Perianal skin dose compensator for radiotherapy

Abstract

The utility model relates to a perianal skin dose compensator for radiotherapy, and relates to the technical field of medical instruments, the perianal skin dose compensator for radiotherapy comprises a left hip fitting part and a right hip fitting part, the left hip fitting part is fixedly connected with the right hip fitting part, a central part is formed at the intersection position of the left hip fitting part and the right hip fitting part, and the central part is fixedly connected with the left hip fitting part. The central part comprises a perineum part and a buttock sulcus part, and a connecting line between the perineum part and the buttock sulcus part is perpendicular to a connecting line between the left buttock fitting part and the right buttock fitting part. The application has the effects that the perianal skin is tightly attached to the dose compensator, the gap between the perianal skin and the dose compensator is reduced, and meanwhile, the dose compensator is prevented from falling off.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a perianal skin dose compensator for radiotherapy. Background Art

[0002] During radiotherapy for low rectal cancer, anal canal cancer, and perianal malignancies, dose compensators need to be placed on the perianal surface to increase the perianal skin dose, otherwise it will lead to insufficient perianal skin dose. Skin dose compensators refer to an auxiliary device used during radiotherapy, and their main purpose is to reduce the adverse effects of radiotherapy on the skin. Since radiation gradually attenuates when penetrating human tissue, the dose received by the skin surface is usually low, while the tissue under the skin receives a higher dose. In order to ensure the accuracy and effectiveness of radiotherapy, doctors usually place some compensators on the skin surface to increase the dose on the skin surface and make the dose distribution of the entire radiotherapy area more uniform.

[0003] The dose compensators currently sold on the market are mainly flat squares. Due to the particularity of the perianal skin, on the one hand, the dose compensators cannot fit the perianal skin completely, and an air gap will be generated between the two, affecting the dose distribution of radiotherapy; on the other hand, the square dose compensators are difficult to fix on the perianal skin and often slip during treatment, thereby reducing the dose of radiation received by the perianal skin during radiotherapy. Due to the above problems, traditional dose compensators generally affect the efficacy of radiotherapy for low rectal cancer, anal canal cancer and perianal malignant tumors. Utility Model Content

[0004] In order to make the perianal skin and the dose compensator fit tightly, reduce the gap between them, and prevent the dose compensator from falling off, the present application provides a perianal skin dose compensator for radiotherapy.

[0005] The present application provides a perianal skin dose compensator for radiotherapy, which adopts the following technical solution:

[0006] A perianal skin dose compensator for radiotherapy includes a left buttock fitting portion and a right buttock fitting portion, wherein the left buttock fitting portion is fixedly connected to the right buttock fitting portion, and a center portion is formed at the intersection of the left buttock fitting portion and the right buttock fitting portion, wherein the center portion includes a perineum and a gluteal groove portion, and a line between the perineum and the gluteal groove portion is perpendicular to a line between the left buttock fitting portion and the right buttock fitting portion.

[0007] By adopting the above technical scheme, the left buttock fitting part and the right buttock fitting part are set, and the center part is formed at the position where the left buttock fitting part and the right buttock fitting part are relatively connected, so that when worn, the left buttock fitting part is located at the left buttock of the human body, so that the left buttock fitting part and the left anal skin are closely fitted, and the right buttock fitting part is located at the right buttock of the human body, so that the right buttock fitting part and the right anal skin are closely fitted, and the center part is located at the relative position between the perineum and the gluteal groove of the human body, so that the anal skin and the dosage compensation object are closely fitted, the gap between the two is reduced, and the dosage compensation object is prevented from falling off.

[0008] Optionally, a central filler is fixedly connected to the central portion, and the central filler is arranged along the line connecting the perineum and the gluteal groove.

[0009] By adopting the above technical solution, the central filler is set to fill the physiological depression around the anus when the patient wears it, and can be tightly applied to the perianal surface, avoiding or reducing the air gap between the dose compensator and the perianal surface, thereby obtaining a better radiotherapy dose distribution.

[0010] Optionally, the left hip fitting portion, the right hip fitting portion and the central portion have the same thickness.

[0011] By adopting the above technical solution, the thickness of the left buttock fitting part, the right buttock fitting part and the central part are set to be the same, so that during the radiation irradiation process, compensation can be performed evenly to improve the use accuracy.

[0012] Optionally, the thickness of the left buttock fitting portion, the right buttock fitting portion and the central portion ranges from 0.5 to 2 cm.

[0013] By adopting the above technical solution, different thicknesses of the left buttock fitting part, the right buttock fitting part and the center part can be selected, so that the operator can make selections according to different situations.

[0014] Optionally, the left hip fitting portion, the right hip fitting portion and the central portion are made of polystyrene material.

[0015] Optionally, the left buttock fitting portion, the right buttock fitting portion and a side of the central portion close to the skin are fixedly connected with an adhesive layer.

[0016] Optionally, the left buttock fitting portion covers the perianal skin of the left buttock.

[0017] Optionally, the right buttock fitting portion covers the perianal skin on the right buttock.

[0018] Optionally, the perineum portion covers the perineum area.

[0019] Optionally, the gluteal groove portion covers to the upper edge of the gluteal groove.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. Ensure adequate irradiation dose to the perianal skin during radiotherapy for low rectal cancer, anal canal cancer, and perianal tumors.

[0022] 2. It can be tightly applied to the anus and perianal surface to obtain better radiotherapy dose distribution.

