CN107432991A - Radiotherapy equipment and its speculum travel mechanism - Google Patents
Radiotherapy equipment and its speculum travel mechanism Download PDFInfo
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- CN107432991A CN107432991A CN201610356722.XA CN201610356722A CN107432991A CN 107432991 A CN107432991 A CN 107432991A CN 201610356722 A CN201610356722 A CN 201610356722A CN 107432991 A CN107432991 A CN 107432991A
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- Prior art keywords
- speculum
- radiotherapy equipment
- guide section
- guide
- travel mechanism
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1077—Beam delivery systems
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Radiation-Therapy Devices (AREA)
- Endoscopes (AREA)
Abstract
The invention provides a kind of speculum travel mechanism of radiotherapy equipment, including guide groove and drive mechanism.Guide groove has the first guide section and the second guide section, and the speculum of the radiotherapy equipment fits along guide groove slip, and speculum when speculum when be located at first guide section is with being located at second guide section is into an obtuse angle.Drive mechanism connects the speculum, drives the speculum to be slided along the guide groove, when wherein the speculum is located at the first guide section on the beam path in the radiotherapy equipment, the speculum is contraction state when being located at second guide section.
Description
Technical field
The invention mainly relates to the speculum movement of radiotherapy equipment, more particularly to a kind of radiotherapy equipment
Mechanism.
Background technology
Fig. 1 is a kind for the treatment of header structure of known radiotherapy (hereinafter radiotherapy) equipment, reference chart
Shown in 1, the light that light source 12 is sent down by the projection of speculum 13, can simulate the X of radiographic source 11
The shape of ray or electron beam after beam limiting device, so may determine that beam by observing the shape of light field
Shape and help medical treatment.Here, speculum 13 is glass mirror, it can move in parallel, work as treatment
When pattern is X ray, speculum 13 can be at beam position (dotted line position in figure), because X ray
Penetration capacity it is very strong, speculum to X ray stop it is weaker；When Therapeutic mode is electronic pattern, reflection
Mirror 13 needs to remove from beam position, moves in parallel to side (solid line position in figure), because electronics
Penetration capacity is very weak, and speculum is stronger to electronic blocking.In order to avoid unnecessary ray is to patient's radiational injury
It is harmful, there are a large amount of shieldings inside treatment head.In this configuration, speculum 13 moves in parallel due to needing,
It and inner shield can only installation separated by a distance up and down, required space is larger, so as to cause patient's
Treatment space reduces (treatment space is often referred to head lower edge to isocentric distance).If it can reduce anti-
Penetrate the space of mirror occupancy, it becomes possible to increase the treatment space of patient, there is provided more comfortable treatment experience.
Therefore, prior art proposes a kind of film reflecting mirror, it uses organic film to be made.It is this
Speculum is very thin, generally only 0.1mm, either still all very weak to the blocking capability of electronics to X ray.
Mirror can be placed on when treatment below line, and without removing.Film reflecting mirror is fabricated to
This is higher, and is difficult to do smooth and reach equably reflection light.
The content of the invention
Put the technical problem to be solved in the present invention is to provide one kind and control equipment and its speculum travel mechanism, Ke Yitong
Crossing reasonably mobile mirror reduces the space-consuming of speculum.
In order to solve the above technical problems, the invention provides a kind of speculum travel mechanism of radiotherapy equipment,
Including guide groove and drive mechanism.Guide groove has the first guide section and the second guide section, and the radiotherapy is set
Standby speculum fits along guide groove slip, and speculum when be located at first guide section with positioned at this
Speculum during the second guide section is into an obtuse angle.Drive mechanism connects the speculum, drive the speculum along
The guide groove slides, positioned at the line road of the radiotherapy equipment when wherein the speculum is located at the first guide section
On footpath, the speculum is contraction state when being located at second guide section.
In one embodiment of this invention, first guide section and second guide section are respectively straightway, and
First guide section and second guide section are into an obtuse angle.
In one embodiment of this invention, the adjacent of first guide section and second guide section has curve mistake
Cross section.
In one embodiment of this invention, first guide section and second guide section are respectively curved section, and
The adjacent of first guide section and second guide section seamlessly transits.
In one embodiment of this invention, the speculum travel mechanism also includes picture frame, to carry the reflection
Mirror.
In one embodiment of this invention, the guide groove is a pair, respectively positioned at the both sides of the picture frame.
In one embodiment of this invention, the picture frame sidepiece has guide, and the guide is placed in the guide groove
It is interior and suitable for being slided in the guide groove.
In one embodiment of this invention, the drive mechanism includes motor, is turned back to Linear transmission component and leads
Draw block, this is turned back to Linear transmission component and connects the motor, and the guiding piece connects this and is turned back to Linear transmission group
Part.
