CN108905004B - Control panel for particle therapy system - Google Patents
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- CN108905004B CN108905004B CN201810755706.7A CN201810755706A CN108905004B CN 108905004 B CN108905004 B CN 108905004B CN 201810755706 A CN201810755706 A CN 201810755706A CN 108905004 B CN108905004 B CN 108905004B
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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
- A61N5/1048—Monitoring, verifying, controlling systems and methods
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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
- A61N5/1048—Monitoring, verifying, controlling systems and methods
- A61N2005/1074—Details of the control system, e.g. user interfaces
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Abstract
The invention provides a control panel for a particle therapy system, which comprises an starting module for starting the particle therapy system, a display module for displaying a particle beam dosage value and an operating state of the particle therapy system, and a control module for controlling the transition of the state of the particle therapy system, wherein the control module is connected with the starting module and the display module in a communication way. The particle therapy system can be started by one key, is simple to operate, can automatically complete particle beam therapy on a patient, and improves the safety guarantee of the patient.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a control panel for a particle therapy system.
Background
With the increasing incidence of tumor, researchers have diligently studied advanced tumor treatment methods, and the prominent advantages of the particle-based tumor treatment are made to stand out in a plurality of treatment methods. During treatment, a doctor needs to provide a beam request to an accelerator operator according to a treatment plan of a patient, the accelerator operator enables the particle beam to meet clinical requirements by adjusting parameters, and the particle beam is transmitted to a treatment terminal. The whole beam distribution process is realized by the fact that doctors and accelerator operators communicate through telephones and the accelerator operators manually switch beams.
The heavy ion accelerator is a high-tech physical experiment device with a very complex structure, the operation process is also complex, the process of accelerating the particle beam to meet the clinical requirement needs to be completed by professional accelerator operators, and if the operation is performed by medical professionals, the operation is very difficult and easy to make mistakes, which brings huge risks to treatment.
Disclosure of Invention
To overcome at least one aspect of the above problems, an embodiment of the present invention provides a control panel for a particle therapy system, the control panel including: the particle therapy system comprises an activation module for activating the particle therapy system, a display module for displaying a particle beam dose value and an operating state of the particle therapy system, and a control module for controlling a transition of the state of the particle therapy system, the control module being communicatively connected with the activation module and the display module.
According to some embodiments, the start module comprises: a first control switch for transitioning the particle therapy system from a power-down state to a standby state; and a second control switch for one-touch release of the particle beam.
According to some embodiments, a display module comprises: a first particle beam dose display unit for displaying a predetermined dose value of the particle beam; the second particle beam dosage display unit is used for displaying the real-time dosage value of the particle beam; and the working state display unit comprises a plurality of light-emitting diodes and is used for displaying the working state of the particle therapy system, wherein the second particle beam dosage display unit is refreshed once every preset time.
According to some embodiments, the first particle beam dose display unit and the second particle beam dose display unit each comprise a plurality of nixie tubes, and the number of nixie tubes of the first particle beam dose display unit and the second particle beam dose display unit is the same.
According to some embodiments, the control module comprises: the initialization unit is used for initializing the control panel; and a verification unit for confirming whether the particle beam can be released.
According to some embodiments, the control module further comprises: an automatic positioning control unit for automatically determining a predetermined position of the patient relative to a therapy head of the particle therapy system.
According to some embodiments, the control module further comprises: a motion control unit for moving the patient to a predetermined position.
According to some embodiments, the control module further comprises: and an X-ray photographing control unit for controlling the X-ray photographing apparatus to move to a photographing position.
According to some embodiments, the control module further comprises: and a beam pause control unit for temporarily stopping and resuming the release of the particle beam.
According to some embodiments, the control module further comprises: an emergency stop control unit for stopping operation of the particle therapy system in an emergency state.
According to some embodiments, the control panel further comprises a buzzer, the buzzer sounding at a first frequency when releasing the particle beam, the buzzer sounding at a second frequency after the emergency stop unit stops operation of the particle therapy system.
Compared with the prior art, the invention has the following advantages: the starting module is arranged to control the starting of the particle therapy system, one-key starting therapy is realized, the heavy ion accelerator is not required to be operated by an accelerator physical professional, the operation is simple, and errors are not easy to occur.
