CN115148077A - Ophthalmological teaching aid - Google Patents
Ophthalmological teaching aid Download PDFInfo
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- CN115148077A CN115148077A CN202210520556.8A CN202210520556A CN115148077A CN 115148077 A CN115148077 A CN 115148077A CN 202210520556 A CN202210520556 A CN 202210520556A CN 115148077 A CN115148077 A CN 115148077A
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- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 80
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 description 12
- 238000013532 laser treatment Methods 0.000 description 7
- 210000001508 eye Anatomy 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002430 laser surgery Methods 0.000 description 2
- 238000002647 laser therapy Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
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Abstract
The invention discloses an ophthalmologic teaching aid, belongs to a medical teaching aid, and solves the problems that the angle of an eyeball model cannot be easily fixed and adjusted and the operation is inconvenient in the conventional eyeball model teaching aid during teaching. The invention relates to an ophthalmologic teaching aid, which comprises: a base; the rotary support can be vertically and rotatably arranged on the base; the pitching support can be transversely and rotatably arranged on the rotating support; the simulated eyeball is arranged on the pitching support and can rotate along with the pitching support. According to the ophthalmological teaching aid, the swing of the simulated eyeballs in the vertical direction can be adjusted through the rotary support, the swing of the simulated eyeballs up and down can be adjusted through the pitching support, and the problem that the eyeball teaching aid is inconvenient to adjust manually can be solved.
Description
Technical Field
The invention relates to a medical teaching aid, in particular to an ophthalmologic teaching aid.
Background
With the application of laser technology to fundus disease treatment, fundus laser treatment equipment is widely popularized, and the contradiction that the qualification for fundus laser treatment and the use of fundus laser treatment equipment are well mastered are obvious. Eyeball model teaching aids are required to be used in the process of cultivating relevant practitioners.
In the existing use process of the eyeball model teaching aid, a doctor fixes the teaching aid on ophthalmologic equipment by hands. The hands cannot be released during the entire viewing and simulated treatment, which adds personnel to the simulated treatment. Doctors can also press eyeball model teaching aids with weights or bind the eyeball model teaching aids on ophthalmological equipment, but the methods cannot realize accurate angle adjustment and have the defects of time consumption, personnel increase and low adjustment precision.
Disclosure of Invention
The invention aims to at least solve the problems that the existing eyeball model teaching aid is not easy to fix and adjust the angle of an eyeball model during teaching and is inconvenient to operate. The purpose is realized by the following technical scheme:
a first aspect of the invention provides an ophthalmic teaching aid comprising:
a base;
the rotary support can be vertically and rotatably arranged on the base;
the pitching support can be transversely and rotatably arranged on the rotating support;
the simulated eyeball is arranged on the pitching support and can rotate along with the pitching support.
According to the ophthalmological teaching aid, the swing of the simulated eyeballs in the vertical direction can be adjusted through the rotary support, the swing of the simulated eyeballs up and down can be adjusted through the pitching support, and the problem that manual adjustment of the eyeball teaching aid is inconvenient can be solved.
In addition, according to the invention, the following additional technical features can be provided:
in some embodiments of the present invention, the simulated eyeball is elastically connected to the pitch support through an elastic member.
In some embodiments of the present invention, a plurality of pins are fixed on the simulated eyeball, two of the pins are coaxial and are transversely disposed on two sides of the simulated eyeball, the elastic component includes an elastic sleeve, each pin is sleeved with the elastic sleeve, the pitching support is provided with a plurality of mounting holes, and each elastic sleeve is disposed in the mounting hole, so that the simulated eyeball can move relative to the pitching support.
In some embodiments of the present invention, two sides of the pitching support are respectively provided with a rotating portion, the rotating portions can be transversely and rotatably disposed on the revolving support, two of the plurality of mounting holes are correspondingly formed on the two rotating portions, and respective elastic sleeves on two pin shafts which are coaxial and transversely disposed are correspondingly disposed in the mounting holes of the rotating portions.
In some embodiments of the invention, the ophthalmic teaching aid further comprises a locking ring assembly, the simulated eyeball is positioned in the locking ring assembly and is arranged in a clearance mode, and the locking ring assembly is rotatably arranged on the pitching support; the pin shafts penetrate through the locking ring assembly, and the plurality of pin shafts are distributed along the circumferential direction of the locking ring assembly; the locking ring assembly can lock the pin shaft on the pitching support.
In some embodiments of the present invention, the locking ring assembly includes a first rotating ring and a second rotating ring, an end of the first rotating ring and an end of the second rotating ring are abutted together and embedded in the pitch bracket in a relatively rotatable manner, the end of the first rotating ring and the end of the second rotating ring are respectively provided with a plurality of notches along the circumferential direction of the first rotating ring, each notch of the first rotating ring and each notch of the second rotating ring are oppositely arranged to form a limiting notch, and each pin is arranged in each limiting notch;
when the first rotating ring rotates relative to the second rotating ring along the first circumferential direction of the first rotating ring, each notch on the first rotating ring and each notch on the second rotating ring clamp each pin shaft;
when the first rotating ring rotates relative to the second rotating ring along the second circumferential direction of the first rotating ring, each notch on the first rotating ring and each notch on the second rotating ring are arranged in a clearance mode with each pin shaft, and the pin shafts can move in the limiting openings along the radial direction and the axial direction of the pin shafts.
In some embodiments of the present invention, each of the cutouts of the first swivel and each of the cutouts of the second swivel are formed with a locking portion and an unlocking portion, respectively;
when the first rotating ring rotates relative to the second rotating ring along the first circumferential direction of the first rotating ring, the locking part of each notch on the first rotating ring and the locking part of each notch on the second rotating ring are oppositely arranged to clamp each pin shaft;
when the first rotating ring rotates relative to the second rotating ring along the second circumferential direction of the first rotating ring, the unlocking part of each opening on the first rotating ring and the unlocking part of each opening on the second rotating ring are arranged oppositely, and the unlocking parts on the first rotating ring and the second rotating ring are respectively arranged at intervals with the pin shafts.
In some embodiments of the present invention, the locking ring assembly further comprises a lever assembly rotatably disposed on an outer peripheral surface of the first swivel and an outer peripheral surface of the second swivel, the lever assembly being capable of rotating the first swivel relative to the second swivel in a first circumferential direction of the first swivel when rotated in a first rotational direction; when the deflector rod assembly rotates along the second circumferential direction of the first rotating ring, the first rotating ring can rotate along the second circumferential direction of the first rotating ring relative to the second rotating ring.
In some embodiments of the present invention, the shifter assembly includes a shifter lever and two spools; the two sliding shafts are fixedly arranged on the shifting lever, a first sliding groove extending along the self axial direction is formed in the peripheral surface of the first rotating ring, a second sliding groove extending along the self axial direction is formed in the peripheral surface of the second rotating ring, one sliding shaft is arranged in the first sliding groove in a sliding mode, and the other sliding shaft is arranged in the second sliding groove in a sliding mode.
In some embodiments of the invention, the ophthalmological teaching aid further comprises a frame body, and the base is arranged on the frame body and can be adjusted in height up and down.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 schematically illustrates an overall block diagram of an embodiment of an ophthalmic teaching aid of the present invention;
FIG. 2 schematically illustrates a partial view of the embodiment of the ophthalmic teach pendant of FIG. 1 (the frame is not shown);
FIG. 3 schematically shows a cross-sectional view of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
figure 5 schematically shows an isometric view of a locking ring assembly in an embodiment of an ophthalmic teaching aid of the present invention in relation to the position of a pin;
figure 6 schematically illustrates an isometric view of a locking ring assembly in an embodiment of an ophthalmic teaching aid of the present invention;
figure 7 schematically illustrates a front view of a locking ring assembly in an embodiment of an ophthalmic teaching aid of the present invention;
figure 8 schematically shows an isometric view of a pitch frame in an embodiment of the ophthalmic teaching aid of the invention;
fig. 9 schematically illustrates a diagram of a wedge-shaped gap in a locking ring assembly in an embodiment of an ophthalmic teaching aid of the present invention.
The reference numbers are as follows:
10. a base; 20. a rotating support; 30. a pitch bracket; 30a, mounting holes; 30b, a rotating part; 30c, an opening; 40. simulating an eyeball; 50. a pin shaft; 60. an elastic sleeve; 70. a locking ring assembly; 71. a first swivel; 71a, a first chute; 72. a second swivel; 72a, a second chute; 712a, a locking part, 712b, an unlocking part; 73. a deflector rod assembly; 731. a deflector rod; 732. a slide shaft; 80. a frame body; 81. a lifting column; 82. a lifting platform; e. a wedge surface.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "in 8230 \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
According to an embodiment of the present invention, an ophthalmic teaching aid is provided, as shown in fig. 1 and 2, which may include at least a base 10, a rotation support 20, a tilt support 30, and a simulated eyeball 40; wherein, the rotary bracket 20 can be vertically and rotatably arranged on the base 10; the pitching support 30 can be transversely and rotatably arranged on the rotating support 20; the simulated eyeball 40 is provided on the pitch bracket 30 and can rotate together with the pitch bracket 30.
It is understood that the vertically rotatable arrangement of the revolving support 20 on the base 10 means that the rotation axis of the revolving support 20 on the base 10 is vertical, and the laterally rotatable arrangement of the pitching support 30 on the revolving support 20 means that the rotation axis of the pitching support 30 on the revolving support 20 is horizontal.
The arrangement of the rotating bracket 20 and the pitching bracket 30 enables the simulated eyeball 40 to have at least 2 degrees of freedom, namely, rotation in the vertical direction and up-and-down swinging.
In order to simulate the actual eyeball more truly, in some embodiments, the simulated eyeball 40 is elastically connected with the pitching frame 30 through an elastic component, so as to simulate the elasticity of the eyeball 40, especially when simulating laser therapy, a laser contact lens is buckled on the surface of the eyeball model, and the elasticity of the simulated eyeball 40 can give feedback force for controlling the eye position to an operator, thereby being beneficial to fine adjustment of the eyeball position. The elastic member may be a spring, a cushion pad, etc., and is not particularly limited herein.
In some embodiments, as shown in fig. 2 to 4, a plurality of pins 50 are fixedly disposed on the simulated eyeball 40, two of the pins 50 are coaxially and transversely disposed on two sides of the simulated eyeball 40, the elastic component includes an elastic sleeve 60, each pin 50 is sleeved with the elastic sleeve 60, the pitching support 30 is provided with a plurality of mounting holes 30a, each elastic sleeve 60 is disposed in the mounting hole 30a, and the pins 50 on two sides of the simulated eyeball 40 support the simulated eyeball 40 through the elastic sleeve 60, so that the simulated eyeball 40 can move relative to the pitching support 30. When the simulated eyeball 40 is deformed by an external force to a part of the elastic sleeve 60, the simulated eyeball 40 can slightly move on the pitch support 30. In the preferred embodiment of the present embodiment, the number of the pins 50 is three, the number of the corresponding mounting holes 30a is the same as the number of the pins 50, two of the pins 50 are coaxial and are transversely disposed on two sides of the simulated eyeball 40, and the other pin 50 can be disposed above or below the simulated eyeball 40, so that the simulated eyeball 40 can slightly move when being stressed in any direction, thereby simulating the process of pressing the eyeball by a hand, facilitating the adjustment of the position of the simulated eyeball 40 during the laser surgery, and making the teaching more vivid. When the number of the pins 50 is only two, the two pins 50 are coaxial and are transversely arranged on two sides of the simulated eyeball 40; when the number of the pins 50 is more than three, in addition to two pins 50 transversely disposed on both sides of the simulated eyeball 40 for supporting the simulated eyeball 40, other pins 50 may be disposed on the simulated eyeball 40 according to the requirement.
Further, as shown in fig. 4 and fig. 8, the two sides of the pitching frame 30 are respectively provided with a rotating part 30b, the rotating parts 30b can be laterally and rotatably disposed on the revolving frame 20, for example, the two sides of the pitching frame 30 can be provided with rotating parts 30b formed by rotating shafts or cylindrical protrusions, the two rotating parts 30b are coaxially disposed, the revolving frame 20 can be provided with two shaft holes, the axes of the two shaft holes are also laterally disposed, and each rotating part 30b can be rotatably disposed in the shaft hole to realize the rotation of the pitching frame 30 on the revolving frame 20; two of the plurality of mounting holes 30a are correspondingly formed on the two rotating portions 30b, the positions of the remaining number of mounting holes 30a can be set according to actual requirements, the respective elastic sleeves 60 on the two pin shafts 50 which are coaxially and transversely arranged are correspondingly arranged in the mounting holes 30a of the rotating portions 30b, and the axes of the mounting holes 30a can be collinear with the axes of the rotating portions 30 b.
In order to facilitate understanding of the elastic movement of the simulated eyeball 40 on the pitching support 30, the pitching support 30 can be of an annular structure, the inner surface of the pitching support can be a spherical surface, the simulated eyeball 40 is arranged on the pitching support 30 and is arranged in a gap, when the simulated eyeball 40 is extruded, the elastic sleeve 60 is extruded to generate deformation, the simulated eyeball 40 generates small movement in the pitching support 30 and can also transversely rotate on the rotary support 20 along with the pitching support 30, so that the simulated eyeball 40 has multiple degrees of freedom, the movement process of the simulated eyeball and the feedback force of the eyeball to a human hand when the eyeball is stressed can be more truly realized, and a student in a teaching process can conveniently master the adjustment process of the eyeball position in a laser treatment process.
The elastic sheath 60 may be made of rubber or silica gel, and the specific material is not limited specifically.
In addition to the above improvement, in some embodiments of the present invention, as shown in fig. 4-6, the ophthalmic teaching aid may further include a locking ring assembly 70, the simulated eyeball 40 is located in the locking ring assembly 70 and is arranged with a gap, the locking ring assembly 70 is rotatably arranged on the pitch support 30, that is, the simulated eyeball 40 is arranged on the pitch support 30 through the locking ring assembly 70; the pin shafts 50 are arranged through the locking ring assembly 70, and a plurality of pin shafts 50 are distributed along the circumferential direction of the locking ring assembly 70; the locking ring assembly 70 may lock the pin 50 to the pitch bracket 30.
The locking ring assembly 70 is rotatably disposed on the pitching frame 30, so that the locking ring can only rotate relative to the pitching frame 30, the simulated eyeball 40 and the locking ring assembly 70 are disposed in a gap, when the pin 50 is in an unlocked state, the simulated eyeball 40 can be slightly moved by being pressed by an external force within the gap between the simulated eyeball 40 and the locking ring, and when the pressing force disappears, the simulated eyeball 40 returns to its original position, i.e., the elastic sleeve 60 returns to a deformed state.
Because the eyeball has certain elasticity, a beginner can adjust the eyeball position and is difficult to keep the stability of the eyeball in the operation process of simulating laser treatment, the pin shaft 50 can be locked on the pitching support 30 through the arrangement of the locking ring, so that the simulated eyeball 40 becomes a rigid state, and the teaching and learning of the beginner are facilitated. Thus, the unlocking or locking of the teaching aid by the locking ring assembly 70 is adaptable for use by students at different stages.
The structure of the lock ring assembly 70 is exemplified below.
In some embodiments of the present invention, as shown in fig. 4 to 6, the locking ring assembly 70 may include a first rotating ring 71 and a second rotating ring 72, an end of the first rotating ring 71 and an end of the second rotating ring 72 are abutted together and are relatively rotatably embedded in the pitch bracket 30, the end of the first rotating ring 71 and the end of the second rotating ring 72 are respectively provided with a plurality of notches along a circumferential direction of the first rotating ring 71, each notch of the first rotating ring 71 and each notch of the second rotating ring 72 are oppositely arranged to form a stopper, and each pin 50 is arranged in each stopper;
when the first rotating ring 71 rotates relative to the second rotating ring 72 along the first circumferential direction of the first rotating ring 71, each notch on the first rotating ring 71 and each notch on the second rotating ring 72 clamp each pin shaft 50;
when the first rotating ring 71 rotates relative to the second rotating ring 72 along the second circumferential direction of the first rotating ring 71, each notch on the first rotating ring 71 and each notch on the second rotating ring 72 are arranged with a gap from each pin shaft 50, so that the pin shafts 50 can move along the radial direction and the axial direction of the pin shafts 50 at the limiting notches.
It is understood that the end of the first rotating ring 71 and the end of the second rotating ring 72 abut against each other and are relatively rotatably embedded in the pitch bracket 30, the end of the first rotating ring 71 and the end of the second rotating ring 72 abut against each other and are rotatably connected to each other, and the end of the first rotating ring 71 and the end of the second rotating ring 72 only abut against each other and are rotatably arranged on the pitch bracket 30.
The first circumferential direction and the second circumferential direction are opposite in rotation direction.
The shape of the opening on the first rotating ring 71 and the opening on the second rotating ring 72 can be various, for example, referring to fig. 6, each opening on the first rotating ring 71 can be formed by communicating an arc-shaped opening and a 1/4 kidney-shaped hole, the width of the 1/4 kidney-shaped hole can be equal to or slightly larger than the diameter of the pin shaft 50, the width of the arc-shaped opening along the axial direction of the first rotating ring 71 and the length of the arc-shaped opening along the circumferential direction of the first rotating ring 71 are both larger than the diameter of the pin shaft 50, and the opening structure on the second rotating ring 72 is the same as that on the first rotating ring 71; when the end of the first swivel ring 71 having the notch and the end of the second swivel ring 72 having the notch are snapped together, the notches have a center point, and the notch on the first swivel ring 71 and the notch on the second swivel ring 72 are symmetric with respect to the center point. When the first rotating ring 71 rotates relative to the second rotating ring 72, the size of the limiting opening can be changed, and the locking and unlocking of the pin shaft 50 are realized. As shown in fig. 9, the gap on the first rotating ring 71 and the gap on the second rotating ring 72 may also be wedge-shaped, and by the rotation of the first rotating ring 71 relative to the second rotating ring 72, the distance between the wedge surface e of the gap on the first rotating ring 71 and the wedge surface e of the gap on the second rotating ring 72 can be changed, so as to lock or unlock the pin 50.
Further, each slit of the first swivel 71 and each slit of the second swivel 72 are formed with a locking part 712a and an unlocking part, respectively; when the first rotary ring 71 rotates relative to the second rotary ring 72 along the first circumferential direction of the first rotary ring 71, the locking part 712a of each notch on the first rotary ring 71 and the locking part 712a of each notch on the second rotary ring 72 are oppositely arranged to clamp each pin 50; when the first rotating ring 71 rotates relative to the second rotating ring 72 along the second circumferential direction of the first rotating ring 71, the unlocking part of each notch on the first rotating ring 71 is opposite to the unlocking part of each notch on the second rotating ring 72, and the unlocking parts on the first rotating ring 71 and the second rotating ring 72 are respectively arranged at intervals with each pin shaft 50. For example, the circular arc-shaped notch described above may be used as the unlocking portion and the 1/4-waist-shaped hole as the locking portion 712a, and the portion of the wedge surface that does not restrain the pin 50 during locking may be used as the unlocking portion and the portion that restrains the pin 50 may be used as the locking portion 712a.
In order to facilitate manipulation of the relative rotation of the first and second rotating rings 71 and 72, the locking ring assembly 70 further comprises a lever assembly 73, in some embodiments of the present invention, the lever assembly 73 is rotatably disposed on an outer peripheral surface of the first rotating ring 71 and an outer peripheral surface of the second rotating ring 72, and when the lever assembly 73 is rotated in a first rotating direction, the first rotating ring 71 can be rotated relative to the second rotating ring 72 in a first circumferential direction of the first rotating ring 71; the lever assembly 73 rotates in the second circumferential direction of the first rotary ring 71, so that the first rotary ring 71 rotates in the second circumferential direction of the first rotary ring 71 relative to the second rotary ring 72.
The structure of the toggle lever assembly 73 is exemplarily listed below.
In some embodiments of the present invention, as shown in fig. 7, the toggle lever assembly 73 includes a toggle lever 731 and two spools 732; the two sliding shafts 732 are fixedly disposed on the shift lever 731, the outer circumferential surface of the first rotating ring 71 is provided with a first sliding groove 71a extending along the axial direction thereof, the outer circumferential surface of the second rotating ring 72 is provided with a second sliding groove 72a extending along the axial direction thereof, one of the sliding shafts 732 is slidably disposed in the first sliding groove 71a, and the other sliding shaft 732 is slidably disposed in the second sliding groove 72 a.
The first and second swivels 71 and 72 are rotatable only within a certain rotation angle range by the lever 731, that is, the lever 731 is rotatable to have a maximum rotation position in a forward direction and a maximum rotation position in a reverse direction, and when the lever 731 is rotatable, the slide shafts 732 in the first and second slide grooves 71a and 72a not only move in the grooves but also rotate themselves, and the first and second slide shafts 732 and 732 are provided so as to accommodate a change in the axial position of the slide shaft 732 with respect to the first or second swivel 71 and 72 when the lever 731 is rotatable. The locking ring assembly 70 can lock the pin shaft 50 when the shift lever 731 is rotated in the forward direction to the maximum rotational position, and the locking ring assembly 70 can unlock the pin shaft 50 when the shift lever 731 is rotated in the reverse direction to the maximum rotational position. It is to be understood that the forward and reverse directions in the present invention are not intended to be specific directions, but are merely for explaining the reverse of the rotational motion of the shift lever 731. In some embodiments of the present invention, toggle assembly 73 includes toggle 731 and two spools 732; two sliding shafts 732 are fixedly arranged on the shift lever 731, an outer circumferential surface of the first rotary ring 71 is provided with a first sliding groove 71a extending along the axial direction thereof, one of the sliding shafts 732 is rotatably arranged on an outer circumferential surface of the second rotary ring 72, and the other sliding shaft 732 is slidably arranged in the first sliding groove 71 a.
In some embodiments of the present invention, when the pitching support 30 has a ring-shaped structure, the locking ring assembly 70 can be covered, the pitching support 30 can be provided with an opening 30c, the shift lever 731 can be disposed in the opening 30c, and the position of the opening 30c can be set according to the convenience of operation.
In some embodiments of the present invention, the ophthalmological teaching aid further includes a frame body 80, the base 10 is disposed on the frame body 80 and can be adjusted in height up and down, and can be set according to the teaching requirement, the frame body 80 can include a lifting table 82 and at least two lifting columns 81, the lifting table 82 is screwed on the lifting columns 81, the base 10 can be fixed on the lifting table 82, and the height of the lifting table 82 can be adjusted by adjusting the lifting columns 81, so as to meet the teaching requirement. The lifting platform 82 can also be arranged on the lifting column 81 in a sliding manner, and a locking nut is connected to the lifting column 81 in a threaded manner and used for fixing the lifting platform 82.
Compared with the prior art, the invention has the following advantages:
1. the hand feeling of the simulated eyeball can be adjusted flexibly, particularly, when the simulated laser therapy is carried out, a laser contact lens is buckled on the surface of the simulated eyeball 40, the elasticity of the simulated eyeball 40 can provide feedback force for controlling the eye position for an operator, and fine adjustment of the position of the eyeball is facilitated. The unlocking of the locking ring component or the adjustment of the locking pin shaft on the pitching support by the eyeball can be simulated, and students in different stages can master the operation process of the eye laser surgery.
2. The rotary support and the pitching support are arranged, different angles can be adjusted, the rotation of eyeballs during examination and laser treatment can be simulated, and eyeground observation, laser treatment and the like at different eyeball positions can be simulated.
3. The base sets up on height-adjustable's support body, can be through the position height of adjustment simulation eyeball to be convenient for the student and observe.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An ophthalmic teaching aid, comprising:
a base;
the rotary support can be vertically and rotatably arranged on the base;
the pitching support can be transversely and rotatably arranged on the rotating support;
the simulated eyeball is arranged on the pitching support and can rotate along with the pitching support.
2. An ophthalmic teaching aid as claimed in claim 1, wherein the simulated eye ball is resiliently connected to the pitch support by a resilient member.
3. An ophthalmological teaching aid according to claim 2, wherein a plurality of pins are fixedly arranged on the simulated eyeball, two of the pins are coaxially and transversely arranged on two sides of the simulated eyeball, the elastic component comprises elastic sleeves, each pin is sleeved with the elastic sleeve, a plurality of mounting holes are arranged on the pitching support, and each elastic sleeve is arranged in the mounting hole so that the simulated eyeball can move relative to the pitching support.
