CN218824913U - Laser light path adjusting mechanism and photocoagulation instrument - Google Patents
Laser light path adjusting mechanism and photocoagulation instrument Download PDFInfo
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- CN218824913U CN218824913U CN202320015667.3U CN202320015667U CN218824913U CN 218824913 U CN218824913 U CN 218824913U CN 202320015667 U CN202320015667 U CN 202320015667U CN 218824913 U CN218824913 U CN 218824913U
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Abstract
The utility model provides a laser light path adjustment mechanism and contain this adjustment mechanism's light condensation appearance. A laser light path adjusting mechanism comprises a reflector and a rotating frame, wherein the reflector is connected with the rotating frame through rotating shafts 105 and 107 and used for adjusting a laser deflection angle, and the rotating frame is rotary and can drive the reflector to rotate around a laser axis 1; the rotating shaft drives the reflector to turn around the rotating shafts 105 and 107; the rotating shaft is provided with a damping part 106, and the damping part 106 provides resistance for the rotation of the rotating shafts 105 and 107. A photocoagulator comprising the adjusting mechanism comprises a lens set and a frame thereof. Adjustment and accurate location of treatment facula can be realized to adjustment mechanism and photocoagulation appearance, and operating procedure is convenient, angle regulation is accurate and easily control. The photocoagulator also has the advantages described above.
Description
Technical Field
The utility model relates to a laser light path adjustment mechanism specifically is a laser light path adjustment mechanism in photocoagulation appearance.
The utility model discloses still relate to one kind and contain laser light path adjustment mechanism's light congeals appearance.
Background
In the fundus laser system, a slit lamp and a photocoagulation instrument are used in a combined mode, a doctor observes fundus tissues through the slit lamp, and if the fundus tissues are found to be pathological changes, the fundus tissues need to be treated through the photocoagulation instrument. The pathological change tissue is usually less in area, when observing a certain pathological change department, needs the transmission direction of laser among the accurate adjustment photocoagulation appearance, drives the laser mirror rotation, realizes the change of laser transmission angle on level and every single move direction, and then makes the accurate position that falls of facula. In the related technology, the laser light path adjusting mechanism of the photocoagulation instrument is complex in design, complex to operate and incapable of being positioned quickly and accurately.
Patent document CN 207502800U discloses a lens angle adjusting device for performing a minute angle adjustment on a lens. The device comprises a bracket for mounting a coarse adjustment component, a fine adjustment component and a fixed component. The coarse adjusting screw coarsely adjusts the inclination angle of the lens, and the fine adjusting screw, the threaded sleeve and the light path fixing piece form a differential threaded structure, so that fine adjustment of the inclination is realized, but only the pitch angle can be adjusted.
Patent document CN 205698218U discloses a multipoint scanning photocoagulation instrument, which discloses a scheme that a therapeutic light beam or an aiming light beam sequentially passes through a first reflector and a second reflector for reflection; the first motor is in driving connection with the first reflection lens, and the second motor is in driving connection with the second reflection lens, so that the control device can respectively control the rotation angles of the first reflection lens and the second reflection lens. The rotation axis of the first mirror plate is perpendicular to the rotation axis of the second mirror plate. The scheme does not disclose the structure of a specific adjusting mechanism, and two groups of lenses are used, so that the laser reflection efficiency is reduced to a certain degree.
Therefore, a laser light path adjusting mechanism for a photocoagulation instrument, which is simple and rapid to operate, is lacked in the related technology, and the laser light spots for treatment are accurately and rapidly positioned and adjusted.
Disclosure of Invention
The utility model discloses it is with high costs complicated with high costs to solve among the correlation technique laser light path adjustment mechanism for the photocoagulation appearance design, adjusts inconveniently, and the problem of treatment inefficiency to simple structure conveniently realizes the treatment and adjusts with the accurate positioning of laser facula.
To the limitation that exists, the utility model provides a
A laser light path adjusting mechanism comprises a reflector and a rotating frame, wherein the reflector is connected with the rotating frame through rotating shafts 105 and 107 and used for adjusting a laser deflection angle, and the rotating frame is rotary and can drive the reflector to rotate around a laser axis 1; the rotating shaft drives the reflector to turn around the rotating shafts 105 and 107; the rotating shaft is provided with a damping part 106, and the damping part 106 provides resistance for the rotation of the rotating shafts 105 and 107.
Further: the reflector is provided with a mirror bracket 112, one end of the rotating shaft is fixedly connected with the mirror bracket 112, and the other end of the rotating shaft penetrates through a through hole in the rotating frame and can rotate in the through hole; the damping part 106 and the rotating shafts 105 and 107 are of an integrated structure or are independent of each other.
Further: the damping portion 106 is a damping structure disposed on the surface of the rotating shaft 105, 107 and/or inside the through hole, or a damper disposed on the rotating shaft.
Further, the method comprises the following steps: one end of the rotating shaft 105, 107 is fixedly connected to a knob 108, the knob 108 is used for driving the rotating shaft 105, 107 to rotate, and/or one end of the rotating shaft 105, 107 is fixedly connected to a shifting lever 110, and the shifting lever 110 is used for driving the rotating shaft to rotate and the rotating frame to rotate.
Further: a limiting part is arranged around the shifting lever 110 and used for limiting the rotation range and the turning angle of the mirror driven by the shifting lever.
Further: the relationship between the rotation angle of the shift lever 110 and the turning angle of the reflector is 1.
A kind of photocoagulation instrument, including lens battery and its frame, is used for regulating the facula size of the laser, including the above-mentioned regulating mechanism, also include: the adaptor is used for connecting the photocoagulation instrument with the adjusting mechanism; the adapter is respectively connected with the rotating frame and the frame of the lens group, and the rotating frame can rotate relative to the frame of the lens group; and emergent laser of the photocoagulator is projected to the reflector after passing through the lens group, and is emitted after the deflection angle of the laser is adjusted by the reflector.
Further: the photocoagulation instrument further comprises an imaging lens group and a frame thereof, wherein the imaging lens group is arranged between the lens group and the reflector, and the frame of the imaging lens group is connected with the adapter.
Further, the method comprises the following steps: the rotating frame is positioned on the outer side of the frame of the imaging lens group and is movably connected with the frame of the imaging lens group, and the rotating frame can rotate relative to the frame of the imaging lens group.
Further, the method comprises the following steps: and a damping gasket 102 is arranged at the connection part of the rotating frame and the adapter piece.
Compared with the related art, the adjusting mechanism of the invention has the following advantages: by using the rotatable rotating frame and simultaneously arranging the rotating shaft, the flat reflecting mirror can horizontally rotate around the laser axis along with the rotating frame and can also turn around the rotating shaft in a pitching manner, so that the flat reflecting mirror can be randomly rotated and positioned in a three-dimensional space, and the three-dimensional direction of the emergent laser can be accurately adjusted. Furthermore, the driving lever connected with the rotating shaft is arranged, so that the horizontal rotation and pitching turnover of the laser reflector can be driven by stirring the driving lever, the change of the laser transmission angle is realized, and the light spot can be accurately positioned for treatment. Simple structure, convenient operation has greatly improved the efficiency that doctor diagnosed and treated. The setting of damping piece makes the regulation action accurate in the pivot, and the driving lever locating part that increases can make the doctor operate in effectual level every single move angle, avoids delaying treatment time at invalid overstroke angle.
The photocoagulation instrument of another invention of the utility model also has the advantages.
Drawings
Fig. 1 is a cross-sectional view of an adjustment mechanism of an embodiment of the present invention;
fig. 2 is a structural view of one direction of an adjustment mechanism of an embodiment of the present invention;
FIG. 3 is a block diagram of one direction of an adjustment mechanism of an embodiment of the present invention;
fig. 4 is a structural diagram of a wave washer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood, however, that the description herein is merely illustrative of the present invention and is not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention. The characterization means referred to herein can be referred to the related description in the prior art, and are not repeated herein.
For a further understanding of the present invention, reference will now be made in detail to the preferred embodiments of the present invention.
Example 1
A laser light path adjusting mechanism comprises a reflector and a rotating frame, wherein the reflector is connected with the rotating frame through rotating shafts 105 and 107 and used for adjusting a laser deflection angle, and the rotating frame is rotary and can drive the reflector to rotate around a laser axis 1; the rotating shaft drives the reflector to turn around the rotating shafts 105 and 107; the rotating shaft is provided with a damping part 106, and the damping part 106 provides resistance for the rotation of the rotating shafts 105 and 107.
The rotating frame mainly drives the reflector to horizontally rotate, and can be of a single-arm structure, a double-arm structure or an annular structure. The number of the rotating shafts can be 1, 2 or more, as long as the mirror assembly can be turned around the rotating shafts.
Compared with the related art, the adjusting mechanism of the invention has the following advantages: by using the rotatable rotating frame and simultaneously arranging the rotating shaft, the flat reflecting mirror can horizontally rotate around the laser axis along with the rotating frame and can also turn around the rotating shaft in a pitching manner, so that the flat reflecting mirror can be randomly rotated and positioned in a three-dimensional space, and the three-dimensional direction of the emergent laser can be accurately adjusted. Furthermore, a deflector rod connected with the rotating shaft is arranged, so that the horizontal rotation and pitching turnover of the laser reflector can be driven by poking the deflector rod, the change of the laser transmission angle is realized, and the facula can be accurately positioned for treatment. Simple structure, convenient operation has greatly improved the efficiency that the doctor diagnosed and treated. The setting of damping piece makes the regulation action accurate in the pivot, and the driving lever locating part that increases can make the doctor operate in effectual level every single move angle, avoids delaying treatment time at invalid overstroke angle.
Example 2
On the basis of example 1, further: the reflector is provided with a mirror bracket 112, one end of the rotating shaft is fixedly connected with the mirror bracket 112, and the other end of the rotating shaft penetrates through a through hole in the rotating frame and can rotate in the through hole; the damping part 106 and the rotating shafts 105 and 107 are of an integrated structure or are independent of each other.
Further: the damping part 106 is a damping structure arranged on the surface of the rotating shaft 105, 107 and/or inside the through hole, or is a damper arranged on the rotating shaft.
Further: one end of the rotating shaft 105, 107 is fixedly connected to a knob 108, the knob 108 is used for driving the rotating shaft 105, 107 to rotate, and/or one end of the rotating shaft 105, 107 is fixedly connected to a shifting lever 110, and the shifting lever 110 is used for driving the rotating shaft to rotate and the rotating frame to rotate.
Further: a limiting piece is arranged around the shifting lever 110 and used for limiting the rotation range and the turning angle of the mirror driven by the shifting lever.
Further, the method comprises the following steps: the relationship between the rotation angle of the shift lever 110 and the turning angle of the reflector is 1.
On the basis of the advantages of embodiment 1, the utility model discloses an adjustment mechanism still has following advantage:
a plurality of damping adding modes are provided, and a proper specific component of the damping part and a mode of adding the damper can be selected according to actual operation requirements. The shifting rod and the knob are provided with two modes of driving the rotating shaft to rotate. The locating part can further improve the precision of adjustment, avoids the work load increase that excessive adjustment leads to.
Example 3
A kind of photocoagulation instrument, including lens battery and its frame, is used for regulating the facula size of the laser, including the above-mentioned regulating mechanism, also include: the adaptor is used for connecting the photocoagulation instrument with the adjusting mechanism; the adapter is respectively connected with the rotating frame and the frame of the lens group, and the rotating frame can rotate relative to the frame of the lens group; and emergent laser of the photocoagulator is projected to the reflector after passing through the lens group, and is emitted after the deflection angle of the laser is adjusted by the reflector.
Compared with the prior art, the utility model discloses a light congeals appearance has following advantage:
by using the rotatable rotating frame and arranging the rotating shaft (the axis of the rotating shaft can be perpendicular to the axis of the laser), the flat reflecting mirror can horizontally rotate around the axis of the laser along with the rotating frame and can also turn around the rotating shaft in a pitching manner, so that the flat reflecting mirror can be freely rotated and positioned in a three-dimensional space, and the three-dimensional direction of the emergent laser can be accurately adjusted. Furthermore, the driving lever connected with the rotating shaft is arranged, so that the horizontal rotation and pitching turnover of the laser reflector can be driven by stirring the driving lever, the change of the laser transmission angle is realized, and the light spot can be accurately positioned for treatment. Simple structure, convenient operation has greatly improved the efficiency that the doctor diagnosed and treated. The setting of damping piece makes the regulation action accurate in the pivot, and the driving lever locating part that increases can make the doctor operate in effectual level every single move angle, avoids delaying treatment time at invalid overstroke angle.
Example 4
On the basis of example 3, further: the photocoagulation instrument further comprises an imaging lens group and a frame thereof, wherein the imaging lens group is arranged between the lens group and the reflector, and the frame of the imaging lens group is connected with the adapter ring.
Further, the method comprises the following steps: the rotating frame is positioned on the outer side of the frame of the imaging lens group and is movably connected with the frame of the imaging lens group, and the rotating frame can rotate relative to the frame of the imaging lens group.
Compared with the prior art, the utility model has the advantages of it is following:
the rotating frame can rotate around the laser axis, and the rotating shaft perpendicular to the laser axis is arranged, so that the flat reflecting mirror can rotate around the laser axis along with the rotating frame and can also turn around the rotating shaft in a pitching mode, the flat reflecting mirror can be randomly positioned in a three-dimensional space, and the three-dimensional direction adjustment of emergent laser is achieved. When observing a certain pathological change department, if need the transmission direction of laser among the accurate regulation photocoagulation appearance, can drive the rotation of laser mirror through stirring a driving lever, realize the change of laser transmission angle, and then make the facula can accurate the position of falling treat. Simple structure, convenient operation has greatly improved the efficiency that the doctor diagnosed and treated. The damper enables the adjustment action to be accurate, enables a doctor to operate in an effective horizontal pitching angle, and avoids delaying treatment time at an invalid overtravel angle.
Example 5
As shown in fig. 1 and 2, a laser light path adjusting mechanism includes:
the rotating frame is rotatably supported and fixed on the photocoagulation instrument to be provided with the adjusting mechanism; the rotating frame can rotate around a laser axis 1;
a mirror assembly:
the mirror assembly is fixed on the rotating rack through rotating shafts 105 and 107, and the mirror assembly can be driven by the rotating rack to rotate around the laser axis 1; the mirror assembly is rotatable about the swivel axes 105, 107; the rotating shafts 105, 107 are perpendicular to the laser axis 1; a damping part 106 is arranged between the rotating shafts 105 and 107 and the rotating frame;
a flat reflector 109 is arranged on the reflector component;
further: also comprises
And the shifting lever 110 is connected with the rotating shafts 105 and 107, and the mirror assembly is driven to rotate by rotating the shifting lever 110 and/or driven to rotate around the laser axis 1 by shifting the shifting lever 110 through the support of the rotating rack.
Further, the method comprises the following steps: the number of the rotating shafts 105 and 107 is two, and the deflector rod 110 is connected to one end of one of the rotating shafts; a damping part 106 is arranged between at least one of the rotating shafts and the rotating frame;
and/or a damping piece is arranged between the rotating frame and the photocoagulation instrument to be installed with the adjusting mechanism.
Further: the reflector positioning device further comprises a reflector positioning part 111, one end of the reflector positioning part 111 is hollow, and the deflector rod penetrates into the reflector positioning part and is used for limiting the rotating angle of the reflector assembly driven by the deflector rod 110.
Further: the relation between the rotation angle of the shift lever 110 and the rotation angle of the mirror assembly is 1.
Further: a knob 108 is also included, the knob 108 being connected to the damper 106 between the shaft and the turret.
Further: the damping shim 102 is a wave shim.
A photocoagulation instrument includes foretell adjustment mechanism, still includes: an adapter: the optical coagulator is connected with the adjusting mechanism; the adjusting mechanism is positioned on the light outlet side of the photocoagulation instrument, and the emergent laser of the photocoagulation instrument passes through the lens group and then is projected to the reflector component, and is emitted after the transmission angle is adjusted by the reflector component.
Further: the adaptor is an adaptor ring 101.
On the basis of the structure of the embodiment 1, further: further comprising: and the shifting lever 110 is connected with the rotating shafts 105 and 107, and the shifting lever 110 is rotated to drive the reflector assembly to rotate around the rotating shafts and/or the shifting lever 110 is rotated to drive the reflector assembly to rotate around the laser axis 1 through the support of the rotating rack.
Further: the number of the rotating shafts is two, the rotating shafts are arranged on the left side and the right side of the reflector, and the deflector rod 110 is connected to one end of one rotating shaft; a damping part is arranged between at least one of the rotating shafts and the rotating frame; and/or a damping shim 102 is arranged between the turret and the lens group frame 113.
Damping shim 102 may be a resilient shim or may be made of metal, rubber, nylon, or other materials, but is not limited to the above forms and materials. The damping portion 106 and the rotating shaft are of an integrated structure or are independent of each other. If the surface of the rotating shaft and/or the inner side of the through hole are processed into a rough damping structure, or a wave-shaped gasket is arranged outside the rotating shaft in the through hole, certain resistance is provided for the rotating shaft to rotate in the through hole, or a damper is arranged on the rotating shaft, the rotating damper can be a rotating damper, the outer barrel of the rotating damper is fixed relative to the rotating frame (the outer barrel and the rotating frame can be fixed), the rotating shaft drives the sleeved inner barrel to rotate, and damping force is arranged between the outer barrel and the inner barrel. However, the implementation of the damping portion 106 is not limited to the above structure, and may provide an appropriate resistance to the mirror tilting. Due to the use of the damping part 106, the rotation angle of the mirror assembly can be accurately and precisely adjusted. One configuration when the damping shim 102 and the damping portion 106 are wave shaped shims is shown in fig. 4.
Further: the photocoagulation instrument further comprises an imaging lens group frame 103, wherein an imaging lens group is arranged in the imaging lens group frame 103; the imaging lens group frame is fixed in the adapter, a supporting part 114 which is arranged continuously or discontinuously at intervals is arranged at the periphery of the imaging lens group frame 103, the rotating frame is supported and limited by the supporting part 114, and the rotating frame and the supporting part are movably connected, so that the rotating frame can rotate around a laser axis 1. The supporting portion 114 may be a flange or a groove disposed on the periphery of the imaging lens group frame 103, and a groove or a protrusion disposed on the turret in a matching manner, but is not limited to the above structure, as long as the turret can be supported to rotate around the laser axis.
The lens group frame 113 and the imaging lens group frame 103 are connected by an adapter. The lens group in the lens group frame 113 is used for adjusting the spot size and collimation of the laser, and the imaging lens group further focuses the laser and projects the laser to the flat reflector 109, so that the treatment effect of the laser is better.
Further, the method comprises the following steps: the mirror positioning device further comprises a mirror limiting member 111 for limiting the rotation angle of the mirror assembly driven by the shifting lever 110. The mirror stopper 111 is disposed around the shift lever 110, and is not limited to a specific configuration, as long as it can limit the shift lever. One mode of this embodiment is to use a rod-shaped structure, one end of which is provided with a hollow shape, and the deflector rod penetrates into the hollow shape, for example, the horizontal rotation angle and the pitch rotation angle of the mirror assembly can be limited to ± 10 °, and the mirror assembly is not limited to the above angles, and can be adjusted by changing the size of the hollow portion according to actual needs. The hollow shape of the mirror stopper 111 may be any hollow shape, not limited to a rectangle, a square, a circle, as long as the shift lever can penetrate therethrough and can move therein.
Further: the relation between the rotation angle of the deflector rod 10 and the rotation angle of the reflector assembly is 1.
Further, the method comprises the following steps: the rotary table further comprises a knob 108, the knob 108 is connected with the rotating shaft fixing and rotating frame, and the rotating shaft is driven to rotate through rotating the knob. When the adjusting mechanism is used, the deflector rod 110 can be toggled to adjust the horizontal rotation and the pitching turnover of the flat reflector 109, so that the direction of the laser light path is adjusted. The adjustment of the flat mirror 109 can also be achieved by adjusting the horizontal rotation of the flat mirror 109 by turning the turret and adjusting the tilt of the flat mirror 109 by turning the knob 108.
Further: the damping piece is a wave-shaped gasket.
Further: the gravity center of the shifting rod 110 is in a vertical plane passing through the center line of the rotating shaft, and the error distance is +/-3 mm, so that the reflector assembly can be still after the angle of the reflector assembly is changed after the pitching small-angle adjustment is carried out.
On the basis of embodiment 1 the utility model discloses still have following advantage: the imaging lens group frame 103 can further focus laser light to improve treatment accuracy. The mirror stop may limit the range of motion of the toggle 110 to further avoid moving the flat mirror in an invalid stroke, delaying treatment time at an invalid over-stroke angle. Through setting up the knob, can manual respectively adjust the direction of rotation of flat mirror, provide other schemes for the operation, be suitable for different use operation habits.
Example 6
A photocoagulation instrument comprises the adjusting mechanism and further comprises: an adapter: the optical coagulator is connected with the adjusting mechanism; a lens group and a frame thereof; the adjusting mechanism is connected to the light-emitting side of the lens group frame 113 through an adapter, and the emergent laser of the photocoagulator passes through the lens group and then is projected to the reflector component, and is emitted after the transmission angle is adjusted by the reflector component.
Further: the photocoagulation instrument further comprises an imaging lens group frame 103, wherein an imaging lens group is arranged in the imaging lens group frame 103; the imaging lens group frame is fixed in the adaptor, a support part 114 which is arranged continuously or discontinuously is arranged at the periphery of the imaging lens group frame, and the rotating frame is supported and limited by the support part 114, so that the rotating frame can rotate around the laser axis 1.
On the basis of the embodiment 3, further: the adaptor is an adaptor ring 101.
The adapter ring 101 may be connected to the lens group frame 113 by other means such as threads or screws, but is not limited to the above.
On the basis of embodiment 3, the utility model discloses a photocoagulation appearance passes through the adaptor with adjustment mechanism connects, thereby uses adjustment mechanism adjusts the emergent light path of laser, reaches the effect of adjustment and accurate location treatment facula.
Example 7
As shown in fig. 3 and 4, in another embodiment of the present invention, the mirror fine adjustment mechanism mainly includes an adapter ring 101, a wave washer, an imaging lens set frame 103, a mirror horizontal rotation ring 104, a second rotation shaft 105, a damping portion 106, a first rotation shaft 107, a knob 108, a flat mirror 109, a shift lever 110, a mirror position limiter 111, and a mirror frame 112.
The flat reflector 109 and the reflector bracket 112 are fixedly connected to form a reflector group, one end of each of a first rotating shaft 107 and a second rotating shaft 105 is fixedly embedded in the reflector bracket 112, the other end of the first rotating shaft 107 penetrates through a through hole in a horizontal rotating ring of the reflector and then is in shaft fit with a hole of the damping part 106, the other end of the second rotating shaft 105 is in shaft fit with a hole of the horizontal rotating ring of the reflector 104, the damping part 106 can also be arranged on the second rotating shaft 105, and then the flat reflector 109 can rotate around the first rotating shaft 107 and the second rotating shaft 105 in a pitching manner; the knob 108 is connected with the clamping groove of the damping part 106, is fixedly connected with the rotating shaft 107 and/or is fixedly connected with the deflector rod 110, and the reflector can be tilted and overturned by moving the deflector rod; the deflector rod 110 is pulled to rotate horizontally to drive the reflector horizontal rotating ring 104 to rotate horizontally in the horizontal plane, so that the reflector can be adjusted in the horizontal direction. The reflector horizontal rotating ring 104 is connected with the hole shaft of the imaging lens group lens frame 103, and the wave-shaped gasket is positioned between the adapter ring 101 and the horizontal rotating ring 104 to provide certain resistance.
The upper end of the reflector limiting part 111 is fixed on the support frame, the lower end of the reflector limiting part is provided with a hollow structure, and the deflector rod penetrates through the hollow structure of the limiting part to play a limiting role. The initial state of the flat mirror is horizontal 0 degree and pitching 45 degrees (included angle with the horizontal plane). The deflector rod angle and the reflector rotation angle are 1:1, namely, the poking rod is poked to move 1 degree, and the reflector can rotate 1 degree in a pitching/horizontal mode. The horizontal and pitch tilt angle ranges are both ± 10 °.
The shape of the shift lever 110 needs to be designed considering the following factors:
the center of gravity of the deflector rod is in or near a vertical plane passing through the first rotating shaft 107, so that the horizontal reflecting mirror can be still after the angle of the horizontal reflecting mirror is changed after the deflector rod is adjusted by a small angle.
The stem 110 may be made of a rigid material to provide torsional resistance. The deflector rod may be made of metal, engineering plastic, or the like, but is not limited thereto.
