Training tool for nucleus chopping action in cataract phacoemulsification surgery

Abstract

The utility model provides a nucleus chopping action training tool in cataract ultrasonic emulsification surgery, which comprises a human eye anterior segment environment simulation device, and is characterized by further comprising a first nucleus body and a second nucleus body, the two nucleus bodies are magnetically connected through a first magnetic attraction piece to form a cylindrical simulation nucleus, and a second magnetic attraction piece is arranged between the first nucleus body and the second nucleus body. The cylindrical simulation nucleus is arranged at the position of a simulation human eye nucleus in the human eye anterior segment environment simulation device; one end face of the cylindrical simulation nucleus is an operation face, the other end face of the cylindrical simulation nucleus is a nucleus back face, and at least two grooves used for rotating the cylindrical simulation nucleus are formed in the operation face. Ophthalmologists can be taught to operate normatively during training, and can know whether training actions are accurate or not in time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a training tool for the nucleus splitting action in phacoemulsification surgery for cataract. Background Technique

[0002] During phacoemulsification surgery for cataract, due to the very small operable space in the eye and the extremely fragile surrounding organs, a mistake in a subtle action may cause damage to the surrounding organs or even lead to the failure of the surgery. Currently, the mainstream surgical method for phacoemulsification surgery for cataract is horizontal nucleus splitting. The first nucleus splitting in horizontal nucleus splitting is very crucial. If the first nucleus splitting is successful, the whole surgery will be very smooth. However, if the first nucleus splitting fails, the whole surgery will be more troublesome and the probability of surgical complications will increase. The main reason for the failure of the first nucleus splitting is that the corresponding point cannot be found. It can be seen that the ophthalmologist's ability to master the correct operation of the first nucleus splitting is one of the key factors for the success of phacoemulsification surgery for cataract.

[0003] In the prior art, the Chinese utility model patent publication number is CN211787644U, which provides a training tool for fine hand movements. It sets up a simulated surgical operation environment in the human eye. Among them, a circular rotor is set to simulate the lens of the human eye, and the operation on the circular rotor is carried out to achieve the purpose of practice. However, this circular rotor only supports nucleus rotation or improves the fine hand operation ability by following the marking lines or points set on it, and cannot simulate the scene during nucleus splitting, resulting in low training efficiency. Therefore, there is an urgent need for a training tool for the nucleus splitting action in phacoemulsification surgery for cataract to solve the above technical problems. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide a training tool for the nucleus splitting action in phacoemulsification surgery for cataract to solve the problem that the scene during nucleus splitting cannot be simulated in the above prior art.

[0005] The present utility model provides a training tool for the nucleus splitting action in phacoemulsification surgery for cataract, including a device for simulating the anterior segment environment of the human eye. It is characterized in that it further includes a first nucleus body and a second nucleus body. The two nucleus bodies are magnetically connected by a first magnetic part to form a cylindrical simulated nucleus. The cylindrical simulated nucleus is arranged at the position of the human eye nucleus in the device for simulating the anterior segment environment of the human eye; one end face of the cylindrical simulated nucleus is an operation surface, and the other end face is the back of the nucleus. At least two grooves for rotating the cylindrical simulated nucleus are arranged on the operation surface.

[0006] Preferably, two notches are opened on the side surface of the cylindrical simulated nucleus. One end of each notch communicates with the operation surface, and the other end communicates with the back of the nucleus. The two notches are respectively located at the connection of the first nucleus body and the second nucleus body.

[0007] Preferably, a force application groove is provided on the back surface of the core, and the force application groove is located on the connection seam formed between the first core body and the second core body.

[0008] Preferably, an avoidance groove is provided on the operation surface, and the avoidance groove gradually deepens from one end of the connection seam formed between the first core body and the second core body towards the middle, so as to guide the phacoemulsification head to reach an appropriate depth.

[0009] Preferably, a V-shaped groove is provided on the operation surface along the connection seam.

