A breast and body foam radiotherapy position fixation auxiliary tool

Abstract

The present invention discloses a breast and body foam radiotherapy position fixing auxiliary tool, comprising a grip, one end of the grip extending along the axial direction of the grip with a positioning portion for forming a mark positioning point on the foam surface during the foam expansion molding stage, and the other end of the grip extending along the axial direction of the grip with a sharp insertion fixing portion for vertically inserting into the foam according to the mark positioning point formed by the positioning portion after the foam is cooled and molded. The breast and body foam radiotherapy position fixing auxiliary tool of the present invention cooperates with the breast foam positioning technology to effectively fix the position of the affected arm and palm, so that the repeatability and accuracy of the patient's affected armpit, clavicle, chest wall and other radiotherapy irradiation areas are improved, and various important organs and normal tissues near the target area are effectively protected from additional irradiation, reducing the positioning error of breast radiotherapy and improving the accuracy of radiotherapy for breast patients.

Description

Technical Field

[0001] The invention belongs to the field of radiotherapy, and in particular relates to a radiotherapy body position fixing auxiliary tool used in conjunction with breast and body foam glue to reduce positioning errors. Background Art

[0002] Breast cancer is one of the most common malignant tumors in women. Its incidence has been on the rise in recent years. In developed Western countries, 1 in 8-10 women suffer from breast cancer. In some large cities in my country, breast cancer has been reported to be the leading malignant tumor in women. As a systemic disease, breast cancer is currently mainly treated with a combination of surgery, radiotherapy, chemotherapy and endocrine therapy. Radiotherapy as a local treatment method includes preventive, radical and palliative. The irradiation method mainly uses external irradiation, and interstitial irradiation can be used for those who have undergone breast-conserving surgery. Preventive irradiation is used for radical or modified radical mastectomy of breast cancer. Radical irradiation is mainly used after breast-conserving surgery in stages I and II, because the efficacy of this method is equivalent to that of radical or modified radical mastectomy, and the breast is preserved, thus improving the quality of life. Palliative irradiation is given to patients with advanced breast cancer who cannot undergo surgery or have distant metastases.

[0003] Tumor radiotherapy is to give a certain volume of tumor an accurate and uniform dose, while the dose to the surrounding normal tissue is very small. Therefore, the purpose of radical cure of malignant tumors is achieved with little damage to normal tissue, thus ensuring the survival of patients while ensuring the quality of life of patients. The external irradiation techniques currently used in clinical practice include traditional radiotherapy (2D), conformal radiotherapy (3D CRT), intensity modulated radiotherapy (IMRT), stereotactic radiotherapy and image guided radiotherapy (IGRT). At present, IMRT intensity modulated radiotherapy is commonly used in the treatment of breast cancer. The fixation methods are roughly divided into breast bracket fixation, vacuum pad fixation, foam glue fixation, etc. Because of the active shaping characteristics of foam glue, it is simple and convenient, has good conformability, accurate positioning, good repeatability, environmental protection and non-toxicity, and has the advantages of no air leakage compared to vacuum pads, can be cut after molding, high hardness and good toughness, etc. Therefore, most breast cancer radiotherapy position fixation methods now use patients lying on their backs on foam glue, with the affected upper limb raised and fixed, and the head tilted to the healthy side. Due to the side effects of breast surgery, most patients have difficulty raising their affected arms. In addition, there is no fixed handle on the foam glue, which results in insufficient accuracy of the arms, humeral heads, and clavicle tissues when the foam glue is used to fix the breast cancer patient's position. The IMRT intensity modulated therapy dose gradient varies greatly, and requires high positioning repeatability and accuracy. In order to solve the above accuracy problems, this breast and body foam glue radiotherapy position fixation auxiliary tool is designed. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a breast and body foam radiotherapy position fixation auxiliary tool, which cooperates with the breast foam positioning technology to effectively fix the position of the affected arm and palm, so that the repeatability and accuracy of the radiotherapy irradiation areas such as the patient's affected armpit, clavicle, chest wall, etc. are improved, effectively protecting various important organs and normal tissues near the target area from additional irradiation, reducing the positioning error of breast radiotherapy, and improving the accuracy of radiotherapy for breast patients.

[0005] To achieve the above-mentioned purpose, the present invention provides a breast and body foam radiotherapy position fixation auxiliary tool, including a handle, one end of the handle extending along the axial direction of the handle to have a positioning portion for forming an imprint positioning point on the surface of the foam rubber during the foam rubber expansion molding stage, and the other end of the handle extending along the axial direction of the handle to have a sharp insertion fixing portion for vertically inserting into the foam rubber according to the imprint positioning point formed by the positioning portion after the foam rubber is cooled and molded.

[0006] As a further improvement of the present invention, a partition plate for separating the handle and the sharp insertion fixing part is connected between the other end of the handle and the sharp insertion fixing part, which can separate the breast patient's hand from the foam glue and limit the part inserted into the foam glue to only the sharp insertion fixing part.

[0007] As a further improvement of the present invention, the axial length of the grip and the length of the sharp insertion fixing portion along the axial direction of the grip are both much greater than the axial length of the positioning portion along the axial direction of the grip, and the axial length of the grip is greater than the axial length of the sharp insertion fixing portion along the axial direction of the grip. The grip is longer in length so that the patient can grasp the grip when using it; the sharp insertion fixing portion is longer in length so that the grip can be firmly fixed in the foam.

[0008] As a further improvement of the present invention, the axial length of the handle is twice the axial length of the sharp insertion fixing portion, so that the patient can firmly grasp the handle during use.

[0009] As a further improvement of the present invention, the handle is a cylinder, the positioning part and the sharp insertion fixing part are both cones, the large end diameter of the positioning part is equal to the diameter of the handle, and the large end diameter of the sharp insertion fixing part is 1 / 2 of the diameter of the handle. The sharp insertion fixing part uses less material, which is more cost-effective on the one hand, and more convenient for the sharp insertion fixing part to be smoothly inserted into the foam.

[0010] As a further improvement of the present invention, the end of the positioning portion is a pointed tip, which can form an obvious concave mark on the surface of the foaming glue.

[0011] As a further improvement of the present invention, the partition plate is a circular partition plate, and the diameter of the partition plate is three times the diameter of the handle, which can effectively separate the breast patient's hands from the foam and ensure comfort during use.

[0012] As a further improvement of the present invention, the axial length of the handle is 10 cm and the diameter is 2 cm, the length of the sharp insertion fixing portion along the axial direction of the handle is 5 cm and the diameter of the large end is 1 cm, the length of the positioning portion along the axial direction of the handle is 0.5 cm and the diameter of the large end is 2 cm, and the thickness of the partition plate along the axial direction of the handle is 0.3 cm and the diameter is 6 cm. This size design is convenient for the patient to firmly grasp the handle, to firmly fix the handle into the foam, to separate the breast patient's hand from the foam, and to ensure comfort during use.

[0013] As a further improvement of the present invention, the imprint positioning point is a gravure printing. The gravure printing is simple, so the operation of forming the gravure printing is simple and convenient.

[0014] As a further improvement of the present invention, the handle, the positioning part, the sharp insertion fixing part and the partition plate are all made of a one-piece structure of a high temperature resistant PA-12 nylon material. Considering that the foam will heat up to 40-50 degrees Celsius during the foam molding process, and the sharp insertion fixing part needs to be inserted into the foam, the high temperature resistant and high hardness PA-12 nylon material is used, which has good high temperature resistance.

[0015] Compared with the prior art, the breast and body foam radiotherapy position fixation auxiliary tool of the present invention has the following beneficial effects:

[0016] (1) Combined with the foam glue fixation method, the affected arm, palm, humeral head and clavicle tissue of breast cancer patients can be effectively fixed, so that the radiotherapy irradiation areas such as the affected armpit, clavicle, chest wall and other areas of the patient have strong repeatability and accuracy, solving the problems of poor repeatability, large error and unstable hand position of simple foam glue position fixation, greatly improving the accuracy and repeatability of breast cancer patients' position fixation, reducing the positioning error of breast radiotherapy, improving the accuracy of breast radiotherapy, and effectively protecting various important organs and normal tissues near the target area from additional irradiation.

[0017] (2) It has the characteristics of simple design, easy operation, good compatibility with foam, and patient comfort.

[0018] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional perspective view of a foam rubber radiotherapy position fixation auxiliary tool for breast and body parts.

[0020] Figure 2 A stereoscopic image of a foam-based radiotherapy position fixation aid for breast and body parts.

[0021] Figure 3This is a plan view of a foam rubber radiotherapy position fixation aid for breast and body parts.

[0022] Description of the accompanying drawings: handle 1, positioning part 2, sharp insertion fixing part 3, partition plate 4. DETAILED DESCRIPTION

[0023] Embodiments of the present invention will now be described with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout the several views.

[0024] Please refer to Figure 1-3 The breast and body foam radiotherapy position fixation auxiliary tool includes a grip 1, which is used to hold the palm of the hand when fixing the breast patient's position. One end of the grip 1 is provided with a positioning portion 2 extending axially along the grip 1. The positioning portion 2 is used in the foam expansion molding stage to form a mark positioning point on the surface of the foam. The mark positioning point is a concave print, so that after the foam is molded, a sharp insertion fixing portion 3 can be inserted into the foam according to the positioning position. The other end of the grip 1 is provided with a sharp insertion fixing portion 3 extending axially along the grip 1. The sharp insertion fixing portion 3 is used to vertically insert into the foam according to the mark positioning point formed by the positioning portion 2, i.e., the concave print, after the foam is cooled and molded. A partition plate 4 is connected between the other end of the grip and the sharp insertion fixing portion 3. The partition plate 4 is used to separate the grip 1 and the sharp insertion fixing portion 3, and is used to separate the breast patient's hand from the foam, and to limit the part inserted into the foam to only the sharp insertion fixing portion 3. The handle 1, the positioning part 2, the sharp insertion fixing part 3 and the partition plate 4 are all made of a one-piece structure of a high-temperature resistant PA-12 nylon material. Considering that the foam rubber will heat up to 40-50 degrees Celsius during the molding process, the sharp insertion fixing part 3 needs to be inserted into the foam rubber, so the high-temperature resistant and high-hardness PA-12 nylon material is used. The handle 1, the positioning part 2, the sharp insertion fixing part 3 and the partition plate 4 are coaxially arranged.

[0025] The axial length of the handle 1 and the length of the sharp insertion fixing part 3 along the axial direction of the handle 1 are much greater than the axial length of the positioning part 2 along the axial direction of the handle 1, and the axial length of the handle 1 is greater than the axial length of the sharp insertion fixing part 3 along the axial direction of the handle 1. Moreover, the axial length of the handle 1 is twice the axial length of the sharp insertion fixing part 3 along the axial direction of the handle 1. The handle 1 is a cylinder, and the positioning part 2 and the sharp insertion fixing part 3 are both cones. The large end diameter of the positioning part 2 is equal to the diameter of the handle 1, and the large end diameter of the sharp insertion fixing part 3 is 1 / 2 of the diameter of the handle 1. The handle 1 adopts a longer and thicker design, which is convenient for the patient to firmly grasp the handle; while the sharp insertion fixing part 3 adopts a slender design, which can save materials and facilitate the smooth insertion of the sharp insertion fixing part into the foam. The partition plate 4 is a circular partition plate, and the diameter of the partition plate 4 is three times the diameter of the handle 1, which can effectively separate the breast patient's hand from the foam. The end of the positioning part 2 is a pointed tip, which can form a clear concave mark on the surface of the foam.

