Image-guided after-loading treatment device

Abstract

The utility model relates to the technical field of medical apparatus and instruments, and particularly provides an image-guided after-loading treatment device, which comprises an after-loading treatment part which comprises a radioactive source part which comprises at least one radioactive source module, and the radioactive source module is used for placing at least one of a true source and a false source; the treatment bed can be used for placing a patient; and the imaging part comprises imaging modules, the imaging modules comprise a first imaging module and a second imaging module, and the patient is located between the first imaging module and the second imaging module under the condition of the treatment pose. By means of the structure, imaging of a target area and an organ at risk of a patient can be achieved through the arrangement of the imaging part, for example, simulation positioning of the patient can be completed in the same treatment room, and then a treatment plan can be designed; and the change of the anatomical structure can be found in time before treatment or during treatment, so that intervention measures can be taken in time, and the delivery precision of the dosage is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically provide a kind of image guided afterloading treatment device. BACKGROUND

[0002] The steps of three-dimensional afterloading brachytherapy are as follows: first, place the applicator (which can be hard tubular, soft tubular, needle-shaped, etc.) in the human body's natural cavity / tube (such as the uterine cavity, rectum, bronchial cavity, nasopharyngeal cavity, etc.) near the tumor or implant the hollow needle tube into the tumor (insertion needle); then, perform CT / magnetic resonance scanning to obtain image data, which is transmitted to the treatment planning system; the doctor can determine the target area range according to the patient's condition and calculate the dose distribution through the treatment planning system to determine a specific treatment plan; then, under the condition of protective shielding, start the switch to automatically input the radioactive source from the source tank into the applicator or insertion needle through the pipeline for radiotherapy of the tumor. After treatment, the radioactive source can automatically return to the source tank.

[0003] Three-dimensional afterloading can adjust the irradiation range of the radioactive source according to the morphology of the tumor to achieve good target area coverage quality, which has the advantages of improving the survival rate of patients and significantly reducing the recurrence rate. In addition, it also has the advantages of improving the prognosis of patients and reducing the toxic and side effects of critical organs. However, since the CT / MR scanner and the afterloading machine are not in the same room, the patient needs to be transferred from the CT / MR positioning room to the afterloading treatment room on the transfer bed after positioning, and a certain amount of planning design time (usually up to several tens of minutes) is required before treatment can begin. During this period, due to the movement of organs such as the patient's intestinal peristalsis and bladder filling, the anatomical structure of the target area and its surrounding normal tissues will change significantly. If the change in anatomical structure cannot be discovered in time, it may lead to inconsistency between the irradiation dose and the planned design value, which will affect the treatment effect.

[0004] However, the existing afterloading machine does not have imaging equipment, which cannot discover the changes in anatomical structure before or during treatment in time, resulting in inconsistency between the irradiation dose and the planned design value, which affects the treatment effect. For example, the mobile ring-shaped imaging system produced by Medtronic Company can be used to obtain image data of the patient to realize image-guided afterloading treatment to ensure the accuracy of dose delivery and protect critical organs. Another example is the Chinese invention patent application (CN1724089A), which discloses a three-dimensional conformal brachytherapy integrated system. The document proposes that a mobile C-arm X-ray machine can be used to obtain image data of the patient for afterloading planning design, applicator position verification, etc. However, the above-mentioned devices / systems for obtaining image data generally have the problems of low integration level and relatively complicated operation. UTILITY MODEL CONTENT

[0005] In order to at least partially solve the above technical problems and / or solve at least part of the above technical problems, the utility model provides a kind of image-guided afterloading treatment device.

[0006] Therefore, the utility model provides an image-guided afterloading treatment device, which comprises: an afterloading treatment part, which comprises a radioactive source part, the radioactive source part comprises at least one radioactive source module, the radioactive source module is used to place at least one of the real source and the false source; and a treatment bed capable of accommodating a patient; and an imaging part, which comprises: an imaging module, the imaging module comprises a first imaging module and a second imaging module, the patient is between the first imaging module and the second imaging module in the case of being in a treatment state.

