CN115148077B - Ophthalmic teaching aid - Google Patents
Ophthalmic teaching aid Download PDFInfo
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- CN115148077B CN115148077B CN202210520556.8A CN202210520556A CN115148077B CN 115148077 B CN115148077 B CN 115148077B CN 202210520556 A CN202210520556 A CN 202210520556A CN 115148077 B CN115148077 B CN 115148077B
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- 210000005252 bulbus oculi Anatomy 0.000 claims abstract description 79
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 238000013532 laser treatment Methods 0.000 description 9
- 210000001508 eye Anatomy 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002430 laser surgery Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computational Mathematics (AREA)
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- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Algebra (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medical Informatics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
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- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Prostheses (AREA)
Abstract
The invention discloses an ophthalmic teaching aid, belongs to a medical teaching aid, and aims to solve the problems that an 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 invention provides an ophthalmic teaching aid, comprising: a base; the rotary bracket can be vertically and rotatably arranged on the base; the pitching bracket is transversely rotatably arranged on the rotary bracket; the simulated eyeball is arranged on the pitching support and can rotate along with the pitching support. According to the ophthalmic teaching aid, the swing of the eyeball in the vertical direction can be adjusted and simulated through the rotary support, the swing of the eyeball up and down can be adjusted and simulated through the pitching support, and the problem that the manual adjustment of the eyeball teaching aid is inconvenient can be solved.
Description
Technical Field
The invention relates to a medical teaching aid, in particular to an ophthalmic teaching aid.
Background
As the application of laser technology to fundus disease treatment has led to the widespread popularity of fundus laser treatment apparatuses, there is a consequent lack of contradiction between the qualification of fundus laser treatment and the lack of doctors and practitioners who are skilled in the use of fundus laser treatment apparatuses. An eye model teaching tool is required to be used in the process of culturing relevant practitioners.
In the current use of the eye model teaching aid, a doctor uses his hands to fix the teaching aid on the ophthalmic device. The hands cannot be released throughout the observation and simulation of the treatment, which can lead to an increase in personnel during the simulation of the treatment. Doctors can also press the eyeball model teaching aid by using a weight or bind the eyeball model teaching aid on ophthalmic equipment, but the methods can not 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 conventional 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 aim is achieved by the following technical scheme:
A first aspect of the present invention proposes an ophthalmic teaching aid comprising:
A base;
the rotary bracket can be vertically and rotatably arranged on the base;
the pitching bracket is transversely rotatably arranged on the rotary bracket;
The simulated eyeball is arranged on the pitching support and can rotate along with the pitching support.
According to the ophthalmic teaching aid, the swing of the eyeball in the vertical direction can be adjusted and simulated through the rotary support, and the swing of the eyeball up and down can be adjusted and simulated through the pitching support, so that the problem of inconvenience in manual adjustment of the eyeball teaching aid can be solved.
In addition, according to the invention, the following additional technical features can be provided:
in some embodiments of the invention, the simulated eyeball is elastically connected to the pitching frame via an elastic component.
In some embodiments of the present invention, a plurality of pins are fixedly arranged on the simulated eyeball, two pins are coaxially and transversely arranged on two sides of the simulated eyeball, the elastic component comprises elastic sleeves, the elastic sleeves are sleeved on each pin, a plurality of mounting holes are formed in the pitching support, and each elastic sleeve is arranged in each 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 part, the rotating parts are rotatably arranged on the revolving support in a transverse direction, two of the plurality of mounting holes are correspondingly formed on the two rotating parts, and respective elastic sleeves on two pin shafts which are coaxially and transversely arranged are correspondingly arranged in the mounting holes of the rotating parts.
In some embodiments of the invention, the ophthalmic teaching aid further comprises a locking ring assembly, wherein the simulated eyeball is positioned in the locking ring assembly and is arranged in a gap, 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 swivel and a second swivel, the end of the first swivel and the end of the second swivel are close together and are embedded in the pitching support in a relatively rotatable manner, the end of the first swivel and the end of the second swivel are respectively provided with a plurality of openings along the circumferential direction of the first swivel, each opening of the first swivel and each opening of the second swivel are oppositely arranged to form a limiting opening, and each pin is arranged in each limiting opening;
When the first swivel rotates relative to the second swivel along the first circumferential direction of the first swivel, each opening on the first swivel and each opening on the second swivel clamps each pin shaft;
When the first swivel rotates relative to the second swivel along the second circumferential direction of the first swivel, each opening on the first swivel and each opening on the second swivel are in clearance arrangement with each pin shaft, so that the pin shafts can move along the radial direction and the axial direction of the pin shafts at the limiting openings.
