CN215876006U - Magnetic resonance radiotherapy integrated equipment - Google Patents
Magnetic resonance radiotherapy integrated equipment Download PDFInfo
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- CN215876006U CN215876006U CN202122229014.9U CN202122229014U CN215876006U CN 215876006 U CN215876006 U CN 215876006U CN 202122229014 U CN202122229014 U CN 202122229014U CN 215876006 U CN215876006 U CN 215876006U
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000001225 therapeutic effect Effects 0.000 abstract description 8
- 238000002595 magnetic resonance imaging Methods 0.000 description 8
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- 230000005855 radiation Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
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- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000003384 imaging method Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
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- 238000002059 diagnostic imaging Methods 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- 230000005865 ionizing radiation Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a magnetic resonance radiotherapy integrated device, which comprises: the C-shaped frame comprises an upper transverse yoke magnetizer and a lower transverse yoke magnetizer, a through hole is formed in the vertical yoke magnet, the upper transverse yoke magnetizer, the lower transverse yoke magnetizer and the vertical yoke magnet form a C-shaped structure, a magnetic shielding cylinder is arranged in the through hole, a rotary cylinder is arranged in the magnetic shielding cylinder, a treatment component is arranged in the rotary cylinder and comprises a supporting plate and a ray emitting device, the ray emitting device is fixed on the supporting plate, a sliding block is arranged on the supporting plate and connected with a sliding rail, the sliding rail is fixed on the inner surface of the rotary cylinder, the supporting plate is connected with a driving device, the rotary cylinder is provided with a first through hole, the magnetic shielding cylinder is provided with a second through hole, and a treatment beam emitted by the ray emitting device can pass through the first through hole and the second through hole. The device realizes double-track focusing, increases the angle of the therapeutic beam emitted by the therapeutic component, and enables the therapeutic scheme to be more optimized.
Description
Technical Field
The utility model relates to the technical field of radiotherapy equipment, in particular to magnetic resonance radiotherapy integrated equipment.
Background
Tumor radiotherapy is a local treatment for tumors using radiation. The radiation includes alpha, beta and gamma rays generated by radioactive isotopes, and x-rays, electron beams, proton beams and other particle beams generated by various x-ray therapeutic machines or accelerators. These rays focus on the abnormal tissue or the pathological tissue to produce focal necrosis or function change, so as to achieve the purpose of treating diseases. About 70% of cancer patients require radiation therapy in the course of treating cancer. The role and position of radiotherapy in tumor treatment are increasingly prominent, and the radiotherapy has become one of the main means for treating malignant tumors.
Radiotherapy apparatus is often used in conjunction with an imaging device such as an MRI, CT or CBCT apparatus to determine the specific location of diseased tissue and hence the target point of the diseased tissue relative to the radiation. MRI (magnetic resonance imaging) is a relatively new medical imaging technique that images human tissue using static and radio frequency magnetic fields, and obtains a sharp image with high contrast without using ionizing radiation or contrast agents during the imaging process. It can reflect the abnormality and early pathological changes of human organs from the interior of human molecules. The MRI main magnet is used for providing a strong static magnetic field, when the magnetic field intensity is 0.35T, good spatial resolution can be obtained, the currently clinically used higher magnetic field intensity is 1.5T, and because the MRI has a strong magnetic field, the strong magnetic field can influence the normal use of other equipment, which causes that the combination of the MRI and the radiotherapy equipment is difficult to realize as integrated equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a magnetic resonance radiotherapy integrated device to solve the problems mentioned in the background technology. In order to achieve the purpose, the utility model provides the following technical scheme: an integrated magnetic resonance radiotherapy apparatus comprising:
the C-shaped frame comprises an upper transverse yoke magnetizer and a lower transverse yoke magnetizer, wherein the upper transverse yoke magnetizer and the lower transverse yoke magnetizer are distributed up and down, a vertical yoke magnet is connected between the upper transverse yoke magnetizer and the lower transverse yoke magnetizer, a through hole is formed in the vertical yoke magnet, the upper transverse yoke magnetizer, the lower transverse yoke magnetizer and the vertical yoke magnet form a C-shaped structure, an upper magnetic pole and a lower magnetic pole are respectively arranged at the lower end of the upper transverse yoke magnetizer and the upper end of the lower transverse yoke magnetizer, and the upper magnetic pole and the lower magnetic pole are arranged in parallel up and down;
the magnetic shielding cylinder is fixedly arranged in the through hole;
the rotary drum is arranged in the magnetic shielding cylinder, the rotary drum and the magnetic shielding cylinder are connected through a bearing, the rotary driving device can drive the rotary drum to rotate in the magnetic shielding cylinder, and a sliding rail is arranged on the inner wall of the rotary drum;
the treatment component is arranged in the rotary drum and driven by the driving device to move on the sliding rail, the treatment component comprises a ray emission device, a first through hole is formed in the end face of the rotary drum, a second through hole is formed in the end face of the magnetic shielding drum, the emission end of the ray emission device corresponds to the first through hole in position, and a treatment beam emitted by the ray emission device can pass through the first through hole and the second through hole.
