Body position fixator for radiotherapy

Abstract

The utility model provides a body position fixator for radiotherapy, and belongs to the technical field of medical radiotherapy equipment. Comprising a body plate, a head and neck frame is arranged on the body plate, a rib edge supporting frame is arranged on one side of the head and neck frame, and the head of the rib edge supporting frame is connected with the head and neck frame through a self-locking adjusting structure; the rib edge supporting frame is embedded in the body plate and partially penetrates through the body plate to protrude out of the top of the body plate. By arranging the rib edge supporting frames, the two sides of the back of a lying patient can be supported, the pressure on the spine when the patient with spine deformity lies flat is relieved, the rib edge supporting frames with the adjustable shape structures can adapt to different back structures of the patient, and the two sets of rib edge supporting frames can be adjusted respectively; the vacuum negative pressure pad can be adapted to a part of patients with body deformity, the application range of the device is effectively expanded, a hollow gap is formed between the two sets of rib edge supporting frames, a large deformation space is provided for the vacuum negative pressure pad, the contact area between the rib edge supporting frames and the body of the patient is small, the thermoplastic film forming effect is not affected, and the fixing and positioning effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical radiotherapy equipment, in particular to a body position fixer for radiotherapy. Background Art

[0002] Tumor radiotherapy is a local treatment method that uses radiation to treat tumors. Commonly used radiation includes α, β, and γ rays produced by radioactive isotopes and X-rays, electron beams, proton beams, and other particle beams produced by various X-ray therapy machines or accelerators. During radiotherapy, in order to ensure the accuracy of the target area and reduce the dose to surrounding normal tissues, the patient needs to be fixed in position. At the same time, the position fixation device can also improve the patient's comfort and the repeatability of the treatment, and reduce the positioning error during the treatment process. The position fixation device runs through the entire radiotherapy process.

[0003] Commonly used body position fixation devices include radiotherapy thermoplastic fixation film, foam base, vacuum negative pressure pad and fixed body frame. In clinical use, two or more fixation devices are usually used in combination, such as thermoplastic film used in combination with foam base or vacuum negative pressure pad. The thermoplastic film fixes the head, shoulders, neck and chest, while the foam base or vacuum negative pressure pad fixes the back, thereby completely determining the patient's position and achieving repeatability of treatment.

[0004] When fixing and positioning the chest and above parts of the patient, the patient is required to cooperate by lying flat on the body board and maintain this position for about fifteen minutes. However, for some patients with body deformities, such as those with spinal curvature or scoliosis, it is difficult to maintain body balance in the flat position, and it will cause greater pressure on the spine. In the actual operation process, soft cushions are required to assist the patient in maintaining body balance. However, the auxiliary soft cushions will affect the vacuum negative pressure pads and the molding of the thermoplastic film, thereby causing inaccurate positioning and affecting the treatment effect. Therefore, the present application provides a body position fixator for radiotherapy to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a body position fixer for radiotherapy to solve the problem that the existing body plate is suitable for patients with deformed body shapes.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A body position fixator for radiotherapy, comprising a body plate, wherein a head and neck frame for supporting the head is provided on the body plate, a rib side support frame is provided on one side of the head and neck frame, the head of the rib side support frame is connected to the head and neck frame by a self-locking adjustment structure, the self-locking adjustment structure is installed on the body plate, the head and neck frame can be rotated relative to the rib side support frame to adjust the angle of the head and neck frame to adapt to different patients; the rib side support frame is embedded in the body plate and partially passes through the body plate and protrudes from the top thereof, the rib side support frame is partially deformable, so that the rib side support frame can be adapted to different patients, and the rib side support frame is a support structure for supporting the back of the human body.

[0008] Optionally, two groups of adjustment grooves are symmetrically provided on the body plate, and a connecting groove is provided on one side of the adjustment grooves close to the head of the body plate.

[0009] Optionally, a first pad is provided at each end of the adjustment groove, and the first pad is fixedly connected to the body plate, wherein a group of first pads close to the head of the body plate is provided with a through hole, and multiple groups of second pads are also provided at the bottom of the body plate, and the second pads have the same structure as the first pads and are fixedly connected to the body plate.

