Lacrimal passage model teaching aid

Abstract

The utility model relates to the technical field of medical teaching instruments, and particularly discloses a lacrimal passage model teaching aid which comprises a base, a rotating seat rotationally arranged at the top end of the base and a light-transmitting plate arranged on one side of the top end of the rotating seat. The lacrimal passage structure is arranged on the outer side of the light-transmitting plate and is used for simulating a lacrimal passage flushing state; the lacrimal passage structure comprises an upper lacrimal ductule, a lower lacrimal ductule arranged on the lower right portion of the upper lacrimal ductule and a nasolacrimal duct arranged on the right portion of the lower lacrimal ductule, and the upper lacrimal ductule, the lower lacrimal ductule and the nasolacrimal duct are communicated with one another. The adjusting structure is arranged on one side of the light-transmitting plate at the top end of the rotating seat, and the adjusting structure is used for extruding the lacrimal passage structure to block fluid passing through the lacrimal passage structure. Through the arrangement of the lacrimal passage structure and the adjusting structure, a teacher can conveniently simulate various states of lacrimal passage flushing so as to improve the learning effect of students; and through the arranged clamping structure, manpower can be saved, and the teaching aid can be better operated in teaching.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical teaching instrument technical field, concretely is a lacrimal passage model teaching aid. BACKGROUND

[0002] With the progress of the times, technology is developing, medical teaching also gradually develops along with the maturity of medical technology, in order to show the subtle details inside the human body to students, often the internal structure is made into a model, then when showing, can let the student more conveniently understand learning, the structure of the eye is relatively complex, and the lacrimal passage of tears is relatively thin, and it is not easy to show during teaching, so when making a model, the main pipeline is often simplified and enlarged, so that students can more clearly observe the flow of the liquid inside the lacrimal passage during the process, so that students can better understand and learn, and can personally experience the lacrimal passage flushing, therefore, it is particularly important to propose a lacrimal passage model teaching aid. UTILITY MODEL CONTENT

[0003] The utility model is to provide a kind of lacrimal passage model teaching aid, to solve the problem proposed in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of lacrimal passage model teaching aid, comprising: base, rotationally arranged in the top end of base rotating seat and the light transmission plate of being set to one side of rotating seat top end;

[0005] Lacrimal passage structure, the lacrimal passage structure is arranged outside the light transmission plate, for simulating lacrimal passage flushing state;

[0006] Adjusting structure, the adjusting structure is arranged at the one side of light transmission plate in the top end of rotating seat, and the adjusting structure is used to extrude lacrimal passage structure to hinder the fluid passing through its inside;

[0007] Clamping structure, the clamping structure is arranged at one side of rotating seat, light transmission plate and adjusting structure, and the clamping structure is used to support injection appliance.

[0008] Preferably, the lacrimal passage structure includes the upper lacrimal canaliculus, the lower lacrimal canaliculus arranged below the right of the upper lacrimal canaliculus and the nasolacrimal duct arranged to the right of the lower lacrimal canaliculus, wherein the upper lacrimal canaliculus, the lower lacrimal canaliculus and the nasolacrimal duct are communicated with each other.

[0009] Preferably, the adjusting structure includes the first gas pipe arranged in the lower lacrimal canaliculus, the second inflatable air bag and the third inflatable air bag arranged at both ends of the nasolacrimal duct, the conveying device arranged at the top end of the rotating seat, the first gas pipe arranged between the conveying device and the second inflatable air bag, the second gas pipe arranged between the conveying device and the first inflatable air bag, and the third gas pipe arranged between the conveying device and the third inflatable air bag.

[0010] Preferably, the nasolacrimal duct is internally provided with a liquid infusion capsule, and externally provided with a liquid infusion tube in communication with the liquid infusion capsule, wherein the first gas infusion tube, the second gas infusion tube, the liquid infusion tube and the third gas infusion tube are sequentially arranged from top to bottom.

[0011] Preferably, the rotating top is provided with a water collecting structure, which comprises a positioning clamping block fixed to the rotating top, a water tank clamped to the top of the positioning clamping block, air holes opened on both sides of the top of the water tank, and a three-way hose arranged between the water tank and the superior lacrimal canal and the nasolacrimal duct, wherein the positioning clamping block is internally provided with a magnet, the bottom end of the water tank is provided with a suction piece, and the water tank is adsorbed to the top of the positioning clamping block.

