CN206688029U - Semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount - Google Patents

Abstract

A kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount of the utility model, by fixed bottom plate, the eccentric sliding ball fixed mount of head bone, negative pressure is rested the head on, head film and the part of porus acusticus externus fixator five composition, by to upper limb body, crotch, occipital bone, neck rear portion, maxilla, the nasion, the braking of the rigid bone mark such as facial bone and porus acusticus externus is spacing to reach final positioning, the utility model coordinates special gland film, upper limks movements can be limited, keep shoulder joint braking, reach and be accurately positioned, particularly suitable for neck, the radiotherapy localization at the positions such as spinal cord, the spacing fixation to human body head can be fully achieved, it can reach or close to zero shift；Effectively solve all drawbacks and deficiency existing for current head radiotherapy location structure.The utility model is designed reasonably, easy to operate, safe, environmental protection, fixed effect is obvious, and practicality and versatility are all stronger.

Description

Semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount

Technical field

The utility model belongs to human body positioner technical field in radiotherapy, is related to a kind of semicircle ear mouth and nose centering type Radiotherapy incidence positioning negative pressure pillow flat board fixed mount, is the pinpoint device of incidence in a kind of radiotherapy, is adapted to It is fixed in the entirety of the big incidence of physical activity degree, it is the important component for being accurately positioned, implementing in modern radiotherapy.

Background technology

Silica gel is a kind of high activity sorbing material, belongs to amorphous substance, its chemical molecular formula is mSiO2nH2O；Except strong Do not reacted outside alkali, hydrofluoric acid with any material, not soluble in water and any solvent is nonpoisonous and tasteless.It is high, hot with absorption property Stability is good, chemical property is stable, has higher mechanical strength etc..Engineering staff can be produced by adding some special factors Raw a variety of silica gel types, oral cavity (dentistry) impression technique is frequently with polyethers silica gel and silicon rubber.

Working stock is powdered, and property is stable；In use, agent rifle is mixed or hand mixes mode and reconciled by reinforcing, into The pastel of flowing；Being contacted with object has good hydrophily, the thixotropy flowed on demand, and each is delicate for instantaneous solidification Details, needed particularly suitable for dental prosthetic impression.Meet that the clinical stamp to different dummies requires well hydrophilic Property and intensity, stamp are accurate, are unlikely to deform, are not only applicable to the impression making of baking-ceramic tooth or detachable dental prostheses, and can reach completely To modern precision dummy, such as the high-precision requirement of Lava all-ceramic crowns, plantation dental impression.

Document report radioactivity oral mucosa and the sense of taste damage incidence and the order of severity respectively with oral mucosa and tongue Exposure dosage and volume have substantial connection.At present, to reduce the radioactive dose of tongue and oral mucosa, cork is commonly used in the country Tongue and part oral mucosa are pushed away target area of irradiation by plug or mouth containing device, but this method be primarily present pressure tongue effect do not affirm, position The shortcomings that poor repeatability.For this, we are also contemplated for devising the integral support of special pressure tongue when developing head radiation fixed mount.

Negative pressure of vacuum pad is the equipment for cancer patient undergoing radiotherapy resetting and pendulum position.It is by a vacuum valve and The plastic particles ball composition being fitted into plastics or rubber bag.Radiotherapy patient is lieed down in being positioned and treated on negative-pressure vacuum pad After required position, a certain degree of negative pressure of vacuum is pumped to vacuum fixing cushion with vavuum pump, makes plastic particles ball each other Extruding, is molded by patient size.Now vacuum fixing cushion is just fixed to simulate the cavity plate of human body, makes repeatedly for radiotherapy With.Negative-pressure vacuum pads immobilized patients position, and pendulum position quality is seldom influenceed by the subjective factor of operating technology personnel, and launched field center is moved It is dynamic smaller.It is widely used in the radiotherapy in body portion.

Low temperature thermo-plastic planking (film) is a kind of macromolecule polyester of special synthesis, is handled through a series of physical and chemical method The new medical material formed, for making materials such as fixation, KAFO, braces outside radiotherapy Postural immobilization, orthopaedics.Due to The material after not absorbing ray, heating and softening with good plastotype effect and specific shape memory function (working as modeling Type can reheating, again plastotype or local heating shape again when dissatisfied) etc. outstanding properties, it is and simple to operate, fixed It is convenient, it is optimal external fixation system in current radiotherapy localization.

Currently, in our radiotherapy the fixation of patient mostly using low temperature thermo-plastic planking combine be mechanically fixed by the way of Reach the purpose of positioning.The requirement of the positioning of radiotherapy：Require fixed accurate on the three-dimensional of top to bottom, left and right, front and rear, it is mobile Error<5MM.Neck position anatomical structure is compact, and various vitals are distributed with.It is fixed by activities such as mandibular, cervical vertebras The limitation of organ, and the influence of the physiological activity such as breathing, heartbeat.Control mistake is fixed in the radiotherapy that factors above causes incidence It is poor difficult.Detected although mechanical means are various on the market, in practical effect and find displacement error be present mostly.

The deficiency of current radiotherapy localization：Position 1. (part) is fixed, spacing incomplete；2. spinal cord pendulum position repeatability is not good enough； 3. can not solve Target localization error caused by being rocked due to upper limbs；4. original lock assembly is complicated；5. can not solve The movement of body causes head error；6. can not solve decay of a base plate for ray；7. low temperature thermoplastic film and bottom plate are deposited In fixed interval (FI)；8. can not solve the head error brought due to cervical rotation；9. can not solve what is brought due to neck-stretching Head error；10. (can not solve the problems, such as) to confirm and record head and put a position first；11. can not effectively fixing head, neck Portion, shoulder etc.；12. lack the fixing device of head bone mark；13. press tongue effect and poor repeatability；14. it is engaged fixed cup list Direction activity is fixed difficult；15. irradiation field vertical angle stop occurs when irradiating takes the photograph open country；16. headrest fixes spacing letter with head frame It is plain；17. can not solve the head error rested the head on sub- moving belt due to head and come；18. plastic cement headrest is affected by temperature deformation sensitive； 19. the headrest for lacking individuality (owner is with unified headrest)；20. headrest easily slides on head frame bottom plate, (pillow is put Put and lack locking structure)；21. fix locking mechanical structure to be stressed directly；Come off 22. locking easily occurs for fixation procedure, it is fixed to lose Lose；23. fixation procedure causes (shoulder) skin to squeeze folder injury accident；24. face compressing, comfortableness is not good enough；25. standing finish Split designs, easy to be lost；It is 26. laborious, cumbersome using operating；27. resetting accuracy is poor.Deficiency and disadvantage based on more than Us are held to devise a radiotherapy localization fixing device, it mainly solves the problems, such as 1-20 points in deficiency above.

The content of the invention

The purpose of this utility model is that solve conventional head radiotherapy localization drawback, there is provided a kind of device of accurate radiotherapy positioning Tool --- semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount.The utility model is mainly using sky Between clog the principle combined closely, cam-type extrusion principle, taenidium and enter principle, joinery and its construction design principle, Tenon and bias The principle of the dual locking of circle, particulate are extruded to shape principle, lever stress principle, Principles of Gear Connection, the moulding Position Design of silica gel The spacing technique for fixing of the spacing technique for fixing of principle, handle grip, the spacing technique for fixing of crotch and conformal outline.Coordinate special Gland film, can limit upper limks movements, keep shoulder joint braking, reach and be accurately positioned.Particularly suitable for neck, spinal cord etc. The radiotherapy localization at position.

A kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount of the utility model, by solid Determine bottom plate, head bone eccentric sliding ball fixed mount, negative pressure pillow, head film and the part of porus acusticus externus fixator five composition, five need to coordinate Use.

First, fixed bottom plate is by column type locking structure 109, headrest groove 298, position-limit foot hole 297, shoulder bottom plate 290, bottom plate Positioning hole 299, bottom plate combined positioning hole 301, body groove 304, body bottom plate 305, crotch limiter 309, bottom plate slope 300, upper limbs Limiter 296, expansion hole 152 and head bottom plate 147 collectively constitute.Agent structure be one piece of isosceles trapezoidal structure head bottom plate 147, Rectangle structure shoulder bottom plate 290 and the three of body bottom plate 305 are formed.Rectangular headrest groove 298 is located at the surface of head bottom plate 147 Middle position simultaneously keeps lower edge consistent with it.The long edge in both sides of headrest groove 298 is respectively connected with 3 tool column type locking structures 109, 3 tool column type locking structure, 109 or so the parallel fixation cell walls 19 and cylinder briquetting for being connected as one, forming strip of homonymy 58；Homonymy 3 has on the surface of head bottom plate 147 in the outside of column type locking structure 109 and respectively has a circular depressed structure --- and it is swollen Swollen hole 152.The headrest side short side of groove 298 is connected with 2 tool column type locking structures 109 and is connected.Opposite side short side dissociates. I.e.：The fixation cell wall 19 of both sides long side and the fixation cell wall 19 of side short side form the headrest groove 298 of " C " shape；Wherein head bottom plate The expansion hole 152 that the 147 non-middle position in upper edges surface (close to certain one end) circular depressed is formed.Rest the head on the recessed of groove 298 surface Three position-limit foot holes 297 for forming conical structure are fallen into, positioned at the center of headrest groove 298, triangle disposition arrangement is presented.Quadrangle The connection of shoulder bottom plate 290 and the edge of head bottom plate 147, be each provided with 2 tool column type locking structures on its two short edge placement 109, homonymy is connected two-by-two, i.e., both fixation cell walls 19 are connected as a single entity.The outer of 2 tool column type locking structure 109 of homonymy Center is each provided with an expansion hole 152.The surface of shoulder bottom plate 290 is respectively equipped with bottom plate combined positioning hole close to fixed cell wall 19 299 and bottom plate positioning hole 301.The one end of body bottom plate 305 is connected with shoulder bottom plate 290 and keeps edge consistent, and the other end connects and bottom plate Slope 300.The wherein middle position concave shape adult groove 304 of body bottom plate 305.The centre position at 304 liang of edges of body groove is set respectively There is a upper limbs limiter 296.Crotch limiter 309 is arranged at the lower end of body groove 304, and with the lower short side edge of body bottom plate 305 Flush.

1. " column type locking structure 109 " is by fixed cell wall 19, fixed tenon 20, fixed bottom plate 25, tenon line 27, compression line 57th, cylinder briquetting 58, connecting pole 59, cylinder axis 60, cylindrical base 61, cylinder spanner 62 and cylinder, which are left blank, 63 collectively constitutes.Gu Sphenoid that cell wall 19 is a upper-thin-lower-thick is determined perpendicular to an edge of fixed bottom plate 25；In the middle part of the other edge of fixed bottom plate 25 Cylindrical base 61 is connected with, one end dissociative and centre, which are run through, cylinder axis 60；The both ends of axle are respectively connected with mobilizable cylinder Briquetting 58；Between two cylinder briquettings 58 by connecting pole 59 with the cylinder spanner 62 of outer rim is static is connected, cylinder is left in centre Leave blank 63, corresponding is the fixation tenon 20 on fixed cell wall 19, there is multi-turn tenon line 27 thereon；The outer of cylinder briquetting 58 It is designed with the fixed phase of cell wall 19 close to place and compresses line 57.

2. " upper limbs limiter 296 " enters component 38, thumb wheel component 39, pointer 64, quarter by arbor 36, handle 37, taenidium Degree 65, master calibration block 88 and secondary calibration block 95 collectively form.Agent structure is that taenidium enters component 38, two block length cube shapes Master calibration block 88 is parallel with secondary calibration block 95 to be embedded in both sides, and wherein master calibration block 88 enters the boundary position of component 38 with taenidium It is designed with scale 65.The a certain part that arbor 36 enters in component 38 with taenidium is connected, outer to be located at by handle 37, pointer 64 Root part of handle is vertical with scale 65；Thumb wheel component is connected to one end that taenidium enters component 38.Wherein " thumb wheel component 39 " by Tooth case lid 66, thumb wheel mouth 67, secondary braces plate 68, thumb wheel 69, side plate 70, main braces 71, power teeth 72, form friction pattern 73, line shaft 74th, transaxle 75, conversion gear 76, helical axis 77, helical tooth 78, active bearings 79 and pivot pin 80 are formed.The structure is positioned at limit One end of position device substrate, main body are the chamber structure that secondary braces plate 68, main braces 71, tooth case lid 66 and two blocks of side plates 70 are formed. The main central design of braces 71 has active bearings 79, and interior traveling has helical axis 77；Helical tooth 78 is by the pivot pin 80 on helical axis 77 Fix and rotated together with helical axis 77.The line shaft 74 and transaxle 75 sent on main braces 71, with the secondary phase of braces plate 68 Even, thumb wheel 69, power teeth 72 and dress gear changing 76, wherein thumb wheel 69 and power teeth 72 are wound with thereon relies on line shaft 74 Upper pivot pin 80 is fixed and rotated.The wheel of thumb wheel 69 is along being designed with form friction pattern 73, and from the thumb wheel on tooth case lid 66 67 partial denudations of mouth are in outer surface.Wherein " taenidium enters component 38 " by arbor 36, main braces 71, helical axis 77, active bearings 79th, reel assembly 81, lower roll-top 82, upper lid ditch 83, last volume ring 84, upper volume ring 86, upper roll-top 87, master calibration block 88, seat guide rail 89th, bottom cut board 90, handle seat 91, seat be convex 92, seat nut 93, taenidium 94, secondary calibration block 95, silk enter groove 96, the and of driven bearing 99 Follower plate 100 is formed.Its agent structure is that the silk that secondary calibration block 95, master calibration block 88 and bottom cut board 90 are formed enters groove 96, two from Dynamic plate 100 and main braces 71 enter the both ends of groove 96 positioned at silk respectively；Two seat guide rails 89 are located at silk and entered among the two side of groove 96. Helical axis 77 is entered by the driven bearing 99 in the active bearings 79 and follower plate 100 on main braces 71 through whole silk Groove 96, helical axis 77 are covered with taenidium 94 with it.Handle seat 91 is provided with seat by seat nut 93 through helical axis 77, its both sides Convex 92, traveling is in seat guide rail 89；Arbor 36 is located at the center upper portion position of handle seat 91.Upper roll-top 87 and lower roll-top 82 difference traveling in Positioned at upper the lid ditch 83 and lower cover ditch 97 of the upper limb of both sides side wall, and respectively by upper volume ring 86 and the 84 overlapping collar of last volume ring in On arbor 36, while constitute the top cover that silk enters groove 96.Upper roll-top 87 and lower roll-top 82 are started from main braces 71 and follower plate 100 Reel assembly 81.Wherein " reel assembly 81 " is by lower roll-top 82 (or upper roll-top 87), scroll rack 85, backrush pin 98, backrush bullet Spring 399 and backrush axle 400 form.One formula of structure two, respectively on main braces 71 and follower plate 100.Agent structure is Two relative scroll rack 85 set up, backrush axle 400 are lain across in the middle part of both；Backrush spring 399 is surrounded on back by backrush pin 98 The both ends of spool 400；Lower roll-top 82 (or upper roll-top 87) is wound in backrush axle 400 by lower cover ditch 97 (or upper lid ditch 83) On.

