CN218980273U - Radiotherapy body plate device with rotation error correction function - Google Patents

Abstract

The utility model provides a radiotherapy body plate device with a rotation error correction function, and relates to the technical field of medical appliances. The device includes body board body and corrects module subassembly, and the head end to foot end and from left side to right side interval arrangement of body board body at the back of body board body and body have a plurality of draw-in holes, correct module subassembly and correct the module including a plurality of every single move that are wedge structure and a plurality of module of correcting that roll, and correct the module and roll the inclined surface that corrects the module and be equipped with a plurality of first buckles with draw-in hole assorted at every single move, correct the module subassembly and pass through first buckle and draw-in hole's the detachable back of installing to body board body. The radiotherapy body plate device is simple in structure, convenient to use and high in repeatability, the position of a radiotherapy patient can be adjusted by the pitching correction module, the rolling correction module and the like from three dimensions to six dimensions, the accuracy of clinical treatment is guaranteed, the cure rate of tumors is improved, the radiotherapy body plate device is applicable to tumors at all positions, and clinical popularization is easy.

Description

Radiotherapy body plate device with rotation error correction function

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a radiotherapy body plate device with a rotation error correcting function.

Background

Radiotherapy has entered the precise era as one of three major approaches to tumor treatment, namely precise positioning, precise planning and precise implementation. Wherein the key to accurate treatment is the precise implementation. The radiotherapy has very strict requirements on the position accuracy of the patient (sub-millimeter accuracy), and ensuring the consistency of the position of the patient during each treatment and the design of the original radiotherapy scheme is the basis for successful treatment. About 25-35 times of radiotherapy are needed for a tumor part, so that the positions of patients treated each time are kept consistent, and a great challenge is provided for the positioning level of a radiotherapy doctor. The patient positioning position error includes six dimensional errors, namely 3 translational errors +3 rotational errors. The CBCT (cone beam CT) technique solves this problem to a great extent, and it can acquire CBCT images of the patient before treatment and then match the CT positioning images of the originally designed radiotherapy plan, display translational and rotational errors of the patient, and correct the corresponding errors by the movement of the treatment couch. All radiotherapy accelerator treatment beds with translation errors can be corrected, and rotation errors can be corrected by arranging accelerators of six-dimensional beds, wherein the six-dimensional beds are more expensive than common treatment beds by about 500 ten thousand, and compared with the total price of about 1500 ten thousand of accelerators, 90% of medical units do not arrange the six-dimensional beds in consideration of cost. For this reason, the rotation error of the patient by these medical units can only be completed by adjusting the patient body according to clinical experience by a radiotherapy doctor, and CBCT scanning is performed again after the adjustment is completed until the rotation error reaches the clinically allowable rotation error range (any direction < 3 °) and then treatment is performed. However, the mode is not only low in efficiency, increases the strain time and psychological burden of the patient, reduces the trust degree of the patient to the radiotherapy doctor, weakens the treatment confidence of the patient, and meanwhile, the accuracy and repeatability of moving the patient for each treatment are difficult to ensure. In addition, each CBCT imaging can introduce additional radiation damage to the patient with an increased risk of secondary cancer. If these rotational errors are ignored, the accuracy of the radiation therapy is reduced, the therapeutic effect of the patient is reduced, and Xu Peng et al research has found that 17.84% dose deviation is caused when the rotational errors are greater than 3 ° in cervical cancer radiotherapy.

How to reduce or eliminate the rotation error caused by the tension of muscles, pain of patients or the difference of positioning habits of different doctors in the radiotherapy process becomes the most troublesome problem of the radiotherapy doctors for each treatment. In clinical practice, the inventor finds that the patient has high position repeatability in about 30 subsequent treatments, namely, the translational and rotational errors are always concentrated in fixed directions (because the subsequent treatments are basically the same radiotherapy doctor, the positioning habits are consistent, the patient gradually eliminates tension emotion or pain and gradually relieves), and if the patient with large rotational error (> 3 degrees) and high repeatability carries out CT simulation positioning again, the planning scheme design not only delays the treatment of the patient and delays the disease control, but also increases the additional workload of the radiotherapy doctor and the medical cost of the patient. Most of the prior art needs to reform the existing accelerator treatment bed, and the prior art belongs to improvement of electric mechanical equipment, and has low practical reforming feasibility and high clinical popularization difficulty. Therefore, it is necessary to provide a radiotherapy auxiliary correction device which is simple and easy to implement and has low cost.

