Radiotherapy body position fixing frame

By designing a radiotherapy position fixation device with adjustable handles, leg supports and hip fixation frames, the problem of unstable position in traditional radiotherapy equipment is solved, and the radiotherapy efficiency and patient comfort are improved.

CN223336635UActive Publication Date: 2025-09-16THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202422128561.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-31
Publication Date
2025-09-16
Estimated Expiration
2034-08-31

AI Technical Summary

Technical Problem

Traditional radiotherapy equipment lacks body positioning devices, making it difficult for patients to maintain the correct body position for a long time during radiotherapy, resulting in repeated adjustments and unnecessary radiation.

Method used

A radiotherapy position fixation device consisting of a headrest and a lower limb support was designed. The adjustable handle, retractable leg support and hip fixation frame, combined with a silicone film to increase friction, ensure that the patient maintains a stable position during radiotherapy.

Benefits of technology

It enables patients to maintain a stable body position for a long time during radiotherapy, reduces the number of repeated adjustments required by doctors, and improves radiotherapy efficiency and patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a radiotherapy body position fixing frame which comprises a headrest frame and a lower limb bracket. The headrest frame comprises a headrest supporting plate, a headrest and two handles; the bottom of the headrest is detachably connected with one side of the headrest supporting plate; the two handles are distributed at the two ends of the other side of the headrest one by one and are in translation sliding connection with the headrest so as to be close to or away from each other; the lower limb bracket comprises a lower limb supporting plate, a leg support and a hip fixing frame; one end of the leg support is hinged to the lower limb supporting plate, a supporting leg capable of being telescopically adjusted is hinged to the middle of the bottom face of the leg support, a clamping groove is formed in the top face of the lower limb supporting plate, and the supporting leg abuts against the interior of the clamping groove; the two sides, corresponding to the hinged position of the leg support, of the lower limb supporting plate are each provided with an inserting groove, one end of the hip fixing frame is detachably embedded in one inserting groove, and the hip fixing frame and the lower limb supporting plate are perpendicularly distributed. According to the utility model, a patient can easily maintain a radiotherapy position for a long time, and the displacement of a tumor part in the radiotherapy process is avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to a radiotherapy body position fixing frame. Background Art

[0002] Radiation therapy, also known as radiotherapy, is an effective treatment for tumors. A crucial step before radiotherapy is radiotherapy positioning. This involves using a CT scanner to locate the tumor and determine the radiation range. During this process, the patient must be positioned in a fixed position. Particularly during prostate radiotherapy, to prevent interference from movement of the pelvis and internal organs, the patient must lie flat on their torso, with their arms extended toward their head and their legs bent and abducted. This prevents significant movement of the patient's torso, hands, hips, and legs, minimizing errors and improving radiotherapy accuracy. However, conventional radiotherapy or CT equipment lacks a positioning device on the treatment couch. Patients rely on a doctor's guidance to achieve the correct positioning while lying on the couch, which is difficult to maintain for extended periods. Any displacement of the torso or hips requires repeated guidance from the doctor, which can be cumbersome and result in unnecessary radiation exposure. To prevent tumor displacement during radiotherapy, the corresponding area should be fixed before treatment. A device specifically designed for radiotherapy positioning is needed. Summary of the Invention

[0003] The utility model provides a radiotherapy position fixing frame, which can allow patients to easily maintain the radiotherapy position for a long time and avoid displacement of the tumor part during the radiotherapy process.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A radiotherapy position fixing frame, comprising a headrest frame and a lower limb support; the headrest frame comprises a headrest support plate, a headrest and two handles; the bottom of the headrest is detachably connected to one side of the headrest support plate; the two handles are distributed one by one at the two ends of the other side of the headrest, and the two handles are connected to the headrest for translation and sliding to approach or move away from each other; the lower limb support comprises a lower limb support plate, a leg support and a hip fixing frame; one end of the leg support is hinged to the lower limb support plate, and a telescopically adjustable supporting foot is hinged to the middle part of the bottom surface of the leg support, and a card slot is provided on the top surface of the lower limb support plate, and the supporting foot abuts against the card slot; the lower limb support plate is respectively provided with a slot on both sides corresponding to the hinge of the leg support, and one end of the hip fixing frame is detachably embedded in one of the slots, and the hip fixing frame is vertically distributed to the lower limb support plate.

[0006] Furthermore, one side of the headrest support plate is fixedly connected to a guide rail, the bottoms of the two handles are slidably embedded in the guide rail and are connected by translational sliding along the guide rail, and the headrest is detachably connected to the other side of the headrest support plate by Velcro.

[0007] Furthermore, a square slider is threadedly connected to the bottom of the handle, and the square slider is slidably embedded in the guide rail.

[0008] Furthermore, the bottom of the headrest is detachably connected to the support plate via Velcro.

[0009] Furthermore, the supporting foot includes a telescopic rod and a cross bar; the top of the telescopic rod is hinged to the bottom surface of the leg support, the bottom of the telescopic rod is fixedly connected to the middle part of the cross bar, and the middle part of the telescopic rod is provided with a knob with adjustable length; the top surface of the lower limb support plate is provided with an abutment block, and the top of the abutment block is provided with a plurality of spaced slots, and the cross bar is embedded in one of the slots.

[0010] Furthermore, a square plug is provided on each side of the lower limb support plate, one side of the square plug is fixedly connected to the lower limb support plate, a slot is provided in the square plug, and one end of the hip fixing frame is detachably embedded in the slot.

[0011] Furthermore, the bottoms of the headrest support plate and the lower limb support plate are fixedly covered with a layer of silicone film.

[0012] The beneficial effects of the utility model are:

[0013] 1) The present invention can arrange appropriate spacing according to the patient's body size. The patient lies flat on the treatment bed, extends both hands toward the head and holds the handles. The spacing between the two handles is adjustable, which can make the patient's holding posture more comfortable; the legs are supported by the lower limb brackets to support the patient in a knee-bent and abducted posture. After the patient lies down and adjusts the posture, the hip fixing frame can be inserted into both sides of the lower limb bracket to keep the hip position unchanged, so that the patient can maintain the radiotherapy position stably for a long time, avoiding the doctor's repeated instructions on the placement of the radiotherapy position, avoiding unnecessary radiotherapy times for the patient, and improving the radiotherapy efficiency.

[0014] 2) The handle is threadedly connected to the square slider and can be positioned horizontally along the guide rail. The spacing can be adjusted according to patients of different body shapes, so that the patient's hands can naturally stretch to both sides of the head, improving the patient's tolerance.

[0015] 3) The leg rest can be flipped along the lower limb support plate to adjust the inclination, and the support foot can be used to fix the angle. The inclination can be adjusted according to the patient's knee flexion posture to best fit the patient's lower thigh and support the patient's natural knee flexion. The flip adjustment of the leg rest consists of two parts. It can be adjusted by the telescopic height of the support foot itself, or it can be adjusted according to the slots set at several intervals on the top of the abutment block. The adjustment operation is more convenient and the adjustment accuracy is better.

[0016] 4) The bottom of the headrest support plate and the lower limb support plate are fixedly covered with a layer of silicone film. The large friction coefficient of the silicone material can effectively increase the fixing effect of the headrest support plate and the lower limb support plate to the treatment bed and prevent slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a further detailed description of the specific embodiments of the present invention with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a three-dimensional diagram of the utility model when placed;

[0019] Figure 2 It is a three-dimensional diagram of the headrest frame in the utility model;

[0020] Figure 3 The three-dimensional structure of the lower limb bracket in the utility model Figure 1 ;

[0021] Figure 4 The three-dimensional structure of the lower limb bracket in the utility model Figure 2 ;

[0022] Figure ID:

[0023] 1-headrest frame, 2-lower limb bracket, 11-headrest support plate, 12-headrest, 13-handle, 14-guide rail, 15-square slider, 21-lower limb support plate, 22-leg support, 23-hip fixing frame, 24-support foot, 25-card slot, 26-square plug, 241-telescopic rod, 242-cross bar. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. When a component is referred to as being "set in the middle", it does not only mean being set in the exact middle position, but also means being within the range defined by the middle as long as both ends are not set. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Reference Figures 1 to 4 As shown, a radiotherapy body position fixing frame includes a headrest frame 1 and a lower limb bracket 2.

[0028] The headrest frame 1 includes a headrest support plate 11, a headrest 12 and two handles 13, the bottom of the headrest 12 is detachably connected to one side of the headrest support plate 11; the bottom of the headrest 12 is detachably connected to one side of the headrest support plate 11 by Velcro; the two handles 13 are distributed one at each end of the other side of the headrest 12, and the side of the headrest support plate 11 is fixedly connected to a guide rail 14, and the bottom of the handle 13 is threadedly connected to a square slider 15, and the square slider 15 is slidably embedded in the guide rail 14, and the bottoms of the two handles 13 are slidably embedded in the guide rail 14 through the square slider 15, and are translated and slidably connected along the guide rail 14, and the two handles 13 are translated and slidably connected to the headrest 12 to move closer to or away from each other; during radiotherapy, the patient lies flat on the treatment bed, extends his hands toward the head and holds the handles 13, and the distance between the two handles 13 is adjustable, which can make the patient's holding posture more comfortable.

[0029] The lower limb support 2 is used to support the patient's legs to flex their knees. The lower limb support 2 includes a lower limb support plate 21, a leg support 22 and a hip fixing frame 23; one end of the leg support 22 is hinged to the lower limb support plate 21, and a telescopically adjustable supporting foot 24 is hinged to the middle part of the bottom surface of the leg support 22. The top surface of the lower limb support plate 21 is provided with a card slot 25, and the supporting foot 24 abuts against the card slot 25; a square plug block 26 is provided on each side, one side of the square plug block 26 is fixedly connected to the lower limb support plate 21, and a slot is provided in the square plug block 26, one end of the hip fixing frame 23 is detachably embedded in the slot, and the hip fixing frame 23 is vertically distributed with the lower limb support plate 11. In order to allow the two hip fixing frames 23 to better fix the patient's buttocks, sponge pads or other fillers can be added to the inner sides of the two hip fixing frames 23. The support foot 24 includes a telescopic rod 241 and a cross bar 242; the top of the telescopic rod 241 is hinged to the bottom surface of the leg support 22, the bottom of the telescopic rod 241 is fixedly connected to the middle of the cross bar 242, and the middle of the telescopic rod 241 is provided with a knob for adjusting the length; the top surface of the lower limb support plate 21 is provided with an abutment block, the top of the abutment block is provided with a number of slots 25 set at intervals, and the cross bar 242 is embedded in one of the slots 25. The leg support 22 is tilted along the lower limb support plate 21 to adjust the inclination, and is supported by the support foot 24 at a fixed angle. The tilt can be adjusted according to the patient's knee flexion posture to best fit the patient's lower thigh and support the patient's natural knee flexion; the flip adjustment of the leg support 22 consists of two parts, which can be adjusted by the telescopic height of the support foot 24 itself, or by adjusting according to the slots 25 set at intervals on the top of the abutment block. The adjustment operation is more convenient and the adjustment accuracy is better.

[0030] In order to increase the fixing effect between the headrest support plate 11 and the lower limb support plate 21 and the treatment bed, a layer of silicone film is fixedly attached to the bottom of the headrest support plate 11 and the lower limb support plate 21. The large friction coefficient of the silicone material is used to prevent slipping when the patient's body is pressed on the lower limb support plate 2 and the headrest frame 1.

[0031] The headrest frame 1 and the lower limb support frame 2 in the present invention are of separate design, and can be arranged at a suitable distance according to the patient's body shape when in use. The headrest frame 1 allows the patient to lie flat on the treatment bed with both hands extended toward the head and hold the handles 13. The distance between the two handles 13 is adjustable, which can make the patient's holding posture more comfortable; the lower limb support frame 2 supports the legs and supports the patient to assume a knee-bent and abducted posture. After the patient lies down and adjusts the posture, the hip fixing frame 23 can be inserted into both sides of the lower limb support frame to keep the hip position unchanged, so that the patient can maintain the radiotherapy position stably for a long time, avoid the doctor's repeated instructions on how to place the radiotherapy position, avoid the patient from receiving unnecessary radiotherapy times, and improve the radiotherapy efficiency.

[0032] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be included in the scope of the technical solution of the present invention.

Claims

1. A radiotherapy position fixation frame, characterized in that: It includes a headrest frame and a lower limb support; the headrest frame includes a headrest support plate, a headrest and two handles; the bottom of the headrest is detachably connected to one side of the headrest support plate; the two handles are distributed one by one at the two ends of the other side of the headrest, and the two handles are slidably connected to the headrest to move closer to or away from each other; the lower limb support includes a lower limb support plate, a leg support and a hip fixing frame; one end of the leg support is hinged to the lower limb support plate, and a telescopically adjustable supporting foot is hinged to the middle part of the bottom surface of the leg support, and the top surface of the lower limb support plate is provided with a card slot, and the supporting foot abuts against the card slot; the lower limb support plate is respectively provided with a slot on both sides of the leg support hinge, and one end of the hip fixing frame is detachably embedded in one of the slots, and the hip fixing frame is vertically distributed with the lower limb support plate.

2. A radiotherapy body position fixation frame according to claim 1, characterized in that: One side of the headrest support plate is fixedly connected to a guide rail, the bottoms of the two handles are slidably embedded in the guide rail and are connected by translational sliding along the guide rail, and the headrest is detachably connected to the other side of the headrest support plate by Velcro.

3. A radiotherapy body position fixation frame according to claim 2, characterized in that: The bottom of the handle is threadedly connected to a square slider, and the square slider is slidably embedded in the guide rail.

4. The radiotherapy body position fixation frame according to claim 1, characterized in that: The bottom of the headrest is detachably connected to the supporting plate via Velcro.

5. The radiotherapy body position fixation frame according to claim 1, characterized in that: The supporting foot includes a telescopic rod and a cross bar; the top of the telescopic rod is hinged to the bottom surface of the leg support, the bottom of the telescopic rod is fixedly connected to the middle part of the cross bar, and the middle part of the telescopic rod is provided with a knob with adjustable length; the top surface of the lower limb support plate is provided with an abutment block, and the top of the abutment block is provided with a plurality of slots arranged at intervals, and the cross bar is embedded in one of the slots.

6. The radiotherapy body position fixation frame according to claim 1, characterized in that: A square plug is provided on each side of the lower limb support plate, one side of the square plug is fixedly connected to the lower limb support plate, a slot is provided in the square plug, and one end of the hip fixing frame is detachably embedded in the slot.

7. The radiotherapy body position fixation frame according to claim 1, characterized in that: The bottoms of the headrest support plate and the lower limb support plate are both fixedly covered with a layer of silicone film.