[0010] Preferably, the first magnetic attraction member includes a plurality of magnet hemispheres, the plurality of magnet hemispheres are uniformly distributed on the contact surface of the first core body, and a plurality of hemispherical holes are correspondingly provided on the contact surface of the second core body, and the magnet hemispheres are magnetically attracted and matched with the hemispherical holes.

[0011] Preferably, viscoelastic agent is filled around the cylindrical simulated nucleus.

[0012] Preferably, one of the first core body and the second core body is composed of a third core body and a fourth core body, and a second magnetic attraction member is provided between the third core body and the fourth core body to achieve separable connection.

[0013] The beneficial effects of the present utility model are as follows: Compared with the prior art, the present utility model is provided with a cylindrical simulated nucleus for ophthalmologists to train nucleus splitting. The cylindrical simulated nucleus can be separated into two half nuclei. Therefore, it can not only effectively improve the fine hand movement operation ability of ophthalmologists, but also provide a relatively real nucleus splitting experience and enable them to timely know whether the training actions are accurate. The training tool of the present utility model is a durable product, can be reused, has good training effects, is convenient to use, and has low use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of the present utility model.

[0015] Figure 2 is a perspective view of the cylindrical simulated nucleus of the present utility model.

[0016] Figure 3 is a perspective view of the cylindrical simulated nucleus of the present utility model when it is split.

[0017] Figure 4 is a top view of the back surface of the core of the cylindrical simulated nucleus of the present utility model.

[0018] Figure 5 is a schematic longitudinal sectional view of the present utility model.

[0019] Figure 6 is a schematic view of the cylindrical simulated nucleus of another embodiment in the present utility model.

[0020] The descriptions of the main component symbols are as follows:

[0021] Base 1; circular groove 11; bowl-shaped transparent cover 12; operation hole 121; circular opaque film 13; fixing part 14; bracket 2: cylindrical simulated nucleus 3; first nuclear body 31; magnet hemisphere 311; second nuclear body 32; hemisphere hole 321; groove 33; V-shaped groove 34; notch 35; force application groove 36; avoidance groove 37. Specific embodiments

[0022] In order to describe the present utility model more clearly, the present utility model will be further described below with reference to the accompanying drawings.

[0023] In the following description, specific examples are given in detail to provide a deeper understanding of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. It should be understood that the specific embodiments are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Please refer to Figure 1 , Figure 2 and Figure 5 , the present utility model provides a training tool for the nucleus splitting action in phacoemulsification surgery for cataract, including a device for simulating the anterior segment environment of the human eye. The device includes a base 1 and a bracket 2. The base 1 is arranged on the bracket 2. The base 1 is provided with a circular groove 11 and a bowl-shaped transparent cover 12. The bowl-shaped transparent cover 12 covers the circular groove 11. The bowl-shaped transparent cover 12 is provided with a hole 121 allowing an ophthalmic surgical tool to pass through. It further includes a first nuclear body 31 and a second nuclear body 32. The first nuclear body and the second nuclear body are magnetically connected by a first magnetic component to form a cylindrical simulated nucleus 3. The cylindrical simulated nucleus 3 is arranged in the circular groove 11. A circular opaque film 13 is arranged along the circumference at the opening of the circular groove 11. The circular opaque film 13 covers the cylindrical simulated nucleus 3. During training, the doctor inserts the surgical instrument into the hole in the arc-shaped transparent cover and performs the nucleus splitting operation on the cylindrical simulated nucleus. The cylindrical simulated nucleus can be split into two semi-circular nuclei to achieve a real simulation of the nucleus splitting operation.

[0025] Please refer to Figure 2 , after the first nuclear body 31 and the second nuclear body 32 are magnetically connected to form the cylindrical simulated nucleus 3, one end face of the cylindrical simulated nucleus 3 is the operation surface, and the other end face is the nucleus back surface. At least two grooves 33 are arranged on the operation surface. The doctor inserts the nucleus splitting hook into the groove and applies force to it to rotate the cylindrical simulated nucleus, so as to train the nucleus rotation operation.

