CN221014212U - Source applicator for esophagus cancer brachytherapy - Google Patents
Source applicator for esophagus cancer brachytherapy Download PDFInfo
- Publication number
- CN221014212U CN221014212U CN202322143666.XU CN202322143666U CN221014212U CN 221014212 U CN221014212 U CN 221014212U CN 202322143666 U CN202322143666 U CN 202322143666U CN 221014212 U CN221014212 U CN 221014212U
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- CN
- China
- Prior art keywords
- air bag
- inflatable
- applicator
- brachytherapy
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 208000000461 Esophageal Neoplasms Diseases 0.000 title claims abstract description 21
- 201000004101 esophageal cancer Diseases 0.000 title claims abstract description 21
- 238000002725 brachytherapy Methods 0.000 title claims abstract description 19
- 210000003238 esophagus Anatomy 0.000 claims abstract description 18
- 206010030155 Oesophageal carcinoma Diseases 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001959 radiotherapy Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The utility model discloses an applicator for esophagus cancer brachytherapy, which relates to the technical field of medical equipment, and comprises an application tube and an air bag assembly, wherein the air bag assembly is connected with the air bag assembly through an air inflation tube; the inflatable module comprises an outer frame, an inflatable air bag is arranged in the outer frame, the bottom of the inflatable air bag is connected with an inflatable tube through an inflatable opening, a pressing plate is slidably connected in the outer frame and abuts against one end of the inflatable air bag, which is far away from the inflatable opening, a pressing rod is arranged at one end of the pressing plate, which is far away from the inflatable air bag, a first locking block is arranged on the pressing plate, and a plurality of second locking blocks which are matched with the first locking blocks are arranged on the outer frame. The utility model provides an applicator for esophagus cancer brachytherapy, which can intuitively observe the inflation amount of an air bag entering an esophagus so as to effectively control the inflation amount of the air bag in the esophagus.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an applicator for esophagus cancer brachytherapy.
Background
Esophageal cancer is a common malignant tumor in China, 80% of patients are middle and late stages, the patients cannot be radically treated through operations, the service life of the patients is prolonged mainly through radiotherapy, and the radiotherapy of the esophageal cancer at present mostly adopts an in vitro radiotherapy combined with an esophageal cavity and then is put into a radiotherapy mode.
The following drawbacks exist mainly for the post-loading treatment regimen: 1) The applicator is not easy to fix in the esophagus, so that the distance between the tumor and the radioactive source is difficult to maintain in multiple treatments, the dosage of the radioactive source is difficult to accurately grasp, and the treatment effect is greatly reduced; 2) Insertion of the applicator tube into the esophagus can cause damage to the mucosa in the normal area of the inner wall of the esophagus.
For this reason, the prior art (patent application number CN 201820557313.0) discloses an applicator for brachytherapy of esophageal cancer, which can fix an applicator tube and support the esophagus to overcome the above-mentioned drawbacks, but the inflation mode is a conventional inflation mode, and the inflation amount of an air bag entering the esophagus cannot be intuitively observed.
Therefore, the utility model provides the applicator for the esophagus cancer brachytherapy, which can intuitively observe the inflation amount of the air bag entering the esophagus so as to effectively control the inflation amount of the air bag in the esophagus.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides an applicator for esophagus cancer brachytherapy.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
An applicator for brachytherapy of esophageal cancer is characterized by comprising an applicator tube and an air bag assembly, wherein the air bag assembly is connected with the air bag assembly through an air inflation tube;
The inflatable module comprises an outer frame, an inflatable air bag is arranged in the outer frame, the bottom of the inflatable air bag is connected with an inflatable tube through an inflatable opening, a pressing plate is connected in the outer frame in a sliding mode, the pressing plate abuts against one end, far away from the inflatable opening, of the inflatable air bag, a pressing rod is arranged at one end, far away from the inflatable air bag, of the pressing plate, a first locking block is arranged on the pressing plate, and a plurality of second locking blocks matched with the first locking block are arranged on the outer frame.
Further, the air bag assembly comprises an end air bag and an outer air bag, the end air bag is arranged at one end of the source applying pipe extending out of the esophagus, the outer air bag is fixedly connected to the outer wall of the source applying pipe, and the two air bags are respectively connected with the two air inflation assemblies through two air inflation pipes.
