Auxiliary device for eye fatigue detection

Abstract

The invention relates to the technical field of ophthalmology, in particular to an auxiliary device for eye fatigue detection. Comprising a support, the support is slidably connected with a lower jaw bracket, a forehead bracket and symmetrically distributed sliding frames, the sliding frames are located between the lower jaw bracket and the forehead bracket, the sliding frames are slidably connected with first sliding blocks, the first sliding blocks are slidably connected with second sliding blocks, the second sliding blocks are fixedly connected with arc-shaped sliding rails, and the arc-shaped sliding rails are fixedly connected with the forehead bracket. The arc-shaped sliding rail is connected with an arc-shaped sliding block in a sliding mode, the arc-shaped sliding block is provided with a mounting frame, the mounting frame is connected with a moving block in a sliding mode, and the moving block is fixedly connected with an upper clamping piece and a lower clamping piece. The upper clamping piece and the lower clamping piece replace a medical worker to turn over eyelids of a patient, the medical worker can turn over the upper eyelids and the lower eyelids of the patient under the condition that the slit lamp is used, the eyelids are turned over in a mechanical mode instead of a manual mode, and therefore the diagnosis time and difficulty of the medical worker are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmology, and in particular to an auxiliary device for detecting eye fatigue. Background Art

[0002] In ophthalmic clinical examinations, when medical staff use a slit lamp to evaluate eye fatigue, they not only need to use the slit lamp to check the congestion of the patient's eye surface (conjunctiva and cornea, etc.), but also need to manually open the patient's upper and lower eyelids for observation, and carefully observe the specific conditions of hidden areas such as the lacrimal glands, eyelid conjunctival corners and fornix. However, there is an operational contradiction between the above two steps. Medical staff cannot open the patient's eyelids while using the slit lamp for observation, so the two steps usually need to be performed separately. The detection process is cumbersome, and it is impossible to carefully observe the condition of the patient's eyelids with the help of the slit lamp. There is a possibility that the medical staff's naked eye observation accuracy is limited in the early stage of the lesion and it is difficult to detect the patient's subeyelid conjunctival lesions in time. In addition, according to The hospital infection control system stipulates that gloves need to be worn when touching the patient's eyes, but the tactile feedback decreases after wearing gloves, which affects the control of the eyelid opening force. Medical staff need to have very high operating proficiency to successfully open the patient's eyelids. If equipment needs to be operated or data needs to be recorded in the middle, repeatedly putting on and taking off gloves will further slow down the inspection pace. What's more troublesome is that some patients have psychological resistance to medical staff directly touching their eyelids with their limbs, which will cause patients to subconsciously close their eyes, resulting in difficulty in operation or operation failure. These three pain points are essentially derived from the phenomenon that the existing ophthalmic testing process is still overly dependent on the personal operation of medical staff. Therefore, in response to the above problems, the present invention proposes an auxiliary device for detecting eye fatigue. Summary of the invention

[0003] In order to overcome the shortcoming that medical staff cannot open the patient's eyelids for careful observation during slit lamp detection, the present invention provides an auxiliary device for detecting eye fatigue.

[0004] The technical solution is as follows: an auxiliary device for detecting eye fatigue, comprising a bracket, a chin support, a forehead support and a symmetrically distributed sliding frame slidably connected to the bracket, the sliding frame is located between the chin support and the forehead support, the sliding frame is slidably connected to a first sliding block, the first sliding block is slidably connected to a second sliding block, the second sliding block is fixedly connected to an arc slide rail, the arc slide rail is slidably connected to an arc slide block, the arc slide block is provided with a mounting bracket, the mounting bracket is slidably connected to a moving block, the moving block is fixedly connected to an upper clamping piece and a lower clamping piece, the upper clamping piece and the lower clamping piece are both made of elastic material, and the two are used together to clamp the patient's upper eyelid, the mounting bracket is fixedly connected to a limiting frame through a support rod, the limiting frame is used to limit the upper clamping piece and the lower clamping piece, and the forehead support is provided with a driving mechanism for driving the two moving blocks to work.

[0005] Preferably, the driving mechanism includes symmetrically distributed first pneumatic push rods, which are symmetrically distributed and are all fixedly connected to the forehead support seat, the telescopic ends of the first pneumatic push rods are fixedly connected to the adjacent sliding frame, the sliding frame is fixedly connected with a micro motor, the sliding frame is rotatably connected with a threaded rod, the threaded rod and the adjacent micro motor are transmitted through a gear set, the threaded rod is threadedly connected to the adjacent first sliding block, the first sliding block is fixedly connected with a second pneumatic push rod, the telescopic ends of the second pneumatic push rods are fixedly connected with a fixed block, the fixed block is fixedly connected to the arc slide rail, the mounting frame is fixedly connected with an electromagnet, the electromagnet and the moving block are magnetically attracted to each other, and a first elastic member is installed between the two, and the second sliding block is provided with a dragging component for driving the arc slide block to slide along the arc slide rail.