Disclosure of Invention

The utility model aims to provide a radiotherapy body plate device with a rotation error correction function, which aims to solve the technical problems that an auxiliary correction device which is large in positioning rotation error and low in cost and is simple and feasible for a radiotherapy patient is lacking in the prior art. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a radiotherapy body plate device with a rotation error correction function, which comprises a body plate body and a correction module assembly, wherein a plurality of clamping holes are arranged on the back surface of the body plate body at intervals from the head end to the foot end of the body plate body and from the left side to the right side, the correction module assembly comprises a plurality of pitching correction modules and a plurality of rolling correction modules which are in wedge-shaped structures, a plurality of first buckles matched with the clamping holes are arranged on the inclined surfaces of the pitching correction modules and the rolling correction modules, and the pitching correction modules and/or the rolling correction modules are detachably mounted on the back surface of the body plate body through the cooperation of the first buckles and the clamping holes.

According to a preferred embodiment, the longitudinal sections of the pitch correction module and the roll correction module are right-angled triangles.

According to a preferred embodiment, the pitch correction modules have a length and a width that are identical, the pitch correction modules each have a different inclination angle, and the inclination angle of the pitch correction modules is 1 ° to 5 °.

According to a preferred embodiment, the length of the roll-correcting module is greater than the width thereof, a plurality of the roll-correcting modules each have a different inclination angle, and the inclination angle of the roll-correcting module is 1 ° to 5 °.

According to a preferred embodiment, the plurality of clamping holes are arranged in a matrix on the back surface of the body plate body, the clamping holes are concave hole structures which are concave in the body plate body,

the first buckle is a columnar structure protruding out of the inclined surface of the pitching correcting module or the rolling correcting module, and the arrangement mode of the first buckle is consistent with the arrangement mode of the clamping holes.

According to a preferred embodiment, the device further comprises an adapting block, a second buckle capable of being clamped into the clamping hole is arranged at the top of the adapting block, and a sucker is arranged at the bottom of the adapting block.

According to a preferred embodiment, the adapter block comprises an upper part and a lower part, wherein the bottom surface of the upper part is provided with a threaded hole, the outer surface of the lower part is provided with an external thread which can be matched with the internal thread of the threaded hole, and the lower part is screwed into or out of the upper part through the matching of the external thread and the internal thread of the threaded hole so as to adjust the height of the adapter block.

According to a preferred embodiment, the upper portion is of conical configuration and the lower portion is of cylindrical configuration.

According to a preferred embodiment, graduation marks are provided on the upper, lower and side edges of the body panel body.

Based on the technical scheme, the radiotherapy body plate device with the rotation error correction function has at least the following technical effects:

the radiotherapy body plate device with the rotation error correction function comprises a body plate body and a correction module assembly, wherein a plurality of clamping holes are arranged at intervals from the head end to the foot end and from the left side to the right side of the body plate body on the back surface of the body plate body, the correction module assembly comprises a plurality of pitching correction modules and a plurality of rolling correction modules which are in wedge-shaped structures, a plurality of first buckles matched with the clamping holes are arranged on the inclined surfaces of the pitching correction modules and the rolling correction modules, and the correction module assembly is detachably mounted on the back surface of the body plate body through the matching of the first buckles and the clamping holes. Therefore, the radiotherapy body plate device of this application simple structure, convenient to use, the repeatability is high, and the accessible every single move corrects the module and rolls the rotation error of correcting the module and correct the every single move direction of rotation and roll direction of rotation of patient, has guaranteed clinical treatment's precision, has improved the cure rate of tumour, all is suitable for all position tumours. Meanwhile, the radiotherapy body plate device does not need electric machinery, so that the medical cost can be greatly reduced, the workload of medical staff is reduced, the medical experience of a patient is improved, the treatment confidence of the patient is enhanced, and the radiotherapy body plate device is easy to clinically popularize.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic rear view of a body plate body of a radiotherapy body plate device with rotational error correction function of the present application;

FIG. 2 is a schematic diagram of the structure of a pitch correction module in a radiotherapy body plate device with rotational error correction function according to the present application;

FIG. 3 is a schematic diagram of a roll correction module in a radiotherapy body plate apparatus with rotational error correction function according to the present application;

FIG. 4 is a schematic cross-sectional view of an adapting block in the radiotherapy body plate device with rotation error correction function according to the present application;

FIG. 5 is a schematic side view of a body plate body in the radiotherapy body plate apparatus with rotational error correction function of the present application;

fig. 6 and 7 are diagrams illustrating application modes of the radiotherapy body plate apparatus with the rotation error correction function of the present application.

In the figure: 1-a body plate body; 3-adaptation blocks; 11-clamping holes; 12-scale; 21-a pitch correction module; 22-a roll correction module; 23-a first buckle; 31-upper part; 32-lower part; 33-a threaded hole; 34-sucking disc; 35-second catch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

The technical scheme of the utility model is described in detail below with reference to the attached drawings.

As shown in fig. 1 to 3, the present utility model provides a radiotherapy body plate device with a rotation error correction function, which comprises a body plate body 1 and a correction module assembly. Wherein, a plurality of clamping holes 11 are arranged at intervals from the head end to the foot end and from the left side to the right side of the body plate body 1 on the back surface of the body plate body 1. The design of the clamping hole 11 is used for being based on different positions of the tumor center of a tumor patient, and the clamping hole and the first buckle of the correction module assembly can be used for mounting the correction module assembly on the back of the body plate body in a buckling mode, so that the radiotherapy rotator position of the patient can be finely adjusted and corrected through the correction module assembly. Preferably, as shown in fig. 2 and 3, the correction module assembly includes a plurality of pitch correction modules 21 and a plurality of roll correction modules 22 in a wedge-shaped configuration, wherein the pitch correction modules 21 are configured to correct the patient's position in the pitch direction and the roll correction modules 22 are configured to correct the patient's position in the roll direction. Preferably, a plurality of first buckles 23 matched with the card holes 11 are provided on the inclined surfaces of the pitch correction module 21 and the roll correction module 22, and the pitch correction module 21 and/or the roll correction module 22 are detachably mounted to the back surface of the body plate body 1 through the cooperation of the first buckles 23 and the card holes 11. The radiotherapy body plate device of this application simple structure, convenient to use, the repeatability is high, and the accessible every single move is corrected the module and is corrected the module with roll and correct the rotation error of patient at every single move direction of rotation and roll direction of rotation, can become the position adjustment of radiotherapy patient by three-dimensional six-dimensional guaranteed clinical treatment's precision, has improved the cure rate of tumour, all is suitable for all position tumours. Meanwhile, the radiotherapy body plate device does not need electric machinery, so that the medical cost can be greatly reduced, the workload of medical staff is reduced, the medical experience of a patient is improved, the treatment confidence of the patient is enhanced, and the radiotherapy body plate device is easy to clinically popularize.

It is further preferred that the longitudinal sections of the pitch correction module 21 and the roll correction module 22 are right triangles. So that the pitch correction module and roll correction module can correct the rotator position of the patient from one side (head end, foot end, left side or right side) of the body panel body.

It is further preferred that the pitch correction module 21 is of uniform length and width. Preferably, the pitch correction module 21 has a length and width of 40cm. The radiotherapy body plate device of this application includes a plurality of every single move correction module that have different inclination respectively. Preferably, the pitch correction module 21 is inclined at an angle of 1 ° to 5 °. Considering that the rotation error in clinic does not exceed 5 ° at maximum, the tilt angle of the pitch correction module 21 is designed as a plurality of different angles of pitch correction modules of 1 to 5 °, for example: the pitch correction modules with proper error angles can be selected to be mounted on the back of the body plate body, wherein the pitch correction modules are respectively 1 degree, 2 degrees, 3 degrees, 4 degrees and 5 degrees.

