Eyeball positioning platform for ocular radiotherapy

Abstract

The utility model discloses an eyeball positioning platform for eyeball radiotherapy, which comprises a lying component, a head positioning component and an eyeball positioning component. The lying component comprises a base and a bed plate arranged on the base. The head positioning component comprises a headrest arranged on the bed plate and two groups of side pillows symmetrically arranged on both sides of the headrest. The eyeball positioning component is arranged on a support of the lying component, and a positioning plate is mounted on the support. An LED point light source array is arranged on the positioning plate and has an adjustable pitch angle. The platform illuminates the LED light source at a specified position in the LED point light source array and guides the patient's eyeball to gaze at the position LED light source, thereby achieving high-precision positioning of the patient's eyeball. Meanwhile, the headrest and the side pillows are used to jointly fix the patient's head, thereby avoiding positioning deviation caused by the slight movement of the head. The side pillows are designed with grooves on the inner sides to accommodate the patient's ears to reduce the compression. A loudspeaker is integrated in the groove to ensure effective communication between medical staff and patients.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, specifically to an ocular positioning platform for ocular radiotherapy. Background Technology

[0002] In ocular radiotherapy, treatment precision directly affects the therapeutic effect and safety. With the development of radiotherapy technology, more and more clinical applications require precise positioning of the patient's eyeball to ensure that the radiation beam is accurately focused on the predetermined target area, avoiding radiation damage to surrounding normal tissues. Therefore, how to achieve stable and precise fixation of the patient's eyeball and head has become a key technical issue in improving the clinical efficacy of ocular radiotherapy. Currently, traditional eye positioning methods mainly rely on manual assistance or simple mechanical devices. However, these methods have shortcomings:

[0003] For example, utility model patent CN 216091910 U discloses a technical solution using a head fixation component, which includes a mouth support, a thermoplastic mask, and a mouthpiece. Specifically, the thermoplastic mask has a contour plate along its edge, which is connected to a fixing base plate. Windows for the eyes and mouth are also provided on the thermoplastic mask for easy observation and adjustment. The solution also includes a mouth support above the thermoplastic mask, on which a mouthpiece is mounted. The mouthpiece slides longitudinally within a groove in the mouth support fixing block via an adjusting plate, and its position is determined by a fixing component. Furthermore, the mouthpiece is molded from the patient's teeth using a molding material to achieve fixation of the patient's mouth.

[0004] However, this technical solution has drawbacks: when the mouth support is used to fix the patient's mouth, the patient must keep their mouth open, which causes the oral and facial muscles to be in a tense state for a long time, increasing the patient's discomfort and potentially causing muscle fatigue or spasms. At the same time, the patient will unconsciously swallow after secreting saliva, which will affect the overall positioning accuracy.

[0005] Furthermore, this utility model patent employs an LED point light source array to determine the eyeball position, with the array mounted on a horizontal mounting plate. The fixed position and angle of this mounting plate do not change with the angle adjustment of the headrest or other positioning components. When the patient lies flat with their face upwards, due to the angle adjustment of the head positioning components (such as the headrest), the patient's line of sight often cannot maintain a perpendicular relationship with the horizontally mounted LED point light source array, easily resulting in a line-of-sight deviation. This line-of-sight deviation leads to angular errors between the patient's actual eyeball polar angle and azimuth angle and the calculated specified angle, causing deviations in eyeball positioning. This may result in poor treatment dose distribution, increased radiation risk to surrounding healthy tissues, and reduced treatment safety and effectiveness.

[0006] Therefore, there is an urgent need to design an ocular positioning platform for ocular radiotherapy to overcome the shortcomings of existing technologies, improve the safety and efficacy of radiotherapy, and meet the clinical requirements for high-precision radiotherapy. Utility Model Content

[0007] The purpose of this invention is to provide an eye positioning platform for ocular radiotherapy. This platform can achieve high-precision positioning of the patient's eyeball during ocular radiotherapy, while also stabilizing and fixing the patient's head to avoid positioning errors caused by head tilt angle, thereby ensuring accurate positioning of the eyeball during radiotherapy and reducing the risk of radiation damage to surrounding normal tissues.

[0008] The technical solution adopted by this utility model to solve the above problems is: an ocular positioning platform for ocular radiotherapy, comprising...

[0009] Reclining assembly: includes a base and a bed board, with the bed board mounted on the base;

[0010] Head positioning components: including a headrest mounted on the bed board and two sets of side pillows symmetrically arranged on both sides of the headrest;

[0011] Eye positioning component: includes a bracket set on the reclining component, a positioning plate set on the bracket, an LED point light source array set on the positioning plate, and the tilt angle of the positioning plate is adjustable.

[0012] Preferably, the bracket includes two sets of front axle frames and two sets of rear axle frames. The front and rear axle frames are vertically mounted on the bed board and are vertically slidably fitted with a first sliding sleeve and a second sliding sleeve. Each is provided with a fixing component for position fixation. The positioning plate is slidably connected to a set of positioning frames on both the left and right sides. The front end of the positioning frame is hinged to the first sliding sleeve and fixed at an angle by a locking component. Several limiting grooves are opened at the lower rear end of the positioning frame. The second sliding sleeve is provided with a limiting block that is fitted and matched with the limiting groove.

[0013] Preferably, the headrest includes a fixed part disposed on the bed board and a support part for supporting the patient's head. The front ends of the fixed part and the support part are hinged to each other, and a telescopic rod for adjusting the angle of the support part is provided between the fixed part and the support part.

[0014] Preferably, the side pillow is fixed to the slide, and the slide is equipped with an adjustment component that drives it to move horizontally left and right. The adjustment component includes a fixed seat fixed to the bed board, the fixed seat has a sliding groove that is adapted to slide the slide, and the fixed seat is rotatably connected to an adjustment screw that is adapted to screw the slide, and one end of the adjustment screw is provided with an adjustment handwheel.

[0015] Preferably, the inner side of the side pillow has a groove.

[0016] Preferably, a speaker is provided in the groove.

[0017] Compared with the prior art, this utility model has the following advantages and effects:

[0018] This invention employs a positioning plate with an adjustable pitch angle, upon which an LED point light source array is arranged, enabling real-time and accurate positioning of the patient's eyeballs. By adjusting the relative angle between the positioning plate and the patient's face, the LED light source is always perpendicular to the plane of the eyeball, ensuring precise eyeball positioning and reducing the impact of radiation on surrounding healthy tissues. The head positioning component consists of a headrest mounted on the bed board and two sets of side pillows symmetrically arranged on both sides of the headrest. The headrest uses a hinged structure between the fixed and supporting parts, and the angle of the supporting part is adjusted by a telescopic rod, achieving personalized support and stable fixation for the patient's head, preventing positioning deviations caused by slight movements during treatment. The inner side of the side pillows has grooves to accommodate the patient's ears, effectively reducing pressure on the auricle and avoiding discomfort caused by prolonged fixation. Simultaneously, speakers are installed within the grooves, connecting to the device control module via wired or wireless means, enabling real-time voice communication between medical staff and patients. This ensures the transmission of operational instructions, alleviates patient anxiety during treatment, and enhances the overall treatment experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an ocular positioning platform for ocular radiotherapy according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the eyeball positioning component according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the head positioning component according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the headrest structure according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the structure of the adjusting component in an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the side pillow structure according to an embodiment of the present invention.

[0025] Figure Numbers: Lying-down assembly 10, base 11, bed board 12, head positioning assembly 13, headrest 14, side pillow 15, eyeball positioning assembly 16, bracket 17, positioning plate 18, LED point light source array 19, front axle bracket 21, rear axle bracket 22, first sliding sleeve 23, second sliding sleeve 24, fixing part 25, positioning frame 26, locking part 27, limiting groove 28, limiting block 29, fixing part 31, support part 32, telescopic rod 33, slide seat 41, adjusting part 42, fixing seat 43, sliding groove 44, adjusting screw 45, adjusting handwheel 46, groove 51, speaker 52. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0027] Example:

[0028] See Figure 1 - Figure 3 This embodiment relates to an ocular positioning platform for ocular radiotherapy, specifically used for precise positioning of a patient's eyeball during ocular radiotherapy, and includes:

[0029] Lying-down assembly 10: includes a base 11 and a bed board 12, with the bed board 12 disposed on the base 11;

[0030] Head positioning component 13: includes a headrest 14 mounted on the bed board 12 and two sets of side pillows 15 symmetrically mounted on both sides of the headrest 14;

[0031] Eye positioning component 16: includes a bracket 17 disposed on the reclining component 10, a positioning plate 18 disposed on the bracket 17, an LED point light source array 19 disposed on the positioning plate 18, and the tilt angle of the positioning plate 18 is adjustable.

[0032] Specifically, in this embodiment, the patient is stably placed on the bed board 12 on the platform. The bed board 12 is fixed to the base 11, which is placed on the ground to ensure overall structural stability. The rear end of the bed board 12 has an arc end, with the patient's head facing this arc end and their feet placed on the other end when lying down. A headrest 14 is pre-fixed on the bed board 12. The headrest 14 includes a main support part 32 for supporting the patient's head. Two sets of side pillows 15 are installed on both sides of the headrest 14. The side pillows 15 are adjusted relative to the headrest 14 to fit the sides of the patient's head. By observing the fit between the patient's head and the side pillows 15, the position of the side pillows 15 is adjusted until the patient's head is fixed and cannot rotate. A positioning plate 18 is installed on the bracket 17, and an LED point light source array 19 is arranged on the positioning plate 18. The positioning plate 18 has an adjustable pitch angle. Medical staff can adjust the angle of the positioning plate 18 so that the illumination direction of the LED point light source array 19 is perpendicular to the plane of the patient's eyeballs. During the adjustment process, the initial position of the positioning plate 18 is first preset (5-30cm from the patient's face). Then, based on the position of the patient's face and eyeballs, the pitch angle of the positioning plate 18 is finely adjusted until the positioning plate 18 is nearly parallel to the patient's face. In this embodiment, the LED point light source array 19 is composed of several LED beads arranged horizontally and vertically, and each LED bead has independent switch control. Medical staff illuminate the LED beads at designated positions to achieve precise positioning of the patient's eyeballs.

[0033] See Figure 2In this embodiment, the positioning plate 18 adopts a detachable structure design. Specifically, the bracket 17 consists of two sets of front axle frames 21 and two sets of rear axle frames 22. The front axle frames 21 and rear axle frames 22 are vertically arranged on the bed board 12, and are respectively vertically slidably sleeved with a first sliding sleeve 23 and a second sliding sleeve 24. Both the first sliding sleeve 23 and the second sliding sleeve 24 are provided with fixing members 25 for position fixation. A set of positioning frames 26 are slidably connected to the left and right sides of the positioning plate 18. The front end of the positioning frame 26 is hinged to the first sliding sleeve 23 and is fixed at an angle by locking member 27. Several limiting grooves 28 are opened at the lower rear end of the positioning frame 26, and the second sliding sleeve 24 is provided with limiting blocks 29 that are adapted to engage with the limiting grooves 28. The positioning frame 26 is also connected and fixed to the positioning plate 18 by fixing member 25. The fixing member 25 can be a bolt. After the bolt is loosened, the positioning plate 18 slides into the sliding groove 44 between the two sets of positioning frames 26 and is screwed in again to lock. The fixing parts 25 used for the first sliding sleeve 23 and the second sliding sleeve 24 are also bolted to them. The bolts are used to fix the height of the two on the front axle bracket 21 and the rear axle bracket 22, respectively. In use, the height of the first sliding sleeve 23 is adjusted first, and then the locking part 27 is loosened to adjust the angle of the positioning frame 26 and the positioning plate 18. After the angle is determined, the height of the second sliding sleeve 24 is adjusted so that the limiting block 29 on the second sliding sleeve 24 is engaged in the limiting groove 28 below the front end of the positioning frame 26. Finally, the angle of the positioning frame 26 is locked by the locking part 27. The above operation realizes the installation, angle adjustment and angle locking of the positioning plate 18.