3. " " structure of upper limbs limiter 296 " is identical with foregoing for the structure of crotch limiter 309 ".

2nd, the eccentric sliding ball fixed mount 310 of head bone is mainly pressed on fixed support by dental articulation and the nasion sends The strong point realize be relatively fixed.Gear engagement and silica gel two kinds of design principles of moulding positioning are employed, particularly suitable for profile The human body Head And Face that curve fluctuating differs greatly.This structure by head bottom plate 147, maxilla (triangle card) support component 229, sting device Sliding ball component 230, the right branch 256 of three pin fornixs, the left branch 257 of three pin fornixs, the preceding hole 259 of jaw base tooth, nasion fixator 260, nose base Branch 262 and cam-type lock pillar 263 form before the preceding hole 261 of tooth, three pin fornixs.Overall structure is in the supporting body structure stood like the legs of a tripod. Three cam-type lock pillars 263 are three fulcrums, in " product " font structure.Two cam-type lock pillars of " product " word structural base position It is connected between 263 with three cambered pin dome shapes；262 one end connection cam-type lock pillar 263 is propped up before three pin fornixs, it is another End is connected on three pin dome shapes between two cam-type lock pillars 263 at bottom position and he is divided into the three left branch of pin fornix 257 and three right branch 256 of pin dome shape, wherein the left branch 257 of three pin fornixs is short compared with the right branch 256 of three pin dome shapes, i.e. three pin vaults Branch 262 does not overlap with human body head median sagittal plane before gallery, in eccentric shape.The middle part of branch 262 is horizontal on having before three pin fornixs Jawbone (triangle card) support component 229 and the preceding hole 259 of jaw base tooth, both are separated by a certain distance, and sting device and slide the activity of ball component 230 It is connected to maxilla (triangle card) support component 229；Nasion fixator 260 and the preceding hole 261 of nose base tooth are horizontal through three pin vaults Gallery Qian Zhi262 middle and upper parts, both are also separated by a certain distance.Wherein each sub-unit is as follows：

1. wherein maxillas (triangle card) support component 229 is the direct part that fixed maxilla stings device, it passes through support Body 225 is (i.e.：Propped up before three pin fornixs the jaw tooth axle sleeve 227 on 262) rotate it is coupled.Maxilla support component 229 is horizontal by jaw The tight silk 198 of axle, the tight silk hole 199 of jaw transverse axis, jaw transverse axis seat 203, jaw teeth nut 204, jaw tooth axle 205, jaw tooth scale 206, jaw turn Tooth 207, supporter 225, jaw base tooth 226, jaw tooth axle sleeve 227 and triangle neck 231 form.The structure has connection (fixed mount Supporter) and regulation (angle and transverse axis displacement) function.Jaw tooth axle sleeve 227 passes through supporter 225 in hollow tubular structure, Jaw base tooth 226 is located at one end of jaw tooth axle sleeve 227 and is fixedly connected with supporter 225.Jaw turns tooth 207 and jaw base tooth 226 is mutual Engage and send jaw tooth axle 205, the traveling of jaw tooth axle 205 can freely turn in jaw tooth axle sleeve 227 relative to jaw tooth axle sleeve 227 It is dynamic.Jaw tooth axle 205 is got on the bus and has screw thread, is fitted with the phase of jaw teeth nut 204.Jaw tooth scale 206 is covered with turns tooth 207 and jaw base tooth in jaw 226 side, it is convenient to read (jaw transverse axis seat 203) related rotation angular values.The one end of jaw transverse axis seat 203 turns tooth 207 with jaw and consolidated It is fixed, another end dissociative and the triangle neck 231 for being provided with square breach formation.Traveling is stung to the accessory of device cunning ball component 230 in it. The tight silk hole 199 of jaw transverse axis is located at the free end surfaces of jaw transverse axis seat 203, and runs through in triangle neck 231, the tight silk hole of jaw transverse axis Car has screw thread in 199, and the phase of silk 198 tight with jaw transverse axis is fitted.

2., which wherein stings device, slides the direct part that ball component 230 is fixed maxilla, it passes through triangular prism 233 and maxilla Triangle neck 231 in (triangle card) support component 229 is connected, and by Sheng glue basket 209, excessive glue hole 210, stings device bar 211, stings edge 213rd, biting teeth position 214, solid tongue position 215, spatula 216, glue basket bottom plate 219, contain glue basket back plate 220, sting device 228, three angle index 232nd, triangular prism 233, post be convex 234, pressure tongue block 235, upper tooth sting edge 236, sliding ball 237, ball chute mouth 238, sting bar mouth 239, ball Groove 240, upper tooth sting position 241 and halfround bar slice 242 is formed, and the structure is free component, are connect maxilla and supporter direct Medium.Triangular prism 233 is that isosceles right angle is in triangle column structure, has two right-angled side faces chord flank side surfaces.Triangular prism 233 One end is vertically connected by string flank side surface with containing the side of glue basket 209, another end dissociative.Three angle index 232 are located at triangular prism 233 string flank side surface edges；The traveling of triangular prism 233 in triangle neck 231, two right-angled side faces respectively with triangle neck 231 Side is fitted, and the tight silk 198 of jaw transverse axis will be forced in the string flank side surface of triangular prism 233.It is cube structure to contain glue basket 209, Top surface covers without plate, there is four sides, wherein three sides are respectively provided with 4 excessive glue holes 210, the 4th side is Sheng glue basket back plate 220.Glue basket bottom plate 219 constitutes the bottom plate for containing glue basket 209.Glue basket bottom plate 219 divides inside and outside two sides.Opened round among inner face Ball chute mouth 238, depression forms semicircular ball groove 240 to ball chute mouth 238 downwards.The bottom opened round mouth of ball groove 240 runs through glue Basket bottom plate 219, the opening of the bottom of ball groove 240, which is formed, stings the outside that bar mouth (239) is located at glue basket bottom plate 219.The cunning of spherical structure Ball 237 is located in ball chute mouth 238, and surface both is tangent.Sting device bar 211 to run through and be fixed on sliding ball 237, sting device bar 211 For upper part positioned at containing in glue basket 209, device 228 is stung from stinging bar mouth 239 and pass connection in bottom.It is Buccodental to sting the grade of device 228 part The part of occlusion, play fixed maxilla, mandibular and force down tongue body.Overall structure by semicircular in shape halfround bar slice 242 Formed with the pressure tongue block 235 of Elliptic Cylinder.Wherein the side of the circular arc side of halfround bar slice 242 forms and stings edge 213, the boundless trip in diameter side From.Post convex 234 is not concentric isometrical with halfround bar slice 242, and the horizontal plane of post convex 234 is higher than the plane of halfround bar slice 242, with stinging edge 213 Flush.Sting the biting teeth position 214 that both the medial surface of edge 213 and convex 234 side of post surround semi-circular shape structure.Pressure tongue block 235 is located at The middle part at the back side of halfround bar slice 242, lower edges are respectively the partial arc of halfround bar slice 242 and the semi arch of post convex 234, left Dissociate right two sides.Wherein press the upper limb of tongue block 235 to there is side to form upper tooth and sting edge 236, the horizontal plane of post convex 234 is higher than pressure tongue The plane of block 235 is simultaneously stung edge 236 with upper tooth and flushed.The medial surface that the side of post convex 234 and lower tooth sting edge 236 surrounds between the two The upper tooth of semi-circular shape structure stings position 241.

3. nasions fixator 260 is the direct part for oppressing nasion tissue.By the supporter 225 sent on fixed mount (i.e.：Bone mark (nasion) realization that 262) compressing face is propped up before three pin fornixs is relatively fixed.The structure employs gear engagement Two kinds of design principles are positioned with compressing, there is connection (fixed mount supporter), regulation (compressing angle and compressing depth) and compressing Functions such as (nasions).Coordinate special gland frame, reach and be accurately positioned.This structure is carved by not-go-end 172, supporter 225, last item Degree 243, last item set 244, the tight silk 245 of last item, the tight silk hole 246 of last item, nose pressure 247, last item 248, nose teeth nut 249, base tooth 250th, nose tooth scale 251, turn tooth 252, axle bed 253, turn tooth axle 254 and base tooth axle sleeve 255 forms.Base tooth axle sleeve 255 is through branch Support body 225 and be in hollow tubular structure, base tooth 250, which is located at one end of base tooth axle sleeve 255 and fixed with supporter 225, to be linked as One.Turn tooth 252 to be intermeshed with base tooth 250, and send and turn the traveling of tooth axle 254 in base tooth axle sleeve 255, turn on tooth axle 254 Car has screw thread, is screwed with the phase of nose teeth nut 249.Nose tooth scale 251 is covered with base tooth 250 and the side for turning tooth 252.Axle bed 253 One end is fixed with turning tooth 252, another end dissociative and vertical direction through have last item cover 244.Traveling in hollow last item set 244 There is freely slidable last item 248.Last item scale 243 is distributed in the surface of last item 248, and in strip, convex to float on last item 248 whole On major axis.The tight silk hole 246 of last item is located at the free end surfaces of axle bed 253, and runs through in last item set 244, the tight silk hole 246 of last item Interior car has screw thread, is rotary with the tight silk 245 of last item outside.The one end of last item 248 connects not-go-end 172, other end connection nose pressure 247, nose pressure 247 In inverted " v ".

4. cam-types lock pillar 263 is the fulcrum of three pin dome shapes, in " product " font structure.Mainly use two kinds of principles： Increasing friction force is realized in space filling, completes the principle that both combine closely；And cam-type extrusion principle, both are used cooperatively The auxiliary post of fixed locking.There is connecting bolt seat 153 (i.e. head bottom plate 147).This structure is by stop pin 148, cam pack 149th, auxiliary post 150, swell latches component 151, expansion hole 152, plug housing 153, carry that the base of a fruit 154, latch positioning be recessed 155, standard seat 156 Formed with Quick Release mouth 157.Main body is the auxiliary post 150 of a column structure.The base of a fruit 154 that carries of truncated cone shape passes through the phase of standard seat 156 Company together constitutes the top of auxiliary post 150；Lower end is connected with swell latches component 151；Stage casing side wall oblong openings are formed soon Tear mouth 157 open；Matching used with main body is plug housing 153, is designed with expansion hole 152 thereon；Stop pin 148 is positioned at expansion hole 152 beads, the expansion madial wall lower end of hole 152 are designed with latch positioning recessed 155.Wherein cam pack 149 is by latch post 8, auxiliary post 150th, Quick Release mouth 157, quick-release handle 158, cam 159, camshaft bearing 161, camshaft 162, cam chair 163, latch spring 164 Collectively formed with spring base 165.Design is hollow in auxiliary post 150, and inwall sends camshaft 162 and cyclic structure spring respectively up and down Seat 165；Latch post 8 is through spring base 165 and traveling is in hollow auxiliary post 150, and its one is connected to swell latches component Expanded spheres 15 in 151, other end connection cam chair 163, and with the sliding contact of cam 159；Latch spring 164 engages (stress) Between cam chair 163 and spring base 165.Camshaft bearing 161 freely rotates through cam 159 around camshaft 162；Cam 159, to the outside upper quick-release handle 158 for sending sheet, stretch out in Quick Release mouth 157, by quick-release handle 158 with moving cam 159 Rotate.Wherein swell latches component 151 is by latch post 8, expanding petal 10, latch convex 11, expanded spheres 15, valve ditch 16, ball line 17th, auxiliary post 150, anti-rotation lack 160, column base 167 and valve edge 168 collectively forms.Column base 167 is annularly embedded on auxiliary post 150； It is to be recessed anti-rotation to lack 160 in the cyclic structure of column base 167；The expanded spheres 15 sent by the end of latch post 8 are contained in by auxiliary In the cavity that the expanding petal 10 that the end of post 150 is sent surrounds；Valve ditch 16, the design of lateral wall hypomere is distributed with the madial wall of expanding petal 10 There is latch convex 11, lower last edge is designed to the valve edge 168 of wedge；Ball line 17 is designed with expanded spheres 15, with the phase of valve ditch 16 It is suitable.

3rd, negative pressure pillow is formed for shearing lock head frame assembly 402 and negative pressure 401 component two parts of headrest.

1., shearing lock head frame assembly 402 by shoulder bottom plate 141, position-limit foot hole 142, headrest groove 298, shoulder groove 144, shearing lock Component 145 and head bottom plate 147 are formed, and the structure is the substrate frame of head positioning, is agent structure, by trapezoidal head bottom plate 147 are connected composition with the shoulder bottom plate 141 being square.Head bottom plate 147 concavity forms headrest groove 298.Its surface caves inward Three holes arranged in a triangle are formed, lower parallel is arranged with two position-limit foot holes 142 (i.e.：Previously mentioned position-limit foot Hole 297).The 3rd hole and head bottom plate 147 it is trapezoidal on angle line on have shearing lock set 145.Wherein shear lock group Part 145 cuts 104 by lockhole component 101, upper power, cuts shaft assembly 105, cutting seat 108, exert oneself to cut 110, lower key bar 111, cone only 112, Key conical ring 113, key cone 114, cone chamber 115, upper key bar 116, spring base 117, button spring 118 and button 131 collectively form. The shearing lock set 145 is to be embedded in component in a bottom plate 147, wherein cutting seat 108 and head bottom plate 147 is integrated.Shearing The agent structure of lock set 145 is scissor-shaped, cuts 104 by the upper power in " C " font and exerts oneself to cut 110 around cutting in yi word pattern Shaft assembly 105 is formed, and lockhole component 101 is located therein one end, and the other end is cut the upper He of key bar 116 that 104 ends send by upper power The lower key bar 111 sent by exerting oneself to cut 110 ends forms, and two bars are horizontal and are tangential on key cone 114.Key cone 114 is presented Cone shape, traveling is in cutting in the key conical ring 113 on seat 108.Cone stops 112 positioned at the top of key cone 114, with button spring 118 are connected with the spring base 117 in " 7 " font, and button 131 and key cone 114, which exposes, to be cut the one side of seat 108 and be connected.Wherein lockhole Component 101 cuts 104 by upper power, exerts oneself to cut 110, lower locking bar 119, left rod cavity 120, lock hole 121, upper lock rod 122, right rod cavity 123 Formed with cavity wall 137, the structure is the direct mechanism of fastening and locking.The closing of the one end of hole 121 is locked, the other end passes through and cuts seat 108 (or head bottom plates 147), it is opened on headrest groove 298.The lock two side of hole 121 lacks convexes into right rod cavity 123 and left rod cavity as interior 120, upper lock rod 122 that 104 ends send is cut and by exerting oneself to cut 119 liang of bars of lower locking bar that 110 ends send in level by upper power State is respectively accommodated in right rod cavity 123 and left rod cavity 120, and upper lock rod 122 and lower locking bar 119 mutually lean in the presence of elastic force Hold together, terminate in the cavity wall 137 of both sides rod cavity.Shaft assembly 105 is wherein cut to cut 104 by upper power, exert oneself to cut 110, lower bullet branch 124, return Multiple spring 125, axle 126 is cut, bearing 127, upper bullet branch 128, upper shell hole 129 and lower bullet branch groove 130 is cut and forms, for the shearing lock group The support skeleton structure of part 145.Cut seat 108 and send and cut axle 126, upper power cuts 104 and to exert oneself to cut 110 mutually overlapping through cutting Bearing 127.125 sets of returning spring is around in the top for cutting axle 126 and sends bullet branch 128 and Xia Dan Zhi124Liang Ge branches, upper bullet The wedging of branch 128 cuts the upper shell hole 129 on 104 and act on power positioned at upper power cuts 104；Lower bullet branch 124, which is caught in be located at, exerts oneself to cut Lower bullet branch groove 130 in 110 simultaneously acts on and exerts oneself to cut 110.

