CN110960807A - Medical linear accelerator system - Google Patents
Medical linear accelerator system Download PDFInfo
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- CN110960807A CN110960807A CN201911235160.3A CN201911235160A CN110960807A CN 110960807 A CN110960807 A CN 110960807A CN 201911235160 A CN201911235160 A CN 201911235160A CN 110960807 A CN110960807 A CN 110960807A
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- linear accelerator
- guide structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1092—Details
- A61N2005/1097—Means for immobilizing the patient
Abstract
The embodiment of the invention discloses a medical linear accelerator system, which comprises: the medical linear accelerator device comprises a medical linear accelerator device and a treatment bed, wherein the treatment bed comprises a base and a bed plate, the bed plate moves on the base through a first moving piece, and a first channel for the bed plate to move is limited by the medical linear accelerator device along the horizontal direction; the inner wall of first passageway is provided with first guide structure and the second moving member that can move on first guide structure, the bed board can be connected and move on first guide structure with first moving member separation and second moving member, through setting up first moving member on the base, and set up first guide structure and the second moving member that can move on first guide structure on the inner wall of the first passageway of medical accelerator equipment injecture, when making the treatment bed move to first passageway direction, the bed board both ends can keep the level through the support that first moving member and second moving member provided, the sunken not enough of treatment bed has been overcome, thereby therapeutic effect has been improved.
Description
Technical Field
The embodiment of the invention relates to the field of medical equipment, in particular to a medical linear accelerator system.
Background
A medical linear accelerator system (RT) is a main Treatment means of current external radiotherapy, and before or during radiotherapy for a patient, various medical imaging devices are required to monitor a tumor and a normal organ in real time so as to adjust the irradiation of X-rays in real time according to the change of the tumor position, so that the Radiation field of the X-rays closely "follows" a target area, the tumor position is accurately irradiated, and the purpose of radiotherapy focus in the true sense is achieved.
However, the length of the bed plate of the existing treatment bed is not consistent with that of the bed body, so that one side of the treatment bed is likely to sink when a patient is positioned on the treatment bed, and the scanning or treatment effect is poor.
Therefore, in the existing medical linear acceleration system, the treatment bed sinks to cause poor treatment effect.
Disclosure of Invention
The embodiment of the invention provides a medical linear accelerator system and a treatment couch movement control method, which aim to overcome the defect of sinking of a treatment couch and improve the treatment effect.
The embodiment of the invention provides a medical linear accelerator system, which comprises: the medical linear accelerator device comprises a medical linear accelerator device and a treatment bed, wherein the treatment bed comprises a base and a bed plate, the bed plate moves on the base through a first moving member, and a first channel for the bed plate to move is limited by the medical linear accelerator device along the horizontal direction; the inner wall of the first channel is provided with a first guide structure and a second moving member capable of moving on the first guide structure, and the bed plate can be separated from the first moving member, connected with the second moving member and moved on the first guide structure.
The medical linear accelerator system comprises medical linear accelerator equipment and a treatment bed, wherein the treatment bed comprises a base and a bed plate, the bed plate moves on the base through a first moving part, and a first channel for the bed plate to move is limited by the medical linear accelerator equipment along the horizontal direction; the inner wall of first passageway is provided with first guide structure and can the second moving member that first guide structure went up the removal, the bed board can with first moving member separation and with the second moving member is connected and is in move on the first guide structure, through set up first moving member on the base to and set up first guide structure and the second moving member that can move on first guide structure on the inner wall of the first passageway that medical accelerator equipment limited, when making the treatment bed remove to first passageway direction, the bed board both ends can keep the level through the support that first moving member and second moving member provided, have overcome the sunken not enough of treatment bed, thereby have improved treatment.
