CN217714279U

CN217714279U - Ophthalmic microscope support

Info

Publication number: CN217714279U
Application number: CN202221392059.6U
Authority: CN
Inventors: 吴永锋; 程栋; 邓杨涛
Original assignee: Suzhou Ruishi Medical Technology Co ltd
Current assignee: Suzhou Ruishi Medical Technology Co ltd
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-01
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses an ophthalmology microscope support uses in microscope installing support field, and its technical scheme main points are: an ophthalmic microscope stand comprising an ophthalmic microscope for examining an eye of an ophthalmic patient and a support frame for supporting the ophthalmic microscope; the support frame comprises a base and a plurality of adjusting mechanisms arranged on the base and used for adjusting the position of the ophthalmic microscope, and each adjusting mechanism comprises a height adjusting component which is fixedly connected to the base and used for adjusting the height of the ophthalmic microscope in the vertical direction, and a plurality of angle adjusting components which are connected to one end, far away from the ground, of the height adjusting component and used for adjusting the angle of the ophthalmic microscope relative to the ground; has the technical effects that: the adjustment is convenient.

Description

Ophthalmic microscope support

Technical Field

The utility model relates to a microscope installing support field, in particular to ophthalmology microscope support.

Background

The microscope is an optical instrument formed by one lens or a combination of several lenses, is mainly used for magnifying the micro object which can be seen by naked eyes of people, and the ophthalmic operation microscope is a compound microscopic magnifying device formed from light source condenser, ocular lens and objective lens, and is mainly used for researching the precision detection device which is used for detecting various ophthalmic diseases of visual system, including ophthalmology and related tissue related diseases of eyeball, general research vitreous body of ophthalmology, retina disease, visual optics, glaucoma, optic neuropathy and cataract, etc.

At present, an ophthalmologist needs to adjust the position of an ophthalmology microscope relative to a patient to obtain the best observation effect when dealing with different patients, the existing ophthalmologist has certain defects in use, the ophthalmologist cannot conveniently adjust a support supporting the ophthalmology microscope or cannot accurately adjust the support to achieve the best observation effect, and therefore the support which can be convenient for the ophthalmologist to adjust the ophthalmology microscope to obtain the best observation effect is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ophthalmology microscope stand, its advantage is adjusted conveniently.

The above technical object of the present invention can be achieved by the following technical solutions: an ophthalmic microscope stand comprising an ophthalmic microscope for examining an eye of an ophthalmic patient and a support frame for supporting the ophthalmic microscope, the ophthalmic microscope comprising an objective lens proximate the eye of the patient, an eyepiece for viewing by an ophthalmologist and a light source condenser for enabling real-time illumination of the patient's eye; the support frame include the base and set up in the base is used for adjusting a plurality of adjustment mechanism of ophthalmology microscope position, adjustment mechanism include fixed connection in be used for adjusting on the base high adjustment subassembly of ophthalmology microscope height in along the vertical direction and connect in the one end on ground is kept away from to high adjustment subassembly is used for adjusting a plurality of angle adjustment subassemblies of ophthalmology microscope for the ground angle.

Through above-mentioned technical scheme, the base is used for realizing that the support frame can be stable subaerial, guarantees the stability of ophthalmologist when detecting patient's eyes, and the altitude mixture control subassembly that sets up on the base is used for realizing making things convenient for the regulation of ophthalmic microscope height in the vertical direction, connects and realizes the position of being convenient for adjust ophthalmic microscope at a plurality of angle adjusting part that altitude mixture control subassembly kept away from ground one end can different patient's position to obtain better adjustment effect, adjust the facility.

The utility model discloses further set up to: the height adjusting assembly comprises a hollow sleeve fixedly connected to the base and a jacking hydraulic cylinder fixedly connected to the base, the hollow sleeve and the hollow sleeve are coaxially arranged, the jacking hydraulic cylinder is connected to the base, a pedal used for controlling the jacking hydraulic cylinder to lift is arranged on the outer side of the hollow sleeve, a jacking connecting rod is fixedly connected to the top end of the jacking hydraulic cylinder, and a first damping ferrule attached to the inner wall of the hollow sleeve is arranged at one end, close to the jacking hydraulic cylinder, of the jacking connecting rod.

Through the technical scheme, at the hollow sleeve of base fixed connection and set up the jacking pneumatic cylinder with the axle center in the hollow sleeve, top fixed connection jacking connecting rod at the jacking pneumatic cylinder, and set up the running-board that is connected to the jacking pneumatic cylinder outside the hollow sleeve, thereby when ophthalmologist need adjust the height of jacking connecting rod when realizing adjusting the height of ophthalmologist, only need trample the running-board that sets up in the hollow sleeve outside and can realize adjusting the position of ophthalmologist easily, moreover, the steam generator is simple in structure, and the operation is convenient, the one end that is close to the jacking pneumatic cylinder at the jacking connecting rod sets up the first damping lasso of laminating hollow sleeve inner wall, on the one hand, can make the removal process of jacking connecting rod in the hollow sleeve more stable, stability when guaranteeing to adjust the ophthalmologist, on the other hand, at the in-process of jacking connecting rod jacking, first damping lasso produces damping power with hollow sleeve inner wall friction, make ophthalmologist's adjustment feel better, be favorable to ophthalmologist's operation.

The utility model discloses further set up to: the first damping ferrule is a rubber ring, a connecting rod hole matched with the jacking connecting rod is formed in one end, far away from the base, of the hollow sleeve, and a second damping ferrule attached to the surface of the jacking connecting rod is arranged on the wall of the connecting rod hole.

Through the technical scheme, first damping lasso uses the rubber circle, on the one hand, the damping force that rubber circle and hollow sleeve inner wall friction produced is too big also not too little, be favorable to ophthalmologist's regulation, on the other hand, the rubber circle is comparatively wear-resisting and the price is lower, be favorable to reducing use cost, keep away from the base at hollow sleeve one point set up with ejector pin complex connecting rod hole and set up the second damping lasso with jacking connecting rod surface laminating at the pore wall in connecting rod hole, thereby make the jacking process of jacking connecting rod more stable.

The utility model discloses further set up to: the angle adjustment subassembly includes along jacking connecting rod axial lead realizes the first angle adjustment subassembly of 0-360 within range internal rotation and is in based on the setting the axis of rotation of first angle adjustment subassembly one end rotate connect in second angle adjustment subassembly on the first angle adjustment subassembly, the one end rotation that the axis of rotation was kept away from to the second angle adjustment subassembly is connected with and is used for realizing driving ophthalmic microscope realizes for the third angle adjustment subassembly of second angle adjustment subassembly at 0-6 within range regulation, ophthalmic microscope carry connect in third angle adjustment subassembly is kept away from second angle adjustment subassembly one end.

Through the technical scheme, first angle adjusting part realizes that ophthalmology microscope can realize the rotation of 0-360 within ranges along jacking connecting rod axial lead, thereby realize omnidirectional adjustment, second angle adjusting part rotates to connect on first angle adjusting part based on the axis of rotation that sets up in first angle adjusting part one end, thereby realize driving the accurate adjustment of ophthalmology microscope in liftoff different height departments, third angle adjusting part rotates to connect and realizes the adjustment in 0-6 within ranges on second angle adjusting part, because ophthalmology microscope sets up to two light sources usually, can't continue to inspect under the condition of avoiding the light source inefficacy, first light source is the primary light source, set up on ophthalmology microscope, another light source is angle adjustable light source usually, avoid when doing the operation, because the unable eyeball inner structure of seeing clearly such as bloodstain, thereby realize can seeing the structure of eyeball inside clearly through adjusting the second light source.

The utility model discloses further set up to: the top end, far away from the base, of the jacking connecting rod is provided with a first adjusting disc, the first angle adjusting assembly comprises a first supporting rod which is inserted and connected to the top end of the jacking connecting rod, the first supporting rod is provided with a second adjusting disc which is coaxially arranged and sleeved on the first adjusting disc, one end, far away from the base, of the first adjusting disc is provided with a plurality of elastic clamping pieces at even intervals along the circumferential direction, the second adjusting disc is provided with a plurality of clamping holes corresponding to the elastic clamping pieces along the circumferential direction, and the second adjusting disc is fixedly connected with a plurality of quick clamping assemblies which enable the first adjusting disc and the second adjusting disc to be tightly attached to each other.

Through the technical scheme, the top of keeping away from the base at the jacking connecting rod sets up first adjustment disc, first angle adjusting part's first bracing piece is inserted and is established in the jacking connecting rod and set up on first bracing piece and set up with the axle center setting and the cover is established on first adjustment disc in first adjustment disc, set up a plurality of elastic joint spare along the even interval of circumferencial direction on first adjustment disc and set up in elastic joint spare complex joint hole on the second adjustment disc, when the position of first angle adjusting part is adjusted to needs, only need rotate certain angle, elastic joint spare can be automatic to cooperate with joint hole, thereby realize the required angle of adjustment, the adjustment precision is high, set up fast clamp assembly on the second adjustment disc, only need use fast clamp assembly to make first adjustment disc can press close to on the second adjustment disc after the adjustment, thereby make ophthalmic microscope can stabilize, avoid dropping.

The utility model discloses further set up to: the second angle adjusting assembly comprises a second supporting rod which is rotatably connected with the first supporting rod to be far away from one end of the jacking connecting rod based on a rotating shaft, the first supporting rod is close to the position fixed connection of the second adjusting disc and is used for supporting the first damping pneumatic supporting rod of the second supporting rod.

Through the technical scheme, the second supporting rod is connected to one end, far away from the jacking connecting rod, of the first supporting rod on the basis of rotation of the rotating shaft, the second angle adjusting assembly can be driven to rotate when the first supporting rod rotates, the first damping pneumatic supporting rod, close to the second adjusting disc, is fixedly connected to the position of the first supporting rod and used for supporting the second supporting rod to rotate, the first damping pneumatic supporting rod can be driven to rotate when the first supporting rod rotates, damage is avoided, the damping pneumatic supporting rod can be used for guaranteeing enough supporting force while achieving adjustment at any time, and the ophthalmic microscope is prevented from falling down.

The utility model discloses further set up to: the third angle adjusting assembly comprises a third supporting rod which is rotatably connected with the second supporting rod and is far away from one end of the first supporting rod, the position of the second supporting rod, which is close to the third supporting rod, is fixedly connected with a second damping pneumatic supporting rod which is used for driving the third supporting rod to rotate in a range of 0-6 degrees relative to the second supporting rod.

Through the technical scheme, the third angle adjusting assembly is rotatably connected to the first supporting rod, and the second supporting rod is fixedly connected to the position, close to the third supporting rod, of the second supporting rod and is used for driving the third supporting rod to rotate in the range of 0-6 degrees relative to the second supporting rod, so that the light source with the adjustable angle can be stably and quickly adjusted.

The utility model discloses further set up to: a plurality of moving grooves are uniformly formed in the base, and foldable pulley assemblies used for driving the supporting frame and the ophthalmic microscope to stably move are rotationally connected in the moving grooves.

Through above-mentioned technical scheme, evenly set up a plurality of shifting chutes on the base and be used for driving the collapsible loose pulley assembly of support frame and the stable removal of ophthalmology fibrescope at the shifting chute internal rotation connection, can guarantee to receive collapsible loose pulley assembly when using in guaranteeing to remove convenient for the great base direct contact ground of weight, thereby promote the stability when support frame and ophthalmology microscope use.

To sum up, the utility model discloses following beneficial effect has:

1. the height adjusting component arranged on the base is used for achieving height adjustment of the ophthalmic microscope in the vertical direction conveniently, and the angle adjusting components connected to the ends, far away from the ground, of the height adjusting component can achieve the position adjustment of the ophthalmic microscope conveniently according to the positions of different patients, so that a better adjusting effect is achieved, and the adjustment is convenient;

2. set up the shifting chute on the base and set up collapsible loose pulley assembly in the shifting chute, can guarantee when guaranteeing to remove convenient can receive collapsible loose pulley assembly when using in the shifting chute for the great base direct contact ground of weight, thereby promote the stability when support frame and ophthalmology microscope use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a half sectional view showing the entire structure of the present embodiment;

FIG. 3 is a schematic structural view of the height adjustment assembly of the present embodiment;

FIG. 4 is a schematic half sectional view of the elastic clip of the present embodiment;

fig. 5 is a schematic structural view of the angle adjustment assembly of the present embodiment.

Reference numerals are as follows: 1. an ophthalmic microscope; 2. a support frame; 3. a base; 31. a moving groove; 4. an adjustment mechanism; 5. a height adjustment assembly; 51. a hollow sleeve; 52. a jacking hydraulic cylinder; 53. a foot pedal; 54. jacking connecting rods; 55. a connecting rod hole; 56. a first damping ferrule; 57. a second damping ferrule; 58. a first adjusting disk; 59. an elastic clamping piece; 6. an angle adjustment assembly; 61. a first angle adjustment assembly; 611. a first support bar; 612. a second adjusting disk; 613. a clamping hole; 614. a quick clamping assembly; 615. a first damped pneumatic strut; 62. a second angle adjustment assembly; 621. a second support bar; 622. a second damped pneumatic strut; 63. a third angle adjustment assembly; 631. a third support bar; 7. a collapsible sheave assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, an ophthalmic microscope stand includes an ophthalmic microscope 1 for examining an eye of an ophthalmic patient and a support frame 2 for supporting the ophthalmic microscope 1, the ophthalmic microscope 1 including an objective lens proximate to the eye of the patient, an eyepiece for observation by an ophthalmic surgeon and a light source condenser for enabling real-time illumination at the patient's eye;

referring to fig. 1, support frame 2 includes base 3 and sets up in base 3, a plurality of adjustment mechanism 4 for adjusting ophthalmic microscope 1 position, adjustment mechanism 4 includes that fixed connection is used for adjusting the altitude mixture control subassembly 5 of ophthalmic microscope 1 along the vertical direction on base 3 and connects in the one end that the altitude mixture control subassembly 5 kept away from ground, a plurality of angle adjustment subassembly 6 for adjusting ophthalmic microscope 1 for ground angle, base 3 uses solid cast iron material to make, base 3 sets up with the one end of ground contact and levels the processing, use the abrasive paper of low mesh to polish, also can guarantee when guaranteeing to place subaerial stability that base 3 can not slide on ground, guarantee base 3's stability.

Specifically, a plurality of shifting chutes 31 have been seted up at even interval on base 3, be connected with the collapsible loose pulley assembly 7 that is used for driving support frame 2 and the stable removal of ophthalmology microscope 1 in shifting chute 31 internal rotation, when needs are with support frame 2 and the 1 shift position of the ophthalmology microscope of connection on support frame 2, only need be with the 3 bottom surfaces of the folding base of collapsible loose pulley assembly 7, when needs are fixed, can in the shifting chute 31 with collapsible loose pulley assembly 7 folding.

Referring to fig. 2 to 4, specifically, height adjusting assembly 5 includes hollow sleeve 51 fixedly connected to base 3 and is set up with the same axle center with hollow sleeve 51, jacking hydraulic cylinder 52 fixedly connected to base 3, the hollow sleeve 51 outside is equipped with and is connected to jacking hydraulic cylinder 52, a running-board 53 for controlling the lift of jacking hydraulic cylinder 52, the top fixedly connected with jacking connecting rod 54 of jacking hydraulic cylinder 52, the one end that jacking connecting rod 54 is close to jacking hydraulic cylinder 52 is equipped with the first damping lasso 56 of laminating hollow sleeve 51 inner wall, the one end that hollow sleeve 51 keeps away from base 3 is equipped with link hole 55 with jacking connecting rod 54 complex, link hole 55 pore wall is equipped with the second damping lasso 57 of laminating jacking connecting rod 54 surface, jacking connecting rod 54 is equipped with first adjustment disc 58 on the top of keeping away from base 3 simultaneously, the one end of base 3 is kept away from to first adjustment disc 58, a plurality of counter bores have evenly been seted up along the circumferencial direction interval, be equipped with a plurality of elastic clamping joint spare 59 in the counter bore, elastic joint spare 59 includes the clamping axle center is equipped with the clamping axle center and is equipped with the clamping column elastic support piece, the first damping adjustment spare, the first damping adjustment disc is also can use damping rubber material to use the damping lasso to reduce the damping rubber ferrule and use the damping rubber ring to use the damping effect of this embodiment. Simultaneously elasticity joint member 59 is around the even distribution of first adjustment disc 58 circumferencial direction, and elasticity joint member 59 is equipped with 180 in this embodiment, and the interval between every elasticity joint member 59 is 2.