In one embodiment of this invention, the drive mechanism also includes guide rail and sliding block, and this is turned back to straight-line transmitting
Dynamic component connects the guiding piece by the sliding block, and the sliding block is on the guide rail, and the guide rail parallel is in the guiding
Groove.
In one embodiment of this invention, this, which is turned back to Linear transmission component, includes screw mandrel and feed screw nut, or
Person includes gear and rack, either including timing belt or including chain.
In one embodiment of this invention, the speculum is glass mirror.
In one embodiment of this invention, the scope at the obtuse angle is 125 °~145 °.
The present invention also proposes a kind for the treatment of head of radiotherapy equipment, including speculum moving machine as described above
Structure.
In one embodiment of this invention, when the speculum is on the beam path of the radiotherapy equipment,
In the hole for the inner shield at least partly falling into the radiotherapy equipment, when the speculum is contraction state, from
Open the hole of the inner shield.
The present invention also proposes a kind of radiotherapy equipment, including treatment head as described above.
Compared with prior art, the speculum travel mechanism of radiotherapy equipment of the invention, by speculum
Move mode is changed to inclination movement so that speculum can when on the beam path in radiotherapy equipment
To fall into the hole of inner shield, and can be exited from from the hole when shrinking, such speculum and inner shield
Apart from close, space-consuming very little.
Brief description of the drawings
Fig. 1 is a kind for the treatment of header structure of known radiotherapy apparatus.
Fig. 2 is the treatment header structure of the radiotherapy apparatus of one embodiment of the invention.
Fig. 3 is the stereogram of the speculum travel mechanism of one embodiment of the invention.
Fig. 4 shows the drive mechanism of the speculum travel mechanism of one embodiment of the invention.
Fig. 5 shows the state that the speculum of one embodiment of the invention is on the beam path of radiotherapy equipment
Figure.
Fig. 6 shows that the speculum of one embodiment of the invention is in the state diagram of contraction state.
Embodiment
For the above objects, features and advantages of the present invention can be become apparent, below in conjunction with accompanying drawing to this hair
Bright embodiment elaborates.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still of the invention
Other manner described here can also be different from using other to implement, therefore the present invention is not by described below
Specific embodiment limitation.
Embodiments of the invention describe the speculum travel mechanism of radiotherapy equipment, can be by reasonably moving
Dynamic speculum reduces the space-consuming of speculum.Fig. 2 is the treatment head of the radiotherapy apparatus of one embodiment of the invention
Structure.With reference to shown in figure 2, treatment head 20 includes accelerating tube 21, smooth filter 22, speculum 23
With light source 24.Speculum 23 is arranged on speculum travel mechanism (not shown).What light source 24 was sent
Light is reflected by speculum 23, X ray caused by the simulation accelerated pipe 21 of light beam of formation.In treatment head 20
It is interior to also have some inner shields, such as inner shield 25 and 26.It can be seen that due to inner shield, it is especially interior
The presence of shielding 25, limit the arrangement space of speculum 23.
The speculum travel mechanism of the present embodiment as shown in Figure 3 and Figure 4, including picture frame 31, guide groove 32
And a set of drive mechanism 33.Picture frame 31 is carrying speculum 23.Picture frame 31 is, for example, a flat board,
Speculum 23 is arranged on flat board.Guide groove 32 has the first guide section 32a and the second guide section 32b,
First guide section 32a and the second guide section 32b is substantially straightway, and into an obtuse angle between the two.Picture frame
31, which fit along guide groove 32, slides.Set in the first guide section 32a and the second guide section 32b adjacent
Curve transition is put, picture frame 31 is smoothly slided into the second guide section 32b from the first guide section 32a,
Or slide into the first guide section 32a from the second guide section 32b.Because the first guide section 32a is led with second
Presence to obtuse angle between section 32b, speculum during in the first guide section 32a and in the second guide section
Speculum during 32b, there is also roughly equal obtuse angle.Guide groove 32 preferably sets phase as shown in Figure 3
Every a pair, to play stable guide effect.There is the sidepiece of picture frame 31 roller 31a, roller 31a to put
In guide groove 32 and suitable for being slided in guide groove 32.When guide groove 32 is a pair, in picture frame 31
The all settable roller 31a in both sides.Each side wheel 31a quantity can be 1,2 (institutes in Fig. 3
Show) or more.When each side wheel 31a quantity is more, roller 31a and picture frame 31 peace
Dress mode can be flexible, to allow it to finely tune its position when being slided along guide groove 32.Other
In embodiment, roller can also be substituted with other guides, such as substitute roller using lead.