2., negative pressure headrest assemblies 401 are made up of headrest limit assembly 138, particulate bag 139 and vacuum valve 140, be head The cavity plate component of sizing.Particulate bag 139 is that agent structure is in rectangular shape, and bottom is inlaid with headrest limit assembly 138, side wall Corner opening has vacuum valve.Wherein rest the head on limit assembly 138 by billiards 500, gentle slope portion 132, cone stop 133, cone body 134, Headrest seat 135, gradually tight line 136 and position-limit foot hole 146 form, and are the critical components of headrest position-limiting action.Sent out on headrest seat 135 It is in the cone body 134 of circular cone structure to go out, and the cone stop 133 of circular cone shape, gentle slope portion are up sequentially connected from the cone substrate of body 134 132 and hemispheric billiards 500, gradually tight line 136 is wherein covered with gentle slope portion 132.

4th, head film by shoulder film 1, shoulder bar 2, the film fourth of the twelve Earthly Branches 3, bar Positioning bean 4, bar handle 5, noodles 6, top bar 7, teleblem gap 9, Cervacoria gap 12, mouth and nose lack that 13, ear lacks 14, cervacoria 18, facial mask 34 and teleblem 35 collectively form.This film agent structure is by teleblem 35th, four pieces of laminar film head and the tail such as facial mask 34, cervacoria 18 and shoulder film 1 are sequentially connected composition.Teleblem 35 is in isosceles trapezoid, and two waist edge are swum From formation teleblem gap 9.Top edge connects top bar 7, and handing-over marginal center is provided with bar handle 5；Respectively it is distributed with close to the top both ends of bar 7 One through borehole structure --- the film fourth of the twelve Earthly Branches 3 of top bar 7, surface of the bar Positioning bean 4 in the middle part of top bar 7.Its lower edge and facial mask 34 connect.Facial mask 34 is in quadrangle, and centre is designed with oval mouth and nose and lacks 13, and its both sides middle part is designed with ear Lack 14；Two noodles 6 are located at the left and right edges of facial mask 34 respectively, and it joins marginal center and is provided with bar handle 5；Three film fourths of the twelve Earthly Branches 3 It is equally spaced and runs through noodles 6, surface is equidistantly provided with bar Positioning bean 4 between it.The lower edge of facial mask 34 is connected to cervacoria 18.Neck Film 18 is in isosceles trapezoid, and two waist edge are free to form cervacoria gap 12；Its lower edge is connected with shoulder film 1.Shoulder film 1 is in quadrangle, its The right and left is respectively connected with a shoulder bar 2, and handing-over marginal center is respectively provided with a bar handle 5；Respectively it is distributed close to the both ends of shoulder bar 2 There is borehole structure --- the film fourth of the twelve Earthly Branches 3 for running through film bar, bar Positioning bean 4 is positioned at the surface at the middle part of top bar 7.Its lower edge dissociates.

Two support columns contact that five, porus acusticus externus fixators are mainly sent by fixed support resists two porus acusticus externus and realizes head The braking rotated on portion's sagittal direction of principal axis.It is made up of head bottom plate 147, cam-type lock pillar 263 and porus acusticus externus contact assembly 170.Outside Earhole contact assembly 170 is connected by self structure with wherein cam-type lock pillar 263 forms an entirety, and two pieces is distributed in head altogether Bottom plate 147 is in the projection at porus acusticus externus position.

1. porus acusticus externus contact assembly 170 turns tooth 175 by not-go-end 172, ear sagittal axis 173, ear sagittal axis seat 174, ear, ear tooth is carved Degree 176, ear teeth nut 177, ear base tooth 178, ear toothholder 179, hoop chamber 180, lock pillar anchor ear 181, ear sagittal axis set 182, ear sagittal axis Tight silk hole 183, the tight silk 184 of ear sagittal axis, ear sagittal axis scale 185, ear crownshaft seat 186, ear crownshaft set 187, ear crownshaft 188, earplug 189th, the tight silk hole 190 of ear crownshaft, the tight silk 191 of ear crownshaft, 194 common structure of ear crownshaft scale 192, ear tooth axle sleeve 193 and ear tooth axle Into.This structure is overall in same plane form of zigzag.The lock pillar anchor ear 181 of ring-type sends ear toothholder 179.Ear tooth axle sleeve 193 Through ear toothholder 179 and it is in hollow tubular structure, ear base tooth 178 is located at one end of ear tooth axle sleeve 193 and consolidated with ear toothholder 179 It is fixed.Ear turns tooth 175 and is intermeshed with ear base tooth 178, and the concurrent traveling of produce agaric tooth axle 194 is in ear tooth axle sleeve 193, ear tooth axle 194 Getting on the bus has screw thread, is screwed with the phase of ear teeth nut 177.Ear tooth scale 176 is covered with the side for turning tooth 175 in ear base tooth 178 and ear. The one end of ear sagittal axis seat 174 turns tooth 175 with ear and fixed, another end dissociative and in the horizontal direction through have ear sagittal axis cover 182.Hollow Traveling has freely slidable ear sagittal axis 173 in ear sagittal axis set 182.Ear sagittal axis scale 185 is distributed in the surface of ear sagittal axis 173, is in Strip is convex to be floated on 173 whole major axis of ear sagittal axis.The tight silk hole 183 of ear sagittal axis is located at the free end surfaces of ear sagittal axis seat 174, and Run through in ear sagittal axis set 182, car has screw thread in hole, is rotary with the tight silk 184 of ear sagittal axis outside.The one end of ear sagittal axis 173 connects not-go-end 172, other end engaging lug crownshaft seat 186 is simultaneously fixed.Ear crownshaft set 187 is horizontal to run through ear crownshaft seat 186, and with ear sagittal axis 173 Vertically.Traveling has freely slidable ear crownshaft 188 in hollow ear crownshaft set 187, and ear crownshaft scale 192 is distributed in ear hat The surface of axle 188, float in strip is convex on 188 whole major axis of ear crownshaft.The tight silk hole 190 of ear crownshaft is located at ear crownshaft seat 186 Free end surfaces, and run through ear crownshaft set 187 in, car has screw thread in hole, is rotary with the tight silk 191 of ear crownshaft outside.Ear crownshaft 188 One end connects not-go-end 172, other end connection earplug 189.

2. cam-types lock pillar 263 is consistent with structure described in the eccentric sliding ball fixed mount 310 of head bone, it is 4. described to refer to two.

The utility model is that incidence accurate radiotherapy positions fixed system.The fixed mount passes through to upper limb body, crotch, pillow The braking of the rigid bone marks such as bone, neck rear portion, maxilla, the nasion, facial bone and porus acusticus externus is spacing to reach final positioning.Its The principle of middle various pieces is described as follows using advantage：1. the fixed needs of the relative position of liang porus acusticus externus, are missed to end rotation The control of difference plays a key effect；The direction of upper limbs limiter and crotch stopper detents 2. (i.e. the direction of the stress of handle 37) with Torque-adjusting helically crossing condition, had both fully achieved one-way brake (locking state)；The accurate control of fine setting is realized again； 3. the intersection force structure design science of cylinder locking structure and pressing plate, without having to worry about releasing for fixation during use；4. half The eccentric step locking of locking one of circle, simplifies, and can make it that the operation of technician is more simplified and convenient；5. spill headrest groove is answered Occurred with the human body such as pinching incident of injury can be avoided；6., the design of shoulder, body integrated board can be by the displacement error of incidence Control minimum；7. the design of gear engagement realizes that adjustment angle is more convenient and accurate；8. head bone anchor bias Design is it is possible to prevente effectively from fixator realizes that dosage is more accurate to the blocking effect of ray during vertical irradiation；9. silica gel material It is more accurate that the nose pressure of making is bonded with bone mark, realizes comfortableness and fixed double goal；10. universal sliding ball and The moulding application of silica gel realizes being accurately positioned for personalization；11. the design of pressure tongue block can evade tongue body completely and oral cavity is glued The irradiation of film, its higher repeatability is also ensure that while normal organ is reduced by amount；12. expansion lock and cam Quick Release Structure can be fully achieved to the firm locking of auxiliary post 150 and the needs dismantled rapidly；13. particulate is extruded to shape, principle is first Using the positioning on head so that personalized location technology is applied；14. the spacing braking of Tenon for truncated cone shape of resting the head on It can have the function that gradually to fasten in the case of gravity；15. elastic force, which dexterously combines lever stress principle, is applied to lock tightly Gu；16. it is simplified and convenient that the detailed design of a film hommization can make it that technician operates.He can be fully achieved to human body head Spacing fixation, can reach or close to zero shift；Efficiently solve all drawbacks existing for current head radiotherapy location structure And deficiency.The utility model is designed reasonably, easy to operate, safe, environmental protection, fixed effect is obvious, practicality and versatility all compared with By force.

Brief description of the drawings

Fig. 1,3 are fixed base arrangement schematic diagrames.

Fig. 2 is a membrane structure schematic diagram.

Fig. 4,5 are the schematic diagrames of column type locking structure 109.

Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12 are the structural representations of upper limbs limiter 296.

Figure 13,14,15 are the structural representations of head bone bias fixed mount 310.

Figure 16,17,18,19 are the structural representations of maxilla (triangle card) support component 229.

Figure 20,21,22,23,24,25,26 are to sting device to slide the structural representation of ball component 230.

Figure 27,28,29 are the structural representations of nasion fixator 260.

Figure 30,31,32 are the structural representations of cam-type lock pillar 263.

Figure 33 is negative pressure pillow structural representation.

Figure 34,35,36,37,38,39 are the shearing lock structural representations of head frame assembly 402.

Figure 40,41 are the structural representations of negative pressure headrest assemblies 401.

Figure 42 is porus acusticus externus fixer structure schematic diagram.

Figure 43,44 are the structural representations of porus acusticus externus contact assembly 170.

Embodiment

The utility model combination accompanying drawing closes embodiment and is further described.

The semicircle ear mouth and nose centering type radiotherapy incidence of embodiment 1 positioning negative pressure pillow flat board fixed mount

Referring to Fig. 1, Fig. 2, Fig. 3, Figure 13, Figure 33 and 42.The utility model is fixed by fixed bottom plate, head bone center Frame, negative pressure pillow, head film and the part of porus acusticus externus fixator five composition, five need to be used cooperatively.

First, referring to Fig. 1, Fig. 3, fixed bottom plate is by headrest groove 298, position-limit foot hole 297, shoulder bottom plate 290, bottom plate positioning hole 299th, bottom plate combined positioning hole 301, body groove 304, body bottom plate 305, crotch limiter 309, bottom plate slope 300, upper limbs limiter 296th, hole 152, column type lock assembly 109 and head bottom plate 147 is expanded to collectively constitute.Agent structure is one piece of isosceles trapezoidal structure Head bottom plate 147, rectangle structure shoulder bottom plate 290 and the three of body bottom plate 305 form.Rectangular headrest groove 298 is located at head bottom The middle position on the surface of plate 147 simultaneously keeps lower edge consistent with it.The long edge in both sides of headrest groove 298 is respectively connected with 3 tool column types Locking structure 109,3 tool column type locking structure, 109 or so the parallel fixation cell wall 19 for being connected as one, forming strip of homonymy With cylinder briquetting 58；Homonymy 3 has on the surface of head bottom plate 147 in the outside of column type locking structure 109 and respectively has a circular depressed Structure --- expansion hole 152.This hole is the connecting hole of porus acusticus externus fixator 311 and head bottom plate 147.The headrest side short side of groove 298 It is connected with 2 tool column type locking structures 109 and is connected.Opposite side short side dissociates.I.e.：The He of fixation cell wall 19 of both sides long side The fixation cell wall 19 of side short side forms the headrest groove 298 of " C " shape；The wherein non-middle position in upper edge surface of head bottom plate 147 (is leaned on Certain nearly one end) the expansion hole 152 that is formed of circular depressed.This structure is the connecting hole of head bone center fixed mount and head bottom plate 147. The depression in the surface of groove 298 of resting the head on forms three position-limit foot holes 297 of conical structure, positioned at the center of headrest groove 298, presents Triangle disposition arranges, and forms the effect that the limitation to headrest shifts.The connection of shoulder bottom plate 290 of quadrangle and the side of head bottom plate 147 Edge, 2 tool column type locking structures 109 are each provided with its two short edge placement, homonymy is connected two-by-two, i.e. both fixing grooves Wall 19 is connected as a single entity.The outer center of 2 tool column type locking structure 109 of homonymy is each provided with an expansion hole 152.Shoulder bottom plate 290 surfaces are respectively equipped with bottom plate combined positioning hole 299 and bottom plate positioning hole 301 close to fixed cell wall 19, are formed to unsplit bed(-)plate Limitation displacement effect.The one end of body bottom plate 305 is connected with shoulder bottom plate 290 and keeps edge consistent, and the other end connects and bottom plate inclined Slope 300.The wherein middle position concave shape adult groove 304 of body bottom plate 305.The centre position at 304 liang of edges of body groove is respectively arranged with One upper limbs limiter 296.Crotch limiter 309 is arranged at the lower end of body groove 304, and neat with the lower short side edge of body bottom plate 305 It is flat.

1. referring to Figure 4 and 5, " column type locking structure 109 " is by fixed cell wall 19, fixed tenon 20, fixed bottom plate 25, tenon line 27th, compress line 57, cylinder briquetting 58, connecting pole 59, cylinder axis 60, cylindrical base 61, cylinder spanner 62 and cylinder leave blank it is 63 common With composition.Fixed cell wall 19 is the sphenoid of a upper-thin-lower-thick, and it is vertically connected at an edge of fixed bottom plate 25, fixed cell wall The structural form of 19 wedge bodies makes it possible to preferably attach and be suitable for the curved-surface structure of human body.The other edge of fixed bottom plate 25 Middle part is connected with cylindrical base 61, and one end dissociative and centre, which are run through, cylinder axis 60；The both ends of axle are respectively connected with mobilizable Cylinder briquetting 58, can be along pressing plate shaft axial rotation；Pulled between two cylinder briquettings 58 by the cylinder of connecting pole 59 and outer rim Hand 62 is static to be connected, and centre leaves cylinder and leaves blank 63, and corresponding is the fixation tenon 20 on fixed cell wall 19, and fixed tenon 20 is set Count into bottom and slightly push up thin circular cone structure, realize linear fastening；Its surface distributed has the tenon line 27 of a circle circle, can increase the film fourth of the twelve Earthly Branches Frictional force between 3 and fixed tenon 20.The outer of cylinder briquetting 58 is designed with close to place with the fixed phase of cell wall 19 and compresses line 57, uses In increasing the frictional force between cylinder briquetting 58 and film bar etc., fastening locking acts on.

