Ophthalmic examination device

Abstract

The present invention provides an ophthalmic examination device, which belongs to the technical field of ophthalmic examination. It comprises a base, one side of the base is fixedly connected to a T-shaped mounting frame, the top of the T-shaped mounting frame is fixedly connected to a support frame, a mandibular support plate and a forehead support plate are sequentially installed on the support frame from bottom to top, and an auxiliary component is used to assist the patient to open his eyes, and the auxiliary component is connected to the mandibular support plate and the forehead support plate respectively. The present invention provides an auxiliary component, and the operator can manually adjust the auxiliary component to assist the patient to open his eyes. The auxiliary component can adjust the angle and strength of the patient's eyes to meet the needs of different patients and improve the comfort of the patient's eyes. The auxiliary component does not require the operator to manually hold the patient's eyes open during the process of opening the patient's eyes, and it can be completed independently by the mechanical structure. Such a setting can not only improve the efficiency of slit lamp examination, but also reduce the difficulty of the operator in examining patients with difficulty opening their eyes.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmological examination, and in particular to an ophthalmological examination device. Background Art

[0002] The slit lamp microscope is a commonly used clinical examination instrument in ophthalmology. It can magnify 6-40 times to examine eye lesions. It can not only make superficial lesions very clear, but also adjust the focus, point and light source width to form an optical section, and identify the hierarchical structure of deep tissues and the anterior and posterior positions of lesions.

[0003] When examining a patient with the aid of a slit lamp, the patient needs to open his eyes and cooperate with the examination. During the examination, the patient's eyes need to be illuminated by light, and the intensity and type of light need to be switched according to the examination process. This examination method makes it inconvenient for patients who are sensitive to light to open their eyes. In particular, for some patients who already have eye diseases, it becomes even more difficult to open their eyes during the examination. In order to solve the above problem, the examiner often needs to assist the patient to open his eyes for testing. However, the examiner controls the slit lamp while assisting the operator to open his eyes, which causes the examination time to be longer, reducing the efficiency and convenience of using the slit lamp. Therefore, the present invention provides an ophthalmic examination device to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an ophthalmic examination device by setting an auxiliary component. The operator can manually adjust the auxiliary component to assist the patient to open his eyes. The auxiliary component can adjust the angle and strength of the patient's eyes to meet the needs of different patients and improve the comfort of the patient's eyes. During the process of the auxiliary component opening the patient's eyes, the operator does not need to manually hold it all the time, nor does the patient need to cooperate. It is completed independently by the mechanical structure. Such a setting can not only improve the efficiency of slit lamp examination, but also reduce the difficulty of the operator in examining patients with difficulty opening their eyes. The above setting can solve the problem of low efficiency in examining patients with difficulty opening their eyes during the use of slit lamps at this stage.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An ophthalmic examination device comprises a base, an observation mechanism and an illumination mechanism are installed on the top of the base, the observation mechanism is used to observe the patient's eyes, and the illumination mechanism is used to provide a lighting environment for the patient's eyes, a T-shaped mounting frame is fixedly connected to one side of the base, the top of the T-shaped mounting frame is fixedly connected to a support frame, a mandibular support plate and a forehead support plate are sequentially installed on the support frame from bottom to top, a lifting adjustment mechanism is slidably connected to the support frame, and the lifting adjustment mechanism is used to adjust the height of the mandibular support plate; an auxiliary component, the auxiliary component is used to assist the patient to open his eyes, and the auxiliary component is respectively connected to the mandibular support plate and the forehead support plate.

[0007] Optionally, the auxiliary component includes an adjusting disk rotatably connected to the top of the mandibular support plate, one side of the adjusting disk is fixedly connected to a rotating rod, the bottom of the rotating rod passes through and is inserted into the mandibular support plate, the end of the rotating rod away from the adjusting disk is fixedly connected to a positioning rod, and the adjusting disk is inserted with an insertion rod. The auxiliary component also includes a U-shaped rod fixedly connected to the outer wall of the forehead support plate, the U-shaped rod is slidably connected to a positioning plate, the bottom of the positioning plate is fixedly connected to an arc plate, and the bottom of the arc plate is fixedly connected to an extrusion plate.

[0008] Optionally, a plurality of adjustment holes are provided on the mandibular support plate, and a plurality of insertion holes are provided on the adjustment disk, and the sizes of the adjustment holes and the insertion holes are consistent with the sizes of the insertion rod.

[0009] Optionally, a bending portion is fixedly connected to the middle position of the positioning rod, and an outward-turned portion is fixedly connected to the end of the positioning rod. The bending portion and the outward-turned portion both have arc-shaped contours, and the bending directions of the bending portion and the arc-shaped contours of the outward-turned portion are opposite. The positioning rod, the bending portion and the outward-turned portion are an integrally formed structure, and a weakening groove is provided on the bending portion.

