CN103190925B - X-ray device - Google Patents
X-ray device Download PDFInfo
- Publication number
- CN103190925B CN103190925B CN201210599368.5A CN201210599368A CN103190925B CN 103190925 B CN103190925 B CN 103190925B CN 201210599368 A CN201210599368 A CN 201210599368A CN 103190925 B CN103190925 B CN 103190925B
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- China
- Prior art keywords
- arm
- ray
- ray instrument
- instrument according
- side groove
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- 238000005096 rolling process Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
- A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
An X-ray device has a C-arm mounted to a fastener and pivoted around a rotating point. An X-ray source and an X-ray detector are arranged at the C-arm. The C-arm (4, 14) is rotatable along a circular path, whose radius is the sum of the radius of the C-arm (4, 14) and the half width of the X-ray detector (6). The C-arm is formed in a circle segment-shape.
Description
Technical field
It is being arranged on a support with one, can be around a swivel point rotation the present invention relates to a kind of x-ray instrument
C-arm, an x-ray source and X-ray detector are arranged on above the C-arm.
Background technology
By this style of x-ray instrument, can be from a series of patient body positions shot from different projectional angles
Two-dimensional projection in reappear 3-D view.
The precondition of three-dimensional imaging is typically：One is moved and around a fixed swivel point (rotation along track
Axle) rotation isocentric C-arm.Isocentric to be characterised by, the central beam of X-ray passes through all the time swivel point.But, etc.
The C-arm at center has many shortcomings in terms of mass distribution and based on its of a relatively high weight, therefore, two dimension into
The commonly used non-isocentric C-arm shorter than isocentric C-arm during picture.
Advise a kind of x-ray instrument in DE10003524A1, in the x-ray instrument, in order to by the category in calibration
The position of the C-arm for inside calculating makes a series of two dimensions of a phantom shooting two-dimensional projection, in a calibration mode and throws
Shadow, generates three-dimensional image data sets from two-dimensional projection.
Once introduce in DE102008062030A1, one in an x-ray instrument for including a non-isocentric C-arm
The imaging area of individual target is surround along an elliptical orbit, and the volume area of target is significantly restricted whereby.If it is desired to avoiding
This shortcoming, needs horizontal or vertical mobile C-arm.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of x-ray instrument including non-isocentric C-arm, and the X is penetrated
Line instrument is applied to three-dimensional imaging.
In order to solve above-mentioned technical problem, in the x-ray instrument of type described in this paper forewords according to present invention provide that, C-shaped
Arm can rotate along circular trace, half equivalent to radius and the X-ray detector of C-arm of the radius of the circular trace
Width sum.
In traditional x-ray instrument, only when x-ray instrument has isocentric C-arm, three-dimensional imaging can be just carried out,
But, the C-arm is more significantly larger and heavier than non-isocentric C-arm due to requiring gravitational equilibrium.
The theoretical foundation of the present invention is, if a non-isocentric C-arm is along the circular arc for being different from C-arm
The circular trace rotation of shape, it is also possible to which three-dimensional imaging is completed by the non-isocentric C-arm.Especially require, for C-arm
, more than the radius of C-arm, the radius of circular trace must be equivalent to the radius of C-arm plus X for the radius of the circular trace of rotation
Half width sum of ray detector.If the geometrical condition is satisfied, the central beam of X-ray extends all the time Jing
Cross the swivel point of C-arm.Can be from the generation one in multiple two dimensional images that different projectional angles shoot under the precondition
3-D view, while gravitational equilibrium is ensured.
In the x-ray instrument according to the present invention, it is preferable that C-arm is arranged on a support by a rolling guide.Institute
Stating rolling guide can realize precise control ground rotating C-shaped arm and C-arm is positioned relative to the support of x-ray instrument.
In the x-ray instrument according to the present invention, rolling guide includes side groove, and the part of support is placed in it.At this
In planting version, C-arm surrounds the part of support, thus produces a kind of particularly stable frame for movement.
