Tri-axial rotary-damped autofocus microscope

Abstract

The utility model relates to medical instrument technical field especially, more particularly to a three -axis rotation damping automatic focusing microscope. The utility model provides a three -axis rotation damping automatic focusing microscope, three -axis rotation damping automatic focusing microscope, include: base, casing assembly, install above base, casing assembly and base enclose a hollow chamber, lens assembly, install on base, a part of lens assembly is located in chamber, a part stretches out from base bottom, three -axis rotation subassembly, one end is connected with casing assembly, and opposite another end is connected with support, three -axis rotation subassembly includes first connecting arm, second connecting arm and third connecting arm. The utility model can improve the convenience of surgical microscope use.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a three-axis rotational damping autofocus microscope. Background Technology

[0002] Surgical microscopes are a type of medical device widely used in dentistry, neurosurgery, ophthalmology, and microsurgery. Their main function is to magnify and image the surgical area through a high-magnification optical system, enabling surgeons to perform delicate operations in a confined space. However, existing surgical microscopes have limited adjustment range in position and orientation, making it impossible to guarantee accurate lens alignment with the surgical site. Even when the lens is aligned with the surgical site, the microscope's position and orientation cannot remain stable, hindering the needs of delicate surgical procedures. Utility Model Content

[0003] In view of this, the present invention provides a three-axis rotational damping autofocus microscope to solve the technical problem of inconvenient position adjustment in existing surgical microscopes.

[0004] In a first aspect, this utility model provides a three-axis rotationally damped autofocus microscope, comprising: Base; A housing assembly is mounted above a base, and the housing assembly and the base form a hollow chamber; A lens assembly is mounted on a base, with a portion of the lens assembly located in the chamber and a portion extending from the bottom of the base; The three-axis rotating assembly is connected to the housing assembly at one end and to the bracket at the other end. The three-axis rotating assembly includes a first connecting arm, a second connecting arm, and a third connecting arm. The first connecting arm and the bracket are rotatably connected via a first damping shaft. The first connecting arm and the second connecting arm are connected via a second damping shaft. The second connecting arm and the third connecting arm are connected. The third connecting arm and the base are rotatably connected via a third damping shaft. The first damping shaft is located above the second damping shaft, and the second damping shaft is located above the third damping shaft. The axial direction of the first damping shaft is parallel to the rotation axis direction of the third damping shaft, and the axial direction of the second damping shaft is perpendicular to the axial direction of the first damping shaft.

[0005] Preferably, the first connecting arm includes a detachably connected first connecting member and a second connecting member, the first connecting member being connected to the bracket via a first damping shaft, and the second connecting member being connected to the second connecting arm via a second damping shaft.

[0006] Preferably, the first connector includes a first connecting portion, a second connecting portion, and a disc-shaped first fixing portion. The first connecting portion and the second connecting portion extend from the upper surface of the first fixing portion in a direction away from the housing assembly. The first connecting portion and the second connecting portion are perpendicular to the first fixing portion. The first connecting portion is provided with a first mounting hole, and the second connecting portion is provided with a second mounting hole. The first damping shaft passes through the first mounting hole and the second mounting hole.

[0007] Preferably, the second connector includes a disc-shaped second fixing part and a strip-shaped third connecting part, wherein the third connecting part is perpendicular to the second fixing part and perpendicular to the first connecting part.

[0008] Preferably, the first connecting portion and the second connecting portion are located on opposite sides of the third connecting portion.

[0009] Preferably, the second connecting arm includes a first connecting plate and a second connecting plate, wherein the first connecting plate is perpendicular to the axial direction of the second damping shaft, and the second connecting plate is parallel to the axial direction of the second damping shaft.

[0010] Preferably, one end of the third connecting arm is connected to the housing assembly on the side of the housing assembly, and the other end is wrapped around the housing assembly to the top of the housing assembly and rotatably connected to the second connecting arm on the top of the housing assembly.

[0011] Preferably, the third connecting arm includes a first connecting plate and a second connecting plate, the first connecting plate being perpendicular to the second connecting plate, one end of the first connecting plate being connected to the second connecting plate, and the other end being connected to the second connecting arm, and the end of the second connecting plate away from the first connecting plate being connected to the base.