[0007] Through such a configuration, the imaging of the patient's target area and the organ at risk can be realized through the setting of the imaging part, so that the changes in the anatomical structure can be found in time. The at least one radioactive source module can include one radioactive source module or multiple (two or more) radioactive source modules.

[0008] For the above-mentioned image-guided afterloading treatment device, in one possible implementation, the imaging part comprises: an imaging movable assembly arranged on the afterloading treatment part, and the imaging module can move relative to the afterloading treatment part through the imaging movable assembly. Through such a configuration, the imaging of the patient's target area and the organ at risk can be better realized through the imaging movable assembly.

[0009] For the above-mentioned image-guided afterloading treatment device, in one possible implementation, the imaging movable assembly comprises: a rotating ring rotatably arranged on the afterloading treatment part; and a support assembly comprising a first support assembly and a second support assembly, the first imaging module and the second imaging module are arranged on the first support assembly and the second support assembly respectively. Through such a configuration, the imaging of the patient's target area and the organ at risk can be more comprehensively realized through rotation.

[0010] For the above-mentioned image-guided afterloading treatment device, in one possible implementation, the first support assembly and / or the second support assembly comprises a support arm arranged on the rotating ring; correspondingly, the treatment bed is provided with a movable assembly, and the treatment bed is movable relative to the afterloading treatment part through the movable assembly; and / or the first support assembly and / or the second support assembly further comprises a sliding assembly, the sliding assembly comprises a first sliding part and a second sliding part, wherein the first sliding part is arranged on the support arm, the second sliding part is slidable relative to the first sliding part, and the first imaging module or the second imaging module is arranged on the corresponding second sliding part.

[0011] Through such a configuration, it is possible to achieve more accurate imaging of the target region of the patient and the organs at risk through sliding. Specifically, the position and posture of the imaging module can be adjusted through cooperation of the movable assembly and / or the sliding assembly with the rotating ring.

[0012] For the image-guided afterloading therapy device described above, in a possible implementation, the afterloading therapy part includes a receptacle seat, the rotating ring is arranged on the receptacle seat, the imaging movable assembly includes a rotating ring driving component, the rotating ring driving component can drive the rotating ring to rotate relative to the afterloading therapy part; the receptacle seat is provided with at least one receptacle.

[0013] Through such a configuration, it is possible to achieve driving of the rotation of the rotating ring through the rotating ring driving component. For example, in the case of including only one receptacle, the receptacle is arranged at the central position of the receptacle seat. For example, in the case of including multiple (two or more) receptacles, the multiple receptacles are arranged in a circle, a rectangle, etc. around the circumference of the receptacle seat. It should be noted that the multiple receptacles arranged in a circle or a rectangle should be understood as being arranged in a circle or a rectangle.

[0014] For the image-guided afterloading therapy device described above, in a possible implementation, the afterloading therapy part includes a base body, the receptacle seat is arranged on the base body, and the rotating ring driving component is arranged on the base body.

[0015] Through such a configuration, a possible mounting mode of the rotating ring driving component is given. For example, a person skilled in the art can determine the structure of the base body, the number of components included therein, etc. according to actual needs.

[0016] For the image-guided afterloading therapy device described above, in a possible implementation, the first imaging module and / or the second imaging module is provided with an anti-collision assembly on the side close to the patient.

[0017] Through such a configuration, it is possible to ensure the safety of imaging.

[0018] For the image-guided afterloading therapy device described above, in a possible implementation, the first imaging module is an X-ray generator, the second imaging module is an X-ray detector, and the anti-collision assembly is arranged on the X-ray generator.

[0019] Through such a configuration, a specific imaging mode of the imaging part and a specific configuration mode of the anti-collision assembly are given.

[0020] For the image-guided afterloading therapy device described above, in a possible implementation, the first support assembly and the second support assembly are symmetrically arranged on the afterloading therapy part.

[0021] Through such a configuration, a possible structural form of the imaging activity assembly is given.