[0010] Optionally, the U-shaped rod has a "U"-shaped profile, and a first adjustment rod and a second adjustment rod are respectively installed at both ends of the U-shaped rod. The positioning plate is connected to the U-shaped rod through the first adjustment rod, and the U-shaped rod and the forehead support plate are fixed by screws.

[0011] Optionally, the positioning plate is fixedly connected to a side of the first adjusting rod, the adjusting rod has a "C"-shaped profile, a straight slide groove is provided on the adjusting rod, and the straight slide groove extends to the bottom of the adjusting rod, and the adjusting rod has several side slide grooves from top to bottom, and the side slide grooves are connected to the straight slide groove. A rotating block is rotatably connected to the first adjusting rod, and a rod body with an "L"-shaped profile is installed on the outer wall of the rotating block, and the rod body with an "L"-shaped profile is inserted into the straight slide groove.

[0012] Optionally, the positioning plate is fixedly connected to a limiting slide on one side close to the second adjusting rod, and a limiting slide groove corresponding to the position of the limiting slide is provided on the forehead support plate. The limiting slide passes through the forehead support plate and is inserted into the limiting slide groove, and lightweight grooves are symmetrically provided on both sides of the forehead support plate.

[0013] Optionally, the arc plate and the extruded plate are both curved elastic structures, and the arc plate and the extruded plate form an "S"-shaped profile as a whole. An elastic sheet is fixedly connected to the inner wall of the arc plate, and one end of the elastic sheet is fixed to the arc plate and the other end is an open structure that is flipped outward.

[0014] Optionally, a threaded seat is fixedly connected to the outer wall of the second adjusting rod, a screw is connected to the inner thread of the threaded seat, a plurality of clips are fixedly connected to the bottom outer wall of the second adjusting rod, the clips are elastic structures, a scale is provided on the second adjusting rod, a force adjustment rod is fixedly connected to the bottom of the extrusion plate, one end of the force adjustment rod is fixedly connected to the extrusion plate and the other end is inserted into the clip.

[0015] Optionally, the middle of the clip is a circular outline, and the size of the circular outline matches the size of the force adjustment rod, and the end of the clip is an open structure that expands outward.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up an auxiliary component, when the patient places his lower jaw on the lower jaw support plate and presses his forehead against the forehead support plate, the operator can manually adjust the auxiliary component to assist the patient in opening his eyes. The setting of the auxiliary component mainly opens the patient's eyes by mechanical support. In addition, the auxiliary component can adjust the angle and strength of the patient's eyes to meet the needs of different patients and improve the comfort of the patient's eyes. During the process of the auxiliary component opening the patient's eyes, the operator does not need to manually hold it all the time, nor does the patient need to cooperate. It is completed independently by the mechanical structure. Such a setting can not only improve the efficiency of slit lamp examination, but also reduce the difficulty for the operator to examine patients who have difficulty opening their eyes.

[0018] By setting a positioning rod, for patients who have difficulty opening their eyes, the operator can first manually pull down the patient's lower eyelid, and then adjust the angle of the positioning rod to make the bent portion contact the patient's lower eyelid, and use the bent portion to contact and pull the patient's lower eyelid, thereby achieving the effect of opening the patient's lower eyelid, and achieving the purpose of assisting the patient to open his eyes. While the bent portion contacts and pulls the patient's eyelid, the eversion portion will also fit around the patient's nose bridge in a wrapped manner. At this time, the eversion portion can be limited by the patient's nose bridge, thereby improving the stability of the bent portion structure and allowing it to exert a better pulling effect. The weakening groove thins the bent portion in sections, making the bent portion more likely to deform, thereby ensuring that the bent portion can deform following the patient's eye contour when contacting the patient's eye, thereby enhancing the pulling effect on the patient's lower eyelid on the basis of improving the patient's eye comfort.

[0019] The "L"-shaped profile of the lever arm is an L-shaped element that can be used to move the lever arm when the user presses the lever to the left. The "L"-shaped profile of the lever arm is an L-shaped element that can be used to move the lever arm when the user presses the lever to the left.

[0020] By setting the positioning plate and the squeezing plate, for patients who have difficulty opening their eyes, the operator can first adjust the height of the squeezing plate according to the position of the patient's eyes, so that the squeezing part is located at the position of the patient's upper eyelid. Since the squeezing plate is bent toward the patient's eyes, the curved surface contour of the squeezing plate can squeeze the patient's upper eyelid, thereby achieving the effect of assisting the patient to open his eyes. Since the positioning plate can slide up and down on the surface of the U-shaped rod, after the operator uses the squeezing plate to squeeze and open the patient's upper eyelid, the operator can adjust the height of the positioning plate, thereby changing the size of the patient's eyelid that is lifted.

[0021] By setting a screw rod and a force adjustment rod, when the operator rotates the screw rod to change the position of the screw rod on the second adjusting rod, the screw rod squeezes the force adjustment rod downward. During the extrusion process, the force adjustment rod will move downward along the direction of the second adjusting rod. During the movement of the force adjustment rod, the extrusion plate will tend to deform. During the deformation of the extrusion plate, the extrusion force and extrusion area on the patient's face will change. This setting allows the operator to adjust the shape of the extrusion plate by changing the height of the screw rod, thereby changing the extrusion force and extrusion area of the extrusion plate on the patient's face, further improving the extrusion effect of the extrusion plate on the patient's face, on the one hand improving the comfort of the patient's face, and on the other hand ensuring the stability of the extrusion plate on the patient's face. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0023] Figure 1 This is a schematic diagram of the first-person perspective stereoscopic structure of an ophthalmic examination device;

[0024] Figure 2 This is a schematic diagram of the second-view stereoscopic structure of the ophthalmic examination device;

[0025] Figure 3 A schematic diagram of the enlarged three-dimensional structure for the auxiliary components;

[0026] Figure 4 An enlarged three-dimensional structural diagram of the auxiliary component and the mandibular support plate;

[0027] Figure 5 This is an enlarged three-dimensional structural diagram of the adjustment disk, rotating rod and positioning rod;

[0028] Figure 6 A schematic diagram of the first-person perspective stereoscopic structure of the auxiliary component and forehead support plate;

[0029] Figure 7 A schematic diagram of the second-perspective stereoscopic structure of the auxiliary component and forehead support plate;

[0030] Figure 8 This is an enlarged schematic diagram of the three-dimensional structure of the forehead support plate;

[0031] Figure 9 This is an enlarged three-dimensional structural diagram of the U-shaped rod and the positioning plate;

[0032] Figure 10 This is an enlarged schematic diagram of the three-dimensional structure of the positioning plate;

[0033] Figure 11This is a schematic diagram of the enlarged three-dimensional structure of the U-shaped rod.

[0034] Reference numerals:

[0035] 1. Base; 101. Observation mechanism; 102. Illumination mechanism; 2. T-shaped mounting bracket; 201. Support bracket; 202. Lifting adjustment mechanism; 3. Mandibular support plate; 301. Adjustment hole; 4. Adjustment dial; 401. Rotating rod; 402. Positioning rod; 403. Bending portion; 404. Outward-turning portion; 405. Weakened groove; 406. Socket; 5. Insertion rod; 6. Forehead support plate; 601. Lightweight Groove; 602, limit slide; 7, U-shaped rod; 701, first adjusting rod; 702, rotating block; 703, second adjusting rod; 704, threaded seat; 705, screw rod; 706, clip; 8, positioning plate; 801, adjusting cylinder; 802, straight slide; 803, side slide; 804, limit slide; 805, arc plate; 806, extrusion plate; 807, force adjustment rod; 808, elastic sheet.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following describes in detail an ophthalmic examination device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0038] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0041] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0042] like Figures 1 to 3As shown, an embodiment of the present invention provides an ophthalmic examination device, including a base 1, an observation mechanism 101 and an illumination mechanism 102 are installed on the top of the base 1, the observation mechanism 101 is used to observe the patient's eyes, and the illumination mechanism 102 is used to provide a lighting environment for the patient's eyes, a T-shaped mounting frame 2 is fixedly connected to one side of the base 1, the top of the T-shaped mounting frame 2 is fixedly connected to a support frame 201, a mandibular support plate 3 and a forehead support plate 6 are sequentially installed on the support frame 201 from bottom to top, a lifting adjustment mechanism 202 is slidably connected to the support frame 201, and the lifting adjustment mechanism 202 is used to adjust the height of the mandibular support plate 3; an auxiliary component, the auxiliary component is used to assist the patient to open his eyes, the auxiliary component is respectively connected to the mandibular support plate 3 and the forehead support plate 6, in this application, the observation mechanism 101, the illumination mechanism 102 are used to provide a lighting environment for the patient's eyes, a T-shaped mounting frame 2 is fixedly connected to the top of the T-shaped mounting frame 2 Mechanism 102 and lifting and lowering adjustment mechanism 202 are both disclosed as prior art, so they will not be elaborated in detail. By setting up an auxiliary component, when the patient places the mandible on the mandibular support plate 3 and presses the forehead against the forehead support plate 6, the operator can manually adjust the auxiliary component to assist the patient to open his eyes. The setting of the auxiliary component mainly opens the patient's eyes by mechanical support. In addition, the auxiliary component can adjust the angle and strength of the patient's eyes to meet the needs of different patients and improve the comfort of the patient's eyes. During the process of the auxiliary component opening the patient's eyes, the operator does not need to manually hold it all the time, nor does the patient need to cooperate. It is completed independently by the mechanical structure. Such a setting can not only improve the efficiency of slit lamp examination, but also reduce the difficulty for the operator to examine patients with difficulty opening their eyes.

[0043] As an implementation method in this embodiment, Figures 1 to 5As shown, the auxiliary component includes an adjusting disk 4 rotatably connected to the top of the mandibular support plate 3, a rotating rod 401 is fixedly connected to one side of the adjusting disk 4, the bottom of the rotating rod 401 is inserted into the mandibular support plate 3, and the end of the rotating rod 401 away from the adjusting disk 4 is fixedly connected to the positioning rod 402, and the adjusting disk 4 is inserted with an insertion rod 5, a plurality of adjusting holes 301 are provided on the mandibular support plate 3, and a plurality of insertion holes 406 are provided on the adjusting disk 4, the sizes of the adjusting holes 301 and the insertion holes 406 are consistent with the sizes of the insertion rod 5, a bending portion 403 is fixedly connected to the middle position of the positioning rod 402, and an outward-turning portion 404 is fixedly connected to the end of the positioning rod 402, the bending portion 403 and the outward-turning portion 404 are both arc-shaped contours, and the bending portion 403 and the outward-turning portion 40 4 The arc-shaped contour is bent in opposite directions. The positioning rod 402, the bent portion 403 and the everted portion 404 are an integrally formed structure. A weakened groove 405 is provided on the bent portion 403. In the prior art, before examining a patient with a slit lamp, the patient's mandible needs to be placed on the mandibular support plate 3 to improve the stability of the patient's eyes during the examination. In the auxiliary component provided in the present application, the adjustment disk 4 and the rotating rod 401 are arranged on the mandibular support plate 3. When the patient places his mandible on the mandibular support plate 3, extra support space will be generated on both sides of the mandibular support plate 3. The adjustment plate and the rotating rod 401 are installed in the extra support space on both sides of the mandibular support plate 3. This arrangement is to ensure that the structure of the auxiliary component does not cause any interference with the patient's body position.

[0044] Specifically, since the bottom of the rotating rod 401 is inserted into the mandibular support plate 3, the adjusting disk 4 can be limited by the rotating rod 401, so that the adjusting disk 4 can rotate on the mandibular support plate 3 with the rotating rod 401 as the rotating axis. Since the sizes of the adjusting hole 301 and the socket 406 are consistent with the size of the insertion rod 5, the operator can selectively insert the insertion rod 5 into the corresponding adjusting hole 301 and socket 406 at the same time, thereby achieving the fixing effect of the adjusting disk 4. Such a setting allows the operator to adjust the rotation angle of the adjusting disk 4 by changing the insertion position of the insertion rod 5. Since the adjusting disk 4, the rotating rod 401 and the positioning rod 402 are fixed to each other, the angle of the positioning rod 402 also changes during the rotation of the adjusting disk 4. Since the adjusting hole 301 and the socket 406 are set in a certain number on the mandibular support plate 3 and the adjusting disk 4, the operator has more choices in the position of inserting the insertion rod 5, thereby making the angle adjustment of the adjusting disk 4 more accurate.

[0045] Furthermore, the positioning rod 402 and the rotating rod 401 are both made of plastic and are an integrally formed structure, but the size of the positioning rod 402 is thinner than that of the rotating rod 401. This setting is to make the positioning rod 402 more flexible. When the patient's mandible is placed on the mandibular support plate 3, the operator can rotate the adjustment disk 4 to make the positioning rod 402 contact the patient's face. Since the bending portion 403 and the eversion portion 404 are both arc-shaped contours, and the curved contours of the bending portion 403 and the eversion portion 404 are curved in the right direction, the positioning rod 402 can be adjusted to the desired position. In the opposite direction, when the positioning rod 402 contacts the patient's face, the curved portion 403 with the arc-shaped contour will contact and squeeze near the patient's lower eyelid, and at the same time, the arc-shaped contour of the everted portion 404 will wrap around and fit near the patient's nose bridge. Since the positioning rod 402 is made of plastic, it has certain flexibility and plasticity. Therefore, when the positioning rod 402 contacts the patient's face, the curved portion 403 and the everted portion 404 will undergo corresponding deformation according to the contour of the patient's face, thereby forming a better adaptation effect with the patient's facial contour.

[0046] Furthermore, for patients who have difficulty opening their eyes, the operator can first manually pull down the patient's lower eyelid, and then adjust the angle of the positioning rod 402 to allow the bent portion 403 to contact the patient's lower eyelid, and use the bent portion 403 to contact and pull the patient's lower eyelid, thereby achieving the effect of opening the patient's lower eyelid and helping the patient to open his eyes. While the bent portion 403 contacts and pulls the patient's eyelid, the eversion portion 404 will also fit around the patient's nose bridge in a wrapped manner. At this time, the eversion portion 404 can be limited by the patient's nose bridge, thereby improving the stability of the bent portion 403 structure and allowing it to exert a better pulling effect. Since two positioning rods 402 are symmetrically installed on the mandibular support plate 3, and the two positioning rods 402 can be rotated separately by the corresponding adjustment disk 4, such a setting makes the operator The operator can assist in pulling the patient's lower eyelid on one side with the help of the positioning rod 402 at the corresponding position according to the current eye opening situation of the patient. Since a weakening groove 405 is provided on the bending portion 403, the weakening groove 405 performs a segmented thinning treatment on the bending portion 403. This arrangement makes the bending portion 403 more likely to deform, thereby ensuring that the bending portion 403 can deform following the patient's eye contour when it contacts the patient's eye, thereby enhancing the pulling effect on the patient's lower eyelid on the basis of improving the patient's eye comfort; since the positioning rod 402 is a circular rod structure, the operator can wrap a disposable medical cotton pad around the outer wall of the positioning rod 402 before examining the patient's eyes with the help of a slit lamp. This not only improves the anti-slip effect of the positioning rod 402, but also is more hygienic.

[0047] As an implementation method in this embodiment, Figures 6 to 8As shown, the auxiliary component also includes a U-shaped rod 7 fixedly connected to the outer wall of the forehead support plate 6, a positioning plate 8 is slidably connected to the U-shaped rod 7, the bottom of the positioning plate 8 is fixedly connected to an arc plate 805, the bottom of the arc plate 805 is fixedly connected to an extrusion plate 806, the U-shaped rod 7 is a "U"-shaped profile, and the first and second adjusting rods 701 and 703 are respectively installed at both ends of the U-shaped rod 7, the positioning plate 8 is connected to the U-shaped rod 7 through the first adjusting rod 701, and the U-shaped rod 7 and the forehead support plate 6 are fixed by screws, and the side of the positioning plate 8 close to the first adjusting rod 701 is fixedly connected to the adjusting cylinder 801, and the adjusting cylinder 801 is a "C"-shaped profile, and a straight slide groove 802 is provided on the adjusting cylinder 801, and the straight slide groove 802 passes through the adjusting cylinder 80 1, the bottom of the adjustment cylinder 801 is provided with several side sliding grooves 803 from top to bottom, and the side sliding grooves 803 are connected to the straight sliding grooves 802. The first adjusting rod 701 is rotatably connected with a rotating block 702, and an "L"-shaped rod body is installed on the outer wall of the rotating block 702, and the "L"-shaped rod body is inserted into the straight sliding groove 802. The side of the positioning plate 8 close to the second adjusting rod 703 is fixedly connected to the limiting slide 804, and the forehead support plate 6 is provided with a limiting slide 602 corresponding to the position of the limiting slide 804. The limiting slide 804 passes through the forehead support plate 6 and is inserted into the limiting slide 602. Lightweight slots 601 are symmetrically provided on both sides of the forehead support plate 6. When the patient places his mandible on the mandibular support plate 3, the operator will adjust the position according to the size of the patient's face. The distance between the mandibular support plate 3 and the forehead support plate 6 is adjusted by the lifting adjustment mechanism 202, so that the patient's forehead contacts the inner wall of the forehead support plate 6. The forehead support plate 6 will cooperate with the mandibular support plate 3 to support the patient's entire head and block and limit the front side of the patient's head, thereby improving the stability of the patient's eyes. In the auxiliary component provided in the present application, the U-shaped rod 7 and the positioning plate 8 are installed on the forehead support plate 6, wherein the U-shaped rod 7 is fixed to the outer wall of the forehead support plate 6 by screws. Since the patient's forehead is attached to the inner wall of the forehead support plate 6, the U-shaped rod 7 will not cause any blocking to the patient's face. The positioning plate 8 made of plastic is slidably connected to the U-shaped rod 7, wherein the positioning plate 8 is fixedly connected to the side close to the first adjustment rod 701. The adjusting cylinder 801 is connected, and the adjusting cylinder 801 has a "C"-shaped profile. Since the adjusting cylinder 801 is made of plastic and has a "C"-shaped profile, the operator can bend the adjusting cylinder 801 outward to deform it. After deformation, the "C"-shaped profile of the adjusting cylinder 801 will become larger, so that the operator can directly put the first adjusting rod 701 into the adjusting cylinder 801. Such a structural setting can quickly realize the installation and disassembly between the adjusting cylinder 801 and the first adjusting rod 701. The side of the positioning plate 8 close to the second adjusting rod 703 is fixedly connected to the limiting slide 804, and the forehead support plate 6 is provided with a limiting slide 602 corresponding to the position of the limiting slide 804. The limiting slide 804 passes through the forehead support plate 6 and is inserted into the limiting slide 602.This arrangement allows the positioning plate 8 to be assisted in limiting its position by means of the limiting slide plate 804 and the limiting slide groove 602 during the sliding process on the first adjusting rod 701, thereby ensuring that the positioning plate 8 will not be misaligned or offset during the sliding process.

[0048] Specifically, when the positioning plate 8 slides on the first adjustment rod 701, the rotating block 702 will also slide in the straight sliding groove 802. The rotating block 702 can not only rotate on the first adjustment rod 701, but also an "L"-shaped rod body is installed on the outer wall of the rotating block 702. When the positioning plate 8 slides on the first adjustment rod 701, the "L"-shaped rod body on the rotating block 702 slides in the straight sliding groove 802. Since the adjusting cylinder 801 is provided with a plurality of side sliding grooves 803 from top to bottom, and the side sliding grooves 803 are connected to the straight sliding grooves 802, when the side sliding grooves 803 on the positioning plate 8 are connected When the slide groove 803 slides to the position of the rotating block 702, the operator can rotate the rotating block 702 to allow the rod body with the "L"-shaped profile to rotate into the side slide groove 803. At this time, the side slide groove 803 will block the limiting rotating block 702, so that the positioning plate 8 cannot continue to slide up and down. This setting allows the operator to rotate the rotating block 702 to fix the positioning plate 8, thereby achieving the effect of changing the position of the positioning plate 8. This adjustment method is not only simple to operate, but also because the rod body on the rotating block 702 has an "L"-shaped profile, it is more convenient and efficient for the operator to rotate the rotating block 702.

[0049] In this embodiment, if Figures 6 to 10As shown, the arc plate 805 and the extrusion plate 806 are both curved elastic structures, and the arc plate 805 and the extrusion plate 806 form an "S"-shaped profile as a whole. An elastic piece 808 is fixedly connected to the inner wall of the arc plate 805, and one end of the elastic piece 808 is fixed to the arc plate 805, and the other end is an open structure that flips outward. The positioning plate 8, the arc plate 805 and the extrusion plate 806 are an integrally formed structure, and are all made of plastic. The arc plate 805 and the extrusion plate 806 form an "S"-shaped profile as a whole. This arrangement allows the extrusion plate 806 and the arc plate 805 to be deformed. It is worth mentioning that the thickness of the arc plate 805 and the extrusion plate 806 is less than that of the positioning plate 8. This arrangement makes it easier for the extrusion plate 806 and the arc plate 805 with an "S"-shaped profile to be deformed under the action of external force. After being installed on the U-shaped rod 7, the squeezing plate 806 bends toward the patient's eyes. The operator can adjust the height of the squeezing plate 806 according to the position of the patient's eyes, so that the squeezing part is located at the position of the patient's upper eyelid, and use the curved surface contour of the squeezing plate 806 to squeeze the patient's upper eyelid. Since the squeezing plate 806 has a smooth curved elastic contour, it will not cause discomfort to the patient when it is squeezed onto the patient's face. Moreover, both the squeezing plate 806 and the arc plate 805 can be deformed under the action of external force, thereby ensuring that the squeezing plate 806 will not oppress the patient's eyelids and cause discomfort to the patient. Through such a setting, for patients who have difficulty opening their eyes, the operator can first manually open the patient's upper eyelid, and then use the squeezing plate 806 to pressurize and fix the patient's upper eyelid, thereby achieving the effect of assisting the patient to open his eyes.

[0050] Furthermore, an elastic sheet 808 is installed on the inner wall of the curved plate 805, and one end of the elastic sheet 808 is fixed on the curved plate 805, and the other end is an open structure turned outward. Before the operator performs an eye examination on the patient, he can first insert and fix one end of the disposable medical cotton pad along the open structure turned outward by the elastic sheet 808 between the elastic sheet 808 and the curved plate 805, and use the elastic force of the elastic sheet 808 to squeeze and fix the disposable medical cotton pad, and then let the other end of the disposable medical cotton pad along the open structure turned outward by the elastic sheet 808 to fix it. The contours of the arc plate 805 and the squeezing plate 806 are laid on the squeezing plate 806. This arrangement allows the operator to squeeze and stretch the patient's eyelids with the help of the squeezing plate 806, which not only improves the anti-slip effect of the squeezing plate 806 but also makes it more hygienic. In addition, since the positioning plate 8 can slide up and down on the surface of the U-shaped rod 7, when the operator squeezes and stretches the patient's upper eyelids with the help of the squeezing plate 806, the operator can adjust the height of the positioning plate 8, thereby changing the size of the patient's eyelids that are stretched.