Further, the outer frame is of a cylindrical structure, the inside of the outer frame is hollow and is used for placing an inflatable airbag and is matched with the pressing plate, a strip-shaped opening is formed in the outer wall of the outer frame, the second locking block is arranged on one side of the strip-shaped opening, and the first locking block extends outwards from the strip-shaped opening.
Furthermore, the strip-shaped openings are provided with at least two groups and are symmetrically arranged, the strip-shaped openings are provided with second locking blocks, and the pressing plates are provided with first locking blocks corresponding to the strip-shaped openings.
Further, the end portion of the second locking block, which is close to the strip-shaped opening, is provided with an arc transition, and the end portion of the first locking block, which is close to the second locking block, is provided with an arc transition.
Furthermore, the second locking blocks are equidistantly distributed on one side of the strip-shaped opening, and scales are correspondingly arranged on the second locking blocks.
Further, a handle is arranged at the end part of the compression bar.
Further, the outer wall of the inflatable air bag is of a corrugated pipe structure, and a spring is arranged inside the inflatable air bag.
Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides an applicator for esophagus cancer brachytherapy, which can intuitively observe the inflation amount of an air bag entering an esophagus so as to effectively control the inflation amount of the air bag in the esophagus.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
Fig. 1 is a schematic view of the overall structure of an applicator.
Fig. 2 is a schematic structural view of an inflation assembly.
FIG. 3 is a schematic structural view of a compression bar and related components.
Fig. 4 is a schematic structural view of the outer frame.
Fig. 5 is a schematic structural view of an inflatable airbag.
In the figure: 1. an inflation assembly; 2. a source applying pipe; 3. an outer balloon; 4. an end air bag; 5. a handle; 6. a compression bar; 7. an outer frame; 8. an inflatable airbag; 9. an inflation inlet; 10. a first locking block; 11. and a second locking block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "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 present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-5, an applicator for brachytherapy of esophageal cancer comprises an applicator tube 2 and an air bag assembly connected with an inflation assembly 1 through an inflation tube;
The inflatable module 1 comprises an outer frame 7, an inflatable air bag 8 is arranged in the outer frame 7, the bottom of the inflatable air bag 8 is connected with an inflatable tube through an inflatable opening 9, a pressing plate is connected in the outer frame 7 in a sliding mode and abuts against one end, far away from the inflatable opening 9, of the inflatable air bag 8, a pressing rod 6 is arranged at one end, far away from the inflatable air bag 8, of the pressing plate, a first locking block 10 is arranged on the pressing plate, and a plurality of second locking blocks 11 matched with the first locking block 10 are arranged on the outer frame 7.
When in use, the source applying tube 2 before inflation is inserted into the nasal cavity from one end of the end air bag 4, passes through the esophagus, and when the end air bag 4 just reaches the stomach, the opposite end air bag 4 is inflated, the end air bag 4 is inflated to be larger, and is blocked in the stomach, so that the source applying device is prevented from falling off during treatment; the outer air bag 3 is arranged in the esophagus, after the outer air bag 3 is inflated, the outer air bag 3 is inflated to reduce damage to normal esophagus mucous membrane, the two air bags are made of elastic materials, and when the outer air bag is not inflated, the volume is smaller, the outer diameter of the outer air bag is basically consistent with the outer diameter of the source applying tube 2, the outer air bag is more fit, and the source applying device is convenient to insert into the esophagus;
When two air bags are inflated, the compression rod 6 is pushed into the outer frame 7 to compress the inflatable air bags 8, and the outer frame is of a frame structure, so that the inflation amount can be intuitively sensed when the inflatable air bags 8 are compressed, and after a certain inflation amount is reached, the position of the pressing plate is fixed by utilizing the cooperation of the first locking block 10 and the second locking block 11, so that the pressing plate is prevented from continuously moving.
In other preferred embodiments, the air bag assembly comprises an end air bag 4 and an outer air bag 3, wherein the end air bag 4 is arranged at one end of the source applying tube 2 extending out of the esophagus, the outer air bag 3 is fixedly connected to the outer wall of the source applying tube 2, the two air bags are respectively connected with the two air inflation assemblies 1 through two air inflation tubes, and the two air bags are independently arranged and independently supply air, so that effective control of the inflation amount can be ensured.
