CN109925609B - Single-degree-of-freedom C-arm real-time image system - Google Patents
Single-degree-of-freedom C-arm real-time image system Download PDFInfo
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- CN109925609B CN109925609B CN201711349506.3A CN201711349506A CN109925609B CN 109925609 B CN109925609 B CN 109925609B CN 201711349506 A CN201711349506 A CN 201711349506A CN 109925609 B CN109925609 B CN 109925609B
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- 238000003384 imaging method Methods 0.000 claims abstract description 49
- 230000001360 synchronised effect Effects 0.000 claims description 47
- 238000010859 live-cell imaging Methods 0.000 claims 2
- 206010028980 Neoplasm Diseases 0.000 abstract description 11
- 239000003814 drug Substances 0.000 abstract description 5
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- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000001959 radiotherapy Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
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Abstract
The invention discloses a single-degree-of-freedom C-arm real-time imaging system, which comprises: a base; the sliding rail seat is arranged on the base, is driven by the driving device and moves around the axis of the C-shaped arm on the base; the C-shaped arm is arranged on the slide rail seat, the C-shaped arm is driven by the driving device to rotate around the axis of the C-shaped arm, the C-shaped arm and the slide rail seat rotate in the same direction, and when the slide rail seat rotates to the highest position on the base, one opening end of the C-shaped arm rotates to the lowest point; two sets of imaging systems are arranged on the C-shaped arm, and the beams of the X-ray sources in the two sets of imaging systems are orthogonal. When the novel tumor tissue treatment device is used, the C-shaped arm and the sliding rail seat rotate in the same direction, when the sliding rail seat rotates to the highest position of the base, one opening end of the C-shaped arm rotates to the lowest point, so that 360-degree imaging is realized, the imaging definition is further improved, the treatment angle is increased, the damage to normal tissues is reduced, the medicament acceptance of tumor tissues is also improved, and the treatment effect is further improved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a single-degree-of-freedom C-arm real-time imaging system.
Background
In recent years, with development of radiotherapy technology, requirements on image technology are higher and higher, and a C-arm image system is used as an image positioning means of radiotherapy, so that an important role is played in tracking tumor positions in the radiotherapy process. In an accurate radiotherapy system, an ideal imaging system should have the following characteristics: when a patient is positioned, clear three-dimensional images can be compared, and the tumor form can be clearly identified, so that accurate positioning is realized; in the treatment process, the target area position can be rapidly imaged and tracked for the motion tumor, and the motion compensation is performed, so that the accurate positioning and tracking are realized. As an imaging system in the radiotherapy process, the system should provide enough space for radiotherapy to increase tumor receiving dose and reduce complications of normal tissues. As a three-dimensional imaging system, the system should improve the imaging angle range as much as possible, improve the imaging definition, and further improve the precision of positioning and tracking.
However, in the existing imaging system, although the rotating arm can realize multi-degree-of-freedom motion, the angle range of the imaging system can not reach 360 degrees during imaging, so that the radiation incidence angle range is reduced, the dose absorbed by tumor tissues is reduced, and the treatment effect is further reduced.
In summary, how to provide a single-degree-of-freedom C-arm real-time imaging system to achieve 360 ° imaging, improve imaging definition, and improve the medicament receiving amount and treatment effect of tumor tissue is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a single-degree-of-freedom C-arm real-time imaging system so as to realize 360-degree imaging, improve imaging definition and improve the medicament receiving amount and treatment effect of tumor tissues.
In order to achieve the above object, the present invention provides the following technical solutions:
a single degree of freedom C-arm real-time imaging system comprising:
a base;
the sliding rail seat is arranged on the base, is driven by the driving device and moves around the axis of the C-shaped arm on the base;
the C-shaped arm is arranged on the slide rail seat, the C-shaped arm is driven by the driving device to rotate around the axis of the C-shaped arm, the C-shaped arm and the slide rail seat rotate in the same direction, and when the slide rail seat rotates to the highest position on the base, one opening end of the C-shaped arm rotates to the lowest point;
two groups of imaging systems are arranged on the C-shaped arm, and the light beams of the X-ray sources in the two groups of imaging systems are orthogonal.
Preferably, the driving device comprises a motor assembly, a synchronous pulley and a synchronous belt.
Preferably, the slide rail seat and the C-shaped arm are driven by the same driving motor, the driving motor is fixedly arranged on the slide rail seat, and the C-shaped arm and the base are respectively provided with a first synchronous belt and a second synchronous belt.
Preferably, the device further comprises a first tensioning wheel and a second tensioning wheel, wherein two second tensioning wheels are arranged, one of the second tensioning wheels and the driving motor is located on one side of the second synchronous belt, and the other second tensioning wheel is located on the other side of the second synchronous belt.
Preferably, the driving motor comprises a first driving motor and a second driving motor, the C-shaped arm and the sliding rail seat are controlled by the first driving motor and the second driving motor respectively, the first driving motor drives the C-shaped arm to rotate through a first synchronous belt, and the second driving motor drives the sliding rail seat to rotate through a second synchronous belt.
Preferably, two ends of the first synchronous belt are respectively and fixedly installed at two opening ends of the C-shaped arm, and two ends of the second synchronous belt are respectively and fixedly installed at two ends of the base.
Preferably, the driving motor comprises a motor, a speed reducer connected with the motor, a slide rail seat synchronous pulley and a C-shaped arm synchronous pulley.
Preferably, the driving device comprises a motor assembly, a gear and a toothed ring.
Preferably, the toothed ring comprises a first toothed ring and a second toothed ring, the first toothed ring is arranged on the C-shaped arm, and the second toothed ring is arranged on the base.
Preferably, the C-shaped arm is connected with the sliding rail seat, and the sliding rail seat is connected with the base through a sliding block and a sliding rail.
According to the single-degree-of-freedom C-shaped arm real-time imaging system provided by the invention, the C-shaped arm is arranged on the slide rail seat, the slide rail seat is arranged on the base, the C-shaped arm can be driven by the driving device to rotate around the axis of the C-shaped arm, and the slide rail seat can rotate on the base. In the use, C type arm and slide rail seat rotate towards same direction, and when the slide rail seat rotated the highest department of base, an opening of C type arm rotated to minimum to ensure that the rotation angle of C type arm reaches 270 with the rotation angle of slide rail seat sum at least, thereby make imaging system can realize 360 formation of image when the formation of image, and then improved the definition of formation of image, also improved the medicament acceptance volume of tumour tissue simultaneously, and then improved the treatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a single-degree-of-freedom C-arm real-time imaging system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a single-degree-of-freedom C-arm real-time imaging system according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a single-degree-of-freedom C-arm real-time imaging system according to a third embodiment of the present invention;
FIG. 4 is a schematic diagram of a driving motor in a single-degree-of-freedom C-arm real-time imaging system according to an embodiment of the present invention;
FIG. 5 is a schematic view of a C-arm structure in a single degree of freedom C-arm real-time imaging system according to an embodiment of the present invention;
FIG. 6 is a schematic view of a slide rail seat in a single-degree-of-freedom C-arm real-time imaging system according to an embodiment of the present invention;
FIG. 7 is a schematic view of another angle of the slide rail seat in the single-degree-of-freedom C-arm real-time imaging system according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a base in a single-degree-of-freedom C-arm real-time imaging system according to an embodiment of the present invention.
In the above figures 1-8:
the X-ray detector comprises a C-shaped arm 1, a slide rail seat 2, a base 3, an X-ray source 4, a flat panel detector 5, a driving motor 6, a first driving motor 61, a second driving motor 62, a C-shaped arm synchronous pulley 601, a slide rail seat synchronous pulley 602, a speed reducer 603, a motor 604, a first synchronous belt 7, a second synchronous belt 8, a first tensioning wheel 9, a second tensioning wheel 10, a first toothed ring 11, a second toothed ring 12, a first slide rail 101, a first slide block 201, a second slide block 202 and a second slide rail 301.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a single-degree-of-freedom C-arm real-time imaging system which comprises a C-arm 1, a slide rail seat 2, a base 3 and an imaging system. The C-shaped arm 1 is arranged on the slide rail seat 2, and can rotate around the axis of the slide rail seat 2 under the drive of the driving device, and the slide rail seat 2 is arranged on the base 3 and can move around the axis of the C-shaped arm 1 on the base 3 under the drive of the driving device. When moving, the C-shaped arm 1 and the slide rail seat 2 rotate towards the same direction, and when the slide rail seat 2 rotates to the highest position on the base 3, one opening end of the C-shaped arm 1 rotates to the lowest point. For example, when the slide rail seat 2 moves to the highest position on the left side of the base 3, the opening end on the right side of the C-shaped arm 1 rotates to the lowest point, and the lowest point is specifically the center position of the base 3, as shown in fig. 1, at this time, the sum of the rotation angle of the C-shaped arm 1 and the rotation angle of the slide rail seat 2 can be at least 270 °, so that the imaging angle of the imaging system reaches 360 °.