Another extension design code of the present invention, the side groove in the C-arm is at the center of the C-arm near institute
The medial surface for stating C-arm is arranged and at the outer end of the C-arm near the lateral surface setting of the C-arm.The side
The position of groove can change on the thickness direction of C-arm, and the change in location of groove is following true results, i.e. C-arm and
The circular trace that C-arm is moved along it has different radiuses.The thickness of C-arm, i.e. it is in thickness direction (radial direction)
Extend size and select here and be so that guide rail or side groove are inner and in the outer of the C-arm at the center of the C-arm
End is outer.
In order to improve the operation of the X-ray according to the present invention, it can be stated that C-arm is gravity balance.It is equal by gravity
Weighing apparatus can reduce or eliminate torque, and other counter-measures must be taken if no side.In this respect it can be stated that C-arm exists
There is depression near its outer end.Can realize by this method reducing quality, this has required driving energy aspect
Positive effect.
Gravity balance can be by this way reached in the x-ray instrument according to the present invention, i.e. depression is recessed with the side
Groove is adjoined, and especially depression can be arranged on by the groove of side with through-thickness, wherein, depression is shorter than side groove.
Description of the drawings
Other advantages and details of the present invention will be illustrated by embodiment and accompanying drawing below.
Fig. 1 represents an x-ray instrument according to the present invention；
Fig. 2 represents that the x-ray instrument shown in Fig. 1 is in the second position；
Fig. 3 represents that the x-ray instrument shown in Fig. 1 is in the 3rd position；
Fig. 4 represents the C-arm and X-ray central beam of the x-ray instrument according to the present invention；
Fig. 5 to Fig. 7 represents the cross section of C-arm shown in Fig. 1；And
Fig. 8 to Figure 10 represents the cross section of the C-arm of another embodiment.
Specific embodiment
X-ray instrument 1 shown in Fig. 1 includes a C being arranged on support 2, can surrounding swivel point 3 (rotary shaft) rotation
Shape arm 4, an x-ray source 5 and an X-ray detector 6 are arranged in the C-arm.One X-ray central beam 7 is penetrated from X
Line source 5 extends to X-ray detector 6.
C-arm 4 is that the rolling guide 8 being not illustrated in detail by is fixed on support 2.C-arm 4 can by rotation
With into different positions, such that it is able to make the two dimensional image of a check object respectively.Subsequently can be single using these
Two dimensional image make 3-D view.
The C-arm 4 that Fig. 2 shows produce from position shown in Fig. 1 along clockwise direction after x-ray instrument, with it is such this, Fig. 3
Show C-arm 4 along inverse clockwise direction produce from position shown in Fig. 1 after x-ray instrument in.There it can be seen that and C-arm
Independently, X-ray central beam 7 is all the time through the swivel point 3 of C-arm 4 for 4 positions at that time.Therefore, the x-ray instrument 1 have with
One x-ray instrument identical performance comprising isocentric C-arm.Due to its moulding, the C-arm 4 of x-ray instrument 1 is not in grade
The heart, but, by the special design structure of guide rail it is achieved that X-ray central beam 7 is all the time through the swivel point of C-arm 4
3.Therefore, it can subsequently make 3-D view using two dimensional image single, in C-arm 4 in diverse location shooting.
Fig. 4 is shown, no matter C-arm 4 is in where, X-ray central beam 7 is all the time through the revolution of C-arm 4
Point 3, therefore, substituting an isocentric C-arm can use a non-isocentric C-arm.But, it is isocentric with one
C-arm is compared, and non-isocentric C-arm has advantage in terms of weight.
