After-loading treatment device

Abstract

The utility model relates to the technical field of medical apparatus and instruments, and particularly provides an after-loading treatment device which comprises a base body, the source modules are used for placing true sources or false sources; the rotating assembly is arranged on the base body and comprises a rotating frame, a plurality of source module mounting positions are arranged on the rotating frame, and the source modules can be rotatably arranged on the base body through the rotating assembly; the indexing assembly comprises an indexing plate and a plurality of indexing holes which are formed in the indexing plate and correspond to the plurality of source modules; wherein the indexing assembly is arranged on the downstream side of the rotating assembly when being observed along the source application path of the true source or the false source. With such a configuration, it is possible to improve the usability of the afterloading treatment device by means of the arrangement of the plurality of source modules.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely provides a kind of afterloading treatment device. BACKGROUND

[0002] Afterloading treatment machine as a kind of radioactive source driving equipment, its working principle is: by being transported to the malignant tumor near the residence position of patient's cavity, pipe or interstitial space etc., realizes the brachytherapy to focus of disease.In the end of treatment, radioactive source is withdrawn to the shielding container of afterloading treatment machine.

[0003] Current afterloading treatment machine is usually only configured with one true source, based on such structure, after once source operation, only one residence position can be irradiated to realize the brachytherapy to the focus of disease of this position, the more residence position, the longer treatment time.In the case of multiple residence positions in tumor region, the current processing mode is: need to configure indexer for afterloading treatment machine, by cooperating indexer control radioactive source's access channel to send radioactive source to each residence position in turn to realize the brachytherapy to the focus of disease of corresponding residence position, and need to use dummy source to verify whether the source channel of each residence position is unobstructed first.With the decrease of activity of radioactive source, treatment time will be further increased on the basis of longer due to verification reason described above.Moreover, in order to ensure treatment efficiency, radioactive source needs to be replaced when it still has certain activity (such as half activity), which will cause waste of radioactive source and increase the recovery cost of radioactive source.

[0004] Correspondingly, the prior art needs a new technical solution to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at at least certain degree solving above-mentioned technical problem and / or solving at least a part of above-mentioned technical problem, specifically, the utility model provides a kind of afterloading treatment device, can flexibly install one or more source modules according to the demand situation of patient population, then according to the individual condition of each patient, select one or more source modules, and be in current use state in parallel or sequentially.Based on this, the afterloading treatment device of the utility model not only can reduce treatment time, improve treatment efficiency, but also can prolong the service life of each radioactive source, reduce source cost.

[0006] In view of the above, the utility model provides a kind of afterloading treatment device, which comprises: matrix;Multiple source modules, the source module is used to place true source or false source;Rotary assembly, it is set to the matrix and includes rotating frame, multiple source module mounting positions are provided on the rotating frame, the source module can be rotatably set to the matrix by the rotary assembly;And index assembly, it includes index plate and the multiple index holes corresponding to the multiple source modules are set on the index plate;Wherein, along the source path of true source or false source, the index assembly is set to the downstream side of the rotary assembly.

[0007] Through such a structure, the use performance of the afterloading treatment device can be improved by the arrangement of multiple source modules. Moreover, since the index assembly only includes one, the use performance of the afterloading treatment device is further improved.

[0008] It can be understood that the structure, number, relative position, etc. of the source module can be determined by the actual needs of the person skilled in the art. For example, the structures of the multiple source modules can be the same or different, and they can be uniformly or non-uniformly distributed at different positions of the rotating frame.

[0009] For the above-mentioned afterloading treatment device, in one possible embodiment, the afterloading treatment device further comprises: a convergence assembly comprising a convergence layer and multiple convergence pipelines corresponding to the multiple index holes provided on the convergence layer;And a pipe connection assembly comprising a pipe connection disc support and multiple pipe connection disc holes corresponding to the multiple convergence pipelines provided on the pipe connection disc support;Wherein, the convergence assembly is located between the index assembly and the pipe connection assembly.

