Simulation training device for peripheral vitrectomy by sclera jacking method

Abstract

The invention provides a sclera jacking method peripheral vitrectomy simulation training device, and relates to the technical field of operation training instruments. Comprising a face model, simulated eyeballs and a negative pressure vitreous head simulation device, the face model is provided with eye sockets, and the simulated eyeballs are embedded into the eye sockets; a simulated residual vitreous body and a simulated retina anterior proliferation membrane are arranged in the simulated eyeball and are located at the position, 2 mm in front of and behind the simulated sclera puncture channel, of the inner wall of the simulated eyeball; the simulated eyeballs can be divided into different subtypes provided with one or two of simulated residual vitreous bodies and simulated retina anterior proliferation membranes; the negative pressure glass cutting head simulation device comprises a simulation glass cutting head and a negative pressure suction tube communicated with the simulation glass cutting head. According to the invention, conditions encountered in an actual operation can be highly simulated, and the purpose of accurate training is achieved; in combination with teaching videos, a fundus surgical doctor can quickly improve the surgical skill of peripheral vitreotomy by a sclera jacking method, the surgical success rate of complex vitreoretinopathy is improved, and people are benefited.

Description

Technical Field

[0001] The invention relates to the technical field of surgical training instruments, and in particular to a scleral apex pressure method peripheral vitrectomy simulation trainer. Background Art

[0002] Vitrectomy is required for many vitreoretinal diseases, such as retinal detachment, which includes core vitrectomy and peripheral vitrectomy. Among them, peripheral vitrectomy is the difficulty of the operation and the key to determining the success rate of the operation. Because in vitreoretinal diseases, if the peripheral vitreous or peripheral preretinal proliferative membrane is not treated thoroughly, it will cause proliferative vitreoretinopathy, leading to recurrent retinal detachment and many other related complications, requiring multiple surgeries to compensate, causing irreversible visual function damage, and even blindness and eye atrophy. Cutting the peripheral vitreous as cleanly as possible and removing the peripheral preretinal proliferative membrane are crucial to the success rate of the operation.

[0003] At present, the "scleral pressure method for peripheral vitrectomy" is widely recognized in the field of fundus surgery. This technique requires the surgeon to press the sclera with one hand under the illumination of a microscope, and to hold a vitrectomy head or other instruments with the other hand to perform micromanipulation on the peripheral vitreous and preretinal proliferative membrane. It does not require the assistance of an assistant, which is more convenient, safe and efficient. However, the "scleral pressure method for peripheral vitrectomy" has high requirements for the coordination, stability and operation skills of both hands. Therefore, the surgical learning curve is long, and there is currently no ideal instrument on the market that can train this surgical technique. Animal eyes are not ideal training models either, because the refractive medium of animal eyes quickly becomes turbid after being removed from the body, and intraocular surgery training cannot be performed. At the same time, there are many uncontrollable factors in animal eyes, which leads to strong limitations in the training of this surgical technique. Therefore, this professional field urgently needs a real and convenient surgical training mold to help doctors in this profession improve the operation skills of this technology and benefit a large number of patients. Summary of the invention

[0004] The purpose of the present invention is to provide a scleral top pressure method peripheral vitrectomy simulation trainer, which can simulate the inside of the eyeball to a high degree the conditions encountered in actual surgery, thereby achieving the purpose of precise training; combined with teaching videos, vitreoretinal surgeons can quickly improve their surgical skills, increase the success rate of surgery, and benefit the people.

[0005] The technical solution adopted by the present invention is:

[0006] An embodiment of the present application provides a scleral top pressure method peripheral vitrectomy simulation trainer, comprising a face model, a simulated eyeball and a negative pressure vitrectomy head simulation device, wherein the face model is provided with an eye socket, and the simulated eyeball is embedded in the eye socket; the simulated eyeball is provided with one or two of simulated residual vitreous and simulated preretinal proliferative membrane; the negative pressure vitrectomy head simulation device comprises an internally hollow simulated vitrectomy head and a negative pressure suction tube connected to the simulated vitrectomy head.

[0007] Furthermore, in some embodiments of the present invention, the simulated vitrectomy head is provided with a handle.

[0008] Furthermore, in some embodiments of the present invention, a transparent portion is provided on the upward side of the simulated eyeball.

[0009] Furthermore, in some embodiments of the present invention, a simulated scleral puncture channel is provided on the side wall of the simulated eyeball, and the simulated scleral puncture channel is connected to the inside of the simulated eyeball. Through the simulated scleral puncture channel, the head of the simulated vitrectomy head can reach the simulated residual vitreous body part; the corresponding model of ophthalmic internal limiting membrane forceps can reach the simulated preretinal proliferative membrane.

[0010] Furthermore, in some embodiments of the present invention, the number of simulated sclera puncture channels is two.

