Reinforced ribbed thermoplastic film for radiotherapy
By setting fixed and reinforced areas on the thermoplastic membrane and rationally arranging the mesh, the problem of balancing fixation strength and breathability in low-temperature thermoplastic membranes during radiotherapy is solved, achieving greater comfort and treatment precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MEICEN MEDICAL EQUIP CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-16
AI Technical Summary
Existing low-temperature thermoplastic membranes for radiotherapy suffer from difficulties in balancing pore size and density, resulting in a trade-off between fixation strength and breathability, which affects patient comfort and treatment accuracy.
A reinforced thermoplastic membrane is designed by setting fixed and reinforced areas on the membrane body and arranging mesh holes in each area. The fixed area has large mesh hole diameter and small hole spacing, and the mesh holes are dense. The reinforced area has small mesh hole diameter and large hole spacing. Combined with a corner design with a specific shape, the membrane is designed to fit the human body tightly and provide stability and breathability.
It significantly improves patient comfort and treatment precision, reduces local discomfort, ensures that the diaphragm is not easily deformed under stress, better conforms to the curves of the human body, prevents displacement, and improves fixation effect.
Smart Images
Figure CN224357908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical positioning membrane technology, specifically a reinforcing thermoplastic membrane for radiotherapy. Background Technology
[0002] During radiotherapy, patients typically lie on a specially designed base, where doctors use a low-temperature thermoplastic membrane to secure it to the base plate, ensuring precise treatment. The procedure begins by heating the membrane to soften it and allow it to conform tightly to the patient's body. However, as the temperature drops, the membrane contracts. This contraction gradually increases the pressure on the patient's body, especially in sensitive areas such as the nose, mouth, and Adam's apple. Patients may experience significant discomfort, and in severe cases, even difficulty breathing, greatly impacting their comfort during treatment.
[0003] To alleviate patient discomfort, a common approach is to perforate a low-temperature thermoplastic membrane. The perforation aims to reduce membrane shrinkage and minimize pressure on the patient. However, in practice, it has been found that balancing the pore size and density is difficult. When the membrane thickness is fixed, positioning stability is significantly affected by both pore size and density. If the pore size is too small, while it improves membrane fixation and enhances patient positioning, thus benefiting treatment, it reduces breathability. This can cause discomfort, especially around sensitive areas like the eyes, mouth, nose, and throat, leading to stuffiness and difficulty breathing, significantly reducing comfort during treatment. Conversely, if the pore size is too large, the membrane's fixation strength weakens, making it difficult to effectively fix the patient. This can cause displacement during treatment, affecting the accuracy of radiotherapy and ultimately reducing treatment effectiveness. Utility Model Content
[0004] This invention provides a reinforced thermoplastic film that offers stable support and good comfort.
[0005] The reinforcing thermoplastic membrane of this utility model includes a membrane body, fixing areas arranged on the membrane body for fixing different parts of the human body, and reinforcing areas spaced apart between adjacent fixing areas. Each fixing area and reinforcing area is provided with a plurality of mesh holes. The aperture of the fixing area is larger than that of the reinforcing area, and the spacing between the holes in the fixing area is smaller than that in the reinforcing area. The fixing areas include a forehead fixing area, a face fixing area, and a neck fixing area. The reinforcing areas include a forehead reinforcing area located between the forehead fixing area and the face fixing area, and a support reinforcing area located between the face fixing area and the neck fixing area. The support reinforcing area is provided with a chin fixing area corresponding to the chin of the human body.
[0006] The aforementioned reinforced thermoplastic membrane features numerous mesh openings in both the fixing and reinforcing areas. The fixing areas have relatively large mesh openings with small spacing, resulting in a dense mesh distribution. This allows the fixing area to closely conform to the human body's contours, adapting to the natural curvature of different body positions, and exhibiting high deformability, thus ensuring stability and reliability while maintaining good breathability and comfort. Conversely, the reinforcing areas have relatively small mesh openings with larger spacing. The smaller openings effectively enhance the area's strength and toughness, providing support and reinforcement, and preventing the membrane from easily deforming under stress. The larger spacing allows the overall structure to maintain strength while also possessing flexibility, facilitating bending and conforming to the body's curves. Furthermore, the mesh openings in the chin fixing area, corresponding to the chin, ensure breathability and comfort while better conforming to the physiological contours of the chin. This helps to stably fix the chin area during breathing, preventing membrane displacement and ensuring stability, thereby achieving more precise support and fixation. This invention, through its rationally distributed fixed and reinforced areas, and the different mesh arrangements in each area, can effectively fix different parts of the human body, allowing the diaphragm to better conform to the human body, reducing local discomfort, and thus significantly improving patient comfort.
