treatment head rotating electric machine
It is connected by right-angle reduction device, worm screw with the transmission gear on turntable bearing, worm screw connect with transmission gear, the driving cog
Wheel is turbine, and the treatment head rotating mechanism is provided with absolute type encoder and carries out closed-loop control to rotary teeth wheel disc position.
3. clinac therapeutic device according to claim 1, which is characterized in that the diaphragm includes upper diaphragm
With lower diaphragm, the upper diaphragm is arranged above the lower diaphragm；The transversely opened and closed setting of upper diaphragm, the lower diaphragm are longitudinal
Folding setting；
The upper diaphragm includes the first tungsten block, the second tungsten block, the first arc-shaped slide rail, and the first tungsten block and the second tungsten block are along first
Arc-shaped slide rail is transversely opened and closed, and the lower diaphragm includes third tungsten block, the 4th tungsten block, the second arc-shaped slide rail, the third tungsten block and
4th tungsten block is longitudinally opened and closed along the second arc-shaped slide rail, the upper diaphragm and lower diaphragm be respectively arranged with motor absolute type encoder and
Absolute position magnetic grid, by the two-position detection of the absolute position magnetic grid installed on the absolute type encoder and arc guide rail come
Carry out closed-loop control and mutually monitoring；
The first tungsten block, the second tungsten block, the first arc-shaped slide rail, third tungsten block, the 4th tungsten block and the second arc-shaped slide rail are set with one heart
It sets, tungsten block cross sectional shape is sector.
4. clinac therapeutic device according to claim 1, which is characterized in that the quasi- block is arranged more
On station circular dividing table, quasi- block is adjusted with multistation circular dividing table, the multistation circular dividing table is three station circular dividing table tune, including is penetrated
Line expansion station, it is general put station and maintenance station, the multistation circular dividing table connect with rotary teeth wheel disc, and the multistation indexes
Platform includes servo motor by worm and gear, and the ionisation chamber is provided with ionisation chamber slideway, and the ionisation chamber is sliding by ionisation chamber
Road is slidably connected.
5. clinac therapeutic device according to claim 1, which is characterized in that the gear rotational positioning dress
Setting includes: driving motor, driving gear, rotating disk gear and plate-like gear-bearing, and the plate-like gear-bearing is annular disk
Shape gear-bearing, the plate-like gear-bearing are connect with fixed frame, and the rotating disk gear set is in plate-like gear-bearing
Be rotatablely connected with plate-like gear-bearing, the driving motor is fixedly connected with the fixed frame, the output end of driving motor and
The driving gear connection, the driving gear engage with rotating disk gear and rotating disk gear are driven to rotate, the rotation
Turntable shape gear outer surface is provided with mounting hole, and the rotary frame is connect by mounting hole with rotating disk gear, the drive
Dynamic motor is provided with right-angle reduction device and torque guard, and the driving gear is provided with tensioner.
6. clinac therapeutic device according to claim 5, which is characterized in that the gear rotational positioning dress
It installs and is equipped with rotary position-limit mechanism, the rotary position-limit mechanism is fixedly connected with fixed frame, the clinac machine
Frame gear rotary positioning apparatus is provided with gear position adjustment mechanism and safe fixed mechanism, the gear position adjustment mechanism with
Fixed frame is fixedly connected, and the safe fixed mechanism is fixedly connected with fixed frame.
7. clinac therapeutic device according to claim 5, which is characterized in that the harness towing chain mechanism packet
Include: drag chain trapped orbit, drag chain swing-around trajectory and drag chain, the drag chain trapped orbit are connect with fixed frame, the drag chain rotation
Transition road is connect with rotary frame, and the drag chain is sleeved in drag chain trapped orbit and drag chain swing-around trajectory；
When rotary frame rotates in the forward direction, the drag chain in drag chain trapped orbit is raised, and the drag chain being raised is packed up to be sleeved on and be dragged
In chain swing-around trajectory；When rotary frame reversely rotates, the drag chain in drag chain swing-around trajectory falls, and the drag chain of whereabouts is stowed away set
In drag chain trapped orbit.
8. clinac therapeutic device according to claim 1, which is characterized in that the therapeutic bed includes movement
Lathe bed and lathe bed bracket, the mobile lathe bed are arranged above the lathe bed bracket, and the lathe bed bracket is provided with lathe bed lifting
Mechanism, the mobile lathe bed are provided with lathe bed transverse moving mechanism and lathe bed longitudinal moving mechanism, and the lathe bed bracket passes through bed
Body elevating mechanism controls the mobile lathe bed lifting above lathe bed bracket, and the mobile lathe bed passes through lathe bed transverse moving mechanism and bed
Body longitudinal moving mechanism controls mobile lathe bed transverse shifting and longitudinal movement, the lathe bed elevating mechanism, lathe bed transverse shifting machine
Structure and lathe bed longitudinal moving mechanism are respectively arranged with feedback transducer；
One end of the therapeutic bed is arranged in the auxiliary support apparatus, be used to support therapeutic bed stretching mobile lathe bed, and with
Mobile lathe bed synchronization lifting and transverse shifting；
The lathe bed elevating mechanism is provided with the first feedback transducer, and lathe bed transverse moving mechanism is provided with the second feedback sense
Device, lathe bed longitudinal moving mechanism are provided with third feedback transducer, and first feedback transducer and the second feedback transducer are
Absolute type encoder, the third feedback transducer are stay-supported type displacement sensor.
