Eyelid stretching device for ophthalmic care

Abstract

The present invention provides an eyelid stretching device for ophthalmic care, which belongs to the technical field of medical devices. It comprises a fixed frame, a threaded rod is sleeved in the fixed frame, and support arms are movably connected at both ends of the fixed frame, one end of the threaded rod extends between the fixed frame and the support arm and is connected to an adjustment seat through a bearing, both ends of the adjustment seat are rotatably connected to a support rod, one end of the support rod away from the adjustment seat is rotatably connected to the support arm, and the end of the support arm is fixedly connected to an eyelid opening hook. The present invention provides a support pad, a joint ball and a connecting assembly, so that the support pad and the joint ball can be connected and fixed to the fixed frame through the connecting assembly, and the support pad and the joint ball are used to support the fixed frame of the entire eyelid stretching device, thereby reducing the workload of medical staff and ensuring the stability of the eyelid stretching device during use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an eyelid opening device for ophthalmic care. Background Art

[0002] An eyelid speculum, also known as an eyelid opener, is a tool used in ophthalmic surgery or examination to open the eyelids to facilitate doctors to perform surgery or diagnosis. It is usually V-shaped, U-shaped or Y-shaped, and includes a support arm and an eyelid hook. The distance between the arm ends is adjusted and locked by a knob. According to the structure, the eyelid opener can be divided into a wire eyelid opener, a translational eyelid opener, an adjustable eyelid opener, and there are also different designs specifically for children and adults.

[0003] The existing adjustable eyelid splinter can adjust the spacing of the eyelid hooks according to the patient's usage requirements to meet the needs of different patients. The adjustable eyelid splinter is provided with an adjustment mechanism, which is relied on for adjustment. However, due to the setting of the adjustment mechanism, it is different from the traditional wire eyelid splinter. The area where the adjustment mechanism is set has a greater weight, and it is difficult to support the eyelid splinter on the patient's face. Therefore, during use, a medical staff is often required to hold it and fix it, which increases the workload of the medical staff and the stability cannot be guaranteed. Secondly, the adjustment structure of the adjustable eyelid splinter is generally composed of a screw. Although the adjustment accuracy is high and the structure is stable, when disassembling the adjustable eyelid splinter after completing the ophthalmic surgery, it is necessary to rotate the screw in the opposite direction to reduce the spacing of the eyelid hooks before the adjustable eyelid splinter can be removed. The entire disassembly step is slow and inefficient. Therefore, the present application provides an eyelid opening device for ophthalmic care to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an eyelid opening device for ophthalmic care to solve the problem that the existing adjustable eyelid opening device requires the support of medical staff, and the screw structure is slow and inefficient in disassembling the eyelid opening device.

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

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein the two trackballs are designed to be connected to the foot stand of the invention. The trackballs are designed to be connected to the foot stand of the invention. The trackballs are designed to be connected to the foot stand of the invention.

[0007] Optionally, a limiting plate matched to the size of the threaded rod is fixedly connected to the fixing frame, the threaded rod is sleeved in the limiting plate, and a knob is fixedly connected to one end of the threaded rod away from the support arm.

[0008] Optionally, the connecting assembly includes a second fixing plate fixedly connected to the top of the joint ball and a first fixing plate sleeved on the outside of the fixing frame, and a plug-in column is fixedly connected between the first fixing plate and the second fixing plate, and the shape of the plug-in column is adapted to the shape of the plug-in slot.

[0009] Optionally, a first positioning area is provided between the first fixing plate and the plug-in column, a second positioning area is provided between the second fixing plate and the plug-in column, a clamping strip is fixedly connected to a surface of the first fixing plate facing the outside of the fixing frame, and a clamping slot matching the shape of the clamping strip is provided on the outside of the fixing frame.

[0010] Optionally, a second weakened groove is provided at the connection between the first fixing plate and the first positioning area, and the end of the first fixing plate is bent away from the outside of the fixing frame to form an arcuate edge, and the outside of the arcuate edge is provided with evenly distributed friction lines.

[0011] Optionally, the support pad is connected to the bottom of the second fixing plate through the joint ball, and the bottom surface of the support pad is provided with evenly distributed arc grooves, the end of the second fixing plate away from the second positioning area is provided with an inclined surface, and the support pad is provided with evenly distributed air holes.