Preferably, the length of the roll correction module 22 is greater than its width, and the radiotherapy body plate apparatus of the present application includes a plurality of roll correction modules each having a different tilt angle. The roll correction module 22 is tilted at an angle of 1 deg. to 5 deg.. Preferably, the roll correction module 22 is 50cm in length and 25cm in width. Likewise, considering that the rotational error does not exceed 5 ° at maximum in clinic, the tilt angle of roll correction module 22 is designed as a plurality of different angle pitch correction modules of 1-5 °, for example: the rolling correction modules with proper error angles can be selected to be arranged on the back of the body plate body for correction and adjustment, wherein the rolling correction modules are respectively 1 degree, 2 degrees, 3 degrees, 4 degrees and 5 degrees.

Further preferably, as shown in fig. 1, the plurality of clamping holes 11 are arranged in a matrix on the back surface of the body plate body 1, and the clamping holes 11 are concave hole structures concave in the body plate body 1. The body 1 that this application adopted can be current body, and its material is carbon fiber, and the positive structure of body is the same with current body, including headrest, be located the pole of shaking hands of headrest front side, head shoulder membrane fixed orifices, body membrane fixed orifices and knee joint supporting pad etc.. Preferably, the first buckle 23 is a columnar structure protruding out of the inclined surface of the correction module assembly, and the arrangement mode of the first buckle 23 is consistent with that of the clamping holes 11. The pitch correction module and the roll correction module are configured to be mounted to the back side of the body plate body via a first clip.

Further preferably, the radiotherapy body plate device of the present application further comprises an adapting block 3, a second buckle 35 capable of being clamped into the clamping hole 11 is arranged at the top of the adapting block 3, and a sucker 34 is arranged at the bottom of the adapting block 3. The function of the adapter block 3 is: after installing every single move correction module or upset correction module, because the length of correcting the module is limited for the body board body is kept away from the distal end of correcting the module and can appear unsettled, consequently through installing the adaptation piece in unsettled position, with the holistic steadiness of strengthening the body board. When the medical treatment bed surface treatment device is used, the second buckle 35 of the adapting block 3 is clamped into a clamping hole at a proper position, and the sucker at the bottom of the adapting block 3 is in adsorption connection with the treatment bed surface, so that the stability of the treatment bed surface is improved.

It is further preferred that the adapter block 3 comprises an upper part 31 and a lower part 32, wherein the bottom surface of the upper part 31 is provided with a threaded hole 33, the outer surface of the lower part 32 is provided with an external thread which can be matched with the internal thread of the threaded hole 33, and the lower part 32 is screwed into or out of the upper part 31 by the matching of the external thread with the internal thread of the threaded hole 33 so as to adjust the height of the adapter block 3. Therefore, the height of the adapting block can be adjusted based on different thicknesses of the correcting module, so that the adapting block is adapted to the suspension height, and the overall stability of the body plate is improved. Further preferably, the upper portion 31 has a cone structure and the lower portion 32 has a columnar structure.

Further preferably, graduation marks 12 are provided on the upper surface, the lower surface, and the side edges of the body plate body 1. The device is used for accurately indicating the center position of the tumor and correcting the placement position of the module so as to ensure the treatment accuracy.

The application method of the radiotherapy body plate device with the rotation error correction function is exemplified as follows:

1. pitching direction rotation error correction using method

As shown in fig. 6, assuming that the center of the tumor of the patient is located at the back of the body plate body, in fig. 6, when the required correction angle is positive, the pitch correction module 21 with a proper angle is selected to make the thick end face the head direction of the patient, the side a of the pitch correction module 21 far away from the thick end coincides with the scale mark shown by the line a of the body plate body, the pitch correction module is fixed at the back of the body plate body through the first buckle and the clamping hole, and the center line of the pitch correction module is located at the center point of the tumor as far as possible. The adapting block 3 is used for supporting the body plate with the head, the shoulder and other positions suspended in the air so as to increase the stability of the body plate body.

When the required correction angle is negative, the thick end and the side A of the pitching correction module are inverted, namely the thick end faces the foot direction of the patient.

2. Rolling direction rotation error correction using method

As shown in fig. 7, the principle of using the roll correction module and the pitch correction module is similar, and it is assumed that the center of the tumor of the patient is located at the back of the body plate body, and in fig. 7, when the correction angle is required, the roll correction module 22 with a proper angle is selected to place the thick end on the left side of the patient, and the scale shown by the B edge of the roll correction module and the B line of the body plate body is overlapped, and the roll correction module is fixed at the back of the body plate body through the first buckle and the clamping hole, so that the center line of the roll correction module is located at the center point of the tumor as much as possible. The adapting block 3 is utilized to support the body plate with the left side of the patient suspended, so that the stability of the body plate body is improved.

When the required correction angle is negative, the thick end and the B side of the rolling correction module are inverted, namely the thick end is placed on the right side of a patient.

3. Yaw direction rotation error correction method

The rotation correction of the deflection direction is relatively simplest, and can be corrected without an auxiliary correction module, and the correction method comprises the following steps: the treatment bed is manually rotated to an angle which needs to be corrected (the accelerator treatment bed can be supported to be rotated 90 degrees leftwards and rightwards for non-public radiotherapy), new marks are made on the mould, the treatment bed is rotated back to 0 degrees, and then the treatment bed is positioned again according to the lines of the new marks. The subsequent treatment is directly positioned according to the corrected marking line, so that one-time correction is easily realized, and the whole treatment course can be used.

It should be noted that, the three rotational error correction methods of the present application may be used alone, or two rotational error correction methods or three rotational error correction methods may be used, where all the materials of the components of the present application are carbon fiber materials with low atomic numbers, and no artifacts are generated during CBCT and CT scanning, and no influence is generated on the dose accuracy of the radiation.

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. Radiotherapy body board device with rotatory error correction function, a serial communication port, including body board body (1) and correction module subassembly, wherein, body board body (1) the back just from body board body (1) head end to foot end and from left side to right side interval arrangement have a plurality of draw-in holes (11), correction module subassembly is including a plurality of every single move correction module (21) and a plurality of module (22) of rolling that are wedge structure, and every single move correction module (21) with the inclined surface that rolls correction module (22) be equipped with a plurality of first buckles (23) of draw-in hole (11) assorted, correct every single move module (21) and/or roll correction module (22) are through first buckle (23) with the cooperation detachable of draw-in hole (11) is installed to the back of body board body (1).

2. Radiotherapy body board arrangement according to claim 1, characterized in that the longitudinal sections of the pitch correction module (21) and the roll correction module (22) are right triangles.

3. Radiotherapy body board arrangement according to claim 2, characterized in that the pitch correction modules (21) are identical in length and width, the pitch correction modules (21) each have a different tilt angle, and the tilt angle of the pitch correction modules (21) is 1 ° to 5 °.

4. Radiotherapy body plate device according to claim 2, characterized in that the length of the roll correction module (22) is greater than its width, a plurality of the roll correction modules (22) each having a different inclination angle, and the inclination angle of the roll correction modules (22) being 1 ° to 5 °.

5. The radiotherapy body plate device according to claim 1, wherein a plurality of the clamping holes (11) are arranged in a matrix on the back surface of the body plate body (1), and the clamping holes (11) are concave hole structures concave in the body plate body (1),

the first buckles (23) are columnar structures protruding out of the inclined surfaces of the pitching correcting module (21) or the rolling correcting module (22), and the arrangement mode of the first buckles (23) is consistent with that of the clamping holes (11).

6. Radiotherapy body plate device according to claim 1, characterized in that it further comprises an adapting block (3), wherein a second buckle (35) capable of being snapped into the clipping hole (11) is arranged at the top of the adapting block (3), and a suction cup (34) is arranged at the bottom of the adapting block (3).

7. Radiotherapy body plate device according to claim 6, characterized in that the adapter block (3) comprises an upper part (31) and a lower part (32), wherein the bottom surface of the upper part (31) is provided with a threaded hole (33), the outer surface of the lower part (32) is provided with an external thread which can be matched with the internal thread of the threaded hole (33), and the lower part (32) is screwed into or out of the upper part (31) by the external thread matching with the internal thread of the threaded hole (33) to adjust the height of the adapter block (3).

8. Radiotherapy body plate device according to claim 7, characterized in that said upper portion (31) has a conical structure and said lower portion (32) has a cylindrical structure.

9. Radiotherapy body plate device according to claim 1, characterized in that graduation marks (12) are provided on the upper surface edge, the lower surface edge and the side edges of the body plate body (1).

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