[0022] For the image-guided afterloading treatment device described above, in a possible implementation, the treatment bed is configured with an activity assembly, and a patient placed on the treatment bed can be moved relative to the afterloading treatment part by means of the activity assembly; or the treatment bed is fixedly arranged relative to the afterloading treatment part.

[0023] Through such a configuration, a possible form of the treatment bed and the afterloading treatment part constituting the image-guided afterloading treatment device is given.

[0024] In the preferred embodiment of the present application, through the arrangement of the imaging part, imaging of the target region and the critical organ of the patient can be realized, such as the simulation positioning of the patient can be completed in the same treatment room, and then the treatment plan is designed based on the positioning image; changes in the anatomical structure can also be found in time before or during treatment, and then intervention measures are taken in time according to the plan to ensure the delivery accuracy of the dose.

[0025] The additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0027] Figure 1 Fig. 1 shows a perspective structural schematic diagram of an image-guided afterloading treatment device according to a first embodiment of the present application;

[0028] Figure 2 Fig. 2 shows a front view schematic diagram of the image-guided afterloading treatment device according to the first embodiment of the present application;

[0029] Figure 3 Fig. 3 shows a side view schematic diagram of the image-guided afterloading treatment device according to the first embodiment of the present application;

[0030] Figure 4 Fig. 4 shows a rear view schematic diagram of the image-guided afterloading treatment device according to the first embodiment of the present application;

[0031] Figure 5 Fig. 5 shows a state schematic diagram of the image-guided afterloading treatment device according to the first embodiment of the present application during treatment of a patient;

[0032] Figure 6 A state schematic view of the image-guided afterloading treatment device of the second embodiment of the present application during treatment of a patient is shown.

[0033] Figure 7 A state schematic view of the image-guided afterloading treatment device of the third embodiment of the present application during treatment of a patient is shown.

[0034] In the drawings:

[0035] 100, treatment device;

[0036] 1, afterloading treatment unit;

[0037] 111, base; 112, stand; 113, support column;

[0038] 12, indexing module; 13, radioactive source module; 14, adapter disc seat; 15, adapter disc; 16, transmission tube;

[0039] 2, treatment bed;

[0040] 3, imaging unit;

[0041] 311, first imaging module; 312, second imaging module;

[0042] 32, imaging moving assembly;

[0043] 321, rotating ring; 3211, rotating ring motor;

[0044] 3221, first support assembly; 3222, second support assembly;

[0045] 41, support arm;

[0046] 421, first sliding component; 422, second sliding component;

[0047] 33, anti-collision assembly;

[0048] 200, patient. DETAILED DESCRIPTION

[0049] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0050] Embodiments of the present application will now be described in detail in the following detailed description with reference to the drawings. In the drawings, like reference numerals refer to like elements throughout. The embodiments described below are examples of implementations and are not intended to be limiting. Other embodiments can be devised without departing from the scope of the present application.

[0051] As will be understood by persons skilled in the art, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It should be further understood that the terms "comprise," "comprises," "comprising," "include," "includes," "including," "contain," "contains," "containing," and the like are used interchangeably with "comprising" and "containing" to mean including at least the recited member or elements and any additional elements. It should be further understood that when we use the term "connected" or "coupled" to the term "element" in the description, it can be directly connected or coupled to other elements or intervening elements can also be present. In addition, the use of "connection" or "coupling" herein also includes wireless connection or coupling. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0052] As will be understood by persons skilled in the art, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0053] In addition, in order to better illustrate the present application, numerous specific details are given in the following detailed description. Those skilled in the art will understand that the present application can be practiced without some of the specific details, and the principles of the radioactive source module are well known to those skilled in the art and are not described in detail in order to highlight the principles of the present application.