[0026] Please refer to Figure 2 and Figure 3, both ends of the contact surface between the first nuclear body 31 and the second nuclear body 32 are inwardly cut inclined surfaces. When the first nuclear body and the second nuclear body are magnetically connected, the two inclined surfaces form a notch 35 that communicates with both end faces of the cylindrical simulated nucleus 3, so as to simulate that during real surgical operation, the doctor inserts the nucleus splitting hook into the back of the nucleus for nucleus splitting operation.

[0027] For further reference, please see Figure 4 , a force application groove 36 is provided on the back of the nucleus. The force application groove is located on the connection seam formed between the first nuclear body 31 and the second nuclear body 32. When simulating the nucleus splitting operation, after the nucleus splitting hook passes through the notch, it can hook the force application groove and then perform the splitting operation to train the doctor's ability to find the nucleus splitting point.

[0028] In this embodiment, please see Figure 2 and Figure 3 An avoidance groove 37 is provided on the operation surface. The avoidance groove 37 gradually deepens from one end of the connection seam formed between the first nuclear body 31 and the second nuclear body 32 to the middle, so as to guide the phacoemulsification head to reach an appropriate depth.

[0029] Please see Figure 2 and Figure 3 , in this embodiment, a V-shaped groove 34 is opened along the connection seam between the first nuclear body 31 and the second nuclear body 32 on the operation surface. When the doctor is training, the nucleus splitting hook is used to split the first nuclear body and the second semi-circle along the V-shaped groove. The setting of the V-shaped groove can provide a good entry point for the nucleus splitting hook and play a guiding role for the doctor.

[0030] In the present utility model, the contact surface parts of the two semi-circle nuclei can be made of magnets to achieve separable connection of the two semi-circle nuclei. In order to better simulate the feel of real nucleus splitting, the magnetic attraction force between the two semi-circle nuclei should not be too strong, otherwise the split parts will be re-attracted together, affecting the training.

[0031] Therefore, please see Figure 3 , the magnetic attraction member of the present utility model includes a plurality of magnet hemispheres 311. The plurality of magnet hemispheres 311 are evenly distributed on the contact surface of the first semi-circle 31. A plurality of hemispherical holes 321 are correspondingly provided on the contact surface of the second nuclear body 32. The magnet hemispheres 311 are magnetically matched with the hemispherical holes 321. In this embodiment, both the first nuclear body and the second nuclear body are made of non-magnetic metal materials. Through the attraction between the magnet hemispheres and the hemispherical holes, stable connection can be achieved. At the same time, after the first nuclear body and the second semi-circle are split, they will not be re-attracted together due to too strong magnetic force.

[0032] Furthermore, in this embodiment, the circular groove is filled with viscoelastic agent to simulate the real environment inside the human eye, and the viscoelastic agent can also prevent the first nuclear body and the second nuclear body from being re-attracted.

[0033] In this embodiment, the shape of the bowl-shaped transparent cover simulates the shape of the human cornea, and the size of the internal space of the circular groove simulates the size of the anterior chamber of the human eye. In this way, the surgical operation environment inside the human eye can be better simulated. In addition, a ring-shaped covering material can be covered on the bowl-shaped transparent cover, and the covering material can be replaced with different sizes to simulate the influence on the doctor's operation due to different pupil sizes of different patients during real surgery. When the patient's pupil is small, the surgical field of view becomes smaller and the difficulty increases. Therefore, when training, increasing the covering area of the covering material on the simulated nucleus for nucleus splitting can enable the doctor to adapt to the scenario with a small surgical field of view and improve the success rate during real surgery.

[0034] In this embodiment, at least two holes allowing ophthalmic surgical tools to pass through are provided on the transparent upper cover, and the aperture sizes of the at least two holes are different. When the sizes of more than two holes are different, the hole with a larger aperture is arranged on the right side in the main viewing direction of the training tool, and the hole with a smaller aperture is arranged on the left side. In this way, it is more in line with the surgical scenario. During training, novice trainers can use the hole with a larger aperture for training, while trainers with certain fine operation capabilities can use the hole with a smaller aperture for training, achieving the purpose of hierarchical training, with a more user-friendly and targeted design.

