CN102389619B - Horizontal fine adjustment mechanism for bed surface of radiotherapy equipment - Google Patents
Horizontal fine adjustment mechanism for bed surface of radiotherapy equipment Download PDFInfo
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- CN102389619B CN102389619B CN201110171220.7A CN201110171220A CN102389619B CN 102389619 B CN102389619 B CN 102389619B CN 201110171220 A CN201110171220 A CN 201110171220A CN 102389619 B CN102389619 B CN 102389619B
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Abstract
The invention belongs to the field of medical appliances, and relates to a horizontal fine adjustment mechanism for the bed surface of radiotherapy equipment. The mechanism comprises a frame arranged below the bed surface; the frame is composed of an outer layer frame and an inner layer frame; the bed surface is connected with the inner layer frame; a set of driving components are respectively arranged on two sides of the outer layer frame; an oblique elongated chute is respectively arranged on two sides of the inner layer frame; a driving bearing is arranged in each of the oblique elongated chute; the inner layer frame is connected with the corresponding driving components through the driving bearings in the two oblique elongated chutes; a support shaft component is arranged in the middle of the front end of the outer layer frame; a support bearing is arranged on the support shaft component and connected with the inner layer frame; a shifting chute is arranged in the middle of the back end of the outer layer frame; a guide axle component is arranged in the middle of the back end of the inner layer frame; a guide bearing is arranged on the guide axle component; and the guide bearing is arranged in the shifting chute. The horizontal fine adjustment mechanism provided by the invention realizes horizontal adjustment of the bed surface, can quickly correct the position of the therapy bed surface, can eliminate radiation field error caused by deformation of the bed surface, and can ensure the therapeutic effect of accurate radiotherapy.
Description
Technical field
The invention belongs to medical instruments field, relate to a kind of WidFin mechanism of radiotherapy apparatus bed surface.
Background technology
Radiotherapy is one of primary treatment means of malignant tumor, along with the use of many Interesting Issues of Precise Radiations in recent years, the particularly extensive use of IMRT technology, the accuracy of irradiation field position becomes the key for the treatment of, and the generation of irradiation field error to have be to cause because treatment bed surface produces strain in the situation that bearing a heavy burden greatly, treatment bed surface generally can produce elastic deformation at the bed surface longitudinal axis and transverse axis both direction, and how by machinery, to go to the position of corrective therapy bed surface fast, thereby eliminating irradiation field error is the problem that we consider.
Summary of the invention
According to above deficiency of the prior art, technical problem to be solved by this invention is: the WidFin mechanism that a kind of radiotherapy apparatus bed surface is provided, driving by motor can realize bed surface around the rotation of the longitudinal axis and transverse axis, thereby realize the adjustment of bed surface level, fast the position of corrective therapy bed surface.
The technical solution adopted for the present invention to solve the technical problems is: the WidFin mechanism of radiotherapy apparatus bed surface, comprise support body, support body is positioned at bed surface below, support body is comprised of outer support body and internal layer support body, bed surface is connected with internal layer support body, outer support body both sides respectively arrange one group of driven unit, internal layer support body both sides respectively arrange a plagioclase groove, driving bearing is all set in plagioclase groove, internal layer support body connects with corresponding driven unit by the driving bearing in two plagioclase grooves, outer support body front center arranges back shaft assembly, spring bearing is set on back shaft assembly to be connected with internal layer support body, middle part, outer support body rear end arranges shifting chute, middle part, internal layer support body rear end arranges axis of guide assembly, on axis of guide assembly, guide bearing is set, guide bearing is positioned at shifting chute inside.
The front end of described driven unit all arranges limit assembly, and limit assembly shields, and prevents internal layer support body hyperkinesia under the driving of motor.
The medium position of described driven unit arranges zero position switch, and when zero position switch responds, bed surface recovers horizontal reference state.
Described internal layer support body rear end medium position arranges forced locking device, can auto lock when bed surface 180 degree rotation.
Operation principle and process:
Driven unit is driven by motor, when two groups of driven units move to a direction jointly, driven unit drives the driving bearing in plagioclase groove to move in the same direction, thereby internal layer support body is produced to active force, internal layer support body vertically rotates, due to the effect of axis of guide assembly, its movement locus is fixed.When two groups of driven units move round about, driven unit drives the driving bearing in plagioclase groove to move in the opposite direction, thereby internal layer support body both sides are produced to opposite effect power, and internal layer support body is made transverse rotation, due to the effect of axis of guide assembly, its movement locus is fixed.
Motor moves towards identical or contrary direction with two groups of driven units of certain speed drive, simultaneously under the effect of limit assembly, internal layer support body is done the motion of minute angle around transverse axis or the longitudinal axis, thereby drive bed surface around transverse axis or the longitudinal axis, to do the motion of minute angle, reach the adjustment that realizes bed surface level, fast the effect of corrective therapy bed surface position.
The beneficial effect that the present invention has is: the WidFin mechanism of radiotherapy apparatus bed surface, realized the adjustment of bed surface level, and the position of corrective therapy bed surface, can eliminate the irradiation field error that bed deformation causes fast, can guarantee the therapeutic effect of accurate radiotherapy.
Accompanying drawing explanation
Fig. 1, bed surface WidFin structural scheme of mechanism.
Fig. 2, bed surface WidFin mechanism cutaway view schematic diagram.
Fig. 3, bed surface WidFin mechanism cutaway view schematic diagram.
Fig. 4, the local enlarged diagram of driven unit.
Fig. 5, the local enlarged diagram of back shaft assembly.
Fig. 6, the local enlarged diagram of axis of guide assembly.
In figure: 1, outer support body; 2, internal layer support body; 3, limit assembly; 4, zero position switch; 5, driven unit; 6, forced locking device; 7, back shaft assembly; 8, axis of guide assembly; 9, bed surface; 10, driving bearing; 11, spring bearing; 12, shifting chute; 13, guide bearing.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Fig. 1-6, radiotherapy apparatus bed surface WidFin of the present invention mechanism, comprise support body, support body is positioned at bed surface 9 belows, support body is comprised of outer support body 1 and internal layer support body 2, bed surface 9 is connected with internal layer support body 2, outer support body 1 both sides respectively arrange one group of driven unit 5, internal layer support body 2 both sides respectively arrange a plagioclase groove, driving bearing 10 is all set in plagioclase groove, internal layer support body 2 connects with corresponding driven unit 5 by the driving bearing 10 in two plagioclase grooves, outer support body 1 front center arranges back shaft assembly 7, spring bearing 11 is set on back shaft assembly 7 to be connected with internal layer support body 2, outer support body 1 middle part, rear end arranges shifting chute 12, internal layer support body 2 middle parts, rear end arrange axis of guide assembly 8, guide bearing 13 is set on axis of guide assembly 8, guide bearing 13 is positioned at shifting chute 12 inside.
The front end of described driven unit 5 all arranges limit assembly 3, and limit assembly 3 shields, and prevents internal layer support body 2 hyperkinesia under the driving of motor.
The middle part of described driven unit 5 arranges zero position switch 4, and when zero position switch 4 response, bed surface 9 recovers horizontal reference state.
Described internal layer support body 2 middle parts, rear end arrange forced locking device 6, can auto lock when bed surface 9 one hundred eight ten degree rotation.
Described driven unit 5 is driven by motor, when two groups of driven units 5 move to a direction jointly, driven unit 5 drives the driving bearing 10 in plagioclase groove to move in the same direction, thereby internal layer support body 2 is produced to active force, internal layer support body 2 vertically rotates, due to the effect of axis of guide assembly 8, its movement locus is fixed.When two groups of driven units 5 move round about, driven unit 5 drives the driving bearing 10 in plagioclase groove to move in the opposite direction, thereby internal layer support body 2 both sides are produced to opposite effect power, internal layer support body 2 is made transverse rotation, due to the effect of axis of guide assembly 8, its movement locus is fixed.
Motor moves towards identical or contrary direction with two groups of driven units 5 of certain speed drive, simultaneously under the effect of limit assembly 3, internal layer support body 2 is done the motion of minute angle around transverse axis or the longitudinal axis, thereby drive bed surface 9 around transverse axis or the longitudinal axis, to do the motion of minute angle, reach the adjustment that realizes bed surface 9 levels, fast the effect of corrective therapy bed surface 9 positions.
The WidFin mechanism of radiotherapy apparatus bed surface of the present invention, has realized the adjustment of bed surface level, and the position of corrective therapy bed surface, can eliminate the irradiation field error that bed deformation causes fast, can guarantee the therapeutic effect of accurate radiotherapy.
Claims (4)
1. the WidFin mechanism of a radiotherapy apparatus bed surface, comprise support body, support body is positioned at bed surface below, support body is comprised of outer support body and internal layer support body, bed surface is connected with internal layer support body, it is characterized in that: outer support body both sides respectively arrange one group of driven unit, internal layer support body both sides respectively arrange a plagioclase groove, driving bearing is all set in plagioclase groove, internal layer support body connects with the driven unit on corresponding outer support body by the driving bearing in two plagioclase grooves, outer support body front center arranges back shaft assembly, spring bearing is set on back shaft assembly to be connected with internal layer support body, middle part, outer support body rear end arranges shifting chute, middle part, internal layer support body rear end arranges axis of guide assembly, on axis of guide assembly, guide bearing is set, guide bearing is positioned at shifting chute inside.
2. the WidFin mechanism of radiotherapy apparatus bed surface according to claim 1, is characterized in that: the front end of described driven unit all arranges limit assembly.
3. the WidFin mechanism of radiotherapy apparatus bed surface according to claim 1, is characterized in that: the middle part of described driven unit arranges zero position switch.
4. the WidFin mechanism of radiotherapy apparatus bed surface according to claim 1, is characterized in that: described middle part, internal layer support body rear end arranges forced locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110171220.7A CN102389619B (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for bed surface of radiotherapy equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110171220.7A CN102389619B (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for bed surface of radiotherapy equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102389619A CN102389619A (en) | 2012-03-28 |
| CN102389619B true CN102389619B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110171220.7A Active CN102389619B (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for bed surface of radiotherapy equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109303983B (en) * | 2018-10-29 | 2024-04-09 | 苏州雷泰医疗科技有限公司 | Medical accelerator treatment bed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512414Y (en) * | 2001-12-31 | 2002-09-25 | 陈和平 | Translation lifting type medical patient transport cart |
| CN201033078Y (en) * | 2006-10-31 | 2008-03-12 | 贵州航天风华精密设备有限公司 | Longitudinal double-layer telescopic interlock mechanism of the medical accelerator therapeutic bed |
| CN101601619A (en) * | 2009-06-26 | 2009-12-16 | 张德宏 | Multi-functional electric traction, rectification and recovery bed |
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2011
- 2011-06-23 CN CN201110171220.7A patent/CN102389619B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512414Y (en) * | 2001-12-31 | 2002-09-25 | 陈和平 | Translation lifting type medical patient transport cart |
| CN201033078Y (en) * | 2006-10-31 | 2008-03-12 | 贵州航天风华精密设备有限公司 | Longitudinal double-layer telescopic interlock mechanism of the medical accelerator therapeutic bed |
| CN101601619A (en) * | 2009-06-26 | 2009-12-16 | 张德宏 | Multi-functional electric traction, rectification and recovery bed |
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| Publication number | Publication date |
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| CN102389619A (en) | 2012-03-28 |
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