[0006] Preferably, the dragging assembly includes a third pneumatic push rod, which is fixedly connected to the adjacent second sliding block, the telescopic end of the third pneumatic push rod is fixedly connected to the first connecting block, the first connecting block is provided with a second connecting block, the second connecting block is slidably connected to the second sliding block, the second connecting block is fixedly connected to a traction rope, the traction rope penetrates the adjacent second sliding block and is fixedly connected to the adjacent arc-shaped sliding block, the lower part of the arc-shaped slide rail is fixedly connected to a magnetic part, and the magnetic part and the arc-shaped sliding block are magnetically attracted to each other.

[0007] Preferably, the first connection block is fitted with the second connection block, the first connection block and the second connection block are both permanent magnets, and the first connection block and the second connection block are magnetically attracted to each other.

[0008] Preferably, the limiting frame is elastic.

[0009] Preferably, the limit frame is slidably connected with a first pull rope and a second pull rope, a second elastic member is installed between the first pull rope and the adjacent limit frame, a third elastic member is installed between the second pull rope and the adjacent limit frame, the first pull rope is fixedly connected to the side of the adjacent upper clamping plate away from the adjacent moving block, the second pull rope is fixedly connected to the side of the adjacent lower clamping plate away from the adjacent moving block, and the first pull rope and the second pull rope jointly open the adjacent upper clamping plate and the adjacent lower clamping plate.

[0010] Preferably, a columnar portion is provided on a side of the upper clamping piece away from the adjacent moving block, the columnar portion is used to abut against the outside of the upper eyelid, and a connection between the upper clamping piece and the first pull rope is located at the columnar portion.

[0011] Preferably, the cylindrical portion of the upper clamping piece is provided with symmetrically distributed cavities, and the cross-section of the cavities is elliptical.

[0012] Preferably, a clamping portion is provided on a side of the lower clamping piece away from the adjacent moving block, the clamping portion is provided with grooves distributed at intervals, and a connection point between the lower clamping piece and the second pull rope is located at the clamping portion.

[0013] Preferably, a symmetrically distributed extrusion plate is fixedly connected to one side of the fixed block close to the adjacent arc-shaped slide rail, the mounting frame is provided with an extrusion portion, the mounting frame is slidably connected to the arc-shaped slide block, a fourth elastic member is installed between the extrusion portion and the arc-shaped slide block, and the symmetrically distributed extrusion plates are used together to extrude the adjacent extrusion portions, so that the mounting frame is offset upward during the swinging process.

[0014] The beneficial effects of the present invention are as follows: the present invention uses the upper clamping plate and the lower clamping plate to replace the medical staff in opening the patient's eyelids, so that the medical staff can open the patient's upper eyelids and lower eyelids when using a slit lamp to perform a more detailed examination. The eyelids are opened mechanically instead of manually, which reduces the steps of the medical staff's examination, thereby saving the medical staff's time and difficulty in making a diagnosis.

[0015] The present invention automatically releases the connection between the first connecting block and the second connecting block when the patient subconsciously blinks, and promptly stops the step of turning over the upper eyelid, thereby more effectively reducing the possibility of eyelid injury to the patient and improving the patient's experience when receiving examination.

[0016] The present invention uses an extrusion plate to extrude the extrusion part when the upper clamping piece and the lower clamping piece rotate to a nearly vertical state, and the extrusion part drives the upper clamping piece, the lower clamping piece and the patient's upper eyelid to deviate upward, making it easier for medical staff to examine the patient's eyelid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the chin support seat, forehead support seat and sliding frame of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the sliding frame, the first sliding block and the second sliding block of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the sliding frame and the micro motor of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the arc-shaped slide rail and the arc-shaped slide block of the present invention; Figure 6 is a cross-sectional view of a first sliding block and a second sliding block of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the first connecting block and the second connecting block of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the upper clamping piece and the lower clamping piece of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the upper clamping piece and the lower clamping piece after being clamped in the present invention.