[0010] Through such a structure, a possible structure of the afterloading treatment device is given.

[0011] For the above-mentioned afterloading treatment device, in one possible embodiment, the rotary assembly comprises a driving part, and the driving part comprises: a driving component;Supporting shaft, it is set to the matrix;The driving component can drive the rotating frame to rotate by the supporting shaft and thus drive the source module arranged on the rotating frame to move.

[0012] Through such a structure, the movement of the source module can be realized based on the driving force provided by the driving component. For example, the driving component can be a motor or any form of rotating module (such as a combination of motor and gear pair, etc.).

[0013] For the above-mentioned afterloading treatment device, in one possible embodiment, the rotating frame is of annular structure, and the driving component can drive the rotating frame to rotate around its axis.

[0014] Through such a configuration, the source module can be brought to the working position by the rotation of the rotating frame.

[0015] In one possible implementation of the above brachytherapy device, the rotating frame comprises one or a plurality of annular structures distributed along the radial direction, the support shaft is fixedly arranged on the rotating frame, and the driving component can drive the rotating frame to rotate relative to the support shaft independently of each other.

[0016] Through such a configuration, the use performance of the brachytherapy device can be better satisfied by one or a plurality of rotating frames, and possible driving connection modes between the driving component and the rotating frames are provided.

[0017] In one possible implementation of the above brachytherapy device, the support shaft is a cylindrical structure, the rotating frame is arranged on the outer wall of the support shaft, and the driving part further comprises a transmission mechanism, the transmission mechanism comprises a gear connected to the power output end of the driving component and a ring gear arranged on the inner wall or the outer wall of the cylindrical structure, the gear can be engaged with the ring gear, and thus the driving component is rotationally connected to the support shaft through the transmission mechanism.

[0018] Through such a configuration, the driving component can be drivingly connected to the rotating frame by means of the transmission mechanism. In the case where the rotating frame comprises one layer, the inner wall of the cylindrical structure is provided with the ring gear; in the case where the rotating frame comprises a plurality of layers, the outer wall of the cylindrical structure is provided with the ring gear.

[0019] In one possible implementation of the above brachytherapy device, the rotating frame comprises one or a plurality of annular structures distributed along the radial direction, the support shaft is fixedly arranged on the rotating frame, and the driving component can drive the rotating frame to rotate relative to the support shaft independently of each other.

[0020] Through such a configuration, the use performance of the brachytherapy device can be better satisfied by one or a plurality of rotating frames, and possible driving connection modes between the driving component and the rotating frames are provided (the driving component drives the rotating frames to rotate relative to each other independently). Exemplarily, in the case of the rotating frame that can rotate independently in each layer of the single layer or the plurality of layers, the support shaft is a cylindrical structure fixed on the base body. In the case of the rotating frame that rotates synchronously in the single layer or the plurality of layers, the support shaft is a solid shaft fixed on the rotating frame.

[0021] For the afterloading device, in a possible implementation, the rotating frame comprises one or more annular structures distributed in a radial direction, in the case where the rotating frame comprises a plurality of annular structures, a plurality of sets of indexing holes corresponding to the plurality of annular structures are arranged on the indexing plate, a plurality of sets of converging conduits corresponding to the plurality of annular structures are arranged on the converging layer, and a plurality of sets of adapter disc holes corresponding to the plurality of annular structures are arranged on the adapter disc support.

[0022] Through such a configuration, a possible structural form of the afterloading device in the case where the rotating frame comprises a plurality of annular structures is given.

[0023] For the afterloading device, in a possible implementation, the source module can be detachably arranged at a source module mounting position on the rotating frame.

[0024] Through such a configuration, it is possible to improve the maintenance efficiency of the source module and the like.

[0025] For the afterloading device, in a possible implementation, the rotating frame is provided with a first sliding structure at a position corresponding to the source module mounting position, the source module comprises a support structure provided with a second sliding structure thereon and a source storage tank capable of providing a real source or a dummy source, and the source module can be arranged at the source module mounting position in a push-pull manner by means of sliding connection of the first sliding structure and the second sliding structure.