[0012] Optionally, the limiting assembly includes an elastic sheet fixedly connected to the outside of the threaded sleeve, a compression zone is provided in the middle of the elastic sheet, and the compression zone is fixedly connected to the outside of the threaded sleeve via a connecting zone.

[0013] Optionally, both upper and lower ends of the threaded sleeve are provided with limit strips, and the inner wall of the threaded sleeve is provided with threads adapted to the outer portion of the threaded rod, and the limit strip is in close contact with the inner wall of the plug-in slot.

[0014] Optionally, the upper and lower ends of the elastic sheet are fixedly connected to the inner side wall of the plug-in slot through a fixed area, and the elastic sheet is provided with a first weakened groove symmetrically distributed on both sides of the pressure zone, and the thickness values ​​of the fixed area, the pressure zone and the first weakened groove decrease successively.

[0015] Optionally, a pressing area matching the shape of the compressed area is arranged on the outside of the plug-in column, and a guide surface is provided on one end of the pressing area away from the first positioning area.

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

[0017] In the above scheme, by providing a support pad, a joint ball and a connecting assembly, the support pad and the joint ball can be connected and fixed to the fixed frame through the connecting assembly, and the support pad and the joint ball can be used to support the fixed frame of the entire eyelid stretching device, thereby reducing the workload of medical staff and ensuring the stability of the eyelid stretching device during use.

[0018] By providing arc grooves and air holes on the support pad, the support pad can cooperate with the joint ball to provide auxiliary support for the eyelid opening device, while being able to better adapt to the facial shapes of different patients through its own deformation, and avoid sweat generation in the support area that affects the stability of the support, thereby further improving the adaptation range of the eyelid opening device and further enhancing the support effect.

[0019] By providing the first fixing plate and the second weakened groove as well as the clamping strip and the clamping groove in the connecting component, the connection, fixing and disassembly operations between the entire connecting component and the fixing frame are simple and convenient, and the stability after connection and fixing is guaranteed, thereby ensuring the safety of the entire eyelid opening device during actual use.

[0020] By setting a limit component, the threaded sleeve in the plug-in slot is limited. When the limit component is not working, the elastic force of the elastic sheet automatically limits the position of the threaded sleeve in the plug-in slot, so that the threaded sleeve is separated from the outside of the threaded rod, and the threaded connection between the threaded sleeve and the threaded rod is released, so that the threaded rod can quickly slide relative to the fixing frame, and the opening size of the eyelid opening hook can be adjusted, so as to facilitate the disassembly of the eyelid opening device after ophthalmic surgery.

[0021] By setting the elastic sheet in the limiting component and the pressing area in the connecting component, when a connection and fixing relationship is formed between the connecting component and the fixing frame, the pressing area on the elastic sheet is squeezed and limited by the pressing area on the plug-in column, so as to ensure that the threaded sleeve can fit on the outside of the threaded rod and form a threaded state with the threaded rod. At the same time, the reaction force of the limiting component on the plug-in column also assists the connection and fixation between the connecting component and the fixing frame, further enhancing the connection effect between the connecting component and the fixing frame, and indirectly ensuring the support effect of the support pad and the joint ball. When the patient's eyelids are opened, the threaded rod can rotate and push the adjustment seat to move by thread movement to accurately and stably control the opening size of the eyelid hook, so that the structure between the connecting component and the limiting component is coordinated, making the whole solution more perfect. 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 those skilled in the relevant art to make and use the invention.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of an eyelid opening device for ophthalmic care;

[0024] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of a fixing frame;

[0025] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0027] Figure 5 is a schematic diagram of the three-dimensional structure of the fixing frame;

[0028] Figure 6 It is a schematic diagram of the matching structure of the threaded rod and the threaded sleeve;

[0029] Figure 7 It is a schematic diagram of the matching structure of the threaded sleeve and the elastic sheet;

[0030] Figure 8 It is a schematic diagram of the matching structure of the first fixing plate, the second fixing plate and the plug-in column;

[0031] Fig. 9 for Figure 8 The enlarged structural diagram at C in the middle;

[0032] Fig.10 It is a schematic diagram of the matching structure of the plug-in column and the elastic sheet.

