Detailed Description
The technical scheme of the present invention is described in more detail below in connection with the specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The present application provides a radiation therapy device, as illustrated in fig. 3, comprising: the device comprises a frame 1, a cantilever 2 and a treatment head 3, wherein the cantilever 2 comprises a connecting end 22 and a free end 21, the connecting end 22 of the cantilever 2 is connected with the frame 1, and the free end 21 of the cantilever 2 is connected with the treatment head 3. As shown in fig. 3, the radiotherapy apparatus further comprises a support means 5, the support means 5 being arranged between the free end 21 and the connection end 22 of the cantilever 2 and being connected to the cantilever 2 and/or the treatment head 3.
In fig. 3, the cantilever 2 is taken as an example to directly extend out of the frame 1. For example, as shown in fig. 4, the cantilever 2 may also be an "L" -shaped arm, and in fig. 4, the cantilever 2 and the frame 1 may be fixedly connected by means of a connecting device 6. Of course, the cantilever 2 may be a "C" -shaped arm, etc., and the specific structure and shape of the cantilever are not limited in the present application, and only the example shown in fig. 3 will be described in detail.
In the present application, the support device 5 is connected to the cantilever 2 and/or the treatment head 3, and the support device 5 may be connected to the cantilever 2, or the support device 5 may be connected to the treatment head 3, or the support device 5 may be connected to both the cantilever 2 and the treatment head 3.
By way of example, if the support device 5 is connected to the cantilever 2, since the support device 5 is located between the free end 21 and the connection end 22 of the cantilever 2, the support device 5 can further provide the support force for the cantilever 2, thereby preventing the therapeutic head 3 from sagging, avoiding the problem of causing an isocenter offset, ensuring the equipment accuracy and ensuring the therapeutic effect. Specifically, as shown in fig. 3, the arm of force from the treatment head 3 to the supporting device 5 is a first force arm L1, and the arm of force from the treatment head 3 to the connecting end 22 is a second force arm L2, because the supporting device 5 is disposed between the free end 21 and the connecting end 22 of the cantilever 2, the first force arm L1 is smaller than the second force arm L2, and the acting force of the treatment head 3 to the cantilever 2 is smaller under the supporting action of the supporting device 5, thereby preventing the sagging of the treatment head, avoiding the problem of isocentric offset, ensuring the equipment precision and ensuring the treatment effect.
For example, if the support device 5 is connected to the treatment head 3, the support device may directly support the treatment head to prevent the treatment head 3 from sagging, and at this time, the force arm of the treatment head 3 to the support device 5 may be approximately zero as the first force arm L1.
The present application provides a radiation therapy apparatus comprising: the device comprises a frame, a cantilever and a treatment head, wherein the cantilever comprises a connecting end and a free end, the connecting end of the cantilever is connected with the frame, and the free end of the cantilever is connected with the treatment head. The radiation therapy equipment also comprises a supporting device, wherein the supporting device is arranged between the free end and the connecting end of the cantilever and is connected with the cantilever and/or the therapy head, and the supporting device can bear the weight of the therapy head, so that the problem of isocentric deviation caused by sagging of the radiation therapy equipment in the use process is avoided, the equipment precision is ensured, and the therapy effect is ensured.
In the present application, the treatment head may be an accelerator, a treatment head formed of a radioisotope (e.g., cobalt-60), a proton treatment head, or the like, and the present application is not limited to the treatment head. And the radiation therapy device provided by the application can comprise one or more treatment heads (such as two or three treatment heads, etc.), the figures of the application are detailed by taking the example that the radiation therapy device comprises one treatment head. The radiotherapy apparatus of the present application may further include other components, etc., and the present application is not particularly limited to the other components, but only components related to the present application will be described.
The radiation therapy device provided by the application, as shown in fig. 5, further comprises a treatment couch 4, the support means 5 comprising an opening 51, the treatment couch 4 being movable through the opening 51. In fig. 5, taking the example that the treatment couch 4 includes a couch plate 41 and a couch frame 42, the couch frame 42 supports the couch plate 41 and may be driven such that the couch plate 41 moves, specifically, the couch plate 41 moves in the 101 direction through the opening 51 so as to pass through the opening 51. As shown in fig. 5, it is thus possible that when treating a body tumor with a radiation therapy device, the head of the human body may be passed through the opening 51 in order to locate and treat the body tumor.
According to the radiotherapy equipment provided by the application, as shown in fig. 6, the cantilever 2 can drive the treatment head 3 to rotate along the rotation axis 11; the support device 5 includes: the support 53 and the rotator 52, the support 53 is fixed relative to the frame 1, the rotator 52 is connected with the cantilever 2 and/or the treatment head 3, and the rotator 52 can rotate along the rotation axis 11 relative to the support 53.
It should be noted that, the cantilever may drive the treatment head to rotate along the rotation axis, and as shown in fig. 1, the cantilever 2 may drive the treatment head 3 to rotate about the rotation axis 11, specifically, the treatment head 3 rotates about the radial direction of the human body, so that the radiation beam passes through different areas of the human body to irradiate on the tumor, thereby avoiding the damage of local skin and organs caused by concentrated irradiation.
The rotating body 52 is connected to the cantilever 2 and/or the treatment head 3, and the rotating body 52 may be connected to the cantilever 2, or the rotating body 52 may be connected to the treatment head 3, or the rotating body 52 may be connected to the cantilever 2 and the treatment head 3.
In the present application, the supporting means 5 comprises: the support frame 53 and the rotator 52, the rotator 52 can rotate along the rotation axis 11 relative to the support frame 53, and the rotator 52 is connected with the cantilever 2 and/or the treatment head 3, so that when the cantilever 2 drives the treatment head 3 to rotate along the rotation axis 11, the rotator 52 can synchronously rotate with the cantilever 2, thereby supporting the treatment head in the rotation process, preventing the treatment head 3 from sagging and avoiding the problem of isocentric offset, ensuring the equipment precision and ensuring the treatment effect.
In the case where the support means comprises a support frame and a rotator, the support frame may comprise a large opening and the rotator may comprise a small opening, whereby the treatment couch may be moved through the opening of the rotator. Of course, the structure of the supporting device is not particularly limited, and the present application will be described by way of example only.
The radiation therapy equipment provided by the application, the connection mode of the support frame and the rotating body and the rotation mode that the rotating body can rotate along the rotation axis relative to the support frame can have a plurality of different realization modes. Illustratively, the support frame and the rotator are coupled for rotation by a rolling bearing. The rotation may be driven by a gear ring or a pulley, and the present application is not limited to this, and the above examples are given only.
According to the technical scheme of the application, as shown in fig. 7, the supporting device 5 comprises: the radiotherapy apparatus further comprises a drive shaft 7, a support 53 and a rotator 52, the drive shaft 7 driving the cantilever 2 to rotate along the rotation axis 11, the rotator 52 being connected to the drive shaft 7. On the one hand, the rotating body is connected with the driving shaft, and the driving shaft can directly drive the rotating body to rotate, on the other hand, the rotating body is connected with the driving shaft, so that the coaxial between the rotating axis of the rotating body and the rotating axis of the cantilever can be realized more easily, the installation mode is simplified, and the coaxial confirmation by using other structures or equipment is avoided.
Specifically, the invention provides a rotating body structure, which comprises a first flange, a second flange and a connecting piece for connecting the first flange and the second flange; wherein the first flange is connected with the cantilever and/or the treatment head and the second flange is connected with the drive shaft.
The first flange may be coupled to the cantilever or the treatment head and may be provided with an opening to allow the treatment couch to reciprocate therethrough. Further, in the present application, the dimensions of the first flange and the second flange may be different, for example, the diameter of the first flange is larger than the diameter of the second flange, etc., and the structure of the rotating body is not particularly limited, and the above description is only given by way of example.
According to the technical scheme provided by the application, the supporting device is fixedly connected with the frame. The support device is a fixing device, the frame is a fixing device, and the support device is fixedly connected with the frame to further improve the fixity of the support device and the frame.
Specifically, the radiotherapy apparatus further comprises a base; the frame is connected with the base; and the supporting device is connected with the base so as to realize the fixed connection of the supporting device and the frame. Of course, the supporting device can be fixed on the ground, and the stand can also be fixed on the ground. The application is not limited to the fixing connection mode of the supporting device and the frame, and only the above description is given by way of example.
The application provides a radiation therapy device, which also comprises at least one set of imaging device, wherein the imaging device comprises a bulb tube and a detector which are oppositely arranged, and a beam emitted by the bulb tube passes through a patient and can be received by the detector. As shown in fig. 6, the radiotherapy apparatus is illustrated as comprising two sets of imaging devices, a first imaging device comprising a first bulb 24a and a first detector 25a, and a second device comprising a second bulb 24b and a second detector 25b, wherein the beams of the two sets of imaging devices intersect.
In fig. 6, the imaging device is shown as being fixed on the supporting frame, and the imaging device may be fixed on the frame or the ceiling and the ground. Of course, the imaging device may also rotate, for example, the imaging device is fixed on the rotating body, so that the imaging device is driven to rotate by the rotating body.
In the application, the mounting positions of the treatment head and the imaging device can be set according to the requirement so as to prevent the treatment beam emitted by the treatment head and the beam of the imaging device from interfering with each other.
The present application provides a radiation therapy apparatus, as shown in fig. 6, further comprising a receiving plate 31 disposed opposite the therapy head 3. The receiving plate can receive the beam of the treatment head, so that dose verification, accuracy verification and the like can be performed on the beam of the treatment head. Of course, if the beam of the treatment head passes through the human body and is received by the receiving plate, the receiving plate may also form an image of the tumor area according to the received beam, so as to position the patient or track the patient during treatment. The specific effect of the application on the receiving plate is not limited.
The radiation therapy equipment provided by the application has the advantages that the receiving flat plate is rotatable, so that the receiving flat plate is always positioned opposite to the therapy head in the rotation process of the therapy head, and the radiation beam emitted by the therapy head is received. In particular, the receiving plate may be fixed to the rotating body so as to be rotated by the rotation of the rotating body. The fixing and rotating modes of the receiving plate are not particularly limited, and the present application will be described by taking the above examples as an example.
The application provides a radiation therapy device, as shown in fig. 8, the radiation therapy device further comprises a shielding body 13 arranged opposite to the therapy head 3, and the radiation beam emitted by the therapy head 3 passes through a human body and is absorbed by the shielding body 13, so that the risk of radiation leakage can be avoided. In the related art, in order to prevent the radiation from leaking, the treatment room is generally modified to make the wall of the treatment room thicker, and the radiation treatment device greatly reduces the requirement of radiation treatment equipment on shielding protection of the treatment room by arranging the shielding body opposite to the treatment head to absorb redundant radiation, so that the construction or modification cost of the treatment room is greatly saved.
In a further preferred embodiment, the shielding body is rotatable about the axis of rotation, so that, in the case of a rotation of the treatment head, the shielding body is always located opposite the treatment head in order to receive the radiation beam emitted by the treatment head. Further, the shielding body is fixedly connected to the rotating body and is driven by the rotating body to rotate. Of course, the shield may be rotated by a separate device or apparatus, and the rotation method is not particularly limited in the present application, and the above description is merely given by way of example.