[0012] Preferably, the clamping structure comprises a front clamping fixed to the front side of the rotating top, a side clamping fixed to the outer side of the conveying device, and a supporting clamp fixed to the front side of the light transmission plate, and the clamping plates of the front clamping and the side clamping can adjust the clamping angle.

[0013] Preferably, the rear side of the light transmission plate is provided with a light supplementing structure, which comprises a background plate mounted to the rear side of the light transmission plate, a light emitting plate mounted to the rear side of the background plate, and an internal battery mounted to the inside of the rotating top.

[0014] The utility model at least has the following beneficial effects:

[0015] 1、Through setting up the lacrimal passage structure and the adjusting structure, the teacher can carry out lacrimal passage flushing simulation teaching, and through setting up the first inflatable air bag, the second inflatable air bag and the third inflatable air bag, the inferior lacrimal canal and the nasolacrimal duct are extruded, the internal blocked state of the inferior lacrimal canal and the nasolacrimal duct is simulated, thereby the teaching effect can be improved.

[0016] 2、Through setting up the clamping structure, the supporting clamp stably supports the lacrimal passage structure outside the light transmission plate, the front clamping and the side clamping can lift the input pipe connected with the inferior lacrimal canal and the liquid infusion capsule, the manpower is saved, and after completing the test, the lacrimal passage structure can be taken out as a whole and cleaned, which is very convenient.

[0017] 3、Through setting up the water collecting structure, the positioning clamping block, the water tank and the air hole collect water during the demonstration process, avoid water flowing to the display platform during the demonstration process, so that the display platform does not need to be cleaned at all times during the teaching process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure diagram of the utility model;

[0019] Figure 2 It is a front view sectional view of the utility model;

[0020] Figure 3 It is a water collecting structure sectional view enlarged view of the utility model;

[0021] Figure 4 It is tear duct structure display drawing of the utility model;

[0022] Figure 5 It is clamping structure display drawing of the utility model.

[0023] In the drawing: 1, base; 2, rotating seat; 3, water collecting structure; 301, positioning block; 302, water tank; 303, air hole; 4, clamping structure; 401, front clamping; 402, side clamping; 403, support clamp; 5, light transmission plate; 6, three-way hose; 7, light supplementing structure; 701, background plate; 702, light emitting plate; 703, built-in battery; 8, tear duct structure; 801, upper lacrimal canaliculus; 802, lower lacrimal canaliculus; 803, nasolacrimal duct; 9, adjusting structure; 901, conveying device; 902, first gas conveying pipe; 903, second gas conveying pipe; 904, liquid conveying pipe; 905, third gas conveying pipe; 906, first inflatable air bag; 907, second inflatable air bag; 908, third inflatable air bag; 909, liquid conveying bag. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0026] Embodiment one,

[0027] A kind of tear duct model teaching aid, including: base 1, rotating seat 2 being rotationally arranged at the top of base 1 and the light transmission plate 5 being arranged at the top of one side of rotating seat 2, tear duct structure 8 is arranged outside light transmission plate 5, for simulating tear duct flushing state, adjusting structure 9 is arranged at the top of light transmission plate 5 in one side of rotating seat 2, adjusting structure 9 is used to extrude tear duct structure 8 to hinder the fluid passing through its inside.

[0028] The tear duct structure 8 comprises an upper lacrimal canal 801, a lower lacrimal canal 802 arranged below the right side of the upper lacrimal canal 801, and a nasolacrimal duct 803 arranged at the right side of the lower lacrimal canal 802, wherein the upper lacrimal canal 801, the lower lacrimal canal 802 and the nasolacrimal duct 803 are in communication with each other, and the adjusting structure 9 comprises a first gas pipe 902 arranged in the lower lacrimal canal 802, a second inflatable air bag 907 and a third inflatable air bag 908 arranged at both ends of the nasolacrimal duct 803, a delivery device 901 arranged at the top end of the rotating seat 2, the first gas pipe 902 arranged between the delivery device 901 and the second inflatable air bag 907, a second gas pipe 903 arranged between the delivery device 901 and the first inflatable air bag 906, and a third gas pipe 905 arranged between the delivery device 901 and the third inflatable air bag 908.

