CN206183817U - A prevent touching device for head radiation therapy equipment - Google Patents
A prevent touching device for head radiation therapy equipment Download PDFInfo
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- CN206183817U CN206183817U CN201620809501.9U CN201620809501U CN206183817U CN 206183817 U CN206183817 U CN 206183817U CN 201620809501 U CN201620809501 U CN 201620809501U CN 206183817 U CN206183817 U CN 206183817U
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- floating cover
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Abstract
The utility model belongs to radiation source replacer tool field, concretely relates to a prevent touching device for head radiation therapy equipment. This device still includes profile appearance and rotatory accurate stretched body's the anastomotic unsteady cover of cover chamber shape including drive shaft and the accurate stretched body of rotation, this device, and the unsteady envelope of hood is established in rotatory accurate stretched body and is had between the two and to supply the unsteady fit clearance that covers radial activity, set up mechanical type high accuracy micro -gap switch in the fit clearance department of cover with the accurate stretched body of rotation of floating, mechanical type high accuracy micro -gap switch is more than two and encircles rotatory accurate stretched body's the intermural equipartition that separates in cover chamber, and the directional cover outer wall direction of floating is held to mechanical type high accuracy micro -gap switch's switch. The utility model discloses rotate the unsteady protection purpose of accurate stretched body self and even the relative patient's head of rotatory accurate stretched body in the therapeutical preparatory stage until treating the reliable realization of in -process homoenergetic, finally ensure the security and the reliability of its working process.
Description
Technical field
The utility model belongs to radioactive source dismounting instrument field, and in particular to a kind of for the anti-of head radiotherapy equipment
Touch device.
Background technology
Malignant tumour is one of China's resident's major causes of death.The current mankind do not have specific treatment side also to malignant tumour
Method, radiotherapy, chemotherapy and operative treatment are the three big means for treating tumour at this stage.About 70% cancer is suffered from
Person is needed to use radiotherapy during treating cancer, and the cancer that there are about 40% can be effected a radical cure with radiotherapy.Radiotherapy equipment
It is generally divided into head tumor radiotherapy apparatus and the class of extracranial tumors radiotherapy apparatus two.Existing head tumor radiotherapy apparatus are mostly used
The rotation of ball-type chamber or cone cylinder die cavity collimates body as radiation treatment chamber.During treatment, patient lies on the back in three-dimensional therapeutic bed body
Above and patient's head is fixed by headstock positioner, three-dimensional therapeutic bed is instructed according to the treatment plan of setting and electrical control
Patient's (focus) is delivered into radiation focus point center, to perform the fixed point irradiation treatment to intracranial lesion tissue.Generally once controlling
During treatment, changing different positions by the motion of three-dimensional therapeutic bed carries out the irradiation treatment of Mutiple Targets, i.e. self-oscillate position,
The positioning precision of target spot can be so improved, treatment non-cutting time is reduced.And when patient's intracranial lesion is in more inclined position,
Calculating when such as planning treatment space is made a fault, or error because of kinetic control system etc. so that three-dimensional therapeutic bed
Actual motion distance will cause patients head's positioner to touch the treatment of rotation collimation body by mistake beyond the space in radiation treatment chamber
In cavity wall, serious consequence is caused.
The content of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure and anti-collision for head radiotherapy equipment of practicality
Device is touched, it is in the treatment preparatory stage until can reliably realize rotation collimation body itself or even rotation collimation in therapeutic process
Purpose is protected in floating of the body phase to patients head.The utility model can when there is patients head and touching situation by mistake, can flexibly and
Online warning or protecting effect are targetedly provided depending on knock-on displacement amplitude size, the security of its course of work is finally ensured
And reliability.
To achieve the above object, the utility model employs following technical scheme：
It is a kind of to touch device for the anti-of head radiotherapy equipment, including drive shaft and coaxially arranged in drive shaft axle
Hood-like rotation collimation body at end, the cover back of the body of rotation collimation body constitutes the abutting end with drive shaft shaft end；It is characterized in that；This
Device also includes the contours profiles floating cover identical with the cover chamber shape of rotation collimation body, and the floating cover is set in rotation collimation
There is in vivo and between the two the fit clearance for being available for floating cover radially movable；At fit clearance of the floating cover with rotation collimation body
Mechanical high accuracy microswitch is set, and the mechanical high accuracy microswitch is two or more and revolves around it collimation body
Uniformly at intervals, the switch terminals of mechanical high accuracy microswitch point to floating cover outer wall direction to cover chamber cavity wall, the switch terminals with it is floating
The radial direction that radial direction spacing between dynamic cover outer wall constitutes floating cover with switch terminals actuating length sum allows operating range.