[0033] Reference numerals:

[0034] 1. Fixing frame; 2. Adjusting seat; 3. Support arm; 4. Support rod; 5. Eyelid hook; 6. Threaded rod; 7. First fixing plate; 8. Support pad; 9. Joint ball; 10. Plug-in column; 11. Limiting plate; 12. Threaded sleeve; 13. Limiting strip; 14. Elastic sheet; 15. Arc groove; 16. Air vent; 17. Plug-in groove; 18. Pressure zone; 19. First weakened groove; 20. Fixing zone; 21. Connecting zone; 22. Pressing zone; 23. Guide surface; 24. Second weakened groove; 25. Second fixing plate; 26. Inclined surface; 27. First positioning zone; 28. Second positioning zone; 29. ​​Card strip; 30. Arc edge; 31. Friction pattern; 32. Card slot.

[0035] 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

[0036] The following is a detailed description of an eyelid opening device for ophthalmic care provided by the present invention in combination 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 alternative methods for 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.

[0037] 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).

[0038] 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.

[0039] 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.

[0040] 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.

[0041] like Figures 1 to 10 As shown, an embodiment of the present invention provides an eyelid opening device for ophthalmic care, including a fixing frame 1, a threaded rod 6 is sleeved in the fixing frame 1, and support arms 3 are movably connected at both ends of the fixing frame 1, one end of the threaded rod 6 extends between the fixing frame 1 and the support arm 3 and is connected to an adjustment seat 2 through a bearing, both ends of the adjustment seat 2 are rotatably connected to a support rod 4, one end of the support rod 4 away from the adjustment seat 2 is rotatably connected to the support arm 3, and an eyelid opening hook 5 is fixedly connected to the end of the support arm 3. When the threaded rod 6 in the fixing frame 1 is locked by a threaded sleeve 12 and is in a working state, the rotating threaded rod 6 can be moved through the threaded rod 6 and the threaded sleeve The thread between 12 pushes the threaded rod 6 to move, and then the threaded rod 6 pushes the adjusting seat 2 to move between the fixed frame 1 and the support arm 3 through the bearing. During the displacement of the adjusting seat 2, the end of the support rod 4 connected to the adjusting seat 2 is driven to deflect, and the other end of the support rod 4 pushes the support arm 3 to deflect, and then the support arm 3 is unfolded, and the eyelid opening hook 5 is driven to open the patient's eyelids, which is convenient for subsequent medical staff to perform related operations of ophthalmic surgery. The structure of the above-mentioned eyelid opening hook 5 and the connection relationship between the adjusting seat 2, the support arm 3 and the support rod 4 are all prior art, and their principles and usage methods are the same as those of the prior art, which will not be elaborated here.

[0042] A plug-in slot 17 is provided in the middle of the fixing frame 1, and a support pad 8 and a joint ball 9 are provided on the outside of the fixing frame 1, and a threaded sleeve 12 is symmetrically installed in the plug-in slot 17; a connecting component is used to connect and fix the support pad 8 and the joint ball 9 to the fixing frame 1, and the connecting component is connected to the joint ball 9; a limiting component is used to limit and fix the threaded sleeve 12 in the plug-in slot 17, and the limiting component is connected to the threaded sleeve 12. The plug-in slot 17 provided in the middle of the fixing frame 1 is used to assemble the threaded sleeve 12 and part of the structure on the connecting component, and provide a movable space for the threaded sleeve 12, and the support pad 8 can be in contact with the patient's face, and then the heavier area on the fixing frame 1 is supported through the joint ball 9 and the connecting component. The eyelid opening device is supported, thereby maintaining the stability of the entire eyelid opening device during use, and no medical staff is required to provide support, which not only reduces the workload of medical staff, but also ensures the stability of the device during use. The connecting component can quickly and stably complete the connection and fixation between the support pad 8 and the joint ball 9 and the fixing frame 1, and can also be quickly removed, so that the disassembly and assembly operations of the support pad 8 and the joint ball 9 are efficient and fast. The limiting component can benefit the structure in the connecting component to lock the position of the threaded sleeve 12 in the plug-in groove 17, ensure the stability of the threaded sleeve 12 in normal working conditions, and release the lock on the threaded sleeve 12 after the connecting component is removed, so that the threaded rod 6 can be quickly adjusted for displacement, thereby improving the removal efficiency of the entire eyelid opening device.