[0019] Explanation of the reference numerals: 1: bracket, 2: chin support, 3: forehead support, 31: first pneumatic push rod, 4: sliding frame, 41: micro motor, 42: threaded rod, 5: first sliding block, 51: second pneumatic push rod, 52: fixed block, 53: extrusion plate, 6: second sliding block, 61: third pneumatic push rod, 62: first connecting block, 63: second connecting block, 64: traction rope, 7: arc-shaped slide rail, 8: arc-shaped slider, 81: magnetic part, 9: mounting frame, 92: extrusion part, 91: electromagnet, 10: moving block, 11: upper clamping plate, 111: first pull rope, 112: columnar part, 113: cavity, 12: lower clamping plate, 121: second pull rope, 122: clamping part, 13: limit frame. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] Embodiment 1: This embodiment provides an auxiliary device for detecting eye fatigue, which is used to replace the support frame on the existing slit lamp that supports the patient's head. Therefore, during the process of using the slit lamp for detection, the patient's upper and lower eyelids can also be turned over synchronously for detection, thereby reducing the time required for detection and increasing the accuracy of medical staff in observing hidden areas such as the patient's lacrimal glands, eyelid conjunctival corners and dome through the slit lamp.

[0022] refer to Figure 1-Figure 9 The auxiliary device includes a bracket 1 and a remote control device (refer to Figure 1 The remote control device is an existing device, which is used to remotely control the power-on controls of the device to work. The bracket 1 is slidably connected with the lower jaw support 2, the forehead support 3 and the symmetrically distributed sliding frame 4 (refer to Figure 2 and Figure 3), the sliding frame 4 is located between the chin support seat 2 and the forehead support seat 3, the chin support seat 2 is used to support the patient's chin, and the forehead support seat 3 provides support for the patient's head by supporting the patient's forehead. The chin support seat 2 and the forehead support seat 3 are both provided with a locking device (using an existing device) to lock the relative position between themselves and the bracket 1, which is used to adjust the positions of the chin support seat 2 and the forehead support seat 3 according to the head sizes of different patients. The front side of the sliding frame 4 is slidably connected to a first sliding block 5, the first sliding block 5 is slidably connected to a second sliding block 6, the front side of the second sliding block 6 is fixedly connected to an arcuate slide rail 7, and the arcuate slide rail 7 is slidably connected to an arcuate slider 8 (refer to Figure 6 and Figure 7 ), when the arc-shaped slide block 8 slides along the arc-shaped slide rail 7, it moves along the arc-shaped track. The arc-shaped slide block 8 is provided with a mounting frame 9, and the mounting frame 9 is slidably connected to a moving block 10. The rear side of the moving block 10 is fixedly connected to an upper clamping piece 11 and a lower clamping piece 12 (refer to Figure 7 ), the upper clamping piece 11 and the lower clamping piece 12 are both made of silicone (or flexible resin material), which are used to increase the friction between the two and the patient's skin, and reduce the possibility of allergies when the patient contacts them. There is a gap between the rear end of the upper clamping piece 11 and the rear end of the lower clamping piece 12 in the initial state. The upper clamping piece 11 and the lower clamping piece 12 are used together to clamp the patient's upper eyelid, or to open the patient's lower eyelid by squeezing the skin under the patient's lower eyelid downward. The mounting frame 9 is fixedly connected to the limiting frame 13 through a support rod. The limiting frame 13 is used to limit the upper clamping piece 11 and the lower clamping piece 12. A driving mechanism for driving the two moving blocks 10 to work is provided on the forehead support seat 3.

[0023] The above arrangement can be realized that, when the upper clamping piece 11 and the lower clamping piece 12 are pressed against the patient's upper eyelid, the moving block 10 drives the upper clamping piece 11 and the lower clamping piece 12 to move forward, so that the rear parts of the upper clamping piece 11 and the lower clamping piece 12 move forward, and then the upper clamping piece 11 and the lower clamping piece 12 are constrained by the limit frame 13, and gradually approach and clamp the patient's upper eyelid; when the upper clamping piece 11 and the lower clamping piece 12 are needed to open the patient's lower eyelid, only the upper clamping piece 11 and the lower clamping piece 12 need to be used to press against the patient's lower eyelid, so that the upper clamping piece 11 and the lower clamping piece 12 move downward, and then pull the patient's lower eyelid open; Fig. 9 Taking the main viewing angle as an example, the arc center of the arc-shaped slide rail 7 is located at the upper part of the left side of the upper clamping piece 11 .

[0024] Reference Figure 3-Figure 8The driving mechanism includes two first pneumatic push rods 31 symmetrically distributed on the left and right sides, and the two first pneumatic push rods 31 are respectively fixed to the left and right sides of the forehead support seat 3 (the first pneumatic push rods 31 are existing micro pneumatic telescopic rods), and the telescopic ends of the first pneumatic push rods 31 are fixed to the adjacent sliding frame 4, which is used to drive the sliding frame 4 to move up and down relative to the forehead support seat 3. A micro motor 41 is fixed in the sliding frame 4, and a threaded rod 42 is rotatably connected to one side of the sliding frame 4 close to the adjacent first sliding block 5. The threaded rod 42 and the adjacent micro motor 41 are driven by a gear set (refer to Figure 3 ), the threaded rod 42 is threadedly connected to the adjacent first sliding block 5, a second pneumatic push rod 51 is fixedly connected in the first sliding block 5 (the second pneumatic push rod 51 is an existing micro-pneumatic telescopic rod), the telescopic end of the second pneumatic push rod 51 is fixedly connected to a fixed block 52, the fixed block 52 is fixedly connected to the arc-shaped slide rail 7, and the mounting frame 9 is fixedly connected to an electromagnet 91 (refer to Figure 8 ), the moving block 10 is made of ferromagnetic material, the spring on the moving block 10 is made of non-magnetic material, the electromagnet 91 and the moving block 10 are magnetically attracted to each other, and a first elastic member is installed between the two, the first elastic member is a spring, and a dragging component for driving the arc-shaped slider 8 to slide along the arc-shaped slide rail 7 is provided on the second sliding block 6.

[0025] The above arrangement can be realized, that is, the first pneumatic push rod 31 drives the adjacent sliding frame 4 to move up and down, thereby driving the upper clamping plate 11 and the lower clamping plate 12 to move up and down, the micro motor 41 drives the threaded rod 42 to rotate through the gear set, thereby driving the adjacent first sliding block 5 to move left and right, and finally making the upper clamping plate 11 and the lower clamping plate 12 move left and right, and the second pneumatic push rod 51 drives the adjacent fixed block 52, the adjacent arc-shaped slide rail 7, and the adjacent second sliding block 6 to move forward and backward, thereby driving the upper clamping plate 11 and the lower clamping plate 12 to move forward and backward, so that the upper clamping plate 11 and the lower clamping plate 12 are in contact with or away from the patient's eyelids.

[0026] Reference Figure 6 and Figure 7The dragging assembly includes a third pneumatic push rod 61 (the third pneumatic push rod 61 is an existing micro-pneumatic telescopic rod, and its telescopic end is in an extended state when not in operation), the third pneumatic push rod 61 is fixedly connected to the adjacent second sliding block 6, the telescopic end of the third pneumatic push rod 61 is slidably connected to the adjacent second sliding block 6, the telescopic end of the third pneumatic push rod 61 is fixedly connected to the first connecting block 62, and the first connecting block 62 is provided with a second connecting block 63. In this embodiment, the two are regarded as fixedly connected, and the second connecting block 63 is slidably connected to the second sliding block 6 The first connecting block 62 and the second connecting block 63 are coaxial and both are located in the adjacent second sliding block 6. A traction rope 64 is fixedly connected to the side of the second connecting block 63 away from the adjacent first connecting block 62. The traction rope 64 is a wear-resistant composite rope or a soft steel wire rope. The traction rope 64 penetrates the adjacent second sliding block 6 and is fixedly connected to the adjacent arc-shaped sliding block 8. A magnetic part 81 is fixedly connected to the lower part of the arc-shaped sliding rail 7. The arc-shaped sliding rail 8 is made of ferromagnetic material. The magnetic part 81 and the arc-shaped sliding rail 8 are magnetically attracted to each other, so as to keep the arc-shaped sliding rail 8 and the arc-shaped sliding rail 7 in a relatively static state.

[0027] The above arrangement can achieve that the third pneumatic push rod 61 moves by dragging the first connecting block 62 and the second connecting block 63 , so that the second connecting block 63 drags the adjacent arc-shaped sliding block 8 to slide along the adjacent arc-shaped sliding rail 7 through the traction rope 64 .

[0028] The above setup works like this: The medical staff first adjusts the positions of the chin support 2 and the forehead support 3 according to the size of the patient's head. The patient then places his chin on the chin support 2 and then his head on the forehead support 3, and follows the instructions of the medical staff to prepare for examination.

[0029] The medical staff first examines the surface of the patient's eyeball with a slit lamp, and then prepares to examine the patient's upper and lower eyelids. Taking the examination of the patient's upper eyelid as an example, the medical staff tells the patient to close his eyes and keep looking down. Then the medical staff respectively operates the first pneumatic push rod 31, the micro motor 41 and the second pneumatic push rod 51 through the remote control device, and controls the two sets of second sliding blocks 6, the arc slide rail 7, the arc slide block 8, the mounting frame 9, the moving block 10, the upper clamping piece 11 and the lower clamping piece 12 to move in the above manner, so that the upper clamping pieces 11 and the lower clamping pieces 12 on both sides are respectively in contact with the two upper eyelids of the patient and keep in contact (refer to Figure 8), then the medical staff turns off the first pneumatic push rod 31, the micro motor 41, and the second pneumatic push rod 51, and activates the two electromagnets 91 through the remote control device. The two electromagnets 91 respectively attract the adjacent moving blocks 10 to move forward, and the first elastic member on the moving block 10 is compressed and stored. The moving block 10 drags the upper clamping piece 11 and the lower clamping piece 12 to move forward together, so that the rear part of the upper clamping piece 11 and the rear part of the lower clamping piece 12 gradually move into the limit frame 13. The rear part of the upper clamping piece 11 and the rear part of the lower clamping piece 12 approach each other during the movement and clamp the patient's upper eyelid (refer to Fig. 9 ).

[0030] After the medical staff clamps the patient's upper eyelid with the upper clamping piece 11 and the lower clamping piece 12, they start the third pneumatic push rod 61 to retract the telescopic end of the third pneumatic push rod 61, and the telescopic end of the third pneumatic push rod 61 drives the first connecting block 62 and the second connecting block 63 to move together, and the second connecting block 63 drags the traction rope 64 into the second sliding block 6, and the traction rope 64 drags the arc-shaped sliding block 8 to slide upward along the adjacent arc-shaped slide rail 7, and the arc-shaped sliding block 8 overcomes the magnetic force between itself and the magnetic part 81, and breaks away from the relative static state between itself and the adjacent arc-shaped slide rail 7, and the arc-shaped sliding block 8 drives the mounting frame 9, the moving block 10, the upper clamping piece 11 and the lower clamping piece 12 to rotate with the upper part of the rear side of the upper clamping piece 11 as the rotation center, so as to move the The patient's upper eyelid is turned up, and the medical staff observes the patient's upper eyelid through a slit lamp. After the observation, the medical staff controls the telescopic end of the third pneumatic push rod 61 to move and reset through the remote control device, and the arc-shaped slider 8 drives the mounting frame 9, the moving block 10, the upper clamping plate 11 and the lower clamping plate 12 to move downward and reset under the action of gravity, and drives the patient's upper eyelid to reset, and the arc-shaped slider 8 is attracted by the magnetic part 81 again. Then the medical staff turns off the electromagnet 91 and the third pneumatic push rod 61, and the moving block 10 is no longer attracted by the magnetic force of the adjacent electromagnet 91. The moving block 10 moves and resets under the elastic force of the first elastic part thereon, and the upper clamping plate 11 and the lower clamping plate 12 move backward and release the patient's upper eyelid.

[0031] When the medical staff needs to check the patient's lower eyelid, the medical staff only needs to operate the first pneumatic push rod 31, the micro motor 41 and the second pneumatic push rod 51 through the remote control device, so that the upper clamping plate 11 and the lower clamping plate 12 on both sides are in contact with the skin on the lower side of the patient's lower eyelid respectively. Then the medical staff turns off the micro motor 41 and the second pneumatic push rod 51, and controls the telescopic end of the first pneumatic push rod 31 to continue to drive the adjacent sliding frame 4 to move downward, so that the upper clamping plate 11 and the lower clamping plate 12 squeeze the skin on the lower side of the patient's lower eyelid and move downward, and pull the patient's lower eyelid open. Then the medical staff turns off the first pneumatic push rod 31 and checks the patient's lower eyelid. When the medical staff finishes the inspection, they control the upper clamping plate 11 and the lower clamping plate 12 to move and reset, and the patient's lower eyelid is naturally reset, completing the entire inspection process.

[0032] Embodiment 2: This embodiment further discloses an auxiliary device for detecting eye fatigue based on the embodiment 1. Compared with the embodiment 1, this embodiment has the function of stopping dragging the patient's upper eyelid upward in time when the patient feels uncomfortable and blinks subconsciously.

[0033] Reference Figure 6 and Figure 7 In this embodiment, the first connection block 62 and the second connection block 63 are no longer considered to be fixedly connected, but are fitted to each other. The first connection block 62 and the second connection block 63 are both permanent magnets, and the first connection block 62 and the second connection block 63 are magnetically attracted to each other.

[0034] The above arrangement can be realized that the first connecting block 62 drives the second connecting block 63 to slide relative to the second sliding block 6 through magnetic force, thereby realizing the functions of the first connecting block 62 and the second connecting block 63 in Example 1. After the upper clamping piece 11 and the lower clamping piece 12 clamp the patient's upper eyelid, the third pneumatic push rod 61 moves upward together through the first connecting block 62, the second connecting block 63, the traction rope 64, the arc-shaped slider 8, the mounting frame 9, the moving block 10, the upper clamping piece 11 and the lower clamping piece 12 to turn the patient's upper eyelid open. If the patient subconsciously blinks reflexively at this time, the patient's upper eyelid applies a downward force to the upper clamping piece 11 and the lower clamping piece 12. When the force is greater than the force of the first connecting block 62 and the second connecting block 6 3, the first connecting block 62 is separated from the second connecting block 63, and the second connecting block 63, the traction rope 64, the arc-shaped slider 8, the mounting frame 9, the moving block 10, the upper clamping piece 11 and the lower clamping piece 12 are moved downward and reset under the drive of the patient's upper eyelid, and the patient's upper eyelid will not be forcibly dragged, thereby reducing the probability of the patient's upper eyelid being strained. At this time, because the upper clamping piece 11 and the lower clamping piece 12 are still clamped on the patient's upper eyelid, the medical staff can directly operate the telescopic end of the third pneumatic push rod 61 to extend it again after comforting the patient, and retract it again after the first connecting block 62 and the second connecting block 63 are magnetically attracted again, and the patient's upper eyelid is pulled open again without repeating the above-mentioned steps of clamping the patient's upper eyelid.

[0035] Embodiment 3: Based on Example 1, this embodiment further discloses an auxiliary device for detecting eye fatigue. Compared with Example 1, under the premise of maintaining the force of clamping the patient's upper eyelid, it has the effect of reducing the clamping force of the upper clamping plate 11 and the lower clamping plate 12 on the patient's eyelid, thereby reducing the probability of the two pinching and hurting the patient's upper eyelid.

[0036] Reference Figure 8 and Fig. 9The limiting frame 13 is elastic. Therefore, when the patient's eyelid thickness is thicker than that of normal people, even if the upper clamping piece 11 and the lower clamping piece 12 clamp the thicker upper eyelid and drag the upper eyelid into the limiting frame 13, the limiting frame 13 will not be deformed due to the squeezing of the upper eyelid, and will not cause hard squeezing of the patient's upper eyelid.

[0037] Reference Figure 8 The upper and lower sides of the limit frame 13 are respectively slidably connected with the first pull rope 111 and the second pull rope 121 through the sliding plate, a second elastic member is installed between the first pull rope 111 and the adjacent limit frame 13, the second elastic member is a tension spring, a third elastic member is installed between the second pull rope 121 and the adjacent limit frame 13, the third elastic member is a tension spring, the first pull rope 111 is fixedly connected to the side of the adjacent upper clamping piece 11 away from the adjacent moving block 10, the second pull rope 121 is fixedly connected to the side of the adjacent lower clamping piece 12 away from the adjacent moving block 10, the first pull rope 111 and the second pull rope 121 jointly open the adjacent upper clamping piece 11 and the adjacent lower clamping piece 12.

[0038] The above arrangement can achieve that the first pull rope 111 and the second pull rope 121, under the action of the second elastic member and the third elastic member respectively, drag the ends of the upper clamping plate 11 and the lower clamping plate 12 toward the mounting frame 9, thereby making a larger gap between the rear parts of the upper clamping plate 11 and the rear parts of the lower clamping plate 12 in the non-working state, making it easier for the upper clamping plate 11 and the lower clamping plate 12 to clamp the patient's eyelids.

[0039] Embodiment 4: This embodiment further discloses an auxiliary device for detecting eye fatigue on the basis of the embodiment 3. Compared with the embodiment 3, this embodiment has the function of assisting the upper clamping piece 11 and the lower clamping piece 12 to flip the upper eyelid of the patient upward.

[0040] Reference Figure 8 and Fig. 9 The rear side of the upper clamping piece 11 is provided with a columnar portion 112, which is used to abut against the upper part of the upper eyelid, so that when the upper clamping piece 11 and the lower clamping piece 12 are in the process of turning the upper eyelid upward, the probability of the patient's upper eyelid moving upward with the front end of the upper clamping piece 11 and the lower clamping piece 12 is reduced because the upper eyelid is not squeezed and rubbed, so as to Fig. 9 For reference, the arc center of the arc-shaped slide rail 7 is located at the rear side of the columnar portion 112 , and the connection between the upper clamping piece 11 and the first pull rope 111 is located at the columnar portion 112 .

[0041] Reference Figure 7 and Figure 8 The cylindrical portion 112 of the upper clamping piece 11 is provided with cavities 113 symmetrically distributed up and down, and the cross section of the cavity 113 is elliptical. Figure 8Taking the state of the middle columnar portion 112 as an example, the columnar portion 112 is less likely to deform when subjected to a force in the front-rear direction. When the columnar portion 112 is subjected to a force in the up-down direction, the cavity 113 shrinks, causing the columnar portion 112 to be compressed and deformed.

[0042] The above arrangement can achieve that, after the upper clamping piece 11 and the lower clamping piece 12 clamp the patient's upper eyelid, the cylindrical portion 112 on the upper clamping piece 11 squeezes the skin on the upper part of the patient's upper eyelid, and then the upper clamping piece 11 and the lower clamping piece 12 flip the patient's upper eyelid from bottom to top, and the cylindrical portion 112 squeezes the skin on the upper part of the patient's upper eyelid. The skin on the upper part of the patient's upper eyelid can only be driven by the clamped part and gradually fits with the surface of the cylindrical portion 112, thereby making it easier to flip the patient's upper eyelid. When the upper clamping piece 11 and the lower clamping piece 12 are rotated to a nearly vertical state, the cavity 113 on the cylindrical portion 112 is squeezed and deformed by the patient's skin, and the cylindrical portion 112 collapses, thereby making the flipped upper eyelid closer to a state of fitting the patient's eye, which is easier for medical staff to observe. When the upper clamping piece 11 and the lower clamping piece 12 release the patient's upper eyelid, the cylindrical portion 112 is no longer squeezed and returns to its original state.

[0043] Embodiment 5: This embodiment further discloses an auxiliary device for detecting eye fatigue on the basis of Embodiment 4. Compared with Embodiment 4, this embodiment has the function of assisting the upper clamping piece 11 and the lower clamping piece 12 to flip the upper eyelid of the patient upward.

[0044] Reference Figure 7-Figure 9 A clamping portion 122 is provided at the rear of the lower clamping piece 12 , and grooves distributed at intervals are provided on the upper side of the clamping portion 122 , which are used to clamp the patient's upper eyelid. The connection between the lower clamping piece 12 and the second pull rope 121 is located at the clamping portion 122 .

[0045] The above-mentioned arrangement can achieve that, when the upper clamping plate 11 and the lower clamping plate 12 jointly clamp the patient's eyelids, the lower clamping plate 12 clamps part of the patient's eyelid by reducing the groove on the clamping portion 122, thereby increasing the contact area between the patient's eyelid skin and the clamping portion 122, thereby increasing the holding force of the upper clamping plate 11 and the lower clamping plate 12 on the patient's eyelids.

[0046] Embodiment 6: This embodiment further discloses an auxiliary device for detecting eye fatigue based on the embodiment 1. Compared with the embodiment 1, this embodiment has the function of assisting the upper clamping piece 11 and the lower clamping piece 12 to pull the upper eyelid of the patient upward.

[0047] Reference Figure 5-Figure 8Two extrusion plates 53 symmetrically distributed on the left and right are fixed to the front side of the fixed block 52. The mounting frame 9 is provided with an extrusion portion 92. A fourth elastic member is installed between the extrusion portion 92 and the arc-shaped slider 8. The fourth elastic member is a tension spring. The mounting frame 9 is slidably connected to the arc-shaped slider 8. The symmetrically distributed extrusion plates 53 are used together to extrude adjacent extrusion portions 92, so that the mounting frame 9 is offset upward during the swinging process.

[0048] The above arrangement can be realized, when the squeezing portion 92 contacts the squeezing plate 53 during the process of the mounting frame 9 swinging upward following the arc-shaped slider 8, the squeezing portion 92 is squeezed and moved upward by the squeezing plate 53. At this time, the upper clamping piece 11 and the lower clamping piece 12 have flipped the patient's upper eyelid to a nearly vertical state, and the squeezing portion 92 drives the mounting frame 9, the moving block 10, the upper clamping piece 11 and the lower clamping piece 12 to move upward together, thereby pulling the patient's upper eyelid upward, making it easier for medical staff to observe the patient's eyelid condition.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary device for detecting eye fatigue, characterized in that: The invention comprises a bracket (1), the bracket (1) being slidably connected to a lower jaw support seat (2), a forehead support seat (3) and a symmetrically distributed sliding frame (4), the sliding frame (4) being located between the lower jaw support seat (2) and the forehead support seat (3), the sliding frame (4) being slidably connected to a first sliding block (5), the first sliding block (5) being slidably connected to a second sliding block (6), the second sliding block (6) being fixedly connected to an arcuate slide rail (7), the arcuate slide rail (7) being slidably connected to an arcuate slide block (8), the arcuate slide block (8) being provided with a mounting frame (9), The mounting frame (9) is slidably connected to a moving block (10), and the moving block (10) is fixedly connected to an upper clamping piece (11) and a lower clamping piece (12), and the upper clamping piece (11) and the lower clamping piece (12) are both made of elastic material, and are used together to clamp the upper eyelid of the patient. The mounting frame (9) is fixedly connected to a limiting frame (13) via a support rod, and the limiting frame (13) is used to limit the upper clamping piece (11) and the lower clamping piece (12). A driving mechanism for driving the two moving blocks (10) to work is provided on the forehead support seat (3).

