Fundus observation system and surgical microscope

Abstract

The present disclosure relates to the field of microscope technology, and specifically discloses a fundus observation system and a surgical microscope. The system includes a focusing body and a fundus mirror assembly that is detachably hinged to the focusing body, the fundus mirror assembly includes a hinged rod, the focusing body includes a housing, a first connecting member and a second connecting member, the first connecting member and the second connecting member are both connected to the housing, the first connecting member is penetrated by an axis accommodating through hole, the second connecting member is provided with an axis accommodating blind hole, the axis of the axis accommodating through hole coincides with the axis of the axis accommodating blind hole; the first connecting member is provided with an installation through groove, the bottom of the installation through groove is connected to the side of the axis accommodating through hole, the length direction of the axis accommodating through hole is the same as the length direction of the installation through groove, and the aperture of the axis accommodating through hole is smaller than the groove width of the installation through groove, one end of the hinged rod is rotationally matched with the axis accommodating through hole, and the other end is rotationally matched with the second connecting member. The system reduces the difficulty of disassembling and assembling the fundus mirror assembly, and helps to optimize the disinfection method of the fundus observation system.

Description

Technical Field

[0001] The present disclosure relates to the technical field of microscopes, and in particular to a fundus observation system and a surgical microscope. Background Art

[0002] The surgical microscope is a general-purpose equipment widely used in medical and health institutions, laboratories and research institutes for pathological research, clinical experiments and routine inspections.

[0003] In the prior art, when a conventional fundus observation system is disinfected, the entire system (including electronic parts such as motors and cables) needs to be disinfected together. In a high-temperature, high-pressure, and high-humidity disinfection environment, there is a risk of damaging electronic products or affecting product life. At the same time, the fundus mirror assembly on the fundus observation system is also difficult to disassemble and assemble. Summary of the invention

[0004] The purpose of the present disclosure is to provide a fundus observation system and a surgical microscope to optimize the disinfection method of the fundus observation system and reduce the difficulty of disassembly and assembly of the fundus microscope assembly.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A fundus observation system comprises a focusing body and an ophthalmoscope assembly detachably hinged to the focusing body, the ophthalmoscope assembly comprises a hinged rod, the focusing body comprises a shell, a first connecting member and a second connecting member, the first connecting member and the second connecting member are both connected to the shell, the first connecting member is penetrated by an axis accommodating through hole, the second connecting member is provided with an axis accommodating blind hole, the axis of the axis accommodating through hole coincides with the axis of the axis accommodating blind hole; the first connecting member is provided with an installation through groove, the groove bottom of the installation through groove is connected to the side of the axis accommodating through hole, the length direction of the axis accommodating through hole is the same as the length direction of the installation through groove, and the aperture of the axis accommodating through hole is smaller than the groove width of the installation through groove, one end of the hinged rod is rotatably engaged with the axis accommodating through hole, and the other end is rotatably engaged with the second connecting member.

[0007] As an optional technical solution for the fundus observation system, the hinged rod includes a central axis and two edge axes, and the two edge axes are coaxially fixed to the two ends of the central axis, and the side walls of the edge axes are matched and fit with the side walls of the axis accommodating through hole and the side walls of the axis accommodating blind hole, respectively, and the diameter of the edge axis is larger than the diameter of the central axis.

[0008] As an optional technical solution of the fundus observation system, the width of the mounting through slot is larger than the diameter of the central axis and smaller than the diameter of the peripheral axis.

[0009] As an optional technical solution of the fundus observation system, the first connecting member has elastic deformation capability.

[0010] As an optional technical solution of the fundus observation system, the fundus observation system further comprises a shell, and the shell is detachably sleeved on at least a part of the outer area of ​​the shell.

[0011] As an optional technical solution of the fundus observation system, the housing covers the top of the installation slot.

[0012] As an optional technical solution for the fundus observation system, the housing seals an end of the shaft accommodating through hole away from the second connecting member.

[0013] As an optional technical solution of the fundus observation system, a mounting surface is provided on the side of the shell, the first connecting member and the second connecting member are both screwed to the mounting surface, and the outer shell does not cover the mounting surface.

[0014] As an optional technical solution of the fundus observation system, the fundus ophthalmoscope assembly further includes a positioning rod, the hinged rod is connected to the positioning rod, and the positioning rod is rotationally matched with the focusing body through the hinged rod.

[0015] A surgical microscope comprises a microscope body and the above fundus observation system.

[0016] Beneficial effects of the present disclosure:

[0017] The fundus observation system adopts the cooperation of the end of the hinged rod with the shaft accommodating through hole, the installation groove and the shaft accommodating blind hole to realize the detachable hinge of the fundus mirror assembly on the focusing body; through the limitation that the axis of the shaft accommodating through hole coincides with the axis of the shaft accommodating blind hole, the hinged rod and the first connecting member and the second connecting member can rotate and cooperate smoothly; combined with the limitation that the aperture of the shaft accommodating through hole is smaller than the slot width of the installation groove, the doctor can make the hinged rod pass through the installation groove and place it in the shaft accommodating through hole, and then push the hinged rod along the depth direction of the shaft accommodating blind hole to make the end of the hinged rod be placed in the shaft accommodating blind hole. The above improvements realize the detachable hinge of the fundus mirror assembly on the focusing body, which is easy to operate and has high disassembly and assembly efficiency, ensuring the long-term stable operation of the fundus observation system, facilitating the doctor to disinfect the fundus mirror assembly after use, and helping to improve the doctor's experience of using the fundus observation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the structure of a fundus observation system provided by an embodiment of the present disclosure;

[0019] Figure 2 is an exploded diagram of a fundus observation system provided by an embodiment of the present disclosure;

[0020] Figure 3 is a right view of the fundus observation system provided by an embodiment of the present disclosure in an observation state;

[0021] Figure 4 is a right side view of the fundus observation system provided by the embodiment of the present disclosure in the storage state;

[0022] Figure 5 is a schematic structural diagram of a housing provided by an embodiment of the present disclosure;

[0023] Figure 6 is a schematic structural diagram of a positioning rod provided in an embodiment of the present disclosure;

[0024] Figure 7 is a structural schematic diagram of the fundus observation system provided by an embodiment of the present disclosure when the focusing body is in a working position;

[0025] Figure 8 is a structural schematic diagram of the fundus observation system provided by an embodiment of the present disclosure when the focusing subject is in an avoidance position;

[0026] Fig. 9 is a structural schematic diagram of a focusing body provided by an embodiment of the present disclosure;

[0027] Fig.10 is a cross-sectional view of a focusing subject at a first viewing angle provided by an embodiment of the present disclosure;

[0028] Fig.11 is a cross-sectional view of a focusing subject at a second viewing angle provided by an embodiment of the present disclosure;

[0029] Fig.12 is a cross-sectional view of a focusing subject provided by an embodiment of the present disclosure at a third viewing angle;

[0030] Fig.13 is a cross-sectional view of a focusing subject at a fourth viewing angle provided by an embodiment of the present disclosure;

[0031] Fig.14 is a top view of a focusing subject provided by an embodiment of the present disclosure;

[0032] Fig.15 is an exploded diagram of a focusing subject provided by an embodiment of the present disclosure;

[0033] Fig.16 It is a structural schematic diagram of a transmission assembly, a drive assembly, a connecting rod unit and a matching plate provided in an embodiment of the present disclosure;

[0034] Fig.17 is a structural schematic diagram of a screw rod, a connecting rod unit and a matching plate provided in an embodiment of the present disclosure;

[0035] Fig.18 is a schematic diagram of the structure of a drive assembly and a gear set provided in an embodiment of the present disclosure;

[0036] Fig.19 is a schematic diagram of the structure of a fixing plate provided in an embodiment of the present disclosure;

[0037] Fig. 20 is a schematic structural diagram of a rotating assembly provided in an embodiment of the present disclosure;

[0038] Fig.21 is a schematic structural diagram of a first connecting member provided in an embodiment of the present disclosure;

[0039] Fig. 22 It is a schematic diagram of the structure of the second connecting member provided in an embodiment of the present disclosure.

[0040] In the figure:

[0041] 1. Fixed plate; 101. Plate body; 102. Indexing buckle; 2. Rotating assembly; 201. Rotating base; 202. Concave portion; 203. Bearing; 3. Housing; 4. Positioning rod; 5. Focusing body; 6. Articulated rod; 61. Edge axis; 62. Central axis; 7. Fundus lens; 8. Fundus lens frame; 9. First permanent magnet; 10. Second permanent magnet; 11. Housing; 12. Focusing lens frame; 13. Manual knob; 14. Driving unit; 15. Gear set; 16. Screw; 1 7. First slider; 18. Connecting rod unit; 181. First connecting rod; 182. Second connecting rod; 19. Focusing lens; 20. Third permanent magnet; 21. Second slider; 22. Second bolt; 23. First bolt; 24. First connecting member; 241. Shaft accommodating through hole; 242. Mounting through groove; 25. Second connecting member; 251. Shaft accommodating blind hole; 26. Protective cover; 27. Transmission assembly; 28. Matching plate; 29. ​​Drive assembly; 30. Transmission base; 31. Gear shaft. DETAILED DESCRIPTION

[0042] The technical solution of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0043] In the description of the present disclosure, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0045] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and cannot be understood as limiting the present disclosure.

[0046] like Figures 1 to 22 As shown, this embodiment provides a fundus observation system, which includes a focusing body 5, the focusing body 5 has a shell 11, a first slider 17, a second slider 21, a focusing assembly and a plurality of connecting rod units 18, the focusing assembly includes a focusing frame 12 and a focusing lens 19 arranged on the focusing frame 12, the connecting rod unit 18 includes a cross-hinged first connecting rod 181 and a second connecting rod 182, the two ends of the first connecting rod 181 are respectively hinged to the second slider 21 and the shell 11, the two ends of the second connecting rod 182 are respectively hinged to the focusing assembly and the first slider 17, the first slider 17 is slidably arranged on the shell 11 along the sliding direction, and the second slider 21 is slidably arranged on the focusing assembly along the sliding direction, so that the focusing lens 19 can move relative to the shell 11 along the focusing direction, and the focusing direction is perpendicular to the focusing lens 19.

[0047] In this embodiment, the fundus observation system adopts a connecting rod unit 18 including a cross-hinged first connecting rod 181 and a second connecting rod 182 to realize the relative position change between the focusing assembly and the housing 11, which has the advantages of high lifting stability and high focusing accuracy. Combined with the setting of the first slider 17 and the second slider 21, the movement of the first slider 17 along the sliding direction is converted into the movement of the focusing assembly in the focusing direction through the connecting rod unit 18, thereby completing the focusing operation of the focusing lens 19. The structure of the connecting rod unit 18 realizes the change of the driving direction, thereby reducing the risk of the focusing assembly causing the position of the focusing assembly to be offset due to its own weight, ensuring the precise placement of the focusing lens 19, ensuring the accuracy of the focusing action, and improving the doctor's experience. The above improvements enhance the ability to adjust the focal length of the fundus observation system, ensuring that even if the focal length of the system changes when switching the fundus scope 7, the entire surgical microscope can have the same focal length through focusing, meeting the application requirements in different scenarios.

[0048] In this embodiment, the focusing body 5 also includes a driving component 29 and a transmission component 27. The transmission component 27 includes a gear group 15 and a screw rod 16 for transmission cooperation. The first slider 17 is transmission-connected to the screw rod 16. The driving component 29 can drive the screw rod 16 to rotate through the gear group 15 to drive the first slider 17 to move back and forth along the sliding direction.

[0049] The transmission assembly 27 uses a gear set 15 for transmission, which ensures the transmission effect while helping to optimize the space of the fundus observation system, that is, focusing can be achieved in a limited small space; and with the help of the transmission cooperation between the first slider 17 and the screw rod 16, it is ensured that while the first slider 17 moves along the sliding direction, the position displacement of the focusing lens 19 due to accidental movement is avoided as much as possible, thereby further ensuring the ability to adjust the focal length of the fundus observation system.

[0050] In one implementation of the present embodiment, the drive assembly 29 includes a drive unit 14, and the output end of the drive unit 14 is meshed with the gear set 15 for transmission. In another implementation of the present embodiment, the drive assembly 29 includes a gear shaft 31 and a manual knob 13, the gear shaft 31 is rotatably connected to the housing 11, the manual knob 13 is coaxially fixed to the end of the gear shaft 31 and the manual knob 13 is located outside the housing 11, and the gear shaft 31 is meshed with the gear set 15 for transmission. In another implementation of the present embodiment, the drive unit 14 and the manual knob 13 can drive the gear set 15 at the same time. Specifically, the drive assembly 29 also includes a transmission base 30, the drive unit 14 is mounted on the transmission base 30, and the gear shaft 31 is rotatably connected to the transmission base 30.

[0051] By adopting the above design of this embodiment, the electric drive, manual drive and hybrid drive of the first slider 17 can be realized, providing doctors with a variety of focusing options, thereby improving the flexibility of driving the first slider 17 and the accuracy of position adjustment of the first slider 17. The use of the hybrid drive method is helpful to improve the position adjustment of the first slider 17. Those skilled in the art can use the solution of firstly electrically coarsely adjusting the first slider 17 to the vicinity of the target position by the driving unit 14, and then manually fine-adjusting the position of the first slider 17 by the manual knob 13, so as to meet the accuracy requirements of the position adjustment of the first slider 17 and improve the efficiency of the position adjustment.

[0052] Specifically, the driving unit 14 includes a motor. The motor can be connected to an external communication module for communication. The communication module is used to control the action of the driving unit 14, and the position of the first slider 17 can be adjusted by electric driving.

[0053] Exemplarily, a protective cover 26 for protecting the manual knob 13 is also sleeved on the manual knob 13 .

[0054] In this embodiment, the sliding direction and the focusing direction are perpendicular to each other, the sliding direction is parallel to the plane where the connecting rod unit 18 is located, and the focusing direction is parallel to the plane where the connecting rod unit 18 is located.

[0055] By adopting the above design of this embodiment, the layout of the fundus observation system can be optimized, thereby simplifying the structure of the fundus observation system, reducing the surgical space occupied by the fundus observation system, and helping to reduce the difficulty of interaction between the doctor and the fundus observation system.

[0056] Exemplarily, the focusing assembly further includes a matching plate 28 detachably connected to the focusing lens frame 12, a sliding groove is provided on the matching plate 28, and the sliding groove and the bottom surface of the focusing lens frame 12 form a slide rail cavity, and the second slider 21 is slidably arranged in the slide rail cavity. Through the split design of the matching plate 28 and the focusing lens frame 12, the processing difficulty of the slide rail cavity is reduced, and the manufacturing cost of the focusing assembly is reduced. The above improvements also facilitate the disassembly, assembly and maintenance of the focusing assembly, which helps to improve the production efficiency of the fundus observation system.

[0057] In one embodiment, two connecting rod units 18 are provided, and the two connecting rod units 18 are respectively arranged at both ends of the focusing assembly. The arrangement of the two connecting rod units 18 at both ends of the focusing assembly helps to improve the stress condition of the focusing assembly, reduce the risk of position deviation of the focusing lens 19, and improve the working stability of the focusing assembly.

[0058] In one implementation of this embodiment, a first transmission rod is connected to the first slider 17, the first transmission rod extends along the length direction of the focusing assembly, and the two ends of the first transmission rod are respectively hinged to the two second connecting rods 182. In another implementation of this embodiment, a second transmission rod is connected to the second slider 21, the second transmission rod extends along the length direction of the focusing assembly, and the two ends of the second transmission rod are respectively hinged to the two first connecting rods 181. In another implementation of this embodiment, the first transmission rod is connected to the first slider 17, and the second transmission rod is connected to the second slider 21.

[0059] By adopting the arrangement of the first transmission rod and the second transmission rod, the smooth articulation between the slider and the connecting rod is achieved, and the smooth transmission of the connecting rod unit 18 is achieved. The structure of the transmission rod passing through the slider is simple and reliable, occupies a small space and has high connection stability.

[0060] In this embodiment, the focusing lens 19 is fixedly connected to the focusing frame 12. The above design of this embodiment can avoid the positional displacement of the focusing lens 19 relative to the focusing frame 12, thereby ensuring the long-term stable operation of the focusing assembly and reducing the maintenance frequency of the fundus observation system.

[0061] The fundus observation system includes a focusing body 5 and an ophthalmoscope assembly detachably hinged on the focusing body 5, the ophthalmoscope assembly includes a hinged rod 6, the focusing body 5 includes a shell 11, a first connecting member 24 and a second connecting member 25, the first connecting member 24 and the second connecting member 25 are both connected to the shell 11, the first connecting member 24 is penetrated by an axis accommodating through hole 241, the second connecting member 25 is provided with an axis accommodating blind hole 251, the axis of the axis accommodating through hole 241 coincides with the axis of the axis accommodating blind hole 251; the first connecting member 24 is provided with an installation groove 242, the bottom of the installation groove 242 is connected to the side of the shaft accommodating through hole 241, the length direction of the shaft accommodating through hole 241 is the same as the length direction of the installation groove 242, and the aperture of the shaft accommodating through hole 241 is smaller than the groove width of the installation groove 242, one end of the hinged rod 6 is rotatably matched with the shaft accommodating through hole 241, and the other end is rotatably matched with the second connecting member 25.

[0062] In the present embodiment, the fundus observation system adopts the cooperation of the end of the hinged rod 6 with the shaft accommodating through hole 241, the mounting through groove 242 and the shaft accommodating blind hole 251 to realize the detachable hinge of the fundus mirror assembly on the focusing body 5; by the limitation that the axis of the shaft accommodating through hole 241 coincides with the axis of the shaft accommodating blind hole 251, the hinged rod 6 and the first connecting member 24 and the second connecting member 25 can all rotate and cooperate smoothly; combined with the limitation that the aperture of the shaft accommodating through hole 241 is smaller than the slot width of the mounting through groove 242, the doctor can make the hinged rod 6 pass through the mounting through groove 242 and be placed in the shaft accommodating through hole 241, and then by pushing the hinged rod 6 along the depth direction of the shaft accommodating blind hole 251, the end of the hinged rod 6 can be placed in the shaft accommodating blind hole 251. The above improvements realize the detachable hinge of the fundus mirror assembly on the focusing body 5, which is easy to operate and has high disassembly and assembly efficiency, ensuring the long-term stable operation of the fundus observation system, facilitating the doctor to disinfect the fundus mirror assembly after use, and helping to improve the doctor's experience of using the fundus observation system.

[0063] Specifically, the first connecting member 24 and the second connecting member 25 are both screwed to the outer wall of the housing 11 through the first bolts 23 .

[0064] In this embodiment, the hinged rod 6 includes a central axis 62 and two edge axes 61. The two edge axes 61 are coaxially fixed to the two ends of the central axis 62. The side walls of the edge axes 61 are matched and fitted with the side walls of the shaft receiving through hole 241 and the side walls of the shaft receiving blind hole 251, respectively, and the diameter of the edge axes 61 is larger than the diameter of the central axis 62. The design of arranging the central axis 62 between the two edge axes 61 can achieve an optimized design of the structure of the hinged rod 6 and reduce the production cost of the hinged rod 6. At the same time, by virtue of the limitation that the diameter of the edge axis 61 is larger than the diameter of the central axis 62, the central axis 62 can flexibly pass through the shaft receiving through hole 241, thereby reducing the difficulty of disassembling and assembling the fundus lens assembly on the focusing body 5, providing more solutions for disassembling and assembling actions, thereby helping to reduce the workload of doctors, improve the disassembly and assembly efficiency of doctors, and improve the use experience of doctors.

[0065] Furthermore, the slot width of the installation slot 242 is greater than the diameter of the central shaft 62 and less than the diameter of the edge shaft 61. The above definition enables the central shaft 62 to pass through the installation slot 242 while the edge shaft 61 cannot pass through the installation slot 242, thereby greatly simplifying the difficulty of disassembly and assembly for doctors. The doctor only needs to first allow the central shaft 62 to enter the shaft accommodating hole 241 from the installation slot 242, and then adjust the axis of the hinged rod 6 to coincide with the axis of the shaft accommodating hole 241, and then move the hinged rod 6 along its own length direction to the central shaft 62 and the shaft accommodating hole 241 and the matching shaft accommodating blind hole 251, so as to realize the assembly action of the hinged rod 6, and the above steps can be performed in reverse to complete the disassembly action of the hinged rod 6. The above structural definition is simple and reliable, with low production cost and high structural stability, and the risk of damage to each component is low, which effectively prolongs the service life of the fundus observation system and helps to achieve long-term stable operation.

[0066] In this embodiment, the first connecting member 24 has elastic deformation capability. The above improvements reduce the difficulty of assembling the hinge rod 6 on the first connecting member 24, greatly speed up the disassembly and assembly speed of the hinge rod 6, and the doctor only needs to apply external force to push the hinge rod 6 from the installation slot 242 into the shaft receiving hole 241, which is convenient to operate and has low disassembly and assembly difficulty, and helps to improve the disassembly efficiency of the fundus mirror assembly.

[0067] Exemplarily, the fundus observation system further includes a housing 3, which is detachably sleeved on at least a portion of the outer side of the housing 11. The design that the housing 3 is detachably sleeved on the housing 11 can realize surface protection of the housing 11, thereby facilitating the doctor to disinfect the housing 3 after use. The detachable connection design between the housing 3 and the fundus mirror assembly on the focusing body 5 can completely isolate the parts that the doctor can touch or need to ensure sterility from the electronic parts, and only the housing 3 and the fundus mirror assembly need to be removed for cleaning and disinfection. It is convenient for cleaning and disinfection after use, and it is easy to disassemble.

[0068] Specifically, the outer shell 3 is slidably matched with the shell body 11 , and the doctor only needs to press buttons on both sides of the outer shell 3 to directly remove it from the outer shell 3 .

[0069] Furthermore, the housing 3 covers the top of the installation slot 242 .

[0070] By limiting the structure of the outer shell 3, the purpose of closing the top of the mounting slot 242 can be achieved. The above limitation avoids the situation where the hinge rod 6 is separated from the first connecting member 24 from the mounting slot 242, avoids the risk of the fundus scope assembly accidentally separating from the focusing body 5, and ensures the long-term stable operation of the focusing body 5.

[0071] In this embodiment, the housing 3 closes an end of the shaft accommodating through hole 241 away from the second connecting member 25 .

[0072] By limiting the structure of the housing 3, the purpose of closing the opening of the shaft accommodating through hole 241 can be achieved. The above limitation prevents the hinged rod 6 from moving relative to the focusing body 5 along its own length direction, ensuring that the fundus scope assembly can only rotate around the hinged rod 6, thereby ensuring the stable operation of the fundus observation system. The risk of the fundus scope assembly accidentally detaching from the focusing body 5 is avoided, ensuring the long-term stable operation of the focusing body 5.

[0073] Exemplarily, a mounting surface is provided on the side of the housing 11, the first connecting member 24 and the second connecting member 25 are both screwed to the mounting surface, and the housing 3 does not cover the mounting surface. The above structural definition avoids positional conflicts between the housing 3 and the first connecting member 24, the second connecting member 25 and the fundus mirror assembly, and ensures the smooth operation of the fundus mirror assembly while ensuring the protective effect of the housing 3 on the housing 11.

[0074] This embodiment also provides a surgical microscope, including a microscope body, a fixing plate 1 and the above-mentioned fundus observation system. A wedge is provided at the end of the microscope body, and a dovetail groove is provided on the fixing plate 1. The wedge can be matched and connected with the dovetail groove.

[0075] In this embodiment, the surgical microscope adopts a design of matching the wedge block and the dovetail groove to achieve a detachable connection between the end of the microscope body and the fixed plate 1, thereby improving the structural flexibility of the fundus observation system, reducing the production cost of the surgical microscope, reducing the difficulty of the doctor's work, and helping to reduce the doctor's workload.

[0076] The fundus observation system is connected to the microscope body through a fixed plate 1, and the fixed plate 1 is fixedly connected to the microscope body. The fundus observation system includes a focusing lens 19 and a rotating component 2. The rotating component 2 is rotatably connected to the fixed plate 1, so that the fundus observation system rotating relative to the fixed plate 1 passes through multiple locking positions, and the multiple locking positions are divided into a working position and the remaining storage positions. When the fundus observation system is in the working position, the central axis of the focusing lens 19 coincides with the central axis of the fundus observation optical path of the microscope body. When the fundus observation system is in the storage position, the central axis of the focusing lens 19 deviates from the central axis of the fundus observation optical path of the microscope body.

[0077] In this embodiment, the fundus observation system is designed to pass through multiple locking positions when rotating relative to the fixed plate 1, so that the fundus observation system can maintain a fixed relative position with the microscope body at a specific position, which can effectively prevent the doctor from medical accidents caused by the fundus observation system sliding when the microscope body is pitching, thereby improving the safety of use. By dividing the locking position into a working position and a storage position, the fundus observation system in the working position can be matched with the microscope body, so that the fundus observation optical path of the microscope body and the focusing lens 19 can interact smoothly, thereby playing a focusing role and ensuring the smooth operation of the microscope body. The design that the fundus observation system can be rotated to the storage position enables the fundus observation system to complete position avoidance, thereby avoiding the situation where the fundus observation system collides with the patient, thereby improving the working environment of the fundus observation system, improving the doctor's experience of use, and helping to improve the work efficiency of the microscope body.

[0078] In this embodiment, all the storage positions include a retracted position, and when the fundus observation system rotates from the working position to the retracted position, the fundus observation system rotates 180° relative to the fixed plate 1. By setting the working position and the retracted position at 180°, it can be ensured that the doctor's force conditions in the pitching condition of the microscope body are similar, thereby ensuring that the position of the doctor at the working position and the retracted position will not easily produce positional deviation due to accidents. The above design optimizes the force conditions of the fundus observation system at the retracted position and ensures the accurate positioning of the fundus observation system at the retracted position.

[0079] Furthermore, all the storage positions include at least two avoidance positions and one retracted position, and the fundus observation system passes through at least one avoidance position when rotating clockwise or counterclockwise from the working position to the retracted position.

[0080] By dividing the storage position into an avoidance position and a retracted position, doctors can cope with different working conditions. When the observation is completed, there is no longer a need for the surgical microscope to work. At this time, the fundus observation system can be moved to the retracted position to accurately store the fundus observation system, thereby achieving the purpose of protecting the fundus observation system and reducing the risk of damage to the fundus observation system. When the fundus observation system moves to the avoidance position, the stroke of the fundus observation system is shorter. The purpose is to avoid the situation where the fundus observation system collides with the patient during the position adjustment of the surgical microscope. To this end, it is only necessary to move the fundus observation system out of the current position. Therefore, only a small rotation is required to achieve the purpose of avoidance, and it is also convenient for the fundus observation system to be reset in time. The design of setting at least one avoidance position in both the clockwise and counterclockwise directions can provide doctors with sufficient choices, help reduce the difficulty of operating the surgical microscope, and improve the doctor's experience.

[0081] In this embodiment, one of the fixed plate 1 and the rotating assembly 2 is convexly provided with an indexing buckle 102, and the other is concavely provided with a recessed portion 202. When the rotating assembly 2 rotating relative to the fixed plate 1 is in a locked position, the indexing buckle 102 is constrained by the recessed portion 202. When the rotating assembly 2 rotating relative to the fixed plate 1 is not in the locked position, the indexing buckle 102 can be separated from the recessed portion 202. Specifically, the indexing buckle 102 is provided on the fixed plate 1, and the recessed portion 202 is provided on the rotating assembly 2.

[0082] With the structural design of the indexing buckle 102 and the recessed portion 202, the relative position locking between the fundus observation system and the fixing plate 1 can be achieved. The above matching method is simple and reliable, with low production cost, good positioning effect and high working stability.

[0083] Further, the rotating assembly 2 includes a rotating base 201 and a bearing 203, one of the inner ring of the bearing 203 and the outer ring of the bearing 203 is fixedly connected to the fixed plate 1, and the other is fixedly connected to the rotating base 201, so that the rotating base 201 can rotate around the axis of the bearing 203. Specifically, the fixed plate 1 also includes a plate body 101, all the indexing buckles 102 are convexly arranged on the plate body 101, the second bolt 22 passes through the plate body 101 and is screwed to the outer ring of the bearing 203, and the rotating base 201 is fixedly connected to the inner ring of the bearing 203.

[0084] The design that the inner and outer rings of the bearing 203 are respectively fixed to the rotating base 201 and the plate body 101 is adopted to realize the rotation of the rotating base 201 relative to the fixed plate 1 around the axis of the bearing 203. The above structural design is simple and reliable, occupies a small space, has high working stability and long service life.

[0085] In this embodiment, there are multiple recessed portions 202 , all of which are evenly spaced around the axis of the bearing 203 , and there is at least one indexing buckle 102 . Specifically, there are two indexing buckles 102 symmetrically arranged about the axis of the bearing 203 .

[0086] By adopting the above definition, the smooth cooperation between the indexing buckle 102 and the recessed portion 202 can be achieved, ensuring that the indexing buckle 102 can be constrained in the recessed portion 202 when the fixing plate 1 is rotated to each locking position.

[0087] Exemplarily, the fundus observation system further includes a focusing body 5 and an ophthalmoscope assembly, the focusing body 5 is fixedly connected to the rotating assembly 2, the ophthalmoscope assembly further includes an ophthalmoscope 7 and a positioning rod 4, the middle portion of the positioning rod 4 is rotatably matched with the focusing body 5, and the ophthalmoscope assembly has an observation state in which the ophthalmoscope 7 is swung relative to the focusing body 5 to move away from the focusing body 5, and a storage state in which the ophthalmoscope 7 is close to the focusing body 5; in the observation state, the central axis of the ophthalmoscope 7 coincides with the central axis of the focusing lens 19. Specifically, the hinged rod 6 is connected to the positioning rod 4, and the positioning rod 4 is rotatably matched with the focusing body 5 through the hinged rod 6.

[0088] The fundusoscope assembly can be switched between the observation state and the storage state so that the fundusoscope assembly can be accurately placed in place when the surgical microscope is working. When stored, it is adsorbed on the focusing body 5 to reduce the occupied space. The above design achieves an optimized design of the fundusoscope assembly, helps to improve the doctor's user experience, and reduces the risk of damage to the fundusoscope assembly.

[0089] Specifically, when the doctor needs to observe the fundus of the patient, the fundus observation system is rotated to the working position, and the fundus mirror assembly is switched to the observation state, so that the fundus mirror 7 is in the imaging optical path, so that the entire surgical microscope meets the need to observe the fundus. When there is no need to observe the fundus of the patient, the fundus observation system is rotated to the retracted position, and the fundus mirror assembly is switched to the storage state, so that the fundus mirror 7 is kept away from the imaging optical path, thereby reducing the risk of collision between the fundus observation system and the patient.

[0090] Furthermore, a first permanent magnet 9 is provided on the focusing body 5, one end of the positioning rod 4 is fixedly connected to the fundus ophthalmoscope 7 through the fundus ophthalmoscope frame 8, and a second permanent magnet 10 is provided at one end of the positioning rod 4 close to the fundus ophthalmoscope 7; in the storage state, the first permanent magnet 9 absorbs the second permanent magnet 10.

[0091] The design of mutual magnetic attraction between the first permanent magnet 9 and the second permanent magnet 10 achieves the purpose of positioning the fundus ophthalmoscope assembly, thereby avoiding the fundus ophthalmoscope assembly from accidentally leaving the storage state, reducing the risk of damage to the fundus ophthalmoscope assembly, and ensuring the smooth operation of the fundus observation system.

[0092] In one implementation of this embodiment, in the observation state, the positioning rod 4 is stopped when one end of the positioning rod 4 away from the fundus scope 7 abuts against the outer wall of the focusing body 5. In another implementation of this embodiment, a third permanent magnet 20 is provided at one end of the positioning rod 4 away from the fundus scope 7, and a fourth permanent magnet is provided on the focusing body 5, and in the observation state, the fourth permanent magnet attracts the third permanent magnet 20.

[0093] The above design uses mutual magnetic attraction or force balance to achieve the purpose of limiting the ophthalmoscope assembly to the observation state, thereby ensuring that the ophthalmoscope assembly will not switch states due to accidents when the surgical microscope is working, thereby ensuring the observation effect of the surgical microscope and improving the doctor's experience.

[0094] Specifically, the first permanent magnet 9 , the second permanent magnet 10 , the third permanent magnet 20 and the fourth permanent magnet are all magnets.

[0095] In this embodiment, the fundus lens 7 is an aspherical lens. Specifically, the fundus lens 7 is fixed to the positioning rod 4 through the fundus lens frame 8. The aspherical lens can correct the image and solve the problems such as the distortion of the visual field, and can also make the lens lighter, thinner and flatter. Moreover, the aspherical lens has excellent impact resistance, which can ensure the long-term stable operation of the fundus lens assembly.

[0096] Obviously, the above embodiments of the present disclosure are merely examples for clearly illustrating the present disclosure, and are not intended to limit the implementation methods of the present disclosure. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the claims of the present disclosure.

Claims

1. A fundus observation system, comprising a focusing body (5) and an ophthalmoscope assembly detachably hinged to the focusing body (5), the ophthalmoscope assembly comprising a hinge rod (6), the focusing body (5) comprising a housing (11), a first connecting member (24) and a second connecting member (25), the first connecting member (24) and the second connecting member (25) both being connected to the housing (11), the first connecting member (24) having a shaft accommodating through hole (241) extending therethrough, the second connecting member (25) having a shaft accommodating blind hole (251), the shaft accommodating through hole (241) being provided therethrough The axis of the shaft accommodating blind hole (251) coincides with the axis of the shaft accommodating blind hole (251); the first connecting member (24) is provided with a mounting through groove (242); the bottom of the mounting through groove (242) is connected to the side of the shaft accommodating through hole (241); the length direction of the shaft accommodating through hole (241) is the same as the length direction of the mounting through groove (242); the aperture of the shaft accommodating through hole (241) is smaller than the width of the mounting through groove (242); one end of the hinged rod (6) is rotatably engaged with the shaft accommodating through hole (241), and the other end is rotatably engaged with the second connecting member (25); The hinge rod (6) comprises a central shaft (62) and two edge shafts (61), the two edge shafts (61) being coaxially fixed to two ends of the central shaft (62), the side walls of the edge shafts (61) respectively matching and fitting with the side walls of the shaft accommodating through hole (241) and the side walls of the shaft accommodating blind hole (251), and the diameter of the edge shaft (61) is greater than the diameter of the central shaft (62); The focusing body (5) further comprises a first slider (17), a second slider (21), a focusing assembly and a plurality of connecting rod units (18); the focusing assembly comprises a focusing lens frame (12) and a focusing lens (19) arranged on the focusing lens frame (12); the connecting rod unit (18) comprises a first connecting rod (181) and a second connecting rod (182) which are cross-hinged; the two ends of the first connecting rod (181) are respectively hinged to the second slider (21) and the housing (11); the two ends of the second connecting rod (182) are respectively hinged to the focusing assembly and the first slider (17); the first slider (17) is slidably arranged on the housing (11) along a sliding direction; the second slider (21) is slidably arranged on the focusing assembly along a sliding direction, so that the focusing lens (19) can move relative to the housing (11) along a focusing direction, and the focusing direction is perpendicular to the focusing lens (19).

2. The fundus observation system according to claim 1, wherein: The slot width of the installation through slot (242) is greater than the diameter of the central shaft (62) and smaller than the diameter of the edge shaft (61).

3. The fundus observation system according to claim 1, wherein: The first connecting member (24) has elastic deformation capability.

4. The fundus observation system according to claim 1, wherein: The fundus observation system further comprises an outer shell (3), wherein the outer shell (3) is detachably sleeved on at least a portion of the outer side of the housing (11).

5. The fundus observation system according to claim 4, wherein: The housing (3) covers the top of the installation slot (242).

6. The fundus observation system according to claim 4, wherein: The housing (3) closes an end of the shaft accommodating through hole (241) away from the second connecting member (25).

7. The fundus observation system according to claim 4, wherein: A mounting surface is provided on the side of the shell (11); the first connecting member (24) and the second connecting member (25) are both screwed to the mounting surface; and the outer shell (3) does not cover the mounting surface.

8. The fundus observation system according to any one of claims 1 to 7, wherein: The fundus ophthalmoscope assembly further comprises a positioning rod (4), the hinged rod (6) is connected to the positioning rod (4), and the positioning rod (4) is rotationally matched with the focusing body (5) via the hinged rod (6).

9. A surgical microscope, wherein: The invention comprises a microscope body and the fundus observation system according to any one of claims 1 to 8.

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