Molding bag for breast cancer radiotherapy body position fixation

Abstract

The utility model relates to the technical field of medical treatment, and particularly discloses a shaping bag for breast cancer radiotherapy body position fixation, polystyrene foam is arranged in the shaping bag, two strip-shaped holes which are vertically arranged up and down are arranged in the center of the surface of the shaping bag, and the ratio of the distance between the lower edges of the strip-shaped holes and the upper edge of the shaping bag to the distance between the upper edge and the lower edge of the shaping bag is 0.4-0.6. The strip-shaped hole is matched with the thermoplastic mask to fix the head and neck of a patient and form an individualized headrest, so that the fixing repeatability of the head and neck is improved, and the irradiation precision of the upper and lower areas of the clavicle is ensured; the arm fixing part and the waist fixing part are lengthened and widened, so that the fixing effect is improved. By improving the shape design of the shaping bag, position repeatability and fixed wrapping performance of the head, neck, arms and waist of a breast cancer radiotherapy patient are guaranteed, traction of the parts to the clavicle or chest of the patient is avoided, the overall body position fixing precision of breast cancer radiotherapy is improved, and the irradiation precision of the upper and lower areas of the clavicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of medical technology, and more specifically to a shaping bag used for fixing the body position during radiotherapy of breast cancer. Background Art

[0002] When fixing the position of breast cancer radiotherapy, a polyurethane foam molding bag can be used to obtain a position with high repeatability accuracy. Conventional breast cancer radiotherapy position fixing molding bags are designed to be wide at the top and narrow at the bottom. The upper part is used to fix the patient's head and arms, and the lower part is used to fix the patient's abdomen and back. The patient's arms and head are located on the molding bag, and the head is biased toward the healthy breast and the lower jaw needs to be raised to ensure the exposure of the patient's supraclavicular area. The patient's head, neck and arms are fixed by the material in the molding bag. This position is unnatural and has poor comfort. Clinically, it has been found that this method has relatively low fixation accuracy for the patient's head and neck, and the fixation accuracy of the upper and lower clavicle areas for patients with supraclavicular lymph node metastasis is still poor. The reason is that the position of the upper and lower clavicle areas of the patient is easily affected by the head tilt angle and the height of the mandibular angle. The patient is prone to involuntary movement during treatment, pulling the clavicle, resulting in changes in the position of the upper and lower clavicle areas, affecting the radiotherapy irradiation accuracy of breast cancer patients. Therefore, it is particularly urgent to improve the fixation of the patient's head and neck.

[0003] Application No. 201821552512.9 discloses a fixation device for the radiotherapy position of breast cancer patients. The arm fixation part and the head and neck fixation part of the polyurethane foam plastic pad provided by the utility model are integrated, so the displacement of the head and neck will directly affect the position of the arms, and vice versa; the size of the waist fixation part is too short, and the fixation accuracy is insufficient. The displacement of the arm and waist will pull the chest, resulting in a further decrease in the overall fixation accuracy of breast cancer radiotherapy. Utility Model Content

[0004] The utility model aims to overcome at least one of the deficiencies of the above-mentioned prior arts and provide a shaping bag for fixing the body position during radiotherapy for breast cancer, thereby ensuring the repeatability and fixed wrapping of the position of the head, neck, arms and waist of patients undergoing radiotherapy for breast cancer, improving the overall body position fixation accuracy, and ensuring the accuracy of irradiation of the upper and lower clavicle areas.

[0005] The technical solution adopted by the utility model is to provide a molding bag for fixing the body position during radiotherapy of breast cancer, which is filled with foam glue and is characterized in that two strip holes running vertically up and down are arranged at the central position of the surface of the molding bag, and the ratio of the distance between the lower edge of the strip hole and the upper edge of the molding bag to the distance between the upper and lower edges of the molding bag is 0.4-0.6.

[0006] When in use, the shaping bag is placed under the patient, and a mask mounting frame is provided in the strip hole to fix the thermoplastic mask. After the foam in the shaping bag begins to foam, the patient raises his hands to embrace his head, with the head between the two strip holes and the arms outside the strip holes. After the foam is shaped, the shaping bag forms a groove with a thickness of about 6 cm, which fits tightly to various parts of the body. After the thermoplastic mask is shaped, it fits tightly to the patient's face, which can limit the head tilt angle and the height of the mandibular angle, prevent the head from moving and pulling the clavicle, and then change the position of the upper and lower areas of the clavicle, and improve the head positioning accuracy and repeatability. The shaping bag and the thermoplastic mask together play a role in fixing the overall body position.

[0007] In addition to accommodating the mask mounting frame, the strip hole also has a limiting function. The lower edge of the strip hole can limit the shoulder height and thus fix the body position. The edges on both sides of the strip hole assist in shaping the foam rubber, so that when the foam rubber swells out from under the patient's head and neck, it expands along the direction of the edges on both sides of the strip hole, thereby forming an individualized headrest that supports the patient's head and neck. On the one hand, it improves the support effect of the individualized headrest, and on the other hand, it improves the patient's comfort.