9. clinac therapeutic device according to claim 8, which is characterized in that first feedback transducer
Closed-loop control is carried out to lifting position, the second feedback transducer is used to carry out lateral displacement position closed-loop control, third feedback
Sensor is used to carry out closed-loop control to longitudinal movement position；
The lathe bed bracket includes lathe bed base and lifting support, and the lathe bed base is provided with lifting sliding rail, the lifting branch
Frame is connect by lifting sliding rail with lathe bed base lifting carriage, and the lifting sliding rail is the lifting of lathe bed described in Composite Double stroke guide rail
Mechanism includes first motor, first gear and the first rack gear, and the first motor is fixedly connected with lifting support, first tooth
Item is fixedly connected with lathe bed base, and the first motor is connect by first gear with the first rack gear gear teeth, the first motor
Drive lifting support lifting moving.
The mobile lathe bed is arranged above the lifting support, the mobile lathe bed bottom by lathe bed transverse moving mechanism with
Lifting support connection, the lathe bed transverse moving mechanism include the second motor, second gear and the second rack gear, second motor
It is fixedly connected with mobile lathe bed bottom, second rack gear is fixedly connected with lifting support, and second motor passes through the second tooth
Wheel is connect with the second rack gear gear teeth, and second motor drives mobile lathe bed transverse shifting.
The mobile lathe bed is provided with longitudinal movement rail and bed board, and the bed board and longitudinal movement rail are slidably connected, described
Bed board is connect by lathe bed longitudinal moving mechanism with mobile lathe bed, and the lathe bed longitudinal moving mechanism includes third motor, third
Gear and synchronous belt, the bed board bottom are provided with sliding block, and the sliding block passes through third with synchronous band connection, the third motor
Gear drives mobile lathe bed longitudinal movement with synchronous band connection, the third motor.
10. clinac therapeutic device according to claim 8, which is characterized in that the auxiliary support apparatus
Device column, support plate, column support and lifting transverse moving mechanism including both ends, the lifting transverse moving mechanism connection
Device column and support plate, for controlling support plate lifting and transverse shifting, the column support is arranged under support plate, described
Column support and the device column at both ends connect；
The device column at the both ends is respectively arranged with lead screw and rotating electric machine, and the rotating electric machine is connect with the lead screw and band
Dynamic lead screw rotation；
The lifting transverse moving mechanism includes lifting slider, connecting rod, and the device that the lifting slider is separately positioned on both ends is vertical
It is connect on the lead screw of column and with lead screw lifting carriage, the connecting rod two end is hinged with lifting slider and support plate respectively；The dress
It sets column and is provided with column guide rail, the lifting slider is slided up and down by the column guide rail, and the connecting rod is connecting rod in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910443340.4A CN110237440B (en) | 2019-05-28 | 2019-05-28 | Medical linear accelerator treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910443340.4A CN110237440B (en) | 2019-05-28 | 2019-05-28 | Medical linear accelerator treatment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110237440A true CN110237440A (en) | 2019-09-17 |
| CN110237440B CN110237440B (en) | 2024-06-25 |
Family
ID=67884995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910443340.4A Active CN110237440B (en) | 2019-05-28 | 2019-05-28 | Medical linear accelerator treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110237440B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960807A (en) * | 2019-12-05 | 2020-04-07 | 上海联影医疗科技有限公司 | Medical linear accelerator system |
| CN112612227A (en) * | 2020-12-09 | 2021-04-06 | 合肥中科离子医学技术装备有限公司 | Control method of particle rotating treatment room rotating rack |
| CN112657071A (en) * | 2020-12-31 | 2021-04-16 | 陈涛 | Automatic adjusting and supporting device for tumor radiotherapy equipment and radiotherapy equipment |