Drawings
Fig. 1a is a schematic structural diagram of a medical linear accelerator system according to an embodiment of the present invention;
fig. 1b is a schematic structural diagram of another medical linear accelerator system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a medical linear accelerator system according to a second embodiment of the present invention;
fig. 3a is a schematic structural diagram of a medical linear accelerator system according to a third embodiment of the present invention;
fig. 3b is a schematic diagram of the movement of a bed plate of a medical linear accelerator system according to a third embodiment of the present invention;
fig. 3c is a schematic diagram of the movement of the bed plate of another medical linear accelerator system according to the third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1a is a schematic structural diagram of a medical linear accelerator system according to a first embodiment of the present invention. As shown in fig. 1a, the medical linear accelerator system includes: a medical linear accelerator apparatus 10 and a treatment couch 20, wherein:
the treatment couch 20 includes a base 210 and a couch top 220, the couch top 220 is moved on the base 210 by a first moving member 211, and the medical linear accelerator apparatus 10 defines a first passage 110 in a horizontal direction for movement of the couch top; the inner wall of the first channel 110 is provided with a first guide structure 111 and a second moving member 112 movable on the first guide structure 111, and the bed plate can be separated from the first moving member 211 and connected with the second moving member 112 and moved on the first guide structure 111. Alternatively, the first guide structure 111 may be a slide rail, and the first moving member 211 and the second moving member 112 may be sliders.
In order to make the patient be located the bed board and not sink when carrying out radiotherapy treatment on the bed board, guarantee treatment, in this embodiment, through set up first moving member on the base plate, and set up first guide structure and second moving member in the first passageway of medical linear accelerator equipment, make the patient be located the bed board, bed board both ends homoenergetic is effectively supported when the treatment bed removes along first passageway direction, because patient's weight causes bed board one end to sink when having avoided the patient to be located the bed board, thereby avoided the bed board to sink and influenced treatment.
On the basis of the scheme, at least one connecting piece is arranged on the bed plate and used for fixedly connecting the bed plate with the first moving piece. Optionally, a connecting piece is arranged on the bed plate and used for fixedly connecting the bed plate with the first moving key, so that the first moving piece can drive the bed plate to move. Illustratively, the engagement member may be a latch or a keyhole. Correspondingly, when the linking piece is the hasp, can set up the lockhole that uses with the hasp cooperation on the first moving member, when the linking piece is the lockhole, can set up the hasp that uses with the lockhole cooperation on the first moving member. Preferably, in order to enable the fixing and/or the movement of the bed board to be controlled by commands, the lock catch can be an electric lock catch.
On the basis of the scheme, the connecting piece comprises a lock hole, a first lock catch is arranged on the first moving piece, and when the lock hole is locked by the first lock catch, the bed plate is fixedly connected with the first moving piece. In one embodiment, the connecting piece on the bed plate can be set as a lock hole, the first moving member is provided with a first lock catch matched with the lock hole, when the lock hole is locked with the first lock catch, the bed plate is fixedly connected with the first moving member, namely, the first moving member can drive the bed plate to move.
Optionally, the first moving member is further provided with a first motor, and the system further includes a control module, configured to generate a first driving instruction according to the received instruction, and send the first driving instruction to the first moving member, so that the first motor drives the bed plate to move on the base. Alternatively, a first motor may be provided on the first moving member. A control module is arranged in the medical linear accelerator system, and drives a first motor to rotate through the control module so as to drive a first moving member to move, and further drive a bed plate connected with the first moving member to move. Alternatively, the first moving member may be a slider driven by a stepping motor. Illustratively, when the control module detects an instruction input by a user, a first driving instruction is generated according to the detected instruction, the first driving instruction is sent to the first moving part, and a first motor in the first moving part is driven to rotate so as to drive the bed plate to move. Optionally, the instruction input by the user may be a bed board movement instruction.
In an embodiment of the present invention, the at least one connector includes a first connector and a second connector, the first connector is configured to be fixedly connected to the first moving member, the second connector is configured to be fixedly connected to the second moving member, and the control module is further configured to: and when the fact that the position relation between the second joint piece and the second moving piece meets the locking condition is detected, the second moving piece and the second joint piece are controlled to be locked. Preferably, two connecting pieces can be arranged on the bed plate and are respectively and fixedly connected with the first moving piece and the second moving piece. The first driving instruction sent by the control module is received after the first moving member and the first linking member are locked, the bed plate is driven to move towards the second moving member until the position relation between the second linking member and the second moving member meets the locking condition, and when the control module detects that the position relation between the second linking member and the second moving member meets the locking condition, the locking instruction is sent to the second moving member to control the locking of the lock catch in the second moving member and the lock hole in the second linking member. Optionally, the locking condition may be that the distance that the bed board moves is a preset distance, or the time that the bed board moves is a preset time, and a sensor may also be provided on the second moving member, and when the lock catch on the second moving member is aligned with the vertical direction of the lock hole on the second linking member, the sensor located on the second moving member detects that the position relationship between the second linking member and the second moving member satisfies the locking condition. When the locking condition is that the distance for moving the bed plate is a preset distance or the time for moving the bed plate is preset time, the control module can determine the locking time when the position relation between the second connecting piece and the second moving piece meets the locking condition according to the preset distance or the preset time, and when the locking time is up, the second moving piece and the second connecting piece are directly controlled to be locked. When the position relation between the second connecting piece and the second moving piece meets the locking condition or not and needs to be detected by the sensor on the second moving piece, the control module can judge when to send a locking instruction according to a signal sent by the second moving piece.
On the basis of the above scheme, the control module is further configured to: after the second moving member and the second connecting piece are locked, an unlocking instruction is sent to the first moving member to release the locking state of the first moving member and the first connecting piece. Optionally, after the second moving member and the second connecting member are locked, the bed plate can be driven to move together by the first moving member and the second moving member, the bed plate can also be driven to move only by the second moving member, and when the bed plate is driven to move only by the second moving member, the locking state of the first moving member and the first connecting member needs to be released. Optionally, after the second moving member and the second linking member are locked, the second moving member may send a locked signal to the control module, and after the control module receives the locked signal sent by the second moving member, the control module sends an unlocking instruction to the first moving member to control the first moving member and the first linking member to release the locked state.
On the basis of the above scheme, a second motor is further arranged on the second moving assembly, and the control module is further configured to: and sending a second driving instruction to the second moving member to enable the second motor to drive the bed plate to slide along the first guide structure until the position of the bed plate meets the preset scanning condition. Optionally, a second motor may be further disposed on the second moving member, that is, the second moving member may also be a slider driven by the stepping motor, and the second motor is driven by the control module to rotate so as to drive the second moving member to move, thereby driving the bed plate connected to the second moving member to move. When the second connecting piece is fixedly connected with the second moving piece, the control module sends a second driving instruction to the second moving piece, so that the second moving piece moves according to the received second driving instruction, and the bed plate is driven to move.
Fig. 1b is a schematic structural diagram of another medical linear accelerator system according to an embodiment of the present invention. As shown in fig. 1b, the bedplate 220 is provided with a first connector 221 and a second connector 222. Illustratively, the engaging member 221 and the engaging member 222 may be lock holes, the first moving member 211 is provided with a lock catch cooperating with the engaging member 221, and the second moving member 112 is provided with a lock catch cooperating with the engaging member 222. When the first connecting piece 221 and the first moving piece 211 are locked, the first moving piece is fixedly connected with the bed plate and can drive the bed plate to move, and when the second connecting piece 222 and the second moving piece 112 are locked, the second moving piece is fixedly connected with the bed plate and can drive the bed plate to move.
Illustratively, if the initial state of the couch plate is that the first connecting piece 221 is fixedly connected with the first moving piece 211, when a patient on the couch plate needs to be moved to a target position, a doctor can click or press a driving button to trigger an instruction, the control module generates a first driving instruction after detecting a user triggering instruction, and sends the first driving instruction to the first moving piece 211, the first moving piece 211 drives the couch plate to move towards the second moving piece 112 after receiving the first driving instruction, when the position relation between the second connecting piece 222 and the second moving piece 112 meets a locking condition, the control module sends a locking instruction to the second moving piece 112 to control the second moving piece 112 and the second connecting piece 222 to be locked, and sends a locked signal to the control module after the second connecting piece 222 and the second moving piece 112 are locked, the control module receives a locked signal sent by the second moving piece 222, an unlocking instruction is sent to the first moving member 211, the first moving member 211 and the first connecting member 221 are unlocked according to the received unlocking instruction, an unlocked signal is sent to the control module, the control module sends a second driving signal to the second moving member 112 after receiving the unlocked signal sent by the first moving member 211, and the second moving member 112 drives the bed board to move according to the received second driving signal until the target position is reached.