[0054] Example 1

[0055] Reference is made primarily to Figures 1 to 5In a possible implementation, the image-guided afterloading treatment device 100 mainly comprises an afterloading treatment part 1, a treatment bed 2 and an imaging part 3, wherein the afterloading treatment part is configured with a plurality of source modules, the afterloading treatment part is mainly used for accurately providing a radioactive source to a patient, the patient is placed (for example, in a lying posture) on the treatment bed during treatment, and the imaging part 3 is configured to the afterloading treatment part 1, and a data acquisition end (an imaging module) is aligned with the treatment bed, so as to realize imaging of a target region and an organ at risk corresponding to the patient 200, thereby being capable of discovering changes in anatomical structures in a timely manner.

[0056] In a possible implementation, the afterloading treatment part 1 mainly comprises a base body, a source module pivoting part, a radioactive source part, a indexing module, a pipe connection disc and an applicator. The base body mainly serves as a mounting carrier of the source module pivoting part, the indexing module and other functional modules. The radioactive source part comprises a plurality of radioactive source modules 13, and the radioactive source modules are pivotally arranged on the base body through the source module pivoting part. The radioactive source modules are mainly used for providing a true source or a false source. The source module pivoting part is mainly used for realizing alignment between the radioactive source modules and the indexing module. The pipe connection disc seat 14 is arranged on a stand of the base body, and the pipe connection disc 15 arranged on the pipe connection disc seat is mainly used for cooperating with the indexing module to construct a path for the true source or the false source to reach the applicator. The applicator selected according to the type of tumor needs to be placed on the body of the patient, and a plurality of transmission pipes for transporting the true source or the false source can be connected between the applicator and the pipe connection disc. The treatment bed can be configured with a movable assembly. For example, the movable assembly can be used to realize movement of the treatment bed relative to the afterloading treatment part in any form, such as a combination of a sliding rail and a sliding seat, a combination of a guide seat (with a hole) and an optical axis, and the like. For example, the movable assembly can be used to enable the bed plate of the treatment bed to translate in the front-back, left-right and up-down directions. Of course, the treatment bed can also be fixedly arranged relative to the afterloading treatment part. As shown in Embodiments 2 and 3 below, the pose (position and posture) of the imaging module can be adjusted through cooperation of the movable assembly and the rotating ring, or through cooperation of the sliding assembly and the rotating ring.

[0057] In a possible implementation, the source module pivoting part comprises a pivoting shaft driving module, a pivoting shaft and a pivoting support, the radioactive source modules are mounted on the pivoting support, the pivoting support is mounted on the pivoting shaft, the base body comprises a base 111, a stand 112 and a support column 113 arranged on the base, the pivoting shaft driving module is connected with the pivoting shaft, and the pivoting shaft is supported on the stand and the support column at positions close to two ends thereof. It can be understood that one or more (two or more) radioactive source modules are mounted on the pivoting support according to actual needs.

[0058] In the present example, the pivot shaft driving module is arranged on the support column. In addition to being arranged on the support column, the pivot shaft driving module can also be arranged on the base. The pivot shaft driving module generally comprises a pivot shaft driving component and a pivot shaft transmission mechanism. The pivot shaft driving component can be an electric motor or an electric cylinder. The pivot shaft transmission mechanism can be a gear transmission mechanism, a chain transmission mechanism, a belt transmission mechanism, etc.

[0059] In the present example, each radiation source module is provided with a indexing module and a pipe connection disc. In one possible implementation, the indexing module and the pipe connection disc are coaxially arranged on the stand. The indexing module is arranged on the stand and located between the stand and the pivot support. The pipe connection disc is arranged on the other side of the stand from the indexing module. In the present example, the pivot shaft driving module drives the pivot support to rotate. After any one of the radiation source modules is aligned with one of the indexing modules, the other radiation source modules are also aligned with one of the indexing modules.

[0060] In the present example, the radiation source module comprises five radiation source modules. A through hole capable of being connected with the pivot shaft is arranged in the middle of the pivot support. Five radiation source module mounting positions for mounting the five radiation source modules are arranged around the through hole. In the present example, the radiation source module mounting positions are generally radiation source module mounting slots. In the present example, the five radiation source module mounting slots are uniformly distributed around the pivot support. One of the radiation source module mounting slots is used to mount the radiation source module with the dummy source cable. The other four radiation source module mounting slots can be used to mount four radiation source modules according to actual needs.