[0023] 3. It can be adhered to the perianal area during use to reduce the risk of the dose compensation material slipping during treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an anal skin dose compensator for radiotherapy in an embodiment of the present application.

[0025] Figure 2 It is a cross-sectional view of a perianal skin dose compensator for radiotherapy in an embodiment of the present application.

[0026] Explanation of the reference numerals: 1. left buttock fitting portion; 2. right buttock fitting portion; 3. center portion; 31. perineum portion; 32. buttock groove portion; 4. central filler. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The present application embodiment discloses a perianal skin dose compensator for radiotherapy. Figure 1 , Figure 2 A perianal skin dose compensator for radiotherapy includes a left buttock fitting part 1 and a right buttock fitting part 2, which are fixedly connected to each other, and a central part 3 is arranged at a position opposite to the left buttock fitting part 1 and the right buttock fitting part 2. The left buttock fitting part 1 and the right buttock fitting part 2 form a sanitary napkin-like structure.

[0031] The central part 3 includes a perineum 31 located at the front side and a gluteal groove 32 located at the rear side, the perineum 31 and the gluteal groove 32 are fixedly connected, and the connection direction between the perineum 31 and the gluteal groove 32 is perpendicular to the connection direction between the left buttock fitting part 1 and the right buttock fitting part 2. The connection direction between the left buttock fitting part 1 and the right buttock fitting part 2 is set along the connection direction of the left buttock and the right buttock of the human body, and the connection direction between the perineum 31 and the gluteal groove 32 is set along the connection direction from the perineum 31 to the gluteal groove 32 of the human body.

[0032] A central filler 4 is fixedly connected above the central portion 3, and is arranged along the line between the perineum 31 and the gluteal groove 32, and is arranged parallel to the central portion 3. When the left buttock fitting portion 1 is fitted to the left buttock of the human body, the left buttock fitting portion 1 can completely cover the perianal skin of the left buttock; when the right buttock fitting portion 2 is fitted to the right buttock, the right buttock fitting portion 2 can completely cover the perianal skin of the right buttock; and the perineum 31 located in the central portion 3 can completely cover the perineum of the human body; the gluteal groove 32 located in the central portion 3 can cover the upper edge of the gluteal groove of the human body. At this time, the central filler 4 is opposite to the anus of the human body.

[0033] The thickness of the left buttock fitting part 1, the right buttock fitting part 2 and the central part 3 are equal everywhere. In some embodiments, the thickness of the left buttock fitting part 1, the right buttock fitting part 2 and the central part 3 ranges from 0.5 to 2 cm. Different perianal skin dose compensation materials can be selected according to the dose compensation requirements and the perianal conditions of the patient during clinical use. The left buttock fitting part 1, the right buttock fitting part 2 and the central part 3 are made of polystyrene material, and an adhesive layer is fixedly connected to the side of the left buttock fitting part 1, the right buttock fitting part 2 and the central part 3 close to the human skin. The left buttock fitting part 1, the right buttock fitting part 2 and the central part 3 can be adhered to the human skin through the adhesive layer, reducing the gap between the dose compensation material and the human skin, and reducing the situation of the dose compensation material falling off.

[0034] The implementation principle of the perianal skin dose compensator for radiotherapy in the embodiment of the present application is as follows: when the patient undergoes radiotherapy, the perianal skin dose compensator for radiotherapy is first worn, and when worn, the patient's anus is made to clamp the central filler 4. By using the perianal skin dose compensator for radiotherapy, the perianal skin of the patient can receive sufficient radiation during radiotherapy, reducing the side effects of insufficient radiation dose.

[0035] In this application, the term "plurality" means at least two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0036] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means 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 representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A perianal skin dose compensator for radiotherapy, characterized in that: The invention comprises a left buttock fitting portion (1) and a right buttock fitting portion (2), wherein the left buttock fitting portion (1) is fixedly connected to the right buttock fitting portion (2), and a central portion (3) is formed at the intersection of the left buttock fitting portion (1) and the right buttock fitting portion (2), wherein the central portion (3) comprises a perineum (31) and a gluteal groove portion (32), and a line connecting the perineum (31) and the gluteal groove portion (32) is perpendicular to a line connecting the left buttock fitting portion (1) and the right buttock fitting portion (2).

2. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: A central filler (4) is fixedly connected to the central portion (3), and the central filler (4) is arranged along the direction of a line connecting the perineum (31) and the gluteal groove (32).

3. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The left buttock fitting portion (1), the right buttock fitting portion (2) and the central portion (3) have the same thickness.

4. The perianal skin dose compensator for radiotherapy according to claim 3, characterized in that: The thickness of the left buttock fitting portion (1), the right buttock fitting portion (2) and the central portion (3) ranges from 0.5 to 2 cm.

5. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The left buttock fitting portion (1), the right buttock fitting portion (2) and the central portion (3) are made of polystyrene material.

6. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The left buttock fitting portion (1), the right buttock fitting portion (2) and the central portion (3) are fixedly connected with an adhesive layer on a side close to the skin.

7. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The left buttock fitting portion (1) covers the perianal skin of the left buttock.

8. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The right buttock fitting portion (2) covers the perianal skin of the right buttock.

9. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The perineum portion (31) covers the perineum area.

10. The perianal skin dose compensator for radiotherapy according to claim 1, characterized in that: The gluteal groove portion (32) covers the upper edge of the gluteal groove.

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