[0034] See Figure 4 In this embodiment, the headrest 14 includes a fixing part 31 mounted on the bed board 12 and a support part 32 for supporting the patient's head. The front ends of the fixing part 31 and the support part 32 are hinged to each other, and a telescopic rod 33 for adjusting the angle of the support part 32 is provided between the fixing part 31 and the support part 32. The support part 32 has a curved surface that conforms to the contour of the patient's head. The telescopic rod 33 can be a cylinder or a pad; the angle between the support part 32 and the fixing part 31 is gradually adjusted by extending the length of the telescopic rod 33, so that the surface of the support part 32 can conform to the back of the patient's head and neck area, providing uniform support. During the adjustment process, the patient can provide appropriate feedback so that the operator can fine-tune it to the position where the patient feels most comfortable and the fixation effect is optimal.

[0035] See Figure 5The side pillow 15 is fixedly connected to a slide 41. The slide 41 is equipped with an adjusting component 42 that drives its horizontal movement. The adjusting component 42 includes a fixed seat 43 fixed to the bed board 12. The fixed seat 43 has a sliding groove 44 that is adapted to slide the slide 41. The fixed seat 43 is rotatably connected to an adjusting screw 45 that is screwed to the slide 41. One end of the adjusting screw 45 is provided with an adjusting handwheel 46. Medical staff can rotate the adjusting screw 45 by turning the adjusting handwheel 46. Through the threaded connection between the adjusting screw 45 and the slide 41, the fixed seat 43 and the side pillow 15 are driven to move horizontally relative to the fixed seat 43. The adjusting screw 45 has a self-locking function, which can lock the side pillow 15 after clamping the patient's head on both sides, ensuring the positioning effect of the head.

[0036] See Figure 6 The side pillow 15 has a groove 51 on its inner side, which can accommodate the patient's ear. When the side pillow 15 clamps the patient's head on both sides, the groove 51 forms a space between itself and the patient's ear, effectively reducing the pressure of the side pillow 15 on the patient's auricle and avoiding discomfort caused by prolonged fixation. Considering that the patient's ear being partially obstructed by the groove 51 of the side pillow 15 may affect normal communication with medical staff, this embodiment includes a speaker 52 inside the groove 51. The speaker 52 is connected to the control module of the device and receives audio signals via wired or wireless means. Medical staff can use the speaker 52 to communicate with the patient, provide voice guidance or background music, further alleviate the patient's tension during treatment, and improve the overall treatment experience.

[0037] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. An ocular positioning platform for ocular radiotherapy, characterized in that, include Reclining assembly: includes a base and a bed board, with the bed board mounted on the base; Head positioning components: including a headrest mounted on the bed board and two sets of side pillows symmetrically arranged on both sides of the headrest; Eye positioning component: includes a bracket set on the reclining component, a positioning plate set on the bracket, an LED point light source array set on the positioning plate, and the tilt angle of the positioning plate is adjustable.

2. The ocular positioning platform for ocular radiotherapy according to claim 1, characterized in that: The bracket includes two sets of front axle frames and two sets of rear axle frames. The front and rear axle frames are vertically mounted on the bed board and are vertically slidably fitted with a first sliding sleeve and a second sliding sleeve. Each of them is equipped with a fixing component to fix its position. The positioning plate is slidably connected to a set of positioning frames on both the left and right sides. The front end of the positioning frame is hinged to the first sliding sleeve and fixed at an angle by a locking component. Several limiting grooves are opened at the lower rear end of the positioning frame. The second sliding sleeve is equipped with a limiting block that engages with the limiting groove.

3. The ocular positioning platform for ocular radiotherapy according to claim 1, characterized in that: The headrest includes a fixed part mounted on the bed board and a support part for supporting the patient's head. The front ends of the fixed part and the support part are hinged to each other, and a telescopic rod for adjusting the angle of the support part is provided between the fixed part and the support part.

4. The ocular positioning platform for ocular radiotherapy according to claim 1, characterized in that: The side pillow is fixed to the slide, and the slide is equipped with an adjustment component that drives it to move horizontally left and right. The adjustment component includes a fixed seat fixed to the bed board. The fixed seat has a sliding groove that is adapted to slide the slide. The fixed seat is rotatably connected to an adjustment screw that is adapted to screw the slide. One end of the adjustment screw is provided with an adjustment handwheel.

5. The ocular positioning platform for ocular radiotherapy according to claim 1, characterized in that: The inner side of the side pillow has a groove.

6. The ocular positioning platform for ocular radiotherapy according to claim 5, characterized in that: A speaker is installed inside the groove.

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