In other preferred embodiments, the outer frame 7 has a cylindrical structure, and is hollow in the interior, for placing the inflatable bladder 8 and adapting to the pressing plate, and the outer wall is provided with a strip-shaped opening, and the second locking block 11 is disposed on one side of the strip-shaped opening, and the first locking block 10 extends outwards from the strip-shaped opening.
Specifically, the strip opening is provided with two at least groups to the symmetry sets up, and strip opening part all is provided with second locking piece 11, and the clamp plate corresponds strip opening part and all is provided with first locking piece 10, and the outer wall of inflatable balloon 8 is the bellows structure, and inside is provided with the spring, at the clamp plate to inflatable balloon 8 suppression in-process, can make comparatively firm the supporting of first locking piece 10 on second locking piece 11 through the effect of spring.
Specifically, the end portion of the second locking block 11 adjacent to the strip-shaped opening is provided with arc transition, the end portion of the first locking block 10 adjacent to the second locking block 11 is provided with arc transition, and the second locking block 11 is equidistantly distributed on one side of the strip-shaped opening and is correspondingly provided with scales. By the arrangement of the structure, the inflation amount of the outer air bag 3 and the end air bag 4 can be better observed, and the first locking block 10 can be smoothly screwed into the position of the second locking block 11.
Specifically, the end of the plunger 6 is provided with a handle 5 to facilitate the operator to feed the plunger 6 inwardly.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. An applicator for brachytherapy of esophageal cancer is characterized by comprising an applicator tube and an air bag assembly, wherein the air bag assembly is connected with the air bag assembly through an air inflation tube;
The inflatable module comprises an outer frame, an inflatable air bag is arranged in the outer frame, the bottom of the inflatable air bag is connected with an inflatable tube through an inflatable opening, a pressing plate is connected in the outer frame in a sliding mode, the pressing plate abuts against one end, far away from the inflatable opening, of the inflatable air bag, a pressing rod is arranged at one end, far away from the inflatable air bag, of the pressing plate, a first locking block is arranged on the pressing plate, and a plurality of second locking blocks matched with the first locking block are arranged on the outer frame.
2. The applicator for brachytherapy of esophageal cancer according to claim 1, wherein the balloon assembly comprises an end balloon and an outer balloon, the end balloon is disposed at one end of the applicator tube extending out of the esophagus, the outer balloon is fixedly connected to the outer wall of the applicator tube, and the two balloons are respectively connected with the two inflation assemblies through two inflation tubes.
3. The applicator for brachytherapy of esophageal cancer according to claim 1, wherein the outer frame has a cylindrical structure, is hollow in the interior thereof, is used for placing an inflatable balloon and is adapted to the pressure plate, a strip-shaped opening is formed in the outer wall, the second locking block is disposed at one side of the strip-shaped opening, and the first locking block extends outwards from the strip-shaped opening.
4. An applicator for brachytherapy of esophageal cancer according to claim 3, wherein at least two sets of strip-shaped openings are symmetrically arranged, second locking blocks are arranged at the strip-shaped openings, and first locking blocks are arranged at the corresponding strip-shaped openings of the pressing plate.
5. An applicator for brachytherapy of esophageal cancer according to claim 3, wherein the end of the second locking piece adjacent the strip-shaped opening is provided with an arcuate transition, and the end of the first locking piece adjacent the second locking piece is provided with an arcuate transition.
6. An applicator for brachytherapy of esophageal cancer according to claim 3, wherein said second locking pieces are equally spaced on one side of said strip-shaped opening and are correspondingly provided with graduations.
7. An applicator for brachytherapy of esophageal cancer according to claim 1, wherein the end of the plunger is provided with a handle.
8. The applicator for brachytherapy of esophageal cancer of claim 1, wherein the outer wall of the inflatable balloon is bellows-structured with a spring disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322143666.XU CN221014212U (en) | 2023-08-09 | 2023-08-09 | Source applicator for esophagus cancer brachytherapy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322143666.XU CN221014212U (en) | 2023-08-09 | 2023-08-09 | Source applicator for esophagus cancer brachytherapy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221014212U true CN221014212U (en) | 2024-05-28 |
Family
ID=91170747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322143666.XU Active CN221014212U (en) | 2023-08-09 | 2023-08-09 | Source applicator for esophagus cancer brachytherapy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221014212U (en) |
-
2023
- 2023-08-09 CN CN202322143666.XU patent/CN221014212U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |