Multi-degree-of-freedom external human body fixing frame

Abstract

The invention relates to a multi-degree-of-freedom external human body fixing frame, and discloses an external human body fixing frame which supports the head of a patient through a placement assembly, realizes small-amplitude accurate rotation adjustment of the head through an adjustment assembly, realizes lifting adjustment of the neck position through a correction assembly, and ensures accurate and consistent position of the patient during radiotherapy through cooperation of multiple assemblies. The device is characterized in that the device comprises a body supporting plate, an adjusting groove, positioning holes, an adjusting assembly, a placement assembly and a correction assembly, the body supporting plate is provided with the adjusting groove and the multiple positioning holes, the positioning holes can fix the position of the radiotherapy net-shaped mask, the adjusting assembly is arranged in the adjusting groove, the placement assembly is clamped on the adjusting assembly, and the correction assembly is arranged on the body supporting plate. The correcting assembly is arranged on the body supporting plate and is close to the adjusting groove, the adjusting assembly drives the placing assembly to rotate so as to drive the head to rotate in a small range, and the correcting assembly is attached to the neck to drive the lower jaw to ascend and descend so that the positions of the heads can coincide after multiple times of chemotherapy.

Description

Technical Field

[0001] The present invention relates to a multi-degree-of-freedom external human body fixator, which relates to a multi-degree-of-freedom external human body fixator capable of performing multi-directional and small-amplitude adjustments to the head during radiotherapy. The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to an external human body fixator that supports the patient's head through a placement component, achieves small-amplitude and precise rotation adjustment of the head through an adjustment component, and achieves lifting and lowering adjustment of the neck position through a correction component. The multiple components work together to ensure that the patient's position is accurate and consistent during radiotherapy. Background Art

[0002] During radiotherapy, precise radiotherapy positioning is a key step in ensuring treatment effectiveness and reducing side effects. For radiotherapy of head tumors, due to the complex structure of the head and the fact that tumors are often located near important nerves and organs, even slight positional deviations can prevent the radiation from accurately targeting the tumor target, affecting not only the treatment effect but also causing unnecessary radiation damage to surrounding healthy tissues. Therefore, precise and stable fixation of the patient's head during radiotherapy positioning is crucial. Existing head fixation technology has many drawbacks. First, because it is difficult for patients to maintain a completely consistent lying position each time, and because of individual differences in head contours, even after initial fixation, small positional deviations may still exist. Second, existing fixation frames lack a real-time position adjustment mechanism. Once deviations occur, the patient's head position cannot be dynamically adjusted slightly according to the real-time situation during treatment. This makes it difficult to ensure a high degree of overlap in the head position during multiple radiotherapy sessions, which in turn affects the accuracy of the radiotherapy dose distribution, reduces treatment effectiveness, and may even delay the disease, posing additional risks to the patient.

[0003] Publication number CN220046875U discloses a radiotherapy head mount, relating to the field of medical device technology. It comprises a radiotherapy bed, with a square opening at the top, a movable member slidably connected within the opening, a groove at the top of the movable member, a headrest rotatably connected within the groove, and a connecting frame fixed to the bottom end of the radiotherapy bed. A cylinder is fixed to the inner wall of the bottom end of the connecting frame, located directly below the movable member. The output end of the cylinder is fixed to the bottom end of the movable member, and an adjustment mechanism is provided through the groove for adjusting the angle of the headrest. However, the radiotherapy mount adopts a fixed structure with a preset shape, and its shape and size are designed only based on the average data of the human head. During long-term chemotherapy, patients are forced to maintain an unnatural posture to adapt to the mount, which can easily cause neck and head muscle fatigue and soreness. Summary of the Invention

[0004] In order to improve the above situation, the present invention provides a multi-degree-of-freedom external human body fixation frame that supports the patient's head through a placement component, realizes small and precise rotation adjustment of the head through an adjustment component, and realizes lifting and lowering adjustment of the neck position through a correction component. Multiple components work together to ensure that the patient's position is accurate and consistent during radiotherapy.

[0005] The multi-degree-of-freedom external human body fixation frame of the present invention is realized as follows: The multi-degree-of-freedom external human body fixation frame of the present invention includes a body support plate, an adjustment slot, a positioning hole, an adjustment component, a placement component and a correction component. The invention is characterized in that the body support plate is provided with an adjustment slot and a plurality of positioning holes, the positioning holes can fix the position of the radiotherapy mesh mask, the adjustment component is placed in the adjustment slot, the placement component is clamped on the adjustment component, the correction component is placed on the body support plate and arranged close to the adjustment slot, the adjustment component drives the placement component to rotate, thereby driving the head to rotate slightly, the correction component fits the neck to drive the lower jaw to rise and fall so that the head position overlaps during multiple chemotherapy treatments. The adjustment assembly consists of an adjustment transmission block, a rotating shaft, a simple installation slot, an arc-shaped rack, a transmission motor and a transmission gear. The adjusting transmission block is placed in the adjusting slot. The adjusting transmission block is cylindrical in structure, and its diameter increases and decreases in an arc shape from the top to the bottom. A rotating shaft is fixed on the side of the middle of the adjusting transmission block, and two rotating shafts are arranged equidistantly along the circumference of the adjusting transmission block. The adjusting transmission block is rotatably connected to the body support plate through the rotating shaft. The top of the adjusting transmission block is provided with a simple installation slot, the width of which gradually decreases from the top to the bottom. The side of the adjusting transmission block is provided with an arc-shaped rack, and the distance between the arc-shaped rack and the two rotating shafts is the same. The transmission motor is fixed in the adjustment slot. One axle of the transmission gear is fixedly connected to the motor shaft of the transmission motor, and the other axle of the transmission gear is rotatably connected to the body support plate, and the transmission gear is meshed with the arc-shaped rack. The placement component consists of a simple installation block, a direction adjustment block, a silicone rubber bag and foam glue. The simple installation block is placed in the adjustment transmission block through the simple installation slot. The middle of the bottom end of the direction adjustment block is fixedly connected to the top surface of the simple installation block. The silicone rubber bag is fixed on the direction adjustment block. The silicone rubber bag is filled with foam glue. Preferably, a fast curing agent is added to the foaming glue. The correction component consists of an arc-shaped adaptive block, an electric push rod and a neck pillow. The arc-shaped adaptable block is in the form of a long strip, and the width of the arc-shaped adaptable block gradually increases from the top to the bottom. One end of the electric push rod is fixedly connected to the body support plate, and the other end of the electric push rod is fixedly connected to the bottom surface of the arc-shaped adaptation block. The two electric push rods are respectively arranged near the two ends of the arc-shaped adaptation block. The neck pillow cover is placed on the arc-shaped adaptation block and is fixedly connected to the body support plate. A sealed space is formed between the neck pillow and the body support plate. The arc-shaped adaptation block and the electric push rod are placed in the neck pillow. Beneficial effects

[0006] 1. The adjustment component allows for slight head rotation, the correction component controls neck elevation, and the positioning holes are used to secure the mask, ensuring that the head position is highly aligned during radiotherapy, improving accuracy.

[0007] 2. The silicone rubber bag is actively shaped with foam glue to fit the contour of the patient's head. Combined with the doctor's trimming, it can achieve individualized and precise fixation and reduce displacement errors.

[0008] 3. Multiple components work together to reduce the time spent on position adjustment during treatment and improve comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a three-dimensional structural diagram of a multi-degree-of-freedom external human body fixation frame of the present invention; Figure 2 This is a schematic structural diagram of a multi-degree-of-freedom external human body fixation frame according to the present invention; Figure 3 The figure is a schematic structural diagram of a multi-degree-of-freedom external human body fixation frame according to the present invention. Attached photos

[0010] The components include: a body support plate (1), an adjustment slot (2), a neck pillow (3), a direction adjustment block (4), a silicone rubber bag (5), a positioning hole (6), a rotating shaft (7), an arc-shaped adaptation block (8), an electric push rod (9), a simple installation block (10), a foaming rubber (11), an adjustment transmission block (12), a simple installation slot (13), an arc-shaped rack (14), a transmission gear (15), and a transmission motor (16). DETAILED DESCRIPTION Example

[0011] The multi-degree-of-freedom external human body fixing frame of the present invention is realized as follows: The multi-degree-of-freedom external human body fixing frame of the present invention comprises a body support plate (1), an adjustment slot (2), a positioning hole (6), an adjustment component, a placement component and a correction component, The invention is characterized in that an adjustment slot (2) and a plurality of positioning holes (6) are provided on the body support plate (1), the positioning holes (6) can fix the position of the radiotherapy mesh mask, the adjustment component is placed in the adjustment slot (2), the placement component is clamped on the adjustment component, the correction component is placed on the body support plate (1) and is arranged close to the adjustment slot (2), the adjustment component drives the placement component to rotate, thereby driving the head to rotate slightly, the correction component fits the neck to drive the lower jaw to rise and fall so that the head position overlaps during multiple chemotherapy treatments. The adjustment assembly is composed of an adjustment transmission block (12), a rotating shaft (7), a simple installation groove (13), an arc-shaped rack (14), a transmission motor (16) and a transmission gear (15). The adjusting transmission block (12) is placed in the adjusting groove (2). The adjusting transmission block (12) is a cylindrical structure, and its diameter increases and decreases in an arc shape from the top to the bottom. A rotating shaft (7) is fixedly disposed on the side of the middle portion of the adjusting transmission block (12), and two rotating shafts (7) are arranged equidistantly along the circumference of the adjusting transmission block (12). The adjusting transmission block (12) is rotatably connected to the body support plate (1) via the rotating shaft (7). The top of the adjusting transmission block (12) is provided with a simple installation groove (13), and the width of the simple installation groove (13) gradually decreases from the top to the bottom. An arc-shaped rack (14) is provided on the side of the adjusting transmission block (12), and the distance between the arc-shaped rack (14) and the two rotating shafts (7) is the same. The transmission motor (16) is fixedly placed in the adjustment slot (2). One axle of the transmission gear (15) is fixedly connected to the motor shaft of the transmission motor (16), the other axle of the transmission gear (15) is rotatably connected to the body support plate (1), and the transmission gear (15) is meshed with the arc-shaped rack (14). The placement assembly is composed of a simple installation block (10), a direction adjustment block (4), a silicone rubber bag (5) and a foaming glue (11). The simple installation block (10) is clamped into the adjustment transmission block (12) through the simple installation slot (13). The middle of the bottom end of the direction adjustment block (4) is fixedly connected to the top surface of the simple installation block (10). The silicone rubber bag (5) is fixed on the direction adjustment block (4). The silicone rubber bag (5) is filled with foaming glue (11). Preferably, a fast curing agent is added to the foaming glue (11). The correction component consists of an arc-shaped adaptation block (8), an electric push rod (9) and a neck pillow (3). The arc-shaped adapting block (8) is in the form of a long strip, and the width of the arc-shaped adapting block (8) gradually increases from the top to the bottom. One end of the electric push rod (9) is fixedly connected to the body support plate (1), and the other end of the electric push rod (9) is fixedly connected to the bottom surface of the arc-shaped adaptation block (8). The two electric push rods (9) are respectively arranged near the two ends of the arc-shaped adaptation block (8). The neck pillow (3) is placed on the arc-shaped adaptation block (8) and is fixedly connected to the body support plate (1). A sealed space is formed between the neck pillow (3) and the body support plate (1). The arc-shaped adaptation block (8) and the electric push rod (9) are placed in the neck pillow (3). When in use, the simple installation block (10) is clamped on the adjustment transmission block (12) through the simple installation slot (13), and then the foam glue (11) is injected into the interior of the silicone rubber bag (5). The patient immediately lies on the body support plate (1) and places the head on the silicone rubber bag (5). The foam glue (11) begins to actively shape the contour of the patient's head. During this process, the doctor can perform local trimming to make the silicone rubber bag (5) fit the patient's head better. After the foam glue (11) is shaped, the radiotherapy mesh mask is placed on the patient's face according to the position at this time, and is fixedly connected to the body support plate (1) through the positioning hole (6). Wait for the radiotherapy mesh mask to be fixed and formed, and determine the radiotherapy position to complete the preliminary determination of the radiotherapy position. During radiotherapy, when the patient's head deviates from the first marked position, the driving transmission motor (16) drives the transmission gear (15) to rotate. Since the transmission gear (15) is meshed with the arc-shaped rack (14), the adjustment transmission block (12) is driven to rotate slightly around the rotation axis (7), which makes it easier for medical staff to accurately grasp the rotation of the head. When adjusting the position of the patient's neck, the electric push rod (9) pushes the arc-shaped adaptation block (8) up and down, and the arc-shaped adaptation block (8) drives the neck pillow (3) mounted thereon to move, thereby controlling the position of the patient's neck and coordinating with the rotation adjustment of the head to achieve multi-dimensional precise adjustment of the patient's body position, ensuring that the position is consistent during each radiotherapy process and improving the accuracy of radiotherapy; The simple installation slot (13) is designed to gradually decrease in width from the top to the bottom, forming a tight snap connection with the simple installation block (10), facilitating the rapid installation and removal of the placement component, while ensuring the stability of the connection, preventing loosening during head adjustment, and improving the convenience and reliability of the device. The silicone rubber bag (5) is filled with a foaming glue (11) inside. The silicone rubber bag (5) has good flexibility and biocompatibility, can fit tightly with the patient's head, and provides a molding space for the foaming glue (11). After the foaming glue (11) is injected, it can be actively shaped according to the contour of the patient's head. Under the doctor's local trimming, personalized head fixation can be achieved, the fit and stability of the fixation can be improved, and the patient's discomfort during radiotherapy can be reduced; The design of adding a fast curing agent to the foaming glue (11) can shorten the shaping time, improve the treatment efficiency, and reduce the time for the patient to maintain the same posture, thereby improving the patient experience; The arc-shaped adaptation block (8) is in the form of a long strip. The arc-shaped adaptation block (8) is designed to gradually increase in width from the top to the bottom, so as to better fit the physiological curve of the patient's neck and provide comfortable and stable support for the neck. Under the action of the electric push rod (9), the lifting movement can be realized, thereby driving the patient's lower jaw to move up and down, accurately adjusting the position of the patient's neck, and ensuring the overlap of the head position during multiple radiotherapy sessions. The neck pillow (3) is placed on the arc-shaped adaptation block (8) and fixedly connected to the body support plate (1), forming a sealed space to accommodate the arc-shaped adaptation block (8) and the electric push rod (9). On the one hand, it provides comfortable support for the patient's neck, and on the other hand, it protects the internal correction components to prevent dust and debris from entering and affecting the performance of the components, while enhancing the overall aesthetics and safety of the device. The purpose is to support the patient's head through the placement component, achieve small and precise rotation adjustment of the head through the adjustment component, and achieve lifting and lowering adjustment of the neck position through the correction component. Multiple components work together to ensure the patient's position is accurate and consistent during radiotherapy.

[0012] It should be noted that, unless otherwise expressly specified or limited, the terms "placed in," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections such as hemming, rivet connection, pin connection, adhesive connection, and welding connection; detachable connections such as threaded connection, snap connection, and hinge connection; or integral connection; electrical connection; direct connection; indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0013] It should be further pointed out that, when describing the above specific embodiment, for the sake of simplicity and clarity, only the differences between the above specific embodiment and other embodiments are described. However, those skilled in the art should know that the above specific embodiment itself is also an independent technical solution.