[0008] Furthermore, the molding bag is in a decagonal shape, the upper edge of the molding bag is the first side, the first side and the sixth side are parallel to each other, the third side and the ninth side are parallel, and the fifth side and the seventh side are parallel, wherein the first side and the sixth side are horizontal sides, the third side, the fifth side, the seventh side, and the ninth side are vertical sides, and the other sides are oblique sides, wherein the second side and the tenth side are equal in length, and the fourth side and the eighth side are equal in length.

[0009] Furthermore, the distances between the third side and the ninth side and the perpendicular bisector of the first side are both 43 cm, the length of the third side is 34 cm, the horizontal lengths of the second side and the fourth side are 18 cm, the vertical length of the second side is 15 cm, the vertical length of the fourth side is 16 cm, and the length of the fifth side is 42 cm. The above dimensions are based on the existing molding bag, and the arm fixing part of the molding bag is lengthened and widened, so that the groove thickness formed after the foam is formed is larger, which is used to improve the patient's arm, ensure its position repeatability, and avoid displacement of the clavicle due to arm traction.

[0010] Furthermore, the upper edge of the strip hole is not higher than the horizontal line where the upper end point of the third side is located, and the lower edge of the strip hole is not lower than the horizontal line where the lower end point of the third side is located, so as to leave space for the hands and shoulders.

[0011] Preferably, the vertical length of the strip-shaped hole is 28 cm, the horizontal length is 5 cm, and the distance between the lower edge of the strip-shaped hole and the upper edge of the molding bag is 59 cm.

[0012] Furthermore, the length of the fifth side is 40-45 cm. The fifth side and the seventh side are two side edges of the waist fixing part. The length of the fifth side is appropriate, which is conducive to the shaping bag to pad the full length of the waist and improve the comfort of the patient.

[0013] Furthermore, the length of the sixth side is 50 to 56 cm. The waist width of female patients is generally no more than 37 cm, and the length of the sixth side is greater than or equal to 50 cm, so that the shaping bag can form grooves with a thickness greater than 6 cm on both sides of the waist after the waist is padded, which is conducive to fixing the waist position.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The present invention is improved on the basis of the existing shaping bag, and strip holes are cut on both sides of the head and neck fixing position to cooperate with the thermoplastic mask to fix the patient's head and neck and form an individualized headrest, thereby improving the fixation repeatability of the head and neck to ensure the irradiation accuracy of the upper and lower clavicle areas; lengthen and widen the arm fixing part to improve the arm, ensure its position repeatability, and avoid pulling the clavicle; lengthen and widen the waist fixing part to improve the waist fixation effect. The present invention improves the shape design of the shaping bag to ensure the position repeatability and fixed wrapping of the head, neck, arms and waist of breast cancer radiotherapy patients, avoid the above-mentioned parts pulling the patient's clavicle or chest, improve the overall position fixation accuracy of breast cancer radiotherapy, and ensure the accuracy of irradiation of the upper and lower clavicle areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the shaping bag.

[0017] Figure 2 It is a schematic diagram of the state where the molding bag is fixed on the solid frame.

[0018] Explanation of reference numerals: first side 1, second side 2, third side 3, fourth side 4, fifth side 5, sixth side 6, seventh side 7, eighth side 8, ninth side 9, tenth side 10, strip hole 11, mask mounting frame 12, thermoplastic mask 13, fixing part 14, fixing body frame 15. DETAILED DESCRIPTION

[0019] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] Example 1

[0021] like Figure 1 and Figure 2As shown, this embodiment provides a plastic bag for fixing the position of breast cancer radiotherapy, the plastic bag is fixed on the fixing frame 15 by a fixing member 14, the plastic bag is filled with foam glue, and the foam glue is put in through the zipper opening on the upper edge of the plastic bag. Two strip holes 11 running vertically up and down are arranged at the central position of the surface of the plastic bag.

[0022] When in use, the shaping bag is placed under the patient, and a mask mounting frame 12 is provided in the strip hole 11 for fixing the thermoplastic mask 13. After the foaming gel in the shaping bag begins to foam, the patient raises his hands in a posture of hugging his head, with the head between the two strip holes 11 and the arms outside the strip holes 11. After the foaming gel is shaped, the shaping bag forms a groove with a thickness of about 6 cm, which fits tightly to various parts of the body. After the thermoplastic mask 13 is shaped, it fits tightly to the patient's face, which can limit the head tilt angle and the mandibular angle height, prevent the head from moving and pulling the clavicle and then changing the position of the upper and lower clavicle areas, and improve the head positioning accuracy and repeatability. The shaping bag cooperates with the thermoplastic mask 13 to fix the overall body position.