The imaging system is arranged on the C-shaped arm 1 and comprises two groups, wherein the imaging system specifically comprises an X-ray source 4 and a flat panel detector 5, and the two X-ray sources are respectively positioned at two open ends of the C-shaped arm. When the X-ray source is arranged, the light beams of the two X-ray sources 4 are orthogonal, and the X-ray source is concretely shown in fig. 1 and 5.
In one embodiment of the present application, the driving device includes a motor assembly, a synchronous pulley, and a synchronous belt.
In a preferred embodiment of the present application, the slide rail seat 2 and the C-shaped arm 1 are driven by the same driving motor 6, and the driving motor 6 is fixedly disposed on the slide rail seat 2, and the C-shaped arm 1 and the base 3 are respectively provided with a first synchronous belt 7 and a second synchronous belt 8, which are both open synchronous belts, please refer to fig. 1. The two ends of the first synchronous belt 7 are respectively and fixedly arranged on the two opening ends of the C-shaped arm, and the two ends of the second synchronous belt 8 are respectively and fixedly arranged on the two ends of the base 3. When the imaging device is used, the driving motor 6 moves together with the slide rail seat 2, and in addition, the driving motor 6 drives the C-shaped arm 1 to rotate, so that the C-shaped arm 1 and the slide rail seat 2 achieve the purpose of equidirectional movement, and the purpose of 360-degree imaging is further achieved.
In addition, still include first take-up pulley 9 and second take-up pulley 10, first take-up pulley 9 is used for leading, tensioning first synchronous area 7, makes its stable efficient operation, and second take-up pulley 10 is used for leading and tensioning second synchronous area 8 to make the rotation that the slide rail seat 2 can be stable. Two second tensioning wheels 10 are arranged, one second tensioning wheel 10 and the driving motor 6 are located on one side of the second synchronous belt 8, and the other second tensioning wheel 10 is located on the other side of the second synchronous belt 8, as shown in fig. 2. Preferably, two first tensioning wheels 9 are also provided, and both first tensioning wheels 9 are located on opposite sides of the first synchronous belt 7 from the drive motor 6.
As a preferred embodiment, the present application may also be driven by using two sets of motor assemblies, as shown in fig. 2. Specifically, the driving motor 6 includes a first driving motor 61 and a second driving motor 62, the C-shaped arm 1 is controlled by the first driving motor 61, the slide rail seat 2 is controlled by the second driving motor 62, the first driving motor 61 drives the C-shaped arm 1 to rotate through the first synchronous belt 7, and the second driving motor 62 drives the slide rail seat 2 to rotate through the second synchronous belt 8. At this time, the first drive motor 61 and the second drive motor 62 are both provided on the slide rail seat 2, and the second drive motor 62 and the slide rail seat 2 rotate together. Of course, in this embodiment, a first tensioning wheel 9 and a second tensioning wheel 10 may also be provided to guide and tension the first and second timing belts 7 and 8, respectively. The first timing belt 7 and the second timing belt 8 can be arranged in the manner described in the first embodiment, that is, the two ends of the timing belt are fixedly arranged on the C-arm 1 and the base 3.
Referring to fig. 4, the driving motor 6 specifically includes a motor 604, a reduction gear 603 connected to the motor 604, a slide rail seat synchronous pulley 602, and a C-arm synchronous pulley 601, wherein a first synchronous belt 7 is mounted on the C-arm synchronous pulley 601, and a second synchronous belt 8 is mounted on the slide rail seat synchronous pulley 602.
In another embodiment of the present application, the driving device includes a motor assembly, a gear, and a ring gear.
The toothed ring comprises a first toothed ring 11 and a second toothed ring 12, and the first toothed ring 11 is arranged on the C-arm 1 and the second toothed ring 12 is arranged on the base 3. At this time, the first gear ring 11 and the second gear ring 12 are driven by the first driving motor 61 and the second driving motor 62, respectively, and the first gear and the second gear are provided on the first driving motor 61 and the second driving motor 62, respectively. In this solution, the first drive motor 61 and the second drive motor 62 are both disposed on the slide rail seat 2, and the second drive motor 62 rotates together with the slide rail seat 2.
In addition, the C-shaped arm 1 and the sliding rail seat 2 and the base 3 are connected through sliding blocks and sliding rails. The C-shaped arm 1 is provided with a first sliding rail 101, the slide rail seat 2 is provided with a first sliding block 201 and a second sliding block 202, the base 3 is provided with a second sliding rail 301, the first sliding block 201 is matched with the first sliding rail 101, and the second sliding block 202 is matched with the second sliding rail 301, so that stability in the rotation process is further improved.