Claims

1. A multi-degree-of-freedom external human body fixation frame, comprising a body support plate, an adjustment slot, a positioning hole, an adjustment component, a placement component, and a correction component, characterized in that: The body support plate is provided with an adjustment slot and a plurality of positioning holes, and the positioning holes can fix the position of the radiotherapy mesh mask. The adjustment component is placed in the adjustment slot, and the placement component is clamped on the adjustment component. The correction component is placed on the body support plate and arranged close to the adjustment slot. The adjustment component drives the placement component to rotate, thereby driving the head to rotate slightly. The correction component fits the neck to drive the lower jaw to rise and fall so that the head position overlaps during multiple chemotherapy treatments.

2. The multi-degree-of-freedom external human body fixation frame according to claim 1, characterized in that The adjusting assembly consists of an adjusting transmission block, a rotating shaft, a simple installation groove, an arc-shaped rack, a transmission motor and a transmission gear. The adjusting transmission block is placed in the adjusting groove, a rotating shaft is fixedly provided on the side of the middle part of the adjusting transmission block, the adjusting transmission block is rotatably connected to the body support plate through the rotating shaft, a simple installation groove is provided on the top of the adjusting transmission block, an arc-shaped rack is provided on the side of the adjusting transmission block, the transmission motor is fixed in the adjusting groove, one axle of the transmission gear is fixedly connected to the motor shaft of the transmission motor, the other axle of the transmission gear is rotatably connected to the body support plate, and the transmission gear is meshed with the arc-shaped rack.

3. The multi-degree-of-freedom external human body fixation frame according to claim 1, characterized in that The placement component consists of a simple installation block, a direction adjustment block, a silicone rubber bag and foam glue. The simple installation block is placed in the adjustment transmission block through a simple installation slot. The middle position of the bottom end of the direction adjustment block is fixedly connected to the top surface of the simple installation block. The silicone rubber bag is fixedly placed on the direction adjustment block, and the inside of the silicone rubber bag is filled with foam glue.

4. The multi-degree-of-freedom external human body fixation frame according to claim 1, characterized in that The correction component consists of an arc-shaped adaptive block, an electric push rod and a neck pillow. One end of the electric push rod is fixedly connected to the body support plate, and the other end of the electric push rod is fixedly connected to the bottom surface of the arc-shaped adaptive block. The two electric push rods are respectively arranged near the two ends of the arc-shaped adaptive block. The neck pillow cover is placed on the arc-shaped adaptive block and fixedly connected to the body support plate. A sealed space is formed between the neck pillow and the body support plate, and the arc-shaped adaptive block and the electric push rod are placed in the neck pillow.

5. The multi-degree-of-freedom external human body fixation frame according to claim 2, characterized in that The distances between the arc-shaped rack and the two rotation axes are the same.

6. The multi-degree-of-freedom external human body fixation frame according to claim 2, characterized in that The two rotating shafts are arranged equidistantly along the circumference of the adjusting transmission block.

7. The multi-degree-of-freedom external human body fixation frame according to claim 2, characterized in that The width of the simple installation groove gradually decreases from the top end to the bottom end.

8. The multi-degree-of-freedom external human body fixation frame according to claim 2, characterized in that The regulating transmission block is in a cylindrical structure, and its diameter increases and then decreases in an arc shape from the top end to the bottom end.

9. The multi-degree-of-freedom external human body fixation frame according to claim 3, characterized in that A fast curing agent is added into the foaming adhesive.

10. The multi-degree-of-freedom external human body fixation frame according to claim 4, characterized in that The arc-shaped adaptable block is in a long strip structure, and the width of the arc-shaped adaptable block gradually increases in an arc shape from the top to the bottom.

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