Esophageal cancer radiotherapy positioning device
By introducing a rotatable mounting shell and insertion rod structure into the esophageal cancer radiotherapy positioning device, the problem of fixed measurement direction in existing devices has been solved, enabling flexible adjustment and stable fixation, and improving the positioning accuracy of the lesion area model.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广州医科大学附属番禺中心医院(广州市番禺区中心医院 广州市番禺区人民医院)
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing radiotherapy localization devices for esophageal cancer can only measure data between substrates when measuring the lesion area. It is difficult to extrapolate the lesion model based on the distance between the boundary point and the lesion area. Furthermore, the measurement direction is fixed after the substrate is fixed and cannot be flexibly adjusted.
An esophageal cancer radiotherapy positioning device was designed, which includes a positioning and measuring mechanism and a boundary limiting mechanism. The orientation of the measuring scale is adjusted by a rotatable mounting shell, and the position of the mounting shell is fixed by a socket and a rod, so as to achieve flexible adjustment of the measuring scale and stable fixation of the base plate.
It improves the localization accuracy of the lesion area model, allows for flexible measurement of the distance between each point in the lesion area and the boundary points, facilitates the deduction of the lesion area model, and enhances the flexibility and accuracy of localization.
Smart Images
Figure CN224484173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a radiotherapy positioning device, and more particularly to a radiotherapy positioning device for esophageal cancer, belonging to the field of radiotherapy positioning technology. Background Technology
[0002] Esophageal cancer is a common malignant tumor, and its treatment usually includes surgery, chemotherapy and radiotherapy. Among them, radiotherapy is an important treatment method that can precisely target cancer cells, inhibit tumor growth and improve patient survival rate. Before radiotherapy for esophageal cancer, it is necessary to accurately determine the upper and lower boundaries of the esophageal lesion in order to achieve the purpose of precise radiotherapy. At present, the main means of determining the upper and lower boundaries of esophageal cancer lesions during barium swallow examination.
[0003] Chinese patent application (CN202320630855.7) discloses a radiotherapy positioning device for esophageal cancer. It is designed with an adhesive structure, a fixing structure, and a winding structure. In use, the adhesive layer on the adhesive structure can be directly adhered to the patient. At the same time, the fixing structure fixes the distance between the two substrates, so that the substrates are not easily moved with the patient's movement, and thus the position marked by the lead ball is not easily changed. However, in use, since the two substrates need to be on the same straight line, the scale position is fixed after the substrates are fixed, resulting in a fixed measurement direction. It is only suitable for data measurement between the two substrates and is not convenient for deriving lesion models based on the distance between the boundary point and the lesion area.
[0004] To address the aforementioned technical issues, a radiotherapy positioning device for esophageal cancer is proposed. Utility Model Content
[0005] In view of this, the present invention provides a radiotherapy positioning device for esophageal cancer to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.
[0006] The technical solution of this utility model is as follows: an esophageal cancer radiotherapy positioning device, including a positioning and measuring mechanism and a boundary limiting mechanism;
[0007] The positioning and measuring mechanism includes a first base plate and a mounting shell. A rotating shaft is fixedly connected to the bottom of the mounting shell. One end of the rotating shaft is rotatably connected to the first base plate. A winding shaft is rotatably connected inside the mounting shell. A measuring scale is wound around and fixedly connected to the outside of the winding shaft. One end of the measuring scale passes through the mounting shell. A fixing ring is fixedly connected to the end of the measuring scale that passes through the mounting shell.
[0008] The boundary limiting mechanism includes a second substrate and a grip rod. The grip rod is fixedly connected to the top of the second substrate. Rubber sleeves are fitted and fixedly connected to the outer sides of both the first substrate and the second substrate. An adhesive layer is provided at the bottom of the rubber sleeves. A fixing rod is fixedly connected to one side of the top of the second substrate.
[0009] More preferably, a fixing plate is fixedly connected to one side of both the first substrate and the second substrate, the fixing plate passing through the rubber sleeve, and a lead ball is fixedly connected to the bottom of the fixing plate.
[0010] More preferably, the bottom of the adhesive layer is provided with an anti-sticking film.
[0011] More preferably, a connecting rod extends through the top of the mounting shell, and a pressure block is fixedly connected to one end of the connecting rod inside the mounting shell. A spring is fixedly connected to the top of the pressure block, and one end of the spring is fixedly connected to the mounting shell.