[0012] Preferably, the housing assembly includes a housing, a cover plate, and a third connector. A first notch is provided on the side wall of the housing, the cover plate covers the first notch, and the cover plate is provided with a mounting groove. The third connector includes a third connecting plate and a fourth connecting plate that are perpendicular to each other. The third connecting plate is connected to the upper surface of the base, the fourth connecting plate is connected to the third connecting arm, and at least a portion of the fourth connecting plate is embedded in the mounting groove.

[0013] Preferably, the assembly further includes an operating handle, the operating handle assembly being located on the side of the housing assembly opposite to the third connecting arm, the operating handle being parallel to the axial direction of the third damping shaft, the operating handle being provided with operating buttons, and the connection point between the operating handle and the housing being located below the third damping shaft.

[0014] In summary, the beneficial effects of this utility model are as follows: The three-axis rotating damping autofocus microscope provided by this utility model uses a hollow cavity formed by the base and the housing assembly to house and protect the lens assembly, electrical components, and wiring. Part of the lens assembly extends out of the bottom of the base to shorten the working distance, reduce housing obstruction, and facilitate disinfection and cleaning, while the other part is located in the cavity to avoid the influence of the external environment. The three-axis rotating assembly consists of first, second, and third connecting arms and first, second, and third damping axes arranged vertically in sequence. The first and third damping axes are parallel, and the second damping axis is perpendicular to it, forming a convenient position adjustment operation path, expanding the reachable posture range and avoiding mutual interference. Each damping axis provides a certain damping torque, so that the microscope can be smoothly positioned and stably hovered at any angle without additional locking, thereby reducing rebound and shaking, reducing repeated adjustment time, and improving the efficiency of blind-spot-free framing of the upper and lower jaws in scenarios such as narrow oral cavity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the triaxial rotational damping autofocus microscope of this utility model.

[0017] Figure 2 This is a diagram showing the connection between a three-axis rotationally damped autofocus microscope and its support.

[0018] Figure 3 This is a three-dimensional structural diagram of the first connecting arm in this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the second connecting arm in this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the third connecting arm in this utility model.

[0021] Figure 6 This is a structural schematic diagram of the third connecting element in this utility model.

[0022] Figure 7 This is a disassembly diagram of the three-axis rotational damping autofocus microscope of this utility model.

[0023] The components and their numbers shown in the picture: Base 10, housing assembly 20, outer shell 21, cover plate 22, third connector 23, first notch 24, mounting groove 25, third connecting plate 26, fourth connecting plate 27, lens assembly 30, three-axis rotation assembly 40, first connecting arm 41, first connector 411, first fixing part 412, first connecting part 413, second connecting part 414, first mounting hole 415, second mounting hole 416, second connector 417, second fixing part 418, third connecting part 419, second connecting arm 42, first connecting plate 421 Second connecting plate 422, third connecting arm 43, first connecting plate 431, second connecting plate 432, third connecting plate 433, first plane 434, second plane 435, first inclined plane 436, third plane 437, second inclined plane 438, fourth plane 439, fifth plane 440, third inclined plane 441, sixth plane 442, first arc surface 443, second arc surface 444, first damping shaft 44, second damping shaft 45, third damping shaft 46, operating handle 60, operating button 61, bracket 70. Detailed Implementation

[0024] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are configured only to explain this utility model and are not configured to limit it. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0026] It should be noted that all actions involving the acquisition of signals, information, or data in this utility model are carried out in compliance with the relevant data protection laws and regulations of the locality and with authorization from the owner of the corresponding device.

[0027] Example 1 like Figure 1 As shown, this embodiment provides a three-axis rotational damping autofocus microscope, which includes a base 10, a housing assembly 20, a lens assembly 30, and a three-axis rotation assembly 40.

[0028] The housing assembly 20 is mounted above the base 10, and the housing assembly 20 and the base 10 form a hollow chamber; A lens assembly 30 is mounted on a base 10, with a portion of the lens assembly 30 located in the cavity and a portion extending from the bottom of the base 10. In this embodiment, the three-axis rotationally damped autofocus microscope uses a base 10 as a support platform. The housing assembly 20 is mounted above the base 10. The housing and the base 10 together form a hollow cavity to house internal components such as the lens drive, electrical control, and wiring, and also provide protection and sealing. The lens assembly 30 is mounted on the base 10, with one part located inside the cavity for connection to the motor and transmission mechanism, and the other part extending from the bottom of the base 10 to form a working end for focusing on the patient's target area.