The coaxial cover chamber bottom surface to rotation collimation body is extended with connecting shaft at from the cover back of the body of floating cover, rotation collimation body
Cover chamber is accordingly coaxially disposed mating holes at bottom surface, and bearing fit is formed with spherical bearing between the connecting shaft and the mating holes；Float
Then circumferentially around the spring pin having uniformly at intervals for realizing the action of floating cover radial elastic of shape at the cover mouth outer wall of cover.
The present apparatus also includes the retainer ring being fixed in radiation frame, and the retainer ring collimates body and floats with above-mentioned rotation
It is coaxially disposed between dynamic cover, retainer ring internal diameter is more than the cover mouth external diameter of floating cover and coaxial cover for being set in floating cover mouthful is outer；Gu
Determine radial direction on ring through arrangement installation through-hole, be arranged with the adjusting screw of compression spring screw thread from outside to inside and be matched with installation
In through hole；Adjusting screw length is less than compression spring length, and compression spring one end is resisted against at the nut of adjusting screw, another
End is axially extending along adjusting screw and is resisted against on the spacer pin being coaxially disposed, and spacer pin is constituted between floating cover cover mouthful outer wall again
Face is against cooperation.
The beneficial effects of the utility model are：
1), by such scheme, the utility model is with the design structure of inner-outer sleeve, so as to have in the floating cover as inner sleeve
On the basis of the standby rotation collimation body relative to as overcoat produces radial floating to act, with reference to mechanical high accuracy microswitch,
Purpose is protected in the final floating for realizing rotation collimation body itself or even rotation collimation body phase to patients head.Additionally, this practicality is new
Type also uses radiation resistance, small contactor gap, quick acting, the Gao Ling that mechanical high accuracy microswitch itself has
The characteristics of sensitivity and minor motion stroke, it is placed between rotation collimation body and floating cover.So, using floating cover as shake-up
Plate, the switch terminals with mechanical high accuracy microswitch as induction end, with the high accuracy of mechanical high accuracy microswitch itself
Repeatability and long-life characteristics ensure the reliable and stable operation of whole floating equipment, needed for finally realizing the utility model
Head impact is protected and online alarming effect.
To sum up, the utility model is arranged in pairs or groups the combining structure of mechanical high accuracy microswitch by floating cover, can be combined existing
Some control softwares, using the high sensitivity of mechanical high accuracy microswitch, coordinate floating cover to rotate against the floating of collimation body
Dynamic performance, so as to treat the preparatory stage until in therapeutic process, you can reliable to realize that rotation collimates body itself or even rotation
Purpose is protected in floating of the collimation body phase to patients head.Can be when there is patients head and touching situation by mistake in the utility model, Neng Gouling
Live and targetedly performed depending on knock-on displacement amplitude size and such as alarm or be automatically stopped equipment warning or protection act online,
Finally to ensure the safety and reliability of its Patients During Radiotherapy.
2) the action construction of collimation body, cloth when actually used or at both fit clearances, are rotated against as floating cover
Resilient key or cushion etc. are put, only needs that floating fit function between the two can be realized.The utility model is preferably using floating
Cover the spherical assembling in bottom and cover setting Elastip pin structure at mouth, so that the present apparatus possesses the radial elastic of Elastip pin
The sphere of compression and floating cover bottom end spherical bearing is hinged two action forms；In other words, when now floating cover is touched, institute
What is produced should be that general orientation is that radial direction is hinged wobbling action.Why said structure is used, be to be when patients head touches
Generally all it is in bed translation motion is slid when bumping against floating cover；Now the impact of patients head's Relative Floating cover is inevitable not
It is the radial direction force of standard, and should is that certain intersection is presented with the axis of floating cover.The spherical axis at floating cover cover bottom
The dynamic structure of spherical hinge held so that floating cover is more sensitive to the force of patients head, high-precision with further elevating mechanism formula
Spend the responsiveness of microswitch.Once generation is hinged floating and floating degree reaches certain value, its cover body outer wall is floating cover
The switch terminals of the mechanical high accuracy microswitch of the cavity wall for being located at rotation collimation body can be touched, and then warning or equipment occurs certainly
It is dynamic to stop operation, to play the purpose of reliable protection patient and equipment automatically.
3), the engagement formation at floating cover cover mouthful, preferably using retainer ring as external assembly parts.It is assemblied in by retainer ring
After in radiation frame, then spacer ring radially wears installation through-hole around the anchor ring of retainer ring, to provide by adjusting screw, compression bullet
The spring pin that spring and spacer pin are constituted reliably realizes that floating cover is based on the radial floating of retainer ring to dispose matrix, finally
Function.