| CN114053596A (en) * | 2020-08-04 | 2022-02-18 | 中国原子能科学研究院 | Rotary rack with replaceable treatment head |
| CN114053597A (en) * | 2020-08-04 | 2022-02-18 | 中国原子能科学研究院 | Method for replacing treatment head by rotating frame |
| CN114132240A (en) * | 2021-12-28 | 2022-03-04 | 无锡全盛安仁机械有限公司 | Vehicle-mounted refrigerator moving platform |
| CN117531129A (en) * | 2023-10-23 | 2024-02-09 | 智维精准(北京)医疗科技有限公司 | Linear accelerator frame |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106134311B (en) * | 2010-11-18 | 2013-10-30 | 江苏海明医疗器械有限公司 | Two-photon treatment head |
| CN106964080A (en) * | 2017-04-11 | 2017-07-21 | 沈阳东软医疗系统有限公司 | Therapeutic bed and clinac |
| US20170239496A1 (en) * | 2014-10-20 | 2017-08-24 | Soochow University | Radiation therapy system |
| CN107789747A (en) * | 2017-10-25 | 2018-03-13 | 沈阳东软医疗系统有限公司 | A kind of EPID control devices of medical computerized linear accelerator |
-
2019
- 2019-05-28 CN CN201910443340.4A patent/CN110237440B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106134311B (en) * | 2010-11-18 | 2013-10-30 | 江苏海明医疗器械有限公司 | Two-photon treatment head |
| US20170239496A1 (en) * | 2014-10-20 | 2017-08-24 | Soochow University | Radiation therapy system |
| CN106964080A (en) * | 2017-04-11 | 2017-07-21 | 沈阳东软医疗系统有限公司 | Therapeutic bed and clinac |
| CN107789747A (en) * | 2017-10-25 | 2018-03-13 | 沈阳东软医疗系统有限公司 | A kind of EPID control devices of medical computerized linear accelerator |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110960807A (en) * | 2019-12-05 | 2020-04-07 | 上海联影医疗科技有限公司 | Medical linear accelerator system |
| CN110960807B (en) * | 2019-12-05 | 2022-03-04 | 上海联影医疗科技股份有限公司 | Medical linear accelerator system |
| CN114053596A (en) * | 2020-08-04 | 2022-02-18 | 中国原子能科学研究院 | Rotary rack with replaceable treatment head |
| CN114053597A (en) * | 2020-08-04 | 2022-02-18 | 中国原子能科学研究院 | Method for replacing treatment head by rotating frame |
| CN114053597B (en) * | 2020-08-04 | 2022-08-09 | 中国原子能科学研究院 | Method for replacing treatment head by rotating frame |
| CN114053596B (en) * | 2020-08-04 | 2022-08-09 | 中国原子能科学研究院 | Rotary rack with replaceable treatment head |
| CN112612227A (en) * | 2020-12-09 | 2021-04-06 | 合肥中科离子医学技术装备有限公司 | Control method of particle rotating treatment room rotating rack |
| CN112657071A (en) * | 2020-12-31 | 2021-04-16 | 陈涛 | Automatic adjusting and supporting device for tumor radiotherapy equipment and radiotherapy equipment |
| CN114132240A (en) * | 2021-12-28 | 2022-03-04 | 无锡全盛安仁机械有限公司 | Vehicle-mounted refrigerator moving platform |
| CN117531129A (en) * | 2023-10-23 | 2024-02-09 | 智维精准(北京)医疗科技有限公司 | Linear accelerator frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110237440B (en) | 2024-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110237440A (en) | A kind of clinac therapeutic device | |
| CN111265229A (en) | Omnidirectional movement type multi-degree-of-freedom double-source X-ray equipment and application thereof | |
| CN103301581B (en) | Large medical equipment therapeutic bed | |
| WO2014166040A1 (en) | Radiation therapy machine | |
| CN203425388U (en) | Hadron treatment room | |
| CN109524146A (en) | X ray irradiation x device | |
| CN211383511U (en) | Medical linear accelerator treatment device | |
| CN209543939U (en) | X ray irradiation x device | |
| CN209917099U (en) | Medical linear accelerator treatment head | |
| CN214318868U (en) | Medical proton and heavy ion radiotherapy rotating frame | |
| CN109876306A (en) | A kind of both-end support therapeutic bed | |
| CN216562487U (en) | Electron accelerator rotation irradiation device | |
| CN111359106B (en) | Radiotherapy positioning bed | |
| CN2610860Y (en) | C-type arm X-ray positioner | |
| CN107915184A (en) | A kind of bio-pharmaceuticals sealing machine | |
| CN109966658A (en) | A kind of clinac treatment head | |
| CN210057173U (en) | Medical electron linear accelerator frame | |
| CN207813150U (en) | A kind of vehicle reversing arrangement in stereo garage | |
| CN203874295U (en) | Cobalt-60 gamma ray head radiotherapy machine | |
| CN201291333Y (en) | Spiral bevel gear digital control lapping device | |
| CN109771848A (en) | A kind for the treatment of system for realizing noncoplanar irradiation | |
| CN209828005U (en) | Treatment system for realizing non-coplanar irradiation | |
| CN106693217A (en) | Radiotherapy system variable rectangular radiation field collimator | |
| CN2315904Y (en) | Positioning structure for X-ray analog position finder | |
| CN221206545U (en) | I-shaped non-coplanar ray irradiation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |