Wing-shaped body position fixator for radiotherapy

Abstract

The utility model relates to the field of radiotherapy, and discloses a wing-shaped body position fixator for radiotherapy, which comprises an upper layer, a lower layer is arranged at the lower end of the upper layer, filler is arranged between the upper layer and the lower layer, and an automatic sealing nozzle is arranged at the center of the side wall at the joint of the upper layer and the lower layer and close to the edge. A cloth bag is arranged at the position, close to the rear end, of the center of the upper end face of the upper layer, a U-shaped supporting component is arranged in the cloth bag, the lower end of the cloth bag is fixedly connected to the upper end face of the upper layer, and second side wings are arranged at the positions, close to the lower end edges, of the centers of the two side walls of the cloth bag correspondingly. First side wings are fixedly connected to the rear sides of the centers of the two side walls of the upper layer and the lower layer respectively. According to the utility model, the two second side wings are matched with the two first side wings, so that the arms of the patient can be supported when being lifted upwards, the arms can be placed comfortably, and the phenomenon of non-autonomous shaking is reduced, thereby reducing the displacement of body surface marks caused by skin traction, and reducing the error amplitude of the head and foot directions and the left and right directions of the patient.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy, and in particular to a wing-shaped body position fixator for radiotherapy. Background Technology

[0002] Radiation therapy (RT) is the treatment of cancer using radiation. With a history spanning over a century, RT was quickly adopted for the clinical treatment of malignant tumors after Röntgen's discovery of X-rays and Marie Curie's discovery of radium. Even today, RT remains one of the important local treatment methods for malignant tumors.

[0003] Positioning during radiotherapy is crucial. Its purpose is to limit involuntary patient movement, minimize positioning errors, improve treatment accuracy, and ensure reproducibility. From tumor localization and positioning fixation to treatment planning, position verification, and daily treatment positioning, the same patient position must be maintained to guarantee the accuracy of radiotherapy. Even with a well-designed treatment position, deviations can still occur, such as poor patient self-control leading to inconsistent positioning. Positioning aids are essential to ensure consistent treatment positioning. These aids not only ensure the patient is in the correct position but also maintain that position throughout treatment or ensure repetition of the position during each session, preventing unconscious changes in position due to patient movement.

[0004] Currently, most body positioning devices used are negative pressure vacuum pads and low-temperature thermoplastic materials made of high-molecular polyester. They can be categorized by the fixation site, such as facial, head, neck, and shoulder pads, pleura, and peritoneum. This plastic mesh membrane material can soften in water at 60-70 degrees Celsius, exhibiting excellent plasticity. When applied with matching fasteners, it is molded onto the patient's fixation site to create a body shape, hardening in 3-5 minutes. This method is widely used in the radiotherapy departments of large hospitals in my country. Usage shows that this fixation method is simple to operate, lightweight, stable, has minimal error, and is reusable.

[0005] Currently, in radiotherapy for tumors in the head, neck and shoulder, chest, abdomen, and limbs, auxiliary devices such as masks, head and neck masks, pleural masks, peritoneal masks, and custom-made masks and vacuum pads are mostly used. The positioning techniques employed include: one is the supine fixation method, where a suitable head pillow is selected, and the patient lies supine on a positioning frame, secured with a thermoplastic membrane. The second is the prone fixation method, where the patient lies prone on the treatment bed, with the head secured using a chin-fixing pillow and a thermoplastic membrane. Another is the lateral fixation method, where the head is secured using a perforated special head pillow and a thermoplastic membrane. There are also special fixation methods, where a specific position is selected based on the irradiation site, using a custom-made thermoplastic membrane for fixation.

[0006] Currently available vacuum bags for radiotherapy positioning are mostly rectangular in shape, made of waterproof and airtight fabric, filled with foam particles, and have automatic sealing caps. However, their sizes are inconsistent. When selecting a vacuum bag based on the patient's height, weight, and body type, it lacks support for the patient's arm when it needs to be raised. This results in the arm dangling in the air, causing involuntary arm tremors and skin traction that shifts surface landmarks, thus affecting treatment accuracy. Furthermore, when using the pleura and peritoneum for positioning fixation in patients with chest and abdominal conditions, inconsistencies in positioning techniques and horizontal levels can lead to skin traction and shifting of surface landmarks, resulting in errors in treatment position. These errors are generally larger in the head-to-toe and lateral directions. Therefore, those skilled in the art have provided a wing-shaped positioning device for radiotherapy to address the problems mentioned in the background section. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wing-shaped body position fixator for radiotherapy. The materials used in its manufacture are readily available and can be customized according to clinical requirements. This wing-shaped radiotherapy body position fixator can be used alone or in conjunction with a thermoplastic membrane for the chest and abdomen. After fixation, it ensures the repeatability and consistency of the treatment position, provides support when the patient raises their arms, ensures comfortable arm placement, and reduces involuntary shaking. This reduces the displacement of surface landmarks caused by skin traction and minimizes the error in the patient's head-to-toe and left-to-right orientation.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wing-shaped body fixation device for radiotherapy, comprising an upper layer, a lower layer at the lower end of the upper layer, a filler material between the upper and lower layers, an automatic sealing nozzle at the center of the side wall near the edge at the connection between the upper and lower layers, a cloth bag at the center of the upper surface near the rear end of the upper layer, a U-shaped support component inside the cloth bag, the lower end of the cloth bag being fixedly connected to the upper surface of the upper layer, second side wings at the center of the lower edge of the two side walls of the cloth bag, the lower ends of the two second side wings being fixedly connected to the upper surface of the upper layer, and first side wings being fixedly connected at the center of the rear side of the two side walls of the upper and lower layers.

[0009] The above technical solution is easy to manufacture with readily available materials and can be customized according to clinical requirements. This wing-shaped radiotherapy positioning device can be used alone or in conjunction with a thermoplastic membrane for the chest and abdomen. After positioning, it ensures the repeatability and consistency of the treatment position, provides support when the patient raises their arms, ensures comfortable arm placement, and reduces involuntary shaking. This reduces the displacement of surface landmarks caused by skin traction and minimizes the error in the patient's head-to-feet direction and left-to-right direction.

[0010] Furthermore, the other end of the automatic sealing nozzle is connected to a vacuum pump, and the vacuum pump and the automatic sealing nozzle are detachably connected.

[0011] The above technical solution uses a vacuum pump to evacuate the interior of the upper and lower layers, which facilitates subsequent shaping.

[0012] Furthermore, convex attachments are fixedly connected to the center of the lower end face of the lower layer at four opposite corners;

[0013] The above technical solution facilitates connection and installation with body positioning fixation devices.

[0014] Furthermore, the U-shaped support component is made of high-density foam;

[0015] The above technical solution has high strength and durability, as well as better support.

[0016] Furthermore, the filler material is foam particles;

[0017] The above technical solution provides good comfort.

[0018] Furthermore, the upper and lower layers are connected by heat fusion;

[0019] The above technical solution uses heating equipment to heat-melt the edges of the upper and lower layers, making the connection between the two more tight.

[0020] Furthermore, the bag is made of pure cotton;

[0021] The above technical solution provides excellent comfort and breathability.

[0022] This utility model has the following beneficial effects:

[0023] In this invention, the materials are readily available and can be customized according to clinical requirements. This wing-shaped radiotherapy positioning device can be used alone or in conjunction with a thermoplastic membrane for the chest and abdomen. After positioning, it ensures the repeatability and consistency of the treatment position.

[0024] In this invention, by setting two second side wings in conjunction with two first side wings, the patient's arm is supported when raised, the arm is placed comfortably, and the occurrence of involuntary shaking is reduced, thereby reducing the displacement of body surface markers caused by skin traction and reducing the error range of the patient's head-to-foot direction and left-to-right direction. Attached Figure Description

[0025] Figure 1 This is an isometric view of a wing-shaped body position fixator for radiotherapy proposed in this utility model;

[0026] Figure 2 This is a front sectional view of a wing-shaped body position fixator for radiotherapy proposed in this utility model;

[0027] Figure 3 This is an axonometric view of another perspective of the wing-shaped body fixation device for radiotherapy proposed in this utility model.

[0028] Figure 4 This is a top view of a wing-shaped body position fixator for radiotherapy proposed in this utility model.

[0029] Legend:

[0030] 1. Upper layer; 2. First side wing; 3. Cloth bag; 4. Second side wing; 5. Lower layer; 6. Filler; 7. U-shaped support component; 8. Automatic sealing nozzle; 9. Vacuum pump; 10. Convex accessory. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-4 This utility model provides an embodiment of a wing-shaped body fixation device for radiotherapy, comprising an upper layer 1, a lower layer 5 at the lower end of the upper layer 1, a filler 6 between the upper layer 1 and the lower layer 5, an automatic sealing nozzle 8 at the center of the side wall near the edge of the connection between the upper layer 1 and the lower layer 5, a cloth bag 3 at the center of the upper end face near the rear end of the upper surface of the upper layer 1, a U-shaped support component 7 inside the cloth bag 3, the lower end of the cloth bag 3 being fixedly connected to the upper end face of the upper layer 1, and second side wings 4 at the center of the lower end edges of the two side walls of the cloth bag 3, the lower ends of the two second side wings 4 being fixedly connected to the upper end face of the upper layer 1, the center of the two side walls of the upper layer 1 near the lower edge of the lower end of the upper layer 5 being fixedly connected to the upper end face of the upper layer 1, the center of the two side walls of the upper layer 1 and the lower layer 5 being fixedly connected to the lower end edges ... The device has first side wings 2 fixedly connected to the rear side. When the patient raises their arm, they place it on the upper end of the two second side wings 4. Then, the two first side wings 2 are folded in the opposite direction and placed under the lower end of the patient's arm, providing sufficient support for the arm. The materials are readily available and can be customized according to clinical requirements. This wing-shaped radiotherapy positioning device can be used alone or in conjunction with a chest and abdomen thermoplastic membrane. After positioning, it ensures the repeatability and consistency of the treatment position, providing support when the patient raises their arm, ensuring comfortable arm placement, and reducing involuntary shaking. This reduces displacement of surface landmarks caused by skin traction, and minimizes errors in the patient's head-to-toe and left-to-right orientations.

[0033] The other end of the automatic sealing nozzle 8 is connected to a vacuum pump 9. The vacuum pump 9 and the automatic sealing nozzle 8 are detachably connected. The vacuum pump 9 is used to vacuum the interior of the upper layer 1 and the lower layer 5 to facilitate subsequent shaping. The lower end face of the lower layer 5 is fixedly connected to four opposite corners with convex attachments 10 to facilitate connection and installation with the body positioning device. The U-shaped support component 7 is made of high-density foam, which has high strength and durability, and also has better support. The filling material 6 is made of foam particles, which has good comfort. The upper layer 1 and the lower layer 5 are connected by heat fusion. The edges of the upper layer 1 and the lower layer 5 are heat fused together by heating equipment to make the connection between the two tighter. The cloth bag 3 is made of pure cotton, which has good comfort and breathability.

[0034] Working principle: This utility model is a wing-shaped body fixation device for radiotherapy. During use, the patient's body position is adjusted to be comfortable, so that the four convex attachments 10 are tightly connected with the wing-shaped radiotherapy body fixation device. The patient's body midline is aligned with or parallel to the midline of the body fixation device. The patient's arm is raised and placed on the upper end of the second side wings 4 on both sides of the U-shaped support component 7, and the two first side wings 2 are respectively filled in the upper arm suspension area, so that the patient's arm is raised and placed comfortably and for a long time. After the body of the wing-shaped radiotherapy body fixation device fits tightly with the patient's body contour, vacuum forming is performed using a vacuum pump 9. Depending on the actual clinical situation, the wing-shaped radiotherapy body fixation device can be used alone or in combination with the chest and abdomen thermoplastic film to adopt a comprehensive body fixation method.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wing-shaped body fixation device for radiotherapy, comprising an upper layer (1), characterized in that: The lower end of the upper layer (1) is provided with a lower layer (5), and a filler (6) is provided between the upper layer (1) and the lower layer (5). An automatic sealing nozzle (8) is provided at the center of the side wall near the edge of the connection between the upper layer (1) and the lower layer (5). A cloth bag (3) is provided at the center of the upper surface of the upper layer (1) near the rear end. A U-shaped support component (7) is provided inside the cloth bag (3). The lower end of the cloth bag (3) is fixedly connected to the upper surface of the upper layer (1). A second side wing (4) is provided at the center of the two side walls of the cloth bag (3) near the lower edge. The lower ends of the two second side wings (4) are fixedly connected to the upper surface of the upper layer (1). A first side wing (2) is fixedly connected at the center of the two side walls of the upper layer (1) and the lower layer (5) near the rear side.

2. The wing-shaped body positioner for radiotherapy according to claim 1, characterized in that: The other end of the automatic sealing nozzle (8) is connected to a vacuum pump (9), and the vacuum pump (9) and the automatic sealing nozzle (8) are detachably connected.

3. The wing-shaped body positioner for radiotherapy according to claim 1, characterized in that: The lower layer (5) has convex attachments (10) fixedly connected to the center of the lower end face at the four opposite corners.

4. The wing-shaped body positioning device for radiotherapy according to claim 1, characterized in that: The U-shaped support component (7) is made of high-density foam.

5. The wing-shaped body positioner for radiotherapy according to claim 1, characterized in that: The filler (6) is made of foam particles.

6. The wing-shaped body positioner for radiotherapy according to claim 1, characterized in that: The upper layer (1) and the lower layer (5) are connected by heat fusion.

7. The wing-shaped body positioner for radiotherapy according to claim 1, characterized in that: The cloth bag (3) is made of pure cotton.

Images