[0043] In this embodiment, if Figures 1 to 5 As shown, a limiting plate 11 matched with the size of the threaded rod 6 is fixedly connected to the fixing frame 1, the threaded rod 6 is sleeved in the limiting plate 11, and a knob is fixedly connected to the end of the threaded rod 6 away from the support arm 3. When the threaded sleeve 12 is locked, the threaded rod 6 and the fixing frame 1 are sleeved and connected through the limiting plate 11. The threaded rod 6 can slide in the limiting plate 11 without being constrained by the thread between the threaded sleeve 12 and the threaded rod 6, and then the relative position between the threaded rod 6 and the fixing frame 1 can be quickly adjusted, which indirectly enables the spacing between the eyelid hooks 5 to be quickly adjusted, so that after the ophthalmic surgery is completed, the entire eyelid opening device can be quickly removed.

[0044] In this embodiment, if Figures 2 to 3 as well as Figures 8 to 10As shown, the connecting component includes a second fixing plate 25 fixedly connected to the top of the joint ball 9 and a first fixing plate 7 sleeved on the outside of the fixing frame 1, and a plug-in column 10 is fixedly connected between the first fixing plate 7 and the second fixing plate 25. The shape of the plug-in column 10 is adapted to the shape of the plug-in slot 17. The connecting component consists of three parts: upper, middle and lower parts. The upper area is the first fixing plate 7, the middle area is the plug-in column 10, and the lower area is the second fixing plate 25. When a connection relationship is formed between the entire connecting component and the fixing frame 1, the first fixing plate 7 and the second fixing plate 25 are both attached to the outside of the fixing frame 1, and at this time, the plug-in column 10 is plugged into the inside of the plug-in slot 17.

[0045] A first positioning area 27 is provided between the first fixing plate 7 and the plug-in column 10, and a second positioning area 28 is provided between the second fixing plate 25 and the plug-in column 10. A clamping strip 29 is fixedly connected to the surface of the first fixing plate 7 facing the outside of the fixing frame 1, and a clamping groove 32 matching the shape of the clamping strip 29 is provided on the outside of the fixing frame 1. The first positioning area 27 and the second positioning area 28 are both used for positioning the connecting component. When the connecting component and the fixing frame 1 are connected and fixed, the entire connecting component is sleeved on the outside of the fixing frame 1. The connecting and fixing operation is simple and convenient. When the sleeve is not in place, relative sliding may occur between the fixing frame 1 and the connecting component. When the fixing is stable, the clamping strip 29 on the first fixing plate 7 is embedded in the clamping groove 32 on the outside of the fixing frame 1. The first positioning area 27 and the second positioning area 28 are both in close contact with the outside of the fixing frame 1, which helps medical staff understand the status of the connecting component.

[0046] In this embodiment, if Figures 8 to 10 As shown, a second weakened groove 24 is provided at the connection between the first fixing plate 7 and the first positioning area 27, and the thickness of the second weakened groove 24 is less than the thickness of other areas on the first fixing plate 7, so that the strength of the first fixing plate 7 at the second weakened groove 24 is weaker, and the first fixing plate 7 as a whole is more likely to deform and bend at the second weakened groove 24 after being subjected to external force, and the end of the first fixing plate 7 is bent in a direction away from the outside of the fixing frame 1 and forms an arc-shaped edge 30, and the outside of the arc-shaped edge 30 is provided with uniformly distributed friction lines 31, and when the friction lines 31 on the arc-shaped edge 30 come into contact with the fingers of medical staff, It can increase the contact area between the fingers of medical staff, and then increase the friction between the fingers of medical staff, and play an anti-slip role. The setting of the arc edge 30 makes a certain gap between the end of the first fixing plate 7 and the outer surface of the fixing frame 1, so that it is easy for medical staff to press the first fixing plate 7 with their fingers when disassembling the connecting component. When the first fixing plate 7 is pressed, the first fixing plate 7 can be deformed and bent at the second weakened groove 24, and then drive the card strip 29 on the first fixing plate 7 to withdraw from the card slot 32, thereby releasing the connection and fixing state between the fixing frame 1 and the connecting component, making the disassembly operation of the connecting component also simple and convenient.

[0047] In this embodiment, if Figures 2 to 4 As shown, the support pad 8 is connected to the bottom of the second fixing plate 25 through a joint ball 9, and the bottom surface of the support pad 8 is provided with evenly distributed arc grooves 15. The support pad 8 is a sheet-like structure as a whole, and the thickness value of the end area connected to the joint ball 9 is larger, and the thickness value of the end area away from the joint ball 9 is thinner. The larger thickness value of the connection area can ensure the strength of the connection between the support pad 8 and the joint ball 9, and the stability is stronger. The end of the second fixing plate 25 away from the second positioning area 28 is provided with a bevel 26. The design of the bevel 26 cooperates with the design of the arc edge 30, so that the opening size between the first fixing plate 7 and the second fixing plate 25 is larger, and the opening area is larger than the side area of ​​the fixing frame 1, so that the entire connecting component is conveniently set to the outside of the fixing frame 1. The support pad 8 is provided with evenly distributed air holes 16, and the joint ball 9 between the support pad 8 and the second fixing plate 25 allows the support pad 8 to pass through The joint ball 9 can be adjusted in multiple directions, and the position of the support pad 8 can be easily changed to adapt to the facial shapes of different patients, thereby providing a good supporting effect for the entire eyelid opening device. The principle and usage method of the joint ball 9 are the same as those in the prior art and will not be elaborated on here. At the same time, the arc groove 15 opened on the bottom surface of the support pad 8 makes the bottom structure of the support pad 8 divided into multiple areas by the arc groove 15. The setting of the arc groove 15 makes the thickness value at the junction between these areas thinner and the strength weaker, so that the support pad 8 can be deformed in the thinned area, and has a stronger deformation ability, which can better contact and adapt with the patient's face. The opening of the air hole 16 allows the support pad 8 to ensure the ventilation effect through the air hole 16 after contacting the patient's face and cooperating with the joint ball 9 to provide support, thereby avoiding the support area of ​​the support pad 8 from producing sweat due to airtightness, affecting the stability of the support effect of the support pad 8.

[0048] In this embodiment, if Figures 5 to 7 as well as Figures 8 to 10As shown, the limiting assembly includes an elastic sheet 14 fixedly connected to the outside of the threaded sleeve 12, a compression zone 18 is provided in the middle of the elastic sheet 14, and the compression zone 18 is fixedly connected to the outside of the threaded sleeve 12 through a connection zone 21, and limiting strips 13 are provided at both upper and lower ends of the threaded sleeve 12, and a thread matching the outside of the threaded rod 6 is provided on the inner side wall of the threaded sleeve 12, and the limiting strip 13 is in close contact with the inner side wall of the plug-in groove 17, so that the threaded sleeve 12 is limited and guided by the limiting strip 13 during the displacement of the plug-in groove 17, so as to avoid the threaded sleeve 12 from being misplaced during the displacement of the plug-in groove 17, and the threaded sleeve 12 is a semi-cylindrical structure. When the limiting component is not working, that is, when the connecting component is not connected and fixed to the fixing frame 1, the elastic sheet 14 relies on its own elastic force to limit the threaded sleeve 12, and the threaded sleeve 12 is separated from the outside of the threaded rod 6. The thread on the inner wall of the threaded sleeve 12 does not contact the outside of the threaded rod 6, and the threaded rod 6 is not locked. At this time, the threaded rod 6 can move freely, so as to facilitate medical staff to quickly adjust the spacing of the eyelid hooks 5. When the spacing of the eyelid hooks 5 is adjusted to the minimum value, the thread position of the outside of the threaded rod 6 corresponds exactly to the thread position on the inner wall of the threaded sleeve 12, avoiding the situation where the threaded sleeve 12 cannot lock the threaded rod 6 after the connecting component is connected.

[0049] The upper and lower ends of the elastic sheet 14 are fixedly connected to the inner side wall of the plug-in slot 17 through the fixing area 20, and the elastic sheet 14 is provided with first weakened grooves 19 symmetrically distributed on both sides of the pressure-bearing area 18. The thickness values ​​of the fixing area 20, the pressure-bearing area 18 and the first weakened groove 19 decrease in sequence. The fixing area 20 is used for the connection and fixation between the elastic sheet 14 and the inner side wall of the plug-in slot 17. The thickness value is larger and the strength is higher, so as to ensure the stability of the connection between the elastic sheet 14 and the inner side wall of the plug-in slot 17. The first weakened groove 19 The thickness value is thinner, and thinning is formed at the corresponding position on the elastic sheet 14, so that the elastic sheet 14 can be deformed at the elastic sheet 14 after being subjected to external force. The shape of the pressure-bearing area 18 is adapted to the shape of the pressing area 22, and can fully fit with the outer surface of the pressing area 22 after being squeezed by the pressing area 22, ensuring the squeezing effect of the pressing area 22 on the entire limit assembly. The outside of the plug-in column 10 is provided with a pressing area 22 adapted to the shape of the pressure-bearing area 18, and the pressing area 22 is away from the first A guide surface 23 is provided at one end of the positioning area 27. When installing the connection assembly, the end of the plug-in column 10 provided with the guide surface 23 is inserted into the plug-in groove 17. The outer portion of the guide surface 23 contacts the pressure area 18 on the elastic sheet 14. As the plug-in column 10 is inserted into the plug-in groove 17, the pressure area 18 on the elastic sheet 14 is gradually squeezed until the plug-in column 10 completely enters the plug-in groove 17. The installation and fixation of the connection assembly is completed. At this time, the elastic sheet 14 is squeezed by the pressing area 22. The threaded sleeve 12 is tightly fitted to the outside of the threaded rod 6, and a threaded connection is formed between the threaded sleeve 12 and the threaded rod 6, so that the threaded rod 6 can stably push the adjustment seat 2 to move after rotation, and complete the installation operation of the support pad 8 and the joint ball 9. At the same time, the limit assembly is driven to lock the threaded sleeve 12. When the elastic sheet 14 is squeezed by the pressing area 22, the reaction force of the elastic sheet 14 also acts on the plug-in column 10, further strengthening the connection strength between the connecting assembly and the fixing frame 1.

[0050] The working principle of the technical solution provided by the present invention is as follows: when in use, the support pad 8 and the fixing frame 1 are in a separated state, the plug-in column 10 is not inserted into the plug-in slot 17 on the fixing frame 1, the two threaded sleeves 12 are separated under the elastic force of the elastic sheet 14, the threaded rod 6 is not locked, the threaded rod 6 is pulled to make the threaded rod 6 slide in the limit plate 11, and the position of the adjustment seat 2 is adjusted so that the spacing of the eyelid hooks 5 is at the minimum value.

[0051] Take out the support pad 8, connect and install it between the plug-in column 10 and the fixing frame 1, and insert one end of the plug-in column 10 with the guide surface 23 into the plug-in groove 17. The outer side of the guide surface 23 contacts the pressure area 18 on the elastic sheet 14, and as the plug-in column 10 is inserted into the plug-in groove 17, the pressure area 18 on the elastic sheet 14 is gradually squeezed until the plug-in column 10 completely enters the plug-in groove 17, and the first positioning area 27 and the second positioning area 28 contact the outer surface of the fixing frame 1. At this time, the clamping strip 29 on the first fixing sheet 7 is clamped with the clamping groove 32 on the fixing frame 1. The elastic sheet 14 is squeezed by the pressing area 22 so that the threaded sleeve 12 fits tightly against the outside of the threaded rod 6, so that a threaded connection is formed between the threaded sleeve 12 and the threaded rod 6, completing the assembly of the entire eyelid opening device before use.

[0052] Place the assembled eyelid stretching device on the patient's face, with the eyelid hook 5 corresponding to the position of the eyelid, and the support pad 8 in contact with the patient's facial skin. The specific position of the support pad 8 is adjusted by the joint ball 9 to provide support for the fixed frame 1 of the entire eyelid stretching device. Pinch the knob at the end of the threaded rod 6 and turn the threaded rod 6. After the threaded rod 6 rotates, it moves under the action of the thread on the inner wall of the threaded sleeve 12 and pushes the adjustment seat 2 to move. After the adjustment seat 2 moves, it pushes the support rod 4 to deflect and unfolds the support arm 3, thereby driving the eyelid hook 5 to stretch the patient's eyelid to perform the corresponding ophthalmic surgery.

[0053] After the operation is completed, one hand pinches the outside of the fixing frame 1, and the other hand uses the fingers to move the arc-shaped edge 30 on the first fixing plate 7, so that the first fixing plate 7 is deformed and bent at the second weakened groove 24, driving the card strip 29 to withdraw from the card slot 32, releasing the lock on the first fixing plate 7, and the first fixing plate 7, the plug-in column 10 and the second fixing plate 25 are pulled out of the outside of the fixing frame 1 as a whole. The pressing area 22 releases the extrusion limit on the elastic plate 14, and the elastic plate 14 serves under the action of its own elastic force and drives the threaded sleeve 12 to separate, releasing the lock on the threaded rod 6. Pulling the threaded rod 6 again can quickly reduce the distance between the eyelid hooks 5, release the open state of the patient's eyelids, and remove the entire eyelid opening device, completing the entire use process of the eyelid opening device for ophthalmic care.

[0054] 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.

[0055] 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 eyelid opening device for ophthalmic care, characterized in that: The invention comprises a fixing frame, a threaded rod is sleeved in the fixing frame, and support arms are movably connected to two ends of the fixing frame, one end of the threaded rod extends between the fixing frame and the support arm and is connected to an adjustment seat through a bearing, both ends of the adjustment seat are rotatably connected to a support rod, one end of the support rod away from the adjustment seat is rotatably connected to the support arm, an eyelid opening hook is fixedly connected to the end of the support arm, a plug-in slot is provided in the middle of the fixing frame, and a support pad and a joint ball are provided on the outside of the fixing frame, and a threaded sleeve is symmetrically installed in the plug-in slot; A connecting assembly, used for connecting and fixing the support pad and the joint ball to the fixing frame, wherein the connecting assembly is connected to the joint ball; A limiting assembly, used for limiting and fixing the threaded sleeve in the inserting groove, wherein the limiting assembly is connected to the threaded sleeve; The limiting assembly includes an elastic sheet fixedly connected to the outside of the threaded sleeve, a compression zone is provided in the middle of the elastic sheet, and the compression zone is fixedly connected to the outside of the threaded sleeve via a connection zone; Limiting strips are arranged at both the upper and lower ends of the threaded sleeve, and a thread matching the outer part of the threaded rod is provided on the inner side wall of the threaded sleeve, and the limiting strip is in close contact with the inner side wall of the plug-in slot; The upper and lower ends of the elastic sheet are fixedly connected to the inner side wall of the plug-in slot through a fixed area, and the elastic sheet is provided with a first weakened groove symmetrically distributed on both sides of the pressure zone, and the thickness values ​​of the fixed area, the pressure zone and the first weakened groove decrease successively.

2. The eyelid opening device for ophthalmic care according to claim 1, characterized in that: A limiting plate matched with the size of the threaded rod is fixedly connected in the fixing frame, the threaded rod is sleeved in the limiting plate, and a knob is fixedly connected to one end of the threaded rod away from the supporting arm.

3. The eyelid opening device for ophthalmic care according to claim 2, characterized in that: The connecting assembly includes a second fixing plate fixedly connected to the top of the joint ball and a first fixing plate sleeved on the outside of the fixing frame, a plug-in column is fixedly connected between the first fixing plate and the second fixing plate, and the shape of the plug-in column is adapted to the shape of the plug-in slot.

4. The eyelid opening device for ophthalmic care according to claim 3, characterized in that: A first positioning area is provided between the first fixing plate and the plug-in column, a second positioning area is provided between the second fixing plate and the plug-in column, a clamping strip is fixedly connected to a surface of the first fixing plate facing the outside of the fixing frame, and a clamping slot matching the shape of the clamping strip is provided on the outside of the fixing frame.

5. The eyelid opening device for ophthalmic care according to claim 4, characterized in that: A second weakened groove is provided at the connection between the first fixing plate and the first positioning area, and the end of the first fixing plate is bent away from the outside of the fixing frame to form an arc-shaped edge, and the outside of the arc-shaped edge is provided with uniformly distributed friction lines.

6. The eyelid opening device for ophthalmic care according to claim 5, characterized in that: The support pad is connected to the bottom of the second fixing plate through the joint ball, and the bottom surface of the support pad is provided with evenly distributed arc grooves, the end of the second fixing plate away from the second positioning area is provided with an inclined surface, and the support pad is provided with evenly distributed air holes.

7. The eyelid opening device for ophthalmic care according to claim 4, characterized in that: The plug-in column is provided with a pressing area matched with the shape of the pressed area on the outside, and a guide surface is provided on the pressing area at one end away from the first positioning area.

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