Brief description of the drawings
Fig. 1 is confined state sectional view of the present utility model；
Fig. 2 is the I parts partial enlarged drawing of Fig. 1；
Fig. 3 is the right view of structure shown in Fig. 1；
Fig. 4 is the I parts partial enlarged drawing of Fig. 3.
Each label is as follows with each component names corresponding relation of the present utility model in accompanying drawing：
10- drive shafts 20- rotation collimation body 30- floating cover 31- connecting shafts
The mechanical high accuracy microswitch 41- switch terminals of 40-
50- spherical bearing 60- retainer rings
71- adjusting screw 72- compression spring 73- spacer pins
Specific embodiment
For ease of understanding, following retouching is made to specific implementation structure of the present utility model and workflow here in connection with accompanying drawing
State：
Shown in specific implementation structure reference picture 1-4 of the present utility model, including drive shaft 10 and the rotation for constituting main body
Collimation body 20, the rotation collimation profile of body 20 is presented the hood-like or perhaps barrel-shaped structure shown in Fig. 1.The cover of rotation collimation body 20
At the back of the body, namely coaxially connected above-mentioned drive shaft 10 at the bottom surface of cover body outer wall, and be presented freely-supported beam-like with bearing unit can
Being fixed on for revolution is radiated in frame.By said structure, when radiological installation works, drive shaft 10 is driven to rotate with power source,
Can be rotated therewith collimation body 20 produce revolution action, so as to reach using rotation collimate the cover chamber of body 20 in radioactive source come
Realize irradiation treatment purpose.
Under the above constitution, it is coaxial in the cover chamber cavity wall of rotation collimation body 20 to be arranged with the floating of one layer of " float housing " structure
Dynamic cover 30.The profile of floating cover 30 is coincide with the cover chamber profile of rotation collimation body 20, is constructed with the cover body that plate-shaped is presented.Float
Sentence coaxial connecting shaft 31 and coordinate rotation accurate by spherical bearing 50 in the cover back of the body of cover 30, namely the bottom surface of the outer wall of floating cover 30
The cover bottom of stretched 20, so as to realize that floating cover 30 is based on the globular hinge shape structure of rotation collimation body 20.Meanwhile, in floating cover 30
Cover mouthful place, collimate body 20 or even radiation machine to ensure that floating cover 30 is rotated against circumferentially around the multiple spring pins for setting
The floating fit of frame.Spring pin includes adjusting screw 71, compression spring 72 and spacer pin 73, and radiation frame is fixed in arrange in pairs or groups
On retainer ring 60, so as to realize the radial elastic bracketing function of its cover mouth of Relative Floating cover 30.Spacer pin 73 is it is contemplated that use
Stage casing diameter as shown in Figure 2 is big and three sections of small multidiameter structures of two ends diameter, with the poroid installation through-hole of ladder of arranging in pairs or groups, from
And spacing spacer pin 73 is come by the radially movable of the export-oriented axis direction of retainer ring 60 of retainer ring 60 with seam cooperation.In floating cover 30
Rotate against collimation body 20 floating structure after the completion of, by rotation collimation body 20 cover chamber cavity wall inner circumferential be pasted with it is many
Individual mechanical high accuracy microswitch 40, and the switch terminals 41 of the microswitch are pointed at the outer wall of floating cover 30.Now, machinery
The actuating length of the switch terminals 41 of formula high accuracy microswitch 40 adds the radial direction spacing of the switch terminals 41 and the outer wall of floating cover 30,
The maximum float distance that as floating cover 30 is allowed.Mechanical high accuracy microswitch 40 can select such as Honeywell fine motion
Switch etc..
When the utility model is specifically used, during treatment, body is lain on the back and positioned on three-dimensional therapeutic bed and by the headstock by patient
Device fixes patient's head with three-dimensional therapeutic bed front end, and three-dimensional therapeutic bed is instructed according to the treatment plan of setting and electrical control
Focus is delivered into radiation focus point center, to perform the fixed point irradiation treatment to intracranial lesion tissue.Once the positioning of patients head
The headstock encounters floating cover 30, and patients head's impact is not strong, and then when causing the floating range of floating cover 30 little, also will not be right
Radiological installation produces excessive influence in itself, therefore can continue executing with radiotherapy step.And work as positioning head frame phase at patients head
Reach certain value to the impact of floating cover 30, and then cause that the floating cover 30 for being collided produces the general orientation to be because external force is acted on
Radial direction is hinged floating, and the radial floating amount is when exceeding the floating cover 30 specified and allowing domain of walker again, the outer wall of floating cover 30
Any group of switch terminals 41 of mechanical high accuracy microswitch 40 on circumference are touched, until the switch terminals 41 are depressed into trigger point.
Now, operator is pointed out in control system or triggering alarm, or directly control radiological installation is shut down, to ensure that patient's person is pacified
Entirely, and it is prevented effectively from the generation of malpractice.
Claims (3)
1. it is a kind of to touch device for the anti-of head radiotherapy equipment, including drive shaft (10) and coaxially arranged in drive shaft
(10) the hood-like rotation of axial end collimates body (20), the cover back of the body composition of rotation collimation body (20) and matching somebody with somebody for drive shaft (10) shaft end
Close end；It is characterized in that；The present apparatus also includes the contours profiles floating cover identical with the cover chamber shape of rotation collimation body (20)
(30), the floating cover (30) is set in rotation collimation body (20) and has between the two and is available for floating cover (30) radially movable
Fit clearance；Mechanical high accuracy microswitch is set at fit clearance of the floating cover (30) with rotation collimation body (20)
(40), the mechanical high accuracy microswitch (40) is for two or more and revolves around it the cover chamber cavity wall interval for collimating body (20)
Uniformly, the switch terminals (41) of mechanical high accuracy microswitch (40) point to floating cover (30) outer wall direction, the switch terminals (41)
The radial direction for constituting floating cover (30) with the radial direction spacing between floating cover (30) outer wall and switch terminals (41) actuating length sum permits
Perhaps operating range.
It is 2. according to claim 1 a kind of to touch device for the anti-of head radiotherapy equipment, it is characterised in that：By floating
The coaxial cover chamber bottom surface to rotation collimation body (20) is extended with connecting shaft (31), rotation collimation body at the cover back of the body of dynamic cover (30)
(20) mating holes is accordingly coaxially disposed at cover chamber bottom surface, is formed with spherical bearing (50) between the connecting shaft (31) and the mating holes
Bearing fit；At the cover mouth outer wall of floating cover (30) then circumferentially around shape having uniformly at intervals for realize floating cover (30) radially
The spring pin of knee springing.
It is 3. according to claim 2 a kind of to touch device for the anti-of head radiotherapy equipment, it is characterised in that：This dress
The retainer ring (60) for also including being fixed in radiation frame is put, the retainer ring (60) collimates body (20) and floats with above-mentioned rotation
It is coaxially disposed between dynamic cover (30), retainer ring (60) internal diameter is more than the cover mouthful external diameter of floating cover (30) and is coaxially set in floating cover
(30) cover mouthful is outer；In retainer ring (60) radial direction through arrangement installation through-hole, be arranged with the adjustment spiral shell of compression spring (72)
Nail (71) screw thread from outside to inside is matched with installation through-hole；Adjusting screw (71) length is less than compression spring (72) length, and
Compression spring (72) one end is resisted against at the nut of adjusting screw (71), the other end along adjusting screw (71) it is axially extending and against
On the spacer pin (73) being coaxially disposed, spacer pin (73) constitutes face against cooperation between floating cover (30) cover mouth outer wall again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809501.9U CN206183817U (en) | 2016-07-29 | 2016-07-29 | A prevent touching device for head radiation therapy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809501.9U CN206183817U (en) | 2016-07-29 | 2016-07-29 | A prevent touching device for head radiation therapy equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206183817U true CN206183817U (en) | 2017-05-24 |
Family
ID=58736650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620809501.9U Active CN206183817U (en) | 2016-07-29 | 2016-07-29 | A prevent touching device for head radiation therapy equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206183817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110521A (en) * | 2016-07-29 | 2016-11-16 | 武汉新奥沃医疗新技术有限公司 | A kind of touch device for the anti-of head radiotherapy equipment |
| CN107789741A (en) * | 2017-11-09 | 2018-03-13 | 深圳市奥沃医学新技术发展有限公司 | A kind of rack construction and radiotherapy equipment |
| WO2021051891A1 (en) * | 2019-09-20 | 2021-03-25 | 西安大医集团股份有限公司 | Anti-collision apparatus and radiotherapy device |
-
2016
- 2016-07-29 CN CN201620809501.9U patent/CN206183817U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110521A (en) * | 2016-07-29 | 2016-11-16 | 武汉新奥沃医疗新技术有限公司 | A kind of touch device for the anti-of head radiotherapy equipment |
| CN107789741A (en) * | 2017-11-09 | 2018-03-13 | 深圳市奥沃医学新技术发展有限公司 | A kind of rack construction and radiotherapy equipment |
| WO2021051891A1 (en) * | 2019-09-20 | 2021-03-25 | 西安大医集团股份有限公司 | Anti-collision apparatus and radiotherapy device |
| US11963804B2 (en) | 2019-09-20 | 2024-04-23 | Our United Corporation | Anti-collision apparatus and radiotherapy device |
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