In some embodiments of the present invention, each opening of the first swivel and each opening of the second swivel are respectively formed with a locking portion and an unlocking portion;
When the first swivel rotates relative to the second swivel along the first circumferential direction of the first swivel, the locking part of each opening on the first swivel and the locking part of each opening on the second swivel are oppositely arranged to clamp each pin shaft;
When the first swivel rotates along the second circumferential direction of the first swivel relative to the second swivel, the unlocking part of each opening on the first swivel and the unlocking part of each opening on the second swivel are arranged oppositely, and the unlocking parts of the first swivel and the second swivel are respectively arranged in a clearance with each pin shaft.
In some embodiments of the present invention, the locking ring assembly further includes a lever assembly rotatably disposed on an outer circumferential surface of the first swivel and an outer circumferential surface of the second swivel, the lever assembly being rotatable with respect 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 swivel, the first swivel can rotate along the second circumferential direction of the first swivel relative to the second swivel.
In some embodiments of the present invention, the lever assembly includes a lever and two slide shafts; the two sliding shafts are fixedly arranged on the deflector rod, a first sliding groove extending along the axial direction of the first sliding shaft is formed in the outer peripheral surface of the first rotating ring, a second sliding groove extending along the axial direction of the second sliding shaft is formed in the outer peripheral surface of the second rotating ring, one sliding shaft is slidably arranged in the first sliding groove, and the other sliding shaft is slidably arranged in the second sliding groove.
In some embodiments of the invention, the ophthalmic teaching aid further comprises a frame, and the base is disposed on the frame and can adjust the 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 reference numerals are used to designate like parts throughout the figures. 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 teaching aid 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;
FIG. 5 schematically illustrates an isometric view of a locking ring assembly versus pin location in an ophthalmic teaching aid embodiment of the present invention;
FIG. 6 schematically illustrates an isometric view of a locking ring assembly in an ophthalmic teaching aid embodiment of the present invention;
FIG. 7 schematically illustrates a front view of a locking ring assembly in an ophthalmic teaching aid embodiment of the present invention;
FIG. 8 schematically illustrates an isometric view of a pitch bracket in an embodiment of an ophthalmic teaching aid of the present invention;
figure 9 schematically illustrates a wedge-shaped notch in a locking ring assembly in an ophthalmic teaching aid embodiment of the present invention.
The reference numerals are as follows:
10. A base; 20. a swivel bracket; 30. a pitch bracket; 30a, mounting holes; 30b, a rotating part; 30c, openings; 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, locking portions, 712b, unlocking portions; 73. a deflector rod assembly; 731. a deflector rod; 732. a slide shaft; 80. a frame body; 81. lifting columns; 82. a lifting table; e. 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 an order of performance is explicitly stated. It should also be appreciated 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 ease 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. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship 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 swivel stand 20, a pitching stand 30, and a simulated eyeball 40; wherein the revolving support 20 is vertically rotatably arranged on the base 10; the pitching frame 30 is rotatably provided on the slewing frame 20 in the lateral direction; the simulated eyeball 40 is disposed on the pitching support 30 and is rotatable with the pitching support 30.
It will be appreciated that vertically rotatably disposing the slewing bracket 20 on the base 10 means that the rotation axis of the slewing bracket 20 on the base 10 is vertical, and laterally rotatably disposing the pitching bracket 30 on the slewing bracket 20 means that the rotation axis of the pitching bracket 30 on the slewing bracket 20 is laterally disposed.
By the arrangement of the swivel bracket 20 and the pitching bracket 30, the simulated eyeball 40 has at least 2 degrees of freedom, namely, rotation in the vertical direction and up-and-down swinging.
In order to more actually simulate the actual eyeball, in some embodiments, the simulated eyeball 40 is elastically connected with the pitching support 30 through an elastic component, so that the elasticity of the eyeball 40 can be simulated, particularly, when the simulated laser treatment is performed, a laser contact lens is buckled on the surface of the eyeball model, and the elasticity of the simulated eyeball 40 can give the operator feedback force for controlling the position of the eye, so that the fine adjustment of the position of the eyeball is facilitated. The elastic member may be a spring, a cushion, or the like, and is not particularly limited herein.