Preferably, the treatment component further comprises a supporting plate, the ray emission device is fixed on the supporting plate, a sliding block is mounted on the supporting plate, and the sliding block is movably connected with the sliding rail.
Preferably, the driving device comprises a first driving motor and a first speed reducing mechanism which are installed on the supporting plate, the output end of the first speed reducing mechanism is connected with a gear, and the gear is meshed with a toothed plate fixedly installed on the inner surface of the rotary drum.
Preferably, the driving device comprises a motor screw mounted on the rotary drum, the motor screw is connected with the supporting plate, and the motor screw drives the plate to move on the sliding rail.
Preferably, the rotation driving device comprises a gear ring, a second speed reducing mechanism and a second driving motor, the second driving motor is connected with the second speed reducing mechanism, the second speed reducing mechanism is connected with the gear ring in a meshing manner, the gear ring is fixedly arranged on the rotary drum, the second driving motor and the second speed reducing mechanism are fixedly arranged on the magnetic shielding drum, and the second driving motor can drive the rotary drum to rotate along the magnetic shielding drum.
Preferably, the first through holes are elongated through holes distributed in a diameter direction of the end surface of the drum.
Preferably, the bearings are provided in two, one at each end of the drum.
Preferably, the slide rail is equipped with two, is located the pinion rack both sides.
The utility model has the technical effects and advantages that: the device has the advantages that through the through holes are formed in the vertical yoke magnets of the C-shaped frame, magnetic flux is divided into the left path and the right path to bypass the through holes of the vertical yoke magnets when passing through the vertical yoke magnets, a low magnetic field area or a zero magnetic field area is formed in the through holes of the vertical yoke magnets, the treatment component is arranged in the low magnetic field area or the zero magnetic field area in the through holes, the interference of a magnetic field can be avoided, a magnetic shielding cylinder arranged outside the treatment component can shield a small amount of magnetic field in the through holes, the integration of MRI and radiotherapy equipment can be realized, the image guiding and target point positioning accuracy is improved, and the radiotherapy time is shortened; through set up the treatment part that moves along the slide rail in the rotary drum, realized double track way focus, increased the angle that treatment part launches the treatment and restrainted, reduced the injury to patient's normal tissue, internal organs cell, enlarged the selection space of treatment scheme, make the treatment scheme can optimize more.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the C-shaped frame of the present invention;
FIG. 4 is a schematic diagram of the magnetic circuit of the present invention;
fig. 5 is a schematic diagram of the magnetic circuit of the present invention.
In the figure: 1-C type frame, 2-treatment part, 3-rotary drum, 4-magnetic shielding drum, 5-bearing, 6-gear ring, 7-second speed reducing mechanism, 8-second driving motor, 9-toothed plate, 11-upper transverse yoke magnetizer, 12-lower transverse yoke magnetizer, 13-vertical yoke magnet, 14-through hole, 15-upper magnetic pole, 16-lower magnetic pole, 17-moving device, 21-supporting plate, 23-ray emission device, 31-first through hole, 32-sliding rail and 41-second through hole.
Detailed Description
In the description of the present invention, it should be noted that unless otherwise specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.