[0012] More preferably, a guide shaft is rotatably connected to the inner side of the mounting housing.
[0013] More preferably, one end of the winding shaft passes through the mounting housing, and a knob is fixedly connected to the end of the winding shaft that passes through the mounting housing.
[0014] More preferably, the top of the first substrate has an insertion hole, and one side of the mounting shell has a sliding groove. A slider is slidably connected inside the sliding groove, and a plug rod is fixedly connected to the bottom of the slider. The plug rod engages with the first substrate through the insertion hole.
[0015] The present invention has the following advantages due to the adoption of the above technical solution:
[0016] I. This utility model uses a rotatable mounting shell to fix the measuring scale, so that after the measuring scale is fixed to the first substrate and the second substrate, it can be separated from the second substrate. Then, the mounting shell can be rotated to adjust the orientation angle of the measuring scale, which facilitates the measurement of the distance between each point in the lesion area and the boundary point of the first substrate. This makes it easier to use the acquired data to deduce the lesion area model and improve the positioning accuracy.
[0017] Second, this utility model uses a plug rod and a plug hole to make it easy to fix the position of the mounting shell, preventing the mounting shell from rotating and causing the two to be out of line when the first substrate and the second substrate are installed.
[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural diagram of the present invention;
[0021] Figure 2 This is a structural diagram of the second substrate in this utility model;
[0022] Figure 3 This is a diagram showing the connection structure of the first substrate in this utility model;
[0023] Figure 4 This is a partial cross-sectional view of the second substrate in this utility model;
[0024] Figure 5 This is a cross-sectional view of the mounting shell in this utility model.
[0025] Reference numerals: 10. Positioning and measuring mechanism; 11. First base plate; 12. Insertion hole; 13. Rotating shaft; 14. Mounting shell; 15. Slide groove; 16. Slider; 17. Insert rod; 18. Measuring scale; 19. Knob; 41. Connecting rod; 42. Spring; 43. Pressure block; 44. Rewinding shaft; 45. Guide shaft; 46. Fixing ring; 20. Boundary limiting mechanism; 21. Second base plate; 22. Fixing rod; 23. Grip rod; 31. Rubber sleeve; 32. Adhesive layer; 33. Anti-stick film; 34. Fixing plate; 35. Lead ball. Detailed Implementation
[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0028] like Figure 1-5 As shown, this embodiment of the present invention provides an esophageal cancer radiotherapy positioning device, which consists of a positioning and measuring mechanism 10 and a boundary limiting mechanism 20.
[0029] The positioning and measuring mechanism 10 includes a first base plate 11 and a mounting shell 14. A rotating shaft 13 is fixedly connected to the bottom of the mounting shell 14. One end of the rotating shaft 13 is rotatably connected to the first base plate 11. A winding shaft 44 is rotatably connected inside the mounting shell 14. A measuring scale 18 is wound around and fixedly connected to the outside of the winding shaft 44. A guide shaft 45 is rotatably connected to one side of the inside of the mounting shell 14. One end of the measuring scale 18 is wound around the outside of the guide shaft 45 and passes through the mounting shell 14. A fixing ring 46 is fixedly connected to the end of the measuring scale 18 that passes through the mounting shell 14. A connecting rod 41 passes through the top of the mounting shell 14. A pressure block 43 is fixedly connected to the end of the connecting rod 41 located inside the mounting shell 14. A spring 42 is fixedly connected to the top of the pressure block 43. One end of the spring 42 is fixedly connected to the mounting shell 14.
[0030] In one embodiment, in order to facilitate the rotation of the take-up shaft 44 to take up the measuring tape 18, one end of the take-up shaft 44 passes through the mounting housing 14, and a knob 19 is fixedly connected to the end of the take-up shaft 44 that passes through the mounting housing 14.
[0031] In one embodiment, in order to facilitate fixing the position of the mounting shell 14, the top of the first substrate 11 is provided with an insertion hole 12, and a sliding groove 15 is provided on one side of the mounting shell 14. A slider 16 is slidably connected inside the sliding groove 15, and a plug rod 17 is fixedly connected to the bottom of the slider 16. The plug rod 17 is engaged with the first substrate 11 through the insertion hole 12.
[0032] The boundary limiting mechanism 20 includes a second substrate 21 and a grip 23. The grip 23 is fixedly connected to the top of the second substrate 21, and a fixing rod 22 is fixedly connected to one side of the top of the second substrate 21.