Drawings
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Fig. 1 is a schematic structural diagram of a control panel for a particle therapy system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an activation module for a control panel of a particle therapy system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display module of a control panel for a particle therapy system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a control module of a control panel for a particle therapy system according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of external connections for a control panel of a particle therapy system, according to an embodiment of the present invention;
fig. 6 is a schematic view of the internal structure of a control panel for a particle therapy system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The invention provides a control panel for a particle therapy system, which can start the therapy system by one key and has simple operation, safety and reliability. The control panel provided by the invention can also receive instructions and data of the particle therapy system, display the therapy state and the particle dosage value, can pause the particle beam in the therapy process, can emergently stop the particle therapy system in an emergency situation, can remotely control the motion equipment in the therapy room, and returns all information of the control panel to the particle therapy system.
The following detailed description of the invention refers to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a control panel according to an embodiment of the present invention. As shown in fig. 1, the control panel comprises an activation module 1 for activating the particle therapy system, a display module 2 for displaying a beam dose value and an operating state of the particle therapy system, and a control module 3 communicatively connected to the activation module 1 and the display module 2, the control module 3 being configured to control a transition of a state of the particle therapy system.
Fig. 2 is a schematic structural diagram of the starting module 1 according to an embodiment of the present invention. As shown in fig. 2, the starting module 1 comprises a first control switch 11 and a second control switch 12, wherein the first control switch 11 is used for making the particle therapy system transition from a power-down state to a standby state, and the second control switch 12 is used for releasing the particle beam in a one-key mode.
The power-down state of the particle therapy system means that the particle therapy system is powered off, all components of the particle therapy system are in a locked state, that is, when the particle therapy system is in the power-down state, no operation can be performed on the particle therapy system. The standby state of the particle therapy system means a state in which the particle therapy system can be operated at any time when the power is turned on. The operational state of the particle therapy system refers to a state in which the particle therapy system is operated. The second control switch 12 can release the particle beam by one key, that is, the particle beam can be released only by starting the second control switch 12 without operating an accelerator, which is convenient and fast.
Fig. 3 is a schematic structural diagram of the display module 2 according to the embodiment of the present invention. The display module 2 includes a first particle beam dose display unit 21 for displaying a predetermined dose value of the particle beam, a second particle beam dose display unit 22 for displaying a real-time dose value of the particle beam, and an operating state display unit 23, where the operating state display unit 23 includes a plurality of light emitting diodes 231 for displaying an operating state of the particle therapy system, and the plurality of light emitting diodes may be the same or different, and the second particle beam dose display unit 22 is refreshed once every predetermined time.
The predetermined dose value of the particle beam is obtained by analyzing the state of illness of the patient, and is input to the control panel by the particle therapy system and displayed on the first particle beam dose display unit 21. In order to facilitate the understanding of the real-time particle beam dose value during the actual irradiation process, the second particle beam dose display unit 22 is provided, and the real-time particle beam dose value can be easily understood by looking at the numbers displayed on the second particle beam dose display unit 22. The second particle beam dose display unit 22 is refreshed at predetermined intervals, for example, 10ms, to update the latest real-time particle beam dose value, and the treatment system collects data each time the value is refreshed. In order to be able to obtain more accurate real-time particle beam dose values, the predetermined time may be set smaller. The plurality of light emitting diodes are used for displaying the working states of the particle therapy system and the control panel, each state corresponds to one or more light emitting diodes, when the particle therapy system and the control panel are in a certain working state, the corresponding light emitting diodes are lightened, and other light emitting diodes are extinguished, so that the working states of the particle therapy system and the control panel can be clearly seen.
According to a preferred embodiment, the first particle beam dose display unit 21 and the second particle beam dose display unit 22 each comprise a plurality of nixie tubes, and the number of the nixie tubes of the first particle beam dose display unit 21 and the second particle beam dose display unit 22 is the same, for example, 9, and may be increased or decreased according to actual requirements. The nixie tube is cheap and the display effect is good, so the nixie tube is a good choice for displaying the dose value of the particle beam. The number of nixie tubes of the first particle beam dose display unit 21 and the second particle beam dose display unit 22 is set to be the same, so that the operator can observe the dose value of the particle beams conveniently, and the manufacturing process is simplified.
Fig. 4 is a schematic structural diagram of the control module 3 according to the embodiment of the present invention. As shown in fig. 4, the control module 3 comprises an initialization unit 31 for initializing the particle therapy system and a verification unit 32 for confirming whether the particle beam can be released.
The initialization function of the control panel is mainly to clear the second particle beam dose display unit 22, if the initialization is not performed, the treatment system may be used by the patient before, the data already exists on the second particle beam dose display unit 22, the treatment is continued under the condition that the previous data is accumulated, and the real-time dose value of the displayed particle beam is inaccurate, so that the treatment effect is seriously affected. The irradiation of the particle beam has a certain influence on the human body, and the position outside the target body receives as little irradiation as possible, so that before releasing the particle beam, a series of verification processes are carried out, such as confirming whether the patient is at a preset position, whether the treatment head is effective, and the like, and only after all the verification is passed, the particle beam can be released. If a verification fails, the beam is not allowed to be released, which may protect the patient.