[0061] Correspondingly, a through hole capable of being connected with the pivot shaft is arranged in the middle of the stand. Five indexing disc module mounting positions for mounting the five indexing disc modules are arranged around the through hole on one side of the stand. In the present example, the indexing disc module mounting positions are generally indexing disc module mounting slots. The distribution of the positions of the indexing disc module mounting slots is generally consistent with the distribution of the positions of the aforementioned radiation source module mounting slots on the pivot support. The rotation of the pivot support can align the radiation source modules with one of the indexing modules.

[0062] In one possible implementation, the imaging unit 3 mainly comprises an imaging module and an imaging moving assembly 32. The imaging module is mainly used to acquire image data of a target region of a patient. The imaging moving assembly 32 is mainly used to drive the imaging module to move relative to the target region of the patient.

[0063] In a possible implementation, the imaging activity assembly 32 mainly comprises a rotating ring 321 rotatably arranged on the standpipe disc base and a support assembly. The rotating ring 321 can drive the imaging module to rotate around the circumference of the patient target area (assuming that the length direction of the patient is the axial direction). The support assembly mainly comprises a first support assembly 3221 and a second support assembly 3222. The imaging module comprises a pair of first imaging modules 311 and second imaging modules 312 arranged on the first support assembly 3221 and the second support assembly 3222, respectively. The cooperation of the first imaging modules and the second imaging modules can realize image acquisition of the patient target area located therebetween.

[0064] In a possible implementation, the rotating ring 321 is rotatably arranged on the standpipe disc base through a bearing. The rotating ring is provided with a rotating ring driving component. Under the driving of the rotating ring driving component, the rotating ring can rotate relative to the standpipe disc base. In this example, the rotating ring driving component is a rotating ring motor 3211. The rotating ring motor can directly drive the rotating ring to rotate or indirectly drive the rotating ring to rotate through gear transmission, belt transmission or chain transmission. In this example, the rotating ring motor is fixedly installed on the stand of the base body 112.

[0065] In a possible implementation, referring to the orientation shown in Figure 1 In this example, the first support assembly 3221 and the second support assembly 3222 have substantially the same structure and are arranged substantially symmetrically on the rotating ring. In the assembled state, the imaging module is arranged on the support assembly, that is, in the assembled state, the modules corresponding to the imaging modules on the first support assembly and the second support assembly are arranged substantially opposite to each other, such as the imaging components substantially align with the patient target area. Obviously, the structures of the first support assembly and the second support assembly can be different as long as their functions can be guaranteed. For example, the imaging module can be realized to stretch and contract along the axial direction of the rotating ring through different mechanisms.

[0066] Taking the first support assembly as an example, in a possible implementation, the first support assembly 3221 mainly comprises a support arm 41 and a sliding assembly 42. The support arm is arranged on the rotating ring in a fixed connection or one-piece manner. The sliding assembly 42 comprises a first sliding component 421 and a second sliding component 422 which slide with each other. The first sliding component 421 is arranged on the side of the first support assembly close to the patient target area, and the second sliding component can slide relative to the first sliding component. In this example, the first sliding component is a sliding rail, and the second sliding component is a sliding seat. The sliding seat is provided with a sliding groove capable of sliding with the sliding rail. Obviously, those skilled in the art can determine the specific form of the sliding assembly according to actual needs, such as interchanging the positions of the sliding rail and the sliding seat, replacing the cooperation of the sliding rail and the sliding seat with the cooperation of the sliding shaft and the sliding plate, etc.

[0067] In a possible implementation, the imaging module 31 comprises a first imaging module 311 and a second imaging module 312 arranged in pairs, for example, the first imaging module is an X-ray generator and the second imaging module is an X-ray detector, one of the X-ray generator and the X-ray detector is mounted on the slide of the first support assembly and the other is mounted on the slide of the second support assembly. For example, in the present example, the X-ray generator is fixedly mounted on the slide of the first support assembly and the X-ray detector is fixedly mounted on the slide of the second support assembly opposite the X-ray generator. Based on such an arrangement, the X-rays generated by the X-ray generator reach the X-ray detector after passing through the patient's body, and based on this, the anatomical structure of the patient can be obtained, and the obtained anatomical structure can be used for planning design, positioning verification, etc.

