Vacuum pad for radiotherapy
By designing a fixation component on the vacuum pad for radiotherapy, the installation problem when changing different models of head molds was solved, enabling rapid replacement and fixation of the head molds and improving treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENZHOU NO 1 PEOPLES HOSPITAL
- Filing Date
- 2025-02-05
- Publication Date
- 2026-05-05
AI Technical Summary
The existing vacuum pads for radiotherapy require changing the mounting base when replacing different models of head molds, which wastes time and affects the treatment progress.
A vacuum pad for radiotherapy was designed, which uses a fixing component including a fixing plate, a limiting plate, a limiting post and a pushing spring to achieve rapid installation and fixation of head molds of different models.
The automatic fixation component enables rapid head mold replacement, reducing replacement time and improving treatment efficiency.
Smart Images
Figure CN224193950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to a vacuum pad for radiotherapy. Background Technology
[0002] Currently, vacuum cushions for radiotherapy are auxiliary devices used during radiotherapy. They primarily work by removing internal air, allowing them to mold to the patient's body contours and stabilize their position. This ensures the patient maintains a relatively stable posture during radiotherapy, improving accuracy and reducing errors caused by patient movement.
[0003] Currently, the positioning accuracy of the head and neck is extremely important in radiotherapy. Adaptable head molds of different sizes can better fit the patient's head and neck. For patients with head and neck tumors, precise positioning of the head mold ensures that the radiation accurately targets the tumor site while minimizing radiation to surrounding normal tissues. Therefore, head mold adaptation is extremely important. However, although replacing head molds on vacuum mats is relatively simple—simply aligning the fixing posts on the head mold with the holes on the mounting base—the positions of the fixing posts at the bottom of different head molds vary. When the fixing posts cannot fit the holes on the mounting base, the mounting base needs to be replaced, which is extremely time-consuming and delays the treatment progress. Therefore, it is necessary to design a vacuum mat that allows for the rapid installation of different head mold sizes. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a vacuum pad for radiotherapy.
[0005] This utility model is achieved using the following technical solution: a vacuum pad for radiotherapy, comprising a vacuum pad, the top of which has a support opening for placing a head support mold, the inside of which is provided with a head mold for supporting the patient's head, the inside of which is provided with a fixing component for fixing different sizes of head molds, the bottom of which is provided with an anti-slip component for preventing the vacuum pad from sliding, the fixing component including a fixing plate disposed at the bottom of the head mold and having two symmetrical sliding grooves, and a limiting plate that is slidably disposed inside each sliding groove.
[0006] With the above technical solution, when replacing the head mold, simply open the fixing component, take out the unsuitable head mold, put the head mold suitable for the patient into the fixing component of the support port, and then loosen the fixing component. The fixing component will automatically fix the head mold. With this setting, the staff only needs to open the fixing component to take out the unsuitable head mold, and release their hands to fix the replacement head mold. This makes the replacement of the head mold extremely convenient.
[0007] As a further improvement to the above solution, the opposing surfaces of the two limiting plates are provided with fixing grooves, and each fixing groove is adapted to the head mold base.
[0008] The above technical solution allows the limiting plate and fixing groove to fix and restrict the bottom of the head mold, preventing the head mold from shaking inside the support opening.
[0009] As a further improvement to the above solution, multiple limiting posts are fixedly installed inside both sliding grooves, and each limiting post slides in cooperation with the adjacent limiting plate.
[0010] Through the above technical solution, the limiting post will restrict the movement of the limiting plate inside the sliding groove, preventing the limiting plate from deviating.
[0011] As a further improvement to the above solution, each of the limiting posts is fitted with a push spring, and the two ends of each push spring abut against the adjacent limiting plate and the inner wall of the sliding groove, respectively.
[0012] With the above technical solution, the push spring will continuously push the limiting plate, so that the limiting plate will always maintain the fixing effect on the head mold.
[0013] As a further improvement to the above solution, baffles are rotatably installed on both sides of the fixed plate, a pull strip is fixedly installed on the top of each baffle, and one side of each baffle is in contact with the adjacent limiting plate.
[0014] Through the above technical solution, the baffle will hold the limiting plate in place, preventing the limiting plate from moving left and right and squeezing the pushing spring, which would cause the limiting plate to lose its fixing effect on the head mold.
[0015] As a further improvement to the above solution, the anti-slip component includes a fixing strip fixedly installed on the bottom of the vacuum pad and having multiple fixing holes, an anti-slip strip set at the bottom of the fixing strip, and an anti-slip plate fixedly installed on the bottom of the anti-slip strip. Multiple protrusions are fixedly installed on the top of the anti-slip strip, and each protrusion extends into the interior of an adjacent fixing hole.
[0016] With the above technical solution, the anti-slip strip is installed on the medical bed. In this way, you only need to place the fixing strip on the anti-slip strip and insert the protrusion into the fixing hole to fix the fixing strip. In this way, the vacuum pad will also be fixed and cannot be moved.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention, by setting up a fixing component, allows for easy replacement of the head mold. Simply open the fixing component, remove the unsuitable head mold, place the suitable head mold into the fixing component inside the support opening, and then loosen the fixing component. The fixing component will automatically fix the head mold in place. This design makes head mold replacement extremely convenient, requiring only that staff open the fixing component to remove the unsuitable head mold and release their hands to fix the replacement head mold. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This utility model Figure 1 A schematic diagram of the structure viewed from below;
[0021] Figure 3 This is a schematic diagram of the structure of the present invention with a fixing component;
[0022] Figure 4 This is a cross-sectional structural diagram of the present invention with a fixing component;
[0023] Figure 5 This is a cross-sectional structural diagram of the anti-slip component of this utility model.
[0024] Explanation of key symbols:
[0025] 1. Vacuum pad; 2. Support opening; 3. Head mold; 401. Fixing plate; 402. Limiting plate; 501. Fixing strip; 502. Anti-slip strip; 503. Anti-slip plate; 504. Protrusion; 6. Limiting post; 7. Push spring; 8. Baffle; 9. Pulling strip. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] Please combine Figures 1-5 This embodiment of a radiotherapy vacuum pad includes a vacuum pad 1. The top of the vacuum pad 1 has a support opening 2 for placing a head support mold. The inside of the support opening 2 is provided with a head mold 3 for supporting the patient's head. The inside of the support opening 2 is provided with a fixing component that can fix different sizes of head molds 3. The bottom of the vacuum pad 1 is provided with an anti-slip component to prevent the vacuum pad 1 from sliding.
[0028] When replacing the head mold 3, simply open the fixing component, take out the unsuitable head mold 3, put the head mold 3 suitable for the patient into the fixing component of the support port 2, and then loosen the fixing component. The fixing component will automatically fix the head mold 3. With this setup, staff only need to open the fixing component to take out the unsuitable head mold 3, and release their hands to fix the replacement head mold 3.
[0029] The fixing component includes a fixing plate 401 with two symmetrical sliding grooves set at the bottom of the head mold 3 and a limiting plate 402 slidably set inside each sliding groove. The opposing surfaces of the two limiting plates 402 are provided with fixing grooves, and each fixing groove is adapted to the base of the head mold 3.
[0030] The limiting plate 402, together with the fixing groove, can fix and restrict the bottom of the head mold 3, preventing the head mold 3 from shaking inside the support port 2.
[0031] Multiple limiting posts 6 are fixedly installed inside the two sliding grooves. Each limiting post 6 is slidably engaged with the adjacent limiting plate 402. Each limiting post 6 is fitted with a push spring 7. The two ends of each push spring 7 abut against the adjacent limiting plate 402 and the inner wall of the sliding groove, respectively.
[0032] The limiting post 6 restricts the movement of the limiting plate 402 inside the sliding groove to prevent the movement of the limiting plate 402 from deviating. The push spring 7 will continuously push the limiting plate 401, so that the limiting plate 401 will always maintain the fixing effect on the head mold 3.
[0033] Both sides of the fixed plate 401 are rotatably mounted with baffles 8, and each baffle 8 is fixedly mounted with a pull strip 9 on its top. One side of each baffle 8 is in contact with the adjacent limiting plate 402.
[0034] The baffle 8 will hold the limiting plate 402 in place, preventing the limiting plate 402 from moving left and right and squeezing the spring 7, which would cause the limiting plate 402 to lose its fixing effect on the head mold 3.