According to a preferred embodiment, the control module 3 further comprises an automatic positioning control unit 33 for automatically determining a predetermined position of the patient relative to the therapy head of the particle therapy system. Thus, the accurate positioning of the patient can be realized, and the treatment effect is greatly improved.
According to a preferred embodiment, the control module 3 further comprises a motion control unit 34 for moving the patient to a predetermined position. The motion control unit 34 moves the patient to a predetermined position by controlling the position of the couch.
According to a preferred embodiment, the control module 3 further comprises an X-ray camera control unit 35 for controlling the movement of the X-ray camera device to the shooting position. Thus, the target area information of the patient can be clearly known through the X-ray photographing device, so that the treatment is more targeted.
According to a preferred embodiment, the control module 3 further comprises a beam pause control unit 36 for temporarily stopping and resuming the release of the particle beam. During the treatment of the patient, there may be some special situations that require the suspension of the particle beam, at which the particle beam may be temporarily stopped being released by the beam suspension control unit 36, and after the special situations are solved, the particle beam may be resumed being released by the beam suspension control unit 36.
According to a preferred embodiment, the control module 3 further comprises an emergency stop control unit 37 for stopping the operation of the particle therapy system in an emergency state. During the treatment of the patient, an emergency situation may occur at some time, for example, an abnormality occurs in the particle therapy system, and at this time, the operation of the particle therapy system needs to be stopped by the emergency stop control unit 37, so as to protect the patient.
According to a preferred embodiment, the control panel for a particle therapy system according to the present invention may further comprise a buzzer, which sounds at a first frequency when the particle beam is released, and which sounds at a second frequency after the emergency stop unit stops the operation of the particle therapy system. The buzzer sounds when the beam is released to provide information to the operator and patient that the beam is being released, and may also alert others to stay out of the way. When the buzzer is in an emergency state, the buzzer makes a sound to remind all the particle therapy systems of being in an abnormal state. The buzzer adopts two sounds with different frequencies, so that people can clearly know the state of the particle therapy system.
Fig. 5 is an external connection diagram of the control panel a according to an embodiment of the present invention. As shown in fig. 5, a particle therapy system controller B, a couch C, X, a radiographic apparatus D, a dose delivery system E, and a particle beam flow control switch F are connected to the outside of the control panel a. The control panel a may receive instructions and data from the particle therapy system controller B, the data being, for example, a predetermined dosage value of the particle beam; the control panel A can control the treatment bed C to enable the patient to be at a preset position; the control panel A can move to a shooting position by controlling the X-ray photographic device D; the control panel A can count the real-time dosage value of the particle beam by controlling the dosage distribution system E; the control panel a can decide whether to release the beam by controlling the beam flow control switch F.
Fig. 6 is an internal structure diagram of a control panel according to an embodiment of the present invention. As shown in fig. 6, the control panel includes a main board 4 and an interface board 5, the main board 4 is used for controlling various devices on the control panel, and the interface board 5 is used for communicating information with other systems. The main board 4 includes a first control chip 41 and a second control chip 42, the second control chip 42 receives the instruction of the first control chip 41 to control the first particle beam dose display unit 21 and the second particle beam dose display unit 22, and other devices on the control panel are directly controlled by the first control chip 41. The interface board 5 includes a single chip 51 and a third control chip 52, the first control chip 41 will transmit a control instruction to the third control chip 52, and information can be transmitted between the single chip 51 and the third control chip 52.
The various states of the control panel are further described below in conjunction with fig. 6.
Under normal conditions, the states of the control panel are as follows: the device comprises a power-off state, a standby state, a preset state, a positioning verification state, a preparation state, a treatment head effective state, a beam-out state and a treatment ending state.
A power-down state: all devices of the control panel are in a power-off state, and all modules of the control panel are locked at the moment and cannot be operated. In this state, the light emitting diode in the operation state display unit 23 is also in the off state.
Standby state: the first control switch 11 is turned on, the light emitting diode L1 corresponding to the standby state in the operation state display unit 23 is turned on, the lock of the initialization unit 31 and the emergency stop control unit 37 is released, and the particle therapy system can acquire the state by waiting for further operation. The concrete implementation is as follows: the first control chip 41 processes the standby state signal and passes the standby state information to the third control chip 52.