[0051] In this embodiment, if Figures 6 to 11As shown, a threaded seat 704 is fixedly connected to the outer wall of the second adjusting rod 703, and a screw rod 705 is connected to the inner thread of the threaded seat 704. A plurality of clips 706 are fixedly connected to the outer wall of the bottom of the second adjusting rod 703. The clip 706 is an elastic structure. A scale is set on the second adjusting rod 703. A force adjustment rod 807 is fixedly connected to the bottom of the extrusion plate 806. One end of the force adjustment rod 807 is fixedly connected to the extrusion plate 806 and the other end is inserted into the clip 706. The middle of the clip 706 is a circular outline, and the size of the circular outline is the same as that of the force adjustment rod 8 07, the end of the clip 706 is an open structure that expands outward. Since the threaded seat 704 and the screw rod 705 are connected by a thread, the operator can change the position of the screw rod 705 on the second adjustment rod 703 by screwing the screw rod 705. The force adjustment rod 807 extends from the bottom of the extrusion plate 806 to one side of the second adjustment rod 703 and is fixed to the second adjustment rod 703 through the clip 706. Since the middle of the clip 706 is a circular outline, and the size of the circular outline matches the size of the force adjustment rod 807, the clip 706 can achieve the clamping and fixing effect of the force adjustment rod 807. Here, the end of the clip 706 is set to an open structure that expands outward, which can facilitate the operator to press and fix the force adjustment rod 807 in the clip 706, thereby improving the assembly efficiency between the force adjustment rod 807 and the second adjustment rod 703. When the operator rotates the screw rod 705 to change the position of the screw rod 705 on the second adjustment rod 703, the screw rod 705 squeezes the force adjustment rod 807 downward. During the squeezing process, the force adjustment rod 807 will move downward along the direction of the second adjustment rod 703. During the movement of the force adjustment rod 807, the extrusion plate 806 will tend to deform. During the deformation of the extrusion plate 806, the extrusion force and extrusion area on the patient's face will change. This setting allows the operator to adjust the shape of the extrusion plate 806 by changing the height of the screw rod 705, thereby changing the extrusion force and extrusion area of the extrusion plate 806 on the patient's face, further improving the extrusion effect of the extrusion plate 806 on the patient's face, on the one hand improving the comfort of the patient's face, and on the other hand ensuring the stability of the extrusion plate 806 on the patient's face.

[0052] The working principle of the technical solution provided by the present invention is as follows:

[0053] During use, the patient's lower jaw is placed on the lower jaw support plate 3. After placement, the operator adjusts the distance between the lower jaw support plate 3 and the forehead support plate 6 through the lifting and adjusting mechanism 202 according to the size of the patient's face, so that the patient's forehead contacts the inner wall of the forehead support plate 6. The forehead support plate 6 will cooperate with the lower jaw support plate 3 to support the patient's entire head and block and limit the front side of the patient's head, thereby improving the stability of the patient's eyes. Then the operator uses the lighting mechanism 102 to illuminate the patient's eyes and examines the patient's eyes through the observation mechanism 101.

[0054] For patients who have difficulty opening their eyes, the operator can first manually pull down the patient's lower eyelid, and then adjust the angle of the positioning rod 402 to make the bent portion 403 contact the patient's lower eyelid, and use the bent portion 403 to resist and pull the patient's lower eyelid, thereby achieving the effect of opening the patient's lower eyelid and helping the patient to open his eyes. At the same time, the bent portion 403 resists and pulls the patient's eyelid, and the eversion portion 404 will also fit around the patient's nose bridge in a wrapped manner. At this time, the eversion portion 404 can be limited by the patient's nose bridge, thereby improving the stability of the bent portion 403 structure, allowing it to play a better pulling effect. 02 is a circular rod structure, so before the operator uses the slit lamp to examine the patient's eyes, he can first wrap a disposable medical cotton pad around the outer wall of the positioning rod 402. This not only improves the anti-slip effect of the positioning rod 402, but also is more hygienic. After the lower eyelid is opened, the operator slides and adjusts the position of the positioning plate 8 according to the position of the patient's eyes. When the positioning plate 8 moves to the appropriate position, the operator can rotate the "L"-shaped rod body into the side slide groove 803 by rotating the rotating block 702. At this time, the side slide groove 803 will block the limiting rotating block 702, so that the positioning plate 8 cannot continue to slide up and down. Such a setting The operator can rotate the rotating block 702 to fix the positioning plate 8, thereby achieving the effect of changing the position of the positioning plate 8. After the position of the positioning plate 8 is adjusted, the curved surface contour of the squeezing plate 806 will squeeze the patient's upper eyelid. Since the squeezing plate 806 is a smooth curved elastic contour, it will not cause discomfort to the patient when it is squeezed onto the patient's face. Moreover, both the squeezing plate 806 and the curved plate 805 can be deformed under the action of external force, thereby ensuring that the squeezing plate 806 will not press the patient's eyelid to cause discomfort to the patient. For patients with difficulty opening their eyes, the operator can manually open the patient's eyelids first. The upper eyelid of the patient is then pressurized and fixed with the help of the squeezing plate 806, thereby achieving the effect of assisting the patient to open his eyes. In addition, when the operator screws the screw rod 705 to change the position of the screw rod 705 on the second adjusting rod 703, the screw rod 705 is allowed to squeeze the force adjustment rod 807 downward. During the squeezing process, the force adjustment rod 807 will move downward along the direction of the second adjusting rod 703. During the movement of the force adjustment rod 807, the squeezing plate 806 will tend to deform. During the deformation of the squeezing plate 806, the squeezing force and squeezing area on the patient's face will change, thereby improving the comfort of the patient's face.