[0026] Through such a configuration, a possible implementation of sliding connection in detachable connection is given.

[0027] In the preferred embodiment of the present application, one or more rotating frames comprising a plurality of source module mounting positions are adopted, based on which a plurality of source modules can be configured on the afterloading device according to actual needs, based on which the use efficiency of the source modules can be improved, the source replacement cost can be reduced, and the plurality of source modules can be simultaneously used to implement brachytherapy, thereby reducing the treatment time. In addition, the indexing assembly only comprises one, and the source modules can be synchronously moved or relatively independently moved, so that the device is more flexible during use. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 The afterloading device of the first embodiment of the present application adopts a single rotating assemblyFigure 1 ;

[0030] Figure 2 Structure diagram of the afterloading therapy device of the first embodiment of the present application without the source module installed Figure 2 , in which the source module is removed;

[0031] Figure 3 Structure diagram of the indexing assembly of the afterloading therapy device of the first embodiment of the present application Figure 3 , in which the indexing hole, the converging pipeline and the connecting hole are shown in a perspective manner;

[0032] Figure 4 Structure diagram of the afterloading therapy device of the first embodiment of the present application Figure 4 (front view);

[0033] Figure 5 Structure diagram of the source module of the afterloading therapy device of the embodiment of the present application;

[0034] Figure 6 Principle diagram of the afterloading therapy device of the embodiment of the present application;

[0035] Figure 7 Structure diagram of the afterloading therapy device of the second embodiment of the present application Figure 1 (three-dimensional);

[0036] Figure 8 Structure diagram of the afterloading therapy device of the second embodiment of the present application Figure 2 (back view).

[0037] Figure 9 Structure diagram of the afterloading therapy device of the second embodiment of the present application Figure 3 (front view);

[0038] Figure 10 Structure diagram of the afterloading therapy device of the second embodiment of the present application without the source module installed;

[0039] Figure 11 Structure diagram of the support shaft of the afterloading therapy device of the second embodiment of the present application;

[0040] Figure 12 Structure diagram of the afterloading therapy device of the third embodiment of the present application;

[0041] Figure 13 Structure diagram of the afterloading therapy device of the third embodiment of the present application without the source module installed;

[0042] Figure 14A structure schematic view of a rotating frame in the rear-mounted treatment device of the third embodiment of the present application is shown.

[0043] Figure 15 A structure schematic view of the rear-mounted treatment device of the fourth embodiment of the present application is shown Figure 1 ; and

[0044] Figure 16 A structure schematic view of the rear-mounted treatment device of the fourth embodiment of the present application is shown Figure 2 , and the index hole is shown in the figure.

[0045] In the drawings:

[0046] 100, the rear-mounted treatment device;

[0047] 1, the base;

[0048] 2, the source module;

[0049] 3, the rotating assembly;

[0050] 4, the index assembly;

[0051] 5, the convergence assembly;

[0052] 6, the adapter disc assembly;

[0053] 7, the source applicator. DETAILED DESCRIPTION

[0054] The preferred embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should 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.

[0055] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be interpreted as limiting the present application.

[0056] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is further understood that the terms "comprise" and "comprising" and the like, when used in the specification, include things going into "comprising," that is, they are inclusive.

[0057] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. It is further understood that the terms "comprise" and "comprising" and the like, when used in the specification, include things going into "comprising," that is, they are inclusive.

[0058] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below, and those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, the principles of the source module and the like well known to those skilled in the art are not described in detail in order to highlight the main idea of the present application.

[0059] In order to facilitate the understanding of the patent embodiments of the present application, the following will be further explained and described with several specific embodiments as examples in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation on the patent embodiments of the present application.

