Fixing foot pad for fixing cervical cancer radiotherapy body position

Abstract

The utility model relates to the field of auxiliary accessories for cervical cancer radiotherapy. The utility model discloses a fixing foot pad for fixing the body position in cervical cancer radiotherapy, which comprises a bottom of a cuboid structure, the length direction of the bottom is defined as the left-right direction, the left end part and the right end part of the top surface of the bottom are respectively provided with a left protective wing part and a right protective wing part which extend upwards, and the middle part of the top surface of the bottom is provided with a baffle part which extends upwards. The left / right protective wing part and the partition part are arranged at intervals to form two placement grooves which are arranged at intervals in the left-right direction, the placement grooves are used for placing shank parts, close to ankles, of a patient, and the partition part is higher than the left / right protective wing part. According to the utility model, the body position fixing cost of a patient can be reduced; for a cervical cancer patient, as a treatment center is marked on the skin, the skin cannot be extruded and deformed, the body position repeatability is good, the radiotherapy target region accuracy is high, and radiation injury is reduced; the use is fast and simple, the positioning preparation time of the patient is reduced, and the use efficiency of the radiotherapy accelerator is improved.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary accessories for cervical cancer radiotherapy, and specifically relates to a fixed foot pad used for fixing the body position of cervical cancer radiotherapy. Background Art

[0002] Cervical cancer is the second most common malignant tumor among women worldwide after breast cancer, and is one of the most common malignant tumors among women in developing countries. With the development of treatment machines and digital technology, as well as the application of computer technology and imaging technology in radiotherapy, radiotherapy technology has made great progress. At present, the concept of precision radiotherapy (PT), which focuses on precise positioning, precise planning, and precise treatment, has become the mainstream. Precise conventional intensity modulated radiation therapy (IMRT) and rotational volumetric intensity modulated radiation therapy (VMAT) allow cervical tumors to receive more precise irradiation, better protect normal pelvic tissues, and significantly reduce adverse reactions compared to three-dimensional conformal radiotherapy, and may improve the local control rate of tumors and the survival rate of patients.

[0003] At present, under the premise of the widespread application of VMAT technology, the advantages of using CBCT (cone-beam computed tomography, cone beam CT) for IGRT (image guide radiotherapy) treatment for cervical cancer patients are obvious, mainly manifested in shortened treatment time, reduced patient displacement during treatment, improved target uniformity and conformity, and better protection of endangered organs such as bladder, rectum and small intestine. In this treatment method, vacuum bags are often used to fix the patient's position, which has the following disadvantages: 1. The cost of vacuum bags is high, which increases the cost of fixing the patient's position; 2. It is more troublesome to use, which increases the patient's positioning preparation time and reduces the efficiency of the radiotherapy accelerator; 3. For cervical cancer patients, since the treatment center is marked on the skin, the use of vacuum bags will squeeze the skin and deform it, resulting in poor position repeatability, low accuracy of the radiotherapy target area, and increased radiation damage. Summary of the invention

[0004] The utility model aims to provide a fixed foot pad for fixing the body position during radiotherapy of cervical cancer to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fixed foot pad for fixing the body position during radiotherapy for cervical cancer, comprising a bottom of a rectangular structure, wherein the length direction of the bottom is defined as the left-right direction, and the left and right end portions of the top surface of the bottom are respectively provided with a left wing portion and a right wing portion extending upward, and the middle portion of the top surface of the bottom is provided with a barrier portion extending upward, and the left wing portion and the right wing portion are respectively spaced apart from the barrier portion to form two placement grooves spaced apart along the left-right direction for placing the patient's calf portion close to the ankle, and the height of the barrier portion is higher than the height of the wing portion.

[0006] Furthermore, the bottom, the left wing portion, the right wing portion and the barrier portion are an integrated structure.

[0007] Furthermore, the left side wall of the left wing portion is flush with the left side wall of the bottom, the right side wall of the right wing portion is flush with the right side wall of the bottom, and the front and rear side walls of the left wing portion, the right wing portion and the barrier portion are respectively flush with the front and rear side walls of the bottom.

[0008] Furthermore, the bottom, the left wing portion, the right wing portion and the barrier portion are made of flame-retardant heat-insulating foam.

[0009] Furthermore, the width of the bottom along the front-to-back direction is 8 cm, and the height of the bottom is 4 cm.

[0010] Furthermore, the dimension of the barrier portion along the left-right direction is 4 cm, and the dimension from the top surface to the bottom surface of the barrier portion is 17 cm.

[0011] Furthermore, the dimensions of the left wing portion and the right wing portion in the left-right direction are both 4 cm, and the dimensions of the top surface to the bottom surface of the left wing portion and the right wing portion are both 8 cm.

[0012] Furthermore, the distances between the left wing portion, the right wing portion and the barrier portion are both 9 cm.

[0013] Furthermore, the front and rear side surfaces and the top surface of the baffle portion are marked with a black central axis.

[0014] Furthermore, the top surface of the barrier portion is an arc-shaped surface.

[0015] Beneficial technical effects of the utility model:

[0016] 1. The utility model has low cost and reduces the cost of fixing the patient's position.

[0017] 2. For patients with cervical cancer, since the treatment center is marked on the skin, the use of the utility model does not cause the problem of squeezing and deforming the skin, the body position repeatability is good, the radiotherapy target area is highly accurate, and radiation damage is reduced.

[0018] 3. It is quick and easy to use, reducing the time for patient positioning and preparation, improving the efficiency of the radiotherapy accelerator, allowing more patients to be treated every day and improving benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0021] Figure 2 It is a structural diagram of another perspective of a specific embodiment of the utility model;

[0022] Figure 3 This is a structural diagram from another perspective of a specific embodiment of the utility model;

[0023] Figure 4 This is a structural diagram from another perspective of a specific embodiment of the utility model;

[0024] Figure 5 This is a usage status diagram of a specific embodiment of the utility model. DETAILED DESCRIPTION

[0025] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0027] like Figure 1-5 As shown, a fixed foot pad 100 for fixing the position of a cervical cancer radiotherapy patient comprises a bottom 1 of a rectangular parallelepiped structure, wherein the length direction of the bottom 1 is defined as the left-right direction (eg Figure 2As shown in the figure, the left and right ends of the top surface of the bottom 1 are respectively provided with a left wing portion 2 and a right wing portion 3 extending upward, and the middle portion of the top surface of the bottom 1 is provided with a baffle portion 4 extending upward, and the left wing portion 2 and the right wing portion 3 are respectively spaced apart from the baffle portion 4 to form two placement grooves spaced apart along the left and right directions, namely a left placement groove 51 and a right placement groove 52, which are used to respectively place the left and right calf portions of the patient close to the ankles, and the height of the baffle portion 4 is higher than that of the left wing portion 2 and the right wing portion 3.

[0028] In this specific embodiment, the bottom 1, the left wing portion 2, the right wing portion 3 and the barrier portion 4 are preferably an integrated structure with a simple structure, good stability, and easy processing, but it is not limited thereto.

[0029] Furthermore, in this embodiment, the left side wall of the left wing portion 2 is flush with the left side wall of the bottom 1, the right side wall of the right wing portion 3 is flush with the right side wall of the bottom 1, and the front and rear side walls of the left wing portion 2, the right wing portion 3 and the partition portion 4 are respectively flush with the front and rear side walls of the bottom 1, so that the overall structure is simpler, more compact and more beautiful.

[0030] Preferably, in this specific embodiment, the bottom 1, the left wing portion 2, the right wing portion 3 and the baffle portion 4 are made of flame-retardant and thermal insulation foam, so that the bottom surface of the bottom 1 and the treatment bed have greater friction and are not easy to slide; they have a certain degree of softness and thermal insulation, and the skin feels comfortable and not cold; the whole is light and has relatively good strength and does not deform, and can be used for a long time, but it is not limited to this. In some embodiments, the bottom 1, the left wing portion 2, the right wing portion 3 and the baffle portion 4 can also be made of other materials.

[0031] In this specific embodiment, the width T1 of the bottom 1 along the front-to-back direction is preferably 8 cm, which is just suitable for clamping and fixing the female ankle. 8 cm from the ankle is suitable for reaching the edge of the tissue muscle, and the fixing effect is good; the height H1 of the bottom is preferably 4 cm, which is suitable for fixing the ankle while leaving the heel off the treatment bed surface, so that the legs and pelvis form an integral connection part, which has good stability and takes into account comfort, so that the patient can cooperate with the treatment for a long time without moving. The length L1 of the bottom 1 along the left-right direction is 30 cm, and the structure is reasonable and compact, but it is not limited to this.

[0032] In this specific embodiment, the dimension L2 of the barrier 4 along the left-right direction is preferably 4 cm, which ensures that the two ankle joints are separated while making the overall structure more compact, with less consumables and lower costs; the dimension H2 from the top surface to the bottom surface of the barrier 4 is preferably 17 cm, which is just enough to be calibrated by the positioning laser in the direction of the head and feet, and is not blocked by the human body, and is more suitable for female ergonomics and convenient for lifting and placing the feet. However, this is not limited to this. In some embodiments, the dimensions L2 and H2 of the barrier 4 can also be other values.

[0033] Preferably, in the present embodiment, the dimension L3 of the left wing portion 2 and the right wing portion 3 along the left-right direction is 4 cm, the dimension H3 from the top surface of the left wing portion 2 and the right wing portion 3 to the bottom surface of the bottom 1 is 8 cm, and the spacing L4 between the left wing portion 2 and the right wing portion 3 and the barrier portion is 9 cm, which is just the right size to fit the ankles of women of all ages for stable placement, and is suitable for weak patients of all physical conditions after chemotherapy to use their core muscles to lift their ankles and place them in the left placement groove 51 and the right placement groove 51 when they lie flat.

[0034] Furthermore, in this embodiment, the front and rear side surfaces and the top surface of the baffle 4 are marked with a black central axis 41, so that when in use, the fixed foot pad 100 is placed on the treatment bed of the carbon radiotherapy accelerator, which is consistent with the treatment center positioning of the radiotherapy accelerator, thereby improving the treatment effect and being more convenient to use.

[0035] Preferably, in this specific embodiment, the top surface of the baffle portion 4 is an arc-shaped surface, which is smoother and more comfortable to use.

[0036] When image-guided radiation therapy is performed, Figure 5 As shown, the patient 200 lies flat on the treatment bed 300 of the carbon radiotherapy accelerator, and the fixed foot pad 100 is placed on the treatment bed 300 corresponding to the ankle of the patient 200, and then the left and right calf parts 201 of the patient 200 close to the ankle are respectively placed in the left placement groove 51 and the right placement groove 52, that is, the body position of the patient 200 is fixed, the skin will not be squeezed and deformed, the body position repeatability is good, the radiotherapy target area is highly accurate, and radiation damage is reduced; it is quick and easy to use, reduces the patient's positioning preparation time, improves the use efficiency of the radiotherapy accelerator, can treat more patients every day, and improves benefits.

[0037] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A fixed foot pad for fixing the body position during radiotherapy for cervical cancer, characterized by: The invention comprises a bottom of a rectangular structure, wherein the length direction of the bottom is defined as the left-right direction, the left and right end portions of the top surface of the bottom are respectively provided with a left wing portion and a right wing portion extending upward, the middle portion of the top surface of the bottom is provided with a barrier portion extending upward, the left wing portion and the right wing portion are respectively spaced apart from the barrier portion to form two placement grooves spaced apart along the left-right direction for placing the patient's calf portion close to the ankle, and the height of the barrier portion is higher than the height of the left wing portion and the right wing portion.

2. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 1, characterized in that: The bottom, the left wing portion, the right wing portion and the barrier portion are an integrated structure.

3. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 2, characterized in that: The left side wall of the left wing part is flush with the left side wall of the bottom, the right side wall of the right wing part is flush with the right side wall of the bottom, and the front and rear side walls of the left wing part, the right wing part and the barrier part are respectively flush with the front and rear side walls of the bottom.

4. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 2 or 3, characterized in that: The bottom, the left wing portion, the right wing portion and the barrier portion are made of flame-retardant heat-insulating foam.

5. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 1, characterized in that: The width of the bottom along the front-to-back direction is 8 cm, and the height of the bottom is 4 cm.

6. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 5, characterized in that: The dimension of the barrier portion along the left-right direction is 4 cm, and the dimension from the top surface to the bottom surface of the barrier portion is 17 cm.

7. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 5, characterized in that: The dimensions of the left and right wing parts in the left-right direction are both 4 cm, and the dimensions of the left and right wing parts from the top surface to the bottom surface are both 8 cm.

8. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 6 or 7, characterized in that: The distances between the left wing portion, the right wing portion and the barrier portion are both 9 cm.

9. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 1, characterized in that: The front and rear side surfaces and the top surface of the baffle portion are marked with a black center axis.

10. The fixed foot pad for fixing the body position for cervical cancer radiotherapy according to claim 1, characterized in that: The top surface of the blocking portion is an arc-shaped surface.

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