An ophthalmic subretinal hemorrhage burst principle teaching mold and a method of using the same

Abstract

The application discloses an ophthalmic choroid burst hemorrhage principle teaching mold, a plurality of water injection holes are arranged on the upper portion of the mold on the choroid, a plurality of water injection pipes are arranged correspondingly to the water injection holes, the water outlets of the water injection pipes are communicated to the choroid and the retina through the water injection holes, the water inlets are gathered in the sclera external port for connecting with a syringe, so that the syringe is used to inject or suck out liquid, and choroid burst hemorrhage is simulated. The application also provides a use method of the mold. The ophthalmic choroid burst hemorrhage principle teaching mold and the use method thereof can simulate choroid burst hemorrhage caused by eye injury, intraocular surgery and the like, have strong simulation, can realize on-site operation, have strong intuitiveness, good visual communication effect, are easy to understand, are convenient to carry, are easy to use, and greatly improve the teaching effect.

Description

Technical Field

[0001] This application relates to the field of medical model technology, and in particular to a teaching model for the principle of ophthalmic choroidal burst hemorrhage and its usage method. Background Technology

[0002] Currently, there is no commercially available simulation model that can demonstrate the principle of choroidal fulminant hemorrhage on-site. Since the recipients are not ophthalmologists, they lack understanding of the eye's structure and function. When medical personnel explain the principle of choroidal fulminant hemorrhage, relying solely on pictures or verbal descriptions makes it difficult for patients to understand, leading to communication barriers in preoperative instruction and the potential for postoperative disputes. Furthermore, during clinical internships, ophthalmology students often have only a superficial understanding of ocular anatomy, and instructors' reliance on pictures or verbal descriptions fails to provide sufficient comprehension, resulting in ineffective teaching. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention aims to provide an ophthalmic choroidal fulminant hemorrhage principle teaching model and its usage method that is highly intuitive, has excellent visual communication effects, is easy to understand, portable, and simple to use.

[0004] The technical solution provided by this invention is as follows:

[0005] An ophthalmic choroidal hemorrhage demonstration model is provided. The model has multiple water injection holes on the choroid, and multiple water injection tubes are set corresponding to each water injection hole. The water outlet of each water injection tube passes through the water injection hole and connects to the space between the choroid and the retina. The water inlet is clustered in the scleral inlet for connection to a syringe, so as to inject or aspirate liquid through the syringe to simulate choroidal hemorrhage.

[0006] Preferably, the range of the plurality of water injection holes is based on the sagittal plane of the eyeball, extending anteriorly to the serrated edge and posteriorly to the optic disc.

[0007] Preferably, the external port is provided with a sealing cap, which is a spiral buckle to facilitate connection to the syringe spiral nipple.

[0008] Preferably, the outer part of the mold is made of transparent material, the inner part of the lens, suspensory ligament and retina is made of light yellow rubber material, the vitreous body is made of durable light yellow high elastic material, and the iris, ciliary body and choroid are made of red rubber material.

[0009] Preferably, the sclera is made of white rubber.

[0010] Preferably, a storage rack for storing the mold is provided below the mold.

[0011] A method for using a teaching model of the principle of burst hemorrhage of the choroid in ophthalmology, wherein the model is as described above, the method includes: injecting liquid through an external port using a syringe to separate the water between the choroid and the retina, and under the gravity and propulsion of the liquid, the vitreous body moves forward, and at the same time the lens and iris move forward, resulting in narrowing of the anterior chamber angle, obstruction of aqueous humor outflow, and increase in intraocular pressure, thereby simulating burst hemorrhage of the choroid.

[0012] Preferably, the procedure further includes: drawing out the injected liquid from the external port using a syringe, causing the choroid and retina to reattach, and the vitreous body, lens, and iris to subsequently move back to their original positions, widening the iridocorneal angle, allowing normal outflow of aqueous humor, and normalizing intraocular pressure.

[0013] Compared with existing technologies, the ophthalmic choroidal burst hemorrhage demonstration mold and its usage method of this invention can effectively simulate burst hemorrhage of the choroid caused by ocular trauma, intraocular surgery, etc. It has strong simulation, can be carried out on-site, is highly intuitive, has good visual communication effect, is easy to understand, and is portable and simple to use, which greatly improves the teaching effect. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the ophthalmic choroidal fulminant hemorrhage demonstration mold according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the mold before or after water injection;

[0017] Figure 3 for Figure 1 The diagram shows the structure of the mold after water injection. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0022] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0023] like Figures 1 to 3 As shown, this embodiment of the invention provides an ophthalmic choroidal hemorrhage demonstration mold, which is designed to simulate the structure of a normal eye and the intraocular structure after choroidal hemorrhage. The sagittal plane structure of the eye is made of special materials and dyes to simulate the mechanism of choroidal hemorrhage, resulting in a high degree of realism. In this embodiment, a storage rack 200 is provided below the mold 100, and the mold 100 can be placed on the storage rack 200 when not in use.

[0024] In this embodiment, the sagittal plane structure of the eye in the mold includes: cornea 1, iris 2, ciliary body 3, lens 4, suspensory ligaments 5, vitreous body 6, retina 7, choroid 8, ora serrata 9, optic disc 10, and sclera 11. The outer periphery is made of transparent material, while the inner structures—the lens, suspensory ligaments, and retina—are made of light yellow rubber. The vitreous body is made of durable, light yellow, highly elastic material. The iris, ciliary body, and choroid are made of red rubber, and the sclera is made of white rubber.

[0025] In this embodiment, multiple water injection holes 12 are provided on the choroid above the mold (corresponding to the upper temporal region of the right eyeball) (to simulate choroidal vessel rupture by injecting water through these holes). The range of the water injection holes 12 is based on the sagittal plane of the eyeball as the observation plane, extending anteriorly to the serrated edge 9 and posteriorly to the optic disc 10. Multiple water injection tubes 13 are provided corresponding to each water injection hole 12 (e.g., ...). Figure 2 (For clarity, only some of the water injection pipes are shown; the others are omitted.) The outlets of each water injection pipe 13 pass through the respective injection holes and connect to the space between the choroid 8 and the retina 7. The inlets are clustered within the scleral external port 14 for connection to a syringe, allowing liquid to be injected or aspirated through the syringe to simulate explosive hemorrhage of the choroid. The water injection pipes 13 can be made of PVC.

[0026] In this embodiment, the external port 14 is provided with a sealing cap 15, which uses a screw thread to facilitate connection to the syringe's spiral nipple. The sealing cap 15 may be made of rubber.

[0027] This embodiment also provides a method for using the above-mentioned mold, including: injecting liquid through an external port using a syringe to separate the water between the choroid and the retina; under the gravity and propulsion of the liquid, the vitreous body moves forward, and simultaneously the lens and iris move forward, causing the anterior chamber angle to narrow, the outflow of aqueous humor to be obstructed, and the intraocular pressure to increase, simulating a burst hemorrhage of the choroid; then, the injected liquid is aspirated through the external port using a syringe, the choroid and retina re-adhere, and the vitreous body, lens, and iris move backward and return to their original positions, the anterior chamber angle widens, the outflow of aqueous humor returns to normal, and the intraocular pressure returns to normal. Of course, during the demonstration, liquid can also be injected or aspirated using a syringe as needed.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A teaching model for the principle of explosive choroidal hemorrhage in ophthalmology, characterized in that, The mold has multiple water injection holes on the choroid, and multiple water injection tubes are set corresponding to each water injection hole. The outlet of each water injection tube passes through the water injection hole and connects to the space between the choroid and the retina. The inlet is clustered in the scleral inlet for connection to a syringe, so that liquid can be injected or aspirated by the syringe to simulate explosive hemorrhage of the choroid. The range of the multiple water injection holes is set with the sagittal plane of the eyeball as the observation plane, ending anteriorly at the ora serrata and posteriorly at the optic disc.

2. The mold as described in claim 1, characterized in that, The external port is equipped with a sealing cap, which uses a screw thread to facilitate connection to the syringe screw tip.

3. The mold as described in claim 1, characterized in that, The outer part of the mold is made of transparent material, while the inner parts, including the lens, suspensory ligament, and retina, are made of light yellow rubber. The vitreous body is made of durable light yellow high-elastic material, and the iris, ciliary body, and choroid are made of red rubber.

4. The mold as described in claim 1, characterized in that, The sclera is made of white rubber.

5. The mold as described in claim 1, characterized in that, The mold is provided with a storage rack underneath for storing the mold.

6. A method for using a teaching model illustrating the principle of choroidal fulminant hemorrhage in ophthalmology, characterized in that, The mold is the mold as described in any one of claims 1 to 5, and the method includes: injecting liquid through an external port using a syringe to separate the water between the choroid and the retina, causing the vitreous body to move forward under the gravity and propulsion of the liquid, while the lens and iris move forward as well, resulting in narrowing of the iridocorneal angle, obstruction of aqueous humor outflow, and increased intraocular pressure, simulating burst hemorrhage of the choroid.

7. The method of use as described in claim 6, characterized in that, Also includes: The injected liquid is aspirated through the external port using a syringe, allowing the choroid and retina to reattach. The vitreous body, lens, and iris then shift back to their original positions, widening the iridocorneal angle, normalizing aqueous humor outflow, and normalizing intraocular pressure.

Images