[0035] The anti-slip assembly includes a fixing strip 501 fixedly installed on the bottom of the vacuum pad 1 and having multiple fixing holes, an anti-slip strip 502 disposed at the bottom of the fixing strip 501, and an anti-slip plate 503 fixedly installed on the bottom of the anti-slip strip 502. Multiple protrusions 504 are fixedly installed on the top of the anti-slip strip 502, and each protrusion 504 extends into the interior of the adjacent fixing hole.
[0036] The anti-slip plate 503 is installed on the medical bed. Simply place the fixing strip 501 on the anti-slip strip 502 and insert the protrusion 504 into the fixing hole to fix the fixing strip 501. This will also fix the vacuum pad 1 so that it cannot move.
[0037] The implementation principle of a vacuum pad for radiotherapy in this embodiment is as follows: when the head mold 3 needs to be replaced, the pull bar 9 is lifted upward to make the baffle 8 rotate, so that the baffle 8 can no longer block the limiting plate 402, allowing the limiting plate 402 to slide inside the sliding groove.
[0038] The two limiting plates 402 slide on the limiting post 6 in a moving away direction, which will compress the push spring 7 and keep the push spring 7 in a compressed state. Due to the movement of the limiting plates 402, the bottom of the head mold 3 will lose the fixing effect of the limiting plates 402, and can be directly removed from the fixing plate 401.
[0039] Next, place the head mold 3 suitable for the patient on the fixing plate 401, loosen the two limiting plates 402, and the multiple push springs 7 will lose their squeezing force and unfold. The unfolding of the push springs 7 will push the limiting plates 402 to move, so that the two limiting plates 402 can clamp and fix the base of the head mold 3.
[0040] Finally, rotate the baffle 8 so that it presses against the limiting plate 402. This will fix the limiting plate 402 so that it cannot move, thus preventing the head mold 3 from becoming loose. This completes the replacement of the head mold 3.
[0041] Finally, when installing the vacuum pad 1, simply align the fixing strip 501 with the anti-slip strip 502 and the protrusion 504 to prevent the vacuum pad 1 from sliding on the treatment bed after installation.
[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A vacuum pad for radiotherapy, comprising a vacuum pad (1), wherein the top of the vacuum pad (1) has a support opening (2) for placing a head support mold, and the interior of the support opening (2) is provided with a head mold (3) for supporting the patient's head, characterized in that, The support port (2) is provided with a fixing component that can fix different types of head molds (3). The bottom of the vacuum pad (1) is provided with an anti-slip component to prevent the vacuum pad (1) from sliding. The fixing component includes a fixing plate (401) set at the bottom of the head mold (3) and having two symmetrical sliding grooves, and a limiting plate (402) that is slidably set inside each sliding groove.
2. The vacuum pad for radiotherapy as described in claim 1, characterized in that, The two limiting plates (402) have fixing grooves on their opposite surfaces, and each fixing groove is adapted to the base of the head mold (3).
3. The vacuum pad for radiotherapy as described in claim 1, characterized in that, Multiple limiting posts (6) are fixedly installed inside both sliding grooves, and each limiting post (6) slides in cooperation with the adjacent limiting plate (402).
4. The vacuum pad for radiotherapy as described in claim 3, characterized in that, Each of the limiting posts (6) is fitted with a push spring (7), and the two ends of each push spring (7) abut against the adjacent limiting plate (402) and the inner wall of the sliding groove, respectively.
5. A vacuum pad for radiotherapy as described in claim 1, characterized in that, Both sides of the fixed plate (401) are rotatably mounted with baffles (8), and each baffle (8) is fixedly mounted with a pull strip (9) on its top. One side of each baffle (8) is in contact with the adjacent limiting plate (402).
6. A vacuum pad for radiotherapy as described in claim 1, characterized in that, The anti-slip assembly includes a fixing strip (501) fixedly installed on the bottom of the vacuum pad (1) and having multiple fixing holes, an anti-slip strip (502) set at the bottom of the fixing strip (501), and an anti-slip plate (503) fixedly installed on the bottom of the anti-slip strip (502). Multiple protrusions (504) are fixedly installed on the top of the anti-slip strip (502), and each of the protrusions (504) extends into the interior of the adjacent fixing hole.