[0055] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An ophthalmic examination device, comprising a base, characterized in that: An observation mechanism and an illumination mechanism are installed on the top of the base, the observation mechanism is used to observe the patient's eyes, and the illumination mechanism is used to provide a lighting environment for the patient's eyes. A T-shaped mounting frame is fixedly connected to one side of the base, and a support frame is fixedly connected to the top of the T-shaped mounting frame. A mandibular support plate and a forehead support plate are sequentially installed on the support frame from bottom to top. A lifting adjustment mechanism is slidably connected to the support frame, and the lifting adjustment mechanism is used to adjust the height of the mandibular support plate; An auxiliary component, the auxiliary component is used to assist the patient in opening his eyes, the auxiliary component being connected to the mandibular support plate and the forehead support plate respectively; The auxiliary component includes an adjusting disk rotatably connected to the top of the mandibular support plate, one side of the adjusting disk is fixedly connected to a rotating rod, the bottom of the rotating rod passes through and is inserted into the mandibular support plate, the end of the rotating rod away from the adjusting disk is fixedly connected to a positioning rod, and the adjusting disk is plugged with an insertion rod, the auxiliary component also includes a U-shaped rod fixedly connected to the outer wall of the forehead support plate, the U-shaped rod is slidably connected to a positioning plate, the bottom of the positioning plate is fixedly connected to an arc plate, and the bottom of the arc plate is fixedly connected to an extrusion plate; A bent portion is fixedly connected at the middle position of the positioning rod, and an outward-turned portion is fixedly connected to the end of the positioning rod. The bent portion and the outward-turned portion both have arc-shaped contours, and the bending directions of the bent portion and the outward-turned portion are opposite. The positioning rod, the bent portion and the outward-turned portion are an integrally formed structure, and a weakening groove is provided on the bent portion; The U-shaped rod has a "U"-shaped profile, and a first adjustment rod and a second adjustment rod are respectively installed at both ends of the U-shaped rod. The positioning plate is connected to the U-shaped rod through the first adjustment rod, and the U-shaped rod and the forehead support plate are fixed by screws; An adjusting cylinder is fixedly connected to one side of the positioning plate close to the first adjusting rod. The adjusting cylinder has a "C"-shaped profile. A straight slide groove is provided on the adjusting cylinder, and the straight slide groove extends to the bottom of the adjusting cylinder. The adjusting cylinder has a plurality of side slide grooves from top to bottom, and the side slide grooves are connected to the straight slide groove. A rotating block is rotatably connected to the first adjusting rod, and an "L"-shaped rod body is installed on the outer wall of the rotating block, and the "L"-shaped rod body is inserted into the straight slide groove. The arc plate and the extruded plate are both curved elastic structures, and the arc plate and the extruded plate form an "S"-shaped profile as a whole. An elastic sheet is fixedly connected to the inner wall of the arc plate, and one end of the elastic sheet is fixed to the arc plate, and the other end is an open structure turned outward; A threaded seat is fixedly connected to the outer wall of the second adjusting rod, and a screw rod is connected to the inner thread of the threaded seat. A plurality of clips are fixedly connected to the outer wall of the bottom of the second adjusting rod, and the clips are elastic structures. A scale is provided on the second adjusting rod, and a force adjustment rod is fixedly connected to the bottom of the extrusion plate, and one end of the force adjustment rod is fixedly connected to the extrusion plate and the other end is inserted into the clip.

2. The ophthalmic examination device according to claim 1, wherein The mandibular support plate is provided with a plurality of adjustment holes, and the adjustment disk is provided with a plurality of insertion holes. The sizes of the adjustment holes and the insertion holes are consistent with the size of the insertion rod.

3. The ophthalmic examination device according to claim 1, wherein The side of the positioning plate close to the second adjusting rod is fixedly connected to the limiting slide, and the forehead support plate is provided with a limiting slide groove corresponding to the position of the limiting slide groove, and the limiting slide groove passes through the forehead support plate and is inserted into the limiting slide groove, and lightweight grooves are symmetrically provided on both sides of the forehead support plate.

4. The ophthalmic examination device according to claim 1, wherein The middle of the clip is a circular outline, and the size of the circular outline matches the size of the force adjustment rod. The end of the clip is an open structure that expands outward.

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