[0029] The three-axis rotating assembly 40 is connected at one end to the housing assembly 20 and at the other end to the bracket 70. The three-axis rotating assembly 40 includes a first connecting arm 41, a second connecting arm 42, and a third connecting arm 43. The first connecting arm 41 is rotatably connected to the bracket 70 via a first damping shaft 44. The first connecting arm 41 and the second connecting arm 42 are connected via a second damping shaft 45. The second connecting arm 42 and the third connecting arm 43 are connected. The third connecting arm 43 is rotatably connected to the base 10 via a third damping shaft 46. The first damping shaft 44 is located above the second damping shaft 45, and the second damping shaft 45 is located above the third damping shaft 46. The axial direction of the first damping shaft 44 is parallel to the rotation axis direction of the third damping shaft 46, and the axial direction of the second damping shaft 45 is perpendicular to the axial direction of the first damping shaft 44.

[0030] like Figure 2As shown, in this embodiment, the three-axis rotating assembly 40 for positioning is connected at one end to the housing assembly 20 and at the other end to an external support 70 (e.g., a hoisting or ground support). This rotating assembly consists of three sequentially connected connecting arms 43, which rotate relative to each other via three damping axes positioned at different locations: the first connecting arm 41 is rotatably connected to the support 70 via the first damping axis 44; the first connecting arm 41 is rotatably connected to the second connecting arm 42 via the second damping axis 45; and the third connecting arm 43 is rotatably connected to the base 10 via the third damping axis 46. The three damping axes are arranged spatially from top to bottom, with the first damping axis 44 above the second damping axis 45, and the second damping axis 45 above the third damping axis 46. This spatially offset arrangement of the three rotating joints allows the user to easily adjust the position and orientation of the microscope. The three connecting arms cooperate to achieve three-dimensional adjustable positioning of the microscope's visual axis. Each connection point is a damping shaft to provide damping torque during rotation, thereby achieving a smooth feel and suppressing rebound or drift. By setting the damping torque of the components to be greater than the torque generated by gravity, stable hovering can be achieved at any angle.

[0031] like Figure 3 As shown, in this embodiment, the first connecting arm 41 includes a first connecting member 411 and a second connecting member 417 that are detachably connected. The first connecting member 411 is connected to the bracket 70 through a first damping shaft 44, and the second connecting member 417 is connected to the second connecting arm 42 through a second damping shaft 45.

[0032] The first connecting arm 41 consists of a detachable first connecting member 411 and a second connecting member 417. The first connecting member 411 is rotatably connected to the external bracket 70 via a first damping shaft 44, thus providing a damped rotational degree of freedom. The second connecting member 417 is rotatably connected to the second connecting arm 42 via a second damping shaft 45, providing another damped rotational degree of freedom. The use of detachable two-section connecting members can physically separate the rotating joint on the bracket 70 side from the rotating joint on the connecting rod side, facilitating independent assembly, maintenance, or replacement. The first connecting arm 41 can be adapted to different brackets 70 or different second connecting arms 42 by replacing connecting members of different specifications or shapes, improving versatility and maintenance convenience.

[0033] In this embodiment, the first connector 411 includes a first connecting portion 413, a second connecting portion 414, and a disc-shaped first fixing portion 412. The first connecting portion 413 and the second connecting portion 414 extend from the upper surface of the first fixing portion 412 in a direction away from the housing assembly 20. The first connecting portion 413 and the second connecting portion 414 are perpendicular to the first fixing portion 412. The first connecting portion 413 is provided with a first mounting hole 415, and the second connecting portion 414 is provided with a second mounting hole 416. The first damping shaft 44 passes through the first mounting hole 415 and the second mounting hole 416.

[0034] The first connecting part 413 and the second connecting part 414 are respectively provided with a first mounting hole 415 and a second mounting hole 416. The first damping shaft 44 passes through these two coaxial holes in sequence, thereby forming a rotating shaft with damping torque between the first connecting part 413 and the second connecting part 414.

[0035] During assembly, the first fixing part 412 can serve as a contact and positioning base surface with the bracket 70 or adjacent parts, the vertical first connecting part 413 and the second connecting part 414 provide bearing seat functions, and the first damping shaft 44 passes through the double holes to form a rotating pair.

[0036] The first connecting part 413 and the second connecting part 414 are respectively provided with the first mounting hole 415 and the second mounting hole 416, which together with the first damping shaft 44 form a double shear force. The bearing spacing provides good coaxiality and resistance to lateral bending moment, making rotation more stable and positioning smoother. The disc-shaped fixing part provides a large contact area and centering reference, which facilitates quick assembly and even force distribution. The damping function is concentrated on the first damping shaft 44, which decouples the rotational degree of freedom on the bracket 70 side from the degree of freedom on the subsequent connecting rod side, which is conducive to achieving easy split-axis positioning and stable suspension at any angle.

[0037] like Figure 2 As shown, in this embodiment, the second connector 417 includes a disc-shaped second fixing part 418 and a strip-shaped third connecting part 419. The third connecting part 419 is perpendicular to the second fixing part 418 and perpendicular to the first connecting part 413.

[0038] The second connector 417 forms a transition interface orthogonal to the first connector 411 within the first connecting assembly. The third connecting portion 419 rises vertically from the plane of the second fixing portion 418. The disc-shaped second fixing portion 418 provides a large-area contact surface with the disc of the first connector 411, while the strip-shaped third connecting portion 419 serves as a bearing seat or hole carrier for arranging the second damping shaft 45. The third connecting portion 419 is perpendicular to the second fixing portion 418 and to the first connecting portion 413, ensuring the orthogonality and coaxiality of the two shafts and improving stress and bending stiffness.

[0039] In this embodiment, the first connecting portion 413 and the second connecting portion 414 are located on opposite sides of the third connecting portion 419.

[0040] Since the first connecting part 413 and the second connecting part 414 are respectively located on the left and right opposite sides of the third connecting part 419, a clamping arrangement of the third connecting part 419 can be formed. Therefore, the second damping shaft 45 can be sequentially inserted through the first mounting hole 415 of the first connecting part 413, the shaft hole of the third connecting part 419, and then the second mounting hole 416 of the second connecting part 414, forming a rotating connection with support on both sides and axial insertion. This helps ensure the coaxiality and stress stability of the axis, improves bending stiffness and rotational smoothness, and facilitates axial insertion and removal assembly and maintenance.

[0041] like Figure 4 As shown, in this embodiment, the second connecting arm 42 includes a first connecting plate 421 and a second connecting plate 422. The first connecting plate 421 is perpendicular to the axial direction of the second damping shaft 45, and the second connecting plate 422 is parallel to the axial direction of the second damping shaft 45.

[0042] In this embodiment, the second connecting arm 42 is composed of a first connecting plate 431 and a second connecting plate 432 that are perpendicular to each other. The first connecting plate 431 is arranged perpendicularly to the axis of the second damping shaft 45, and the second connecting plate 432 is arranged parallel to the axis of the second damping shaft 45. The aforementioned structure provides a clear shaft system reference and assembly positioning surface for the second damping shaft 45, facilitating the formation of a stable rotating pair between the first connecting arm 41 and the second connecting arm 42 with the second damping shaft 45 as the rotation center, reducing axis misalignment and assembly errors. In addition, a rigid frame is established by the two perpendicular connecting plates, which respectively bear the axial and radial loads and constraints, improving bending and torsional resistance and overall stability.

[0043] like Figure 5As shown, in this embodiment, one end of the third connecting arm 43 is connected to the housing assembly 20 on the side of the housing assembly 20, and the other end is wrapped around the housing assembly 20 to the top of the housing assembly 20, and is rotatably connected to the second connecting arm 42 on the top of the housing assembly 20.

[0044] In this embodiment, the third connecting arm 43 is wrapped around the side of the housing assembly 20 to the top of the housing and rotatably connected to the second connecting arm 42 above, so that a through working envelope area is formed below the lens assembly 30. This avoids the connecting rod occupying the space in front of or below the patient's mouth, and reduces spatial conflicts and accidental collisions with the housing body, the support 70, the surgeon's hand, and the instruments. At the same time, it does not block the light output and illumination path of the lens, reduces shadow and reflection interference, shortens the working distance between the lens and the target, and expands the reachable angle, thereby improving the consistency and efficiency of blind spot framing and autofocus response.

[0045] In this embodiment, the third connecting arm 43 includes a first connecting plate 431 and a second connecting plate 432. The first connecting plate 431 is perpendicular to the second connecting plate 432. One end of the first connecting plate 431 is connected to the second connecting plate 432, and the other end is connected to the second connecting arm 42. The end of the second connecting plate 432 away from the first connecting plate 431 is connected to the base.

[0046] One end of the first connecting plate 431 is connected to the second connecting plate 432, and the other end is connected to the second connecting arm 42, for reliably connecting the transition position located above the housing to the second connecting arm 42. The second connecting plate 432 mainly bears the bending moment and axial load transmitted from the base side, while the first connecting plate 431 bears the lateral and torsional loads at the transition point with the second connecting arm 42. Through the sharing and constraint of the mutually perpendicular plates, the overall bending and torsional stiffness is improved, and the housing assembly 20 can rotate freely in the semi-enclosed space of the third connecting arm 43. The L-shaped third connecting arm 43 formed by the two connecting plates arranges the rotating joint above the housing, keeping the working space below the lens unobstructed and reducing interference with the housing body, bracket 70, and operator's equipment. At the same time, because the third damping shaft 46 is close to the center of gravity of the whole machine and the cantilever length is reduced, it is beneficial to obtain better structural stability and imaging stability during positioning and hovering.

[0047] like Figure 6As shown, the third connecting arm 43 further includes a third connecting plate 433. The third connecting plate 433 includes a first plane 434 and a second plane 435 that are perpendicular to each other. The first plane 434 is in contact with the surface of the first connecting plate 431, and the second plane 435 is in contact with the surface of the second connecting plate 432. A first inclined surface 436 is also provided between the first plane 434 and the second plane 435. The angle between the first inclined surface 436 and the first plane 434 is an acute angle, and the angle between the first inclined surface 436 and the second plane 435 is an acute angle. In this embodiment, the first plane 434 and the second plane 435, which are perpendicular to each other on the third connecting plate 433, are respectively bonded to the surfaces of the first connecting plate 431 and the second connecting plate 432 over a large area. Then, a first inclined plane 436, which forms an acute angle with both planes, is set between the two to form a composite structure of L-shaped corner and triangular support. The two orthogonal bonding surfaces provide a two-way in-plane constraint and shear force transmission structure, which significantly increases the equivalent cross section and polar moment of inertia of the corner, improves the bending and torsional stiffness, and suppresses the opening deformation of the corner of the third connecting arm 43. The first inclined plane 436 located at the corner plays a role in strengthening the support, so that the force transmission direction changes from a right angle to an oblique transition, reduces the stress concentration and peeling tendency at the sharp corner, and shares the bending moment and torsional load from each damping shaft and arm, enhances the overall stability during rotation and the anti-drift ability during hovering, and is also conducive to the long-term fatigue life and the maintenance of perpendicularity and coaxiality after assembly.

[0048] In this embodiment, a third plane 437, a second inclined plane 438, and a fourth plane 439 are also connected in sequence between the first inclined plane 436 and the first plane 434. The third plane 437 and the fourth plane 439 are perpendicular to each other, the third plane 437 is perpendicular to the first plane 434, and the angle between the second inclined plane 438 and the first plane 434 is greater than the angle between the first inclined plane 436 and the first plane 434.

[0049] This embodiment uses a combination of multiple inclined planes and planes to form a corner composite reinforcement structure with graded inclined transitions: the orthogonal arrangement of the third and fourth planes 439 can expand the local cross section and polar moment of inertia, significantly improving the load-bearing stiffness against bending and torsion; the larger included angle of the second inclined plane 438 provides a longer force flow transition path, and together with the first inclined plane 436, it disperses the concentrated stress at the sharp corner to a wider area, reducing the tendency of peeling and opening deformation; the stepped transition of multiple planes and inclined planes can form a stable shear force transmission channel under rotational loads, improving the vibration resistance and form and position retention of the third connecting arm 43 and the connected plates during the placement or suspension process.

[0050] Similarly, in this embodiment, a fifth plane 440, a third inclined plane 441, and a sixth plane 442 are sequentially connected between the first inclined plane 436 and the second plane 435. The fifth plane 440 and the sixth plane 442 are perpendicular to each other, and the fifth plane 440 is perpendicular to the second plane 435. The angle between the third inclined plane 441 and the second plane 435 is greater than the angle between the first inclined plane 436 and the second plane 435. This structure allows for a stepped transition between the plane and the inclined plane, thereby dispersing stress over a wider area.

[0051] A first arc surface 443 is provided between the first inclined surface 436 and the fourth plane 439, and a second arc surface 444 is provided between the first inclined surface 436 and the sixth plane 442. The use of arc transition between the inclined surface and the plane can significantly reduce stress concentration and tangential peeling tendency at the intersection of the inclined surface and the adjacent plane, so that the bending moment and torsional load from each damping shaft and connecting arm are distributed to a wider area along a smooth path, forming a more uniform stress field and a more stable shear force transmission channel; at the same time, the bidirectional arc corresponds to two sets of orthogonal force directions, and the diagonal bending and torsional resistance play a synergistic stiffening role, reducing micro-vibration and rebound during the swing and suspension process, and improving the form and position retention of the connection area; since the second arc surface 444 is located below the arc surface, it is on the side of the compound tensile and shear principal stress. In this embodiment, the radius of the second arc surface 444 is larger than the radius of the first arc surface 443, thereby increasing the equivalent cross section and polar moment of inertia of the composite tension-shear principal stress side structure and reducing deflection and micro-vibration. This allows for the consideration of the bending and torsional stiffness of the corners without sacrificing the compactness of the shape.

[0052] like Figure 7 As shown, the housing assembly 20 includes a housing 21, a cover plate 22, and a third connector 23. A first notch 24 is provided on the side wall of the housing 21, and the cover plate 22 covers the first notch 24. The cover plate 22 is provided with a mounting groove 25. The third connector 23 includes a third connecting plate 26 and a fourth connecting plate 27 that are perpendicular to each other. The third connecting plate 26 is connected to the upper surface of the base 10, and the fourth connecting plate 27 is connected to the third connecting arm 43.

[0053] In this embodiment, the first notch 24 on the side wall of the housing serves as an assembly window. The cover plate 22 covers the notch and forms an mounting groove 25 thereon, which provides a positioning and limiting interface for the third connector 23. The third connector 23 has a right-angle structure: the third connecting plate 26 is connected to the upper surface of the base 10, establishing a bearing reference plane coplanar with the base 10; the fourth connecting plate 27 is connected to the third connecting arm 43, and at least a portion of it is embedded in the mounting groove 25. The cooperation between the groove sidewall and bottom surface and the fourth connecting plate restricts its translation and rotation in the groove opening, naturally ensuring the orthogonality with the surface of the base 10; the embedding of the fourth connecting plate gradually transitions the force distribution from surface contact to a composite force distribution between the surface and the sidewall, shortening the lever arm, improving bending and torsional stiffness, and reducing the shear load on the connecting bolts; the cover plate 22 closes the notch and allows access within the groove, reducing exposed parts and dust accumulation points, facilitating cleaning.

[0054] like Figure 1 As shown, the surgical microscope in this embodiment also includes an operating handle 60. The operating handle 60 is located on the side of the housing assembly 20 opposite to the third connecting arm 43. The operating handle 60 is parallel to the axial direction of the third damping shaft 46. An operating button 61 is provided on the operating handle 60.

[0055] The operating handle 60 is mounted on the housing assembly 20 and located on the side opposite to the third connecting arm 43, keeping the handheld area away from the linkage motion envelope and reducing interference with the mechanism, the surgeon's hand, or surgical instruments. The longitudinal direction of the operating handle 60 is parallel to the axis of the third damping axis 46. When the surgeon applies force along the handle, a torque about the third axis is mainly generated, reducing off-axis lateral loads and posture coupling, thereby achieving smoother fine-tuning and stable hovering. The handle is equipped with operating buttons 61, which facilitate direct triggering of electronic control functions such as zoom, focus, and illumination under the same grip posture, reducing grip changes and visual axis shift, and improving intraoperative operation efficiency and imaging consistency. Users can adjust the microscope's position and posture by applying force to the operating handle 60, which is highly convenient.

[0056] The above description is merely a specific embodiment of this utility model. Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A three-axis rotationally damped autofocus microscope, characterized in that, include: Base; A housing assembly is mounted above a base, and the housing assembly and the base form a hollow chamber; A lens assembly is mounted on a base, with a portion of the lens assembly located in the chamber and a portion extending from the bottom of the base; The three-axis rotating assembly is connected to the housing assembly at one end and to the bracket at the other end. The three-axis rotating assembly includes a first connecting arm, a second connecting arm, and a third connecting arm. The first connecting arm and the bracket are rotatably connected via a first damping shaft. The first connecting arm and the second connecting arm are connected via a second damping shaft. The second connecting arm and the third connecting arm are connected. The third connecting arm and the base are rotatably connected via a third damping shaft. The first damping shaft is located above the second damping shaft, and the second damping shaft is located above the third damping shaft. The axial direction of the first damping shaft is parallel to the rotation axis direction of the third damping shaft, and the axial direction of the second damping shaft is perpendicular to the axial direction of the first damping shaft.

2. The triaxial rotationally damped autofocus microscope according to claim 1, characterized in that, The first connecting arm includes a detachably connected first connecting member and a second connecting member. The first connecting member is connected to the bracket via a first damping shaft, and the second connecting member is connected to the second connecting arm via a second damping shaft.

3. The triaxial rotationally damped autofocus microscope according to claim 2, characterized in that, The first connector includes a first connecting portion, a second connecting portion, and a disc-shaped first fixing portion. The first connecting portion and the second connecting portion extend from the upper surface of the first fixing portion in a direction away from the housing assembly. The first connecting portion and the second connecting portion are perpendicular to the first fixing portion. The first connecting portion is provided with a first mounting hole, and the second connecting portion is provided with a second mounting hole. The first damping shaft passes through the first mounting hole and the second mounting hole.

4. The triaxial rotationally damped autofocus microscope according to claim 3, characterized in that, The second connector includes a disc-shaped second fixing part and a strip-shaped third connecting part, wherein the third connecting part is perpendicular to the second fixing part and perpendicular to the first connecting part.

5. The triaxial rotationally damped autofocus microscope according to claim 3, characterized in that, The first connecting portion and the second connecting portion are located on opposite sides of the third connecting portion.

6. The triaxial rotationally damped autofocus microscope according to claim 1, characterized in that, The second connecting arm includes a first connecting plate and a second connecting plate, wherein the first connecting plate is perpendicular to the axial direction of the second damping shaft, and the second connecting plate is parallel to the axial direction of the second damping shaft.

7. The triaxial rotationally damped autofocus microscope according to claim 5, characterized in that, One end of the third connecting arm is connected to the housing assembly on the side of the housing assembly, and the other end is wrapped around the housing assembly to the top of the housing assembly and rotatably connected to the second connecting arm on the top of the housing assembly.

8. The triaxial rotationally damped autofocus microscope according to claim 7, characterized in that, The third connecting arm includes a first connecting plate and a second connecting plate. The first connecting plate is perpendicular to the second connecting plate. One end of the first connecting plate is connected to the second connecting plate, and the other end is connected to the second connecting arm. The end of the second connecting plate away from the first connecting plate is connected to the base.

9. The triaxial rotationally damped autofocus microscope according to any one of claims 1 to 8, characterized in that, The housing assembly includes an outer shell, a cover plate, and a third connector. The outer shell has a first notch on its side wall, and the cover plate covers the first notch. The cover plate has a mounting groove. The third connector includes a third connecting plate and a fourth connecting plate that are perpendicular to each other. The third connecting plate is connected to the upper surface of the base, and the fourth connecting plate is connected to the third connecting arm. At least a portion of the fourth connecting plate is embedded in the mounting groove.

10. The triaxial rotationally damped autofocus microscope according to claim 9, characterized in that, It also includes an operating handle, the operating handle assembly being located on the side of the housing assembly opposite to the third connecting arm, the operating handle being parallel to the axial direction of the third damping shaft, the operating handle being provided with operating buttons, and the connection point between the operating handle and the housing being located below the third damping shaft.

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