Example two
Fig. 2 is a schematic structural diagram of a medical linear accelerator system according to a second embodiment of the present invention, which is further optimized based on the above embodiments.
As shown in fig. 2, on the basis of the above embodiment, the medical linear accelerator system further includes an imaging device 30, the imaging device 30 defining a second channel 310 in a horizontal direction for moving the table; a second guide structure 311 is disposed on an inner wall of the second channel 310, and the bed board can move on the second guide structure 311. The first guiding structure 111 may be connected with the second guiding structure 311 end to end, and the first guiding structure 111 may also be unconnected with the second guiding structure 311. When the first guide structure 111 and the second guide structure 311 are connected end to end, the first guide structure 111 and the second guide structure 311 may be the same slide rail, and the bed board can move on the second guide structure 311 through the second moving member 112. When the first guide structure 111 and the second guide structure 311 are disconnected, a third moving member needs to be disposed on the second guide structure 311, so that the top board can be separated from the second moving member 112 and connected to the third moving member, and the top board can move on the second guide structure 311 through the third moving member. Wherein 312 denotes a CT scan slice.
In order to improve the radiotherapy precision, the medical accelerator system of the imaging device is integrated, the integrated medical accelerator system realizes the integrated fusion of the imaging device and the radiotherapy device, and high-definition images are obtained through the imaging device so as to guide the improvement of the radiotherapy precision. However, in the process of performing radiotherapy by using the conventional integrated medical accelerator system, when the radiotherapy state is switched to the imaging state, in order to avoid collision between the electron portal imaging device and the base of the treatment couch, the system frame needs to be rotated by 90 ° or 270 ° from the current angle, the treatment couch needs to be moved into the scanning aperture of the imaging device until reaching the scanning position, after the scanning is finished, the treatment couch is moved back to the original position, and then the frame is rotated to the initial angle. In order to solve the technical problem of complex operation when integrated medical accelerator system mode switches among the prior art, can set up first guide structure on the first passageway inner wall of medical linear accelerator equipment respectively, set up second guide structure on imaging device's second passageway inner wall, drive the bed board through first guide structure and second guide structure and remove, the bed body volume that needs the removal when making the mode switch bed body remove reduces, thereby need not rotatory frame, the length of treatment bed has also been shortened greatly simultaneously.
As shown in fig. 2, when the integrated medical accelerator system is in the radiotherapy mode, the first engaging member 221 on the bed plate 220 is fixedly connected with the first moving member 211 on the base 210, and when the integrated medical accelerator system is in the imaging mode, the second engaging member 222 on the bed plate 220 is fixedly connected with the second moving member 112 on the first guiding structure. When the integrated medical accelerator system needs to be converted from a radiotherapy mode to an imaging mode, only the first moving member 211 needs to be controlled to drive the bed plate to move towards the second moving member 112, when the position relation between the second moving member 112 and the second connecting piece 222 meets the locking condition, the second moving member 112 and the second connecting piece 222 are controlled to be locked, then the locking state of the first moving member 211 and the first connecting piece 221 is released, and the second moving member 112 is controlled to drive the bed plate to move towards the target position. When the integrated medical accelerator system needs to be switched back to the radiotherapy mode from the imaging mode, only the second moving member 112 needs to be controlled to drive the bed plate to move towards the first moving member 211, when the position relation between the first moving member 211 and the first connecting piece 221 meets the locking condition, the first moving member 211 and the first connecting piece 221 are controlled to be locked, then the locking state of the second moving member 112 and the second connecting piece 222 is released, and the first moving member 211 is controlled to drive the bed plate to move towards the target position.
The technical scheme of this embodiment, through setting up the treatment bed into the separable state of bed board and base, set up first guide structure on the first passageway inner wall of medical linear accelerator equipment respectively, set up second guide structure on imaging device's second passageway inner wall, it removes to drive the bed board through first guide structure and second guide structure, the bed body volume that needs the removal when making the mode switch bed body remove reduces, thereby need not rotatory frame, on overcoming the sunken basis of treatment bed, the removal process of treatment bed when having simplified integrated medical equipment mode switch, treatment effect has been improved.
