Reinforcing rib type thermoplastic film for radiotherapy
By designing the fixed area and reinforcement area on the thermoplastic diaphragm and combining the bending design of the forehead and face corners, the problem of insufficient fixing strength and breathability of the low-temperature thermoplastic diaphragm in radiation therapy is solved, achieving higher comfort and treatment accuracy.
Patent Information
- Application Number
- CN202510910723.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2025-08-15
AI Technical Summary
In radiotherapy, the existing low-temperature thermoplastic diaphragms are difficult to weigh the mesh aperture and density, resulting in insufficient fixation strength and breathability, which affects the patient's comfort and treatment accuracy, and cannot adapt to the local deformation differences in the human face, resulting in local discomfort and displacement.
A reinforced rib-type thermoplastic film is designed. By setting a fixed area and a reinforced area on the diaphragm body, the mesh hole diameter in the fixed area is large and dense, and the mesh hole distance is small, which can adapt to the human body curvature; the mesh hole diameter in the strengthening area is small and the hole distance is large, which enhances support. Combined with the bending design of the forehead and the corners of the face, it ensures the stable fit and breathability of the diaphragm.
It improves the fixing stability and breathability of the diaphragm, reduces local discomfort, improves patient comfort and treatment accuracy, and simplifies the operation process.
Smart Images
Figure CN120478860A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical positioning films, in particular to a rib-type thermoplastic film used for radiotherapy. Background Art
[0002] During radiation therapy, patients typically lie on a specially designed base, secured to the base using a low-temperature thermoplastic membrane to ensure precise treatment. The membrane is first heated to soften and securely fit the patient's body. However, as the temperature drops, the membrane shrinks. This shrinkage gradually increases the pressure of the membrane on the patient's body, especially around sensitive areas like the nose, mouth, and Adam's apple. This can cause noticeable discomfort and, in severe cases, even difficulty breathing, significantly impacting treatment comfort.
[0003] In order to alleviate the discomfort of patients, the current common method is to punch mesh holes on low-temperature thermoplastic diaphragms. The purpose of setting the mesh holes is to reduce the shrinkage rate of the diaphragm and reduce the pressure on the patient. However, in actual applications, it is found that the aperture and density of the mesh are difficult to balance. When the thickness of the diaphragm is fixed, the positioning stability is significantly affected by the mesh aperture and mesh density. If the mesh aperture is too small, although it is beneficial to improve the fixing strength of the diaphragm and enhance the positioning effect on the patient, which is beneficial to treatment, the air permeability will be reduced. Especially in contact-sensitive areas of the face such as the eyes, mouth, nose, and mouth, patients are prone to feeling stuffy and having difficulty breathing, and their comfort during treatment is greatly reduced. Conversely, if the mesh aperture is too large, the fixing strength of the diaphragm will be weakened, making it difficult to effectively fix the patient, resulting in possible displacement of the patient during treatment, affecting the accuracy of radiotherapy, and thus reducing the treatment effect.
[0004] In addition, when there are too many mesh holes, it is difficult to fit the diaphragm to the patient in the center. This not only brings great inconvenience to the medical staff's operation, but may also affect the accuracy of radiotherapy due to inaccurate positioning. At the same time, uneven force in some areas will also cause unnecessary pressure on the patient. What is more complicated is that the human face has different features and the height of the nose is different, resulting in different deformation degrees of the diaphragm in the corresponding face and nose position. If a uniform mesh aperture is used, it will not be able to adapt to this local deformation difference, which will cause local discomfort and further aggravate the patient's discomfort. Summary of the Invention
[0005] The invention provides a rib-type thermoplastic film which is convenient for centering and has good comfort.
[0006] The rib-type thermoplastic membrane described in the present invention includes a diaphragm body, a fixing area arranged on the diaphragm body for fixing different parts of the human body, and a reinforcement area spaced between two adjacent fixing areas, each of the fixing areas and the reinforcement area is arranged with a plurality of mesh holes, the pore size of the fixing area is larger than the pore size of the reinforcement area, and the pore spacing of the fixing area is smaller than the pore spacing of the reinforcement area; the fixing area includes a forehead fixing area, a face fixing area and a neck fixing area, and the reinforcement area includes a forehead reinforcement area located between the forehead fixing area and the face fixing area and a support reinforcement area located between the face fixing area and the neck fixing area; wherein a first corner in the shape of a bending angle is provided in the forehead fixing area, and a second corner is provided in the face fixing area, and the bending points of the first corner and the second corner are both located at the midline position of the diaphragm body.
[0007] The ribbed thermoplastic membrane is provided with a plurality of mesh holes in each fixing area and reinforcement area. The mesh holes in the fixing area have a relatively large aperture and a small pitch. The mesh holes are densely distributed, allowing the fixing area to closely conform to the human body contour and adapt to the natural curvature of different parts of the human body. This allows for high deformability, thereby ensuring stability and reliability of fixation while also ensuring good breathability and comfort. The mesh holes in the reinforcement area have a relatively small aperture and a large pitch. The smaller aperture effectively enhances the strength and toughness of the area, providing support and reinforcement, ensuring that the membrane body is not easily deformed when subjected to stress. The larger pitch ensures that the overall structure maintains strength while also being flexible, facilitating the bending and conforming of the membrane body to the curves of the human body. Furthermore, a first corner portion in the shape of a bent angle is provided in the forehead fixing area. The shape of this corner portion conforms to the natural curvature of the human forehead, allowing the membrane body to fit more closely when fixed to the forehead, avoiding loose fixation or unnecessary pressure on the skin due to shape mismatch. A second corner is provided in the facial fixation area to facilitate the diaphragm body to better adapt to changes in facial contours. The bending points of the first and second corners are both located on the midline of the diaphragm body. This not only ensures the symmetry and stability of the diaphragm body, evenly applies force on both sides, and improves the fixation effect, but also facilitates medical personnel to operate the center alignment, improving the efficiency and accuracy of use. Through the rational distribution of fixation and reinforcement areas, as well as the different mesh arrangements and corner structures in each area, the present invention can effectively fix different parts of the human body, allowing the diaphragm body to better fit the human body, reducing local discomfort, and thus significantly improving the comfort of the patient.
[0008] As a preferred solution of the present invention, the mesh aperture of the face fixing area and the neck fixing area is ∅3-5mm, and the hole pitch is 4-9mm; the mesh aperture of the forehead fixing area and the diaphragm body surrounding the face fixing area and the neck fixing area is ∅1-3mm, and the hole pitch is 4-9mm.
[0009] As a preferred solution of the present invention, the mesh aperture of the reinforced area is ∅1-3 mm and the hole spacing is 12-17 mm.
[0010] As a preferred solution of the present invention, the first corner is in a "V" shape, and the protruding direction of the corner is toward the fixed area of the face.
[0011] As a preferred solution of the present invention, the forehead reinforcement area extends toward the facial fixed 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 solution of the present invention, the support reinforcement area is provided with a chin fixing area corresponding to the human chin, the mesh aperture of the chin fixing area is ∅1-3, and the hole pitch is 4-9mm, and a non-mesh transition area and a mesh transition area are provided on both sides of the chin fixing area, wherein the mesh aperture of the mesh transition area is ∅1-3mm, and the hole pitch is 12-17mm.
[0013] As a preferred solution of the present invention, the reinforcement area further includes shoulder reinforcement areas located on both sides of the neck fixing area. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of a rib-type thermoplastic membrane structure. DETAILED DESCRIPTION
[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0016] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0017] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "disposed," "provided with," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.