The guide rail of the C-arm 4 on support 2 is explained below.Figure 1 illustrates a circular arc in C-arm 4
9, what the circular arc was illustrated is the position of a groove, and movement is guided on support 2 by C-arm 4 described in the groove.In FIG may be used
To find out, circular arc 9 extends at the center of C-arm 4 near its medial surface.X-ray source 5 and X-ray detection are provided with C-arm 4
The circular arc 9 extends near the lateral surface of C-arm 4 at the outer end of device 6.
Fig. 5 to Fig. 7 is shown the cross-sectional view of C-arm 4.Fig. 5 is shown to show along the cutting open for V-V lines shown in Fig. 4
The profile for going out, correspondingly, Fig. 6 is shown that the profile and Fig. 7 that are shown cut away along line VI -- VI are shown along figure
The profile that VII-VII lines shown in 4 is shown cut away.
The cross section substantially c-shaped of the C-arm 4 shown in Fig. 5, what is be arranged in parallel with the interlude 10 of C-arm 4 is side
Groove 11, in installment state when rolling guide in the side groove, can be revolved by C-arm 4 described in the rolling guide
It is supported on support 2 with turning.In Figure 5, side groove 11 adjoins the interlude 10.
Fig. 6 is shown the profile that C-arm 4 is shown cut away along V-VI lines.Side groove 11 and the side groove shown in Fig. 5
It is identical, but, side groove 11 is located at a different position in the profile shown in Fig. 6, i.e. near center.It is corresponding to this
Ground, interlude 12 than Fig. 5 in corresponding interlude 10 it is wide.
Fig. 7 is shown the profile that C-arm 4 is shown cut away along VII-VII lines.There, side groove 11 is located at outside
Near.Correspondingly, the corresponding interlude 12 during interlude 13 is than Fig. 6 is wide.
The effect that can be reached by the different radial position of side groove 11 is, although the radius of circular arc C-arm is less than
The radius of rotary motion, but x-ray source 5, X-ray detector 6 and and then X-ray central beam 7 extends through all the time C-shaped
The swivel point 3 of arm 4.Because position of the rolling guide 7 in C-arm 4 can change, the rotation of non-isocentric C-arm 4 can be with
It is converted into isocentric rotation.Can especially clearly find out in the figure 7, move equivalent to along a circular trace rotation
Turn, the radius of the circular trace is equivalent to the radius of C-arm and half width sum of X-ray detector 6.
Fig. 8, Fig. 9 and Figure 10 are shown the cross section of the C-arm 14 of second embodiment, shown cross section such as Fig. 5 to Fig. 7
Shown in cross section equally be in identical position.C-arm has optimal distribution of weight.
The C-arm 14 that figure 8 illustrates is in terms of shape of cross section corresponding to the cross section of the C-arm 4 shown in Fig. 5.
As can be seen that C-arm 14 has a depression 15 in Fig. 9, the depression is between the interlude 16 of side groove 11 and C-arm 14
Formed.Substantially rectangular depression 15 is shorter than side groove 11.The quality of C-arm 14 and the torque for occurring are able to by depression 15
Reduce.
Finally, in Fig. 10 as can be seen that the width of the depression 15 near the outer end of C-arm 14 is more than institute in Fig. 9
Width in the cross-sectional view for illustrating.The gross weight of C-arm 14 is minimized by depression 15, and thus operate and drive also becomes
Simply.
Although being described in detail to the present invention by the preferred embodiment, the present invention and therefore office
It is limited to the disclosed embodiments, without departing from protection scope of the present invention, this area professional person can also therefrom derive
Other flexible programs.
Claims (8)
1. a kind of x-ray instrument, visits with C-arm that is rack-mount, can surrounding swivel point rotation, x-ray source and X-ray
Survey device to be arranged in the C-arm, it is characterised in that and the C-arm (4,14) can rotate along circular trace, the circle
The radius of track equivalent to the C-arm (4, half width sum of radius 14) and the X-ray detector (6).
2. x-ray instrument according to claim 1, it is characterised in that and the C-arm (4,14) it is substantially designed as circular arc
Shape.