Drive mechanism 33 can be connected through the hinge picture frame 31, drive picture frame 31 and speculum 23 along guiding
Groove 32 slides.The beam path in radiotherapy equipment when speculum 23 is located at the first guide section 32a
On, shown in the state as shown in Fig. 2 position A and Fig. 5.When speculum 23 is located at the second guide section 32b
When be contraction state, the state as shown in Fig. 2 position B and Fig. 6, now its avoid radiotherapy equipment
Line 60, electronics will not be stopped.From figure 2 it can be seen that when speculum 23 is in position A, extremely
Small part is fallen into the hole of inner shield 25, and when speculum 23 is contraction state, leave the hole of inner shield.
By this design, speculum 23 and inner shield 25 need not as existing program at a distance,
Therefore the space taken is smaller so that the structure for the treatment of head 20 is more compact.
Speculum 23 in the present embodiment can use conventional glass mirror, so as to have relatively low cost,
And can equably reflection light.Speculum 23 can also use other types of thicker speculum.
In an embodiment of the present invention, the model at obtuse angle formed by the first guide section 32a and the second guide section 32b
Enclose is 125 °~145 °.
Drive mechanism 33 typically comprise motor 41, first gear 42, second gear 43, screw mandrel 44,
Feed screw nut 45, guide rail 46, sliding block 47 and guiding piece 48.First gear 42 is located at the output of motor 41
On axle, second gear 43 engages with first gear 42.Screw mandrel 44 is connected with second gear 43.Screw mandrel spiral shell
Mother 45 is located on screw mandrel and is connected with sliding block 47.Sliding block 47 is located on guide rail 46, guide rail 46 parallel to
Guide groove 32.Guiding piece 48 is connected to sliding block 47, and more specifically, guiding piece 48 is enclosed on axis of traction 49
On, the connection sliding block 47 of axis of traction 49.
Speculum 23 is carried using picture frame 31 in the present embodiment, as long as it is to be understood that speculum
23 have enough intensity, and picture frame 31 can omit.
In an alternate embodiment, the first guide section 32a and the second guide section 32b can be curved section, the two
Seamlessly transitted in adjacent.So, whole guide groove 32 is in one section of curve.In this case, it is in
Speculum during the first guide section 32a and speculum during in the second guide section 32b, still suffer between the two
One obtuse angle, the scope at the obtuse angle is 125 °~145 °.
A pair of first gears 42 and second gear 43 have been used in the present embodiment by the output of motor 41
It is delivered on screw mandrel 44.It is appreciated that output otherwise can be delivered to screw mandrel 44 by motor 41,
Such as motor 41 can be with connection wire rod 44 to drive its rotation.
It is pointed out that although guide rail 46 and sliding block 47 are contained in the present embodiment to make drive mechanism 33
Drive more smooth out, it is to be understood that, drive mechanism 33 can not include guide rail 46 and sliding block 47, this
When guiding piece 48 be directly connected with feed screw nut 45.
Using screw mandrel and feed screw nut as Linear transmission component is turned back in the present embodiment, by motor 41
Gyration be converted to drive picture frame 31 linear motion.In other embodiments, it is turned back to straight-line transmitting
Dynamic component can also include gear and rack, and gear engages with second gear 43, rack and pinion engagement.
Either being turned back to Linear transmission component also includes timing belt or chain.
The speculum travel mechanism of the radiotherapy equipment of the above embodiment of the present invention, by the mobile side of speculum
Formula is changed to inclination movement so that speculum can be fallen into when on the beam path in radiotherapy equipment
In the hole of inner shield, and it can be exited from from the hole when shrinking, the distance of such speculum and inner shield is very
Closely, space-consuming very little.
Although the present invention describes with reference to current specific embodiment, common skill in the art
Art personnel are it should be appreciated that the embodiment of the above is intended merely to the explanation present invention, without departing from essence of the invention
Various equivalent change or replacement can be also made in the case of god, therefore, as long as in the connotation of the present invention
In the range of change, modification to above-described embodiment will all fall in the range of following claims.
Claims (15)
1. a kind of speculum travel mechanism of radiotherapy equipment, including：
Guide groove, has the first guide section and the second guide section, and the speculum of the radiotherapy equipment is suitable to edge
It is anti-when speculum when guide groove slip, and being located at first guide section is with being located at second guide section
Mirror is penetrated into an obtuse angle；
Drive mechanism, the speculum is connected, drive the speculum to be slided along the guide groove, the wherein reflection
When mirror is located at the first guide section on the beam path of the radiotherapy equipment, the speculum be located at this second
It is contraction state during guide section.
2. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that also
Including picture frame, to carry the speculum.
3. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that should
First guide section and second guide section are respectively straightway, and first guide section and second guide section into
One obtuse angle.
4. the speculum travel mechanism of the radiotherapy equipment according to claim 1 or 3, it is characterised in that
The adjacent of first guide section and second guide section has curve transition.
5. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that should
First guide section and second guide section are respectively curved section, and first guide section and second guide section
Adjacent seamlessly transits.
6. the speculum travel mechanism of radiotherapy equipment according to claim 2, it is characterised in that should
Guide groove is a pair, respectively positioned at the both sides of the picture frame.
7. the speculum travel mechanism of radiotherapy equipment according to claim 2, it is characterised in that should
Picture frame sidepiece has guide, and the guide is placed in the guide groove and suitable for being slided in the guide groove.
8. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that should
Drive mechanism includes motor, is turned back to Linear transmission component and guiding piece, and this is turned back to the connection of Linear transmission component should
Motor, the guiding piece connect this and are turned back to Linear transmission component.
9. the speculum travel mechanism of radiotherapy equipment according to claim 8, it is characterised in that should
Drive mechanism also includes guide rail and sliding block, and this is turned back to Linear transmission component and connects the guiding piece by the sliding block, should
Sliding block is on the guide rail, and the guide rail parallel is in the guide groove.
10. the speculum travel mechanism of radiotherapy equipment according to claim 8, it is characterised in that should
Being turned back to Linear transmission component includes screw mandrel and feed screw nut, either including gear and rack or including timing belt,
Or including chain.
11. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that should
Speculum is glass mirror.
12. the speculum travel mechanism of radiotherapy equipment according to claim 1, it is characterised in that should
The scope at obtuse angle is 125 °~145 °.
13. a kind for the treatment of head of radiotherapy equipment, including the speculum as described in claim any one of 1-12
Travel mechanism.
14. the treatment head of radiotherapy equipment as claimed in claim 13, it is characterised in that when the speculum
When on the beam path of the radiotherapy equipment, the inner shield of the radiotherapy equipment is at least partly fallen into
Hole in, when the speculum is contraction state, leave the hole of the inner shield.
15. a kind of radiotherapy equipment, including the treatment head as described in claim 13 or 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356722.XA CN107432991B (en) | 2016-05-26 | 2016-05-26 | Radiotherapy equipment and reflector moving mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356722.XA CN107432991B (en) | 2016-05-26 | 2016-05-26 | Radiotherapy equipment and reflector moving mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107432991A true CN107432991A (en) | 2017-12-05 |
| CN107432991B CN107432991B (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610356722.XA Active CN107432991B (en) | 2016-05-26 | 2016-05-26 | Radiotherapy equipment and reflector moving mechanism thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256559Y (en) * | 1995-09-27 | 1997-06-18 | 蔡水泉 | Image reading device with reflective and penetrating dual reading function |
| EP2163936A1 (en) * | 2008-09-16 | 2010-03-17 | Ziemer Holding AG | Device and method for deflecting a laser beam |
| CN104042230A (en) * | 2014-06-12 | 2014-09-17 | 上海联影医疗科技有限公司 | Adjustable electron portal imaging device (EPID) based on CCD (charge coupled device) camera |
| CN104107510A (en) * | 2014-07-31 | 2014-10-22 | 重庆海扶医疗科技股份有限公司 | Movement scanning device of high-intensity focused ultrasonic treatment system |
| CN104590146A (en) * | 2014-12-25 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | Reflection screen taking-up and paying-off mechanism of head up display |
-
2016
- 2016-05-26 CN CN201610356722.XA patent/CN107432991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2256559Y (en) * | 1995-09-27 | 1997-06-18 | 蔡水泉 | Image reading device with reflective and penetrating dual reading function |
| EP2163936A1 (en) * | 2008-09-16 | 2010-03-17 | Ziemer Holding AG | Device and method for deflecting a laser beam |
| CN104042230A (en) * | 2014-06-12 | 2014-09-17 | 上海联影医疗科技有限公司 | Adjustable electron portal imaging device (EPID) based on CCD (charge coupled device) camera |
| CN104107510A (en) * | 2014-07-31 | 2014-10-22 | 重庆海扶医疗科技股份有限公司 | Movement scanning device of high-intensity focused ultrasonic treatment system |
| CN104590146A (en) * | 2014-12-25 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | Reflection screen taking-up and paying-off mechanism of head up display |
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| Publication number | Publication date |
|---|---|
| CN107432991B (en) | 2020-03-31 |
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Address after: 201807 2258 Chengbei Road, Jiading District, Shanghai Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 2258 Chengbei Road, Jiading District, Shanghai Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |