CN219609865U

CN219609865U - Surgical training model for separating and taking out lens in femtosecond surgery

Info

Publication number: CN219609865U
Application number: CN202223476212.6U
Authority: CN
Inventors: 陈一兵; 曾东兴; 李懿; 陈剑妆; 陆洁茹; 麦彩琰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-08-29
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to an operation training model for separating and taking out lenses in a femtosecond operation, which comprises a profiling fixing frame plate and an eyeball model, wherein the profiling fixing frame plate is provided with a positioning cylinder for placing the eyeball model and is provided with a positioning sleeve piece for being sleeved with the profiling fixing frame plate so as to stabilize the installation position of the eyeball model; the profiling fixing frame plate comprises a profiling mask, and a hole site is formed in the top of the profiling mask for exposing an eyeball model placed in the positioning cylinder. Compared with three modes of hanging drawing freehand exercise and pig eye and software exercise, the utility model realizes the realization of sense of reality and reality while reducing the learning cost, has higher reduction degree for corresponding steps in the operation process, has easy modeling, at least can provide enough basic exercise before using pig eye exercise, and can effectively reduce the learning curve and learning cost of SMILE.

Description

Surgical training model for separating and taking out lens in femtosecond surgery

Technical Field

The utility model belongs to the technical field of femtosecond laser surgery, and particularly relates to a surgical training model for separating and taking out lenses in femtosecond surgery.

Background

The micro incision stroma lens excision is called as small incision lenticule extraction in English, the English abbreviation is SMILE, the femto second laser micro incision cornea stroma lens extraction is the latest product of cornea refractive surgery developed for more than 30 years, and a large amount of domestic and foreign researches report the safety, effectiveness, predictability and stability as a new technology. Compared with the prior surgery mode, the SMILE has the outstanding characteristics that the cornea flap does not need to be manufactured, and the cornea morphological structure and function integrity are maintained to a more minimally invasive and greater extent.

However, the SMILE operation also has the following difficulties:

(1) The operation difficulty is greatly improved due to the small incision of 2 mm;

(2) Since the device has no automatic tracking system, the optical center positioning of the lens is determined by doctor technology;

(3) Secondary surgical repair is difficult due to the small incision.

It is a challenging task to develop a doctor suitable for the surgical knife SMILE procedure, wherein the national femto-second laser small incision corneal stroma lens removal procedure Specification expert consensus (2018) suggests that the doctor performing the procedure should qualify as an attending physician and more than an ophthalmic physician, have a certain corneal refractive and ophthalmic surgical experience, complete related training and certification, suggest that the FS-LASIK procedure should be completed for more than 100 eyes, FLEx or pseudo (pseudo) SMILE procedure for more than 20 eyes.

Based on the above, it is well known that learning and training are required to avoid complications in actual surgery or to influence the post-operative effect. There are three kinds of SMILE operation training models for practice at present:

(1) By means of hanging drawings and freehand practice, the method has the advantages of low cost and easy acquisition, and the defect of lacking real hand feeling and realistic scene feeling;

(2) The real matrix lens is obtained by utilizing pig eyes and then femtosecond laser scanning, and has the advantages of being the best practice mode at present, closest to the real scene and hand feeling, and the defects of high price (about 3000 RMB/time) for the femtosecond laser scanning, too high learning cost and difficulty in obtaining enough practice opportunities;

(3) The 3D simulation training software on the computer has the advantages of convenient training and no site limitation. The method has the defects that the method lacks of a real scene and practice hand feeling, commercial software is not available in the market at present, and the research and manufacturing cost of the 3D training software is high.

The three training models have advantages and disadvantages, but the reality and the vividness cannot be obtained under the condition of maintaining low cost, so that a model capable of simulating the cornea state (cornea cap and stroma lens) after femtosecond laser scanning of the SMILE operation is urgently needed for a practitioner or a learner to repeatedly practice a method for separating the lens and taking out the lens operation under a table, and the learning cost of the SMILE operation is expected to be reduced while the learning curve of the SMILE operation is shortened, so that the operation proficiency is improved to reduce the occurrence of complications in the operation.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a surgical training model for separating and taking out lenses in a femtosecond operation.

In order to solve the problems, the utility model adopts the following technical scheme:

the surgical training model for separating and taking out the lens in the femtosecond surgery is characterized by comprising a profiling fixing frame plate and an eyeball model, wherein the profiling fixing frame plate is provided with a positioning cylinder for placing the eyeball model and is provided with a positioning sleeve for being sleeved with the positioning sleeve so as to stabilize the mounting position of the eyeball model; the profiling fixing frame plate comprises a profiling mask, and a hole site is formed in the top of the profiling mask for exposing an eyeball model placed in the positioning cylinder.

Preferably, the profiling fixing frame plate comprises a profiling mask, a positioning sleeve, a positioning cylinder and a bottom plate, wherein the mask positioning piece is integrally formed at the edge of the bottom plate.

Preferably, the hole site for placing the eyeball model on the positioning cylinder is designed into an inverted cone structure, and the inner wall surface of the positioning cylinder is formed with wavy textures.

Preferably, the eyeball model consists of a simulated cornea cap, a simulated stroma lens and a simulated eyeball sphere.

