Lacrimal passage teaching aid

Abstract

The utility model provides a lacrimal passage teaching aid. The lacrimal passage teaching aid comprises a supporting assembly; the bionic eye is installed on the supporting assembly and comprises an eyeball and an eye socket, the eye socket is of an annular structure, and the eyeball is located in the eye socket; the lacrimal passage assembly is connected with the eye sockets; the water tank is installed on the supporting assembly and located below the eye sockets, and the water tank is used for recycling water flowing out of the eye sockets; the water injection assembly comprises a water injection pump, the input end of the water injection pump is connected with a first water pipe, the end, away from the water injection pump, of the first water pipe is connected and communicated with the water tank, the output end of the water injection pump is connected with a second water pipe, a water storage bag is arranged on the second water pipe, and a first adjusting switch and a second adjusting switch are installed on the portions, located on the two sides of the water storage bag, of the second water pipe correspondingly. A first connector is arranged at the tail end of the second water pipe and can be detachably connected with the lacrimal passage assembly. And the water injection pump is electrically connected with the control assembly.

Description

Technical Field

[0001] This utility model relates to the field of teaching aids technology, specifically to a lacrimal duct teaching aid. Background Technology

[0002] Lacrimal duct irrigation is a technique used to diagnose or treat blockages in different parts of the lacrimal duct. During irrigation, medical staff first anesthetize the patient's superior and inferior lacrimal puncta. Then, using a saline syringe with a needle, it is inserted vertically into the inferior lacrimal puncta to a depth of 15 mm, rotated 90° outwards to a horizontal position, and advanced along the lacrimal canaliculus. The patient's head is tilted slightly forward while the saline solution is injected. However, the anatomical structure of the lacrimal duct cannot be directly observed from the face. Clinical medical students, physicians, and nurses learning lacrimal duct irrigation and probing techniques directly on patients, especially probing, carries significant risks. Therefore, theoretical training and practical training with lacrimal duct teaching models are generally required for medical staff.

[0003] Patent No. CN202322485227.7 discloses a comprehensive lacrimal duct teaching aid, including a mounting frame and a simulated lacrimal duct. The mounting frame is equipped with a bionic eye socket, and the simulated lacrimal duct includes an upper lacrimal canaliculus, a lower lacrimal canaliculus, a common lacrimal duct, and a nasolacrimal duct. The mounting frame is provided with a guide slit that extends obliquely downward from the nasolacrimal duct towards the lower part of the bionic eyeball. The nasolacrimal duct is slidably mounted in the guide slit and is also equipped with a fixing component. The upper lacrimal canaliculus, the lower lacrimal canaliculus, and the common lacrimal duct are all equipped with water-stopping clips. A water reservoir is connected to the top of the lacrimal sac, and a water valve is provided at the connection between the water reservoir and the lacrimal sac. The water reservoir is equipped with a water inlet, and a sealing cap is fastened to the bottom of the nasolacrimal duct.

[0004] The aforementioned patents only allow for manual water injection at the lacrimal punctum to simulate lacrimal duct activities, resulting in limited usage and demonstration methods. Therefore, this invention proposes a lacrimal duct teaching aid. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a teaching aid for lacrimal ducts.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A lacrimal duct teaching device includes: a support component; a bionic eye mounted on the support component, the bionic eye including an eyeball and an eye socket, the eye socket having a ring structure, the eyeball located within the eye socket; a lacrimal duct component connected to the eye socket; a water tank mounted on the support component below the eye socket, the water tank being used to collect water flowing out of the eye socket; a water injection component including a water injection pump, the input end of the water injection pump being connected to a water pipe, the end of the water pipe away from the water injection pump being connected and communicating with the water tank, the output end of the water injection pump being connected to a water pipe, the water pipe second having a water reservoir, the water pipe second having an adjustment switch first and an adjustment switch second respectively mounted on both sides of the water reservoir, the end of the water pipe second having a connector first, the connector first being detachably connected to the lacrimal duct component; and a control component, the water injection pump being electrically connected to the control component.