[0060] Embodiment one

[0061] Mainly refer to Figures 1 to 6 In one possible implementation, the afterloading treatment device 100 of the present application mainly comprises a base body 1, a source module 2, a rotating assembly 3, a indexing assembly 4, a converging assembly 5, a adapter disc assembly 6 and a applicator 7, wherein the base body 1 mainly serves as a mounting carrier for the indexing assembly 4, the adapter disc 5 and the like components, the source module 2 can provide a true source or a false source, one or more source modules 2 are arranged on the base body through the rotating assembly 3, the rotating assembly is mainly used to realize the alignment of the source module 2 and the indexing assembly 4, and the indexing assembly 4, the converging assembly 5 and the adapter disc assembly 6 are mainly used to cooperate to construct a path capable of making the true source or the false source accurately reach the applicator 7.

[0062] In one possible implementation, an indexing plate 41 and a connecting pipe tray support 51 are provided on the base 1, and the rotating assembly 3 is disposed on the first side of the indexing plate 41. Figure 1 (Left side, rear side), one or more source modules 2 can be mounted on the substrate via a rotating assembly, and the convergence layer of the indexing assembly 4 is disposed on the second side of the indexing plate 41. Figure 1 (Right side, front). Obviously, those skilled in the art can determine the structural form of the substrate according to actual needs, such as reserving installation space for corresponding components on an integrally formed irregular structure.

[0063] In one possible implementation, the rotating assembly 3 mainly includes a driving unit, a rotating frame 32, and a support shaft 33. In this implementation, the support shaft 33 is fixedly disposed on the base 1. For example, the support shaft is a hollow cylindrical structure. The rotating frame 32 is pivotally disposed on the support shaft 33. The driving unit can drive the rotating frame to rotate relative to the support shaft and the base.

[0064] In one possible implementation, the drive unit mainly includes a drive component (actuator) 311 and a transmission mechanism. The drive component is connected to the rotating frame through the transmission mechanism, thereby driving the rotating frame to rotate relative to the base. For example, the drive component can be fixedly mounted on the rotating frame or the support shaft, and correspondingly, the transmission mechanism is mounted on the support shaft or the rotating frame. The drive component can be a drive motor, a power cylinder (such as a hydraulic cylinder, pneumatic cylinder, electric cylinder, etc.), or a rotating module (such as a combination of a motor and a gear pair, etc.). The transmission mechanism can be a gear pair, a belt drive mechanism, a connecting rod assembly, etc. In this example, the drive component is mounted on the support shaft, and the transmission mechanism is a gear pair, which includes a gear 3121 and a gear ring 3122. The power output shaft of the drive component is connected to the gear, and the gear ring is mounted on the inner wall of the support shaft. The gear can mesh with the inner side of the gear ring.

[0065] In one possible implementation, the rotating frame 32 is generally a ring-shaped structure, and a plurality of source module mounting positions 321 are provided on the rear surface of the ring-shaped structure along its circumference. The source module can be detachably mounted on the source module mounting position. In this example, there are 7 source module mounting positions 321. Obviously, those skilled in the art can determine the structural form, number and distribution of the source module mounting positions according to actual needs.

[0066] In a possible implementation, the source module can be arranged on the mounting position in a push-pull manner. In this way, when the source module needs to be repaired, the source module can be pulled out, and after the repair is completed, the source module can be directly pushed in and locked, which is convenient to operate. For example, a first sliding structure 322 is arranged at a position corresponding to each source module mounting position, and a second sliding structure capable of being matched and connected with the first sliding structure is arranged on the source module. In this way, the push-pull operation of the source module can be realized through the cooperation of the first sliding structure and the second sliding structure. For example, in the present example, the first sliding structure is a double sliding rail arranged on the mounting position, and the second sliding structure can be a double sliding groove matched with the double sliding rail. Obviously, those skilled in the art can determine the specific form of the first / second sliding structure according to actual needs, for example, the first / second sliding structure can be transposed, the sliding rail can be arranged as a sliding rail pair sliding along a vertical plane (the second sliding structure is located on the side of the source module), a combination of a sliding block and a sliding rail, a combination of a sliding groove and a shaft, etc. In addition, in addition to being push-pull, the source module can also be detached from the rotating frame through other ways such as clamping, engagement / disengagement switching by means of a clutch device, etc.

[0067] Referring primarily to Figure 3 and Figure 4 In a possible implementation, the indexing assembly 4 mainly includes an indexing plate 41 arranged on the base body, and the indexing plate is provided with through indexing holes 411 along the circumferential direction thereof. The converging assembly 5 mainly includes a converging layer 51, and the converging layer contains converging channels 511 equal in number to the indexing holes on the indexing plate. The adapter disc assembly 6 includes an adapter disc 61 and an adapter disc support 62, and the adapter disc 61 is arranged on the base body through the adapter disc support 62. The adapter disc 51 is arranged at the end of the converging layer (away from the indexing plate), and the adapter disc 61 is provided with adapter holes 611 equal in number to the converging channels. The support shaft 33 of the cylindrical structure is fixedly arranged on the first side (left side) of the indexing plate, and under the driving of the rotating assembly 3, the source outlet holes on the source module 2 can be coaxially aligned with the indexing holes. For example, in the present example, since the rotating frame is a ring-shaped structure, the indexing holes 411, the converging channels 511, and the adapter holes 611 all include a group of substantially ring-shaped structures.

[0068] Referring primarily to Figure 5 In a possible implementation, the source module 2 mainly includes a cable winding mechanism 21, a source cable 22 carrying a radioactive source 221, a source storage tank 23, and a support structure 24. The source module can accommodate both a source cable with a real source and a source cable with a fake source. For example, in the present example, the support structure is substantially a Z-shaped structure (mainly including a first horizontal portion 241 on the upper side, a second horizontal portion 242 on the lower side, and a vertical portion 243 connecting the two), and the second horizontal portion is provided with a second sliding structure 2421 on the lower side, for example, the second sliding structure is a downward protruding track, and the cable winding mechanism is located on the first side of the vertical portion.Figure 5 The source tank is installed on the second side of the vertical part (the right side in FIG. 1) and the first lateral part, and the source tank is provided with a through hole for the source cable to pass through, and the source cable is arranged on the winding mechanism, and under the driving of the winding mechanism, the end of the source cable can be withdrawn into the source tank or extended out of the source tank by a certain length. Figure 5

[0069] In this example, the winding mechanism 21 mainly includes an axle 211, a cable wheel 212, a winding motor 213, a winding transmission mechanism 214, an emergency source returning transmission mechanism 215, an emergency source returning shaft 216, an emergency source returning motor 217 and a manual source returning handle 218. The axle is rotatably arranged on the first lateral part of the support plate, and the part above the first lateral part is sequentially provided, from bottom to top, with the cable wheel for winding the source cable and the emergency source returning transmission mechanism. The part below the first lateral part is connected with the winding motor through the winding transmission mechanism, and the winding motor can be installed on the support structure through a motor support. The part above the first lateral part of the emergency source returning shaft is provided with the limiting frame, the emergency source returning transmission mechanism and the manual source returning handle. The part below the first lateral part of the emergency source returning shaft is connected with the emergency source returning motor through the clutch and the coupling, and the emergency source returning motor can be installed on the support plate through a motor support. The clutch is arranged between the emergency source returning motor and the emergency source returning transmission mechanism. In this example, the limiting frame with a generally U-shaped structure is installed on the emergency source returning shaft at both ends, and the rotation range of the winding mechanism can be limited. In this embodiment, the winding motor drives the cable wheel to rotate through the axle, the small gear above the cable wheel drives the large gear to rotate, and the large gear is provided with a stopper. When the source cable is withdrawn into the source tank to a certain position, the stopper abuts against the limiting frame, so that the motor is prevented from being misoperated to pull the radioactive source to the cable wheel. Based on this, the emergency source returning can include two ways. One is that the emergency source returning motor is controlled (such as remotely controlled), the emergency source returning motor drives the source wheel to rotate through the emergency source returning transmission mechanism, the source cable is wound and the radioactive source is withdrawn into the source tank. Specifically, when the emergency source returning is needed, the clutch engages the emergency source returning motor and the emergency source returning transmission mechanism, so that the power of the emergency source returning motor is transmitted to the emergency source returning shaft. In this way, the cable wheel is driven to rotate through the gear transmission, and the radioactive source can be withdrawn into the source tank. The other is that the manual source returning handle is manually rotated, the manual source returning handle drives the source wheel to rotate through the emergency source returning transmission mechanism, the source cable is wound and the radioactive source is withdrawn into the source tank. Obviously, this is only an exemplary description of the source module, and the specific form of the source module can be determined according to the actual needs by those skilled in the art.

[0070] Mainly refer to Figure 6 ​The working principle of the afterloading treatment device 100 is as follows: the driving part of the rotating assembly drives the rotating frame 32 to rotate, so that each source module 2 and the corresponding indexing hole 411 on the indexing plate 41 are aligned. Based on this, the radioactive source (real source or dummy source) 221 can be controlled to reach the source applicator 7 through the set indexing hole 411 according to the plan. Specifically, the cable motor drives the cable wheel to rotate, so that the real source or the dummy source is driven by the source cable to extend out of the source storage tank, and then passes through the indexing hole 411, the converging pipe 511, the connecting hole 611, and the source guide pipe 71 to reach the source applicator 7, so as to reach the irradiation position corresponding to the current treatment.

[0071] Embodiment Two

[0072] With reference mainly to Figures 7 to 11 In this embodiment, the rotating frame 32 includes three, and three rotating frames 32 are arranged on the three supporting shafts 33 of the three cylindrical structures arranged in layers from the inside to the outside in the circumferential direction, and each rotating frame is configured with an independent driving part. In this example, the driving part 311 of the driving part corresponding to the rotating frame of the outermost layer and the middle layer can be installed on one of the source module installation positions, and the driving part 311 of the driving part corresponding to the rotating frame of the innermost layer can be installed on the inner wall of the supporting shaft 33. In this example, the transmission mechanism is a gear pair, the power output shaft of the driving part is connected with the gear 3121 of the gear pair, the gear ring 3122 of the gear pair is installed on the outer wall of the supporting shaft, and the gear can be connected with the outer side of the gear ring. Correspondingly, the indexing plate 41 is provided with three layers of indexing holes 411 distributed in the radial direction, the converging layer 51 is provided with three layers of converging pipes 511 distributed in the radial direction, and the connecting hole disc 61 is provided with three layers of connecting holes 611 distributed in the radial direction. The source module 2 and other structures are similar to those in Embodiment One, and will not be described here.

[0073] Embodiment Three

[0074] With reference mainly to Figures 12 to 14In this embodiment, the radially layered rotating frame 32 is similar to that of embodiment two, except that the multiple layers of rotating frame are fixedly connected or integrally formed, such as in this embodiment, the multiple layers of rotating frame are connected to each other through the plate-shaped connecting portion 323, and the through hole 324 allowing the source cable to pass through is arranged on the connecting portion corresponding to the position of the source module. The multiple layers of rotating frame 32 share one driving part, such as in this example, the radially innermost rotating frame has five source module mounting positions, the middle layer has ten source module mounting positions, and the radially outermost rotating frame has fifteen source module mounting positions. The base 1 is provided with a stand 11, and the driving part 311 is installed on the stand 11. The power output end of the driving part 311 is connected with the support shaft 33, the support shaft 33 is pivotally arranged on the indexing plate 41, and the support shaft 33 is fixedly connected with the combination of the multiple rotating frames 32. Such as in this example, the support shaft 33 is fixedly connected with the radially innermost rotating frame 32, and the radially innermost rotating frame is approximately columnar structure, and the center of the columnar structure has an axle hole 325 capable of cooperating with the support shaft 33.

[0075] Embodiment four

[0076] Mainly referring to Figure 15 And Figure 16 Different from the aforementioned embodiment one, in this embodiment, the converging assembly 5 and the connecting assembly 6 are omitted between the downstream side of the indexing assembly 4 and the source applicator 7, and the source applicator path of the radioactive source can be constructed by directly connecting the upstream end of the source guide tube 71 to the indexing hole 411 of the indexing assembly 4. It can be understood that the construction method of the source applicator path in this embodiment is also applicable to the aforementioned embodiments two and three, in other words, the source applicator path of embodiments two and three can also be simplified, and on this basis, according to actual needs, the multiple source modules 2 are configured to the afterloading treatment device 100 of the multiple layers of rotating frame 32.

[0077] 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 related technical features without deviating from the principles of the present application, and the technical schemes after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A brachytherapy device, characterized in that, The afterloading therapy device comprises a base, a plurality of source modules for placing real sources or dummy sources, a rotating assembly arranged on the base and comprising a rotating frame provided with a plurality of source module mounting positions, the source modules being arranged on the base in a rotatable manner through the rotating assembly, and an indexing assembly comprising an indexing plate and a plurality of indexing holes corresponding to the plurality of source modules arranged on the indexing plate; wherein, viewed along a source application path of the real sources or dummy sources, the indexing assembly is arranged on a downstream side of the rotating assembly; the afterloading therapy device further comprises a converging assembly comprising a converging layer and a plurality of converging pipelines corresponding to the plurality of indexing holes arranged on the converging layer, and a pipe connecting assembly comprising a pipe connecting disc support and a plurality of pipe connecting disc holes corresponding to the plurality of converging pipelines arranged on the pipe connecting disc support; wherein, the converging assembly is arranged between the indexing assembly and the pipe connecting assembly. The afterloading therapy device comprises a driving part, the driving part comprising a driving component, a support shaft arranged on the base, the driving component being able to drive the rotating frame to rotate and thus drive the source modules arranged on the rotating frame to move; the rotating frame is in a ring structure, the driving component is able to drive the rotating frame to rotate around its axis; the rotating frame comprises one or a plurality of ring structures distributed in a radial direction, one or a plurality of the support shafts corresponding to the one or a plurality of rotating frames are fixedly arranged on the base, and one or a plurality of the driving components corresponding to the one or a plurality of rotating frames are able to drive a plurality of rotating frames to rotate relative to the corresponding support shafts in an independent manner; the support shaft is in a cylindrical structure, the rotating frame is arranged on the outer wall of the support shaft, the driving part further comprises a transmission mechanism, the transmission mechanism comprising a gear connected with the power output end of the driving component, and a gear ring arranged on the inner wall or the outer wall of the cylindrical structure, the gear being able to mesh with the gear ring, and thus the driving component is connected with the support shaft in a rotating manner through the transmission mechanism; the rotating frame comprises one or a plurality of ring structures distributed in a radial direction, the support shaft is fixedly arranged on the rotating frame, in the case where the ring structure comprises one, the driving component is able to drive the support shaft to rotate synchronously with the rotating frame; in the case where the ring structure comprises a plurality, the driving component is able to drive the support.

2. The afterloader according to claim 1, characterized in that, The rotating frame comprises one or a plurality of ring structures distributed in a radial direction, in the case where the rotating frame comprises a plurality, the indexing plate is provided with a plurality of groups of indexing holes corresponding to the plurality of ring structures, the converging layer is provided with a plurality of groups of converging pipelines corresponding to the plurality of ring structures, and the pipe connecting disc support is provided with a plurality of groups of pipe connecting disc holes corresponding to the plurality of ring structures.

3. The afterloader of claim 1, wherein, The source modules are arranged on the source module mounting positions in a detachable manner.

4. The afterloader of claim 3, wherein, The rotating frame is provided with a first sliding structure at a position corresponding to the source module mounting position, the source module comprises a support structure provided with a second sliding structure thereon and a source storage tank capable of providing a real source or a fake source; the source module can be provided in the source module mounting position in a push-pull manner by means of sliding connection of the first sliding structure and the second sliding structure.

Images