[0007] As a preferred embodiment of this utility model, the mesh aperture of the face fixing area and the neck fixing area is ∅3-5mm and the hole spacing is 4-9mm; the mesh aperture of the forehead fixing area and the membrane body surrounding the face fixing area and the neck fixing area is ∅1-3mm and the hole spacing is 4-9mm.
[0008] As a preferred embodiment of this utility model, the mesh aperture of the reinforced area is ∅1-3mm and the mesh spacing is 12-17mm.
[0009] As a preferred embodiment of this utility model, a first corner portion in the shape of a bent angle is provided in the forehead fixing area, and a second corner portion is provided in the face fixing area. The bending points of the first corner portion and the second corner portion are both located at the center line of the membrane body.
[0010] As a preferred embodiment of this utility model, the first corner is V-shaped, and the protruding direction of the corner is towards the fixed area of the face.
[0011] As a preferred embodiment of this utility model, the forehead reinforcement area extends toward the face fixing area to form a second corner of a triangular area, and the mesh aperture and hole spacing in the triangular area of the second corner are consistent with the mesh aperture and hole spacing in the forehead reinforcement area.
[0012] As a preferred embodiment of this utility model, the mesh aperture of the chin fixing area is ∅1-3 mm and the hole spacing is 4-9 mm. On both sides of the chin fixing area, there are a transition area without mesh and a transition area with mesh, wherein the mesh aperture of the transition area with mesh is ∅1-3 mm and the hole spacing is 12-17 mm.
[0013] As a preferred embodiment of the present invention, the reinforcing region further includes shoulder reinforcing regions located on both sides of the neck fixing region. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a ribbed thermoplastic membrane structure. Detailed Implementation
[0015] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0016] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "equipped with," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] If the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "several" means one or more, "multiple" means two or more, and "above," "below," and "within" are all understood to include the stated number. Furthermore, the technical features of each embodiment can be arbitrarily combined. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described; however, as long as these combinations of technical features do not contradict each other, they should be considered within the scope of this specification.
[0019] like Figure 1 As shown, a reinforced thermoplastic membrane includes a membrane body 1, fixing areas arranged on the membrane body for fixing different parts of the human body, and reinforcing areas spaced apart between adjacent fixing areas. Each fixing area and reinforcing area is provided with a plurality of mesh holes. The aperture of the fixing area is larger than that of the reinforcing area, and the spacing between the holes in the fixing area is smaller than that in the reinforcing area. The fixing areas include a forehead fixing area 2, a face fixing area 3, and a neck fixing area 4. The reinforcing areas include a forehead reinforcing area 5 located between the forehead fixing area and the face fixing area, and a support reinforcing area 6 located between the face fixing area and the neck fixing area. The support reinforcing area 6 is provided with a chin fixing area 10 corresponding to the chin of the human body. Each fixed and reinforced area is equipped with several mesh openings. The fixed areas have relatively large mesh openings with small spacing, resulting in a dense distribution that allows the fixed area to closely conform to the human body's contours, adapting to the natural curvature of different body positions, and exhibiting high deformability. This ensures stability and reliability while maintaining good breathability and comfort. The reinforced areas have relatively small mesh openings with larger spacing. The smaller openings effectively enhance the area's strength and toughness, providing support and reinforcement, and preventing the diaphragm from deforming under stress. The larger spacing allows the overall structure to maintain strength while also possessing flexibility, facilitating bending and conforming to the body's curves. Furthermore, the mesh openings in the chin fixation area, corresponding to the chin, ensure breathability and comfort while better conforming to the physiological contours of the chin. This helps to stably fix the chin area during breathing, preventing diaphragm displacement and ensuring stability, thus achieving more precise support and fixation. This invention, through its rationally distributed fixed and reinforced areas, and the different mesh arrangements in each area, can effectively fix different parts of the human body, allowing the diaphragm to better conform to the human body, reducing local discomfort, and thus significantly improving patient comfort.