[0026] The axial length of the grip 1 is specifically 10 cm and the diameter is 2 cm. The size of the grip 1 can ensure that it can be firmly grasped by the patient during use. The length of the sharp insertion fixing portion 3 along the axial direction of the grip 1 is 5 cm and the diameter of the large end is 1 cm. Its length can ensure that the sharp insertion fixing portion 3 is more stable after being inserted into the foam. The length of the positioning portion 2 along the axial direction of the grip 1 is 0.5 cm and the diameter of the large end is 2 cm. The size of the positioning portion 2 can ensure that the gravure is formed quickly and can save materials. The thickness of the partition plate 4 along the axial direction of the grip 1 is 0.3 cm and the diameter is 6 cm. The size of the partition plate 4 can ensure comfort during use.

[0027] This breast and body foam radiotherapy position fixation auxiliary tool needs to be used in conjunction with the breast foam positioning technology. Take the production of supine breast patient position fixation as an example: during the expansion molding stage of the foam for breast patients, the patient lies on the foam, the patient holds the handle 1 with the affected hand, and places the positioning part 2 vertically downward on the foam surface, so that a slight dent appears on the foam surface. After the foam is completely cooled and formed, the patient is asked to release the handle 1, and the medical staff turns the handle 1 upside down and uses the sharp insertion fixing part 3 to vertically insert the positioning part 2 into the foam at the center point of the concave mark left by the positioning part 2 on the foam surface, so that the sharp insertion fixing part 3 is completely inserted into the foam and cannot shake left and right. Finally, let the patient hold the handle 1 again to mark the arm and body, and then pull out the handle 1, leaving a reusable handle slot.

[0028] Take the fixation and reduction of the supine breast patient as an example: use the sharp insertion fixing part 3 to insert into the hole drilled by the sharp insertion fixing part 3 when making the foam glue, let the patient lie down and adjust to the appropriate position, then hold the handle 1 with the palm, and keep the palm and arm consistent with the position fixation during reduction.

[0029] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. A breast and body foam radiotherapy position fixation auxiliary tool, characterized in that: include: A handle, one end of which is extended along the axial direction of the handle to have a positioning portion for forming a mark positioning point on the surface of the foam rubber during the foam rubber expansion molding stage, and the other end of the handle is extended along the axial direction of the handle to have a sharp insertion fixing portion for vertically inserting into the foam rubber according to the mark positioning point formed by the positioning portion after the foam rubber is cooled and molded.

2. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 1, characterized in that: A partition plate for separating the handle and the sharp insertion fixing portion is connected between the other end of the handle and the sharp insertion fixing portion.

3. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 2, characterized in that: The axial length of the handle is greater than the axial length of the sharp insertion fixing portion.

4. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 3, characterized in that: The axial length of the handle is twice the axial length of the sharp insertion fixing portion.

5. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 4, characterized in that: The handle is a cylinder, the positioning part and the sharp insertion fixing part are both cones, the large end diameter of the positioning part is equal to the diameter of the handle, and the large end diameter of the sharp insertion fixing part is 1 / 2 of the diameter of the handle.

6. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 5, characterized in that: The end of the positioning portion is a pointed end.

7. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 5, characterized in that: The partition plate is a circular partition plate, and the diameter of the partition plate is three times the diameter of the handle.

8. The breast and body foam radiotherapy position fixation auxiliary tool as claimed in claim 7, characterized in that: The handle has an axial length of 10 cm and a diameter of 2 cm, the sharp insertion fixing portion has an axial length of 5 cm and a large end diameter of 1 cm, the positioning portion has an axial length of 0.5 cm and a large end diameter of 2 cm, and the partition plate has an axial thickness of 0.3 cm and a diameter of 6 cm.

9. The breast and body foam radiotherapy position fixation auxiliary tool according to any one of claims 2 to 8, characterized in that: The imprint positioning point is concave printing.

10. The breast and body foam radiotherapy position fixation auxiliary tool according to any one of claims 2 to 8, characterized in that: The handle, the positioning part, the sharp insertion fixing part and the partition plate are all an integrated structure made of high temperature resistant PA-12 nylon material.

Images