The preset state is as follows: the particle therapy system is registered, and the light emitting diode L2 corresponding to the preset state in the operation state display unit 23 is turned on, and L1 is turned off. The concrete implementation is as follows: the first control chip 41 monitors the status and processes the preset status signal.
Positioning state: after the particle therapy system confirms the patient information, the motion control unit 34 and the automatic positioning control unit 33 are unlocked. The concrete implementation is as follows: the first control chip 41 processes the positioning status signal, and sends a signal relay _ out7 for releasing the motion control unit 34, the automatic positioning control unit 33 is turned on and then feeds the status back to the particle therapy system, and the particle therapy system sends the motion command and parameters of the therapeutic bed to move the therapeutic bed to the predetermined position.
Positioning a verification state: after the positioning of the particle therapy system is completed, the verification unit 32 and the radiography control unit 35 are unlocked, and the motion control unit 34 and the automatic positioning control unit 33 are locked. The concrete implementation is as follows: the first control chip 41 processes the positioning verification status signal, and sends a signal relay _ out0 for releasing the radiography control unit 35, the verification unit 32 feeds back the status to the particle therapy system after being opened, and the particle therapy system sends a motion command and parameters of the radiography device to move the radiography device to a predetermined position. This state needs to be performed twice in succession, with the particle therapy system pop-window confirming between the two, and the verification unit 32 and the radiography control unit 35 locked before the confirmation is not made. When the verification is successful and no other operation is performed, the treatment system is in an idle state, the ITS initialization button is unlocked, and when the ITS initialization button is started, a clear signal relay _ out4 or relay _ out5 is transmitted into a corresponding dosage distribution system controller according to the current treatment head.
A preparation state: the particle therapy system loads treatment plan data, lights up the light emitting diode L3 corresponding to the preparation state in the working state display unit 23, turns off the L2, the dose distribution system displays the preset particle dose value, clears the current value and locks the X-ray photography control unit 35 and the verification unit 32. The concrete implementation is as follows: the first control chip 41 directly controls the L3 to light up, the particle therapy system writes preset values into the dosage delivery system controller and clears the current values of the dosage delivery system, and the first control chip 41 gives a dosage delivery system clear signal delay _ out4 or delay _ out5 to the dosage delivery system controller.
The effective state of the treatment head is as follows: the particle therapy system opens the beam brake, lights the light emitting diode L4 corresponding to the effective state of the therapy head in the working state display unit 23, closes the L3, and releases the locking of the second control switch 12. The concrete implementation is as follows: the particle therapy system reads the beam lock opening signal and the first control chip 41 processes the therapy head valid status signal.
A beam-out state: when the second control switch 12 is pressed, the light emitting diode L5 corresponding to the beam output state in the operation state display unit 23 is turned on, the buzzer sounds at the first frequency, the second control switch 12 is locked, a signal is sent to the dose distribution system, and the beam pause control unit 36 is released. The concrete implementation is as follows: the control panel sends a beamable signal to the dose delivery system, and the particle therapy system refreshes the dose delivery system particle real-time dose value display on the control panel every 10 ms.
Treatment end state: when the preset treatment time is reached or the preset dosage value is reached, the treatment is ended, L4, L5 and the buzzer are closed, the beam current pause control unit 36 is locked, and the beam current is stopped. The concrete implementation is as follows: the first control chip 41 processes the end-of-treatment status signal, deactivating the beam-possible signal to the dosage delivery system.
At this point, a complete process is finished, and of course, in the process of treatment, there are some special cases, for example, there is an emergency situation that the treatment needs to be stopped, at this time, the emergency stop control unit 37 in the control panel may be started, the light emitting diode L6 corresponding to the emergency state in the working state display unit 23 is turned on, other light emitting diodes are turned off, the buzzer sounds at the second frequency, the prohibition signal is sent to the particle beam flow control switch, the dosage delivery system also sends the prohibition signal to the particle beam flow control switch, all the modules are locked, and the emergency stop signal is sent to all the moving devices, such as the X-ray photographing device and the treatment couch. The concrete implementation is as follows: the first control chip 41 sends out a prohibition signal TTL _ out0 to the beam control switch, an emergency stop signal relay _ out1 to the X-ray imaging apparatus, and an emergency stop signal relay _ out6 to the couch. The treatment system is in an interlocked state when the beam is not stopped normally, where "stop normally" means stopping not according to a predetermined program, i.e. not reaching a predetermined treatment time or dose.