In some embodiments, as shown in fig. 2-4, a plurality of pins 50 are fixedly arranged on the simulated eyeball 40, wherein two pins 50 are coaxially and transversely arranged at two sides of the simulated eyeball 40, the elastic component comprises elastic sleeves 60, each pin 50 is sleeved with an elastic sleeve 60, the pitching support 30 is provided with a plurality of mounting holes 30a, each elastic sleeve 60 is arranged in the mounting hole 30a, and the pins 50 at two sides of the simulated eyeball 40 support the simulated eyeball 40 through the elastic sleeves 60, so that the simulated eyeball 40 can move relative to the pitching support 30. When the simulated eyeball 40 is pressed and deformed by the external force, a part of the elastic sleeve 60 in the simulated eyeball 40 can generate tiny movement on the pitching support 30. In the preferred embodiment of the present embodiment, the number of the pins 50 is three, and the number of the corresponding mounting holes 30a is also three as the number of the pins 50, where two pins 50 are coaxial and transversely arranged on two sides of the simulated eyeball 40, and the other pins 50 can be arranged above or below the simulated eyeball 40, so that micro movement of the simulated eyeball 40 can be generated when the simulated eyeball 40 is stressed in any direction, and thus the process of pressing the eyeball by an actual hand can be simulated, which is beneficial to simulating the adjustment of the position of the eyeball 40 in the laser operation process, and makes the teaching more visual. When the number of the pin shafts 50 is only two, the two pin shafts 50 are coaxial and are transversely arranged at two sides of the simulated eyeball 40; when the number of the pins 50 is more than three, other pin 50 orientations may be set on the simulated eyeball 40 as required, except for two pins 50 which are transversely provided on both sides of the simulated eyeball 40 and serve to support the simulated eyeball 40.
Further, as shown in fig. 4 and 8, two sides of the pitching frame 30 are respectively provided with a rotation part 30b, the rotation parts 30b are rotatably arranged on the slewing frame 20 in a transverse direction, for example, rotation parts 30b formed by rotating shafts or cylindrical protrusions can be arranged at two sides of the pitching frame 30, the two rotation parts 30b are coaxially arranged, two shaft holes can be arranged on the slewing frame 20, the axes of the two shaft holes are also transversely arranged, and each rotation part 30b is rotatably arranged in the shaft hole so as to realize the rotation of the pitching frame 30 on the slewing frame 20; two of the plurality of mounting holes 30a are correspondingly formed on the two rotating portions 30b, the positions of the rest of the plurality of mounting holes 30a can be set according to actual requirements, the respective elastic sleeves 60 on the two coaxial and transversely arranged pin shafts 50 are correspondingly arranged in the mounting holes 30a of the rotating portions 30b, and the axis of the mounting holes 30a can be collinear with the axis of the rotating portions 30 b.
In order to facilitate understanding of elastic movement of the simulated eyeball 40 on the pitching support 30, the pitching support 30 may be in a ring-shaped structure, the inner surface of the pitching support 30 may be a spherical surface, the simulated eyeball 40 is arranged on the pitching support 30 and is in clearance arrangement, when the simulated eyeball 40 is extruded, the elastic sleeve 60 is extruded to deform, the simulated eyeball 40 moves slightly in the pitching support 30, and simultaneously can also rotate transversely on the revolving support 20 along with the pitching support 30, so that the simulated eyeball 40 has multiple degrees of freedom, and can more truly model the movement process of the eyeball and the feedback force of the eyeball on a human hand when the eyeball is stressed, thereby facilitating the scholars to grasp the adjustment process of the eyeball position in the laser treatment process in the teaching process.
The elastic sleeve 60 may be made of some elastic materials such as rubber or silica gel, and the specific material is not limited.
On the basis of the 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 disposed in a gap, and the locking ring assembly 70 is rotatably disposed on the pitching support 30, that is, the simulated eyeball 40 is disposed on the pitching support 30 through the locking ring assembly 70; the pin shafts 50 are disposed through the locking ring assembly 70, and the 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 arranged on the pitching support 30, so that the locking ring can only rotate relative to the pitching support 30, the simulated eyeball 40 and the locking ring assembly 70 are in clearance arrangement, when the pin 50 is in an unlocking state, the simulated eyeball 40 can be extruded by external force within the clearance range between the simulated eyeball and the locking ring to generate micro movement, and when the extrusion force disappears, the simulated eyeball 40 is restored to the original position, namely, the state when the elastic sleeve 60 is restored to deformation.
Because the eyeball has certain elasticity, a beginner can adjust the eyeball position in the operation process of simulated laser treatment, so that the stability of the eyeball is difficult to maintain, and 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 beginner is favorable for teaching and learning. Thus, the teaching aid of the present invention can be adapted for use by a learner at different stages by unlocking or locking the locking ring assembly 70.
The structure of the locking ring assembly 70 is exemplified below.
In some embodiments of the present invention, as shown in fig. 4-6, the locking ring assembly 70 may include a first swivel 71 and a second swivel 72, where an end of the first swivel 71 and an end of the second swivel 72 are abutted together and are relatively rotatably embedded in the pitch bracket 30, the end of the first swivel 71 and the end of the second swivel 72 are respectively provided with a plurality of openings along a circumference of the first swivel 71, each opening of the first swivel 71 and each opening of the second swivel 72 are oppositely disposed to form a limit opening, and each pin 50 is disposed in each limit opening;
When the first swivel 71 rotates relative to the second swivel 72 along the first circumferential direction of the first swivel 71, each notch on the first swivel 71 and each notch on the second swivel 72 clamps each pin 50;
When the first swivel 71 rotates relative to the second swivel 72 along the second circumferential direction of the first swivel 71, each opening on the first swivel 71 and each opening on the second swivel 72 are disposed in a gap with each pin 50, so that the pin 50 can move along the radial and axial directions of the pin 50 at the limiting opening.
It will be appreciated that the end of the first swivel 71 and the end of the second swivel 72 abut together and are rotatably embedded in the pitch bracket 30, either by the end of the first swivel 71 and the end of the second swivel 72 abutting together and rotatably being rotatably mounted in the pitch bracket 30 after being rotatably connected, or by the end of the first swivel 71 and the end of the second swivel 72 abutting only and rotatably mounted in the pitch bracket 30 after being rotatably connected.
The first circumferential direction and the second circumferential direction are opposite in rotation direction.
The shape of the notch on the first swivel 71 and the notch on the second swivel 72 may be various, for example, referring to fig. 6, each notch on the first swivel 71 may be formed by a circular arc notch and a 1/4 waist-shaped hole, the width of the 1/4 waist-shaped hole may be equal to or slightly larger than the diameter of the pin 50, the width of the circular arc notch along the axis direction of the first swivel 71 and the length along the circumferential direction of the first swivel 71 are both larger than the diameter of the pin 50, and the notch structure on the second swivel 72 is the same as that on the first swivel 71; when the end of the first swivel 71 with the opening and the end of the second swivel 72 with the opening are buckled together, the openings of the two have a center point, and the openings on the first swivel 71 and the openings on the second swivel 72 are symmetrical with respect to the center point. When the first swivel 71 rotates relative to the second swivel 72, the size of the limiting opening can be changed, so that locking and unlocking of the pin 50 are realized. As shown in fig. 9, the notch on the first swivel 71 and the notch on the second swivel 72 may be wedge-shaped, and by rotating the first swivel 71 relative to the second swivel 72, the distance between the wedge surface e of the notch on the first swivel 71 and the wedge surface e of the notch on the second swivel 72 may be changed, so as to lock or unlock the pin 50.
Further, each notch of the first swivel 71 and each notch of the second swivel 72 are formed with a locking portion 712a and an unlocking portion, respectively; when the first swivel 71 rotates relative to the second swivel 72 along the first circumferential direction of the first swivel 71, the locking part 712a of each opening on the first swivel 71 and the locking part 712a of each opening on the second swivel 72 are oppositely arranged to clamp each pin 50; when the first swivel 71 rotates relative to the second swivel 72 along the second circumferential direction of the first swivel 71, the unlocking portion of each opening on the first swivel 71 and the unlocking portion of each opening on the second swivel 72 are disposed opposite to each other, and the unlocking portions of the first swivel 71 and the second swivel 72 are disposed in a gap with each pin 50. For example, the circular arc-shaped notch listed above may be used as the unlocking portion, the 1/4 waist-shaped hole may be used as the locking portion 712a, and a portion of the wedge surface that does not restrict the pin 50 during locking may be used as the unlocking portion, and a portion that restricts the pin 50 may be used as the locking portion 712a.
The relative rotation of the first swivel 71 and the second swivel 72 realizes unlocking and locking of the pin 50, so that the relative rotation of the first swivel 71 and the second swivel 72 can be controlled more conveniently, in some embodiments of the present invention, the locking ring assembly 70 further includes a deflector rod assembly 73, the deflector rod assembly 73 is rotatably disposed on the outer peripheral surface of the first swivel 71 and the outer peripheral surface of the second swivel 72, and when the deflector rod assembly 73 rotates along the first rotation direction, the first swivel 71 can rotate along the first circumferential direction of the first swivel 71 relative to the second swivel 72; when the shift lever assembly 73 rotates along the second circumferential direction of the first rotating ring 71, the first rotating ring 71 can rotate relative to the second rotating ring 72 along the second circumferential direction of the first rotating ring 71.