In a radiation therapy apparatus provided by the present application, as shown in fig. 8, in the case where the radiation therapy apparatus further includes a receiving plate 31 and a shielding body 13, the shielding body 13 is located behind the receiving plate 31. I.e. the radiation beam emitted by the treatment head 3 after passing through the human body is received by the receiving plate 31, and the beam passing through the receiving plate 31 is received by the shielding body 13.
In the present application, the shield body may be formed of a material having a shielding effect, and may be lead, tungsten alloy, or the like, for example.
The radiotherapy apparatus provided by the present application, as shown in fig. 6, further includes a laser device, where the laser device includes a laser emitter 23a and a laser receiver 23b, and in fig. 6, the laser emitter 23a and the laser receiver 23b are relatively disposed on the support frame, and the specific structure and the disposition of the laser device are not specifically limited, and only illustrated as an example.
According to the technical scheme of the invention, as shown in fig. 9, the radiotherapy equipment further comprises a treatment couch 4 and a protection plate 8, wherein the treatment couch 4 and the treatment head 3 are respectively positioned at two sides of the protection plate 8, and an opening is arranged on the protection plate 8, so that the treatment couch 4 can enter the other side of the protection plate 8 along the opening of the protection plate 8.
Illustratively, and as illustrated in fig. 9, the treatment couch 4 is movable in a direction 101 so as to be movable through the shield plate 8 to the side of the shield plate 8 having the treatment head 3 for delivering a patient for treatment.
On the one hand, the radiation treatment equipment can be isolated by the protection plate, so that the panic mind of a patient is avoided, and the treatment effect of the patient is improved. On the other hand, the protection plate can be formed by shielding materials (such as lead, tungsten or alloys thereof, etc.), so that the treatment space of the treatment room can be separated, namely, the side of the protection plate with the treatment head is the treatment space, and when the patient is treated, the patient is sent into the treatment space through the treatment bed to be treated. Due to the isolation effect of the protection plate, the radiation on one side of the treatment bed of the protection plate can be reduced, so that the leakage or extra radiation is avoided when the treatment is not carried out or medical staff enter.
It should be noted that, in the case where the radiotherapy apparatus further includes an imaging device, a receiving plate, or a laser device, it may be located on the side of the shield plate where the treatment head is located.
Further, as shown in fig. 9, the radiotherapy apparatus further comprises a drum 9, the drum 9 is located on the side of the protection plate 8 having the treatment head 3, one end of the drum 9 is communicated with the opening of the protection plate 8, and the treatment couch 4 is reciprocally movable in the axial direction of the drum 9 inside the drum 9. The roller can further isolate the patient from the radiotherapy device, and the treatment space formed by the roller can relieve the tension of the patient.
The present application is not particularly limited with respect to the specific structure and fixing of the drum. The axis of the drum is, for example, coaxial with the axis of rotation. The other end of the drum is illustratively connected to a frame or support. Fig. 9 illustrates an example in which the other end of the drum is connected to the frame. Of course, the roller may be connected to the supporting device, specifically, the rotating body, or the supporting frame.
Further, the radiotherapy equipment provided by the application has the advantages that the axis of the roller is coaxial with the rotation axis, and the roller can rotate around the rotation axis. That is, when the cantilever drives the treatment head to rotate, the roller can also synchronously or asynchronously rotate with the treatment head. And the roller is connected with the rotating body, and the roller can be driven to rotate by the rotating body. Of course, the drum is connected to the frame, or alternatively, the drum is connected to a driving shaft, so that the drum is driven to rotate by the driving shaft. Of course, the drum may be rotated by an independent rotation mechanism, and the present application is not limited to the specific rotation method of the drum, and the above description is given only as an example.
In addition, the treatment head can extend into the roller or be positioned outside the roller, and the roller is generally formed by adopting non-shielding materials such as plastics, so that even if the treatment head is positioned outside the roller, the treatment effect on a patient can not be influenced due to the penetrability of rays.
In the description of the present invention, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. In addition, the term "include" and any variations thereof are intended to cover a non-exclusive inclusion.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.