In addition, sometimes the emergency may not be so serious, or the operation needs to be suspended for other reasons, the beam can be suspended by starting the beam suspension control unit only by temporarily stopping the beam output, and when the beam output is required to be performed again, the beam output can be continued by starting the beam suspension control unit again. This state is also achieved by the first control chip 41 issuing or deactivating a disable signal to the beam flow control switch.
The particle therapy system is in communication connection with the control panel, the therapy system comprises a write register and a read register, the reserved space of the write register and the read register is 40 bits, namely forty bits, and each bit in the write register and the read register has different meanings, which is described in detail in tables 1 and 2.
TABLE 1 therapeutic System write register data definition
For example, for the 0 bit, if either the clear signal delay _ out4 or delay _ out5 is passed into the dose delivery system controller, a "1" is shown on the 0 bit indicating that it is now in an idle state, otherwise a "0" is shown on the 0 bit indicating that it is not now in an idle state. For positions 12 to 15, "0001" is displayed if the horizontal treatment head of treatment room No. 1 is used, "0010" is displayed if the horizontal treatment head of treatment room No. 2 is used, and "1111" is displayed if there is no treatment head in fact. The display of other bits is similar.
TABLE 2 therapeutic System read register data definition
For example, for the 0 bit, if the first control switch is in the on state, "1" is displayed, otherwise, "0" is displayed, for the 9-12 bits, "0001" is displayed if the horizontal treatment head of treatment room No. 1 is used, "0010" is displayed if the horizontal treatment head of treatment room No. 2 is used, and "1111" is displayed if there is no treatment head in fact. The display of other bits is similar.
The particle therapy system can receive instructions and data of the particle therapy system, display therapy states and dose readings on the display module, start beam current by one key, pause beam current when an accident occurs in the therapy process, even stop the operation of the particle therapy system emergently, and remotely control the motion equipment in the therapy room to return all panel information to the particle therapy system.
The invention adopts a scheme of Field Programmable Gate Array (FPGA) and singlechip control. The FPGA realizes that the bottom logic strictly ensures the execution time; the FPGA logic is executed on a hardware level, so that the accuracy is ensured; the reconfigurable characteristic of the FPGA enables the function modification and upgrading to be easy; the singlechip completes resource management and external interface, so that the development difficulty of the equipment is reduced, the development period is shortened, and the realization of complete functions is ensured.
The invention can start the treatment by one key, namely release the particle beam by one key control, avoids the trouble of operating the accelerator to accelerate the particles by professional accelerator operators, and has simple operation, safety and reliability.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A control panel for a particle therapy system, comprising:
the starting module is used for starting the particle therapy system and comprises a first control switch and a second control switch, wherein the first control switch is used for enabling the particle therapy system to be converted into a standby state from a power-off state, the particle therapy system is powered off in the power-off state, all components of the particle therapy system are in a locking state, and the particle therapy system is powered on in the standby state and can be operated at any time; the second control switch is used for releasing the particle beam in a key mode;
the display module is used for displaying the particle beam dosage value and the working state of the particle therapy system; and
a control module, communicatively connected to the start module and the display module, for controlling a transition of a state of the particle therapy system, the control module including an automatic positioning control unit for automatically determining a predetermined position of a patient with respect to a treatment head of the particle therapy system, a motion control unit for moving the patient to the predetermined position, and an radiography control unit for controlling an radiography apparatus to move to a photographing position;
the control module further comprises:
a beam pause control unit for temporarily stopping and resuming the release of the particle beam;
an emergency stop control unit for stopping operation of the particle therapy system in an emergency state.
2. The control panel for a particle therapy system according to claim 1, wherein said display module comprises:
a first particle beam dose display unit for displaying a predetermined dose value of the particle beam;
the second particle beam dosage display unit is used for displaying the real-time dosage value of the particle beam; and
an operating state display unit including a plurality of light emitting diodes for displaying an operating state of the particle therapy system,
wherein the second particle beam dose display unit is refreshed once every predetermined time.
3. The control panel for a particle therapy system according to claim 2, wherein said first particle beam dose display unit and said second particle beam dose display unit each comprise a number of nixides, the number of nixides of said first particle beam dose display unit and said second particle beam dose display unit being the same.
4. The control panel for a particle therapy system according to claim 1, wherein said control module comprises:
the initialization unit is used for initializing the control panel; and
a verification unit for confirming whether the particle beam can be released.
5. The control panel for a particle therapy system according to claim 1, further comprising a buzzer that sounds at a first frequency when releasing the particle beam, said buzzer sounds at a second frequency after said emergency stop control unit stops operation of said particle therapy system.
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