3. x-ray instrument according to claim 1, it is characterised in that and the C-arm (4,14) it is arranged on by rolling guide
On support (2).
4. x-ray instrument according to claim 3, it is characterised in that the rolling guide (8) is including side groove (11), institute
The part for stating support (2) is placed in the side groove.
5. x-ray instrument according to claim 4, it is characterised in that the C-arm (4,14) in side groove (11) in institute
State C-arm (4, center 14) near the C-arm (4, medial surface 14) arrange and the C-arm (4, outer end 14)
Near the C-arm, (4, lateral surface 14) is arranged at portion.
6. the x-ray instrument according to any one of aforementioned claim 1 to 5, it is characterised in that the C-arm (4,14) be
Gravity balance.
7. the x-ray instrument according to aforementioned claim 4 or 5, it is characterised in that and the C-arm (4,14) in its outer end
Nearby there is at least depression (15).
8. x-ray instrument according to claim 7, it is characterised in that the depression (15) is adjacent with the side groove (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011088392.4A DE102011088392B4 (en) | 2011-12-13 | 2011-12-13 | X-ray machine |
| DE102011088392.4 | 2011-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103190925A CN103190925A (en) | 2013-07-10 |
| CN103190925B true CN103190925B (en) | 2017-04-12 |
Family
ID=48464452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210599368.5A Active CN103190925B (en) | 2011-12-13 | 2012-12-13 | X-ray device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103190925B (en) |
| DE (1) | DE102011088392B4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109009194A (en) * | 2018-07-24 | 2018-12-18 | 北京唯迈医疗设备有限公司 | A kind of movement technique of C-arm x-ray machine three-dimensional imaging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052036A (en) * | 1990-04-02 | 1991-09-24 | Grady John K | X-ray stand with laterally inclined rotation axis |
| DE10153787B4 (en) * | 2001-10-31 | 2005-04-14 | Ziehm Imaging Gmbh | Mobile surgical X-ray diagnostic device with a C-arm |
| DE102010021657A1 (en) * | 2010-05-26 | 2011-12-01 | Siemens Aktiengesellschaft | Guide structure for guiding C-arm shaped retention device of robot used in medical system, has guide rollers which are arranged under preset angle with respect to cross-section sides along edges of retention device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19961094B4 (en) * | 1999-12-17 | 2006-05-24 | Siemens Ag | Device with an adjustable carrying device |
| DE10003524B4 (en) | 2000-01-27 | 2006-07-13 | Siemens Ag | Mobile X-ray device and method for the determination of projection geometries |
| DE102008062030A1 (en) | 2008-12-12 | 2010-06-17 | Siemens Aktiengesellschaft | Arrangement and method for positioning objects to be imaged |
-
2011
- 2011-12-13 DE DE102011088392.4A patent/DE102011088392B4/en active Active
-
2012
- 2012-12-13 CN CN201210599368.5A patent/CN103190925B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5052036A (en) * | 1990-04-02 | 1991-09-24 | Grady John K | X-ray stand with laterally inclined rotation axis |
| DE10153787B4 (en) * | 2001-10-31 | 2005-04-14 | Ziehm Imaging Gmbh | Mobile surgical X-ray diagnostic device with a C-arm |
| DE102010021657A1 (en) * | 2010-05-26 | 2011-12-01 | Siemens Aktiengesellschaft | Guide structure for guiding C-arm shaped retention device of robot used in medical system, has guide rollers which are arranged under preset angle with respect to cross-section sides along edges of retention device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011088392A1 (en) | 2013-06-13 |
| CN103190925A (en) | 2013-07-10 |
| DE102011088392B4 (en) | 2019-12-12 |
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| C10 | Entry into substantive examination | ||
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Effective date of registration: 20220129 Address after: Erlangen Patentee after: Siemens Healthineers AG Address before: Munich, Germany Patentee before: SIEMENS AG |