Example 1
An integrated magnetic resonance radiotherapy apparatus as shown in fig. 1-5, comprising:
the C-shaped frame 1, the C-shaped frame 1 includes an upper horizontal yoke magnetizer 11 and a lower horizontal yoke magnetizer 12, the upper horizontal yoke magnetizer 11 and the lower horizontal yoke magnetizer 12 are distributed up and down, a vertical yoke magnet 13 is connected between the upper horizontal yoke magnetizer 11 and the lower horizontal yoke magnetizer 12, a through hole 14 is opened on the vertical yoke magnet 13, the upper horizontal yoke magnetizer 11, the lower horizontal yoke magnetizer 12 and the vertical yoke magnet 13 form a C-shaped structure, an upper magnetic pole 15 and a lower magnetic pole 16 are respectively arranged at the lower end of the upper horizontal yoke magnetizer 11 and the upper end of the lower horizontal yoke magnetizer 12, the upper magnetic pole 15 and the lower magnetic pole 16 are arranged in parallel up and down, wherein the vertical yoke magnet 13 of the C-shaped frame 1 is provided with the through hole 14, so that magnetic flux passes through the vertical yoke magnet 13 to bypass the through hole 14 of the vertical yoke magnet 13 in left and right ways, and the through the vertical yoke magnet 13 forms a low magnetic field region or a zero magnetic field region in the through hole 14 of the vertical yoke magnet 13;
the magnetic shielding cylinder 4 is fixedly installed in the through hole 14, the rotary drum 3 is arranged in the magnetic shielding cylinder 4, the rotary drum 3 is connected with the magnetic shielding cylinder 4 through a bearing 5, the two bearings 5 are arranged and are respectively positioned at two ends of the rotary drum 3, the rotary drum 3 can rotate in the magnetic shielding cylinder 4, the treatment component 2 is arranged in the rotary drum 3, the treatment component 2 is arranged in a low magnetic field area or a zero magnetic field area in the through hole 14, the interference of a magnetic field can be avoided, and the magnetic shielding cylinder 4 arranged outside the treatment component 2 can shield a small amount of magnetic field in the through hole 14 and prevent the magnetic field from interfering the treatment component 2;
the treatment component 2 comprises a supporting plate 21 and a ray emission device 23, the ray emission device 23 is fixed on the supporting plate 21, a sliding block is installed on the outer side surface of the supporting plate 21, the sliding block is movably connected with a sliding rail 32, the sliding rail 32 is fixed on the inner surface of the rotary drum 3, the sliding rail 32 is arc-shaped and is provided with one or two, the sliding rail is located on the side edge of the toothed plate 9, a first driving motor is installed on the supporting plate 21 and is connected with a first speed reducing mechanism, the output end of the first speed reducing mechanism is connected with a gear, the gear is meshed with the toothed plate 9, the first driving motor can be meshed with the toothed plate 9 through the gear, the supporting plate 21 is driven to carry the ray emission device 23 to move along the sliding rail 32, a first through hole 31 is formed in the end surface of the rotary drum 3, a second through hole 41 is formed in the end surface of the magnetic shielding drum 4, and the emission end of the ray emission device 23 corresponds to the first through hole 31, the therapeutic beam emitted by the ray emission device 23 can pass through the first through hole 31 and the second through hole 41, the therapeutic beam emitted by the ray emission device 23 is one of alpha rays, beta rays, gamma rays, x rays, electron beams and proton beams, the first through hole 31 is a long and narrow through hole which is distributed along the diameter direction of the end surface of the rotary drum 3 and is consistent with the movement direction of the ray emission device 23, the therapeutic beam emitted by the ray emission device 23 when moving can always pass through the first through hole 31, the rotary drum 3 is fixedly provided with a gear ring 6, the gear ring 6 is meshed with a second speed reduction mechanism 7, the second speed reduction mechanism 7 is connected with a second driving motor 8, the second driving motor 8 and the second speed reduction mechanism 7 are fixedly arranged on the magnetic shielding drum 4, and the second driving motor 8 can drive the second speed reduction mechanism 7 to be meshed with the gear ring 6, thereby driving the drum 3 to rotate along the magnetic shield cylinder 4.