[0035] As Figure 1 and Figure 5 shown, the base 1 is provided with a fixing part 14 extending horizontally outwards, and the base 1 is detachably connected to the bracket 2 through the fixing part 14.

[0036] In another embodiment of the present application, please refer to Figure 6 , one of the first nuclear body 31 and the second nuclear body 32 is composed of a third nuclear body and a fourth nuclear body. Second magnetic members are provided on the contact surfaces of the two nuclear bodies to achieve separable connection. Grooves are also correspondingly provided on the two nuclear bodies. Further, the above-mentioned notches and force application grooves are also provided on the contact surfaces of the two nuclear bodies to achieve the training purpose of splitting the human eye nucleus into multiple pieces during simulated real surgical operations.

[0037] The advantages of the present utility model are as follows:

[0038] 1) A cylindrical simulated nucleus is provided in the present utility model. The cylindrical simulated nucleus can be divided into two semi-circular nuclei, which can better simulate the effect of the lens being split during nucleus splitting and achieve a better training effect.

[0039] 2) In the present utility model, the two semi-circular nuclei are magnetically connected through a magnet hemisphere and a hemisphere hole, and the magnetic force is moderate, which can better achieve the training purpose.

[0040] 3) Grooves are provided on the cylindrical simulated nucleus, which can train the nucleus rotation operation.

[0041] It should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of the stated features, integers, steps, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Claims

1. A training tool for the nucleus splitting action in phacoemulsification cataract surgery, including a device for simulating the anterior segment environment of the human eye, characterized in that, It further includes a first nuclear body and a second nuclear body. The two nuclear bodies are magnetically connected by a first magnetic member to form a cylindrical simulated nucleus, and the cylindrical simulated nucleus is arranged at the position of the simulated eye nucleus in the simulated anterior segment environment device of the human eye; one end face of the cylindrical simulated nucleus is an operation surface, and the other end face is a nuclear back surface. At least two grooves for rotating the cylindrical simulated nucleus are arranged on the operation surface.

2. The training tool for phacoemulsification cataract surgery regarding nucleus splitting motion according to claim 1, wherein, Two notches are formed on the side surface of the cylindrical simulated nucleus. One end of each notch communicates with the operation surface, and the other end communicates with the nuclear back surface. The two notches are respectively located at the connection of the first nuclear body and the second nuclear body.

3. The training tool for the nucleus splitting action in phacoemulsification for cataract according to claim 1, wherein A force application groove is arranged on the nuclear back surface, and the force application groove is located at the connection of the first nuclear body and the second nuclear body.

4. The training tool for phacoemulsification cataract surgery regarding nucleus splitting movement according to claim 1, characterized in that, An avoidance groove is arranged on the operation surface. The avoidance groove gradually deepens from one end of the connection seam formed between the first nuclear body and the second nuclear body towards the middle to guide the phacoemulsification head into the avoidance groove.

5. The training tool for the nucleus splitting action in phacoemulsification for cataract according to claim 4, characterized in that, A V-shaped groove is arranged on the operation surface along the connection seam.

6. The training tool for the nucleus splitting action in phacoemulsification for cataract according to claim 1, characterized in that, The first magnetic member includes a plurality of magnet hemispheres. The plurality of magnet hemispheres are evenly distributed on the contact surface of the first nuclear body, and a plurality of hemispherical holes are correspondingly arranged on the contact surface of the second nuclear body. The magnet hemispheres are magnetically matched with the hemispherical holes.

7. The training tool for the nucleus splitting action in phacoemulsification for cataract according to claim 1, wherein, Viscoelastic agent is filled around the cylindrical simulated nucleus.

8. The training tool for the nucleus splitting action in phacoemulsification for cataract according to claim 1, characterized in that, One of the first nuclear body and the second nuclear body is composed of a third nuclear body and a fourth nuclear body, and a second magnetic member is arranged between the third nuclear body and the fourth nuclear body to achieve separable connection.

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