Head and neck tumor radiotherapy protection device

Abstract

The invention relates to the technical field of medical equipment, in particular to a head and neck tumor radiotherapy protection device which comprises a mask and a bottom plate, the mask is fixedly connected to the upper portion of the top face of the bottom plate, a supporting frame is arranged on the side edge of the mask, a plurality of clamping heads are arranged at the bottom of the supporting frame, and a plurality of fixing assemblies used for fixing the supporting frame to the top face of the bottom plate are arranged on the top face of the bottom plate; a headrest located below the supporting frame is arranged on the top face of the bottom plate. The fixing device is simple in structure and easy to operate, by arranging the supporting frame and the fixing assembly, when the mask is fixed to the bottom plate, only one medical worker is needed for independently completing operation, cooperative operation of multiple workers is not needed, and therefore the fixing steps are optimized, and the fixing efficiency of the head and the neck of a patient before radiotherapy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a head and neck tumor radiotherapy protection device. BACKGROUND

[0002] Tumor radiotherapy is a common method of treating cancer using high-energy radiation (such as X-rays, gamma rays or particle radiation), the main purpose of which is to directly kill cancer cells or inhibit their growth while protecting surrounding healthy tissues as much as possible. During head and neck tumor radiotherapy, the radiotherapy area is from below the eyes to above the clavicle of the human body. Since important organs such as the spinal cord, brain stem, optic nerve, and parotid gland are distributed around the head and neck of the human body, the control accuracy of the radiation dose is usually in the order of millimeters. If the patient's head and neck are not strictly fixed during radiotherapy, even a slight deviation in the position of the patient's head and neck can result in insufficient irradiation of the tumor, reducing the treatment effect, and even possibly causing healthy tissues to receive excessive radiation, resulting in serious side effects. Therefore, the patient's head and neck needs to be strictly fixed during radiotherapy to avoid body position movement.

[0003] A head and neck tumor radiotherapy protection device named Orfit ALO is currently available, which is mainly composed of a mask made of thermoplastic material with three fixation points, buckles for fixing the mask, a bottom plate, and a headrest. When in use, the patient lies on the bottom plate with the head resting on the headrest, and the medical staff submerges the mask in hot water for a period of time to soften the mask and make it plastic, then tightens the softened mask and covers it on the patient's face, and fixes the mask to the bottom plate one by one through the buckles, thereby realizing the constraint and positioning of the head and neck. However, this device has the following shortcomings: since it only relies on three fixation points, the mask needs to be locked with the buckles one by one during the fixing process, which usually requires two to three medical staff to operate cooperatively, and the operation steps are cumbersome and inefficient.

[0004] Therefore, it is necessary to provide a head and neck tumor radiotherapy protection device to solve the above problems. SUMMARY

[0005] To solve the above problems, the present application provides a head and neck tumor radiotherapy protection device, which is characterized by the following technical solutions: a support frame is arranged on the side edge of the mask, and a quick locking fixing assembly is arranged between the support frame and the bottom plate. When fixing the mask to the bottom plate, only one medical staff is needed to complete the operation independently, without the need for multiple personnel to operate cooperatively, thereby optimizing the fixing steps and improving the efficiency of fixing the patient's head and neck before radiotherapy.

[0006] In order to achieve the above object, the technical scheme of the present application is as follows: A head and neck tumor radiotherapy protection device, comprising a mask and a bottom plate, the mask is fixedly connected to the upper part of the top surface of the bottom plate, a support frame is arranged on the side edge of the mask, a plurality of clamping heads are arranged at the bottom of the support frame, a plurality of fixing assemblies for fixing the support frame to the top surface of the bottom plate are arranged on the top surface of the bottom plate; a headrest is arranged below the support frame on the top surface of the bottom plate.

[0007] The technical principle of the above scheme is as follows: in use, the patient lies on the bottom plate and rests his head on the headrest, after adjusting the body position, the medical staff lays the processed mask on the patient's face and presses the support frame downward, so that the support frame is fixed by the corresponding fixing assembly on the bottom plate, and then the mask is fixed to the patient's head and neck.

[0008] The above scheme has the following beneficial effects:

[0009] 1. In this scheme, the support frame is arranged on the side edge of the mask, and the fixing assembly cooperates with the bottom plate to realize quick locking of the mask, so that a single medical staff can complete the fixing operation without the need for multiple people to cooperate, simplifying the operation process and improving the fixing efficiency of the patient's head and neck before radiotherapy.

[0010] 2. In this scheme, the support frame and the bottom plate are connected by the plurality of fixing assemblies, so that the support frame can remain stable and avoid loosening due to vibration or slight movement of the patient during radiotherapy, thereby effectively ensuring the accuracy of the position of the patient's head and neck and improving the treatment effect and safety of radiotherapy.

[0011] 3. In this scheme, the headrest is provided to support the patient's skull, further improving the comfort of fixation, reducing the discomfort of the patient during long-term radiotherapy, and enhancing the stability of the head and neck, thereby reducing the error of radiation caused by body position deviation.

[0012] Further, the fixing assembly comprises a plurality of grooves corresponding to the number of clamping heads and arranged on the top surface of the bottom plate, a support shaft is fixedly connected in each groove, a clamping tenon is rotatably connected to the support shaft, a spring is fixedly connected below the clamping tenon, and the other end of the spring is fixedly connected to the inner wall of the groove; the clamping tenon is connected with the corresponding clamping head by buckling.

[0013] Beneficial effect: by arranging the support shaft and the clamping tenon in the groove and rotating them, the clamping tenon can be deflected and embedded in the clamping head position when the support frame is pressed, forming a stable buckle, and the operation process is simple and fast; at the same time, the elastic reset characteristic of the spring makes the clamping tenon automatically rebound and tightly buckle with the clamping head on the support frame when it is released, ensuring the reliability of the locking.

[0014] Further, a buffer layer is installed on the top surface of the bottom plate.

[0015] Beneficial effects: By adding a buffer layer on the bottom plate, the discomfort of the patient during the lying process due to body position fixation can be effectively reduced, and the overall comfort is improved.

[0016] Further, the side of the mask away from the bottom plate is bonded with a shielding layer.

[0017] Beneficial effects: By bonding the shielding layer on the mask, local radiation shielding of non-treatment areas can be achieved, avoiding the irradiation of irrelevant tissues and organs by the rays, effectively protecting sensitive organs such as the eyes, salivary glands, and thyroid glands of the patient, improving the safety of radiotherapy, and reducing side effects.

[0018] Further, the side of the headrest away from the bottom plate is an arc surface, and a gas bag is bonded on the arc surface.

[0019] Beneficial effects: The adjustability of the gas bag can effectively improve the comfort of the patient during radiotherapy, avoid neck compression or discomfort caused by long-term fixation, and at the same time ensure the stability of the head and neck, and reduce the micro-displacement.

[0020] Further, the top surface of the bottom plate is provided with a first strap.

[0021] Beneficial effects: By setting the first strap on the bottom plate, the shoulder of the patient can be effectively fixed when lying, avoiding displacement of the head and neck due to involuntary action of the shoulder or respiratory traction, thereby ensuring the stability of the head and neck of the patient during radiotherapy and improving the accuracy of irradiation positioning.

[0022] Further, the side of the mask contacting the patient is provided with a non-stick coating.

[0023] Beneficial effects: By adhering the non-stick coating to the contact surface of the mask, the adhesion of the mask to the skin or hair of the patient can be effectively reduced, and the discomfort during disassembly and cleaning can be reduced.

[0024] Further, the support frame is provided with a handle on both sides.

[0025] Beneficial effects: By setting symmetrical handles on the support frame, it is convenient for medical staff to exert force when fixing or disassembling the support frame, and the operation is more convenient and fast.

[0026] Further, the top of the bottom plate is provided with a handle.

[0027] Beneficial effects: This design is convenient for medical staff to deploy and transfer the bottom plate.

[0028] Further, the first strap is fixedly connected with a plurality of second straps, and the second straps are detachably linked with the support frame.

[0029] Beneficial effects: the combination structure of the first binding belt and the second binding belt can simultaneously fix the head and neck and the shoulder of the patient, effectively prevent the upper body of the patient from moving during radiotherapy, and further ensure the stability of the head and neck position.

[0030] Additional aspects and advantages of the present application will be described in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a front view of the head and neck tumor radiotherapy protection device embodiment of the present application.

[0032] Figure 2 It is a front view of the bottom plate of the head and neck tumor radiotherapy protection device embodiment of the present application.

[0033] Figure 3 It is a partial sectional view of the tenon and the head of the head and neck tumor radiotherapy protection device embodiment of the present application.

[0034] Figure 4 It is an axonometric view of the mask of the head and neck tumor radiotherapy protection device embodiment of the present application.

[0035] Figure 5 It is an axonometric view of the headrest of the head and neck tumor radiotherapy protection device embodiment of the present application.

[0036] The reference signs in the drawings of the specification include: 1, mask; 2, support frame; 3, headrest; 4, air bag; 5, bottom plate; 6, handle; 7, handle; 8, first binding belt; 9, buffer layer; 10, notch; 11, spring; 12, support shaft; 13, tenon; 14, head; 15, shielding layer; 16, non-stick coating; 17, second binding belt. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described in detail below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying 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 cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The specific embodiments are described in detail below:

[0041] Embodiment 1:

[0042] A head and neck tumor radiotherapy protection device, combined with Figure 1 , attached Figure 2 and attached Figure 3 It can be seen that it comprises a mask 1 and a bottom plate 5, the top of the bottom plate 5 is provided with a handle 6; the mask 1 is fixedly connected to the upper part of the top surface of the bottom plate 5, the side edge of the mask 1 is provided with a support frame 2, the bottom of the support frame 2 is provided with a plurality of "L" type clamping heads 14, the two sides of the support frame 2 are symmetrically provided with a handle 7; the top surface of the bottom plate 5 is provided with a plurality of fixing assemblies for fixing the support frame 2 on the bottom plate 5, the fixing assemblies all comprise a slot 10 corresponding in number to the clamping heads 14 and located on the top surface of the bottom plate 5, a support shaft 12 is welded in each slot 10, a tenon 13 is rotatably connected to the support shaft 12, the tenon 13 is trapezoidal, a spring 11 is welded to the lower side of the support shaft 12 near the long bottom edge of the tenon 13, the other end of the spring 11 is welded to the inner wall of the slot 10; the tenon 13 is respectively buckled with the corresponding clamping head 14; a headrest 3 is arranged on the bottom plate 5; a first binding belt 8 is arranged on the bottom plate 5, a plurality of second binding belts 17 are riveted on the first binding belt 8, and the second binding belts 17 are detachably connected with the support frame 2.

[0043] The specific implementation process is as follows: in use, first, the bottom plate 5 is horizontally placed under the radiotherapy equipment through the handle 6, then the patient is placed on the bottom plate 5, and the patient's head is naturally rested on the headrest 3, and the body position is adjusted to a position suitable for radiotherapy. Then, the medical staff covers the mask 1 soaked and softened in advance with hot water on the head and neck area of the patient, presses the handle 7 on the support frame 2, so that the mask 1 is in a tension state at this time, continues to press the handle 7, so that the support frame 2 moves downward and the "L" type clamp head 14 enters the corresponding slot 10, the short side of the clamp head 14 moves downward and extrudes the inclined edge of the trapezoidal tenon 13, so that the tenon 13 rotates with the support shaft 12, and then extrudes the spring 11, so that the spring 11 has elastic potential energy, when the short side of the clamp head 14 is completely buckled with the long bottom edge of the trapezoidal tenon 13, the short side of the clamp head 14 no longer extrudes the inclined edge of the trapezoidal tenon 13, and the tenon 13 is automatically buckled to the short side of the corresponding clamp head 14 under the reset action of the spring 11, thereby completing the locking of the clamp head 14, thereby realizing the quick fixing of the support frame 2 and the bottom plate 5, and improving the fixing efficiency of the head and neck of the patient before radiotherapy. Then, the medical staff uses the first binding belt 8 on the bottom plate 5 to fix the shoulder of the patient, and connects the second binding belt 17 with the support frame 2, so as to further limit the relative movement of the head and neck and the shoulder of the patient, and ensure the stability of the overall position of the head, neck and shoulder of the patient. The whole fixing process can be completed by only one medical staff, which is simple and efficient.

[0044] After fixing, the head and neck tumor radiotherapy operation can be started. During radiotherapy, the cooperation of the support frame 2 and the mask 1 can effectively avoid the body position deviation of the patient caused by breathing or slight movement, thereby improving the accuracy and safety of radiotherapy. After treatment, the medical staff presses the short side of the trapezoidal tenon 13 towards the support frame 2, so that the tenon 13 rotates around the support shaft 12, thereby making the long side of the tenon 13 no longer limit the short side of the clamp head 14, thereby unlocking, disconnecting the tenon 13 and the clamp head 14, and unfastening the first binding belt 8 and the second binding belt 17, and lifting the handle 7, so as to conveniently release the fixing and help the patient leave the device.

[0045] The following is a comparative experiment based on example 1 and Orfit ALO head and neck tumor radiotherapy protection device to verify the superiority of the device provided in example 1.

[0046] Purpose of the experiment:

[0047] Compare the performance differences of the traditional Orfit ALO head and neck radiotherapy protection device and the improved head and neck tumor radiotherapy protection device in the following indicators.

[0048] Patient positioning error (accuracy), patient comfort and use efficiency.

[0049] Experimental design:

[0050] Experimental subjects

[0051] Subjects: 30 patients with head and neck tumors (age 25-65 years)

[0052] Randomly divided into two groups:

[0053] Control group: using Orfit ALO head and neck protection device

[0054] Experimental group: using the head and neck protection device provided in Example 1

[0055] Experimental method:

[0056] Positioning accuracy test

[0057] Each patient underwent 3 times of radiotherapy simulation, and the head and neck positioning error (mm) was recorded. CT or Cone-Beam CT was used for three-dimensional scanning.

[0058] Comfort score

[0059] After the patient completed the radiotherapy simulation, a 10-point questionnaire was used to evaluate the comfort of wearing the mask (10 points for the most comfortable).

[0060] Use efficiency

[0061] The time (seconds) required for the medical staff to fix the patient to complete the positioning was measured.

[0062] Table 1 comparison of experimental results data

[0063] Indicator Orfit ALO (control group) Improved device (experimental group) Positioning error (mm) 2.1±0.3 1.6±0.2 Comfort score (10-point scale) 7.8±1.1 8.7±0.9 Positioning time (seconds) 42±3 31±2

[0064] Note: The head and neck protection device provided in Example 1 is slightly better than Orfit ALO in positioning accuracy (error reduction of about 0.5 mm), which meets the clinical requirements of high-precision radiotherapy; the improved device has significantly improved comfort (score increased by about 0.9 points), and the patient's compliance is better; the use efficiency is improved by about 26%, which can reduce the operation time of medical staff and improve the clinical work efficiency.

[0065] Conclusion: The improved head and neck tumor radiotherapy protection device is better than Orfit ALO head and neck protection device in terms of accuracy, comfort and operation efficiency, and is suitable for clinical promotion.

[0066] Example 2:

[0067] The difference from Example 1 is that reference is made to the drawings in Figure 1 With 5 It can be seen that the bottom plate 5 is provided with a buffer layer 9, which is preferably a memory sponge; the side of the headrest 3 away from the bottom plate 5 is an arc surface, and the arc surface is bonded with an air bag 4.

[0068] The specific implementation process is as follows: the buffer layer 9 can provide flexible support for the patient, effectively disperse the body pressure, and avoid local compression discomfort caused by long-term radiotherapy. The patient's head naturally rests on the headrest 3, the arc surface of the headrest 3 is in close contact with the patient's neck and the back of the head contour, and the bonded air bag 4 can be inflated or deflated as needed to adjust the height and angle of the head, so that the patient's head and neck posture is more in line with the requirements of radiotherapy positioning, further improving the fixing effect and the accuracy of radiotherapy.

[0069] Example 3:

[0070] As shown in the accompanying Figure 1 and the accompanying Figure 4 The difference from example 2 is that the mask 1 far away from the bottom plate 5 side is bonded with a shielding layer 15, the material of the shielding layer 15 is preferably bismuth-tungsten composite plate; the side of the mask 1 contacting the patient is provided with a non-stick coating layer 16, the material of the non-stick coating layer 16 is preferably polytetrafluoroethylene.

[0071] The specific implementation process is as follows: the non-stick coating layer 16 on the mask 1 can reduce the adhesion of the mask 1 with the skin, sweat or hair, improve the wearing comfort, and facilitate disassembly and cleaning; the mask 1 bonded with the shielding layer 15 can shield the local rays in the radiotherapy process, and protect the sensitive tissues from unnecessary radiation.

[0072] Obviously, the above examples are only examples for the sake of clarity, and are not limitations on the embodiments. Based on the above description, other different forms of changes or variations can also be made by those of ordinary skill in the art. Here, it is not necessary and impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A head and neck tumor radiotherapy protection device comprising a mask (1) and a base plate (5), characterized in that, The mask (1) is fixedly connected to the top of the bottom plate (5), the side of the mask (1) is provided with a support frame (2), the bottom of the support frame (2) is provided with a plurality of clamping heads (14), the top of the bottom plate (5) is provided with a plurality of fixing assemblies for fixing the support frame (2) to the top of the bottom plate (5); the top of the bottom plate (5) is provided with a headrest (3) below the support frame.

2. The head and neck tumor radiotherapy protection device of claim 1, wherein, The fixing assembly comprises a corresponding equal number of notches (10) on the top of the bottom plate (5), the notches (10) are all fixedly connected with support shafts (12), the support shafts (12) are all rotatably connected with clamping tenons (13), the clamping tenons (13) are all fixedly connected with springs (11) below the support shafts (12), the other ends of the springs (11) are all fixedly connected with the inner walls of the notches (10); the clamping tenons (13) are respectively buckled with the corresponding clamping heads (14).

3. The head and neck tumor radiotherapy protection device of claim 2, wherein, The top of the bottom plate (5) is provided with a buffer layer (9).

4. The head and neck tumor radiotherapy protection device of claim 3, wherein, The side of the mask (1) away from the bottom plate is bonded with a shielding layer (15).

5. The head and neck tumor radiotherapy protection device of claim 4, wherein, The side of the headrest (3) away from the bottom plate (5) is an arc surface, and the arc surface is bonded with an air bag (4).

6. The head and neck tumor radiotherapy protection device of claim 5, wherein, The top of the bottom plate (5) is provided with a first binding belt (8).

7. The head and neck tumor radiotherapy protection device of claim 6, wherein, The side of the mask (1) contacting the patient is provided with a non-stick coating layer (16).

8. The head and neck tumor radiotherapy protection device of claim 7, wherein, The support frame (2) is symmetrically provided with a handle (7) on both sides.

9. The head and neck tumor radiotherapy protection device of claim 8, wherein, The top of the bottom plate (5) is provided with a handle (6).

10. The head and neck tumor radiotherapy protection device of claim 9, wherein, The first binding belt (8) is fixedly connected with a plurality of second binding belts (17), and the second binding belts (17) are all detachably connected with the support frame (2).

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