Example 2
An integrated magnetic resonance radiotherapy apparatus as shown in fig. 1-5, comprising:
the C-shaped frame 1, the C-shaped frame 1 includes an upper horizontal yoke magnetizer 11 and a lower horizontal yoke magnetizer 12, the upper horizontal yoke magnetizer 11 and the lower horizontal yoke magnetizer 12 are distributed up and down, a vertical yoke magnet 13 is connected between the upper horizontal yoke magnetizer 11 and the lower horizontal yoke magnetizer 12, a through hole 14 is opened on the vertical yoke magnet 13, the upper horizontal yoke magnetizer 11, the lower horizontal yoke magnetizer 12 and the vertical yoke magnet 13 form a C-shaped structure, an upper magnetic pole 15 and a lower magnetic pole 16 are respectively arranged at the lower end of the upper horizontal yoke magnetizer 11 and the upper end of the lower horizontal yoke magnetizer 12, the upper magnetic pole 15 and the lower magnetic pole 16 are arranged in parallel up and down, wherein the vertical yoke magnet 13 of the C-shaped frame 1 is provided with the through hole 14, so that magnetic flux passes through the vertical yoke magnet 13 to bypass the through hole 14 of the vertical yoke magnet 13 in left and right ways, and the through the vertical yoke magnet 13 forms a low magnetic field region or a zero magnetic field region in the through hole 14 of the vertical yoke magnet 13;
the magnetic shielding cylinder 4 is fixedly installed in the through hole 14, the rotary drum 3 is arranged in the magnetic shielding cylinder 4, the rotary drum 3 is connected with the magnetic shielding cylinder 4 through a bearing 5, the two bearings 5 are arranged and are respectively positioned at two ends of the rotary drum 3, the rotary drum 3 can rotate in the magnetic shielding cylinder 4, the treatment component 2 is arranged in the rotary drum 3, the treatment component 2 is arranged in a low magnetic field area or a zero magnetic field area in the through hole 14, the interference of a magnetic field can be avoided, and the magnetic shielding cylinder 4 arranged outside the treatment component 2 can shield a small amount of magnetic field in the through hole 14 and prevent the magnetic field from interfering the treatment component 2;
the treatment component 2 comprises a supporting plate 21 and a ray emitting device 23, the ray emitting device 23 is fixed on the supporting plate 21, a sliding block is mounted on the outer side surface of the supporting plate 21, the sliding block is movably connected with a sliding rail 32, the sliding rail 32 is fixed on the inner surface of a rotary drum 3, the sliding rail 32 is arc-shaped and is provided with one or two sliding rails which are located on the side edge of a toothed plate 9, a motor lead screw is mounted on the rotary drum 3 and is connected with the supporting plate 21, the motor lead screw drives the supporting plate 21 to carry the ray emitting device 23 to move along the sliding rail 32, a first through hole 31 is formed in the end surface of the rotary drum 3, a second through hole 41 is formed in the end surface of the magnetic shielding drum 4, the emitting end of the ray emitting device 23 corresponds to the first through hole 31 in position, a treatment beam emitted by the ray emitting device 23 can pass through the first through hole 31 and the second through hole 41, and the treatment beam emitted by the ray emitting device 23 is alpha ray, The first through hole 31 is a long and narrow through hole which is distributed along the diameter direction of the end surface of the rotary drum 3 and is consistent with the moving direction of the radiation emitting device 23, so that the therapeutic beam emitted by the radiation emitting device 23 when moving can always pass through the first through hole 31, the rotary drum 3 is fixedly provided with a gear ring 6, the gear ring 6 is engaged with the second speed reducing mechanism 7, the second speed reducing mechanism 7 is connected with the second driving motor 8, the second driving motor 8 and the second speed reducing mechanism 7 are fixedly arranged on the magnetic shielding drum 4, and the second driving motor 8 can drive the second speed reducing mechanism 7 to be engaged with the gear ring 6, so that the rotary drum 3 is driven to rotate along the magnetic shielding drum 4.