[0011] Furthermore, in some embodiments of the present invention, the simulated eyeball is made of silicone, and the simulated eyeball is interference fit with the facial model.

[0012] Furthermore, in some embodiments of the present invention, a negative pressure device is provided at one end of the negative pressure suction tube away from the simulated vitrectomy head.

[0013] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0014] The embodiment of the present invention provides a scleral top pressure method peripheral vitrectomy simulation trainer, including a face model, a simulated eyeball and a negative pressure vitrectomy head simulation device. The face model is provided with an eye socket, and the simulated eyeball is embedded in the eye socket; the simulated eyeball is provided with one or two of simulated residual vitreous and simulated preretinal proliferative membrane; the negative pressure vitrectomy head simulation device includes a simulated vitrectomy head with a hollow interior and a negative pressure suction tube connected to the simulated vitrectomy head. The simulated eyeball highly simulates the situation encountered in actual surgery to achieve the purpose of precise training; combined with teaching videos, vitreoretinal surgeons can quickly improve their surgical skills and increase the success rate of surgery, benefiting the people.

[0015] The scleral top pressure method peripheral vitrectomy simulation trainer provided in the present application fills the technical gap in surgical training molds in this field, and it is more convenient, realistic and easy to operate for doctors in this field to perform simulation training through the simulation trainer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A front view of a simulation training device provided by an embodiment of the present invention;

[0018] Figure 2 A cross-sectional view of a simulated eyeball provided by an embodiment of the present invention Figure 1 ;

[0019] Figure 3 A cross-sectional view of a simulated eyeball provided by an embodiment of the present invention Figure 2 ;

[0020] Figure 4 A front view of a simulated eyeball provided in an embodiment of the present invention.

[0021] Icons: 1-face model; 2-simulated eyeball; 3-simulated residual vitreous; 4-simulated epiretinal proliferative membrane; 5-simulated vitrectomy head; 6-negative pressure suction tube; 7-handle; 8-transparent part; 9-simulated scleral puncture channel; 10-negative pressure equipment; 11-simulated pupil edge; 12-simulated corneal edge. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc., if used, are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the use of terms such as "horizontal" and "vertical" does not mean that the components must be absolutely horizontal or vertical, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example

[0029] Please refer to Figure 1-Figure 4 The present embodiment provides a scleral pressure method peripheral vitrectomy simulation trainer, comprising a face model 1, a simulated eyeball 2 and a negative pressure vitrectomy head simulation device, the face model 1 is provided with an eye socket, and the simulated eyeball 2 is embedded in the eye socket; the face model 1 of the present embodiment is used to wrap the simulated eyeball 2, the simulated eyeball 2 is made of silicone, and the simulated eyeball 2 is interference fit with the face model 1. In this way, the simulated eyeball 2 is not completely fixed on the face model 1, and the simulated eyeball 2 has a certain activity space under the action of external force. The simulated eyeball 2 can rotate freely through the external force of pressure. It reflects that the simulated eyeball 2 and the face model 1 are elastically connected, that is, there is a fixing effect and a certain elastic rotation space, that is, the conjunctival sac of the real eye is simulated, so that when the simulated eyeball 2 is pressed, the eye position can be rotated accordingly.

[0030] One or both of the simulated residual vitreous body 3 and the simulated preretinal proliferative membrane 4 are provided in the simulated eyeball 2. The simulated residual vitreous body 3 and the simulated preretinal proliferative membrane 4 are located on the inner wall of the simulated eyeball 2 mm before and after the simulated scleral puncture channel 9. The simulated residual vitreous body 3 can be made of jelly, and the simulated preretinal proliferative membrane 4 can be made of paper and stuck to the inner wall of the simulated eyeball 2. The simulated residual vitreous body 3 and the simulated preretinal proliferative membrane 4 of this embodiment are located on the inner wall of the simulated eyeball 2 at a distance of 5 mm to 8 mm from the corneal limbus.

[0031] The negative pressure vitreous cutting head simulation device includes a simulated vitreous cutting head 5 with a hollow interior and a negative pressure suction tube 6 connected to the simulated vitreous cutting head 5. A negative pressure device 10 is provided at one end of the negative pressure suction tube 6 away from the simulated vitreous cutting head 5. The negative pressure device 10 can adopt a device that can generate negative pressure, such as a vacuum pump. Negative pressure is generated inside the simulated vitreous cutting head 5 through the negative pressure device 10. After the simulated vitreous cutting head generates suction, the jelly-like vitreous body inside the eyeball can be sucked out.