When observing a certain pathological change department, need the transmission direction of laser among the accurate adjustment photocoagulation appearance, drive flat reflector 109 through rotating or stirring driving lever 110 and rotate, realize the change of laser transmission angle in level and pitch direction, and then make the accurate position that falls of facula. The precise adjustment of the mirror in both level and pitch can be simply achieved by the dial 110. Simple structure and convenient operation.
In the embodiment of the present invention, the adjusting mechanism of the present invention can be used in a photocoagulation instrument, and can be understood as the adjusting mechanism is not limited to the above application, and can also be used in a laser device, etc. that needs to use a lens to adjust a light path.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A laser light path adjusting mechanism comprises a reflecting mirror and a rotating frame, wherein the reflecting mirror is connected with the rotating frame through rotating shafts (105, 107) and used for adjusting a laser deflection angle, and the laser light path adjusting mechanism is characterized in that: the rotating frame is rotary and can drive the reflector to rotate around the laser axis (1); the rotating shaft drives the reflector to turn around the rotating shafts (105, 107); the rotating shaft is provided with a damping part (106), and the damping part (106) provides resistance for the rotation of the rotating shafts (105, 107).
2. The adjustment mechanism of claim 1, wherein: the reflector is provided with a mirror bracket (112), one end of the rotating shaft is fixedly connected with the mirror bracket (112), and the other end of the rotating shaft penetrates through a through hole in the rotating frame and can rotate in the through hole; the damping part (106) and the rotating shafts (105, 107) are of an integrated structure or are mutually independent.
3. An adjustment mechanism as set forth in claim 2 wherein: the damping part (106) is a damping structure arranged on the surface of the rotating shaft (105, 107) and/or inside the through hole, or is a damper arranged on the rotating shaft.
4. The adjustment mechanism of claim 1, wherein: one end parts of the rotating shafts (105, 107) are fixedly connected to a knob (108), the knob (108) is used for driving the rotating shafts (105, 107) to rotate, and/or one end parts of the rotating shafts (105, 107) are fixedly connected to a shifting rod (110), and the shifting rod (110) is used for driving the rotating shafts to rotate and the rotating frame to rotate.
5. An adjustment mechanism as set forth in claim 4 wherein: and a limiting piece is arranged around the shifting lever (110) and used for limiting the rotation range and the turnover angle of the reflector driven by the shifting lever.
6. An adjustment mechanism as claimed in claim 4 or 5, wherein: the relation between the rotation angle of the deflector rod (110) and the overturning angle of the reflector is 1.
7. The utility model provides a photocoagulation appearance, includes lens group and frame for adjust the facula size of laser, its characterized in that: comprising an adjustment mechanism according to one of claims 1-6, further comprising: the adaptor is used for connecting the photocoagulation instrument with the adjusting mechanism; the adapter is respectively connected with the rotating frame and the frame of the lens group, and the rotating frame can rotate relative to the frame of the lens group; and the emergent laser of the photocoagulator passes through the lens group and then is projected to the reflector, and the laser is emitted after the deflection angle of the laser is adjusted by the reflector.
8. The photocoagulator of claim 7, wherein: the photocoagulation instrument further comprises an imaging lens group and a frame thereof, wherein the imaging lens group is arranged between the lens group and the reflector, and the frame of the imaging lens group is connected with the adapter.
9. The photocoagulator of claim 8, wherein: the rotating frame is positioned on the outer side of the frame of the imaging lens group and is movably connected with the frame of the imaging lens group, and the rotating frame can rotate relative to the frame of the imaging lens group.
10. A photocoagulator as in any one of claims 7 to 9, wherein: and a damping gasket (102) is arranged at the connection part of the rotating frame and the adaptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320015667.3U CN218824913U (en) | 2023-01-04 | 2023-01-04 | Laser light path adjusting mechanism and photocoagulation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320015667.3U CN218824913U (en) | 2023-01-04 | 2023-01-04 | Laser light path adjusting mechanism and photocoagulation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218824913U true CN218824913U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320015667.3U Active CN218824913U (en) | 2023-01-04 | 2023-01-04 | Laser light path adjusting mechanism and photocoagulation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218824913U (en) |
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2023
- 2023-01-04 CN CN202320015667.3U patent/CN218824913U/en active Active
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