The process flow and the working principle of the utility model are as follows: obtaining a first three-dimensional coordinate parameter of a target point to be treated of a patient in advance; moving the patient to a treatment area between the upper magnetic pole 15 and the lower magnetic pole 16 through the moving device 17 according to the first three-dimensional coordinate parameter, and obtaining a second three-dimensional coordinate parameter of a target point to be treated of the patient through the upper magnetic pole 15 and the lower magnetic pole 16 of radiotherapy equipment by using a magnetic resonance imaging technology; calibrating the coordinate position of the target point to enable the first three-dimensional coordinate parameter to be superposed with the second three-dimensional coordinate parameter; according to the second three-dimensional coordinate parameter, the second driving motor 8 drives the second speed reduction mechanism 7 to be meshed with the gear ring 6, so that the rotary drum 3 is rotated to drive the ray emission device 23 to rotate, the driving device drives the ray emission device 23 to move along the slide rail 32, the position of the ray emission device 23 is adjusted, and the ray emission device 23 emits a treatment beam to treat a target spot to be treated of the patient.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (8)
1. An integrated magnetic resonance radiotherapy apparatus, comprising:
the C-shaped frame comprises an upper transverse yoke magnetizer and a lower transverse yoke magnetizer, wherein the upper transverse yoke magnetizer and the lower transverse yoke magnetizer are distributed up and down, a vertical yoke magnet is connected between the upper transverse yoke magnetizer and the lower transverse yoke magnetizer, a through hole is formed in the vertical yoke magnet, the upper transverse yoke magnetizer, the lower transverse yoke magnetizer and the vertical yoke magnet form a C-shaped structure, an upper magnetic pole and a lower magnetic pole are respectively arranged at the lower end of the upper transverse yoke magnetizer and the upper end of the lower transverse yoke magnetizer, and the upper magnetic pole and the lower magnetic pole are arranged in parallel up and down;
the magnetic shielding cylinder is fixedly arranged in the through hole;
the rotary drum is arranged in the magnetic shielding cylinder, the rotary drum and the magnetic shielding cylinder are connected through a bearing, the rotary driving device can drive the rotary drum to rotate in the magnetic shielding cylinder, and a sliding rail is arranged on the inner wall of the rotary drum;
the treatment component is arranged in the rotary drum and driven by the driving device to move on the sliding rail, the treatment component comprises a ray emission device, a first through hole is formed in the end face of the rotary drum, a second through hole is formed in the end face of the magnetic shielding drum, the emission end of the ray emission device corresponds to the first through hole in position, and a treatment beam emitted by the ray emission device can pass through the first through hole and the second through hole.
2. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 1, wherein: the treatment component further comprises a supporting plate, the ray emitting device is fixed on the supporting plate, a sliding block is mounted on the supporting plate, and the sliding block is movably connected with the sliding rail.
3. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 2, wherein: the driving device comprises a first driving motor and a first speed reducing mechanism which are arranged on the supporting plate, the output end of the first speed reducing mechanism is connected with a gear, and the gear is meshed with a toothed plate fixedly arranged on the inner surface of the rotary drum.
4. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 1, wherein: the driving device comprises a motor lead screw arranged on the rotary drum, the motor lead screw is connected with the supporting plate, and the motor lead screw drives the plate to move on the sliding rail.
5. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 1, wherein: the rotation driving device comprises a gear ring, a second speed reducing mechanism and a second driving motor, the second driving motor is connected with the second speed reducing mechanism, the second speed reducing mechanism is meshed with the gear ring to be connected, the gear ring is fixedly installed on the rotary drum, the second driving motor and the second speed reducing mechanism are fixedly installed on the magnetic shielding drum, and the second driving motor can drive the rotary drum to rotate along the magnetic shielding drum.
6. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 1, wherein: the first through holes are elongated and distributed along the diameter direction of the end surface of the rotary drum.
7. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 1, wherein: the bearings are two and are respectively positioned at the two ends of the rotary drum.
8. A magnetic resonance radiotherapy integrated apparatus as claimed in claim 3, wherein: the slide rail is equipped with two, is located the pinion rack both sides.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122229014.9U CN215876006U (en) | 2021-09-15 | 2021-09-15 | Magnetic resonance radiotherapy integrated equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122229014.9U CN215876006U (en) | 2021-09-15 | 2021-09-15 | Magnetic resonance radiotherapy integrated equipment |
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| CN215876006U true CN215876006U (en) | 2022-02-22 |
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| CN202122229014.9U Active CN215876006U (en) | 2021-09-15 | 2021-09-15 | Magnetic resonance radiotherapy integrated equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040877A1 (en) * | 2021-09-15 | 2023-03-23 | 上海翰斯泰医疗科技有限公司 | Magnetic resonance radiotherapy integrated apparatus and radiotherapy method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040877A1 (en) * | 2021-09-15 | 2023-03-23 | 上海翰斯泰医疗科技有限公司 | Magnetic resonance radiotherapy integrated apparatus and radiotherapy method thereof |
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Effective date of registration: 20240430 Address after: 201700, 1st Floor, Building 18, No. 1-14, Lane 388, Kangye Road, Zhujiajiao Town, Qingpu District, Shanghai Patentee after: Shanghai Aikrosi Medical Technology Co.,Ltd. Country or region after: China Address before: 201900 floor 5, building 1, No. 1000, zhenchen Road, Baoshan District, Shanghai (No. 1-2000, block a, No. 1-2000, block B) Patentee before: Shanghai hanstai Medical Technology Co.,Ltd. Country or region before: China |
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