[0010] Optionally, an adjusting screw is provided between the first cushion blocks at both ends of the adjusting groove, and one end of the adjusting screw sequentially passes through two groups of the first cushion blocks and is rotatably connected thereto.

[0011] Optionally, the rib side support frame includes two groups of rib side support plates, the two groups of rib side support plates are fixedly connected by a connecting support seat, the two groups of rib side support plates respectively extend into two corresponding adjustment grooves, the adjustment screw in the adjustment groove passes through both ends of the rib side support plate and is connected thereto, and the adjustment screw is threadedly connected to one end of the rib side support plate.

[0012] Optionally, the cross-section of the rib support plate is an arc-shaped structure and both side edges are provided with inward-buckling flanges, and the rib support plate is an elastic plate.

[0013] Optionally, an adjustment block is fixedly connected to the bottom of one end of the rib support plate, the other end of the rib support plate is in a bent state and the bent portion is called a support plate, an adjustment hole is opened on the side wall of the adjustment block, the adjustment hole is a threaded hole, and a connecting hole is opened on the support plate.

[0014] Optionally, the tail end of the adjusting screw passes through the adjusting hole and the connecting hole in sequence to be rotatably connected to the corresponding first cushion block, and the adjusting screw is threadedly connected to the adjusting block through the adjusting hole.

[0015] Optionally, the head and neck frame includes two groups of symmetrically distributed support side strips, the ends of the two groups of support side strips are respectively rotatably connected to one end of the connecting support seat, and are locked with the body plate through the self-locking adjustment structure, and the outer wall of the support side strip is fixedly connected with an arm support plate, and the cross-section of the arm support plate is an arc-shaped structure and is adapted to the human arm.

[0016] Optionally, a head support plate and a neck support plate are provided in sequence between the two groups of the support side strips, and the head support plate and the neck support plate are both detachably nested and connected with the support side strips.

[0017] Compared with the prior art, the utility model has at least the following beneficial effects:

[0018] In the above scheme, by setting up rib side support frames, both sides of the back of the lying patient can be supported, the pressure on the spine of patients with spinal deformities when lying flat can be reduced, and the body balance can be effectively maintained; the rib side support frames with adjustable shape and structure can adapt to different patient back structures, effectively improving the patient's comfort; the two groups of rib side support frames can be adjusted separately, and can be adapted to some patients with body deformities, effectively improving the application scope of the device; there is a hollow gap between the two groups of rib side support frames, providing space for the vacuum negative pressure pad to produce a large deformation, and the contact area between the rib side support frames and the patient's body is small, which does not affect the thermoplastic film molding effect, and effectively improves the fixation and positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0020] Figure 1 This is a schematic diagram of the stereoscopic structure of a body position fixator for radiotherapy from the first perspective;

[0021] Figure 2 This is a schematic diagram of the stereoscopic structure of a body position fixator for radiotherapy from a second viewing angle;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the rib support frame.

[0023] [Reference Signs]

[0024] 1. Body plate; 2. Rib support frame; 3. Head and neck frame; 4. Adjustment slot; 5. First cushion block; 6. Second cushion block; 7. Adjustment screw; 8. Adjustment block; 9. Abutment plate; 10. Connecting hole; 11. Adjustment hole; 12. Connecting slot; 13. Self-locking adjustment structure; 14. Support side strip; 15. Arm support plate; 16. Head support plate; 17. Neck support plate; 18. Rib support plate; 19. Connecting support seat.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0026] The following is a detailed description of a body position fixator for radiotherapy provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0027] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it should be within the knowledge of technicians in the relevant field to implement such features, structures or characteristics in conjunction with other embodiments.

