Device for assisting closing of upper eyelids and lower eyelids of patient

Abstract

The invention relates to the technical field of medical instruments, in particular to a device for assisting upper and lower eyelids of a patient in closing, which comprises a glasses frame, glasses legs arranged on two sides of the glasses frame and a nose pad in the middle, and further comprises an eyelid fixing component mounted on the inner side of the glasses frame through a mounting frame, and a traction mechanism arranged in the mounting frame and used for fixing the eyelids. The traction mechanism is connected with the eyelid fixing assembly and is used for driving the eyelid fixing assembly to assist the closing and opening of the upper and lower eyelids of the patient, so that the problems that the existing device mostly adopts rigid fixation or continuous external force to assist the closing and opening of the upper and lower eyelids of the patient and cannot be dynamically adjusted along with the blinking action of the patient are solved; the closing and opening switching process of the eyelids of the patient is stiff, the cornea can be pressed due to too large instant tension during closing, the eyelids cannot be completely opened due to insufficient reset force during eye opening, the switching process is lack of natural buffering, and meanwhile, due to uncontrollable fixing force, the cornea cannot be completely opened. And falling-off is easily caused by sweat and expression activities.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for assisting a patient in closing their upper and lower eyelids. Background Art

[0002] Incomplete eyelid closure actually refers to the inability of the patient's upper and lower eyelids to close completely, leaving part of the eyeball exposed to the outside. This disease is also called rabbit eye clinically. Mild to moderate incomplete eyelid closure will cause the patient's conjunctiva to become congested, dry, and excessively keratinized. Severe incomplete eyelid closure can cause exposure keratitis and even corneal ulcers and perforations, leading to blindness. In order to assist the patient's upper and lower eyelids to close, mild and moderate cases require ointments and medical tapes to be pasted together, and severe patients require long-term suture of the upper and lower eyelids to achieve the purpose of closure.

[0003] The Chinese patent publication number CN213697467U discloses a device for assisting a patient in closing the upper and lower eyelids, comprising an eye frame, wherein two push plates are symmetrically arranged inside the eye frame, one end of the push plates is fixed with a silicone pad, and the other end of the push plates is fixed with a push rod, one end of the push rod is externally sleeved with a mounting tube, one end of the mounting tube is fixed to the inner wall of the eye frame, a spring is arranged inside the mounting tube, and one end of the spring is in contact with the surface of the push rod; the silicone pad designed in the utility model has good flexibility, thereby avoiding direct contact between the push plates and the eyelids to cause damage, and the designed push rod pushes the elastic force exerted by its spring to the push plates, so that the push plates squeeze the upper and lower eyelids to achieve an auxiliary closing effect, and at the same time, it will not cause damage to the eyes when disassembled later, and one side surface of the designed eye frame is provided with an arc surface with a certain arc, so that it fits perfectly with the eye frame and the eyes.

[0004] However, devices such as the aforementioned that assist patients in closing their upper and lower eyelids often use rigid fixation or continuous external force (such as tape adhesion or spring constant force pulling) to assist the closing and opening of the patient's upper and lower eyelids, and cannot dynamically adjust to the patient's own blinking movements. In addition, the closing and opening switching of such devices relies on manual adjustment (such as knob tightening) or electronic control (such as motor drive), and the transition process is abrupt. When closing, the cornea may be compressed due to excessive instantaneous tension. When opening the eyes, the eyelids may not be fully opened due to insufficient reset force, resulting in a lack of natural buffering for the patient's transition between closing and opening. Electronic components also have the risk of battery life and failure, making them unsuitable for long-term wear. At the same time, some devices require external energy sources such as batteries and sensors, or precision components, which not only increases weight but also may pose safety hazards such as leakage and false triggering. The structure is relatively complex. Simple patch-type devices (such as medical tape) have a simple structure, but the fixing force is uncontrollable, and they are easily detached due to sweat and facial movements. They cannot achieve the "assisted closing-automatic eye opening" cycle, and their adaptability is limited. Summary of the Invention

[0005] The purpose of the present application is to provide a device for assisting patients in closing and opening their eyelids, which overcomes the problem that in the prior art, devices for assisting eyelid closure and opening usually use rigid fixation or continuous external force to assist patients in closing and opening their eyelids, cannot follow the dynamic adjustment of the patients' own blinking actions, and the switching of the devices for assisting patients in closing and opening their eyelids relies on manual or electric adjustment, the switching process is relatively harsh, the eyelids may be compressed due to excessive instantaneous pulling force when closing, the eyelids may not be fully opened due to insufficient resetting force when opening, the switching process lacks natural buffering, and the fixed force is uncontrollable, which may easily fall off due to sweat and facial expressions, resulting in poor adaptability.

[0006] To achieve the above purpose, the technical scheme adopted by the present application to solve its technical problems is: A device for assisting patients in closing and opening their eyelids is designed, which relies on the design of "blinking trigger-mechanical linkage" to ensure that the assisting closing force completely follows the patients' own blinking actions, ensures that the external force is synchronized with the human body's autonomous action, avoids the action jamming or muscle burden caused by rigid intervention, improves the naturalness of wearing, and uses the gravity of the counterweight to drive the closing, the solution buoyancy and the air bag buffer to realize the opening resetting, without the need for electric or manual adjustment, so that the closing-opening process is naturally completed with the help of gravity, buoyancy and the human body's own strength, reducing the pulling damage to the eyelids and improving the flexibility of the action. The specific scheme is as follows: A device for assisting patients in closing and opening their eyelids, comprising a glasses frame, glasses legs arranged on both sides of the glasses frame, and a nose pad arranged in the middle of the glasses frame, further comprising: An eyelid fixing assembly is installed on the inner side of the glasses frame through a mounting bracket, used for adhering to the upper and lower eyelids of the patient; A pulling mechanism is arranged in the mounting bracket, the pulling mechanism is connected with the eyelid fixing assembly, and is used for driving the eyelid fixing assembly to assist the patient in closing and opening the eyelids.

[0007] Preferably, the eyelid fixing assembly comprises: An upper fixing strip is connected to the pulling mechanism, used for pulling the upper eyelid of the patient to close, and an upper magnetic strip is arranged on the lower side of the upper fixing strip; A lower fixing strip is connected to the upper fixing strip at both ends, and a lower magnetic strip corresponding to the upper magnetic strip is arranged on the upper side of the lower fixing strip.

[0008] Preferably, the pulling mechanism comprises: An intermediate trigger assembly is arranged on the inner side of the top of the mounting bracket, and the intermediate trigger assembly is connected to the middle of the upper fixing strip through a first pulling rope; Counterweight assemblies are arranged inside both sides of the mounting frame and connected to both ends of the intermediate trigger assembly respectively, and the counterweight assemblies are connected to both ends of the lower fixed bar.

[0009] Preferably, the intermediate trigger assembly comprises: Triangular sliding blocks are arranged in the middle of the movable grooves of the top part, the upper ends of the first pulling ropes are arranged in the sliding grooves in the triangular sliding blocks, and sliding rods are connected to the triangular sliding blocks. Lever trigger pieces are arranged on both sides of the triangular sliding blocks and abut against the lower sides of both ends of the sliding rods.

[0010] Preferably, the lever trigger pieces comprise: Flip plates are rotationally connected in the middle of the movable grooves and the inner side ends are below the sliding rods; Trigger plates are rotationally connected in the movable grooves and the outer side ends abut against the counterweight assemblies and the inner side ends abut against the outer side ends of the flip plates.

[0011] Preferably, the counterweight assemblies comprise: Counterweight boxes are arranged in the counterweight grooves on both sides of the mounting frame, the counterweight boxes are connected to the second pulling ropes, and the second pulling ropes are connected to both ends of the upper fixed bar; Trigger rods penetrate the top of the counterweight boxes and abut against the locking blocks on both sides of the counterweight boxes, and the upper ends of the trigger rods abut against the intermediate trigger assemblies.

[0012] Preferably, piston plates are slidingly connected in the counterweight boxes, the piston plates abut above the locking blocks, and the first springs are connected between the bottom of the piston plates and the bottom of the counterweight boxes; The lower ends of the second pulling ropes penetrate the piston plates and the bottom of the counterweight boxes from top to bottom in sequence, and the counterweight blocks are connected to the second pulling ropes and located in the lifting grooves in the bottom of the counterweight boxes.

[0013] Preferably, the lifting grooves are filled with solutions, and the counterweight blocks are located in the solutions in the lifting grooves; The counterweight blocks are wrapped with air bags, the air bags are connected to the telescopic hoses wrapped outside the second pulling ropes, and the telescopic hoses are communicated with the bottom of the counterweight boxes.

[0014] The beneficial effects of the present application are: 1、The present application takes glasses as the overall bearing frame, forms a "wear-linkage" system by combining with the eyelid fixed assembly attached to the upper and lower eyelids of the patient, and realizes the precise connection of "blink action capture-closed force transmission" through the three-point connection (intermediate trigger point, two side pulling points) on the upper fixed bar, which not only ensures the stability of the eyelid, but also synchronously links with the eyelid movement.

[0015] 2、The application utilizes a closed-loop linkage mechanism of pure mechanical triggering of the eyelid fixing assembly, the intermediate triggering assembly and the counterweight assembly, relies on the mechanical transmission chain of "eyelid closing or blinking tension-lever-triggering rod-counterweight", and triggers the subsequent action only by the eyelid closing or blinking action of the patient without external energy. The blinking force is transmitted to the triggering rod through the rope, the force is amplified through the lever structure, the fixing assembly is driven to contract and release the counterweight, and the "self-triggering-self-driving" closing start is realized.

[0016] 3、The application adopts the dynamic balance design of the gravity of the counterweight and the buoyancy of the air bag. The counterweight sinks in the solution to drive the eyelid closing by the gravity, and the air bag wrapped outside the counterweight is inflated by compressing the gas in the lower chamber of the counterweight box through the piston plate. The reset power is formed by the solution buoyancy and the first spring elastic force, and the switching of closing and opening is realized without manual intervention.

[0017] 4、The core components in the application, i.e. the upper and lower fixing strips, the triggering rod, the counterweight and the air bag, have clear division of labor and cooperative linkage. The upper fixing strip is responsible for the capture and transmission of force, the lever triggering piece structure realizes the amplification and direction conversion of force, and the combination of the counterweight and the air bag completes the power output and buffering. The overall structure is simple and functional closed loop, reduces the pulling damage to the eyelid, and improves the flexibility of the action. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 2 It is an internal structure schematic view of the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 3 It is a sectional view of the spectacle frame in the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 4 It is Figure 3 It is a local enlarged schematic view of A in the middle; Figure 5 It is a structure schematic view of the mounting frame in the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 6 It is an internal structure schematic view of the mounting frame in the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 7 It is a connection relationship schematic view of the intermediate triggering assembly and the counterweight assembly in the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 8 It is a structure schematic view of the intermediate triggering assembly in the device for assisting the patient in closing the upper and lower eyelids of the application; Figure 9 Figure 1 is a schematic view of an eyelid closure assisting device according to the present application; Figure 10 Figure 2 is a schematic view of a counterweight assembly in the eyelid closure assisting device according to the present application; Figure 11 Figure 3 is a schematic view of an internal structure of a counterweight box in the eyelid closure assisting device according to the present application; Figure 12 Figure 4 is a schematic view of a mounting frame in the eyelid closure assisting device according to the present application; Figure 11 Figure 5 is a schematic view of a partial enlargement of B in Figure 4; Figure 13 Figure 6 is a perspective view of the eyelid closure assisting device according to the present application; Figure 14 Figure 7 is a perspective view of the mounting frame in the eyelid closure assisting device according to the present application.

[0019] In the figure: 1 - eyeglass frame; 11 - eyeglass leg; 12 - nose pad; 2 - mounting frame; 21 - movable slot; 22 - counterweight slot; 23 - lifting slot; 3 - eyelid fixation assembly; 31 - upper fixation strip; 311 - middle connection point; 312 - end connection point; 313 - upper magnetic strip; 32 - lower fixation strip; 321 - lower magnetic strip; 4 - counterweight assembly; 41 - trigger rod; 411 - extension rod; 412 - second spring; 413 - U-shaped insertion rod; 42 - counterweight box; 43 - piston plate; 44 - counterweight block; 441 - flexible hose; 442 - second pull rope; 443 - air bag; 45 - third spring; 46 - locking block; 47 - first spring; 5 - middle trigger assembly; 51 - triangular sliding block; 511 - sliding slot; 52 - flip plate; 53 - trigger plate. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with embodiments and drawings, the schematic embodiments of the present application and the description thereof are only used to explain the present application, and do not limit the present application.

[0021] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without these specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring the present application.

[0022] Throughout this specification, the term "one embodiment," "an embodiment," "one example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. Therefore, appearances of the phrases "one embodiment," "an embodiment," "one example," or "an example" in various places throughout this specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Additionally, the person of ordinary skill in the art will understand that the drawings provided herein are for illustrative purposes and that drawing figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] In the description of the application, the terms "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal", "high", "low", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the 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 limiting the scope of protection of the application.

[0024] As shown in Figures 1-14 The application provides a device for assisting a patient in closing the upper and lower eyelids, which comprises a spectacle frame 1, spectacle legs 11 arranged on both sides of the spectacle frame, and a nose pad 12 arranged in the middle of the spectacle frame, is made of light and strong material, such as light alloy, which can ensure the stability of the device and will not bring too much burden to the patient, and the design of the spectacle frame 1 conforms to the ergonomics, can be comfortably worn around the eyes of the patient, to form the whole spectacle frame for the patient to wear, and medical silicone soft pads with adjustable positions are arranged on the nose pad 12 and the spectacle legs 11, the medical silicone soft pads are used to contact the skin of the patient, to avoid discomfort to the patient during wearing, and further comprising an eyelid fixing assembly 3, which is installed on the inner side of the spectacle frame 1 through a mounting bracket 2, is used to fit on the upper and lower eyelids of the patient, the mounting bracket 2 is in a U-shaped structure, and a pulling mechanism is arranged in the mounting bracket 2, the pulling mechanism is connected with the eyelid fixing assembly 3, and is used to drive the eyelid fixing assembly 3 to assist the patient in closing and opening the upper and lower eyelids.

[0025] The eyelid fixing assembly 3 comprises an upper fixing strip 31 connected to the pulling mechanism for pulling the upper eyelid of the patient to close, and an upper magnetic strip 313 arranged on the lower side of the upper fixing strip 31, and a lower fixing strip 32, the two ends of which are respectively connected to the two ends of the upper fixing strip 31, and a lower magnetic strip 321 corresponding to the upper magnetic strip 313 is arranged on the upper side of the lower fixing strip 32. The upper fixing strip 31 and the lower fixing strip 32 are arranged symmetrically and are respectively attached to the upper and lower eyelids of the patient, are made of medical silicone material, have good flexibility and biocompatibility, can be attached to the eyelids of the patient, and will not cause irritation or allergic reaction to the skin, and the upper and lower eyelids of the patient can be completely closed through the adsorption capacity of the upper magnetic strip 313 and the lower magnetic strip 321 in the closing process, thereby improving the closing effect of the upper and lower eyelids of the patient.

[0026] The pulling mechanism comprises an intermediate trigger assembly 5 arranged inside the top of the mounting frame 2, a first pulling rope 54 connected to the middle part of the upper fixing strip 31 through the middle part of the intermediate trigger assembly 5, when the eyes of the patient blink downward, the upper eyelid drives the upper fixing strip 31 to move downward, thereby pulling the first pulling rope 54, so that the first pulling rope 54 becomes the trigger starting point of the whole device, and a counterweight assembly 4 arranged inside the two sides of the mounting frame 2 and connected to the two ends of the intermediate trigger assembly 5, the counterweight assembly 4 is connected to the two ends of the lower fixing strip 32, so that the lower fixing strip 32 is pulled downward from the two ends of the upper fixing strip 31 through the counterweight assembly 4, so that the upper and lower eyelids of the patient are closed.

[0027] The intermediate trigger assembly 5 comprises a triangular sliding block 51 arranged in the middle of the movable groove 21 on the top, the upper end of the first pulling rope 54 is arranged in a sliding groove 511 in the triangular sliding block 51, and a sliding rod 541 is connected to the upper end of the first pulling rope 54, lever trigger pieces are arranged on the two sides of the triangular sliding block 51 and abut against the lower sides of the two ends of the sliding rod 541, the lower end of the first pulling rope 54 is connected to the middle part of the upper fixing strip 31 through the intermediate connecting point 311, and the upper end of the first pulling rope 54 is connected to the sliding rod 541 by penetrating the sliding groove 511 arranged in the triangular sliding block 51, so that the first pulling rope 54 can be pulled by the upper fixing strip 31 during the closing or blinking of the upper eyelid of the patient, the sliding rod 541 is pulled downward in the sliding groove 511 to trigger the lever trigger pieces, so that the counterweight assembly can fully promote the complete closing of the upper eyelid.

[0028] The lever trigger pieces comprise a turnover plate 52 rotatably connected in the middle of the movable groove 21, and an inner side end located below the sliding rod 541, and a trigger plate 53 rotatably connected in the movable groove 21, and an outer side end abutting against the counterweight assembly 4, and an inner side end abutting against the outer side end of the turnover plate 52, in the process of pulling the sliding rod 541 downward by the first pulling rope 54, the inner side end of the turnover plate 52 is pressed downward by the two ends of the sliding rod 541, so that the outer side end of the turnover plate 52 is lifted upward, thereby pushing the inner side end of the trigger plate 53 to rise and causing the outer side end of the trigger plate 53 to drop, so as to trigger the counterweight assembly 4 to close the upper and lower eyelids of the patient.

[0029] In the above embodiment, through the patient's upper eyelid closure or blink, the first pull rope 54 connected to the middle of the upper fixed strip 31 attached to the upper eyelid can be pulled, and then the sliding rod 541 can be pulled along the sliding groove 511 by the first pull rope 54 to move downward, and then the inside end of the flip plate 52 can be forced to drop and the outside end to rise by the lever principle, so that the inside end of the trigger plate 53 rises and the outside end drops, in order to trigger the counterweight assembly 4 to drive the patient's upper eyelid to fully close.

[0030] The counterweight assembly 4 includes a counterweight box 42 arranged in the counterweight groove 22 on both sides of the mounting frame 2, and the second pull rope 442 connected to the counterweight box 42, the second pull rope 442 is connected to the two ends of the upper fixed strip 31 through the end connecting point 312, so as to pull the patient's upper eyelid downward by the counterweight assembly 4, the trigger lever 41, the lower end of which is provided with a U-shaped insertion lever 413 penetrating the top of the counterweight box 42, and the two ends thereof are respectively abutted on the locking blocks 46 on both sides inside the counterweight box 42, the locking blocks 46 are provided with third springs 45 outside, the upper end of the trigger lever 41 is abutted on the middle trigger assembly 5, and the trigger assembly 5 is used to trigger the trigger lever 41, so that the locking blocks 46 extrude the third springs 45 to retract the inner wall of the counterweight box 42, so that the locked piston plate 43 is unlocked, and the extension rod 411 is arranged in the sidewall of the counterweight groove 22 in the middle of the trigger lever 41, and the second spring 412 is arranged at the bottom of the extension rod 411, to ensure the reset work of the trigger lever 41 after triggering.

[0031] The piston plate 43 is slidably connected in the counterweight box 42, and the piston plate 43 is abutted above the locking blocks 46, and the first spring 47 is connected between the bottom of the piston plate 43 and the bottom of the counterweight box 42, to ensure the reset work of the piston plate 43 after moving, and the air hole is further arranged on the upper side of the counterweight box 42, which ensures the smooth sliding of the piston plate 43 in the counterweight box 42, the second pull rope 442 is sequentially penetrated from top to bottom through the piston plate 43 and the bottom of the counterweight box 42, and is connected with the counterweight block 44, which is made of high-density material and has a certain weight, which is a key factor for generating downward pulling force to assist eyelid closure, and the counterweight block 44 is located in the lifting groove 23 at the bottom of the counterweight box 42, and the second pull rope 442 is pulled by the weight of the counterweight block 44 to pull the upper fixed strip 31 downward.

[0032] The lifting groove 23 is filled with a solution, which is usually a liquid with certain density and no corrosive effect on the device components, such as a specially formulated medical silicone oil. The counterweight block 44 is placed in the solution in the lifting groove 23, and is wrapped with an air bag 443. The air bag 443 is connected to a flexible hose 441 wrapped outside the second pull rope 442. The flexible hose 441 communicates with the bottom of the counterweight box 42. The air pressure in the chamber at the bottom of the piston plate 43 can be changed by sliding the piston plate 43 in the counterweight box 42. In turn, the air bag 443 can be inflated or deflated through the flexible hose 441, to change the buoyancy of the counterweight block 44 in the solution in the lifting groove 23, and to cooperate with the restoring force of the first spring 47 to facilitate the resetting of the piston plate 43.

[0033] In the above embodiment, during the downward pushing of the trigger lever 41 at the outer end of the trigger plate 53, the L-shaped structure of the locking block 46 causes the U-shaped insertion rod 413 at both ends to press the inside of the locking block 46, causing the locking block 46 to retract into the side wall of the counterweight box 42, thereby losing the limiting effect on the piston plate 43 and losing the support ability of the piston plate 43. In turn, since the lower end of the second pull rope 442 is connected with the counterweight block 44, and the lower end of the second pull rope 442 is connected to the piston plate 43, the piston plate 43 is pulled downward in the counterweight box 42 by the counterweight block 44. The second pull rope 442 pulls the upper fixed bar 31 downward, and the upper and lower fixed bars 31 and 32 are completely closed, so that the patient's upper and lower eyelids are completely closed.

[0034] When the piston plate 43 moves downward under the action of the counterweight block 44, the gas in the chamber below the piston plate 43 is compressed. Under the action of pressure, the gas flows to the air bag 443 wrapped outside the counterweight block. As the gas continues to flow in, the air bag 443 gradually inflates and the volume increases. When the air bag 443 reaches a certain threshold and the counterweight block 44 reaches the lowest point, the air bag 443 is subjected to the combined action of the buoyancy of the solution in the lifting groove 23 and the elastic force of the first spring 47 at the bottom of the piston plate 43, plus the pulling force generated by the patient's eyes when they are open. The resultant force causes the counterweight block 44 to slowly rise in the lifting groove 23. During the upward movement of the counterweight block 44, the gas in the air bag 443 flows back to the chamber below the piston plate 43, and the air bag 443 gradually contracts. When the counterweight block 44 rises through the locking block 46, the locking block 46 is pressed and retracted due to the slope on the outside of its bottom, causing the locking block 46 to reposition the piston plate 43. At the same time, the trigger lever 41 is reset under the action of related components, completing a complete cycle of auxiliary eyelid closure and opening.

[0035] Specific implementation cases: When using the device for assisting the patient in closing the upper and lower eyelids, the following steps are included: 1. Triggering stage When the patient's eyes close or blink, the upper fixed bar 31 attached to the patient's upper eyelid moves downward, thereby pulling the first pulling rope 54 connected to the middle of the upper fixed bar 31, which in turn moves the sliding rod 541 along the sliding groove 511 downward, triggering the lever trigger 5, which in turn triggers the trigger rod 41 to retract the locking block 46, thereby releasing the counterweight 44.

[0036] 2. Closing stage The counterweight 44 moves downward under its own gravity, thereby pulling the upper fixed bar 31 at both ends to move downward through the second pulling rope 442, thereby closing the upper and lower eyelids. In this process, the piston plate 43 moves downward in the counterweight box 42, pressing the gas in the chamber below the piston plate 43 to flow into the air bag 443, causing it to expand and generate buoyancy.

[0037] 3. Reset stage When the counterweight reaches the lowest point in the lifting groove 23, and the air bag 442 is filled to a certain threshold, the combined action of the buoyancy of the air bag in the solution in the lifting groove 23, the elastic force of the first spring 47, and the pulling force when the eyes are open causes the counterweight 44 to rise in the lifting groove 23. During the upward movement of the counterweight 44, the air bag 443 contracts and the gas flows back. When the counterweight 44 rises through the locking block 46, the locking block 46 is compressed and retracted due to the slope on the outside of its bottom, causing the locking block 46 to reposition the piston plate 43, and the trigger rod 41 is reset under the action of related components, completing a complete cycle of assisted eyelid closure and opening.

[0038] In summary, the patient's eyelid closure or blinking motion is used as the trigger source, the counterweight 44 is lowered to achieve eyelid closure through mechanical linkage, and the piston plate 43 compresses the gas to make the air bag 443 expand when the counterweight 44 sinks, combined with the buoyancy of the solution in the lifting groove 23, the elastic force of the first spring 47, and the pulling force of the patient's eyes open to achieve the cycle mechanism of the counterweight 44 resetting. For patients with basic blinking function, the above structure and mechanism achieve the overall solution of "assisted closure-automatic opening" coordinated action; and the solution of using the solution environment in the lifting groove 23 and the air bag 443 buffer design to reduce the risk of mechanical force damage to the eye during eyelid closure and opening.

[0039] The above specific embodiments further illustrate the purpose, technical solutions and benefits of the present application. It should be understood that the above is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A device for assisting a patient to close the eyelids, comprising a spectacle frame (1), and a spectacle leg (11) arranged on both sides of the spectacle frame and a nose pad (12) arranged in the middle of the spectacle frame, characterized in that, Also include: Eyelid fixing assembly (3) is installed in the inside of the glasses frame (1) through the mounting bracket (2), used for fitting on the upper and lower eyelids of the patient; Pulling mechanism, provided in the mounting bracket (2), the pulling mechanism is connected with the eyelid fixing assembly (3), used to drive the eyelid fixing assembly (3) to assist the patient to close and open the upper and lower eyelids.

2. The device of claim 1, wherein, The eyelid fixing assembly (3) comprises: Upper fixed strip (31) is connected to the pulling mechanism, used to pull the upper eyelid of the patient to close, and the upper magnetic strip (313) is arranged on the lower side of the upper fixed strip (31); The lower fixed strip (32) is connected with the two ends of the upper fixed strip (31) respectively, and the lower magnetic strip (321) corresponding to the upper magnetic strip (313) is arranged on the upper side of the lower fixed strip (32).

3. The device of claim 2, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be placed on the patient's forehead. The pulling mechanism comprises: Intermediate trigger assembly (5) is arranged in the inside of the top of the mounting bracket (2), and the intermediate trigger assembly (5) is connected with the middle part of the upper fixed strip (31) through the first pulling rope (54); Counterweight assembly (4) is arranged in the inside of the two sides of the mounting bracket (2), and is connected with the two ends of the intermediate trigger assembly (5) respectively, and the counterweight assembly (4) is connected with the two ends of the lower fixed strip (32).

4. The device of claim 3, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be placed on the patient's forehead. The intermediate trigger assembly (5) comprises: Triangular sliding block (51) is arranged in the middle part of the movable groove (21) of the top, and the upper end of the first pulling rope (54) is arranged in the sliding groove (511) in the triangular sliding block (51), and the sliding rod (541) is connected; Lever trigger piece is arranged on both sides of the triangular sliding block (51), and is abutted on the lower side of the two ends of the sliding rod (541).

5. The device of claim 4, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be placed on the patient's forehead. The lever trigger piece comprises: Flip plate (52) is rotatably connected in the movable groove (21), and the inner side end is below the sliding rod (541); Trigger plate (53) is rotatably connected in the movable groove (21), and the outer side end is abutted on the counterweight assembly (4), and the inner side end is abutted on the outer side end of the flip plate (52).

6. The device of claim 3, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be placed on the patient's forehead. The counterweight assembly (4) comprises: Counterweight box (42) is arranged in the counterweight groove (22) of the two sides of the mounting bracket (2), and the second pulling rope (442) is connected with the counterweight box (42), and the second pulling rope (442) is connected with the two ends of the upper fixed strip (31); Trigger rod (41) penetrates the top of the counterweight box (42), and is abutted on the locking block (46) of the two sides in the counterweight box (42), and the upper end of the trigger rod (41) is abutted on the intermediate trigger assembly (5).

7. The device of claim 6, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be positioned on the patient's forehead. The piston plate (43) is slidably connected in the counterweight box (42), the piston plate (43) is abutted on the locking block (46), and the first spring (47) is connected between the bottom of the piston plate (43) and the bottom of the counterweight box (42); The lower end of the second pull rope (442) penetrates the piston plate (43) and the bottom of the counterweight box (42) from top to bottom in sequence, and is connected with a counterweight (44), which is located in the lifting groove (23) at the bottom of the counterweight box (42).

8. The device of claim 7, wherein the device further comprises a second arm having a second end, the second end of the second arm being configured to be positioned on the patient's forehead. The lifting groove (23) is filled with a solution, and the counterweight (44) is placed in the solution in the lifting groove (23). The outer side of the counterweight (44) is wrapped with an air bag (443), the air bag (443) is connected with a flexible hose (441) wrapped outside the second pull rope (442), and the flexible hose (441) communicates with the bottom of the counterweight box (42).

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