The structure of the lever assembly 73 is exemplified below.
In some embodiments of the present invention, as shown in FIG. 7, the toggle assembly 73 includes a toggle 731 and two slide shafts 732; two slide shafts 732 are fixedly provided on the shift lever 731, the outer peripheral surface of the first swivel 71 is provided with a first slide groove 71a extending in the axial direction thereof, the outer peripheral surface of the second swivel 72 is provided with a second slide groove 72a extending in the axial direction thereof, one of the slide shafts 732 is slidably provided in the first slide groove 71a, and the other slide shaft 732 is slidably provided in the second slide groove 72 a.
By providing the shift lever 731, the first swivel 71 and the second swivel 72 can be rotated only in a certain rotation angle range, that is, the shift lever 731 has a forward maximum rotation position and a reverse maximum rotation position when rotated, and when rotated, the slide shafts 732 in the first slide groove 71a and the second slide groove 72a move not only in the grooves but also the slide shafts 732 themselves, and the first slide shaft 732 and the second slide shaft 732 are provided so as to adapt to the axial position change of the slide shafts 732 with respect to the first swivel 71 or the second swivel 72 when the shift lever 731 is rotated. The locking ring assembly 70 may lock the pin 50 when the toggle 731 is rotated forward to the maximum rotational position, and the locking ring assembly 70 may unlock the pin 50 when the toggle 731 is rotated backward to the maximum rotational position. It will be appreciated that the forward and reverse directions in the present invention are not intended to be specific, but merely to illustrate the opposite of the rotational action of the toggle 731. In some embodiments of the present invention, the toggle assembly 73 includes a toggle 731 and two slide shafts 732; two slide shafts 732 are fixedly provided on the shift lever 731, the outer peripheral surface of the first swivel 71 is provided with a first slide groove 71a extending in the axial direction thereof, one of the slide shafts 732 is rotatably provided on the outer peripheral surface of the second swivel 72, and the other slide shaft 732 is slidably provided in the first slide groove 71 a.
In some embodiments of the present invention, when the pitch bracket 30 has a ring structure, the locking ring assembly 70 may be covered, the pitch bracket 30 may be provided with an opening 30c, the toggle 731 is disposed in the opening 30c, and the position of the opening 30c may be set according to convenience of operation.
In some embodiments of the present invention, the ophthalmic teaching aid further includes a frame 80, the base 10 is disposed on the frame 80 and can be adjusted in height up and down, the frame 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 teaching requirements. The lifting table 82 is also slidably disposed on the lifting column 81, and the lifting column 81 is screwed with a locking nut for fixing the lifting table 82.
Compared with the prior art, the invention has the following advantages:
1. The hand feeling of the simulated eyeball can be adjusted flexibly and hard, particularly when the simulated laser treatment is performed, the laser contact lens is buckled on the surface of the simulated eyeball 40, and the elasticity of the simulated eyeball 40 can give the feedback force for controlling the eye position to an operator, so that the fine adjustment of the eyeball position is facilitated. The locking ring assembly can be unlocked or the locking pin shaft can be used for realizing the adjustment of the softness and hardness of the simulated eyeball on the pitching support, so that students at different stages can master the operation process of eye laser surgery.
2. The rotary support and the pitching support are arranged, so that different angles can be adjusted, rotation of eyeballs during inspection and laser treatment can be simulated, and eyeground observation, laser treatment simulation and the like under different eyeball positions can be facilitated.
3. The base is arranged on the height-adjustable frame body, and the position of the simulated eyeball can be adjusted, so that the student can observe conveniently.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (8)
1. An ophthalmic teaching aid, comprising:
A base;
the rotary bracket can be vertically and rotatably arranged on the base;
the pitching bracket is transversely rotatably arranged on the rotary bracket;
the simulated eyeball is arranged on the pitching support and can rotate along with the pitching support, a plurality of pin shafts are fixedly arranged on the simulated eyeball, and two pin shafts are coaxial and transversely arranged on two sides of the simulated eyeball;
the simulated eyeball is positioned in the locking ring assembly and is arranged in a clearance way, the locking ring assembly is rotatably arranged on the pitching support, the pin shafts penetrate through the locking ring assembly, and the 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, the locking ring assembly comprises a first swivel and a second swivel, the end part of the first swivel and the end part of the second swivel are close together and can be embedded in the pitching support in a relatively rotatable manner, a plurality of openings are respectively formed in the end part of the first swivel and the end part of the second swivel along the circumferential direction of the first swivel, a limiting opening is formed by arranging each opening of the first swivel and each opening of the second swivel relatively, and each pin shaft is arranged in each limiting opening;
When the first swivel rotates relative to the second swivel along the first circumferential direction of the first swivel, each opening on the first swivel and each opening on the second swivel clamps each pin shaft;
When the first swivel rotates along the second circumferential direction of the first swivel relative to the second swivel, the first circumferential direction is opposite to the second circumferential direction, and each opening on the first swivel and each opening on the second swivel are in clearance arrangement with each pin shaft, so that the pin shafts can move along the radial direction and the axial direction of the pin shafts at the limiting openings.
2. The ophthalmic teaching aid of claim 1, wherein the simulated eyeball is resiliently coupled to the pitch support via a resilient member.
3. The ophthalmic teaching aid according to claim 2, wherein the elastic member comprises 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 arranged in each mounting hole, so that the simulated eyeball can move relative to the pitching support.
4. An ophthalmic teaching aid according to claim 3 and characterized in that two sides of the pitching support are respectively provided with a rotating part, the rotating parts are arranged on the slewing support in a transverse rotating mode, two of the plurality of mounting holes are correspondingly formed on the two rotating parts, and respective elastic sleeves on two pin shafts which are coaxially and transversely arranged are correspondingly arranged in the mounting holes of the rotating parts.
5. The ophthalmic teaching aid according to claim 1, wherein each notch of the first swivel and each notch of the second swivel are formed with a locking portion and an unlocking portion, respectively;
When the first swivel rotates relative to the second swivel along the first circumferential direction of the first swivel, the locking part of each opening on the first swivel and the locking part of each opening on the second swivel are oppositely arranged to clamp each pin shaft;
When the first swivel rotates along the second circumferential direction of the first swivel relative to the second swivel, the unlocking part of each opening on the first swivel and the unlocking part of each opening on the second swivel are arranged oppositely, and the unlocking parts of the first swivel and the second swivel are respectively arranged in a clearance with each pin shaft.
6. The ophthalmic teaching aid according to claim 5, wherein 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 rotatable in a first circumferential direction relative to the second swivel when rotated in a first rotational direction; when the deflector rod assembly rotates along the second circumferential direction of the first swivel, the first swivel can rotate along the second circumferential direction of the first swivel relative to the second swivel.
7. The ophthalmic teaching aid of claim 6, wherein the lever assembly comprises a lever and two slide shafts; the two sliding shafts are fixedly arranged on the deflector rod, a first sliding groove extending along the axial direction of the first sliding shaft is formed in the outer peripheral surface of the first rotating ring, a second sliding groove extending along the axial direction of the second sliding shaft is formed in the outer peripheral surface of the second rotating ring, one sliding shaft is slidably arranged in the first sliding groove, and the other sliding shaft is slidably arranged in the second sliding groove.
8. The ophthalmic teaching aid according to any one of claims 1-7, further comprising a frame, wherein the base is disposed on the frame and is capable of adjusting a height up and down.
Priority Applications (1)
| 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 |
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| CN202210520556.8A CN115148077B (en) | 2022-05-13 | 2022-05-13 | Ophthalmic teaching aid |
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| CN115148077A CN115148077A (en) | 2022-10-04 |
| CN115148077B true 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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| CN217718889U (en) * | 2022-05-13 | 2022-11-01 | 苏州君信视达医疗科技有限公司 | Ophthalmological teaching aid |
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| US20160098944A1 (en) * | 2014-10-06 | 2016-04-07 | Universal Vision Biotechnology Co., Ltd. | Eye surgery training simulator |
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| DE202007016408U1 (en) * | 2007-07-11 | 2008-02-14 | Foluck International Co., Ltd., Chung-Li | Bobble device in the eyeball of a puppet |
| WO2019026304A1 (en) * | 2017-07-31 | 2019-02-07 | 国立大学法人名古屋大学 | Ocular surgical training device |
| WO2020157859A1 (en) * | 2019-01-30 | 2020-08-06 | 国立大学法人東海国立大学機構 | Eye surgery practice device |
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| CN115148077A (en) | 2022-10-04 |
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