[0023] In addition to accommodating the mask mounting frame 12, the strip hole 11 also has a limiting function. The lower edge of the strip hole 11 can limit the height of the shoulder, thereby fixing the body position. The edges on both sides of the strip hole 11 play a role in assisting the foam rubber in shaping, so that when the foam rubber swells out from under the patient's head and neck, it expands along the direction of the edges on both sides of the strip hole 11, thereby forming an individualized headrest that supports the patient's head and neck, which improves the support effect of the individualized headrest on the one hand and improves the patient's comfort on the other.

[0024] The molding bag is in a decagonal shape, and the upper edge of the molding bag is the first side 1. The first side 1 and the sixth side 6 are parallel to each other, the third side 3 and the ninth side 9 are parallel, and the fifth side 5 and the seventh side 7 are parallel. Among them, the first side 1 and the sixth side 6 are horizontal sides, the third side 3, the fifth side 5, the seventh side 7, and the ninth side 9 are vertical sides, and the other sides are oblique sides. Among them, the second side 2 and the tenth side 10 are equal in length, and the fourth side 4 and the eighth side 8 are equal in length.

[0025] The distance L2 between the third side 3 and the ninth side 9 and the perpendicular bisector of the first side 1 is 43 cm, the length of the third side 3 is 34 cm, the horizontal length L1 of the second side 2 and the fourth side 4 is 18 cm, the vertical length H1 of the second side 2 is 15 cm, the vertical length H2 of the fourth side 4 is 16 cm, and the length of the fifth side 5 is 42 cm. The above dimensions are based on the existing molding bag, and the arm fixing part of the molding bag is lengthened and widened, so that the groove formed after the foam is formed is thicker, which is used to improve the patient's arm, ensure its position repeatability, and avoid the displacement of the clavicle due to the traction of the arm.

[0026] The vertical length of the strip hole 11 is 28 cm, the horizontal length is 5 cm, and the distance H3 between the lower edge of the strip hole 11 and the upper edge of the shaping bag is 59 cm. The above-mentioned size design ensures that the upper edge of the strip hole 11 is not higher than the horizontal line where the upper end point of the third side 3 is located, and the lower edge of the strip hole 11 is not lower than the horizontal line where the lower end point of the third side 3 is located, so as to leave space for the hands and shoulders.

[0027] The length of the fifth side 5 is 42 cm. The fifth side 5 and the seventh side 7 are two side edges of the waist fixing part. The length of the fifth side 5 is appropriate, which is conducive to the shaping bag to pad the full length of the waist and improve the patient's comfort.

[0028] The length of the sixth side 6 is 50 cm. The length of the sixth side 6 is greater than or equal to 50 cm, so that after the shaping bag pads the waist, grooves with a thickness of about 6 cm are formed on both sides of the waist, which is conducive to fixing the waist position.

[0029] Example 2

[0030] The difference from the embodiment 1 is that the length of the sixth side 6 is 56 cm. For patients of different body shapes, corresponding size shaping bags are provided.

[0031] Example 3

[0032] The difference from the first embodiment is that the vertical length of the strip-shaped hole 11 is 21 cm.

[0033] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. A plastic bag for fixing the body position for breast cancer radiotherapy, containing foam glue, characterized in that: Two vertical strip holes are arranged at the central position of the surface of the molding bag, and the ratio of the distance between the lower edge of the strip hole and the upper edge of the molding bag to the distance between the upper and lower edges of the molding bag is 0.4-0.

6.

2. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 1, characterized in that: The shaping bag is in a decagonal shape, with the upper edge of the shaping bag being the first side, the first side and the sixth side being parallel to each other, the third side and the ninth side being parallel, and the fifth side and the seventh side being parallel, wherein the first side and the sixth side are horizontal sides, the third side, the fifth side, the seventh side, and the ninth side are vertical sides, and the other sides are oblique sides, wherein the second side and the tenth side are equal in length, and the fourth side and the eighth side are equal in length.

3. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 2, characterized in that: The distance between the third side and the ninth side and the perpendicular bisector of the first side is 43 cm respectively, the length of the third side is 34 cm, the horizontal length of the second and fourth sides is 18 cm, the vertical length of the second side is 15 cm, the vertical length of the fourth side is 16 cm, and the length of the fifth side is 42 cm.

4. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 2, characterized in that: The upper edge of the strip hole is not higher than the horizontal line where the upper end point of the third side is located, and the lower edge of the strip hole is not lower than the horizontal line where the lower end point of the third side is located.

5. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 4, characterized in that: The vertical length of the strip hole is 28 cm, the horizontal length is 5 cm, and the distance between the lower edge of the strip hole and the upper edge of the molding bag is 59 cm.

6. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 2, characterized in that: The length of the fifth side is 40-45 cm.

7. The shaping bag for fixing the body position for breast cancer radiotherapy according to claim 2, characterized in that: The length of the sixth side is 50-56 cm.

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