Breast cancer patient radiotherapy tissue equivalent filler fixing device

Abstract

The invention discloses a breast cancer patient radiotherapy tissue equivalent filler fixing device, which comprises a filling assembly, and the filling assembly comprises a fixing frame. The fixing assembly comprises a supporting frame, a partition plate, a first sliding groove, a top column, an air bag, a movable plate, a screw rod, a rotary knob and a rotary disc, the supporting frame is fixedly connected to the upper end of the fixing frame, the partition plate is fixedly connected to the center of the interior of the supporting frame, and the first sliding groove is formed in the partition plate. By arranging a fixing assembly and rotating a rotary knob, the rotary knob drives a screw rod to rotate, the screw rod is driven by a threaded structure to move downwards, the screw rod drives a movable plate to move downwards through a rotary disc to extrude an air bag downwards, the air bag is extruded to push a jacking column downwards, and the jacking column jacks an equivalent filler downwards; therefore, the equivalent filler can be always attached to the body contour, no gap exists between the equivalent filler and the skin, and the equivalent filling effect can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for fixing radiotherapy tissue equivalent fillers for breast cancer patients. Background Art

[0002] Breast cancer is a common malignancy in women, and radiotherapy is a key component of comprehensive treatment. During radiotherapy, tissue-equivalent fillers are used to increase the skin surface dose. These fillers are quadrilateral and typically consist of a material with a density similar to human tissue.

[0003] When using existing equivalent fillers, due to the irregular shape of the breast and the large differences between different patients, existing fixing devices make it difficult to fit the equivalent filler to the body contour, resulting in gaps between the filler and the skin, affecting the equivalent effect and failing to accurately simulate the tissue's absorption and scattering of radiation. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for fixing tissue equivalent fillers for radiotherapy of breast cancer patients, so as to solve the problem raised in the above background technology that when using existing equivalent fillers, due to the irregular shape of the breast and large differences between different patients, the existing fixing device is difficult to fit the equivalent filler to the body contour, resulting in gaps between the filler and the skin, affecting the equivalent effect, and unable to accurately simulate the absorption and scattering of radiation by the tissue.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a device for fixing a tissue equivalent filler for radiotherapy of breast cancer patients, comprising:

[0007] A filling assembly, the filling assembly comprising a fixing frame;

[0008] A fixing assembly, the fixing assembly includes a support frame, a partition, a first slide groove, a top column, an airbag, a movable plate, a screw, a knob and a turntable, the support frame is fixedly connected to the upper end position of the fixed frame, the partition is fixedly connected to the central position inside the support frame, the first slide groove is opened in the internal position of the partition, the top column is slidably connected to the internal position of the first slide groove, the airbag is fixedly connected to the upper end position inside the support frame, the movable plate is fixedly connected to the top position inside the support frame, the screw is threadedly connected to the central position of the top of the support frame, the knob is fixedly connected to the top position of the screw, and the turntable is fixedly connected to the bottom end position of the screw.

[0009] Furthermore, the filling assembly also includes an equivalent filler and Velcro, the fixing frame is fixedly connected to positions around the equivalent filler, and the Velcro is fixedly connected to positions on both sides of the fixing frame.

[0010] Furthermore, the bottom end of the top column contacts the top end of the equivalent filler, and the top end of the top column contacts the bottom end of the airbag.

[0011] Furthermore, the movable plate is slidably connected to the inner upper end of the support frame, and the turntable is rotatably connected to the inner position of the upper end of the movable plate.

[0012] Furthermore, a threaded structure is provided inside the top end of the support frame and is opened relative to the screw rod, and the knob is located above the support frame.

[0013] Furthermore, it also includes a limiting component, which includes a second slide groove, a support rod, a top plate, a bottom plate and a telescopic spring. The second slide groove is opened on both sides of the fixed frame, the support rod is slidably connected to the internal position of the second slide groove, the top plate is fixedly connected to the top position of the support rod, the bottom plate is fixedly connected to the bottom position of the support rod, and the telescopic spring is fixedly connected to the bottom position of the fixed frame.

[0014] Furthermore, the bottom end of the telescopic spring is fixedly connected to the outer side of the upper end of the bottom plate, and the telescopic spring surrounds the outer surface of the lower end of the support rod.

[0015] Furthermore, the bottom end of the bottom plate is located below the fixed frame, and the bottom plate is a skin-friendly plate.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. The present invention sets a fixing component, and by turning the knob, the knob drives the screw to rotate. The screw moves downward under the drive of the threaded structure, so that the screw drives the movable plate downward through the turntable to squeeze the airbag downward. The squeezed airbag pushes the top column downward, so that the top column pushes the equivalent filler downward, so that the equivalent filler can always fit the body contour, and there will be no gap between the equivalent filler and the skin, which can ensure the effect of equivalent filling.

[0018] 2. Based on the first beneficial effect, by setting a limit component, when the Velcro is used to fix the fixed frame and the equivalent filler on the surface of the patient's body, the bottom plate first contacts the body, and as the Velcro fixes the fixed frame on the outer surface of the body, the bottom plate moves upward to compress the telescopic spring, causing the telescopic spring to generate elastic force. When the patient breathes and there is a gap between the Velcro and the body, under the action of the elastic force of the telescopic spring, the bottom plate is always in contact with the patient's body, thereby ensuring that the Velcro is always taut on the outer surface of the body, and the fixed frame and the equivalent filler will not move due to the patient's breathing or movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0020] Figure 1 This is the main view of the present invention;

[0021] Figure 2 Fill in the component structure diagram of the present invention;

[0022] Figure 3 This is a structural diagram of the fixing assembly of the present invention;

[0023] Figure 4 This is a structural diagram of the limiting component of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 11. Equivalent filler; 12. Fixed frame; 13. Velcro; 21. Support frame; 22. Partition; 23. First slide; 24. Top column; 25. Airbag; 26. Movable plate; 27. Screw; 28. Knob; 29. ​​Turntable; 31. Second slide; 32. Support rod; 33. Top plate; 34. Bottom plate; 35. Telescopic spring. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views illustrating device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0029] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] See also Figure 1-3 As shown, this embodiment is a device for fixing a tissue equivalent filler for radiotherapy of breast cancer patients, comprising:

[0032] A filling component, the filling component includes a fixing frame 12;

[0033] The fixing assembly includes a support frame 21, a partition 22, a first slide 23, a top column 24, an airbag 25, a movable plate 26, a screw 27, a knob 28 and a turntable 29. The support frame 21 is fixedly connected to the upper end position of the fixed frame 12, the partition 22 is fixedly connected to the central position inside the support frame 21, the first slide 23 is opened in the inner position of the partition 22, the top column 24 is slidably connected to the inner position of the first slide 23, the airbag 25 is fixedly connected to the upper end position inside the support frame 21, the movable plate 26 is fixedly connected to the top position inside the support frame 21, the screw 27 is threadedly connected to the central position of the top of the support frame 21, the knob 28 is fixedly connected to the top position of the screw 27, and the turntable 29 is fixedly connected to the bottom position of the screw 27;

[0034] The support frame 21 is used to support the partition 22, the partition 22 is used to guide the top column 24, the top column 24 is used to push the equivalent filler 11 downward, the airbag 25 is used to push the top column 24 to move downward, the movable plate 26 is used to squeeze the airbag 25, the screw 27 is used to support the knob 28 and the turntable 29, the knob 28 is used to drive the screw 27 to rotate, and the turntable 29 is used to drive the movable plate 26 to move.

[0035] The filling assembly further includes an equivalent filler 11 and a Velcro 13. The fixing frame 12 is fixedly connected to the four sides of the equivalent filler 11, and the Velcro 13 is fixedly connected to the two sides of the fixing frame 12.

[0036] The equivalent filler 11 is used to fill the radiotherapy position of the patient, the fixing frame 12 is used to support the equivalent filler 11, and the Velcro 13 is used to fix the fixing frame 12 and the equivalent filler 11 on the patient's body.

[0037] The bottom end of the top column 24 contacts the top end of the equivalent filler 11 , and the top end of the top column 24 contacts the bottom end of the air bag 25 ;

[0038] When the airbag 25 is squeezed, the airbag 25 expands downward and applies a downward thrust to the top column 24 .

[0039] The movable plate 26 is slidably connected to the upper end of the inner portion of the support frame 21, and the turntable 29 is rotatably connected to the inner position of the upper end of the movable plate 26;

[0040] The movable plate 26 can slide inside the support frame 21 . When the movable plate 26 slides downward, the movable plate 26 can press the airbag 25 downward.

[0041] The top of the support frame 21 has a threaded structure relative to the screw 27, and the knob 28 is located above the support frame 21.

[0042] When the knob 28 is rotated, the knob 28 drives the screw rod 27 to rotate inside the support frame 21, so that the screw rod 27 moves downward under the drive of the thread structure.

[0043] In actual use, all parts are made of non-metallic materials that will not affect the results of radiotherapy. For example, the screw 27, knob 28 and telescopic spring 35 can be made of PE (polyethylene) or PVC (polyvinyl chloride) to prevent them from affecting the human body during radiotherapy. Other parts are also made of plastic or other materials that will not affect radiotherapy.

[0044] Working principle: When the equivalent filler 11 needs to fit the body contour, the knob 28 is turned, and the rotation of the knob 28 drives the screw 27 to rotate, and the rotation of the screw 27 drives the turntable 29 to rotate inside the movable plate 26, and the rotation of the screw 27 is driven by the threaded structure to move downward, so that the screw 27 drives the movable plate 26 to move downward by rotation, and the downward movement of the movable plate 26 squeezes the airbag 25 downward, so that the airbag 25 applies a downward thrust to the top column 24, and the downward movement of the top column 24 pushes the equivalent filler 11 downward. The patient's body has the same resistance to the equivalent filler 11 and the top column 24, and the airbag 25 applies the same elastic force to the top column 24, so that the top column 24 pushes the equivalent filler 11 downward until it fits the body contour.

[0045] Example 2

[0046] See also Figure 4 As shown, this embodiment is based on the above embodiment and also includes:

[0047] The limiting assembly includes a second slide 31, a support rod 32, a top plate 33, a bottom plate 34 and a telescopic spring 35. The second slide 31 is opened on both sides of the fixed frame 12, the support rod 32 is slidably connected to the inner position of the second slide 31, the top plate 33 is fixedly connected to the top position of the support rod 32, the bottom plate 34 is fixedly connected to the bottom end position of the support rod 32, and the telescopic spring 35 is fixedly connected to the bottom end position of the fixed frame 12;

[0048] The second sliding groove 31 is used to guide the support rod 32, the support rod 32 is used to support the top plate 33 and the bottom plate 34, the bottom plate 34 is used to support the telescopic spring 35, and the telescopic spring 35 is used to reset the bottom plate 34.

[0049] The bottom end of the telescopic spring 35 is fixedly connected to the outer side of the upper end of the bottom plate 34, and the telescopic spring 35 surrounds the outer surface of the lower end of the support rod 32;

[0050] When the bottom plate 34 moves upward, the bottom plate 34 can drive the telescopic spring 35 to compress and generate elastic force.

[0051] The bottom end of the bottom plate 34 is located below the fixed frame 12, and the bottom plate 34 is a skin-friendly plate;

[0052] Working principle: When the Velcro 13 is used to fix the fixed frame 12 and the equivalent filler 11 on the surface of the patient's body, the bottom plate 34 first contacts the body, and as the Velcro 13 fixes the fixed frame 12 on the outer surface of the body, the bottom plate 34 moves upward to drive the telescopic spring 35 to compress, causing the telescopic spring 35 to generate elastic force. When the patient breathes and there is a gap between the Velcro 13 and the body, under the influence of the elastic force of the telescopic spring 35, the bottom plate 34 is always in contact with the patient's body, thereby ensuring that the Velcro 13 is always taut on the outer surface of the body, and the fixed frame 12 and the equivalent filler 11 will not move due to the patient's breathing or movement.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tissue equivalent filler fixation device for breast cancer patients undergoing radiotherapy, characterized in that: include: A filling assembly, the filling assembly comprising a fixing frame (12); A fixing assembly, the fixing assembly comprises a support frame (21), a partition (22), a first slide groove (23), a top column (24), an air bag (25), a movable plate (26), a screw (27), a knob (28) and a turntable (29), wherein the support frame (21) is fixedly connected to the upper end position of the fixing frame (12), the partition (22) is fixedly connected to the central position inside the support frame (21), the first slide groove (23) is opened at the inner position of the partition (22), the top column (24) is slidably connected to the inner position of the first slide groove (23), the air bag (25) is fixedly connected to the upper end position inside the support frame (21), the movable plate (26) is fixedly connected to the top end position inside the support frame (21), the screw (27) is threadedly connected to the central position of the top end of the support frame (21), the knob (28) is fixedly connected to the top end position of the screw (27), and the turntable (29) is fixedly connected to the bottom end position of the screw (27).

2. The device for fixing breast cancer patient radiotherapy tissue equivalent fillers according to claim 1, characterized in that: The filling assembly further comprises an equivalent filler (11) and a Velcro (13); the fixing frame (12) is fixedly connected to positions around the equivalent filler (11); and the Velcro (13) is fixedly connected to positions on both sides of the fixing frame (12).

3. The device for fixing breast cancer patient radiotherapy tissue equivalent fillers according to claim 1, characterized in that: The bottom end of the top column (24) contacts the top end of the equivalent filler (11), and the top end of the top column (24) contacts the bottom end of the air bag (25).

4. The device for fixing breast cancer patient radiotherapy tissue equivalent fillers according to claim 1, characterized in that: The movable plate (26) is slidably connected to the upper end of the inner portion of the support frame (21), and the turntable (29) is rotationally connected to the inner position of the upper end of the movable plate (26).

5. The device for fixing breast cancer patient radiotherapy tissue equivalent filler according to claim 1, characterized in that: A threaded structure is provided inside the top end of the support frame (21) and is provided relative to the screw rod (27), and the knob (28) is located above the support frame (21).

6. The device for fixing breast cancer patient radiotherapy tissue equivalent filler according to claim 1, characterized in that: The invention also includes a limiting assembly, which includes a second sliding groove (31), a support rod (32), a top plate (33), a bottom plate (34) and a telescopic spring (35). The second sliding groove (31) is opened at positions on both sides of the fixed frame (12), the support rod (32) is slidably connected to the inner position of the second sliding groove (31), the top plate (33) is fixedly connected to the top position of the support rod (32), the bottom plate (34) is fixedly connected to the bottom position of the support rod (32), and the telescopic spring (35) is fixedly connected to the bottom position of the fixed frame (12).

7. The device for fixing breast cancer patient radiotherapy tissue equivalent filler according to claim 6, characterized in that: The bottom end of the telescopic spring (35) is fixedly connected to the outer side of the upper end of the bottom plate (34), and the telescopic spring (35) surrounds the outer surface of the lower end of the support rod (32).

8. The device for fixing breast cancer patient radiotherapy tissue equivalent filler according to claim 6, characterized in that: The bottom end of the bottom plate (34) is located below the fixed frame (12), and the bottom plate (34) is a skin-friendly plate.

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