2. referring to Fig. 6, " upper limbs limiter 296 " enters component 38, thumb wheel component 39 by arbor 36, handle 37, taenidium, referred to Pin 64, scale 65, master calibration block 88 and secondary calibration block 95 collectively form.Agent structure is to enter component in the taenidium of cuboid 38, master calibration block 88 is parallel with secondary calibration block 95 to be embedded in its both sides, and wherein master calibration block 88 enters the friendship of component 38 with taenidium Boundary position is designed with scale 65.The a certain part that arbor 36 enters in component 38 with taenidium is connected, outer by handle 37, pointer 64 Vertical with scale 65 positioned at root part of handle, the moving displacement of handle 37 can quantify to indicate that thumb wheel component is connected by scale 65 It is connected to one end that taenidium enters component 38.Referring to Fig. 7 and Fig. 8, " thumb wheel component 39 " is located at the structure and is located at limiter substrate One end, be the device directly adjusted, by tooth case lid 66, thumb wheel mouth 67, secondary braces plate 68, thumb wheel 69, side plate 70, main braces 71, Power teeth 72, form friction pattern 73, line shaft 74, transaxle 75, conversion gear 76, helical axis 77, helical tooth 78, the and of active bearings 79 Pivot pin 80 is formed.Main body is the chamber structure that secondary braces plate 68, main braces 71, tooth case lid 66 and two blocks of side plates 70 are formed.(referring to Fig. 8) the main central design of braces 71 has active bearings 79, and interior traveling has helical axis 77；Helical tooth 78 passes through the axle on helical axis 77 The clamping lock of pin 80 is realized and rotated together with helical axis 77.The line shaft 74 and transaxle 75 sent on main braces 71, with secondary braces plate 68 are connected, and thumb wheel 69 and power teeth 72 connect traveling on line shaft 74, and rely on axle latch 80 on line shaft 74 and fix Realize three while rotate, through transaxle 75, the axle that can have mercy on freely rotates dress gear changing 76.Power teeth 72, conversion gear 76 and the three of helical tooth 78 intermeshing, thumb wheel 69, which rotates to pass sequentially through, drives power teeth 72, conversion gear 76 and helical tooth 78, finally realize the rotation of helical axis 77.The form friction pattern 73 that the wheel of thumb wheel 69 increases force of sliding friction along being designed with, (referring to Fig. 7) Thumb wheel 69, in outer surface, facilitates the use of operating personnel from the partial denudation of thumb wheel mouth 67 on tooth case lid 66.Referring to Fig. 9, 10th, 11, " taenidium enters the core component that component 38 " is the accessory, by arbor 36, main braces 71, helical axis 77, reel assembly 81st, lower roll-top 82, upper lid ditch 83, last volume ring 84, upper volume ring 86, upper roll-top 87, master calibration block 88, seat guide rail 89, bottom cut board 90th, handle seat 91, seat be convex 92, seat nut 93, taenidium 94, secondary calibration block 95, silk enter groove 96, lower cover ditch 97, the and of driven bearing 99 Follower plate 100 is formed.Its agent structure is that the silk that secondary calibration block 95, master calibration block 88 and bottom cut board 90 are formed enters groove 96.It is driven Plate 100 and main braces 71 enter the both ends of groove 96 positioned at silk respectively；Two seat guide rails 89 are located at silk and entered among the two side of groove 96. Helical axis 77 enters groove by the driven bearing 99 in the active bearings 79 and follower plate 100 on main braces 71 through whole silk 96.It is covered with taenidium 94 with helical axis 77.Handle seat 91 is by the seat nut 93 positioned at its central through helical axis 77； The both sides of handle seat 91 are designed with seat convex 92, and traveling is in seat guide rail 89；When helical axis 77 rotates, taenidium 94 will pass through seat nut 93 Screw drives handle seat 91, handle seat 91 are realized due to the limitation in the present guide rail 89 of its both sides seat convex 92 and are entered the major axis of groove 96 in silk The displacement movement in direction.(referring to Figure 10) " arbor 36 " is located at the center upper portion position of handle seat 91.Upper roll-top 87 and lower roll-top 82 are divided Upper the lid ditch 83 and lower cover ditch 97 of the upper limb of the two side of groove 96 are entered in other traveling in silk, pass through upper volume ring 86 and last volume ring 84 respectively The overlapping collar is arranged at the root of arbor 36, while also constitutes the top cover that silk enters groove 96.Upper roll-top 87 and lower roll-top 82 start from Reel assembly 81 on main braces 71 and follower plate 100.When the displacement of handle seat 91 is slided, connected arbor 36 is driven simultaneously Motion, being enclosed on upper the volume ring 86 and last volume ring 84 of the root of arbor 36 will also move, the upper roll-top 87 and last volume being connected with respective ring Lid 82 will slide in respective lid ditch (upper lid ditch 83 and lower cover ditch 97).Now silk, which enters the top of groove 96, to realize the shape covered State, moved even if arbor also such.Referring to Figure 12, " formula of reel assembly 81 " two, respectively positioned at main braces 71 and follower plate On 100, for the part of curling storage cover plate.By lower roll-top 82 (or upper roll-top 87), scroll rack 85, backrush pin 98, backrush spring 399 and backrush axle 400 form.Agent structure is two relative scroll rack 85 set up, and backrush axle 400 is lain across in the middle part of both；Return Coil spring 399 is surrounded on the both ends of backrush axle 400 by backrush pin 98；Lower roll-top 82 (or upper roll-top 87) passes through lower cover ditch 97 (or upper lid ditch 83) is wound in backrush axle 400.The stress of backrush spring 399 exists compel all the time in backrush pin 98 and scroll rack 85 The elastic force potential energy for rotating backrush axle 400, realizes that upper (lower) roll-top 87 keeps the state of smooth masking.During use：Operating personnel Thumb wheel 69 is stirred, the rotation of thumb wheel 69, which will pass sequentially through, drives power teeth 72, conversion gear 76 and helical tooth 78, meshing spiral axle 77 rotation；When helical axis 77 rotates, taenidium 94 will be sent out by the screw drives handle seat 91 of seat nut 93 along seat guide rail 89 Raw displacement movement, realizes arbor 36 also while moves.The moving displacement of handle 37 can quantify to indicate by scale 65.Arbor 36 Motion drives the motion for rolling up ring 86 and last volume ring 84, and upper roll-top 87 and lower roll-top 82 are respectively along upper lid ditch 83 and lower cover ditch 97 It is subjected to displacement motion；The rotation of backrush spring 399 is promoted and pulls again, at the same time, stress is in backrush pin 98 and scroll rack 85 Backrush spring 399 the elastic force potential energy for forcing backrush axle 400 to rotate all the time be present, roll-top 87 and lower roll-top 82 are kept in realization The state of smooth masking.Whole theory of mechanics and completed using process.

3. " crotch limiter 309 " to it is foregoing " structure of upper limbs limiter 296 " and principle are similar, referring to Fig. 6,7,8, 9th, 10,11 and 12, description is the same.

2nd, referring to Figure 13, Figure 14, Figure 15, head bone bias fixed mount 310 is by head bottom plate 147, maxilla (triangle card) Support component 229, sting device cunning ball component 230, the right branch 256 of three pin fornixs, the left branch 257 of three pin fornixs, the preceding hole 259 of jaw base tooth, nose Branch 262 and cam-type lock pillar 263 form before the preceding hole 261 of root fixator 260, nose base tooth, three pin fornixs.Overall structure is in tripodia ancient cooking vessel Vertical supporting body structure.Three cam-type lock pillars 263 are three fulcrums, in " product " font structure." product " word structural base position It is connected between two cam-type lock pillars 263 with three cambered pin dome shapes；Referring to Figure 15,262 1 are propped up before three pin fornixs End connection cam-type lock pillar 263, the other end is connected on three pin dome shapes between two cam-type lock pillars 263 at bottom position And he is divided into the left right branch 256 of the pin dome shape of branch 257 and three of three pin fornixs, wherein the left branch 257 of three pin fornixs is compared with three pin fornixs The right branch 256 of structure is short --- i.e. and 262 are propped up before three pin fornixs and is not located on human body head median sagittal plane, but in human body Portion to the left of portion, in eccentric shape.When ray vertical irradiation head, can effectively solve the problems, such as that servicing unit stops ray.Three Pin dome shape is realized locking with head bottom plate 147 by cam-type lock pillar 263 and separated.The middle part of branch 262 is horizontal before three pin fornixs Through having maxilla (triangle card) support component 229 and the preceding hole 259 of jaw base tooth, both are separated by a certain distance.The preceding hole 259 of jaw base tooth Standby (front and rear regulation) jack for acting as maxilla traveller fixator 258.Sting device cunning ball component 230 and be movably connected on the upper jaw Bone (triangle card) support component 229；Nasion fixator 260 and the preceding hole of nose base tooth 261 are horizontal through in branch 262 before three pin fornixs Top, both are also separated by a certain distance.Standby (the front and rear regulation) that act as nasion fixator 260 in the preceding hole 261 of nose base tooth is inserted Hole.Wherein each sub-unit is as follows：

1. is referring to Figure 16-Figure 19, maxilla (triangle card) support component 229 is by the tight silk 198 of jaw transverse axis, the tight silk of jaw transverse axis Hole 199, jaw transverse axis seat 203, jaw teeth nut 204, jaw tooth axle 205, jaw tooth scale 206, jaw turn tooth 207, supporter 225, jaw base Tooth 226, jaw tooth axle sleeve 227 and triangle neck 231 form.The structure has connection (fixed mount supporter) and regulation (fixed angles Degree and transverse axis displacement) function.Referring to Figure 18, jaw tooth axle sleeve 227 is through supporter 225 and is in hollow tubular structure, jaw base Tooth 226, which is located at one end of jaw tooth axle sleeve 227 and fixed with supporter 225, to be connected as a single entity.Jaw turns tooth 207 and jaw base tooth 226 is mutual Engagement, and jaw tooth axle 205 is sent, the traveling of jaw tooth axle 205 can freely turn in jaw tooth axle sleeve 227 relative to jaw tooth axle sleeve 227 It is dynamic.Referring to Figure 17, jaw tooth scale 206 is covered with the side for turning tooth 207 and jaw base tooth 226 in jaw, convenient to read (jaw transverse axis seat 203) Related rotation angular values.Referring to Figure 19, jaw tooth axle 205 is got on the bus and has screw thread, is screwed with the phase of jaw teeth nut 204.Jaw transverse axis seat 203 One end turns tooth 207 with jaw and fixed, and both can realize synchronous axial system.Another end dissociative and in surface vertical direction evolution v notch v Triangle neck 231.Traveling is stung to the accessory of device cunning ball component 230 in it.The tight silk hole 199 of jaw transverse axis is located at jaw transverse axis seat 203 Free-end outer surface, and run through in triangle neck 231, car has screw thread in hole, is rotary with the tight silk 198 of jaw transverse axis outside.

2., referring to Figure 20, wherein stinging device slides ball component 230 as free component, it passes through triangular prism 233 and maxilla (three Angle card) the triangle neck 231 in support component 229 is connected.It is the direct medium for connecting maxilla and supporter.It is by Sheng glue basket 209th, excessive glue hole 210, sting device bar 211, sting edge 213, biting teeth position 214, solid tongue position 215, spatula 216, glue basket bottom plate 219, contain Glue basket back plate 220, sting device 228, three angle index 232, triangle 233, post convex 234, pressure tongue block 235, upper tooth sting edge 236, sliding ball 237th, ball chute mouth 238, sting that bar mouth 239, ball groove 240, upper tooth sting position 241 and halfround bar slice 242 is formed.Referring to Figure 21, triangular prism 233 be isosceles right angle trigonometry column body structure, has two right-angled side faces and a string flank side surface.The one end of triangular prism 233 passes through String flank side surface is vertically connected with containing the side of glue basket 209, another end dissociative.The string flank side surface edge designs of triangular prism 233 have triangle Scale 232, it is convenient to read triangular prism 233 and the relative displacement in the X direction of jaw transverse axis seat 203.Triangular prism 233 is by traveling In in triangle neck 231, two right-angled side faces fit the side respectively with triangle neck 231, and the design of triangle column makes Upper and lower slip can only be done in triangle neck 231 by obtaining triangular prism 233 (without spin motion occurs).The tight silk 198 of jaw transverse axis It will force in the string flank side surface of triangular prism 233, it is possible to achieve locking.Referring to Figure 20, it is cube structure to contain glue basket 209, top Face covers without plate, and side wall has four sides., wherein three lateral openings are respectively designed with 4 excessive glue holes 210, referring to Figure 21, fourth face is Contain glue basket back plate 220.Glue basket bottom plate 219 constitutes the bottom plate for containing glue basket 209.Referring to Figure 23, glue basket bottom plate 219 is divided to inside and outside two Face.The ball chute mouth 238 of opened round among inner face, depression forms ball trough in semicircle 240 to notch downwards.Open circle in the bottom of ball groove 240 Shape mouth runs through glue basket bottom plate 219, and in the outside of glue basket bottom plate 219, bar mouth 239 is stung in opening formation.Referring to Figure 22, the cunning of spherical structure Ball 237 is located in ball chute mouth 238, and surface both is tangent.Sting device bar 211 to run through and be fixed on sliding ball 237, sting device bar 211 Positioned at containing in glue basket 209, (referring to Figure 24) bottom passes upper part from bar mouth 239 is stung, and connects and stings device 228.(during use) contains glue basket Moulding silica gel will be filled in 209, that is, stings device bar 211 and be will drown out positioned at the upper part contained in glue basket 209 in silica gel, moulding silica gel Because the factor of gravity will be filled in excessive glue hole 210, after to be solidified, silica gel will be increased and contain the frictional force between glue basket 209, Stinging device bar 211 will also keep bonding on-position.Referring to Figure 25, the part that the grade of device 228 part is Buccodental occlusion is stung, is risen Fixed maxilla, mandibular and the effect for pushing tongue body.The halfround bar slice of overall structure semicircular in shape 242 and in Elliptic Cylinder Press both assemblys of tongue block 235.Wherein the circular arc side of halfround bar slice 242 has side composition to sting edge 213, and diameter side is boundless free.Post Convex 234 is concentric isometrical with the halfround bar slice, and the horizontal plane of post convex 234 flushes higher than semicircle plate plane with stinging edge 213.Sting edge The semi-circular shape structure that both 213 medial surfaces and convex 234 side of post surround in the plane of halfround bar slice 242 is biting teeth position 214.(use When) moulding silica gel will be filled in biting teeth position 214, lower tooth will be engaged in biting teeth position 214, and tooth print is formed after to be solidified, is realized The guarantee of repeatability.Referring to Figure 26, for pressure tongue block 235 positioned at the middle part at the back side of halfround bar slice 242, lower edges are respectively semicircle The semi arch of the partial arc and post convex 234 of piece 242, left and right sides are dissociated.Wherein the upper limb of tongue block 235 is pressed to have side composition Lower tooth stings edge 236, and the horizontal plane of post convex 234, which is higher than the plane of pressure tongue block 235 and stings edge 236 with lower tooth, to be flushed.The side of post convex 234 The plane upper half cirque structure of pressure tongue block 235 that the medial surface that face and lower tooth sting edge 236 surrounds between the two is that upper tooth stings position 241.Moulding silica gel will fill (during use) stings in position 241 in upper tooth, and upper tooth will be engaged in tooth and sting in position 241, after to be solidified Tooth print is formed, realizes the guarantee of repeatability.When stinging device assembly and being placed in that upper and lower tooth is engaged respective position respectively in mouth, By by the pushing of pressure tongue block 235, the intra-oral anatomy position of script will change tongue body.To normal organ during beneficial to radiotherapy Such as：Tongue body, mucous membrane of mouth, mandibular joint, parotid gland etc. are protected.