[0029] In addition, the nasolacrimal duct 803 is internally provided with a liquid injection bag 909, and the outside of the nasolacrimal duct 803 is provided with a liquid injection pipe 904 in communication with the liquid injection bag 909.

[0030] In the teaching of the lacrimal duct flushing, the following situations can be simulated. Situation one: the first inflatable air bag 906, the second inflatable air bag 907 and the third inflatable air bag 908 are inflated, and the lower lacrimal canal 802 and the nasolacrimal duct 803 are kept unobstructed, at this time, the flushing has no pressure, and the liquid flows smoothly into the nasal cavity or the pharynx, which can simulate the unobstructed state of the lacrimal duct; situation two: the first inflatable air bag 906 is inflated, so that the flushing liquid returns from the injection position of the lower lacrimal canal 802, which simulates the state of the lower lacrimal canal 802 being blocked; situation three: the second inflatable air bag 907 and the third inflatable air bag 908 are inflated, and the liquid is injected from the lower lacrimal canal 802, at this time, the liquid flows back from the upper lacrimal canal 801, which can simulate the state of the common lacrimal duct being blocked and the nasolacrimal duct 803 being blocked; situation four: the third inflatable air bag 908 is inflated, and the liquid is injected from the lower lacrimal canal 802, at this time, the flushing has resistance, and part of the flushing liquid flows into the nasal cavity, and part of the flushing liquid flows back, which can simulate the state of the nasolacrimal duct 803 being narrow; situation five: the liquid injection bag 909 is injected with viscous objects simulating secretions by the liquid injection pipe 904, and then the liquid is injected from the lower lacrimal canal 802, at this time, the liquid flows back from the upper lacrimal canal 801 while carrying the injected viscous objects, which can simulate the state of chronic dacryocystitis.

[0031] The first inflatable air bag 906, the second inflatable air bag 907 and the third inflatable air bag 908 adjust the internal obstruction state of the lower lacrimal canal 802 and the nasolacrimal duct 803, the liquid injection pipe 904 injects simulated mucous and purulent secretions into the nasolacrimal duct 803 through the liquid injection bag 909, and the delivery device 901 is responsible for inflating the first gas pipe 902, the second gas pipe 903 and the third gas pipe 905, so that the model is convenient to adjust and simulate different lacrimal duct conditions when it is displayed.

[0032] According to the above embodiment, embodiment two,

[0033] It should be noted that the clamping structure 4 is arranged on one side of the rotating seat 2, the light-transmitting plate 5 and the adjusting structure 9, the clamping structure 4 is used for supporting the injection device, the clamping structure 4 comprises a front clamping plate 401 fixed to the front side of the rotating seat 2, a side clamping plate 402 fixed to the outer side of the conveying device 901 and a supporting clamping plate 403 fixed to the front side of the light-transmitting plate 5, and the clamping plates of the front clamping plate 401 and the side clamping plate 402 can adjust the clamping angle.

[0034] In addition, in order to facilitate the teacher and the student to clearly see the model simulation situation, the light supplementing structure 7 can be arranged on the rear side of the light-transmitting plate 5, the light supplementing structure 7 comprises a background plate 701 arranged on the rear side of the light-transmitting plate 5, a light-emitting plate 702 arranged on the rear side of the background plate 701 and a built-in battery 703 arranged in the rotating seat 2.

[0035] The supporting clamping plate 403 is provided with three groups, and the upper lacrimal canaliculus 801, the lower lacrimal canaliculus 802 and the nasolacrimal duct 803 are clamped on the outer side of the light-transmitting plate 5, the front clamping plate 401 and the side clamping plate 402 can lift the input pipe connected with the lower lacrimal canaliculus 802 and the infusion bag 909, so that the manpower is saved, and after the experiment is completed, the tear duct structure 8 can be taken out as a whole for cleaning, in the case that the light is insufficient, the light-emitting plate 702 can be adjusted to supplement the light behind the light-transmitting plate 5, which is very convenient.

[0036] According to the above embodiment, the third embodiment,

[0037] It should be noted that the rotating seat 2 is provided with the water collecting structure 3, the water collecting structure 3 comprises a positioning clamping block 301 fixed to the top end of the rotating seat 2, a water tank 302 clamped to the top end of the positioning clamping block 301, air holes 303 opened on both sides of the top end of the water tank 302 and a three-way hose 6 arranged between the water tank 302 and the upper lacrimal canaliculus 801 and the nasolacrimal duct 803.