[0032] The simulated vitreous cutting head 5 is provided with a handle 7, and the handle 7 is provided to facilitate the medical staff to hold the handle 7 to operate the simulated vitreous cutting head 5. A transparent part 8 is provided on the upward side of the simulated eyeball 2, and the transparent part 8 is used to simulate the cornea and the simulated pupil. The simulated cornea can be made of transparent plastic, and the transparent plastic has a high hardness, which can prevent the simulated cornea from deforming when the eyeball is compressed and deformed, thereby affecting the visual quality. A simulated iris is provided inside the transparent part 8 to achieve the simulated pupil. In actual use, the transparent part 8 is convenient for medical staff to observe the simulated residual vitreous 3 and the simulated preretinal proliferative membrane 4 inside the simulated eyeball 2 through the transparent part 8 during operation.

[0033] In some embodiments of the present invention, the side wall of the simulated eyeball 2 is provided with a simulated scleral puncture channel 9, such as Figure 4 As shown, the middle of the simulated eyeball 2 is a simulated pupil margin 11, and the outer periphery of the simulated pupil margin 11 is a simulated corneal margin 12, wherein the simulated scleral puncture channel 9 of this embodiment is located outside the simulated corneal margin 12 and at a distance of 4mm. The simulated scleral puncture channel 9 is connected to the inside of the simulated eyeball 2, through which the head of the simulated vitrectomy head 5 can reach the part of the simulated residual vitreous body 3; the corresponding type of ophthalmic internal limiting membrane forceps can reach the simulated preretinal proliferative membrane 4. The aperture of the simulated scleral puncture channel 9 is 23G (23G is equivalent to a diameter of 0.6mm), and the number of simulated scleral puncture channels 9 is two, and the angle between the two simulated scleral puncture channels 9 is about 160 degrees, which is used to enter and exit the simulated vitrectomy head and surgical instruments.

[0034] During actual use, the simulated eyeball 2 is placed in the eye socket of the face model 1. After each use, the simulated eyeball 2 needs to be taken out and replaced, while the face model 1 does not need to be replaced. Medical staff cooperate with nail forceps (a conventional ophthalmic surgical instrument) to press the simulated eyeball 2 to rotate it to different angles. The user uses the simulated vitrectomy head 5 to insert it into the simulated eyeball 2 through the simulated scleral puncture channel 9, and the head reaches the surface of the simulated residual vitreous 3. The negative pressure device 10 generates negative pressure and sucks out the residual vitreous inside the simulated eyeball 2. The negative pressure device 10 can generate negative pressure and reach the open end of the simulated vitrectomy head 5 through the pipeline, and the simulated residual vitreous 3 can be sucked out. Use retinal forceps to peel off the simulated preretinal proliferative membrane 4 to achieve the purpose of training the key surgical technique of scleral top pressure method peripheral vitrectomy. Each simulated eyeball 2 is a consumable, and the internal simulated residual vitreous 3 and / or simulated preretinal proliferative membrane 4 are cleared by the trainee. The simulation trainer provided by the present invention can highly simulate the conditions encountered in actual surgery inside the eyeball, allowing users to receive precise training; combined with teaching videos, vitreoretinal surgeons can quickly improve their surgical skills and increase the success rate of surgery, benefiting the people.

[0035] Optionally, the interior of the simulated eyeball 2 of the present embodiment can be reasonably set according to the actual situation of the training required. When only the training is required to cut off the peripheral vitreous, only the simulated residual vitreous 3 can be set inside the simulated eyeball 2; when only the training is required to completely remove the proliferative membrane in front of the peripheral retina, only the simulated preretinal proliferative membrane 4 can be set inside the simulated eyeball 2; when simultaneous training is required, the simulated residual vitreous 3 and the simulated preretinal proliferative membrane 4 can be set inside the simulated eyeball 2, and the simulated residual vitreous 3 and the simulated preretinal proliferative membrane 4 are distributed separately and do not overlap.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application.

[0037] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present application is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. For those skilled in the art, the present invention can have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A scleral pressure method peripheral vitrectomy simulation trainer, characterized by: The invention comprises a face model, a simulated eyeball and a negative pressure vitrectomy head simulation device. The face model is provided with an eye socket, and the simulated eyeball is embedded in the eye socket; the simulated eyeball is provided with one or two of simulated residual vitreous and simulated preretinal proliferative membrane; the negative pressure vitrectomy head simulation device comprises a simulated vitrectomy head with a hollow interior and a negative pressure suction tube connected to the simulated vitrectomy head.

2. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 1, characterized in that: The simulated vitrectomy head is provided with a handle.

3. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 1, characterized in that: A transparent portion is provided on the upward side of the simulated eyeball.

4. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 1, characterized in that: The side wall of the simulated eyeball is provided with a simulated sclera puncture channel, and the simulated sclera puncture channel is communicated with the inside of the simulated eyeball.

5. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 4, characterized in that: The number of the simulated sclera puncture channels is two.

6. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 1, characterized in that: The simulated eyeball is made of silicone and is interference fit with the facial model.

7. The scleral pressure method peripheral vitrectomy simulation trainer according to claim 1, characterized in that: A negative pressure device is provided at one end of the negative pressure suction tube away from the simulated vitrectomy head.

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