According to the single-degree-of-freedom C-shaped arm real-time imaging system provided by the embodiment of the invention, the C-shaped arm 1 is arranged on the slide rail seat 2, the slide rail seat 2 is arranged on the base 3, the C-shaped arm 1 can be driven by the driving device to rotate around the axis of the C-shaped arm, and the slide rail seat 2 can rotate on the base 3. In the use, C type arm 1 and slide rail seat 2 rotate towards same direction, and when slide rail seat 2 rotated the highest department of base 3, an open end of C type arm 1 rotated to minimum to ensure that the rotation angle of C type arm 1 reaches 270 with slide rail seat 2's rotation angle's sum, thereby make image system can realize 360 formation of image when the formation of image, and then improved the definition of formation of image, increased the treatment angle simultaneously, reduced the damage to normal tissue, also improved the medicament acceptance of tumour tissue, and then improved the treatment.
In this specification, various embodiments are described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, so that similar parts between the various embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A single degree of freedom C-arm real-time imaging system, comprising:
a base (3);
the sliding rail seat (2) is arranged on the base (3), and the sliding rail seat (2) is driven by the driving device and moves on the base (3) around the axis of the C-shaped arm;
the C-shaped arm (1) is arranged on the sliding rail seat (2), the C-shaped arm (1) is driven by a driving device to rotate around the axis of the C-shaped arm, the C-shaped arm (1) and the sliding rail seat (2) rotate in the same direction, and when the sliding rail seat (2) rotates to the highest position on the base (3), one opening end of the C-shaped arm (1) rotates to the lowest point;
two groups of imaging systems arranged on the C-shaped arm (1), and the light beams of the X-ray sources (4) in the two groups of imaging systems are orthogonal;
the driving device comprises a motor assembly, a synchronous pulley and a synchronous belt;
the sliding rail seat (2) and the C-shaped arm (1) are driven by the same driving motor (6), the driving motor (6) is fixedly arranged on the sliding rail seat (2), and a first synchronous belt (7) and a second synchronous belt (8) are respectively arranged on the C-shaped arm (1) and the base (3);
the device further comprises a first tensioning wheel (9) and a second tensioning wheel (10), wherein two second tensioning wheels (10) are arranged, one second tensioning wheel (10) and the driving motor (6) are positioned on one side of the second synchronous belt (8), and the other second tensioning wheel (10) is positioned on the other side of the second synchronous belt (8);
two first tensioning wheels (9) are also arranged, and the two first tensioning wheels (9) and the driving motor (6) are located on the opposite sides of the first synchronous belt (7).
2. The single-degree-of-freedom C-arm real-time imaging system according to claim 1, wherein the driving motor (6) comprises a first driving motor (61) and a second driving motor (62), the C-arm (1) and the sliding rail seat (2) are controlled by the first driving motor (61) and the second driving motor (62) respectively, the first driving motor (61) drives the C-arm (1) to rotate through a first synchronous belt (7), and the second driving motor (62) drives the sliding rail seat (2) to rotate through a second synchronous belt (8).
3. The single-degree-of-freedom C-arm real-time imaging system according to claim 1, wherein two ends of the first synchronous belt (7) are fixedly mounted at two open ends of the C-arm (1), and two ends of the second synchronous belt (8) are fixedly mounted at two ends of the base (3).
4. The single degree of freedom C-arm real-time imaging system of claim 1 wherein the drive motor (6) comprises a motor (604), a reduction gear (603) connected to the motor (604), a slide mount timing pulley (602) and a C-arm timing pulley (601).
5. The single degree of freedom C-arm live imaging system of claim 1, wherein the drive means comprises a motor assembly, a gear and a toothed ring.
6. The single degree of freedom C-arm live imaging system of claim 5 wherein the toothed ring comprises a first toothed ring (11) and a second toothed ring (12), and wherein the first toothed ring (11) is disposed on the C-arm (1) and the second toothed ring (12) is disposed on the base (3).
7. The single degree of freedom C-arm real time imaging system of any of claims 1 and 4 to 5, wherein the C-arm (1) is connected to the slide rail base (2) and the slide rail base (2) is connected to the base (3) by a slide block and slide rail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711349506.3A CN109925609B (en) | 2017-12-15 | 2017-12-15 | Single-degree-of-freedom C-arm real-time image system |
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| CN201711349506.3A CN109925609B (en) | 2017-12-15 | 2017-12-15 | Single-degree-of-freedom C-arm real-time image system |
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| CN109925609B true CN109925609B (en) | 2024-03-15 |
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