[0038] The positioning clamping block 301 is internally provided with a magnet, the bottom end of the water tank 302 is provided with a suction piece, and the water tank 302 is adsorbed to the top of the positioning clamping block 301.

[0039] When water injection demonstration is performed in the tear duct structure 8, the excess water can flow back to the water tank 303 through the three-way hose 6, so that the water can be collected during the demonstration process, and the water can be prevented from flowing to the display platform during the demonstration process, when the water tank 302 is full, the water tank 302 only needs to be taken out from the positioning clamping block 301, poured and then put back, so that the display platform does not need to be cleaned at all times during the teaching process.

[0040] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A lacrimal passage model teaching aid, comprising: a base (1), a rotating seat (2) rotatably arranged at the top end of the base (1), and a light-transmitting plate (5) arranged at one side of the top end of the rotating seat (2); characterized in that: a lacrimal passage structure (8) is arranged outside the light-transmitting plate (5) and is used to simulate the state of lacrimal passage flushing; an adjusting structure (9) is arranged at one side of the light-transmitting plate (5) at the top end of the rotating seat (2), and the adjusting structure (9) is used to press the lacrimal passage structure (8) to hinder the fluid passing through the inside thereof; a clamping structure (4) is arranged at one side of the rotating seat (2), the light-transmitting plate (5), and the adjusting structure (9), and the clamping structure (4) is used to support the injection device.

2. The lacrimal model teaching aid of claim 1, wherein: The lacrimal passage structure (8) comprises an upper lacrimal canal (801), a lower lacrimal canal (802) arranged below the right side of the upper lacrimal canal (801), and a nasolacrimal duct (803) arranged at the right side of the lower lacrimal canal (802), wherein the upper lacrimal canal (801), the lower lacrimal canal (802), and the nasolacrimal duct (803) are in communication with each other.

3. A lacrimal model teaching aid according to claim 2, wherein: The adjusting structure (9) comprises a first gas tube (902) arranged inside the lower lacrimal canal (802), a second inflatable air bag (907) and a third inflatable air bag (908) arranged at both ends of the nasolacrimal duct (803), a delivery device (901) arranged at the top end of the rotating seat (2), a first gas tube (902) arranged between the delivery device (901) and the second inflatable air bag (907), a second gas tube (903) arranged between the delivery device (901) and the first inflatable air bag (906), and a third gas tube (905) arranged between the delivery device (901) and the third inflatable air bag (908).

4. The lacrimal model teaching aid of claim 3, wherein: The nasolacrimal duct (803) is provided with a liquid infusion bag (909) inside, and the outside of the nasolacrimal duct (803) is provided with a liquid infusion tube (904) in communication with the liquid infusion bag (909).

5. The lacrimal model teaching aid of claim 1, wherein: The top end of the rotating seat (2) is provided with a water collecting structure (3), which comprises a positioning clamping block (301) fixed to the top end of the rotating seat (2), a water tank (302) clamped to the top end of the positioning clamping block (301), air holes (303) opened at both sides of the top end of the water tank (302), and a three-way hose (6) arranged between the water tank (302) and the upper lacrimal canal (801) and the nasolacrimal duct (803), wherein the inside of the positioning clamping block (301) is provided with a magnet, the bottom end of the water tank (302) is provided with a suction piece, and the water tank (302) is adsorbed to the top of the positioning clamping block (301).

6. The lacrimal model teaching aid of claim 1, wherein: The clamping structure (4) comprises a front clamping (401) fixed to the front side of the rotating seat (2), a side clamping (402) fixed to the outside of the delivery device (901), and a support clamp (403) fixed to the front side of the light-transmitting plate (5), and the clamping plates of the front clamping (401) and the side clamping (402) can adjust the clamping angle.

7. The lacrimal model teaching aid of claim 1, wherein: The rear side of the light-transmitting plate (5) is provided with a light supplementing structure (7), the light supplementing structure (7) comprises a background plate (701) mounted on the rear side of the light-transmitting plate (5), a light-emitting plate (702) mounted on the rear side of the background plate (701) and a built-in battery (703) mounted in the inside of the transfer seat (2).

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