[0033] Rubber sleeves 31 are fitted and fixedly connected to the outer sides of the first substrate 11 and the second substrate 21. An adhesive layer 32 is provided at the bottom of the rubber sleeve 31. The positions of the first substrate 11 and the second substrate 21 are fixed by the adhesive layer 32. The rubber sleeve 31 is used to wrap the first substrate 11 and the second substrate 21, making the contact surface with the human body softer and enhancing the fit with the human body.
[0034] In one embodiment, to facilitate the confirmation of boundary points, a fixing plate 34 is fixedly connected to one side of both the first substrate 11 and the second substrate 21. The fixing plate 34 passes through the rubber sleeve 31, and a lead ball 35 is fixedly connected to the bottom of the fixing plate 34.
[0035] In one embodiment, an anti-adhesive film 33 is provided at the bottom of the adhesive layer 32 to prevent damage to the adhesive layer 32 that could lead to weak adhesion.
[0036] In operation, this invention works as follows: During a barium meal radiography procedure, the first substrate 11 and the second substrate 21 are adhered to the patient's skin via an adhesive layer 32 according to the radiography results. The two lead balls 35 are aligned with the upper and lower boundaries of the lesion area. At this time, the connecting rod 41 is pulled up so that the pressure block 43 does not contact the measuring scale 18. The fixing ring 46 is pulled to move the measuring scale 18 out, so that the fixing ring 46 is hung on the fixing rod 22. The distance between the upper and lower boundaries can then be measured. The fixing ring 46 is removed, and the slider 16 is moved up so that the insertion rod 17 is moved out of the insertion hole 12. The orientation of the measuring scale 18 can then be adjusted according to the radiography results. The measuring scale 18 is pulled closer to the edge points of the lesion area to measure the distance between each point in the lesion area and the boundary point.
[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A radiotherapy positioning device for esophageal cancer, characterized in that: It includes a positioning and measuring mechanism (10) and a boundary limiting mechanism (20); The positioning and measuring mechanism (10) includes a first base plate (11) and a mounting shell (14). A rotating shaft (13) is fixedly connected to the bottom of the mounting shell (14). One end of the rotating shaft (13) is rotatably connected to the first base plate (11). A winding shaft (44) is rotatably connected inside the mounting shell (14). A measuring scale (18) is wound around and fixedly connected to the outside of the winding shaft (44). One end of the measuring scale (18) passes through the mounting shell (14). A fixing ring (46) is fixedly connected to the end of the measuring scale (18) that passes through the mounting shell (14). The boundary limiting mechanism (20) includes a second base plate (21) and a grip (23). The grip (23) is fixedly connected to the top of the second base plate (21). A rubber sleeve (31) is fitted and fixedly connected to the outer side of both the first base plate (11) and the second base plate (21). An adhesive layer (32) is provided at the bottom of the rubber sleeve (31). A fixing rod (22) is fixedly connected to one side of the top of the second base plate (21).
2. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: A fixing plate (34) is fixedly connected to one side of the first substrate (11) and the second substrate (21). The fixing plate (34) passes through the rubber sleeve (31), and a lead ball (35) is fixedly connected to the bottom of the fixing plate (34).
3. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: The bottom of the adhesive layer (32) is provided with an anti-sticking film (33).
4. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: A connecting rod (41) extends through the top of the mounting shell (14). A pressure block (43) is fixedly connected to one end of the connecting rod (41) inside the mounting shell (14). A spring (42) is fixedly connected to the top of the pressure block (43). One end of the spring (42) is fixedly connected to the mounting shell (14).
5. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: A guide shaft (45) is rotatably connected to one side of the interior of the mounting housing (14).
6. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: One end of the take-up shaft (44) passes through the mounting housing (14), and a knob (19) is fixedly connected to the end of the take-up shaft (44) that passes through the mounting housing (14).
7. The esophageal cancer radiotherapy positioning device according to claim 1, characterized in that: The first substrate (11) has an insertion hole (12) on its top, and the mounting shell (14) has a sliding groove (15) on one side. A slider (16) is slidably connected inside the sliding groove (15), and a plug rod (17) is fixedly connected to the bottom of the slider (16). The plug rod (17) is engaged with the first substrate (11) through the insertion hole (12).