[0020] The mesh aperture of the face fixation area 3 and the neck fixation area 4 is ∅3-5mm, and the mesh spacing is 4-9mm. The mesh aperture of the forehead fixation area 2 and the mesh body surrounding the face fixation area 3 and the neck fixation area 4 is ∅1-3mm, and the mesh spacing is 4-9mm. A mesh spacing of 4-9mm allows for a denser mesh distribution in the face fixation area 3 and the neck fixation area 4, resulting in a closer fit to the skin and effectively adapting to the curves of different body parts, ensuring stability and reliability when fixing the body. Simultaneously, a mesh aperture within the 3-5mm range ensures good breathability without compromising fixation effectiveness due to excessively large apertures, thus balancing comfort and fixation performance during use. Furthermore, for the face fixation area 3, where facial skin is relatively sensitive, and the neck fixation area 4, which is significantly affected by breathing, a mesh aperture of ∅3-5mm is used; the larger aperture provides better breathability and comfort. For other areas with low skin sensitivity, such as the forehead fixation area 2 and the mesh surrounding the face fixation area 3 and neck fixation area 4 on the membrane body, the mesh aperture is set to ∅1-3mm. Smaller apertures help maintain better strength during stretching and retraction. The symbol ∅ for mesh aperture diameter is used.
[0021] The mesh aperture of the reinforced area is ∅1-3mm, and the aperture spacing is 12-17mm. The small aperture effectively enhances the strength and toughness of the reinforced area, making it less prone to deformation under stress, thus better fulfilling its supporting and reinforcing functions and ensuring the stability of the diaphragm body during use. The larger aperture spacing results in a relatively sparse mesh distribution, which increases the flexibility of the area without significantly reducing strength, allowing the diaphragm body to better bend and adapt to the human body's curves, improving comfort. Despite the small aperture, its combination with the large aperture spacing allows the reinforced area to improve strength and toughness while also possessing flexibility and breathability, significantly improving the user comfort of the diaphragm body.
[0022] As another embodiment, when the number of mesh openings is too large, it becomes difficult to center and align the membrane onto the patient. This not only causes significant inconvenience for medical staff but may also affect the accuracy of radiotherapy due to inaccurate alignment. Simultaneously, uneven force distribution in some areas can cause unnecessary pressure on the patient. Further complicating matters, human facial features vary, with different nose protrusion heights, resulting in varying degrees of deformation of the membrane at corresponding facial and nose positions. Using a uniform mesh opening diameter cannot accommodate these local deformation differences, causing local discomfort and further exacerbating the patient's discomfort. Therefore, a first corner 7 in the shape of a bent angle is provided in the forehead fixation area, and a second corner 8 is provided in the face fixation area. The bending points of both the first and second corners are located at the midline 9 of the membrane body. The first corner in the shape of a bent angle in the forehead fixation area conforms to the natural curvature of the forehead, allowing the membrane body to fit more closely when fixing the forehead, avoiding insecure fixation or unnecessary pressure on the skin due to shape mismatch. A second corner is provided in the facial fixation area to facilitate the membrane body to better adapt to changes in facial contours. The bending points of the first and second corners are both located on the center line of the membrane body. This not only ensures the symmetry and stability of the membrane body and makes the force on both sides even, improving the fixation effect, but also makes it easier for medical staff to center the operation, improving the efficiency and accuracy of use.
[0023] The first corner 7 is V-shaped, with the protruding corner facing the facial fixation area 3. The V-shape allows the first corner to closely conform to the natural curvature of the forehead and face, especially the curves of the brow and face, preventing wrinkles or gaps from appearing in the membrane body during fixation, ensuring a close fit between the membrane body and the skin, thereby improving the fixation effect.
[0024] The forehead reinforcement region 2 extends towards the face fixation region 3 to form a second corner 8 of a triangular region, and the mesh aperture and spacing of the triangular region at this second corner are consistent with those of the mesh aperture and spacing in the forehead reinforcement region. Since the straight line connecting the bending point of this triangular region to the bending point of the first corner forms the centerline of the membrane body, medical personnel can perform precise centering and alignment operations based on this centerline before fixation. When the membrane body deforms during fixation, the triangular region at the second corner, with its identical mesh layout to the forehead reinforcement region, can significantly enhance the strength and stability of this region, effectively reducing local deformation. Simultaneously, medical personnel can continuously observe whether the membrane body remains centered and aligned during fixation, thereby improving the accuracy of the membrane body's centering and alignment.