[0028] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0030] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0031] like Figures 1 to 3 As shown, an embodiment of the utility model provides a body position fixer for radiotherapy, including a body plate 1, a head and neck frame 3 for supporting the head is provided on the body plate 1, a rib side support frame 2 is provided on one side of the head and neck frame 3, the head of the rib side support frame 2 is connected to the head and neck frame 3 by a self-locking adjustment structure 13, the self-locking adjustment structure 13 is installed on the body plate 1, the head and neck frame 3 can be rotated relative to the rib side support frame 2 to adjust the angle of the head and neck frame 3 to adapt to different patients, the rib side support frame 2 is embedded in the body plate 1 and partially passes through the body plate 1 and protrudes from the top thereof, the rib side support frame 2 is partially deformable, so that the rib side support frame 2 can be adapted to different patients, the rib side support frame 2 is a support structure for supporting the back of the human body, and by setting the rib side support frame 2, the patient can be The rib side support frame 2 supports both sides of the patient's back, reduces the pressure on the spine of patients with spinal deformity when lying flat, and effectively maintains the body balance. The shape and structure of the rib side support frame 2 can be adjusted to fit the backs of different patients and adapt to different patients, effectively improving the patient's comfort. The two sides of the rib side support frame 2 can be adjusted separately so that it can adapt to patients with some scoliosis, effectively improving the application scope of the device. The rib side support frame 2 has a roof-shaped structure, and there are hollow gaps between the rib side support frames 2, which can provide deformation space for the vacuum negative pressure bag spread on the rib side support frame 2, further adapting to patients with spinal deformity. At the same time, the contact area between the rib side support frame 2 and the patient's body is small, which does not affect the molding effect of the thermoplastic film, and effectively improves the fixation and positioning effect.

[0032] like Figure 1 and Figure 2As shown, two groups of adjustment grooves 4 are symmetrically provided on the body plate 1, and a connecting groove 12 is provided on the side of the adjustment groove 4 near the head of the body plate 1. First pads 5 are respectively provided at both ends of the adjustment groove 4, and the first pads 5 are fixedly connected to the body plate 1, wherein a group of first pads 5 near the head of the body plate is provided with a through hole, and multiple groups of second pads 6 are distributed at the bottom of the body plate 1, and the second pads 6 have the same structure as the first pads 5 and are fixedly connected to the body plate 1. By setting the first pads 5, the height of the body plate 1 can be increased, so that a certain gap is left between the body plate 1 and the bed board when the body plate 1 is placed on the treatment bed, which is used to cooperate with the rib support frame 2 to achieve the purpose of adjusting the structure of the rib support frame 2. By setting the second pads 6, it can cooperate with the first pads 5 to maintain the overall balance of the body plate 1 and avoid affecting the normal use of the body plate 1. An adjusting screw 7 is provided between the first pads 5 at both ends of the adjustment groove 4, and one end of the adjusting screw 7 passes through the two groups of first pads 5 in sequence and is rotatably connected thereto, and is screwed to one of the groups of first pads 5.

[0033] The rib support frame 2 includes two groups of rib support plates 18, which are fixedly connected by a connecting support seat 19. The two groups of rib support plates 18 extend to the inside of two corresponding adjustment grooves 4 respectively. The adjusting screw 7 in the adjusting groove 4 passes through both ends of the rib support plate 18 and is connected thereto, and the adjusting screw 7 is threadedly connected to one end of the rib support plate 18. The connecting support seat 19 extends to the inside of the connecting groove 12 and is connected to the head and neck frame 3 above the body plate 1.

[0034] like Figure 3 As shown, the cross-section of the rib support plate 18 is an arc-shaped structure and the two sides are respectively provided with inwardly buckled flanges. The rib support plate 18 is an elastic plate. The rib support plate 18 with an arc structure can better fit the patient's body shape while supporting the patient, thereby increasing the patient's comfort. When using it, patients with body deformities can buckle the flanges of the rib support plate 18 on both sides of the patient's back. The flanges have a certain clamping force on the back, making it fit more closely to the patient's body surface. The flanges of the rib support plate 18 can expand outward to a certain extent to accommodate patients with different back widths, thereby increasing the scope of application of the device. When pressure is applied to both ends of the rib support plate 18, the rib support plate 18 deforms and arches. The two sides of the patient's back can be supported. Since the two groups of rib support plates 18 can respectively control the deformation degree and deformation structure, for patients with spinal curvature, the deformation structure of the two groups of rib support plates 18 can be adjusted to be the same. For patients with scoliosis, the two groups of rib support plates 18 can be adjusted to adapt to the patient's body shape on both sides, which effectively increases the application range of the device. An adjustment block 8 is fixedly connected to the bottom of one end of the rib support plate 18, and the other end of the rib support plate 18 is in a bent state and the bent portion is called a butt plate 9. The bending angle range is within 0~180°. An adjustment hole 11 is opened on the side wall of the adjustment block 8, and the adjustment hole 11 is a threaded hole. A connecting hole 10 is opened on the butt plate 9.

[0035] The tail end of the adjusting screw 7 passes through the adjusting hole 11 and the connecting hole 10 in sequence and is rotatably connected to the corresponding first cushion block 5. The adjusting screw 7 is threadedly connected to the adjusting block 8 through the adjusting hole 11. A handle is installed at the head end of the adjusting screw 7, and the handle can be used to conveniently drive the adjusting screw 7 to rotate. When the adjusting screw 7 rotates, it moves relative to the adjusting block 8 through the adjusting hole 11, thereby driving the adjusting block 8 toward the direction of the abutment plate 9, so that the bending angle at the abutment plate 9 gradually decreases, and then the deformation degree of the rib support plate 18 gradually increases, so as to adapt to different patients.

[0036] The head and neck frame 3 includes two groups of symmetrically distributed support side strips 14, the ends of the two groups of support side strips 14 are rotatably connected to one end of the connecting support seat 19, and are locked with the body plate 1 through a self-locking adjustment structure 13. The self-locking adjustment structure 13 includes a latch embedded in the body plate 1, and a plurality of slots are provided inside the body plate. The latch is inserted into the slot and movably connected with the body plate 1. A spring is also provided inside the slot, and the two ends of the spring are respectively abutted against the latch and the inner wall of the slot. The spring pushes the latch to extend out of the slot and insert into the support side strip 14 to cooperate with it, so as to achieve the purpose of locking the support strip 14. By manually pressing the latch, the latch can be withdrawn from the support strip 14 to release its locked state. The outer wall of the support side strip 14 is fixedly connected to an arm support plate 15, and the cross-section of the arm support plate 15 is The arc-shaped structure is adapted to the human arm. By setting the arm support plate 15, when the patient lies flat with his arms around his head, the arm support plate 15 can support the arms to reduce the burden on the arms and facilitate the patient to fix the body position. A head support plate 16 and a neck support plate 17 are arranged between the two groups of support side strips 14 in sequence. The head support plate 16 and the neck support plate 17 are both detachably nested and connected with the support side strips 14. The head support plate 16 and the neck support plate 17 are both arched plates and are adapted to the human head and neck respectively. The head support plate 16 and the neck support plate 17 are detachably connected to the support side strips 14, which is convenient for removing them and replacing them with thermoplastic film to fix and position the patient's head, thereby expanding the scope of application of the device.

[0037] According to the working principle of the utility model, when a patient with a normal body shape uses a fixator for positioning and fixation, the patient can adjust the arch of the rib support plate 18 by rotating the adjusting screw 7 so that the rib support plate 18 can completely enter the adjusting groove 4 and the upper surface of the body plate 1 can be flat. Then, a vacuum negative pressure pad or other body position fixing device can be placed on the body plate 1. The patient then lies flat on it with the head placed on the head and neck frame 3. The angle of the head and neck frame 3 can be adjusted by the self-locking adjustment structure 13 so that the head support plate 16 and the neck support plate 17 can respectively fit the patient's head and neck to support the head.

[0038] If it is used by a patient with a curved spine, before the patient lies flat, the operator can drive the corresponding rib support plate 18 to deform by rotating the two sets of adjusting screws 7 that cooperate with the rib support plates 18. The rotation of the adjusting screws 7 will drive the adjusting block 8 at the end of the rib support plate 18 to gradually approach the head direction of the body plate 1, and the other end of the rib support plate 18 will abut against the inner wall of the adjusting groove 4. The two ends of the rib support plate 18 are compressed and deformed, and the side of the rib support plate 18 away from the head of the body plate 1 gradually forms an arc-shaped slope. First, adjust the rib support plate 18 to be similar to the patient's back shape. With the help of the operator, the patient gradually lies down and approaches the rib support frame 2. In the process of the rib support frame 2 fully supporting the patient, the operator can adjust the structure of the rib support plate 18 again to make it fully fit the patient's back. After the rib support plate 18 supports the patient, the flange of the rib support plate 18 produces an inwardly contracting clamping force on the patient's back, and fits more closely with the patient to prevent the patient from falling off from it due to the slope of the rib support frame 2.

[0039] If used by patients with scoliosis, since the patient's back is twisted to a certain extent and the structures on both sides of the back are deviated, the two sets of adjusting screws 7 can be adjusted separately to make the two sets of rib support plates 18 have different arches and adapt to the body contours on both sides of the patient, thereby further improving the adaptability to the patient, increasing the patient's body balance, and improving the patient's comfort.

[0040] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A body position fixator for radiotherapy, characterized in that: The invention comprises a body plate, wherein a head and neck frame for supporting the head is provided on the body plate, a rib support frame is provided on one side of the head and neck frame, the head of the rib support frame is connected to the head and neck frame through a self-locking adjustment structure, the self-locking adjustment structure is installed on the body plate, and the head and neck frame can be rotated relative to the rib support frame to adjust the angle of the head and neck frame to adapt to different patients; The rib side support frame is embedded in the body plate and partially passes through the body plate and protrudes from the top thereof. The rib side support frame is partially deformable so that the rib side support frame can be adapted to different patients. The rib side support frame is a support structure for supporting the back of the human body.

2. The body position fixator for radiotherapy according to claim 1, characterized in that: The body plate is symmetrically provided with two groups of adjusting grooves, and a connecting groove is provided on one side of the adjusting grooves close to the head of the body plate.

3. The body position fixator for radiotherapy according to claim 2, characterized in that: A first pad is provided at each end of the adjustment groove, and the first pad is fixedly connected to the body plate. A through hole is provided on a group of first pads close to the head of the body plate, and multiple groups of second pads are provided at the bottom of the body plate. The second pads have the same structure as the first pads and are fixedly connected to the body plate.

4. The body position fixator for radiotherapy according to claim 3, characterized in that: An adjusting screw is provided between the first cushion blocks at both ends of the adjusting groove, and one end of the adjusting screw sequentially passes through two groups of the first cushion blocks and is rotatably connected thereto.

5. The body position fixator for radiotherapy according to claim 4, characterized in that: The rib support frame includes two groups of rib support plates, and the two groups of rib support plates are fixedly connected by connecting support seats. The two groups of rib support plates extend into two corresponding adjustment grooves respectively. The adjustment screws in the adjustment grooves pass through both ends of the rib support plates and are connected thereto, and the adjustment screws are threadedly connected to one end of the rib support plates.

6. The body position fixator for radiotherapy according to claim 5, characterized in that: The cross section of the rib support plate is an arc-shaped structure and both side edges are respectively provided with inwardly buckled flanges. The rib support plate is an elastic plate.

7. The body position fixator for radiotherapy according to claim 6, characterized in that: An adjustment block is fixedly connected to the bottom of one end of the rib support plate, the other end of the rib support plate is in a bent state and the bent portion is called a butt plate, an adjustment hole is opened on the side wall of the adjustment block, the adjustment hole is a threaded hole, and a connecting hole is opened on the butt plate.

8. The body position fixator for radiotherapy according to claim 7, characterized in that: The tail end of the adjusting screw passes through the adjusting hole and the connecting hole in sequence and is rotatably connected to the corresponding first cushion block, and the adjusting screw is threadedly connected to the adjusting block through the adjusting hole.

9. The body position fixer for radiotherapy according to claim 5, characterized in that: The head and neck frame includes two groups of symmetrically distributed support side strips, the ends of the two groups of support side strips are respectively rotatably connected to one end of the connecting support seat, and are locked with the body plate through the self-locking adjustment structure. The outer wall of the support side strip is fixedly connected with an arm support plate, and the cross-section of the arm support plate is an arc-shaped structure and is adapted to the human arm.

10. The body position fixator for radiotherapy according to claim 9, characterized in that: A head support plate and a neck support plate are arranged in sequence between the two groups of support side strips, and the head support plate and the neck support plate are both detachably nested and connected with the support side strips.

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