[0068] In a possible implementation, the X-ray generator can be provided with a collision prevention assembly 33 capable of improving safety performance, for example, the collision prevention assembly comprises a collision prevention micro switch, a collision prevention laser, etc. In this way, when the imaging module rotates around the patient's target area under the drive of the rotary ring motor, if the X-ray generator collides with the patient's body, the rotation can be stopped urgently through the arrangement of the collision prevention assembly, and thus the safety of the image-guided afterloading treatment device is ensured. The collision prevention assembly can also be arranged on the X-ray detector or both the X-ray generator and the X-ray detector.

[0069] In a possible implementation, the basic process of the image-guided afterloading treatment device of the present application for treating a patient is as follows:

[0070] (1) Patient positioning and placement of the applicator. The specific process generally includes: making the patient lie on the treatment bed, adjusting the height, front / back / left / right position, etc. of the treatment bed, so that the patient's tumor target area is approximately located at the center of the imaging module, and installing the applicator to be placed into the patient's body.

[0071] (2) Target area imaging. For example, the slide of the first / second support assembly can be controlled to slide along the slide rail so that the X-ray generator is aligned with the patient part that needs to be imaged, and the X-ray detector reaches a position opposite the X-ray generator, and then the rotary ring drives the imaging module to rotate around the patient's tumor target area for a full circle or a certain angle, thereby obtaining an anatomical structure image of the tumor target area and the surrounding normal tissue.

[0072] (3) Radiotherapy plan design. For example, after the imaging module transmits the obtained anatomical image to the radiotherapy plan system, the doctor can delineate the contours of the tumor target area and the surrounding normal tissue according to the anatomical image, and the physicist can design a radiotherapy plan according to the prescribed dose requirement.

[0073] (4) Preparation and verification of radiation delivery. According to the radiation plan, the transmission tubes 16 are connected to the adapter disk and the applicator, respectively. Then, the passage verification is performed, i.e. a dummy source is controlled to enter each transmission tube and reach the set position in the applicator, verifying whether each passage designed in the radiation plan is unobstructed.

[0074] (5) Radiation delivery, i.e. the real source is controlled to pass through the transmission tubes and reach the set position in the applicator, and radiation is delivered according to the designed radiation plan. Then, the source is retrieved, i.e. after the radiation delivery is completed, the real source is retrieved into the source storage chamber of the source module, and the treatment is completed.

[0075] It can be seen that, in the whole process, the imaging of the target region of the patient can be realized according to the need by using the imaging part without moving the patient, so as to timely monitor whether the position of the applicator relative to the tumor site of the patient has changed, and take intervention measures according to the actual situation to ensure the dose delivery accuracy.

[0076] Embodiment 2

[0077] With reference mainly to Figure 6 The basic structure of this embodiment and the treatment of the patient are basically the same as those of Embodiment 1, and will not be described here. The difference is that this embodiment only includes one source module (and the corresponding indexing module, indexing module, adapter disk seat, adapter disk, etc.).

[0078] Embodiment 3

[0079] With reference mainly to Figure 7 The basic structure of this embodiment and the treatment of the patient are basically the same as those of Embodiment 2, and only the differences will be introduced here. The difference is that the X-ray generator and the X-ray detector are fixedly installed on one of the first support arm and the second support arm, respectively, and the X-ray generator and the X-ray detector are arranged opposite to each other in the assembled state. When performing target region imaging, the imaging position is no longer adjusted by means of the slide / slide rail, but the position of the X-ray generator / detector relative to the patient is adjusted by adjusting the position of the treatment bed. Specifically, the treatment bed is adjusted so that the X-ray generator / detector is aligned with the body part of the patient corresponding to the tumor target region which needs to be imaged. On this basis, the imaging module can be rotated by the rotating ring to rotate a full circle or a certain angle around the tumor target region of the patient, so as to obtain the image of the tumor target region and the normal tissue around it.