[0025] The mesh openings in the chin fixation area have a diameter of ∅1-3mm and a spacing of 4-9mm. Two transitional zones, 11 (without mesh) and 12 (with mesh), are located on either side of the chin fixation area. The mesh openings in the transitional zones have a diameter of ∅1-3mm and a spacing of 12-17mm. The chin is one of the key areas requiring the most suppressed movement in head and neck radiotherapy. Therefore, the chin area (mainly the protruding mandible) is fixed using a uniformly distributed mesh with a diameter of ∅1-3mm and a spacing of 4-9mm. This ensures breathability while significantly enhancing the fixation effect in this area, effectively limiting the range of chin movement and improving treatment precision. The chin fixation area is designed to resist chin movement by using alternating non-mesh transition zones and mesh transition zones on both sides. The non-mesh transition zone acts as a reinforcing rib, increasing structural strength, while the mesh transition zone restricts chin movement and reduces discomfort caused by shrinkage of the membrane during curing. This not only improves mechanical strength, stability, and fit, but also ensures good breathability and comfort, providing strong support for the radiotherapy process.
[0026] The reinforced area also includes shoulder reinforcement areas 13 located on both sides of the neck fixation area. This makes the entire diaphragm structure more stable, prevents adverse effects on neck fixation due to shoulder movement, and provides more comprehensive fixation support for the head and neck, significantly improving the effectiveness, especially during treatments or procedures requiring head stability.
[0027] The above description is merely a preferred embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the content of this specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model. In the description of this utility model, the terms "one embodiment," "some embodiments," "embodiment," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Those skilled in the art will understand, explicitly and implicitly, that, without conflict, the embodiments described herein can be combined with other embodiments, and the embodiments of this utility model and the features within those embodiments can be combined with each other.
Claims
1. A ribbed thermoplastic film, characterized in that, The device includes a diaphragm body (1), a fixing area arranged on the diaphragm body for fixing different parts of the human body, and a reinforcing area spaced between adjacent fixing areas. Each fixing area and reinforcing area is provided with a number of mesh holes. The aperture of the fixing area is larger than that of the reinforcing area, and the hole spacing of the fixing area is smaller than that of the reinforcing area. The fixing area includes a forehead fixing area (2), a face fixing area (3), and a neck fixing area (4). The reinforcing area includes a forehead reinforcing area (5) located between the forehead fixing area and the face fixing area, and a support reinforcing area (6) located between the face fixing area and the neck fixing area. The support reinforcing area (6) is provided with a chin fixing area (10) corresponding to the chin of the human body.
2. The reinforcing thermoplastic film according to claim 1, characterized in that, The mesh aperture of the face fixing area (3) and the neck fixing area (4) is ∅3-5mm and the hole spacing is 4-9mm; the mesh aperture of the forehead fixing area (2) and the membrane body surrounding the face fixing area (3) and the neck fixing area (4) is ∅1-3mm and the hole spacing is 4-9mm.
3. The reinforcing thermoplastic film according to claim 1, characterized in that, The mesh size of the reinforced area is ∅1-3mm and the mesh spacing is 12-17mm.
4. The reinforcing thermoplastic film according to claim 1, characterized in that, A first corner (7) in the shape of a bend is provided in the forehead fixing area, and a second corner (8) is provided in the face fixing area. The bending points of the first corner and the second corner are both located at the center line (9) of the membrane body.
5. The reinforcing thermoplastic film according to claim 4, characterized in that, The first corner (7) is V-shaped, with the protruding corner facing the fixed area of the face (3).
6. The reinforcing thermoplastic film according to claim 4, characterized in that, The forehead reinforcement area (5) extends toward the face fixation area (3) to form a second corner (8) of a triangular area, and the mesh aperture and aperture spacing in the triangular area of the second corner are consistent with the mesh aperture and aperture spacing in the forehead reinforcement area.
7. The reinforcing thermoplastic film according to claim 1, characterized in that, The mesh aperture of the chin fixing area is ∅1-3 and the hole spacing is 4-9mm. On both sides of the chin fixing area, there are a transition area without mesh (11) and a transition area with mesh (12) at intervals. The mesh aperture of the transition area with mesh is ∅1-3mm and the hole spacing is 12-17mm.
8. The reinforcing thermoplastic film according to claim 1, characterized in that, The reinforcement area also includes shoulder reinforcement areas located on both sides of the neck fixation area (13).