4. An ophthalmic teaching aid according to claim 3, wherein the pitch support has a rotation portion on each side, the rotation portion is laterally rotatably disposed on the rotation support, two corresponding mounting holes are formed on the two rotation portions, and the two coaxial and laterally disposed elastic sleeves on the two pins are correspondingly disposed in the mounting holes of the rotation portion.
5. An ophthalmic teaching aid according to claim 3 or 4, further comprising a locking ring assembly, wherein the simulated eyeball is located in the locking ring assembly and is arranged in a gap, and the locking ring assembly is rotatably arranged on the pitch support; the pin shafts penetrate through the locking ring assembly, and the plurality of pin shafts are distributed along the circumferential direction of the locking ring assembly; the locking ring assembly can lock the pin shaft on the pitching support.
6. An ophthalmic teaching aid according to claim 5, wherein the locking ring assembly comprises a first rotating ring and a second rotating ring, the end part of the first rotating ring and the end part of the second rotating ring are attached together and can be embedded into the pitching bracket in a relative rotation manner, the end part of the first rotating ring and the end part of the second rotating ring are respectively provided with a plurality of notches along the circumferential direction of the first rotating ring, each notch of the first rotating ring and each notch of the second rotating ring are oppositely arranged to form a limiting opening, and each pin is arranged in each limiting opening;
when the first rotating ring rotates relative to the second rotating ring along the first circumferential direction of the first rotating ring, each notch on the first rotating ring and each notch on the second rotating ring clamp each pin shaft;
when the first rotating ring rotates relative to the second rotating ring along the second circumferential direction of the first rotating ring, each notch on the first rotating ring and each notch on the second rotating ring are arranged in a clearance mode with each pin shaft, and the pin shafts can move in the limiting openings along the radial direction and the axial direction of the pin shafts.
7. An ophthalmic teaching aid according to claim 6 wherein each opening of the first swivel and each opening of the second swivel is formed with a locking portion and an unlocking portion respectively;
when the first rotating ring rotates relative to the second rotating ring along the first circumferential direction of the first rotating ring, the locking part of each notch on the first rotating ring and the locking part of each notch on the second rotating ring are oppositely arranged to clamp each pin shaft;
when the first rotating ring rotates relative to the second rotating ring along the second circumferential direction of the first rotating ring, the unlocking part of each opening on the first rotating ring and the unlocking part of each opening on the second rotating ring are arranged oppositely, and the unlocking parts on the first rotating ring and the second rotating ring are respectively arranged at intervals with the pin shafts.
8. The ophthalmic teaching aid of claim 7, wherein the lock ring assembly further comprises a lever assembly rotatably disposed on an outer peripheral surface of the first swivel and an outer peripheral surface of the second swivel, the lever assembly being rotatable in a first rotational direction to rotate the first swivel relative to the second swivel in a first circumferential direction of the first swivel; when the deflector rod assembly rotates along the second circumferential direction of the first rotating ring, the first rotating ring can rotate along the second circumferential direction of the first rotating ring relative to the second rotating ring.
9. An ophthalmic teaching aid as claimed in claim 8, wherein the shifter assembly comprises a shifter and two slide shafts; the two sliding shafts are fixedly arranged on the shifting lever, a first sliding groove extending along the self axial direction is formed in the peripheral surface of the first rotating ring, a second sliding groove extending along the self axial direction is formed in the peripheral surface of the second rotating ring, one sliding shaft is arranged in the first sliding groove in a sliding mode, and the other sliding shaft is arranged in the second sliding groove in a sliding mode.
10. An ophthalmic teaching aid as claimed in any of claims 1 to 4, further comprising a frame on which the base is arranged to be adjustable in height.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520556.8A CN115148077B (en) | 2022-05-13 | 2022-05-13 | Ophthalmic teaching aid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210520556.8A CN115148077B (en) | 2022-05-13 | 2022-05-13 | Ophthalmic teaching aid |
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| CN115148077A true CN115148077A (en) | 2022-10-04 |
| CN115148077B CN115148077B (en) | 2024-05-17 |
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| CN202210520556.8A Active CN115148077B (en) | 2022-05-13 | 2022-05-13 | Ophthalmic teaching aid |
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|---|---|
| CN115148077B (en) | 2024-05-17 |
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