2. The auxiliary device for detecting eye fatigue according to claim 1, characterized in that: The driving mechanism comprises symmetrically distributed first pneumatic push rods (31), the symmetrically distributed first pneumatic push rods (31) are all fixedly connected to the forehead support seat (3), the telescopic ends of the first pneumatic push rods (31) are fixedly connected to the adjacent sliding frame (4), the sliding frame (4) is fixedly connected to a micro motor (41), the sliding frame (4) is rotatably connected to a threaded rod (42), the threaded rod (42) and the adjacent micro motor (41) are driven by a gear set, the threaded rod (42) and the adjacent first sliding block (5 ) are threadedly connected, the first sliding block (5) is fixedly connected to a second pneumatic push rod (51), the telescopic end of the second pneumatic push rod (51) is fixedly connected to a fixed block (52), the fixed block (52) is fixedly connected to the arc-shaped slide rail (7), the mounting frame (9) is fixedly connected to an electromagnet (91), the electromagnet (91) and the moving block (10) are magnetically attracted to each other, and a first elastic member is installed between the two, and the second sliding block (6) is provided with a dragging component for driving the arc-shaped slider (8) to slide along the arc-shaped slide rail (7).

3. The auxiliary device for detecting eye fatigue according to claim 2, characterized in that: The dragging assembly comprises a third pneumatic push rod (61), the third pneumatic push rod (61) is fixedly connected to the adjacent second sliding block (6), the telescopic end of the third pneumatic push rod (61) is fixedly connected to the first connecting block (62), the first connecting block (62) is provided with a second connecting block (63), the second connecting block (63) is slidably connected to the second sliding block (6), the second connecting block (63) is fixedly connected to a traction rope (64), the traction rope (64) penetrates the adjacent second sliding block (6) and is fixedly connected to the adjacent arc-shaped sliding block (8), the lower part of the arc-shaped sliding rail (7) is fixedly connected to a magnetic part (81), and the magnetic part (81) and the arc-shaped sliding block (8) are magnetically attracted to each other.

4. The auxiliary device for detecting eye fatigue according to claim 3, characterized in that: The first connection block (62) and the second connection block (63) are fitted together, the first connection block (62) and the second connection block (63) are both permanent magnets, and the first connection block (62) and the second connection block (63) are magnetically attracted to each other.

5. The auxiliary device for detecting eye fatigue according to claim 1, characterized in that: The limiting frame (13) is elastic.

6. The auxiliary device for detecting eye fatigue according to claim 5, characterized in that: The limit frame (13) is slidably connected to a first pull rope (111) and a second pull rope (121); a second elastic member is installed between the first pull rope (111) and the adjacent limit frame (13); a third elastic member is installed between the second pull rope (121) and the adjacent limit frame (13); the first pull rope (111) is fixedly connected to a side of the adjacent upper clamping plate (11) away from the adjacent moving block (10); the second pull rope (121) is fixedly connected to a side of the adjacent lower clamping plate (12) away from the adjacent moving block (10); the first pull rope (111) and the second pull rope (121) jointly open the adjacent upper clamping plate (11) and the adjacent lower clamping plate (12).

7. The auxiliary device for detecting eye fatigue according to claim 6, characterized in that: A columnar portion (112) is provided on a side of the upper clamping piece (11) away from the adjacent moving block (10), the columnar portion (112) being used to abut against the outside of the upper eyelid, and a connection point between the upper clamping piece (11) and the first pull rope (111) is located at the columnar portion (112).

8. The auxiliary device for detecting eye fatigue according to claim 7, characterized in that: The columnar portion (112) of the upper clamping plate (11) is provided with symmetrically distributed cavities (113), and the cross-section of the cavities (113) is elliptical.

9. The auxiliary device for detecting eye fatigue according to claim 7, characterized in that: A clamping portion (122) is provided on a side of the lower clamping piece (12) away from the adjacent moving block (10), the clamping portion (122) being provided with grooves distributed at intervals, and a connection point between the lower clamping piece (12) and the second pull rope (121) is located at the clamping portion (122).

10. The auxiliary device for detecting eye fatigue according to claim 3, characterized in that: A symmetrically distributed extrusion plate (53) is fixedly connected to one side of the fixed block (52) close to the adjacent arc-shaped slide rail (7); the mounting frame (9) is provided with an extrusion portion (92); the mounting frame (9) is slidably connected to the arc-shaped slide block (8); a fourth elastic member is installed between the extrusion portion (92) and the arc-shaped slide block (8); the symmetrically distributed extrusion plates (53) are used together to extrude the adjacent extrusion portions (92), so that the mounting frame (9) deflects upward during the swinging process.

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