3., referring to Figure 27,28 and 29, nasion fixator 260 is the direct part for oppressing nasion tissue.By being sent out on fixed mount The supporter 225 gone out is (i.e.：Bone mark (nasion) realization that 262) compressing face is propped up before three pin fornixs is relatively fixed.The structure Gear engagement and compressing two kinds of design principles of positioning are employed, there is connection (fixed mount supporter), regulation (compressing angle and pressure Compel depth) and oppress the function such as (nasion).By not-go-end 172, supporter 225, last item scale 243, last item set 244, the tight silk of last item 245th, the tight silk hole 246 of last item, nose pressure 247, last item 248, nose teeth nut 249, base tooth 250, nose tooth scale 251, turn tooth 252, axle Seat 253, turn tooth axle 254 and base tooth axle sleeve 255 forms.Referring to Figure 28, base tooth axle sleeve 255 is through supporter 225 and in hollow Tubular structure, base tooth 250, which is located at one end of base tooth axle sleeve 255 and fixed with supporter 225, to be connected as a single entity.Turn tooth 252 and base tooth 250 intermeshings, and send and turn the traveling of tooth axle 254 in base tooth axle sleeve 255, and can freely rotate.Nose tooth scale 251 is covered with Base tooth 250 and the side for turning tooth 252, the convenient numerical value for reading related rotation angle.Referring to Figure 29, turn tooth axle 254 and get on the bus have spiral shell Line, screwed with the phase of nose teeth nut 249.The one end of axle bed 253 is fixed with turning tooth 252, and both can realize synchronous axial system.The other end is swum Running through from and vertical direction has last item to cover 244.Traveling has freely slidable last item 248 in hollow last item set 244.Referring to Figure 28, last item scale 243 are distributed in the surface of last item 248, float in strip is convex on 248 whole major axis of last item.The convex float of strip The last item scale 243 of meter causes last item 248 to do upper and lower slip in last item set 244 (without spin motion occurs). The tight silk hole 246 of last item is located at the free end surfaces of axle bed 253, and runs through in last item set 244, and car has screw thread in hole, is rotary with outside The tight silk 245 of last item.The tight silk hole 246 of last item rotates stress in last item 248, realizes locking.Last item 248 1 terminates not-go-end 172, another Nose pressure 247 is terminated, nose pressure 247 is in inverted " v ", to oppress the direct part of the nasion.

4., referring to Figure 30,31 and 32, cam-type lock pillar 263 is the fulcrum of three pin dome shapes, in " product " font structure. There is connecting bolt seat 153 (i.e. head bottom plate 147).It is inserted by stop pin 148, cam pack 149, auxiliary post 150, expansion Pin assemblies 151, expansion hole 152, plug housing 153, carry the base of a fruit 154, latch positioning recessed 155, standard seat 156 and Quick Release mouth 157 and form.It is main Body is the auxiliary post 150 of a column structure.The base of a fruit 154 that carries of truncated cone shape together constitutes auxiliary post 150 by the way that standard seat 156 is connected Top；Lower end is connected with swell latches component 151；Stage casing side wall oblong openings form Quick Release mouth 157；It is supporting with main body Plug housing 153 is used, is designed with expansion hole 152 thereon；Opening's edge lateral border of the stop pin 148 positioned at expansion hole 152；It is swollen The swollen madial wall lower end of hole 152 is designed with latch positioning recessed 155.Referring to Figure 31, wherein cam pack 149 is by latch post 8, auxiliary post 150th, Quick Release mouth 157, quick-release handle 158, cam 159, camshaft bearing 161, camshaft 162, cam chair 163, latch spring 164 Collectively formed with spring base 165.Design is hollow in auxiliary post 150, and inwall sends camshaft 162 and cyclic structure spring respectively up and down Seat 165；Latch post 8 is through spring base 165 and traveling is in hollow auxiliary post 150, and its one is connected to swell latches component Expanded spheres 15 in 151, other end connection cam chair 163, and with the sliding contact of cam 159；Latch spring 164 engages (stress) Between cam chair 163 and spring base 165；Latch post 8 can be slided freely up and down relative to spring base 165；Camshaft bearing 161 Freely rotated around camshaft 162 through cam 159；Cam 159 stretches out in fast to the outside upper quick-release handle 158 for sending sheet Tear mouth 157 open, pass through rotation of the quick-release handle 158 with moving cam 159.Cam 159 designs to be eccentric, and its diameter occurs with rotation Change --- i.e. camshaft 162 and the relative distance of cam chair 163 changes, when pulling into plumbness under quick-release handle 158 Maximum gauge is presented；Cam 159 and cam chair 163 are worked in coordination, if quick-release handle 158 from open position (level) to pass Closed position is pulled (downward vertically), and cam 159 will promote cam chair 163 to move downward --- and latch post 8 is downwardly into accordingly Lockhole, complete locking.Referring to Figure 32, wherein swell latches component 151 by latch post 8, expanding petal 10, latch convex 11, Expanded spheres 15, valve ditch 16, ball line 17, auxiliary post 150, anti-rotation lack 160, column base 167 and valve edge 168 collectively forms.The cyclization of column base 167 Shape structure is embedded on auxiliary post 150；It is a breach in the cyclic structure of column base 167 that anti-rotation, which lacks 160, and on plug housing 153 Stop pin 148 is corresponding, has the function that to prevent auxiliary post 150 from rotating；The end of latch post 8 send expanded spheres 15 be contained in by The expanding petal 10 that the auxiliary end of post 150 is sent is surrounded in cavity；Wherein expanding petal 10 is that laminated structure is flexible coupling in auxiliary post 150 End, can do it is interior receipts and abduction activity, totally four；Valve ditch 16 is distributed with the madial wall of expanding petal 10, and lateral wall hypomere is designed with Latch convex 11, lower last edge are designed to the valve edge 168 of wedge；Ball line 17 is designed with expanded spheres 15, it is relative with valve ditch 16；It is swollen Swollen ball 15 can be achieved freely up and down movable in the barreled space that four expanding petals 10 surround.

3rd, referring to Figure 33, negative pressure rests the head on this structure and is divided into shearing lock head frame assembly 402 and negative pressure 401 two parts of headrest.

1. referring to Figure 33, shearing lock head frame assembly 402 is by shoulder bottom plate 141, position-limit foot hole 142, headrest groove 298, shoulder groove 144th, shear lock set 145 and head bottom plate 147 is formed, shearing locks the substrate frame that head frame assembly 402 is head positioning, trapezoidal head Bottom plate 147 is connected with the shoulder bottom plate 141 being square forms agent structure.Head bottom plate 147 concavity forms headrest groove 298, has Accommodate headrest effect.The surface of headrest groove 298 is caved inward to form three holes arranged in a triangle, and lower parallel is arranged with Two position-limit foot holes 142 are (i.e.：Previously mentioned position-limit foot hole 297).3rd hole and the company at the trapezoidal upper angle of head bottom plate 147 Line is provided with shearing lock set 145.The effect for acting as fastening headrest in two position-limit foot holes 142, the 3rd hole have tight Gu the and double action of locking.Headrest will not be subjected to displacement in headrest groove 298 and rock.Referring to Figure 34, lock set 145 is sheared Cut 104 by lockhole component 101, upper power, cut shaft assembly 105, cutting seat 108, exert oneself to cut 110, lower key bar 111, cone only 112, key cone Ring 113, key cone 114, cone chamber 115, upper key bar 116, spring base 117, button spring 118 and button 131 collectively form.Shearing lock Component 145 is to be embedded in component in a bottom plate 147, wherein cutting seat 108 and head bottom plate 147 is integrated, shears lock set 145 Agent structure is in scissor-shaped, cuts 104 by the upper power in " C " font and exerts oneself to cut 110 around cutting shaft assembly 105 in yi word pattern Constitute overlapping, lockhole component 101 is located therein one end, the other end by upper power cut upper key bar 116 that 104 ends send and by Exert oneself to cut the lower key bar 111 that 110 ends are sent and form, two bars are horizontal and are tangential on key cone 114.Key cone 114 is in circular cone Shape, traveling and through in the key conical ring 113 cut on seat 108.Cone stops 112 positioned at the top of key cone 114, connects button Spring 118 is connected with the spring base 117 in " 7 " font, and (referring to Figure 35) button 131 and key cone 114, which exposes, to be cut the one side of seat and connect Connect.Key cone 114 under the interaction of button spring 118 and button 131 can in key conical ring 113 slidably, and by Cone only 112 down direction limitation braking.Key cone 114 is in up-thin-low-thick conical structure, when key cone 114 is up and down, The lower key bar 111 tangent with it and the relative distance of upper key bar 116 will also change.Bullet of the key cone 114 in button spring 118 Most path will be slided into all the time under power effect and two bars (lower key bar 111 and upper key bar 116) are tangent, i.e. two bars remain most short Relative distance.Referring to Figure 36, Figure 37 and Figure 38, lockhole component 101 cuts 104 by upper power, exerts oneself to cut 110, lower locking bar 119, a left side Rod cavity 120, lock hole 121, upper lock rod 122, right rod cavity 123 and cavity wall 137 are formed, and the structure is the direct machine of fastening and locking Structure.The closing of the one end of hole 121 is locked, the other end is opened on headrest groove 298 through seat 108 (or head bottom plate 147) is cut.Lock 121 liang of hole Side wall lacks and is such as recessed right rod cavity 123 and left rod cavity 120, is cut upper lock rod 122 that 104 ends send by upper power and is cut by exerting oneself 119 liang of bars of lower locking bar that 110 ends are sent, which are horizontal, to be respectively accommodated in right rod cavity 123 and left rod cavity 120, and in elastic force In the presence of upper lock rod 122 and lower locking bar 119 mutually draw close all the time, terminate in the cavity wall 137 of both sides rod cavity.Referring to Figure 39, cut Shaft assembly 105 cuts 104 by upper power, exerts oneself to cut 110, lower bullet branch 124, returning spring 125, cut axle 126, cut bearing 127, upper bullet branch 128th, upper shell hole 129 and lower bullet branch groove 130 are formed, for the support skeleton structure of the shearing lock set 145.Cut seat 108 and send and cut Axle 126, upper power cuts 104 and to exert oneself to cut 110 mutually overlapping through cutting bearing 127.125 sets of returning spring, which is around in, cuts axle 126 Top simultaneously sends bullet branch 128 and Xia Dan Zhi124Liang Ge branches, and the upper shell hole on 104 is cut in the upper wedging of bullet branch 128 positioned at upper power 129 and act on power and cut 104；Lower bullet branch 124, which is caught in be located to exert oneself to cut the lower bullet branch groove 130 in 110 and act on, exerts oneself to cut 110.Upper power cuts 104 and exerts oneself to cut 110 and keeps mutually handing over the gesture cut and drawn close around cutting axle 126 in the presence of returning spring 125 Energy.

2. referring to Figure 33, negative pressure headrest assemblies 401 are by 140 groups of headrest limit assembly 138, particulate bag 139 and vacuum valve Into, be head sizing cavity plate component.Particulate bag 139 is that agent structure is in rectangular shape, and bottom is inlaid with spacing group of headrest Part 138, side wall corner opening have vacuum valve 140.Referring to Figure 40, headrest limit assembly 138 by billiards 500, gentle slope portion 132, Bore stop 133, cone body 134, headrest seat 135, gradually tight line 136 and position-limit foot hole 146 form, be negative pressure headrest position-limiting action pass Key member.The cone body 134 in circular cone structure is sent on headrest seat 135, the frustum of a cone is up sequentially connected from the cone substrate of body 134 Cone stop 133, gentle slope portion 132 and the hemispheric billiards 500 of shape, pyramidal structure is formed, is wherein covered with gentle slope portion 132 gradually tight Line 136.In use, the pyramidal structure will enter the lock hole 121 on headrest groove 298.The semicircular design of billiards 500 conveniently enters Hole；The locking bar of gentle slope portion 132 times 119 and upper lock rod 122 are tangent, with tapered end gradually under, and the gradually rubbing action of tight line, locking bar And the combination in gentle slope portion 132 is even closer.

Negative pressure pillow principle is explained：

1. enter lock：The upper billiards 500 of negative pressure headrest is directed at the lock hole 121 cut on seat 108, and its semicircle mellow and full design is more Conveniently enter hole；The diameter of billiards 500 is more than upper key bar 116 and the lower relative distance of key bar 111 in the lock side wall of hole 121, billiards 500 Push effect laterally is produced with upper key bar 116 and lower key bar 111, when the strength of this pushing is more than by returning spring 125 When passing to the mutual internal strength of key bar 116 and lower key bar 111, upper key bar 116 and the lower relative distance of key bar 111 add Greatly, the lock deep of hole 121 is slipped at billiards 500 and its connected position.Gentle slope portion 132 times, locking bar 119 and upper lock rod 122 are tangent, delay The upper coarse and lower fine gentle slope design in slope portion 132, with tapered end gradually under, more down block tighter, and the gradually rubbing action of tight line, The combination in locking bar and gentle slope portion 132 is even closer, and two bars reach cone stop 133, completion of locking.

2. cavity plate processed：Patient's radiotherapy patient lies down, and head is placed on negative-pressure vacuum pillow and is positioned and treated required body Behind position, a certain degree of negative pressure of vacuum is pumped to vacuum fixing cushion with vavuum pump, is pressed against each other plastic particles ball, by patient Head is molded.

3. unlock：Button press 131, when the strength of button press is more than the elastic force of button spring 118, key cone 114 will be with Squeezing action occurs for two bars (lower key bar 111 and upper key bar 116).The squeezing action is more than passes to upper key by returning spring 125 During the mutual internal strength of bar 116 and lower key bar 111, key cone 114 is relative with two bars (lower key bar 111 and upper key bar 116) Position will change, i.e., boring 114 most paths by key is moved to maximum, i.e. two bars (lower key bar 111 and upper key bar 116) Between relative distance become big.104 are cut by upper power and exert oneself to cut 110 upper lock rods 122 being respectively connected with and lower locking bar 119 Relative distance is big with time-varying, i.e. two bars (lower locking bar 119 and upper lock rod 122) will be no longer tangent with gentle slope portion 132, when two bars (under Locking bar 119 and upper lock rod 122) relative distance increase when more than the diameter of billiards 500, tapered end will from lock hole 121 skid off, Unblock is completed.