EXAMPLE III
Fig. 3a is a schematic structural diagram of a medical linear accelerator system according to a third embodiment of the present invention. The present embodiment provides a preferred embodiment based on the above-described embodiments. The present embodiment takes a medical accelerator system CT-RT integrated with a Computed Tomography (CT) imaging device as an example to describe a medical linear accelerator system.
As shown in fig. 3a, the CT-RT system includes a medical linear accelerator device 30, a treatment couch 40, and an imaging device 50. The medical linear acceleration device 30 is horizontally defined with a first channel 310 for the movement of the bed plate 420, the imaging device 50 is horizontally defined with a second channel 510 for the movement of the bed plate 420, and is provided with a slide rail 313, the slide rail 313 is located on the inner wall of the first channel 310 and the inner wall of the second channel 510, the slide rail 313 is provided with a slide block 312 driven by a stepping motor, and the slide block 312 is provided with a lock catch. 511 denotes a CT scan layer. In addition, the two ends of the sliding rail 313 are respectively provided with a first roller 311 and a second roller 512 for supporting and assisting the movement of the bed plate 420. The treatment couch 40 comprises a base 410 and a couch plate 420, a slider 411 driven by a stepping motor is arranged on the base 410, a lock catch is arranged on the slider 411, and a lock hole 421 and a lock hole 422 are arranged on the couch plate 420. When the lock hole 421 is locked with the lock catch on the slide block 411, the bed plate 420 is fixedly connected with the slide block 411, and when the lock hole 421 is unlocked with the lock catch on the slide block 411, the bed plate 420 is separated from the slide block 411. When the lock hole 422 is locked with the lock catch on the slide block 312, the bed plate 420 is fixedly connected with the slide block 312, and when the lock hole 422 is unlocked with the lock catch on the slide block 312, the bed plate 420 is separated from the slide block 312.
In the radiotherapy mode (RT mode), the slide block 411 is locked with the locking hole 421, and the movement of the bed plate 420 is controlled by the slide block 411. When the RT mode needs to be converted into the CT mode, the bed plate 420 is driven by the slider 411 to move in the direction of the slider 312, the bed plate 420421 contacts the first roller 311 and continues to move with the aid of the first roller 311, and when the locking hole 422 is aligned with the slider 312, the bed plate 420 stops moving, controls the locking hole 422 to be locked with the slider 312, and controls the locking hole 421 to be unlocked with the slider 411. Fig. 3b is a schematic diagram of movement of a bed plate of a medical linear accelerator system according to a third embodiment of the present invention. As shown in fig. 3b, after the locking hole 422 is locked with the slider 312, the locking hole 421 is unlocked with the slider 411. After the lock hole 421 is unlocked from the slide block 411, the bed plate 420 continues to move forward from the belt of the slide block 312, contacts the second roller 512, and continues to move with the assistance of the second roller 512 until reaching the CT scanning position. Fig. 3c is a schematic diagram of the movement of the bed plate of another medical linear accelerator system according to the third embodiment of the present invention. As shown in fig. 3c, the couch top 420 reaches the CT scan position, and the couch top 420 is supported by the slide block 312 and the second roller 512. After the CT mode scanning is completed, the above steps are performed in reverse, and the table 420 returns to the initial position.
The CT-RT equipment provided by the embodiment of the invention adopts a separable design of the bed board and the bed body, so that the treatment bed can be shorter, the longer horizontal movement range is ensured, and the requirement on the size of a machine room is greatly reduced. When the patient is switched from the RT state to the CT state, the base does not need to move, so that the machine frame does not need to rotate to 90 degrees or 270 degrees, the machine frame can be switched at any angle, and the treatment speed is accelerated. And the guide rail is arranged in the CT aperture to support the bed plate, thereby avoiding the sinking problem of the treatment bed in long stroke.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A medical linear accelerator system, comprising: the medical linear accelerator device comprises a medical linear accelerator device and a treatment bed, wherein the treatment bed comprises a base and a bed plate, the bed plate moves on the base through a first moving member, and a first channel for the bed plate to move is limited by the medical linear accelerator device along the horizontal direction; the inner wall of the first channel is provided with a first guide structure and a second moving member capable of moving on the first guide structure, and the bed plate can be separated from the first moving member, connected with the second moving member and moved on the first guide structure.