[0080] It can be seen that, in the preferred embodiment of the present application, the imaging part is arranged on the afterloading treatment part of the image-guided afterloading treatment device, so that the images corresponding to the target area and the critical organ of the patient can be obtained in time according to the actual needs. Specifically, through the arrangement of the support assembly, the imaging module is arranged on the afterloading treatment part. Through the arrangement of the rotating ring, the rotation of the imaging module around the target area of the patient is realized. Through the arrangement of the sliding assembly on the support assembly or the adjustment of the position of the patient treatment bed, the position adjustment of the first / second imaging module relative to the patient is realized.

[0081] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the present application, and the technical schemes after the changes or replacements will fall within the protection scope of the present application.

Claims

1. An image-guided afterloading treatment device, characterized in that The device comprises: a rear-mounted treatment unit, which comprises a radioactive source unit, the radioactive source unit comprising at least one radioactive source module for placing at least one of a real source and a dummy source; and a treatment bed capable of accommodating a patient; and an imaging unit, which comprises: an imaging module, the imaging module comprising a first imaging module and a second imaging module, the patient being located between the first imaging module and the second imaging module in a treatment position state.

2. The image-guided afterloading treatment device of claim 1, wherein, The imaging unit comprises: an imaging movable assembly arranged on the rear-mounted treatment unit, the imaging module being movable relative to the rear-mounted treatment unit through the imaging movable assembly.

3. The image-guided afterloading treatment device of claim 2, wherein, The imaging movable assembly comprises: a rotating ring rotatably arranged on the rear-mounted treatment unit; and a support assembly, which comprises a first support assembly and a second support assembly, the first imaging module and the second imaging module being arranged on the first support assembly and the second support assembly, respectively.

4. The image-guided afterloading treatment device of claim 3, wherein, The first support assembly and / or the second support assembly comprises a support arm arranged on the rotating ring. Correspondingly, the treatment bed is configured with a movable assembly, the treatment bed being movable relative to the rear-mounted treatment unit through the movable assembly; and / or The first support assembly and / or the second support assembly further comprises a sliding assembly, the sliding assembly comprising a first sliding component and a second sliding component, wherein the first sliding component is arranged on the support arm, the second sliding component being slidable relative to the first sliding component, the first imaging module or the second imaging module being arranged on the corresponding second sliding component.

5. The image-guided brachytherapy device of claim 3 or 4, wherein, The rear-mounted treatment unit comprises a connecting disc seat, the rotating ring being arranged on the connecting disc seat, The imaging movable assembly comprises a rotating ring driving component, the rotating ring driving component being capable of driving the rotating ring to rotate relative to the rear-mounted treatment unit, The connecting disc seat is provided with one or more connecting discs.

6. The image-guided brachytherapy device of claim 5, wherein, The rear-mounted treatment unit comprises a base body, the connecting disc seat being arranged on the base body, and the rotating ring driving component being arranged on the base body.

7. The image-guided brachytherapy device of claim 1, wherein, The first imaging module and / or the second imaging module is provided with a collision prevention assembly on a side close to the patient.

8. The image-guided brachytherapy device of claim 7, wherein, The first imaging module is an X-ray generator, and the second imaging module is an X-ray detector, the collision prevention assembly being arranged on the X-ray generator and / or the X-ray detector.

9. The image-guided brachytherapy device of claim 3, wherein, The first support assembly and the second support assembly are symmetrically arranged on the rear-mounted treatment unit.

10. The image-guided brachytherapy device of claim 1, wherein, The treatment bed is configured with a movable assembly, the patient accommodated on the treatment bed being capable of moving relative to the rear-mounted treatment unit through the movable assembly; or The treatment bed is fixedly arranged relative to the rear-mounted treatment unit.

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