[0008] The support assembly includes: a base, on the top of which a connecting pipe is mounted; and a support plate, on the bottom of which a rotating shaft is fixedly connected, and the support plate is rotatably connected to the connecting pipe via the rotating shaft.

[0009] An annular groove is provided on the side of the eye socket that is connected to the support plate. A drain pipe is connected to the eye socket and is connected to the annular groove. The end of the drain pipe away from the eye socket is connected to the water tank.

[0010] The lacrimal duct assembly includes: a superior lacrimal canaliculus, one end of which passes through the orbit and is connected to a connector two to form a superior lacrimal punctum; a inferior lacrimal canaliculus, one end of which passes through the orbit and is connected to a connector three to form a inferior lacrimal punctum; a common lacrimal duct, the other ends of which are connected to the common lacrimal duct; a lacrimal sac, which is connected to the common lacrimal duct; and a nasolacrimal duct, which is connected to the lacrimal sac.

[0011] An electric regulating valve one is installed on the upper lacrimal canaliculus, an electric regulating valve two is installed on the lower lacrimal canaliculus, and an electric regulating valve three is installed on the main lacrimal tube.

[0012] The end of the nasolacrimal duct furthest from the lacrimal sac is connected to a plug, and an adjustment switch is installed on the nasolacrimal duct.

[0013] The water tank is equipped with a water inlet. After removing the plug, the nasolacrimal duct can be connected to the water inlet.

[0014] A water injection tube is connected to the lacrimal sac, and a connector four is installed at the end of the water injection tube away from the lacrimal sac. An adjustment switch four is installed on the water injection tube.

[0015] The control assembly includes a control box, in which a controller is installed. A touch screen and a control switch are installed on the control box. The touch screen and the control switch are electrically connected to the controller. The water pump, the first electric regulating valve, the second electric regulating valve, and the third electric regulating valve are electrically connected to the controller.

[0016] The beneficial effects of this utility model are:

[0017] This utility model of a tear duct teaching aid can simulate various scenarios. Through the set water injection component, it can perform manual and electric water injection, and has multiple usage modes. Connector one can be connected to connector two, connector three or connector four, and has multiple demonstration modes, which is conducive to the teaching activities. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the tear duct teaching aid according to an embodiment of the present utility model;

[0019] Figure 2 This is a front view of a lacrimal duct teaching aid according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the eye socket structure according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1-Support component; 2-Bionic eye; 3-Eyeball; 4-Eye socket; 5-Lacrimal duct component; 6-Water tank; 7-Water injection component; 8-Water injection pump; 9-Water pipe one; 10-Water pipe two; 11-Water reservoir; 12-Adjustment switch one; 13-Adjustment switch two; 14-Connector one; 15-Base; 16-Support plate; 17-Connecting pipe; 18-Annular groove; 19-Drainage pipe; 20-Upper lacrimal canaliculus; 21-Connector two; 22-Lower lacrimal canaliculus; 23-Connector three; 24-Major lacrimal canaliculus; 25-Lacrimal sac; 26-Noselatalis duct; 27-Electric adjusting valve one; 28-Electric adjusting valve two; 29-Electric adjusting valve three; 30-Plug; 31-Adjustment switch three; 32-Water injection pipe; 33-Connector four; 34-Adjustment switch four; 35-Control box; 36-Water inlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 As shown in the figure, a lacrimal duct teaching method according to an embodiment of the present invention may include a support component, a bionic eye, a lacrimal duct component, a water injection component, and a control component.

[0025] The bionic eye is mounted on the support assembly. The bionic eye includes an eyeball and an eye socket. The eye socket has a ring-shaped structure, and the eyeball is located within the eye socket. The lacrimal duct assembly is connected to the eye socket. A water tank is mounted on the support assembly and located below the eye socket. The water tank is used to collect water flowing out of the eye socket. The water injection assembly includes a water pump. The input end of the water pump is connected to a water pipe. The end of the water pipe away from the water pump is connected to the water tank and is in communication with it. The output end of the water pump is connected to a water pipe. The water pipe has a water reservoir. An adjustment switch and an adjustment switch are respectively installed on both sides of the water pipe on the water pipe. The end of the water pipe has a connector that can be detachably connected to the lacrimal duct assembly. The water pump is electrically connected to the control assembly.

[0026] In this embodiment of the utility model, water pipe one and water pipe two are transparent, and the water storage bag is made of transparent material.

[0027] In one embodiment of this utility model, such as Figure 1 As shown, the support assembly may include a base and a support plate, wherein a connecting pipe is installed on the top of the base; a rotating shaft is fixedly connected to the bottom of the support plate, and the support plate is rotatably connected to the connecting pipe through the rotating shaft.

[0028] The support plate can rotate on the base via a pivot, allowing for multi-angle adjustments for demonstration purposes.

[0029] In one embodiment of this utility model, such as Figure 3 As shown, an annular groove is provided on the side of the eye socket that is connected to the support plate. A drain pipe is connected to the eye socket and is connected to the annular groove. The end of the drain pipe away from the eye socket is connected to the water tank.

[0030] By setting up an annular groove, the water flowing out of the tear duct assembly can fall into the annular groove, which limits the water flow and prevents it from overflowing. The water flowing into the annular groove then flows out through the drain pipe to the water tank for recycling. The water tank is transparent, so the remaining amount of water inside can be observed.

[0031] In one embodiment of this utility model, such as Figure 1 and Figure 2As shown, the lacrimal duct assembly may include an upper lacrimal canaliculus, a lower lacrimal canaliculus, a common lacrimal duct, a lacrimal sac, and a nasolacrimal duct. One end of the upper lacrimal canaliculus passes through the orbit and connects to a second connector, forming an upper lacrimal punctum. One end of the lower lacrimal canaliculus passes through the orbit and connects to a third connector, forming a lower lacrimal punctum. The other ends of both the upper and lower lacrimal canaliculi are connected to the common lacrimal duct. The lacrimal sac is connected to the common lacrimal duct, and the nasolacrimal duct is connected to the lacrimal sac.

[0032] In this embodiment of the invention, the superior lacrimal canaliculus, inferior lacrimal canaliculus, common lacrimal duct, lacrimal sac, and nasolacrimal duct are all made of transparent tubing. Connector one can be threadedly connected to connector two and connector three. Water is injected into the superior or inferior lacrimal canaliculus through a reservoir. A water pump is used to deliver water into the reservoir. During water delivery, regulating switch one is manually opened and regulating switch two is closed. After the reservoir has finished delivering water, regulating switch one can be closed.

[0033] In one embodiment of this utility model, such as Figure 2 As shown, an electric regulating valve one is installed on the upper lacrimal canaliculus, an electric regulating valve two is installed on the lower lacrimal canaliculus, and an electric regulating valve three is installed on the main lacrimal tube.

[0034] In this embodiment of the utility model, the opening and closing of the upper lacrimal duct, the lower lacrimal duct, and the main lacrimal duct are adjusted by the electric regulating valve one, electric regulating valve two, and electric regulating valve three. For example, the electric regulating valve can be an electric ball valve or other valve.

[0035] In one embodiment of this utility model, such as Figure 2 As shown, a plug is connected to the end of the nasolacrimal duct away from the lacrimal sac, and an adjustment switch is installed on the nasolacrimal duct. The water tank has an inlet; by removing the plug, the nasolacrimal duct can be connected to the inlet.

[0036] In this embodiment of the invention, water injection can be performed manually or electrically. For manual injection, the nasolacrimal duct is separated from the inlet and sealed with a corresponding plug. Water is injected by squeezing the reservoir. Unscrewing the plug allows water from the lacrimal duct assembly to be discharged through the nasolacrimal duct into the water tank. A regulating switch (three) prevents water from flowing back into the nasolacrimal duct from the lacrimal sac. For electric injection, the nasolacrimal duct is connected to the inlet, and the injection pump is activated. The injection pump can be a peristaltic pump with adjustable flow rate.

[0037] In one embodiment of this utility model, such as Figure 2 As shown, a water injection tube is connected to the lacrimal sac, and a connector four is installed at the end of the water injection tube away from the lacrimal sac. An adjustment switch four is installed on the water injection tube.

[0038] In this embodiment of the invention, connector one can be threadedly connected to connector four to deliver water into the lacrimal sac. By controlling the corresponding electric regulating valve, the water in the lacrimal sac can be squeezed and the water can flow along the common lacrimal canal, the superior lacrimal canaliculus, and the inferior lacrimal canaliculus.

[0039] In one embodiment of this utility model, such as Figure 2 As shown, the control assembly includes a control box, in which a controller is installed. A touch screen and a control switch are installed on the control box. The touch screen and the control switch are electrically connected to the controller. The water pump, the first electric regulating valve, the second electric regulating valve, and the third electric regulating valve are electrically connected to the controller.

[0040] In a specific embodiment of this utility model, the controller can be a logic controller such as a PLC or a microcontroller to control the opening / closing of the electric regulating valve and the degree of opening / closing.

[0041] This utility model of a lacrimal duct teaching method can simulate various scenarios, as follows:

[0042] (1) No blockage of the lacrimal duct

[0043] Open electric regulating valve one, electric regulating valve two, and electric regulating valve three; close regulating switch four and open regulating switch three; connect connector one to connector two or connector three; squeeze the reservoir to inject water; the water will enter the common lacrimal duct and then enter the nasolacrimal duct from the common lacrimal duct.

[0044] (2) Blockage of the superior lacrimal canaliculus

[0045] Close electric regulating valve one, open electric regulating valve two and electric regulating valve three, and open regulating switch three. Connect connector one to connector two and inject water into the upper lacrimal canaliculus. At this time, the water stays in the upper lacrimal canaliculus and cannot flow into the nasolacrimal duct.

[0046] The principle is the same when the inferior lacrimal canaliculus is blocked, so it will not be repeated here.

[0047] (3) Stenosis of the superior lacrimal canaliculus

[0048] Adjusting the opening and closing degree of the electric regulating valve one simulates the narrowing of the superior lacrimal canaliculus. Opening the electric regulating valve three and the manual regulating switch three, and simultaneously opening the electric regulating valve two, with connector one connected to connector two, will create some resistance when water is injected. The water will slowly enter the nasolacrimal duct, while some water will flow out from the inferior lacrimal punctum of the inferior lacrimal canaliculus.

[0049] The principle is the same when the inferior lacrimal canaliculus, common lacrimal duct, and nasolacrimal duct are narrowed, so it will not be described in detail here. In the simulation of nasolacrimal duct narrowing, the degree of narrowing is adjusted by adjusting the three-stage adjustment mechanism.

[0050] (4) Blockage of the common lacrimal duct

[0051] Close electric regulating valve three, open electric regulating valve two and electric regulating valve one, and connect connector one to connector two. At this time, water cannot enter the nasolacrimal duct, and water will flow out from the lower lacrimal punctum.

[0052] (5) Nasolacrimal duct obstruction

[0053] Close adjustment switch three, open electric adjustment valve one, electric adjustment valve two and electric adjustment valve three, connect connector one and connector two, when injecting water, no water enters the nasolacrimal duct, water flows out from the lower lacrimal punctum.

[0054] In addition, in this embodiment of the utility model, connector one can also be connected to connector four to inject water into the lacrimal sac. By turning off the regulating switch three, the blockage or narrowing of the upper lacrimal canaliculus, the small lacrimal canaliculus, and the common lacrimal duct can be simulated by whether water can flow out from the lower lacrimal punctum and the upper lacrimal punctum, and the speed of the flow.

[0055] In addition, the water stored in the tank can be colored, which makes it easier to observe the water flow in the tear duct.

[0056] The tear duct teaching aid according to the present invention can simulate a variety of scenarios. It can perform manual and electric water injection through the set water injection components, and has multiple usage modes. Connector one can be connected to connector two, connector three or connector four, and has multiple demonstration modes, which is conducive to the teaching activities.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A teaching aid for lacrimal ducts, characterized in that, include: Support components; A bionic eye, which is mounted on the support assembly, includes an eyeball and an eye socket, the eye socket having a ring-shaped structure, and the eyeball located within the eye socket; A lacrimal duct assembly, wherein the lacrimal duct assembly is connected to the eye socket; A water tank, mounted on the support assembly and located below the eye socket, is used to collect water flowing out of the eye socket; The water injection assembly includes a water injection pump. The input end of the water injection pump is connected to a water pipe, and the end of the water pipe away from the water injection pump is connected to and communicates with the water tank. The output end of the water injection pump is connected to a water pipe, and a water storage bladder is provided on the water pipe. An adjustment switch and an adjustment switch are respectively installed on both sides of the water pipe on the water pipe, and a connector is provided at the end of the water pipe. The connector can be detachably connected to the lacrimal duct assembly. The control component is electrically connected to the water injection pump.

2. The lacrimal duct teaching aid according to claim 1, characterized in that, The support components include: A base, the top of which is fitted with a connecting pipe; A support plate, the bottom of which is fixedly connected to a rotating shaft, and the support plate is rotatably connected to the connecting pipe through the rotating shaft.

3. The lacrimal duct teaching aid according to claim 2, characterized in that, An annular groove is provided on the side of the eye socket that is connected to the support plate. A drain pipe is connected to the eye socket and is connected to the annular groove. The end of the drain pipe away from the eye socket is connected to the water tank.

4. The lacrimal duct teaching aid according to claim 3, characterized in that, The lacrimal duct assembly includes: The superior lacrimal canaliculus has one end that passes through the orbit and is connected to a connector two, forming the superior lacrimal punctum; The lower lacrimal canaliculus has one end that passes through the orbit and is connected to a connector head three, forming the lower lacrimal punctum; The common lacrimal duct, and the other ends of the superior lacrimal canaliculus and the inferior lacrimal canaliculus are both connected to the common lacrimal duct; Lacrimal sac, which is connected to the common lacrimal duct; The nasolacrimal duct is connected to the lacrimal sac.

5. The lacrimal duct teaching aid according to claim 4, characterized in that, An electric regulating valve one is installed on the upper lacrimal canaliculus, an electric regulating valve two is installed on the lower lacrimal canaliculus, and an electric regulating valve three is installed on the main lacrimal tube.

6. The lacrimal duct teaching aid according to claim 5, characterized in that, The end of the nasolacrimal duct furthest from the lacrimal sac is connected to a plug, and an adjustment switch is installed on the nasolacrimal duct.

7. The lacrimal duct teaching aid according to claim 6, characterized in that, The water tank is equipped with a water inlet. After removing the plug, the nasolacrimal duct can be connected to the water inlet.

8. The lacrimal duct teaching aid according to claim 7, characterized in that, A water injection tube is connected to the lacrimal sac, and a connector four is installed at the end of the water injection tube away from the lacrimal sac. An adjustment switch four is installed on the water injection tube.

9. The lacrimal duct teaching aid according to claim 8, characterized in that, The control assembly includes a control box, in which a controller is installed. A touch screen and a control switch are installed on the control box. The touch screen and the control switch are electrically connected to the controller. The water pump, the first electric regulating valve, the second electric regulating valve, and the third electric regulating valve are electrically connected to the controller.

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