2. The medical linear accelerator system according to claim 1, wherein the bed plate is provided with at least one engaging member for fixedly connecting the bed plate with the first moving member.
3. The medical linear accelerator system as claimed in claim 2, wherein the coupling member comprises a locking hole, the first moving member is provided with a first locking catch, and when the locking hole is locked with the first locking catch, the bed plate is fixedly connected with the first moving member.
4. The medical linear accelerator system of claim 3, wherein the first moving member is further provided with a first motor, and the system further comprises a control module configured to generate a first driving command according to the received command, and send the first driving command to the first moving member so that the first motor drives the bed plate to move on the base.
5. The medical linear accelerator system of claim 4, wherein the at least one engagement member comprises a first engagement member and a second engagement member, the first engagement member configured to be fixedly coupled to the first moving member, the second engagement member configured to be fixedly coupled to the second moving member, the control module further configured to:
and when the fact that the position relation between the second joint piece and the second moving piece meets the locking condition is detected, the second moving piece and the second joint piece are controlled to be locked.
6. The medical linear accelerator system of claim 5, wherein the control module is further configured to:
after the second moving member and the second connecting piece are locked, an unlocking instruction is sent to the first moving member to release the locking state of the first moving member and the first connecting piece.
7. The medical linear accelerator system of claim 6, wherein the second moving assembly further comprises a second motor, and the control module is further configured to:
and sending a second driving instruction to the second moving member to enable the second motor to drive the bed plate to slide along the first guide structure until the position of the bed plate meets the preset scanning condition.
8. The medical linear accelerator system of claim 1, further comprising an imaging device defining a second channel in a horizontal direction for movement of the couch plate; the inner wall of the second channel is provided with a second guide structure, and the bed board can move on the second guide structure.
9. The medical linear accelerator system of claim 8, wherein the first guide structure is end-to-end with the second guide structure.
10. The medical linear accelerator system according to claim 8, wherein the second guide structure is provided with a third moving member movable on the second guide structure, and the bed plate is separable from the second moving member and connected with the third moving member and movable on the second guide structure.
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| US20150069790A1 (en) * | 2013-09-06 | 2015-03-12 | Aisin Seiki Kabushiki Kaisha | Sunroof apparatus for vehicle |
| CN104444396A (en) * | 2014-11-04 | 2015-03-25 | 广西大学 | Separation device for detaching and stacking stamped sheet metal |
| CN205019602U (en) * | 2015-09-10 | 2016-02-10 | 井笛 | Attached positioner of spiral fault radiation therapy system treatment bed |
| CN205181368U (en) * | 2015-11-17 | 2016-04-27 | 广东中能加速器科技有限公司 | Medical electron linear accelerator and positive electrography technique all -in -one |
| CN105496689A (en) * | 2015-12-02 | 2016-04-20 | 张合明 | Movement trajectory achieving method of medical bed with patient transfer function |
| CN105919617A (en) * | 2016-06-15 | 2016-09-07 | 北京大基康明医疗设备有限公司 | Method for positron emission tomography (PET) intra-operative implementation and device thereof |
| CN107137084A (en) * | 2017-06-20 | 2017-09-08 | 上海联影医疗科技有限公司 | Scanning system |
| CN107752351A (en) * | 2017-11-24 | 2018-03-06 | 李自辉 | A kind of mathematical education computer desktop expanding device |
| CN209529930U (en) * | 2018-12-26 | 2019-10-25 | 上海交通大学医学院附属新华医院 | Make the auxiliary equipment of spiral-fault radiation therapeutic systematic treating bed holding level |
| CN109435499A (en) * | 2018-12-27 | 2019-03-08 | 广州市贝云科技有限公司 | The mobile device of jet printer and its spray head |
| CN209650698U (en) * | 2018-12-29 | 2019-11-19 | 深圳市智汇牛科技有限公司 | Connect dish device |
| CN110237440A (en) * | 2019-05-28 | 2019-09-17 | 玛西普医学科技发展(深圳)有限公司 | A kind of clinac therapeutic device |
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