CN202136693U - Horizontal fine adjustment mechanism for surface of radiotherapeutic equipment bed - Google Patents
Horizontal fine adjustment mechanism for surface of radiotherapeutic equipment bed Download PDFInfo
- Publication number
- CN202136693U CN202136693U CN201120216200U CN201120216200U CN202136693U CN 202136693 U CN202136693 U CN 202136693U CN 201120216200 U CN201120216200 U CN 201120216200U CN 201120216200 U CN201120216200 U CN 201120216200U CN 202136693 U CN202136693 U CN 202136693U
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- support body
- bed surface
- internal layer
- layer support
- bearing
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Abstract
The utility model belongs to the field of medical equipment, and relates to a horizontal fine adjustment mechanism for a surface of a radiotherapeutic equipment bed, which comprises a frame below the bed surface. The frame includes an outer frame and an inner frame, the bed surface is connected with the inner frame, two driving components are disposed on two sides of the outer frame respectively, two elongated inclined slots are arranged on two sides of the inner frame respectively, a driving bearing is arranged in each elongated inclined slot, the inner frame is connected with the corresponding driving components through the driving bearings in the two elongated inclined slots, a support shaft component is disposed in the middle of the front end of the outer frame, a support bearing disposed on the support shaft component is connected with the inner frame, a movement slot is arranged in the middle of the rear end of the outer frame, a guide shaft component is disposed in the middle of the rear end of the inner frame, and a guide bearing disposed on the guide shaft component is positioned inside the movement slot. The horizontal fine adjustment mechanism can be used for horizontal adjustment of the bed surface and for quickly correcting the position of the therapeutic bed surface, radiation field errors caused by deformation of the bed surface can be eliminated, and therapeutic effect of precise radiotherapy can be guaranteed.
Description
Technical field
This utility model belongs to medical instruments field, relates to a kind of WidFin mechanism of radiotherapy apparatus bed surface.
Background technology
Radiotherapy is one of main treatment means of malignant tumor; Along with the use of many precise radiotherapy technology in recent years; IMRT broad application particularly; The accuracy of irradiation field position becomes the key of treatment, and the generation of irradiation field error to have be to cause owing to the treatment bed surface produces strain under the situation of bearing a heavy burden greatly, the treatment bed surface generally can be in the bed surface longitudinal axis and transverse axis both direction generation elastic deformation; And how to go to the position of corrective therapy bed surface fast through machinery, be the problem that we consider thereby eliminate the irradiation field error.
The utility model content
According to above deficiency of the prior art; This utility model technical problem to be solved is: the WidFin mechanism that a kind of radiotherapy apparatus bed surface is provided; Driving through motor can realize that bed surface centers on 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.
This utility model solves the technical scheme that its technical problem adopted: the WidFin mechanism of radiotherapy apparatus bed surface, comprise support body, and support body is positioned at the bed surface below; Support body is made up of outer support body and internal layer support body, and bed surface is connected with the internal layer support body, and outer support body both sides respectively are provided with one group of driven unit; Internal layer support body both sides respectively are provided with an oblique elongated slot, tiltedly in the elongated slot driving bearing are set all, and the internal layer support body connects with corresponding driven unit through the driving bearing in two oblique elongated slots; Outer support body front center is provided with the back shaft assembly; Spring bearing is set on the back shaft assembly is connected with the internal layer support body, middle part, outer support body rear end is provided with shifting chute, and middle part, internal layer support body rear end is provided with axis of guide assembly; On the axis of guide assembly guide bearing is set, guide bearing is positioned at shifting chute inside.
The front end of described driven unit all is provided with 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 is provided with the zero-bit switch, and when the zero-bit switching response, bed surface recovers the horizontal reference state.
Described internal layer support body rear end medium position is provided with forced locking device, can auto lock when bed surface 180 degree rotations.
Operation principle and process:
Driven unit is by motor-driven; When two groups of driven units jointly when a direction moves; The driving bearing that driven unit drives in the oblique elongated slot moves in the same direction, thereby the internal layer support body is produced active force, and the internal layer support body vertically rotates; Because the effect of axis of guide assembly, its movement locus is fixed.When two groups of driven units move round about; The driving bearing that driven unit drives in the oblique elongated slot moves in the opposite direction, thereby internal layer support body both sides are produced opposite effect power, and the internal layer support body is done laterally rotation; Because the effect of axis of guide assembly, its movement locus is fixed.
Motor drives two groups of driven units towards identical or opposite direction motion with certain speed; Simultaneously under the effect of limit assembly; The internal layer support body is done the motion of minute angle around the transverse axis or the longitudinal axis; Thereby drive bed surface and do the motion of minute angle, reach the adjustment that realizes the bed surface level, fast the effect of corrective therapy bed surface position around the transverse axis or the longitudinal axis.
The beneficial effect that this utility model had is: the WidFin mechanism of radiotherapy apparatus bed surface; Realized the adjustment of bed surface level; The irradiation field error that bed deformation causes can be eliminated in the position of corrective therapy bed surface fast, can guarantee the therapeutic effect of accurate radiotherapy.
Description of drawings
Fig. 1, bed surface WidFin structural scheme of mechanism.
Fig. 2, bed surface WidFin mechanism cutaway view sketch map.
Fig. 3, bed surface WidFin mechanism cutaway view sketch map.
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.
Among the figure: 1, outer support body; 2, internal layer support body; 3, limit assembly; 4, zero-bit 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 the embodiment of this utility model is done and to further describe:
Shown in Fig. 1-6, the WidFin mechanism of this utility model radiotherapy apparatus bed surface comprises support body; Support body is positioned at bed surface 9 belows, and support body is made up of with internal layer support body 2 outer support body 1, and bed surface 9 is connected with internal layer support body 2; Outer support body 1 both sides respectively are provided with one group of driven unit 5, and internal layer support body 2 both sides respectively are provided with an oblique elongated slot, tiltedly in the elongated slot driving bearing 10 are set all; Internal layer support body 2 connects with corresponding driven unit 5 through the driving bearing 10 in two oblique elongated slots, and outer support body 1 front center is provided with back shaft assembly 7, spring bearing 11 is set on the back shaft assembly 7 is connected with internal layer support body 2; Middle part, outer support body 1 rear end is provided with shifting chute 12; Middle part, internal layer support body 2 rear ends is provided with axis of guide assembly 8, and guide bearing 13 is set on the axis of guide assembly 8, and guide bearing 13 is positioned at shifting chute 12 inside.
The front end of described driven unit 5 all is provided with 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 is provided with zero-bit switch 4, and when 4 responses of zero-bit switch, bed surface 9 recovers the horizontal reference state.
Middle part, described internal layer support body 2 rear ends is provided with forced locking device 6, can auto lock when bed surface 9 one hundred eight ten degree rotations.
Described driven unit 5 is by motor-driven; When two groups of driven units 5 jointly when a direction moves; The driving bearing 10 that driven unit 5 drives in the oblique elongated slot moves in the same direction, thereby internal layer support body 2 is produced active force, and internal layer support body 2 vertically rotates; Because the effect of axis of guide assembly 8, its movement locus is fixed.When two groups of driven units 5 move round about; The driving bearing 10 that driven unit 5 drives in the oblique elongated slot moves in the opposite direction; Thereby internal layer support body 2 both sides are produced opposite effect power; Internal layer support body 2 is done laterally rotation, because the effect of axis of guide assembly 8, its movement locus is fixed.
Motor drives two groups of driven units 5 towards identical or opposite direction motion with certain speed; Simultaneously under the effect of limit assembly 3; Internal layer support body 2 is done the motion of minute angle around the transverse axis or the longitudinal axis; Thereby drive bed surface 9 and 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 around the transverse axis or the longitudinal axis.
The WidFin mechanism of this utility model radiotherapy apparatus bed surface has realized the adjustment of bed surface level, and the irradiation field error that bed deformation causes can be eliminated in the position of corrective therapy bed surface fast, can guarantee the therapeutic effect of accurate radiotherapy.
Claims (4)
1. the WidFin mechanism of a radiotherapy apparatus bed surface comprises support body, and support body is positioned at the bed surface below; Support body is made up of outer support body and internal layer support body, and bed surface is connected with the internal layer support body, it is characterized in that: outer support body both sides respectively are provided with one group of driven unit; Internal layer support body both sides respectively are provided with an oblique elongated slot, tiltedly in the elongated slot driving bearing are set all, and the internal layer support body connects with corresponding driven unit through the driving bearing in two oblique elongated slots; Outer support body front center is provided with the back shaft assembly; Spring bearing is set on the back shaft assembly is connected with the internal layer support body, middle part, outer support body rear end is provided with shifting chute, and middle part, internal layer support body rear end is provided with axis of guide assembly; On the 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 is provided with 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 is provided with the zero-bit switch.
4. the WidFin mechanism of radiotherapy apparatus bed surface according to claim 1 is characterized in that: middle part, described internal layer support body rear end is provided with forced locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120216200U CN202136693U (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for surface of radiotherapeutic equipment bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120216200U CN202136693U (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for surface of radiotherapeutic equipment bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202136693U true CN202136693U (en) | 2012-02-08 |
Family
ID=45547774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120216200U Expired - Lifetime CN202136693U (en) | 2011-06-23 | 2011-06-23 | Horizontal fine adjustment mechanism for surface of radiotherapeutic equipment bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202136693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617537A (en) * | 2015-12-26 | 2016-06-01 | 王明娟 | Radiation instrument |
-
2011
- 2011-06-23 CN CN201120216200U patent/CN202136693U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105617537A (en) * | 2015-12-26 | 2016-06-01 | 王明娟 | Radiation instrument |
| CN105617537B (en) * | 2015-12-26 | 2017-11-14 | 王晓丽 | Radiate instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20141001 |
|
| RGAV | Abandon patent right to avoid regrant |