Ophthalmic examination device

Abstract

The invention provides an ophthalmic examination device, and belongs to the technical field of ophthalmic examination. Comprising a base, a T-shaped mounting frame is fixedly connected to one side of the base, a supporting frame is fixedly connected to the top of the T-shaped mounting frame, a lower jaw supporting plate and a forehead supporting plate are sequentially mounted on the supporting frame from bottom to top, and an auxiliary assembly is used for assisting a patient in opening eyes and connected with the lower jaw supporting plate and the forehead supporting plate. By arranging the auxiliary assembly, an operator can manually adjust the auxiliary assembly to assist a patient in opening eyes, and the auxiliary assembly can adjust the angle and force of supporting the eyes of the patient, so that the requirements of different patients are met, and the comfort level of the eyes of the patient is improved; the process that the auxiliary assembly opens the eyes of the patient does not need to be manually held by an operator all the time and is independently completed only through a mechanical structure, so that the slit lamp inspection efficiency can be improved, and the difficulty that the operator inspects the patient with the difficulty in opening the eyes is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ophthalmic examination, and in particular to an ophthalmic 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 both eyes to 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, especially for some patients who already have eye diseases. It becomes 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, and the patient's cooperation is not required. 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 examination for patients with difficulty opening their eyes by the operator. The above setting can solve the problem of low efficiency of examination for 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: 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, 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, 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.

[0006] 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.

[0007] Optionally, the mandibular support plate is provided with a plurality of adjustment holes, and the adjustment disk is provided with a plurality of insertion holes, and the sizes of the adjustment holes and the insertion holes are consistent with the sizes of the insertion rod.

[0008] 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 weakened groove is provided on the bending portion.

[0009] Optionally, the U-shaped rod has a "U"-shaped profile, and a first adjusting rod and a second adjusting 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 adjusting rod, and the U-shaped rod and the forehead support plate are fixed by screws.

[0010] Optionally, 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 sliding groove is provided on the adjusting cylinder, and the straight sliding groove extends to the bottom of the adjusting cylinder, and a plurality of side sliding grooves are provided on the adjusting cylinder from top to bottom, and the side sliding grooves are connected to the straight sliding groove, and a rotating block is rotatably connected to the first adjusting rod, a rod body with an "L"-shaped profile is installed on the outer wall of the rotating block, and the rod body with the "L"-shaped profile is inserted into the straight sliding groove.

[0011] Optionally, the positioning plate is fixedly connected to a limiting slide on one side close to the second adjusting rod, a limiting slide groove corresponding to the position of the limiting slide groove is provided on the forehead support plate, 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.

[0012] Optionally, the arc plate and the extrusion plate are both curved elastic structures, and the arc plate and the extrusion 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.

[0013] 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.

[0014] 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.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, by setting up an auxiliary component, when the patient places the lower jaw on the lower jaw support plate and presses the forehead against the forehead support plate, the operator can manually adjust the auxiliary component to assist the patient to open his eyes. The auxiliary component is mainly set to open 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 patient's eye comfort. During the process of the auxiliary component opening the patient's eyes, the operator does not need to manually hold it all the time, and the patient does not 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 examination for patients with difficulty opening their eyes by the operator.

[0016] 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 helping the patient to open his eyes. While the bent portion contacts and pulls the patient's eyelid, the eversion portion will also wrap around and fit on the patient's nose bridge. 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 weakened groove performs a segmented thinning treatment on the bent portion, making the bent portion more likely to deform, thereby ensuring that the bent portion 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.

[0017] By setting the positioning cylinder and the rotating block, when the positioning plate slides on the first adjusting rod, the "L"-shaped contour rod body on the rotating block slides in the straight sliding groove, and when the side sliding groove on the positioning plate slides to the position of the rotating block, the operator can rotate the rotating block to allow the "L"-shaped contour rod body to rotate into the side sliding groove. At this time, the side sliding groove will block the limiting rotating block, so that the positioning plate cannot continue to slide up and down. This setting allows the operator to rotate the rotating block to fix the positioning plate, thereby achieving the effect of changing the position of the positioning plate. This adjustment method is not only simple to operate, but also because the rod body on the rotating block has an "L"-shaped contour, it is more convenient and efficient for the operator to rotate the rotating block.

[0018] 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 squeezes and stretches the patient's upper eyelid with the help of the squeezing plate, the operator can adjust the height of the positioning plate, thereby changing the size of the patient's eyelid being stretched.

[0019] 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, and during the extrusion process, the force adjustment rod moves downward along the direction of the second adjusting rod, and the extrusion plate tends to deform during the movement of the force adjustment rod. The extrusion plate deforms during the deformation of the extrusion plate, and the extrusion force and extrusion area on the patient's face are changed. This arrangement 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

[0020] 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 those skilled in the relevant art to make and use the invention.

[0021] Figure 1 This is a schematic diagram of the stereoscopic structure of the ophthalmic examination device from a first-person perspective; Figure 2 It is a schematic diagram of the stereoscopic structure of the ophthalmic examination device from a second viewing angle; Figure 3 A schematic diagram of the enlarged three-dimensional structure for the auxiliary components; Figure 4 An enlarged three-dimensional structural diagram of the auxiliary component and the mandibular support plate; Figure 5 It is a schematic diagram of the enlarged three-dimensional structure of the adjustment disk, the rotating rod and the positioning rod; Figure 6 A schematic diagram of the first-person perspective stereoscopic structure of the auxiliary component and the forehead support plate; Figure 7 A schematic diagram of the second-view stereoscopic structure of the auxiliary component and the forehead support plate; Figure 8 This is an enlarged schematic diagram of the three-dimensional structure of the forehead support plate; Fig. 9 It is a schematic diagram of the enlarged three-dimensional structure of the U-shaped rod and the positioning plate; Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of the positioning plate; Fig.11 This is a schematic diagram of the enlarged three-dimensional structure of the U-shaped rod.

[0022] Reference numerals: 1. Base; 101. Observation mechanism; 102. Illumination mechanism; 2. T-shaped mounting frame; 201. Support frame; 202. Lifting adjustment mechanism; 3. Mandibular support plate; 301. Adjustment hole; 4. Adjustment plate; 401. Rotating rod; 402. Positioning rod; 403. Bending part; 404. Outward eversion part; 405. Weakened groove; 406. Plug hole; 5. Plug rod; 6. Forehead support plate; 601. Lightweight Groove; 602, limit slide groove; 7, U-shaped rod; 701, first adjusting rod; 702, rotating block; 703, second adjusting rod; 704, threaded seat; 705, screw rod; 706, clamping piece; 8, positioning plate; 801, adjusting cylinder; 802, straight slide groove; 803, side slide groove; 804, limit slide plate; 805, arc plate; 806, extrusion plate; 807, force adjustment rod; 808, elastic sheet.

[0023] 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

[0024] The following is a detailed description of an ophthalmic examination device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0025] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0026] In general, a term can be understood, at least in part, from its 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.

[0027] 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” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0028] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown 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 may be similarly interpreted accordingly.

[0029] like Figures 1 to 3 As 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, and a support frame 201 is fixedly connected to the top of the T-shaped mounting frame 2, and a mandibular support plate 3 and a forehead support plate 6 are installed on the support frame 201 from bottom to top in sequence, and 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, and the auxiliary component is respectively connected to the mandibular support plate 3 and the forehead support plate 6. In the present application, the observation mechanism 101, the illumination mechanism 102 and the illumination mechanism 102 are connected to the top of the T-shaped mounting frame 201. Both the mechanism 102 and the lifting and lowering adjustment mechanism 202 are disclosed as prior arts, and therefore will not be elaborated on in detail. By setting up an auxiliary component, when the patient places the mandible on the mandible 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 in opening his eyes. The auxiliary component is mainly set to open 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 of examination for patients with difficulty opening their eyes by the operator.

[0030] 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, the end of the rotating rod 401 away from the adjusting disk 4 is fixedly connected to the positioning rod 402, the insertion rod 5 is inserted on the adjusting disk 4, a plurality of adjusting holes 301 are provided on the mandibular support plate 3, 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 404 are The arc-shaped contour is bent in opposite directions. The positioning rod 402, the bending portion 403 and the eversion portion 404 are an integrally formed structure. The bending portion 403 is provided with a weakened groove 405. In the prior art, before the slit lamp is used to examine the patient, 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 plate 4 and the rotating rod 401 are arranged on the mandibular support plate 3. When the patient places the mandible on the mandibular support plate 3, redundant supporting 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 redundant supporting 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 to the patient's body position.

[0031] 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 plug hole 406 are consistent with the sizes of the plug rod 5, the operator can selectively plug the plug rod 5 into the corresponding adjusting hole 301 and the plug hole 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 plug-in position of the plug 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 is also changing during the rotation of the adjusting disk 4. Since the adjusting hole 301 and the plug hole 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 plugging the plug rod 5, thereby making the angle adjustment of the adjusting disk 4 more accurate.

[0032] 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 arrangement 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 bending portion 403 and the eversion portion 404 are curved in the direction of curvature, 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 bent 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 eversion portion 404 will wrap around and fit near the patient's nose bridge. Since the positioning rod 402 is made of plastic, it has a certain flexibility and plasticity. Therefore, when the positioning rod 402 contacts the patient's face, the bent portion 403 and the eversion portion 404 will deform accordingly according to the contour of the patient's face, thereby forming a better adaptation effect with the patient's facial contour.

[0033] 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 make the bending portion 403 contact the patient's lower eyelid, and use the bending 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 bending 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 bending 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 lower eyelid of one side of the patient with the help of the positioning rod 402 at the corresponding position according to the current eye opening situation of the patient. Since the weakened groove 405 is provided on the bending portion 403, the weakened groove 405 performs a segmented thinning treatment on the bending portion 403. Such an arrangement makes it easier for the bending portion 403 to deform, thereby ensuring that the bending portion 403 can deform along with 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.

[0034] 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, an arc plate 805 is fixedly connected to the bottom of the positioning plate 8, an extrusion plate 806 is fixedly connected to the bottom of the arc plate 805, the U-shaped rod 7 is a "U"-shaped profile, a first adjusting rod 701 and a second adjusting rod 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, the U-shaped rod 7 and the forehead support plate 6 are fixed by screws, an adjusting cylinder 801 is fixedly connected to the side of the positioning plate 8 close to the first adjusting rod 701, the adjusting cylinder 801 is a "C"-shaped profile, a straight slide groove 802 is opened on the adjusting cylinder 801, and the straight slide groove 802 penetrates to the adjusting cylinder 80 1, the adjusting cylinder 801 is provided with a plurality of side slide grooves 803 from top to bottom, and the side slide grooves 803 are connected with the straight slide groove 802. A rotating block 702 is rotatably connected to the first adjusting rod 701, 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 slide groove 802. A side of the positioning plate 8 close to the second adjusting rod 703 is fixedly connected to a limiting slide plate 804, and a limiting slide groove 602 corresponding to the position of the limiting slide plate 804 is provided on the forehead support plate 6. The limiting slide plate 804 penetrates the forehead support plate 6 and is inserted into the limiting slide groove 602. Lightweight grooves 601 are symmetrically provided on both sides of the forehead support plate 6. When the patient places the 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 and adjusting 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 adjusting rod 701. An adjusting cylinder 801 is connected, and the adjusting cylinder 801 is in 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 groove 602 corresponding to the position of the limiting slide groove 804. The limiting slide groove 804 passes through the forehead support plate 6 and is inserted into the limiting slide groove 602.Such a configuration allows the positioning plate 8 to be assisted in limiting 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.

[0035] Specifically, when the positioning plate 8 slides on the first adjusting 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 adjusting rod 701, but also an "L"-shaped profile rod body is installed on the outer wall of the rotating block 702. When the positioning plate 8 slides on the first adjusting rod 701, the "L"-shaped profile 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 to the straight sliding grooves 802, 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 also more convenient and efficient for the operator to rotate the rotating block 702.

[0036] 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 sheet 808 is fixedly connected to the inner wall of the arc plate 805, one end of the elastic sheet 808 is fixed to the arc plate 805, and the other end is an open structure that is turned 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 squeeze the patient's upper eyelid with the help of the curved surface contour of the squeezing plate 806. 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, and 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 compress 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.

[0037] Furthermore, an elastic sheet 808 is installed on the inner wall of the arc plate 805, and one end of the elastic sheet 808 is fixed on the arc plate 805, and the other end is an open structure turned outward. Before the operator performs an eye examination on the patient, one end of the disposable medical cotton pad can be inserted and fixed between the elastic sheet 808 and the arc plate 805 along the open structure turned outward by the elastic sheet 808, and the disposable medical cotton pad can be squeezed and fixed by the elastic force of the elastic sheet 808, and then the other end of the disposable medical cotton pad can be inserted along the open structure turned outward by the elastic sheet 808. 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 to thereby change the size of the patient's eyelids being stretched.

[0038] 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 clips 706 are elastic structures. A scale is set on the second adjusting rod 703. A strength adjusting rod 807 is fixedly connected to the bottom of the extrusion plate 806. One end of the strength adjusting 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 strength adjusting rod 807. 07, the end of the clip 706 is an open structure that expands outwards. Since the threaded seat 704 and the screw rod 705 are connected by threads, 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 by the clip 706. Since the middle of the clip 706 is a circular contour, and the size of the circular contour 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 moves downward along the direction of the second adjustment rod 703. During the movement of the force adjustment rod 807, the extrusion plate 806 tends to be deformed. During the deformation of the extrusion plate 806, the extrusion force and the extrusion area on the patient's face will change. This arrangement 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 the 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, it improves the comfort of the patient's face, and on the other hand, it ensures the stability of the extrusion plate 806 on the patient's face.

[0039] The working principle of the technical solution provided by the present invention is as follows: When in 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.

[0040] 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 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 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 exert a better pulling effect. 02 is a circular rod structure, so before the operator examines the patient's eyes with the help of a slit lamp, he can first wrap a disposable medical cotton pad around the outer wall of the positioning rod 402, which 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 a suitable position, the operator can rotate the rotating block 702 to rotate the "L"-shaped rod body into the side sliding groove 803. At this time, the side sliding 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 arc plate 805 can be deformed under the action of external force, thereby ensuring that the squeezing plate 806 will not press the patient's eyelids to cause discomfort to the patient. For patients with difficulty opening their eyes, the operator can manually open the patient's 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 rotates the screw rod 705 to change the position of the screw rod 705 on the second adjusting rod 703, the screw rod 705 squeezes the force adjustment rod 807 downward. During the squeezing process, the force adjustment rod 807 moves downward along the direction of the second adjusting rod 703. During the movement of the force adjustment rod 807, the squeezing plate 806 tends 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.

[0041] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0042] 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 principle of the present invention. These improvements and modifications should also be regarded as 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 an illumination 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 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.

2. The ophthalmic examination device according to claim 1, characterized in that: 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 penetrates 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.

3. The ophthalmic examination device according to claim 2, characterized in that: 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.

4. The ophthalmic examination device according to claim 2, characterized in that: A bending 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 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 weakened groove is provided on the bending portion.

5. The ophthalmic examination device according to claim 2, characterized in that: 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.

6. The ophthalmic examination device according to claim 5, characterized in that: An adjusting cylinder is fixedly connected to one side of the positioning plate close to the first adjusting rod, and 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. A plurality of side slide grooves are provided on the adjusting cylinder 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 the "L"-shaped profile is inserted into the straight slide groove.

7. The ophthalmic examination device according to claim 5, characterized in that: The positioning plate is fixedly connected to a limiting slide plate on one side close to the second adjusting rod, a limiting slide groove corresponding to the position of the limiting slide groove is provided on the forehead supporting plate, the limiting slide groove passes through the forehead supporting plate and is inserted into the limiting slide groove, and lightweight grooves are symmetrically provided on both sides of the forehead supporting plate.

8. The ophthalmic examination device according to claim 2, characterized in that: The arc plate and the extrusion plate are both curved elastic structures, and the arc plate and the extrusion 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 turned outward.

9. The ophthalmic examination device according to claim 5, characterized in that: A threaded seat is fixedly connected to the outer wall of the second adjusting rod, and a screw 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 adjusting rod is fixedly connected to the bottom of the extrusion plate, and one end of the force adjusting rod is fixedly connected to the extrusion plate and the other end is inserted into the clip.

10. The ophthalmic examination device according to claim 9, characterized in that: 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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