Four, are referring to Fig. 2, and head film is by shoulder film 1, shoulder bar 2, the film fourth of the twelve Earthly Branches 3, bar Positioning bean 4, bar handle 5, noodles 6, top bar 7, teleblem Gap 9, cervacoria gap 12, mouth and nose lack that 13, ear lacks 14, cervacoria 18, facial mask 34 and teleblem 35 collectively form.The utility model main body Structure is by the teleblem 35 in isosceles trapezoid, the facial mask 34 in quadrangle, the cervacoria 18 in isosceles trapezoid and the shoulder film 1 in quadrangle Joined end to end successively composition Deng four pieces of laminar films, wherein dissociating difference in the teleblem 35 and the waist edge of cervacoria 18 or so two of isosceles trapezoid Form teleblem gap 9 and cervacoria gap 12.The top lower edge of bar 7 connects teleblem 35, each one circular hole knot through top bar 7 in its both ends Structure --- the film fourth of the twelve Earthly Branches 3, can conformal phase be placed on supporting gland frame (bottom plate) and fix tenon；Two are designed between two film fourths of the twelve Earthly Branches 3 Bar Positioning bean 4, it can be supported the use with respective accessory pushes up bar 7 in fastening.Two noodles 6 are located at the left and right sides edge of facial mask 34, Three film fourths of the twelve Earthly Branches 3 are equally spaced and run through facial mask bar 6 thereon, can conformal phase be placed on supporting gland frame (bottom plate) and fix tenon； Surface is equidistantly provided with bar Positioning bean 4 between it, and it can be supported the use with respective accessory in fastening noodles 6.Mouth and nose lack 13 in ellipse Shape, positioned at the central part of facial mask 34, coordinate special gland frame, it is possible to achieve the fixation to maxilla and nasion position, Solves the head error problem brought due to neck-stretching, and breach design can mitigate compressing (the relaxing of wearing of increase of facial mask Adaptive).Mouth and nose lack 13 both sides middle parts and are respectively designed with ear scarce 14, solve the head error come due to cervical rotation, curved bel Problem.Two shoulder bars 2 are located at the left and right sides edge of shoulder film 1, and two film fourths of the twelve Earthly Branches 3 are distributed and through the both ends of shoulder bar 2, can conformal phase It is placed on supporting gland frame (bottom plate) and fixes tenon；Bar Positioning bean 4 is provided among its surface, its can with respective accessory is supporting makes For fastening shoulder bar 2.Top bar 7 joins marginal center with shoulder film 1 with facial mask 34, shoulder bar 2 with teleblem 35, noodles 6 and is respectively provided with bar drawing Hand 5, it is easy to the installation and dismounting of the part such as a film and supporting base plate.

For five, referring to Figure 42, porus acusticus externus fixator is the part for limiting end rotation, is connected to mortise and tenon type on a bottom plate 147 The component of the both sides of lock assembly 302.The structure is made up of head bottom plate 147, cam-type lock pillar 263 and porus acusticus externus contact assembly 170. Porus acusticus externus contact assembly 170 is connected by self structure with wherein cam-type lock pillar 263 forms an entirety, and two pieces is distributed in altogether Head bottom plate 147 is in the projection at porus acusticus externus position.Head porus acusticus externus can be relatively fixed.

1. referring to Figure 43 and Figure 44, porus acusticus externus contact assembly 170 is by not-go-end 172, ear sagittal axis 173, ear sagittal axis seat 174, ear Turn tooth 175, ear tooth scale 176, ear teeth nut 177, ear base tooth 178, ear toothholder 179, hoop chamber 180, lock pillar anchor ear 181, ear arrow The tight silk hole 183 of axle sleeve 182, ear sagittal axis, the tight silk 184 of ear sagittal axis, ear sagittal axis scale 185, ear crownshaft seat 186, ear crownshaft set 187, The tight silk hole 190 of ear crownshaft 188, earplug 189, ear crownshaft, the tight silk 191 of ear crownshaft, ear crownshaft scale 192, ear tooth axle sleeve 193 and ear Tooth axle 194 collectively forms.This structure it is overall in same plane into "the" shape.Lock pillar anchor ear 181 and auxiliary post 150 by ring-type It is connected, lock pillar anchor ear 181 sends ear toothholder 179.Ear tooth axle sleeve 193 is through ear toothholder 179 and is in hollow tubular structure, ear base Tooth 178 is located at one end of ear tooth axle sleeve 193 and fixed with ear toothholder 179.Ear turns tooth 175 and is intermeshed with ear base tooth 178, and The traveling of ear tooth axle 194 is sent in ear tooth axle sleeve 193, ear tooth axle 194 is got on the bus and has screw thread, is screwed with the phase of ear teeth nut 177.Ear tooth Scale 176 is covered with the side for turning tooth 175 in ear base tooth 178 and ear.The one end of ear sagittal axis seat 174 turns tooth 175 with ear and fixed, another End dissociative and in the horizontal direction through have ear sagittal axis cover 182.Traveling has freely slidable ear in hollow ear sagittal axis set 182 Sagittal axis 173.Ear sagittal axis scale 185 is distributed in the surface of ear sagittal axis 173, floats in strip is convex on 173 whole major axis of ear sagittal axis.Bar The slip coaxial before and after ear sagittal axis 173 can only be done in ear sagittal axis set 182 of the ear sagittal axis scale 185 of the convex float meter of shape (and Spin motion will not occur).The tight silk hole 183 of ear sagittal axis is located at the free end surfaces of ear sagittal axis seat 174, and runs through ear sagittal axis set In 182, car has screw thread in hole, is rotary with the tight silk 184 of ear sagittal axis outside, and it can fix or limit ear sagittal axis 173 and ear sagittal axis set 182 Relative position.The one end of ear sagittal axis 173 connects not-go-end 172, and other end engaging lug crownshaft seat 186 is simultaneously fixed.Ear crownshaft covers 187 water It is flat to run through ear crownshaft seat 186, and with ear sagittal axis 173 into vertical.Traveling has freely slidable ear in hollow ear crownshaft set 187 Crownshaft 188, ear crownshaft scale 192 are distributed in the surface of ear crownshaft 188, float in strip is convex on 188 whole major axis of ear crownshaft. The ear crownshaft scale 192 of the convex float meter of strip causes ear crownshaft 188 to do the coaxial slip in left and right in ear crownshaft set 187 (without spin motion occurs).The tight silk hole 190 of ear crownshaft is located at the free end surfaces of ear crownshaft seat 186, and runs through ear hat In axle sleeve 187, car has screw thread in hole, is rotary with the tight silk 191 of ear crownshaft outside.It can fix or limit ear crownshaft 188 and ear crownshaft The relative position of set 187.The one end of ear crownshaft 188 connects not-go-end 172, other end connection earplug 189.

2. referring to Figure 30,31 and 32, cam-type lock pillar 263 and structure one described in the eccentric sliding ball fixed mount 310 of head bone Cause, it is 4. described to refer to two.

Porus acusticus externus fixator use principle is explained：

Enter lock.Four expanding petals 10 in the case of by lateral external forces, are not being remained mutual due to own material factor (interior receipts) closed configuration, the external diameter of lower end valve edge 168 are less than the diameter in the expansion hole 152 on plug housing 153, and expanding petal 10 is smoothly inserted Enter in corresponding expansion hole 152, anti-rotation scarce 160 and stop pin 148 are corresponding, until the lower floor's wall and plug housing of column base 167 153 upper strata wall fitting.Locking.When lower floor's wall of column base 167 and the upper strata wall of plug housing 153 are bonded, the outside of expanding petal 10 Latch convex 11 on wall is corresponding with the latch positioning recessed 155 on the expansion inwall of hole 152.Down pull quick-release handle 158, cam 159 rotates, and the change of diameter result in camshaft 162 and the relative distance of cam chair 163 increases --- so The slide downward of latch post 8 can just be made, promote expanded spheres 15 down to be slided in the tubular conduit that expanding petal 10 surrounds, and it is swollen The madial wall of swollen valve 10 is the thick wedge structure in the thin lower end in upper end, and expanded spheres 15 more down slide, and tubular conduit is narrower, expanded spheres 15 generate the elastic force to abduction direction to the madial wall of expanding petal 10, ultimately form the external diameter increase of the lower end of expanding petal 10, insert Recessed 155 corresponding fitting of finger setting convex 11 and latch positioning, untill mutually extruding stress balance.At the maximum outside diameter of expanded spheres 15 There is a circle ball line 17, contacted with each other with the valve ditch 16 on the madial wall of expanding petal 10, because phase mutual friction produces static make a concerted effort.Lock Only complete.Adjust external ear fixing axle.Teeth nut 177 is first unscrewed, ear turns tooth 175 and the engagement of Er Ji teeth 178 loosens, ear sagittal axis seat 174 rotate, and realize the swing in human body sagittal facial plane of ear sagittal axis 173 and ear crownshaft 188；Then the tight silk of ear sagittal axis is unscrewed 184, ear sagittal axis 173 slides in ear sagittal axis set 182, realizes that ear crownshaft 188 changes in human body sagittal axis (head pin direction) displacement Become, mobile regulation causes the upright projection of earplug 189 in (being aligned) porus acusticus externus, to screw ear teeth nut 177 and the tight silk of ear sagittal axis 184.The tight silk 191 of ear crownshaft is finally unscrewed, ear crownshaft 188 slidably, realizes earplug 189 in human body in ear crownshaft set 187 Crownshaft (left and right directions) displacement changes, and mobile regulation causes earplug 189 to contact left and right porus acusticus externus, screws the tight silk of ear crownshaft 191, complete the fixation of porus acusticus externus.Unblock.The tight silk 191 of ear crownshaft is unscrewed, ear crownshaft 188 is covered in 187 slidably in ear crownshaft, Realize that earplug 189 changes in human body crownshaft (left and right directions) displacement, mobile regulation causes earplug 189 to leave left and right external ear Hole；Then loose teeth nut 177 is sent in rotation, and ear turns tooth 175 and the engagement of Er Ji teeth 178 loosens, and ear sagittal axis seat 174 rotates, and realizes that ear is sweared The swing in human body sagittal facial plane of axle 173 and ear crownshaft 188.Quick-release handle 158 is up finally pulled, cam 159 occurs Rotate, the change of diameter result in camshaft 162 and the relative distance of cam chair 163 reduces that (now latch spring 164 also plays bullet Power acts on：So that the relative distance of cam chair 163 and spring base 165 becomes big) --- thus can slide up latch post 8 It is dynamic, pull expanded spheres 15 up to be slided in the tubular conduit that expanding petal 10 surrounds, and the madial wall of expanding petal 10 is upper end The thick wedge structure in thin lower end, expanded spheres 15 more up slide, and tubular conduit is wider, and the madial wall of expanding petal 10 produces to expanded spheres 15 Given birth to inside debit to elastic force, ultimately form the lower end of expanding petal 10 external diameter reduce, latch convex 11 and latch positioning Recessed 155 fitting dissociation.Unblock is completed.

Embodiment 2：The utility model application method

Mono- Walk：Upper limb body limits.The headrest groove 298 negative pressure headrest being put on a bottom plate 147.Patient is advised to lie low in solid Determine on frame so that head and neck tightly rest the head on outer layer close to negative pressure.Operating personnel stir the thumb wheel on upper limbs limiter 296 69, handle 37 moves up and down, the correct position that regulation to patient is held.

Bis- Walk：Crotch limits.Operating personnel stir the thumb wheel 69 on crotch limiter 309, and handle 37 moves up and down, and adjust Save the sacral region of the clamping patient of handle 37.

3rd step：Make negative pressure headrest.A certain degree of negative pressure of vacuum is pumped to negative pressure pillow with vavuum pump, makes plastics micro- Grain ball is pressed against each other, and is molded by patients head.Particularly neck area has sufficient support.

Tetra- Walk：Drawing-die.Two people coordinate the common constant temperature water tank for carrying out, the utility model being immersed to 60~70 degrees Celsius, Fully after softening, everyone lifts the film bar handle 5 on respective one side respectively, and being covered in needs fixed head, and by corresponding Film bar stretch softened various pieces head film (such as:Shoulder film 1, cervacoria 18, facial mask 34 and teleblem 35 etc.), by the film fourth of the twelve Earthly Branches 3 Snap on supporting fixation bottom plate in corresponding fixed falcon, now the oral area of patient, nose will be exposed to mouth and nose completely and lack 13 In, the porus acusticus externus of patient is exposed in ear scarce 14, treats that low temperature thermo-plastic planking is hardened aftershaping and completed.

Wu Walk：Padlock.Referring to Fig. 3, the film fourth of the twelve Earthly Branches 3 on the noodles 6 on gland film, top bar 7 and shoulder bar 2 is snapped into and matched somebody with somebody On the fixation bottom plate of set in corresponding fixed falcon 20, referring to Fig. 4 and Fig. 5, pressing plate 24 is rotated up by pressing plate shaft 26, due to Thin circular cone structure is slightly pushed up at the fixed bottom of tenon 20, can cause both the linear fastenings combined, and the structure of multi-turn tenon line 27 can protect It is static to hold fixation clip, first of locking is completed.It is flipped up the both sides, crown side, the respective cylinder briquetting in shoulder both sides of face 58, it is rotated up by cylinder axis 60, compresses line 57 and contacted with each other and locking with film bar (fixed object), object structure will be justified Post briquetting 58 stops and is locked in wherein.Due to compressing line 57 to film bar generation pressure because the eccentric design of cylinder briquetting 58 forces Power, then finally it is fastened and fixed, second locking is completed.

Liu Walk：Upper jaw bone fixation

The close connection of bottom plate is completed and fixed to head bone bias fixed mount by expanding hole 152 and cam-type lock pillar 263.

1. teeth mark is engaged：Take and sting the portion of device cunning ball component 230, position 241 is stung to the biting teeth position 214 and upper tooth stung on device 228 Plastic hinge (silica gel) is filled, is put into disease population, advises the upper and lower dental articulation of patient in corresponding tooth position, 3 minutes time is solidifying Gu so that plastic hinge is moulding according to the teeth patterning of patient.2. adjust jaw transverse axis angle：Select the preceding hole 259 of jaw base tooth or jaw Tooth axle sleeve 227, insertion jaw tooth axle 205, unscrews jaw teeth nut 204, rotates jaw and turns tooth 207 --- and i.e. transverse axis seat 203 rotates, The triangular prism 233 ultimately resulted in therethrough rotates.The upper front tooth of the near normal patient of triangular prism 233 is adjusted, is screwed Jaw teeth nut 204, jaw base tooth 226 and jaw turn tooth 207 and are intermeshed, and complete the angle locking of jaw transverse axis.3. device bar is stung in fixation 211：The tight silk 198 of jaw transverse axis is unscrewed, triangular prism 233 is put into triangle neck 231, moves up and down triangular prism 233 and jaw transverse axis seat 203 relative position, while patient advises patient to sting according to the teeth mark obtained before tightly to sting device.Sting effect of the device 228 in sliding ball 237 Under, it is possible to achieve multi-direction, multi-angle any rotation, after comfortably position is adjusted to after the occlusion of patient, screws jaw transverse axis Tight silk 198, locking, and record three angle index 232 and be worth.Realize by disease population sting device and supporter connects.Finally, to Injection plastic hinge in glue basket 209 is contained, the 211 moulding fixation of device bar will be stung.