[0018] If there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "several" means more than one, "more" means more than two, and "above", "below", "within", etc. are all understood to include the number itself. In addition, the technical features of each embodiment can be arbitrarily combined. In order to make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0019] like Figure 1As shown, a rib-type thermoplastic membrane comprises a diaphragm body 1, a fixing area arranged on the diaphragm body for fixing different parts of the human body, and a reinforcement area spaced between two adjacent fixing areas, wherein each fixing area and reinforcement area is arranged with a plurality of mesh holes, the pore size of the fixing area is larger than the pore size of the reinforcement area, and the pore spacing of the fixing area is smaller than the pore spacing of the reinforcement area; the fixing area comprises a forehead fixing area 2, a face fixing area 3 and a neck fixing area 4, and the reinforcement area comprises a forehead reinforcement area 5 located between the forehead fixing area and the face fixing area and a support reinforcement area 6 located between the face fixing area and the neck fixing area; wherein a first corner portion 7 in the shape of a bending angle is provided in the forehead fixing area, and a second corner portion 8 is provided in the face fixing area, and the bending points of the first corner and the second corner are both located at the midline 9 of the diaphragm body. The ribbed thermoplastic membrane is provided with a plurality of mesh holes in each fixing area and reinforcement area. The mesh holes in the fixing area have a relatively large aperture and a small pitch. The mesh holes are densely distributed, allowing the fixing area to closely conform to the human body contour and adapt to the natural curvature of different parts of the human body. This allows for high deformability, thereby ensuring stability and reliability of fixation while also ensuring good breathability and comfort. The mesh holes in the reinforcement area have a relatively small aperture and a large pitch. The smaller aperture effectively enhances the strength and toughness of the area, providing support and reinforcement, ensuring that the membrane body is not easily deformed when subjected to stress. The larger pitch ensures that the overall structure maintains strength while also being flexible, facilitating the bending and conforming of the membrane body to the curves of the human body. Furthermore, a first corner portion in the shape of a bent angle is provided in the forehead fixing area. The shape of this corner portion conforms to the natural curvature of the human forehead, allowing the membrane body to fit more closely when fixed to the forehead, avoiding loose fixation or unnecessary pressure on the skin due to shape mismatch. A second corner is provided in the facial fixation area to facilitate the diaphragm body to better adapt to changes in facial contours. The bending points of the first and second corners are both located on the midline of the diaphragm body. This not only ensures the symmetry and stability of the diaphragm body, evenly applies force on both sides, and improves the fixation effect, but also facilitates medical personnel to operate the center alignment, improving the efficiency and accuracy of use. Through the rational distribution of fixation and reinforcement areas, as well as the different mesh arrangements and corner structures in each area, the present invention can effectively fix different parts of the human body, allowing the diaphragm body to better fit the human body, reducing local discomfort, and thus significantly improving the comfort of the patient.
[0020] The mesh apertures in the face and neck fixation areas 3 and 4 range from 0.3 to 5 mm, with a pitch of 4 to 9 mm. The mesh apertures in the forehead fixation area 2 and surrounding the face and neck fixation areas 3 and 4 on the diaphragm body range from 0.1 to 3 mm, with a pitch of 4 to 9 mm. This 4-9 mm pitch allows for a denser mesh distribution in the face and neck fixation areas 3 and 4, allowing for a closer fit and adapting to the curves of different body parts, ensuring stability and reliability when securing the body. Furthermore, a pore size range of 3-5 mm ensures good breathability without compromising the fixation effect due to excessively large pores, thus ensuring a balance between comfort and fixation performance during use. Furthermore, for the face and neck fixation areas 3 and 4, where facial skin is relatively sensitive, and the neck fixation area 4, where breathing is more affected, the mesh apertures are set to 0.3 to 5 mm. Larger pore sizes provide better breathability and comfort. For other areas with less sensitive skin, such as the forehead fixation area 2 and the mesh holes surrounding the face fixation area 3 and neck fixation area 4 on the diaphragm body, the mesh aperture is set to ∅1-3mm. A smaller aperture helps maintain better strength during stretching and retraction. The mesh aperture symbol ∅ represents the diameter.
[0021] The mesh aperture of the reinforced area is ∅1-3mm and the hole spacing is 12-17mm. The small-aperture mesh can effectively improve the strength and toughness of the reinforced area, making it less likely to deform when subjected to force, thereby better playing a supporting and reinforcing role, ensuring the stability of the diaphragm body during use. The larger hole spacing makes the mesh distribution relatively sparse, which increases the flexibility of the area without significantly reducing the strength, allowing the diaphragm body to better bend and adapt to the curve of the human body, improving comfort. Although the aperture is small, it is combined with the large hole spacing to make the reinforced area have both flexibility and breathability while improving strength and toughness, significantly improving the comfort of use of the diaphragm body.
[0022] The first corner 7 is V-shaped, with the corner protruding toward the facial fixation area 3. The V-shape allows the first corner to closely conform to the natural curvature of the forehead and face, particularly the curves between the eyebrows and the face, preventing wrinkles or gaps in the diaphragm during fixation, ensuring a close fit between the diaphragm and the skin, and thus improving the fixation effect.
[0023] The forehead reinforcement area 2 extends toward the facial fixing area 3 to form a second corner 8 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. Since the straight line connecting the bending point of the triangular area and the bending point of the first corner constitutes the center line of the diaphragm body, medical staff can perform precise centering and alignment operations based on this center line before fixation. When the diaphragm body is deformed during the fixation process, the triangular area of the second corner can significantly enhance the strength and stability of the area by virtue of the same mesh layout as the forehead reinforcement area, effectively reducing local deformation. At the same time, medical staff can observe at any time during the fixation process whether the diaphragm body remains centered, thereby improving the accuracy of the centering of the diaphragm body.
