CN202620501U - Device for adjusting gamma angles - Google Patents
Device for adjusting gamma angles Download PDFInfo
- Publication number
- CN202620501U CN202620501U CN 201220124520 CN201220124520U CN202620501U CN 202620501 U CN202620501 U CN 202620501U CN 201220124520 CN201220124520 CN 201220124520 CN 201220124520 U CN201220124520 U CN 201220124520U CN 202620501 U CN202620501 U CN 202620501U
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- portable plate
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- 238000009434 installation Methods 0.000 claims abstract description 38
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 27
- 238000001959 radiotherapy Methods 0.000 claims abstract description 22
- 241001125879 Gobio Species 0.000 claims description 76
- 241001637516 Polygonia c-album Species 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 238000002560 therapeutic procedure Methods 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 210000001508 eye Anatomy 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003977 optic chiasm Anatomy 0.000 description 1
- 230000004413 optic chiasma Effects 0.000 description 1
- 210000001328 optic nerve Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a device for adjusting gamma angles used in a head radiotherapy system. The device is used to adjust a three-dimensional positioning head support component, and comprises a first adjusting component and a second adjusting component which are symmetrically disposed on two sides of the three-dimensional positioning head support component and are symmetric to each other. The first adjusting component comprises an installation substrate, an active plate, a fixing trunnion connects the installation substrate and the active plate, a planet trunnion fixed on the active plate, a spring steel ball, gamma angle location holes disposed on the active plate, an encoder gear, and an encoder. The active plate can rotate relative to the installation substrate. The spring steel ball and the gamma angle location holes match up to form positions to enable rotation of a plurality of gears. The encoder gear and the encoder match up to accurately read gamma angle values. The device for adjusting gamma angles enables an automatic positioning system of a head radiotherapy device to keep a gamma angle adjustable range to a maximum level, and precision of the device can be ensured by machining precision. Gamma angle values are digitalized and real-time tracking and management of the gamma angles in a therapeutic process and automatic record and archiving in a database are realized.
Description
Technical field
This utility model relates to a kind of head radiotherapy equipment parts, relates in particular to the gamma angle regulating device in the system of a kind of head radiotherapy equipment pendulum position.
Background technology
Usually need adjust in the head radiotherapy apparatus patient's head pendulum parallactic angle degree; Let patient's sensitive organization such as eyes, brain stem, optic nerve, optic chiasma etc. avoid the irradiation of ray with this, the pendulum parallactic angle degree of suitable in addition adjustment head also makes partial mechanical interference to be evaded.Pendulum position device in the present head radiotherapy system has manual pendulum position and automatic pendulum position dual mode; Manually a pendulum position mode is to utilize artificial rotary fan-shaped plate, is adjusted to after the predetermined angle with the locked mode of screw, and predetermined angle can be leaned on human eye to discern scale to come subjective judgment; Owing to all be that target spot with patient's head moves to the along irradiation in this mode; The adjustment at gamma angle is rotated round the target spot center, so error is just relevant with the path that ray is passed by, can be to dosage planning influence to some extent; But can not influence the positioning accuracy of target, thus its design accuracy be 0.5 ° enough.Yet; The rotation at gamma angle is that the center is rotated with patient's target spot no longer in automatic pendulum position mode, is that patient's target spot is adjusted around fixing rotating shaft on the contrary, therefore; This moment the gamma angle error not only influential to dosage planning; Location precision to target spot is also very big, and its design accuracy should reach more than 0.5 ' than high to the requirement of precision in the mode of manual pendulum position for this reason.The general mode that adopts is that assurance through machining accuracy is with 4 fixed integer value slots of the constant one-tenth in gamma angle in the present automatic pendulum position mode; Perhaps simply let the gamma angle keep 90 degree vertically constant forever; Though this dual mode can both guarantee the design accuracy at gamma angle; But reduced relatively manually putting the gamma angle adjustable range that to realize in the mode; Either large or small restriction the selectable range of dosage when planning sensitive organization protection, the avoidance of the local mechanical interference region that has also reduced simultaneously maybe, simultaneously for the adjustment angle at gamma angle; Owing to can't read digital signal, therefore can not realize the gamma angle real-time tracking management in the therapeutic process and in the data base, write down file automatically.
The utility model content
The purpose of this utility model is to provide a kind of head radiotherapy system gamma angle regulating device; Through being set, a plurality of gammas angle locating hole realizes the rotation of many gears between portable plate and the installation base plate; Farthest kept gamma angle adjustable extent; Simultaneously, adopt the encoder gear to cooperate, realized accurately reading the angle value at gamma angle and making it digitized with encoder.
This utility model is achieved in that a kind of head radiotherapy system gamma angle regulating device, is used for adjusting three-dimensional positioning head frame assembly; Comprise the first adjustment assembly and the second adjustment assembly; Said first adjustment assembly and the symmetrical each other part of the said second adjustment assembly, and link to each other with said three-dimensional positioning head frame assembly respectively, be symmetricly set in the both sides of said three-dimensional positioning head frame assembly; The said first adjustment assembly comprises an installation base plate and a portable plate; Offer a fixing gudgeon locating hole on the said installation base plate, offer a fixing gudgeon installing hole on the said portable plate, also comprise a fixing gudgeon; Said fixedly gudgeon pass said fixedly gudgeon locating hole and fixedly the gudgeon installing hole connection of said installation base plate and portable plate is comprised that also one is fixedly arranged on the planet gudgeon on the said portable plate.
Said portable plate is for being the fanning strip in axle center with the fixing central shaft of gudgeon installing hole; Form a sliding cavity near fixing sector indent on its normal orientation of gudgeon installing hole on the said portable plate; Said sliding cavity lateral surface is for the fixing central shaft of gudgeon installing hole being axle center and the radius arc surface less than said portable plate radius, and said sliding cavity lateral surface is to being recessed to form a dovetail groove away from fixing gudgeon installing hole direction; Said installation base plate grows a boss in the normal orientation epirelief near said fixedly gudgeon locating hole; Said boss lateral surface is for being axle center and the radius arc surface less than the radius of said the above sliding cavity of portable plate with said fixedly gudgeon locating hole central shaft, and said boss lateral surface is to be recessed to form a dovetail groove away from said fixedly gudgeon locating hole direction; Dovetail groove on dovetail groove on the said portable plate and the said installation base plate cooperatively interacts.
The said first adjustment assembly also comprises a spring steel ball; Offer the spring steel ball plugging hole on the said installation base plate; Offer a plurality of gammas angle locating hole on the said portable plate, the diameter of said spring steel ball plugging hole and said a plurality of gammas angle locating hole is all less than the diameter of said spring steel ball, and said spring steel ball one end is against said spring steel ball plugging hole; The other end is locating hole against the gamma angle, and said a plurality of gammas angle locating hole diameter is identical.
Said a plurality of gammas angle locating hole is at uniform distribution on the segmental arc that is the axle center with said gudgeon installing hole central shaft, and the corresponding radian of distance was 5 degree or 10 degree between said a plurality of gammas angle locating hole was adjacent.
The said first adjustment assembly also comprises an encoder gear; Said encoder gear is fixedly arranged on said installation base plate one side; Also comprise an encoder, said encoder is fixedly arranged on said installation base plate opposite side, also comprises passing the encoder gear fixed axis that said portable plate is provided with; Said encoder gear fixed axis one end is fixedly connected the encoder gear; The other end is fixedly connected encoder, and said portable plate outside cambered surface is provided with equally distributed latch, and the latch of said portable plate lateral surface matches with said encoder gear.
The said first adjustment assembly also comprises lock-screw; The central shaft that offers on the said portable plate with said gudgeon installing hole is the arc locking chute in axle center, and the width of said arc locking chute is greater than the screw diameter of said lock-screw and less than the head diameter of said lock-screw.
Said fixedly gudgeon comprises a straight pin, the protruding hemisphere that grows of an end face of said straight pin, and the protruding location step that grows between said straight pin and the said hemisphere, said positioning step is the cylinder of diameter greater than said straight pin diameter.
Between said fixedly gudgeon and the said fixedly gudgeon installing hole is interference fit.
A kind of head radiotherapy system gamma angle regulating device that adopts this utility model embodiment to provide; Through being set, a plurality of gammas angle locating hole realizes the rotation of many gears between portable plate and the installation base plate; Make the automatic pendulum position system of head radiotherapy equipment farthest keep gamma angle adjustable extent, and its precision can guarantee through machining accuracy, simultaneously; Can accurately read the angle value at gamma angle through being arranged at cooperating between encoder gear and the encoder on the installation base plate; Make this angle value be able to digitized, made things convenient for and in the data base, write down and the real-time tracking management, and practiced thrift geometric space.
Description of drawings
Fig. 1 is the structural representation of a kind of head radiotherapy system of this utility model gamma angle regulating device;
Fig. 2 is the structure exploded perspective view of this utility model first adjustment assembly;
Fig. 3 is a fixedly gudgeon structural representation of this utility model;
Fig. 4 is the mounting board structure sketch map of this utility model first adjustment assembly;
Fig. 5 is the portable plate structural representation of this utility model first adjustment assembly.
The specific embodiment
For the purpose, technical scheme and the advantage that make this utility model is clearer,, this utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation this utility model, and be not used in qualification this utility model.
Fig. 1 is the structural representation of a kind of head radiotherapy system of this utility model gamma angle regulating device.As shown in Figure 1; The head radiotherapy system comprises three-dimensional positioning head frame assembly 3; Head radiotherapy system gamma angle regulating device comprises the first adjustment assembly 1 and the second adjustment assembly 2; This first and second adjustment modular construction symmetrical each other part, and first and second adjustment assembly 1,2 links to each other with three-dimensional positioning head frame assembly 3 respectively, is symmetricly set in the both sides of three-dimensional positioning head frame assembly 3.
Fig. 2 is the structural representation of this utility model first adjustment assembly 1.As shown in Figure 2, the first adjustment assembly 1 comprises an installation base plate 11, a portable plate 12, fixedly gudgeon 13, a planet gudgeon 14.As shown in Figure 3; Fixedly the structure of gudgeon 13 is for comprising a straight pin 131; The protruding hemisphere 132 that grows of one end face of straight pin 131, the protruding column type positioning step 133 that grows between straight pin 131 and the said hemisphere 132, the diameter of positioning step 133 is greater than the diameter of straight pin 131.Fig. 4, Fig. 5 are respectively installation base plate, the portable plate structural representation of this utility model first adjustment assembly.Like Fig. 2, Fig. 4 and shown in Figure 5; Offer a fixing gudgeon locating hole 111 on the installation base plate 11; Offer a fixing gudgeon installing hole 121 on the portable plate 12; Fixedly gudgeon 13 pass fixedly gudgeon locating hole 111 and fixedly gudgeon installing hole 121 be connected and installed substrate 11 and portable plate 12, also be provided with planet gudgeon installing hole 122 on this portable plate 12, the structure of planet gudgeon 14 is with fixedly gudgeon 13 is identical; The length of its straight pin slightly is shorter than the fixedly length of gudgeon straight pin 131, and this planet gudgeon 14 is fixed in the planet gudgeon installing hole 122.
As shown in Figure 5; Portable plate 12 is for being the fanning strip in axle center with the fixing central shaft of gudgeon installing hole 121; Portable plate 12 forms a sliding cavity 123 near fixing sector indent on its normal orientation of gudgeon installing hole 121; Sliding cavity 123 is fan-shaped cavity, and its lateral surface is for the fixing central shaft of gudgeon installing hole 121 being axle center and the radius arc surface less than the radius of sector movable plate 12, and sliding cavity 123 lateral surface are to being recessed to form a dovetail groove 124 away from fixing gudgeon installing hole 121 directions.As shown in Figure 4; On installation base plate 11, grow a boss 112 near the fixing normal orientation epirelief of gudgeon locating hole 111; Said boss 112 lateral surface are for fixing gudgeon locating hole 111 central shafts being axle center and the radius arc surface less than the radius of the fan-shaped sliding cavity 123 on the portable plate 12, and boss 112 lateral surface are to being recessed to form a dovetail groove 113 away from fixing gudgeon locating hole 111 directions.
The first adjustment assembly 1 also comprises a spring steel ball, and spring steel ball is spherical steel ball.Like Fig. 4, shown in Figure 5; Offer spring steel ball plugging hole 114 on the installation base plate 11; Offer a plurality of gammas angle locating hole 125 on the portable plate 12, these a plurality of gammas angle locating hole 125 diameter are identical, and the diameter of itself and spring steel ball plugging hole 114 is all less than the spring steel ball diameter of (figure does not show); This a plurality of gammas angle locating hole 125 is along being uniform distribution on the segmental arc in axle center with gudgeon installing hole 121 central shafts, and the corresponding radian of distance is 5 degree or 10 degree between the locating hole of preferred adjacent gamma angle.Spring steel ball one end is against spring steel ball plugging hole 114, and the other end is locating hole 125 against the gamma angle.
As shown in Figure 2; The first adjustment assembly also comprises lock-screw 15, and is as shown in Figure 5, and offering on the portable plate 12 with the central shaft of gudgeon installing hole 121 is the arc locking chute 127 in axle center; The width of arc locking chute 127 is greater than the screw diameter of lock-screw 15 and less than the head diameter of lock-screw 15; As shown in Figure 4, offer trip bolt hole 116 on the installation base plate 11, trip bolt hole 116 is a screwed hole; As shown in Figure 2, lock-screw 15 passes the use that matches with trip bolt hole 116 of this locking chute 127.
Like Fig. 2, shown in Figure 4; The first adjustment assembly 1 also comprises an encoder gear 16, an encoder 17 and an encoder gear fixed axis 18; Offer encoder gear shaft installing hole 115 on the installation base plate 11, encoder gear fixed axis 18 passes these encoder gear shaft installing hole 115 1 ends and is fixedly connected encoder gear 16, and the other end is fixedly connected encoder 17; So; Encoder gear 16 just is fixedly arranged on installation base plate 11 1 sides, and encoder 17 is fixedly arranged on installation base plate 11 opposite sides, need to prove; Should be placed in fixedly the encoder at gudgeon place and be installed on the installation base plate and and lay respectively at not homonymy of installation base plate, save the fixedly geometric space at gudgeon place so greatly with the encoder gear.Like Fig. 4, portable plate 12 outside cambered surfaces are provided with equally distributed latch 126, and the latch 126 of portable plate 12 lateral surface matches with encoder gear 16.
As shown in Figure 2; The installation process of the first adjustment assembly 1 is for interlocking the dovetail groove 124 on dovetail groove on the installation base plate 11 113 and the portable plate 12 earlier; Fixedly on gudgeon 13 and the portable plate 12 fixedly the fixedly gudgeon locating hole 111 on gudgeon installing hole 121 and the installation base plate 11 be fastenedly connected; Should be fixedly on gudgeon 13 and the portable plate 12 fixedly between the gudgeon installing hole 121 for interference fit is connected, gudgeon 13 is rotated can to guarantee to center on fixedly along dovetail groove by portable plate 12 like this; Then, in the spring steel ball plugging hole 114 on spring steel ball (figure do not show) installation base plate 11 of packing into, its position just with portable plate 12 on locating hole 125 positions, a plurality of gammas angle corresponding.During portable plate 12 rotations; Gamma angle locating hole is the rotational alignment spring steel ball successively, and after portable plate 12 rotation put in place, spring steel ball can bullet advances one of them gamma angle locating hole blocked it; The portable plate anglec of rotation of this moment is the initial elasticity steel ball to the angle that stops between the elastic steel ball; Its error reading no longer relies on the subjective judgment of human eye, but controls by the screens in when gearshift, can guarantee its error through the machining accuracy of gamma angle locating hole and spring steel ball plugging hole usually; After certain gamma angle locating hole is by the spring steel ball screens; Lock-screw 15 is passed on the portable plate 12 locking chute 127 and is screwed into the trip bolt hole 116 on the installation base plate 11, and this moment, portable plate 12 was secured in a press, and had guaranteed that the angle of adjusting no longer changes; In the process of portable plate 12 rotations; The latch 126 of portable plate 12 lateral surface can drive encoder gear 16 and be rotated; Encoder gear 16 passes to the encoder 17 that is installed in installation base plate back side relative position with the angle of rotating through encoder gear shaft 18; This moment encoder 17 through Parameters Transformation just can identification activity plate 12 angle of actual rotation just now, and this numerical value be sent to display screen carry out synchronous tracing display.Because the reading at gamma angle has been realized digitized, but so this reading entering computer database carry out the recording and tracking management.Same, the installation process of the second adjustment assembly 2 is identical with the installation process of the first adjustment assembly 1.
As shown in Figure 1; After locking is adjusted at the gamma angle to the right place; Two locating holes of a side on the three-dimensional positioning head frame 3 of patient are aimed at fixedly gudgeon and planet gudgeon on the first adjustment assembly respectively, insert then, same; Two locating holes of three-dimensional positioning head frame assembly 3 opposite sides are aimed at fixedly gudgeon and the planet gudgeon on the second adjustment assembly respectively, insert then.Then, first and second adjusts assembly through motor-driven, it is drawn close each other compressing, and the anglec of rotation of three-dimensional positioning head frame assembly is just through fixedly gudgeon and planet gudgeon have obtained adjusting fixing at this moment.
The above is merely the preferred embodiment of this utility model; Not in order to restriction this utility model; Any modification of being done within all spirit and principles at this utility model, be equal to replacement and improvement etc., all should be included within the protection domain of this utility model.
Claims (8)
1. a head radiotherapy system gamma angle regulating device is used for adjusting three-dimensional positioning head frame assembly, it is characterized in that; Comprise the first adjustment assembly and the second adjustment assembly; Said first adjustment assembly and the symmetrical each other part of the said second adjustment assembly, and link to each other with said three-dimensional positioning head frame assembly respectively, be symmetricly set in the both sides of said three-dimensional positioning head frame assembly; The said first adjustment assembly comprises an installation base plate and a portable plate; Offer a fixing gudgeon locating hole on the said installation base plate, offer a fixing gudgeon installing hole on the said portable plate, also comprise a fixing gudgeon; Said fixedly gudgeon pass said fixedly gudgeon locating hole and fixedly the gudgeon installing hole connection of said installation base plate and portable plate is comprised that also one is fixedly arranged on the planet gudgeon on the said portable plate.
2. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 1; It is characterized in that; Said portable plate is for being the fanning strip in axle center with the fixing central shaft of gudgeon installing hole; Form a sliding cavity near fixing sector indent on its normal orientation of gudgeon installing hole on the said portable plate; Said sliding cavity lateral surface is for the fixing central shaft of gudgeon installing hole being axle center and the radius arc surface less than said portable plate radius, and said sliding cavity lateral surface is to being recessed to form a dovetail groove away from fixing gudgeon installing hole direction; Said installation base plate grows a boss in the normal orientation epirelief near said fixedly gudgeon locating hole; Said boss lateral surface is for being axle center and the radius arc surface less than the radius of said the above sliding cavity of portable plate with said fixedly gudgeon locating hole central shaft, and said boss lateral surface is to be recessed to form a dovetail groove away from said fixedly gudgeon locating hole direction; Dovetail groove on dovetail groove on the said portable plate and the said installation base plate cooperatively interacts.
3. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 2; It is characterized in that; The said first adjustment assembly also comprises a spring steel ball, offers the spring steel ball plugging hole on the said installation base plate, offers a plurality of gammas angle locating hole on the said portable plate; The diameter of said spring steel ball plugging hole and said a plurality of gammas angle locating hole is all less than the diameter of said spring steel ball; Said spring steel ball one end is against said spring steel ball plugging hole, and the other end is locating hole against the gamma angle, and said a plurality of gammas angle locating hole diameter is identical.
4. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 3; It is characterized in that; Said a plurality of gammas angle locating hole is at uniform distribution on the segmental arc that is the axle center with said gudgeon installing hole central shaft, and the corresponding radian of distance was 5 degree or 10 degree between said a plurality of gammas angle locating hole was adjacent.
5. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 4 is characterized in that, the said first adjustment assembly also comprises an encoder gear; Said encoder gear is fixedly arranged on said installation base plate one side; Also comprise an encoder, said encoder is fixedly arranged on said installation base plate opposite side, also comprises passing the encoder gear fixed axis that said portable plate is provided with; Said encoder gear fixed axis one end is fixedly connected the encoder gear; The other end is fixedly connected encoder, and said portable plate outside cambered surface is provided with equally distributed latch, and the latch of said portable plate lateral surface matches with said encoder gear.
6. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 2; It is characterized in that; The said first adjustment assembly also comprises lock-screw; The central shaft that offers on the said portable plate with said gudgeon installing hole is the arc locking chute in axle center, and the width of said arc locking chute is greater than the screw diameter of said lock-screw and less than the head diameter of said lock-screw.
7. like any described a kind of head radiotherapy system gamma angle regulating device of claim 1 to 6; It is characterized in that; Said fixedly gudgeon comprises a straight pin; The protruding hemisphere that grows of one end face of said straight pin, the protruding location step that grows between said straight pin and the said hemisphere, said positioning step is the cylinder of diameter greater than said straight pin diameter.
8. a kind of head radiotherapy system gamma angle regulating device as claimed in claim 1 is characterized in that, is interference fit between said fixedly gudgeon and the said fixedly gudgeon installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124520 CN202620501U (en) | 2012-03-20 | 2012-03-20 | Device for adjusting gamma angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124520 CN202620501U (en) | 2012-03-20 | 2012-03-20 | Device for adjusting gamma angles |
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| CN202620501U true CN202620501U (en) | 2012-12-26 |
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| CN 201220124520 Expired - Lifetime CN202620501U (en) | 2012-03-20 | 2012-03-20 | Device for adjusting gamma angles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109048443A (en) * | 2018-07-25 | 2018-12-21 | 哈尔滨汽轮机厂有限责任公司 | A kind of gas turbine guide vane turnery processing alignment device |
| WO2019140853A1 (en) * | 2018-01-19 | 2019-07-25 | 深圳市奥沃医学新技术发展有限公司 | Positioning method and apparatus, and radiation therapy system |
| WO2021012152A1 (en) * | 2019-07-22 | 2021-01-28 | 西安大医集团股份有限公司 | Mask positioning assembly and positioning system |
| CN114199586A (en) * | 2021-11-30 | 2022-03-18 | 东风商用车有限公司 | Special foot model for trample endurance test |
-
2012
- 2012-03-20 CN CN 201220124520 patent/CN202620501U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019140853A1 (en) * | 2018-01-19 | 2019-07-25 | 深圳市奥沃医学新技术发展有限公司 | Positioning method and apparatus, and radiation therapy system |
| WO2019140637A1 (en) * | 2018-01-19 | 2019-07-25 | 深圳市奥沃医学新技术发展有限公司 | Positioning method and apparatus, and radiotherapy system |
| CN110366439A (en) * | 2018-01-19 | 2019-10-22 | 深圳市奥沃医学新技术发展有限公司 | Put position method, apparatus and radiotherapy system |
| CN110366439B (en) * | 2018-01-19 | 2021-09-07 | 深圳市奥沃医学新技术发展有限公司 | Image guidance system, upper computer, radiotherapy system and medium |
| US11684803B2 (en) | 2018-01-19 | 2023-06-27 | Shenzhen Our New Medical Technologies Development Co., Ltd. | Positioning method and apparatus, and radiation therapy system |
| CN109048443A (en) * | 2018-07-25 | 2018-12-21 | 哈尔滨汽轮机厂有限责任公司 | A kind of gas turbine guide vane turnery processing alignment device |
| WO2021012152A1 (en) * | 2019-07-22 | 2021-01-28 | 西安大医集团股份有限公司 | Mask positioning assembly and positioning system |
| CN113271865A (en) * | 2019-07-22 | 2021-08-17 | 西安大医集团股份有限公司 | Facial mask locating component and positioning system |
| CN114199586A (en) * | 2021-11-30 | 2022-03-18 | 东风商用车有限公司 | Special foot model for trample endurance test |
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