Qi Walk：The nasion is fixed

1. the angle of adjustable axle seat 253：Base tooth axle sleeve 255 or the preceding hole 261 of nose base tooth are selected, insertion turns tooth axle 254, unscrewed Nose teeth nut 249, turn tooth 252 --- i.e. axle bed 253 rotates, and causes to rotate through last item 248 thereon.Adjust The nasion portion of the near normal patient of last item 248 is saved, screws nose teeth nut 249, base tooth 250 and turns tooth 252 and is intermeshed, is completed The angle locking of axle bed 253.2. the locking of last item 248：The tight silk 245 of last item is unscrewed, adjusts the height of last item 248, nose is pressed 247 Hes Nasion portion is bonded to each other, and is screwed the tight silk 245 of last item, is realized locking.

8th step：Porus acusticus externus is fixed

1. enters lock.Expanding petal 10 on cam-type lock pillar 263 smoothly inserts the corresponding outside of mortise and tenon type lock assembly 302 Expansion hole 152 in, anti-rotation lack 160 and stop pin 148 it is corresponding, until column base 167 lower floor's wall and plug housing 153 (or Head bottom plate 147) surface wall fitting.2. lockings.After cam-type lock pillar 263 is bonded with head bottom plate 147, Quick Release is down pulled Handle 158, because phase mutual friction produces static make a concerted effort.Cam-type lock pillar 263 will tightly be bonded locking with head bottom plate 147. 3. adjusts external ear fixing axle.Teeth nut 177 is first unscrewed, ear sagittal axis seat 174 rotates；Then the tight silk 184 of ear sagittal axis, ear arrow are unscrewed Axle 173 slides, and mobile regulation causes the upright projection of earplug 189 in (being aligned) porus acusticus externus, to screw ear teeth nut 177 and ear arrow The tight silk 184 of axle.The tight silk 191 of ear crownshaft is finally unscrewed, in ear crownshaft set 187 slidably, mobile regulation causes ear crownshaft 188 Earplug 189 contacts left and right porus acusticus externus, screws the tight silk 191 of ear crownshaft, completes the fixation of porus acusticus externus.Embodiment 3 is practical new using this The comparison of type and original (partially medium-sized) mode

Comparative result is shown in Table 1.

Table 1

	Eccentric type	Positive Chinese style
			Fixing point position	Center is to the right	Center
Regulative mode	Jack gear engages	Outstanding braces
			The scope of application	It is applicable vertical irradiation	It is applicable non-perpendicular irradiation
Blocking radiation	340 degree of stops	0 degree of stop
			Repeatability	It is good	It is good
Regulation limitation	Limit movement	Moving in stepless way
			Mechanical stability	Joint is few, simply	Joint is more, complicated
Machine error	Substantially overcome	In the presence of
			Adjust dead angle	In the presence of	Nothing
Security	It is high	It is high
			Simple operation	It is convenient	It is convenient
Stress is scientific	Gear engages, reliable and stable	Guide rail slides, step-less adjustment

Embodiment 4 uses this utility model fixed mount and the comparison of original mode

Comparative result is shown in Table 2.

Table 2

Claims (8)

1. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board fixed mount, it is characterised in that by solid Determine bottom plate, head bone eccentric sliding ball fixed mount, negative pressure pillow, head film and the part of porus acusticus externus fixator five composition,

Wherein fixed bottom plate is by column type locking structure (109), headrest groove (298), position-limit foot hole (297), shoulder bottom plate (290), bottom plate positioning hole (299), bottom plate combined positioning hole (301), body groove (304), body bottom plate (305), crotch limiter (309), bottom plate slope (300), upper limbs limiter (296), expansion hole (152) and head bottom plate (147) composition, agent structure one Head bottom plate (147), rectangle structure shoulder bottom plate (290) and body bottom plate (305) three of block isosceles trapezoidal structure are formed, rectangle Headrest groove (298) be located at the middle position on head bottom plate (147) surface and keep lower edge consistent with it, headrest groove (298) The long edge in both sides is respectively connected with 3 tool column type locking structures (109), the parallel phase in 3 tool column type locking structure (109) left and right of homonymy It is connected as a single entity, forms the fixation cell wall (19) and cylinder briquetting (58) of strip, homonymy 3 has the outer of column type locking structure (109) Respectively there are circular depressed structure expansion hole (152), headrest groove (298) side short side connection on head bottom plate (147) surface of side There are 2 tool column type locking structures (109) and be connected, opposite side short side dissociates, i.e.,：The fixation cell wall (19) of both sides long side and The fixation cell wall (19) of side short side forms the headrest groove (298) of " C " shape, wherein head bottom plate (147) non-center in upper edge surface Position circle concave shape into expansion hole (152), headrest groove (298) depression in the surface formed conical structure three position-limit foots Hole (297), positioned at the center of headrest groove (298), triangle disposition arrangement, shoulder bottom plate (290) connection and the head bottom of quadrangle is presented The edge of plate (147), 2 tool column type locking structures (109) are each provided with its two short edge placement, homonymy is connected two-by-two, I.e. both fixation cell walls (19) are connected as a single entity, and 2 tool column type locking structure (109) outer centers of homonymy are each provided with one Expand hole (152), shoulder bottom plate (290) surface is respectively equipped with bottom plate combined positioning hole (299) and bottom plate close to fixed cell wall (19) Positioning hole (301), body bottom plate (305) one end are connected with shoulder bottom plate (290) and keep edge consistent, and the other end connects and bottom plate slope (300), wherein body bottom plate (305) middle position concave shape adult groove (304), the centre position at the edge of body groove (304) two are distinguished Be provided with a upper limbs limiter (296), crotch limiter (309) is arranged at the lower end of body groove (304), and with body bottom plate (305) lower short side edge flushes；

Wherein the eccentric sliding ball fixed mount (310) of head bone by head bottom plate (147), maxilla support component (229), sting device and slide ball group Part (230), the three right branch of pin fornix (256), the three left branch of pin fornix (257), the preceding hole of jaw base tooth (259), nasion fixator (260), (262) and cam-type lock pillar (263) composition are propped up before the preceding hole of nose base tooth (261), three pin fornixs, overall structure is in the branch stood like the legs of a tripod Support body structure, three cam-type lock pillars (263) they are three fulcrums, in " product " font structure, two of " product " word structural base position It is connected between cam-type lock pillar (263) with three cambered pin dome shapes, connection cam in (262) one end is propped up before three pin fornixs Formula lock pillar (263), the other end be connected on three pin dome shapes between two cam-type lock pillars (263) at bottom position and by he It is divided into the three left branch of pin fornix (257) and the three right branch of pin dome shape (256), wherein the three left branch of pin fornix (257) are compared with three pin fornixs The right branch of structure (256) is short, i.e. (262) are propped up before three pin fornixs and are not overlapped with human body head median sagittal plane, in eccentric shape, three pin vaults (262) middle part level is propped up before gallery through having maxilla support component (229) and the preceding hole of jaw base tooth (259), both have a distance, Sting device cunning ball component (230) and be movably connected on maxilla support component (229), nasion fixator (260) and the preceding hole of nose base tooth (261) horizontal through branch (262) middle and upper part before three pin fornixs, both also have a distance；

Wherein negative pressure pillow locks head frame assembly by shearing（402）With negative pressure headrest assemblies（401）Two parts are formed, wherein shearing lock Head frame assembly（402）By shoulder bottom plate (141), position-limit foot hole (142), headrest groove (298), shoulder groove (144), shearing lock set (145) formed with head bottom plate (147), be the substrate frame of head positioning, by trapezoidal head bottom plate (147) and the shoulder bottom being square Plate (141), which is connected, to be formed, and head bottom plate (147) concavity forms headrest groove (298), and its surface caves inward to form three finished products The hole of font arrangement, lower parallel are arranged with two position-limit foot holes (142), in the 3rd hole and the ladder of head bottom plate (147) The line at angle is provided with shearing lock set (145) in shape, wherein shearing lock set (145) is cut by lockhole component (101), upper power (104), cut shaft assembly (105), cut seat (108), exert oneself to cut (110), lower key bar (111), cone stop (112), key conical ring (113), Key cone (114), cone chamber (115), upper key bar (116), spring base (117), button spring (118) and button (131) are formed, shearing Lock set (145) is to be embedded in component in a bottom plate (147), wherein cutting seat (108) and head bottom plate (147) is integrated, is cut The agent structure of power lock set (145) is scissor-shaped, cuts (104) by the upper power in " C " font and exerts oneself to cut in yi word pattern (110) around shaft assembly (105) composition is cut, lockhole component (101) is located therein one end, and the other end cuts (104) end by upper power The upper key bar (116) that sends and the lower key bar (111) sent by exerting oneself to cut (110) end form, and two bars are horizontal and phase Key cone (114) is cut in, cone shape is presented in key cone (114), and in cutting in the key conical ring (113) on seat (108), cone stops for traveling (112) positioned at the top of key cone (114), it is connected with button spring (118) and in the spring base (117) of " 7 " font, button (131) expose with key cone (114) and cut seat（108）One side connection, wherein lockhole component (101) cuts (104) by upper power, exerts oneself to cut (110), lower locking bar (119), left rod cavity (120), lock hole (121), upper lock rod (122), right rod cavity (123) and cavity wall (137) Composition, it is the direct mechanism of fastening and locking, lock hole (121) one end is closed, and the other end passes through and cuts seat (108) or head bottom plate 147, It is opened on headrest groove（298）, lock hole (121) two side lacks as and is recessed right rod cavity (123) and left rod cavity (120), by upper Power cuts the upper lock rod (122) that (104) end sends and by exerting oneself to cut the bar of lower locking bar (119) two that (110) end sends in level State is respectively accommodated in right rod cavity (123) and left rod cavity (120), upper lock rod (122) and lower locking bar in the presence of elastic force (119) mutually draw close, terminate in the cavity wall (137) of both sides rod cavity, (104) are cut by upper power, exert oneself to cut wherein cutting shaft assembly (105) (110), lower bullet branch (124), returning spring (125), cut axle (126), cut bearing (127), upper bullet branch (128), upper shell hole (129) Formed with lower bullet branch groove (130), to shear lock set（145）Support skeleton structure, cut seat (108) and send and cut axle (126), on Power cuts (104) and exerts oneself to cut that (110) are mutually overlapping through bearing (127) is cut, and returning spring (125) set, which is around in, cuts axle (126) Top and send bullet branch (128) and lower bullet branch (124) Liang Ge branches, the wedging of upper bullet branch (128) is cut on (104) positioned at upper power Upper shell hole (129), lower bullet branch (124) is caught in and exerts oneself to cut positioned at exerting oneself to cut the lower bullet branch groove (130) in (110) and act on (110)；Wherein negative pressure headrest assemblies（401）By headrest limit assembly (138), particulate bag (139) and vacuum valve (140) group Into, be head sizing cavity plate component, particulate bag (139) is that agent structure be in rectangular shape, bottom be inlaid with rest the head on it is spacing Component (138), side wall corner opening have vacuum valve（140）, wherein headrest limit assembly (138) is by billiards (500), gentle slope portion (132) stop (133), cone body (134), gradually headrest seat (135), tight line (136) and position-limit foot hole (146) composition, seat of resting the head on, are bored (135) the cone body (134) in circular cone structure is sent on, the cone of circular cone shape is up sequentially connected from cone body (134) substrate Stop (133), gentle slope portion (132) and hemispheric billiards (500), gradually tight line (136) is wherein covered with gentle slope portion (132)；

Wherein head film by shoulder film (1), shoulder bar (2), the film fourth of the twelve Earthly Branches (3), bar Positioning bean (4), bar handle (5), noodles (6), top bar (7), Teleblem gap (9), cervacoria gap (12), mouth and nose lack (13), ear scarce (14), cervacoria (18), facial mask (34) and teleblem (35) and formed, This film agent structure is sequentially connected structure by (1) four piece of teleblem (35), facial mask (34), cervacoria (18) and shoulder film laminar film head and the tail Into teleblem (35) is in isosceles trapezoid, and two waist edge are free to form teleblem gap (9), and top edge connects top bar (7), joins marginal center (5) are shaken hands provided with bar, one is respectively distributed with through the borehole structure film fourth of the twelve Earthly Branches (3) of top bar (7), bar positioning close to top bar (7) both ends Surface of the beans (4) in the middle part of top bar (7), its lower edge connect with facial mask (34), and facial mask (34) is in quadrangle, and centre is set (13) are lacked in respect of oval mouth and nose, its both sides middle part is designed with ear and lacks (14), and two noodles (6) are located at facial mask respectively (34) left and right edges, it joins marginal center and is provided with bar handle (5), and three film fourths of the twelve Earthly Branches (3) are equally spaced and run through noodles (6), surface is equidistantly provided with bar Positioning bean (4) between it, and the lower edge of facial mask (34) is connected to cervacoria (18), cervacoria (18) in etc. Waist is trapezoidal, and two waist edge are free to form cervacoria gap (12), and its lower edge is connected with shoulder film (1), and shoulder film (1) is in quadrangle, and it is left Right both sides are respectively connected with a shoulder bar (2), and handing-over marginal center is respectively provided with a bar handle (5), close to each point of shoulder bar (2) both ends It is furnished with the borehole structure film fourth of the twelve Earthly Branches (3) for running through film bar, surface of the bar Positioning bean (4) in the middle part of top bar (7), the trip of its lower edge From；

Wherein porus acusticus externus fixator is made up of head bottom plate (147), cam-type lock pillar (263) and porus acusticus externus contact assembly (170), outside Earhole contact assembly (170) is connected composition by self structure with wherein cam-type lock pillar (263), and two pieces is distributed in a bottom plate altogether (147) in the projection at porus acusticus externus position.

2. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the column type locking structure (109) in wherein fixed bottom plate is by fixing cell wall (19), fixing tenon (20), solid Determine bottom plate (25), tenon line (27), compress line (57), cylinder briquetting (58), connecting pole (59), cylinder axis (60), cylindrical base (61), cylinder spanner (62) and cylinder are left blank (63) composition, fixed cell wall (19) for a upper-thin-lower-thick sphenoid perpendicular to solid Determine an edge of bottom plate (25), be connected with cylindrical base (61) in the middle part of the other edge of fixed bottom plate (25), one end dissociative and Through there is a cylinder axis (60), the both ends of axle are respectively connected with the cylinder briquetting (58) of activity for centre, between two cylinder briquettings (58) By connecting pole (59) with the cylinder spanner (62) of outer rim is static is connected, centre is left cylinder and left blank (63), and corresponding is Fixation tenon (20) on fixed cell wall (19), there are multi-turn tenon line (27), the outer of cylinder briquetting (58) and fixed cell wall thereon (19) mutually it is designed with close to place and compresses line (57).

3. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the upper limbs limiter (296) in wherein fixed bottom plate enters component by arbor (36), handle (37), taenidium (38), thumb wheel component (39), pointer (64), scale (65), master calibration block (88) and secondary calibration block (95) are formed, and agent structure is Taenidium enters component (38), and the master calibration block (88) of two block length cube shapes is parallel with secondary calibration block (95) to be embedded in both sides, its The boundary position that middle master calibration block (88) enters component (38) with taenidium is designed with scale (65), and arbor (36) enters group with taenidium A certain part in part (38) is connected, outer by handle (37), and it is vertical with scale (65) that pointer (64) is located at root part of handle, thumb wheel Component is connected to one end that taenidium enters component (38), and wherein thumb wheel component (39) is by tooth case lid (66), thumb wheel mouth (67), pair Braces plate (68), thumb wheel (69), side plate (70), main braces (71), power teeth (72), form friction pattern (73), line shaft (74), conversion Axle (75), conversion gear (76), helical axis (77), helical tooth (78), active bearings (79) and pivot pin (80) are formed, the structure bit In one end of limiter substrate, main body is that secondary braces plate (68), main braces (71), tooth case lid (66) and two pieces of side plates (70) are formed Chamber structure, main braces (71) central design has an active bearings (79), and interior traveling has helical axis (77), and helical tooth (78) relies on Pivot pin (80) on helical axis (77) is fixed and rotated together with helical axis (77), the line shaft (74) sent on main braces (71) With transaxle (75), it is connected with secondary braces plate (68), is wound with thumb wheel (69), power teeth (72) and dress gear changing (76) thereon, its Middle thumb wheel (69) and power teeth (72) rely on pivot pin (80) on line shaft (74) and fix and rotate, thumb wheel (69) Wheel edge is designed with form friction pattern (73), and from thumb wheel mouth (67) partial denudation on tooth case lid (66) in outer surface, wherein spiral shell Rotation silk enters component (38) by arbor (36), main braces (71), helical axis (77), active bearings (79), reel assembly (81), last volume Cover (82), Shang Gaigou (83), last volume ring (84), upper volume ring (86), upper roll-top (87), master calibration block (88), seat guide rail (89), bottom Frid (90), handle seat (91), seat convex (92), seat nut (93), taenidium (94), secondary calibration block (95), silk enter groove (96), driven Bearing (99) and follower plate (100) are formed, and its agent structure is secondary calibration block (95), master calibration block (88) and bottom cut board (90) structure Into silk enter groove (96), two follower plates (100) and main braces (71) enter the both ends of groove (96), two seat guide rails positioned at silk respectively (89) enter positioned at silk among the two side of groove (96), helical axis (77) by the active bearings (79) on main braces (71) and Driven bearing (99) on follower plate (100) enters groove (96) through whole silk, is covered with taenidium (94), handle with helical axis (77) For seat (91) by seat nut (93) through helical axis (77), its both sides is provided with that seat is convex (92), and traveling is in seat guide rail (89), handle Axle (36) is located at handle seat (91) center upper portion position, and upper roll-top (87) and lower roll-top (82) difference traveling are in positioned at both sides side wall The Shang Gaigou (83) and lower cover ditch (97) of upper limb, and respectively by upper volume ring (86) collar overlapping with last volume ring (84) in arbor (36) on, while the top cover that silk enters groove (96) is constituted, upper roll-top (87) and lower roll-top (82) start from main braces (71) and driven Reel assembly (81) on plate (100), wherein reel assembly (81) is by lower roll-top (82) or upper roll-top (87）, scroll rack (85), Backrush pin (98), backrush spring (399) and backrush axle (400) composition, one formula of structure two, respectively positioned at main braces (71) and On follower plate (100), agent structure is two relative scroll rack (850) set up, and backrush axle (400) is lain across in the middle part of both, returned Coil spring (399) is surrounded on the both ends of backrush axle (400), lower roll-top (82) or upper roll-top (87 by backrush pin (98)）Pass through Lower cover ditch (97) or upper lid ditch (83）It is wound in backrush axle (400), structure and the upper limbs limiter of crotch limiter (309) (296) it is identical.

4. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the maxilla support component (229) wherein in the eccentric sliding ball fixed mount (310) of head bone is the fixed upper jaw Bone stings the direct part of device, and it passes through the jaw tooth axle sleeve on supporter (225)（227）Rotate coupled, maxilla support group Part (229) is by the tight silk of jaw transverse axis (198), the tight silk hole (199) of jaw transverse axis, jaw transverse axis seat (203), jaw teeth nut (204), jaw tooth axle (205), jaw tooth scale (206), jaw turn tooth (207), supporter (225), jaw base tooth (226), jaw tooth axle sleeve (227) and triangle card Groove (231) forms, and jaw tooth axle sleeve (227) passes through supporter (225) in hollow tubular structure, and jaw base tooth (226) is located at jaw tooth One end of axle sleeve (227) is simultaneously fixedly connected with supporter (225), and jaw turns tooth (207) and is intermeshed and sends with jaw base tooth (226) Jaw tooth axle (205), (205) traveling of jaw tooth axle is in jaw tooth axle sleeve (227), and jaw tooth axle (205) is got on the bus and has screw thread, with jaw teeth nut (204) mutually fit, jaw tooth scale (206) is covered with the side for turning tooth (207) and jaw base tooth (226) in jaw, jaw transverse axis seat (203) one end Turn tooth (207) with jaw to fix, another end dissociative is simultaneously provided with the triangle neck (231) of square breach formation, the tight silk hole of jaw transverse axis (199) it is located at the free end surfaces of jaw transverse axis seat (203), and runs through in triangle neck (231), the tight silk hole (199) of jaw transverse axis Interior car has screw thread, is mutually fitted with the tight silk of jaw transverse axis (198).

5. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the device of stinging wherein in the eccentric sliding ball fixed mount (310) of head bone slides ball component (230) as fixed maxilla Direct part, be connected by triangular prism (233) with the triangle neck (231) in maxilla support component (229), by Sheng glue basket (209), excessive glue hole (210), sting device bar (211), sting edge (213), biting teeth position (214), solid tongue position (215), spatula (216), Glue basket bottom plate (219), contain glue basket back plate (220), sting device (228), three angle index (232), triangular prism (233), post convex (234), Pressure tongue block (235), upper tooth sting edge (236), slide ball (237), ball chute mouth (238), sting bar mouth (239), ball groove (240), upper tooth Sting position (241) and halfround bar slice (242) is formed, for the component that dissociates, triangular prism (233) is that isosceles right angle is in triangle column structure, tool There are two right-angled side faces chord flank side surfaces, one end of triangular prism (233) is vertical with the side for containing glue basket (209) by string flank side surface It is connected, another end dissociative, three angle index (232) are located at triangular prism (233) string flank side surface edge, and triangular prism (233) traveling is in three In angle neck (231), side of two right-angled side faces respectively with triangle neck (231) fits, and the tight silk of jaw transverse axis (198) will be applied Power is cube structure in the string flank side surface of triangular prism (233), containing glue basket (209), and top surface covers without plate, there is four sides, Wherein three sides are respectively provided with 4 excessive glue holes (210), and the 4th side is to contain glue basket back plate (220), glue basket bottom plate (219) structure As containing the bottom plate of glue basket (209), glue basket bottom plate (219) point inside and outside two sides, the ball chute mouth (238) of opened round among inner face, Depression forms semicircular ball groove (240) to ball chute mouth (238) downwards, and ball groove (240) bottom opened round mouth runs through glue basket bottom plate (219), the opening of the bottom of ball groove 240 forms and stings the outside that bar mouth (239) is located at glue basket bottom plate (219), the cunning ball of spherical structure (237) in ball chute mouth (238), surface both is tangent, stings device bar (211) and runs through and be fixed on sliding ball (237), stings device Bar (211) upper part is positioned at containing in glue basket (209), and device (228) is stung from stinging bar mouth (239) and pass connection in bottom, and stinging device (228) is The part of Buccodental occlusion, the halfround bar slice (242) by semicircular in shape and the pressure tongue block (235) in Elliptic Cylinder form, wherein The side of halfround bar slice (242) circular arc side, which is formed, stings edge (213), and diameter side is boundless free, post convex (234) and halfround bar slice（242）Together The heart is not isometrical, and the horizontal plane of post convex (234) is higher than halfround bar slice（242）Plane, flush, stung on the inside of edge (213) with stinging edge (213) Both face and convex (234) side of post surround the biting teeth position (214) of semi-circular shape structure, and pressure tongue block (235) is located at halfround bar slice (242) The back side middle part, lower edges are respectively the partial arc of halfround bar slice (242) and the semi arch of post convex (234), the left and right sides While dissociating, wherein the upper limb of pressure tongue block (235), which has side to form upper tooth, stings edge (236), the horizontal plane of post convex (234) is higher than pressure tongue The plane of block (235) is simultaneously stung edge (236) with upper tooth and flushed, and the side of post convex (234) and lower tooth sting both medial surfaces of edge (236) Between surround the upper tooth of semi-circular shape structure and sting position (241).

6. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the nasion fixator (260) wherein in the eccentric sliding ball fixed mount (310) of head bone is compressing nasion tissue Direct part, by not-go-end (172), supporter (225), last item scale (243), last item set (244), the tight silk of last item (245), pressure The tight silk hole (246) of axle, nose pressure (247), last item (248), nose teeth nut (249), base tooth (250), nose tooth scale (251), turn tooth (252), axle bed (253), turn tooth axle (254) and base tooth axle sleeve (255) composition, base tooth axle sleeve (255) through supporter (225) simultaneously In hollow tubular structure, base tooth (250) is located at one end of base tooth axle sleeve (255) and is connected as a single entity with supporter (225) fixation, Turn tooth (252) to be intermeshed with base tooth (250), and send and turn (254) traveling of tooth axle in base tooth axle sleeve (255), turn tooth axle (254) getting on the bus has screw thread, is mutually screwed with nose teeth nut (249), and nose tooth scale (251) is covered with base tooth (250) and turns tooth (252) Side, axle bed (253) one end and to turn tooth (252) fixed, another end dissociative and in vertical direction through there is last item set (244), Hollow last item set (244) interior traveling has last item (248) slidably, and last item scale (243) is distributed in the table of last item (248) Face, float in strip is convex on the whole major axis of last item (248), the tight silk hole (246) of last item is located at the free-end table of axle bed (253) Face, and run through in last item set (244), the interior car of the tight silk hole (246) of last item has screw thread, is rotary with the tight silk of last item (245), last item outside (248) one end connection not-go-end (172), other end connection nose pressure (247), nose pressure (247) is in inverted " v ".

7. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that the cam-type lock pillar (263) wherein in the eccentric sliding ball fixed mount (310) of head bone is three pin dome shapes Fulcrum, in " product " font structure, by stop pin (148), cam pack (149), auxiliary post (150), swell latches component (151), expand hole (152), plug housing (153), carry the base of a fruit (154), latch positions recessed (155), standard seat (156) and Quick Release mouth （157）Form, main body is the auxiliary post (150) of a column structure, and the base of a fruit (154) that carries of truncated cone shape passes through standard seat (156) phase Company forms the top of auxiliary post (150), and lower end is connected with swell latches component (151), and stage casing side wall oblong openings form Quick Release Mouth (157), matching used with main body is plug housing (153), is designed with expansion hole (152) thereon, stop pin (148) is positioned at swollen Swollen hole (152) bead, expansion hole (152) madial wall lower end be designed with latch position recessed (155), wherein cam pack (149) by Latch post (8), auxiliary post (150), Quick Release mouth (157), quick-release handle (158), cam (159), camshaft bearing (161), camshaft (162), cam chair (163), latch spring (164) and spring base (165) are formed, and design is hollow in auxiliary post (150), above and below inwall Camshaft (162) and cyclic structure spring base (165) are sent respectively, and latch post (8) is through spring base (165) and traveling is in hollow Auxiliary post (150) in, the expanded spheres (15) being connected in swell latches component (151), other end connection cam chair (163), and with cam (159) sliding contact, latch spring (164) it is locked between cam chair (163) and spring base (165), Camshaft bearing (161) freely rotates through cam (159) around camshaft (162), and cam (159) sends the fast of sheet to outside upper Tear handle (158) open, stretch out in Quick Release mouth (157), by the rotation of quick-release handle (158) with moving cam (159), wherein expansion is inserted Pin assemblies (151) are by latch post (8), expanding petal (10), latch convex (11), expanded spheres (15), valve ditch (16), ball line (17), auxiliary post (150), anti-rotation lack (160), column base (167) and valve edge (168) and formed, and column base (167) is annularly enclosed on auxiliary post (150) on, anti-rotation is recessed in the cyclic structure of column base (167) and lacks (160), the expansion sent by latch post (8) end Ball (15) is contained in the cavity that the expanding petal (10) sent by auxiliary post (150) end surrounds, the distribution of expanding petal (10) madial wall There is valve ditch (16), lateral wall hypomere is designed with latch convex (11), and lower last edge is designed to the valve edge (168) of wedge, expanded spheres (15) ball line (17) is designed with, is mutually fitted with valve ditch (16).

8. a kind of semicircle ear mouth and nose centering type radiotherapy incidence positioning negative pressure pillow flat board according to claim 1 is fixed Frame, it is characterised in that porus acusticus externus contact assembly (170) wherein in porus acusticus externus fixator by not-go-end (172), ear sagittal axis (173), Ear sagittal axis seat (174), ear turn tooth (175), ear tooth scale (176), ear teeth nut (177), ear base tooth (178), ear toothholder (179) chamber (180), lock pillar anchor ear (181), ear sagittal axis set (182), the tight silk hole (183) of ear sagittal axis, the tight silk of ear sagittal axis, are bound round (184), ear sagittal axis scale (185), ear crownshaft seat (186), ear crownshaft set (187), ear crownshaft (188), earplug (189), ear hat The tight silk hole (190) of axle, the tight silk of ear crownshaft (191), ear crownshaft scale (192), ear tooth axle sleeve (193) and ear tooth axle (194) are formed, In same plane form of zigzag, the lock pillar anchor ear (181) of ring-type sends ear toothholder (179), and ear tooth axle sleeve (193) runs through ear tooth Seat (179) and be in hollow tubular structure, ear base tooth (178) is located at one end of ear tooth axle sleeve (193) and consolidated with ear toothholder (179) Fixed, ear turns tooth (175) and is intermeshed with ear base tooth (178), and concurrent produce agaric tooth axle (194) traveling is in ear tooth axle sleeve (193), ear Tooth axle (194) is got on the bus and has screw thread, is mutually screwed with ear teeth nut (177), and ear tooth scale (176) is covered with ear base tooth (178) and ear Turn the side of tooth (175), ear sagittal axis seat (174) one end turns tooth (175) with ear and fixed, and another end dissociative simultaneously runs through in the horizontal direction There is ear sagittal axis set (182), hollow ear sagittal axis set (182) interior traveling has ear sagittal axis (173) slidably, ear sagittal axis scale (185) surface of ear sagittal axis (173) is distributed in, is floated in strip is convex on the whole major axis of ear sagittal axis (173), the tight silk hole of ear sagittal axis (183) it is located at the free end surfaces of ear sagittal axis seat (174), and runs through in ear sagittal axis set (182), car has screw thread, outward turning in hole There is the tight silk of ear sagittal axis (184), ear sagittal axis (173) one end connection not-go-end (172), other end engaging lug crownshaft seat (186) is simultaneously fixed, Ear crownshaft set (187) level runs through ear crownshaft seat (186), and vertical with ear sagittal axis (173), in hollow ear crownshaft set (187) Traveling has ear crownshaft (188) slidably, and ear crownshaft scale (192) is distributed in the surface of ear crownshaft (188), convex in strip Float on the whole major axis of ear crownshaft (188), the tight silk hole (190) of ear crownshaft is located at the free end surfaces of ear crownshaft seat (186), and passes through Pass through in ear crownshaft set (187), car has screw thread in hole, is rotary with the tight silk of ear crownshaft (191) outside, and the connection of ear crownshaft (188) one end stops Hold (172), other end connection earplug (189).