[0024] The support reinforcement area 6 is provided with a chin fixing area 10 corresponding to the human chin. The mesh aperture of the chin fixing area is ∅1-3mm and the hole pitch is 4-9mm. A non-mesh transition area 11 and a mesh transition area 12 are spaced apart on both sides of the chin fixing area. The mesh aperture of the mesh transition area is ∅1-3mm and the hole pitch is 12-17mm. The chin is one of the key areas in head and neck radiotherapy that requires the most movement suppression. Therefore, the chin position (mainly the protruding mandible) is fixed with a uniformly distributed mesh with an aperture of ∅1-3mm and a hole pitch of 4-9mm. The mesh significantly enhances the fixation effect of this area while ensuring breathability, effectively limiting the range of movement of the chin and improving the accuracy of treatment. The chin fixation area on both sides resists chin movement by adopting an interval setting of mesh-free transition zone and mesh-filled transition zone. Among them, the mesh-free transition zone acts as a reinforcing rib and increases the structural strength, while the mesh-filled transition zone restricts the chin movement while reducing the discomfort to the chin caused by the contraction of the diaphragm body during solidification. It not only improves the mechanical strength, stability and fit, but also ensures good breathability and comfort, providing strong support for the radiotherapy process.
[0025] 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 the adverse effects of shoulder movement on neck fixation, and provides more comprehensive fixation support for the head and neck, especially during treatments or operations that require head stability, which can significantly improve the effect.
[0026] The above descriptions are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention. In the description of the present invention, the reference terms "one embodiment", "some embodiments", "embodiment", "illustrative embodiment", "example", "specific example" or "some examples" are intended to mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. It is explicitly and implicitly understood by those skilled in the art that, in the absence of conflict, the embodiments described herein can be combined with other embodiments, and the embodiments of the present invention and the features in the embodiments can be combined with each other.
Claims
1. A rib-type thermoplastic film, characterized in that: The invention comprises a diaphragm body (1), a fixing area arranged on the diaphragm body for fixing different parts of the human body, and a reinforcement area arranged at intervals between two adjacent fixing areas, wherein each fixing area and the reinforcement area are arranged with a plurality of mesh holes, the aperture of the fixing area is larger than the aperture of the reinforcement area, and the hole pitch of the fixing area is smaller than the hole pitch of the reinforcement area; the fixing area comprises a forehead fixing area (2), a face fixing area (3) and a neck fixing area (4), and the reinforcement area comprises a forehead reinforcement area (5) located between the forehead fixing area and the face fixing area, and a support reinforcement area (6) located between the face fixing area and the neck fixing area; wherein a first corner portion (7) in the shape of a bending angle is provided in the forehead fixing area, and a second corner portion (8) is provided in the face fixing area, and the bending points of the first corner and the second corner are both located at the midline (9) of the diaphragm body.
2. The rib-type thermoplastic film according to claim 1, characterized in that: The mesh apertures of the face fixing area (3) and the neck fixing area (4) are ∅3-5 mm and the hole spacing is 4-9 mm; the mesh apertures of the forehead fixing area (2) and the diaphragm body surrounding the face fixing area (3) and the neck fixing area (4) are ∅1-3 mm and the hole spacing is 4-9 mm.
3. The rib-type thermoplastic film according to claim 1, characterized in that: The mesh aperture of the reinforcement area is ∅1-3 mm, and the hole spacing is 12-17 mm.
4. The rib-type thermoplastic film according to claim 1, characterized in that: The first corner (7) is in a "V" shape, with the corner protruding toward the facial fixing area (3).
5. The rib-type thermoplastic film according to claim 1, characterized in that: The forehead reinforcement area (2) extends toward the face fixing area (3) to form a second corner (8) of the 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.
6. The rib-type thermoplastic film according to claim 1, characterized in that: The support reinforcement area (6) is provided with a chin fixing area (10) corresponding to the chin of the human body. The mesh aperture of the chin fixing area is ∅1-3 and the hole pitch is 4-9 mm. A non-mesh transition area (11) and a mesh transition area (12) are provided on both sides of the chin fixing area. The mesh aperture of the mesh transition area is ∅1-3 mm and the hole pitch is 12-17 mm.
7. The rib-type thermoplastic film according to claim 1, characterized in that: The reinforcement area also includes shoulder reinforcement areas (13) located on both sides of the neck fixing area.