Referring to fig. 5, specifically, the angle adjusting assembly 6 includes a first angle adjusting assembly 61 which rotates within a range of 0 to 360 degrees along the axial line of the jacking link 54 and a second angle adjusting assembly 62 which is rotatably connected to the first angle adjusting assembly 61 based on a rotating shaft arranged at one end of the first angle adjusting assembly 61, one end of the second angle adjusting assembly 62, which is far away from the rotating shaft, is rotatably connected with a third angle adjusting assembly 63 which is used for driving the ophthalmic microscope 1 to adjust within a range of 0 to 6 degrees relative to the second angle adjusting assembly 62, the ophthalmic microscope 1 is mounted and connected to the third angle adjusting assembly 63, which is far away from one end of the second angle adjusting assembly 62, so as to avoid that the inner structure of the eyeball cannot be seen clearly due to bloodstains and the like during surgery, thereby the inner structure of the eyeball can be seen clearly by adjusting the second light source.

Referring to fig. 5, specifically, the first angle adjusting assembly 61 includes a first support rod 611 inserted into a support hole at the top end of the jacking link 54, a handle convenient to rotate is disposed on the first support rod 611, a second adjusting disk 612 is disposed on the first support rod 611 coaxially with the first adjusting disk 58 and sleeved on the first adjusting disk 58, a clamping hole 613 corresponding to the elastic clamping member 59 is disposed on the second adjusting disk 612 along the circumferential direction, a plurality of quick clamping assemblies 614 are fixedly connected to the second adjusting disk 612 to make the first adjusting disk 58 and the second adjusting disk 612 tightly contact each other, a rotating shaft slot for accommodating the rotation of the rotating shaft is disposed at a position of the first support rod 611 far away from the second adjusting disk 612, and a first damping pneumatic support rod 616 is fixedly connected to a position of the first support rod 611 close to the second adjusting disk 612.

Referring to fig. 5, in particular, the second angle adjusting assembly 62 includes a second support rod 621 rotatably connected to a rotation shaft groove provided at one end of the first support rod 611 based on a rotation shaft, the first damping pneumatic support 616 is rotatably connected to an intermediate position of the second support rod 621, the rotation shaft groove is also provided at a position of the second support rod 621 far from the first support rod 611, and a second damping pneumatic support 622 is fixedly connected to a position of the second support rod 621 far from the first support rod 611.

Referring to fig. 5, in particular, the third angle adjusting assembly 63 includes a third support rod 631 rotatably connected to the rotation shaft slot of the second support rod 621, an LED lamp is disposed in the middle of the third support rod 631, and the second damping pneumatic support rod 622 is connected to the middle of the third support rod 631, so as to achieve adjustment of the third support rod 631 within a range of 0 to 6, thereby helping an ophthalmologist to better see the internal structure of the patient's eye clearly.

Brief description of the use process: firstly, an ophthalmologist steps on a pedal 53 arranged on a hollow sleeve 51 to realize the lifting of a jacking hydraulic cylinder 52 so as to adjust the ophthalmic microscope 1 to a proper height, then a handle is grabbed to rotate to adjust a first angle adjusting component 61 to adjust the ophthalmic microscope 1 to the direction of a patient, then a first damping pneumatic support rod 616 is adjusted to realize the adjustment of a second angle adjusting component 62, the ophthalmic microscope 1 is adjusted to a specific position, then a third angle adjusting component 63 is adjusted to realize the accurate adjustment of the ophthalmic microscope 1, and the optimal examination effect is obtained.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. An ophthalmic microscope stand comprising an ophthalmic microscope (1) for examining an eye of an ophthalmic patient and a support frame (2) for supporting the ophthalmic microscope (1), the ophthalmic microscope (1) comprising an objective lens for proximate the eye of the patient, an eyepiece for viewing by an ophthalmologist and a light source condenser for enabling real-time illumination at the patient's eye; its characterized in that, support frame (2) include base (3) and set up in base (3) are used for the adjustment a plurality of adjustment mechanism (4) of ophthalmology microscope (1) position, adjustment mechanism (4) including fixed connection in be used for adjusting on base (3) height adjusting part (5) and connect in the one end that ground was kept away from to height adjusting part (5) are used for adjusting a plurality of angle adjusting part (6) of ophthalmology microscope (1) for the ground angle.

2. The ophthalmic microscope support according to claim 1, wherein the height adjusting assembly (5) comprises a hollow sleeve (51) fixedly connected to the base (3) and a jacking hydraulic cylinder (52) coaxially arranged with the hollow sleeve (51) and fixedly connected to the base (3), a pedal (53) connected to the jacking hydraulic cylinder (52) and used for controlling the jacking hydraulic cylinder (52) to ascend and descend is arranged outside the hollow sleeve (51), a jacking link (54) is fixedly connected to the top end of the jacking hydraulic cylinder (52), and a first damping ferrule (56) attached to the inner wall of the hollow sleeve (51) is arranged at one end, close to the jacking hydraulic cylinder (52), of the jacking link (54).

3. An ophthalmological microscope stand according to claim 2, characterized in that the first damping collar (56) is a rubber ring, the end of the hollow sleeve (51) remote from the base (3) is provided with a connecting rod hole (55) which cooperates with the lifting connecting rod (54), and the wall of the connecting rod hole (55) is provided with a second damping collar (57) which abuts against the surface of the lifting connecting rod (54).

4. The ophthalmic microscope stand according to claim 2, wherein the angle adjusting assembly (6) comprises a first angle adjusting assembly (61) capable of rotating in a range of 0-360 ° along the axial centerline of the jacking link (54), and a second angle adjusting assembly (62) rotatably connected to the first angle adjusting assembly (61) based on a rotating shaft disposed at one end of the first angle adjusting assembly (61), wherein one end of the second angle adjusting assembly (62) away from the rotating shaft is rotatably connected with a third angle adjusting assembly (63) capable of driving the ophthalmic microscope (1) to adjust in a range of 0-6 ° relative to the second angle adjusting assembly (62), and the ophthalmic microscope (1) is suspended and connected to one end of the third angle adjusting assembly (63) away from the second angle adjusting assembly (62).

5. The ophthalmologic microscope stand according to claim 4, wherein a first adjusting disc (58) is disposed on a top end of the jacking connecting rod (54) far away from the base (3), the first angle adjusting assembly (61) includes a first supporting rod (611) inserted and connected to the top end of the jacking connecting rod (54), a second adjusting disc (612) coaxially disposed and sleeved on the first adjusting disc (58) is disposed on the first supporting rod (611), a plurality of elastic clamping members (59) are uniformly arranged on one end of the first adjusting disc (58) far away from the base (3) at intervals along a circumferential direction, a plurality of clamping holes (613) corresponding to the elastic clamping members (59) are disposed on the second adjusting disc (612) along the circumferential direction, and a plurality of quick clamping assemblies (614) are fixedly connected to the second adjusting disc (612) to enable the first adjusting disc (58) and the second adjusting disc (612) to be tightly attached.

6. The ophthalmic microscope stand according to claim 5, wherein the second angle adjustment assembly (62) comprises a second support rod (621) rotatably connected to one end of the first support rod (611) far away from the lifting link (54) based on a rotation shaft, and a first damping pneumatic support rod (616) for supporting the second support rod (621) to rotate is fixedly connected to the first support rod (611) near the second adjustment disc (612).

7. An ophthalmic microscope stand according to claim 6, wherein the third angle adjustment assembly (63) comprises a third support rod (631) rotatably connected to an end of the second support rod (621) remote from the first support rod (611), and a second damping pneumatic support rod (622) is fixedly connected to the second support rod (621) near the third support rod (631) for driving the third support rod (631) to rotate in a range of 0-6 ° relative to the second support rod (621).

8. The ophthalmic microscope stand according to claim 1, wherein the base (3) is uniformly provided with a plurality of moving grooves (31), and the moving grooves (31) are rotatably connected with foldable pulley assemblies (7) for driving the support frame (2) and the ophthalmic microscope (1) to stably move.