Preferably, the number of the positioning cylinders is two, and the positioning cylinders are symmetrically and correspondingly arranged below the hole positions formed by the profiling mask.

Preferably, the profiling mask is positioned and arranged on the bottom plate by the aid of a mask positioning piece.

Preferably, the pseudo-stromal lens is attached to and secured to the outer surface of the pseudo-eyeball sphere by being wrapped with a pseudo-corneal cap.

Preferably, the cornea imitation cap is a film made of polyethylene material, and the thickness dimension is in the range of 0.008mm-0.013 mm.

Preferably, the matrix-like lens is a curved wafer made of polyethylene, the overall diameter size range is 6.3mm-6.7mm, and the thickness size range is 480um-550 um.

Preferably, the eyeball-like sphere is a thin-wall sphere design with a hollow structure, and is made of acrylic materials, and blood vessels and tissues of eyeballs can be printed on the outer surface of the eyeball-like sphere to be matched with the matrix-like lens for positioning and installation.

The beneficial effects of the utility model are that

Compared with the prior art, the utility model has the advantages that:

1. compared with three modes of hanging drawing freehand exercise and pig eye and software exercise, the utility model realizes that the learning cost is reduced and the sense of reality is achieved, has higher reduction degree for corresponding steps in the operation process, is easy to model, and at least can provide enough basic exercise before using pig eye exercise, so the utility model can obviously shorten the learning curve of SMILE operation;

2. the utility model focuses on the strengthening training of the two steps of separating the front and rear surfaces of the lens and taking out the lens after the femtosecond laser scanning, so that the eyeball model only needs to be composed of the simulated cornea cap, the simulated matrix lens and the simulated eyeball sphere, and the eyeball model after production and assembly can only be used once;

3. the utility model designs and forms a profiling mask for improving the sense of reality, and a hole site is formed on the profiling mask corresponding to the positions of two eyes so as to expose an eyeball model placed in a positioning cylinder, wherein the hole site on the positioning cylinder for placing the eyeball model is designed in an inverted cone structure, and the inner wall surface of the positioning cylinder is formed with wave-shaped textures, so that the friction force of the eyeball model when placed in the hole site of the positioning cylinder can be increased, the situation that the simulated cornea cap made of a film is torn and damaged by an operation tool to be wasted due to sliding and rotation of the eyeball model during training is avoided, and the structure is sleeved on a positioning sleeve piece above the eyeball model, so that the installation stability of the eyeball model and the profiling fixing frame plate can be effectively ensured, and the training effect is improved.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic view of an eyeball model according to the present utility model;

fig. 3 is a partially enlarged schematic view of the positioning cylinder of the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present utility model.

As shown in fig. 1 to 3, a surgical training model for separating and removing lenses in a femtosecond surgery according to the present utility model: the device comprises a profiling fixing frame plate and an eyeball model (5), wherein the profiling fixing frame plate is provided with a positioning cylinder (3) for placing the eyeball model (5), and is provided with a positioning sleeve (2) for being sleeved with the positioning sleeve so as to stabilize the mounting position of the eyeball model (5); the profiling fixing frame plate comprises a profiling mask (1), and a hole site is formed in the top of the profiling mask for exposing an eyeball model (5) placed in the positioning cylinder (3).

Wherein the profile modeling fixed frame board includes profile modeling face guard (1), location external member (2), positioning cylinder (3) and bottom plate (4), and wherein the edge integrated into one piece of bottom plate (4) has face guard setting element (40), and its effect is supplementary profile modeling face guard (1) and is fixed a position the installation, and avoids profile modeling face guard (1) to produce too much displacement in the training process after the installation and influence the training, and then leads to the training result to have the deviation.

It is worth mentioning that the hole site that supplies eyeball model (5) to place on positioning cylinder (3) is for back taper structural design, and its internal face shaping has the wave texture, and frictional force when this kind of design can increase eyeball model (5) place in positioning cylinder (3) hole site, avoid training when using because of eyeball model (5) slip, rotate and lead to simulated cornea cap (50) that the film made to be torn apart, destroy by the surgical instrument and do not, this structure overlaps positioning sleeve member (2) of arranging above eyeball model (5) in addition, can effectively ensure eyeball model (5) and the installation steadiness in the fixed frame plate of profile modeling to improve training effect.

It should be noted that the eyeball model (5) is composed of a simulated cornea cap (50), a simulated stroma lens (51) and a simulated eyeball sphere (52), wherein the simulated stroma lens (51) is attached and fixed on the outer surface of the simulated eyeball sphere (52) by being wrapped by the simulated cornea cap (50), in particular, the simulated stroma lens (51) is placed on the outer surface of the simulated eyeball sphere (52), and then the simulated cornea cap (50) is subjected to plastic package through equipment so as to be wrapped on the simulated eyeball sphere (52) with the simulated stroma lens (51). The thickness of the simulated cornea cap (50) is a film made of polyethylene, the thickness of the simulated cornea cap ranges from 0.008mm to 0.013mm, the thickness of the simulated stroma lens (51) is a curved surface wafer made of polyethylene, the whole diameter of the simulated cornea cap ranges from 6.3mm to 6.7mm, the thickness of the simulated stroma lens ranges from 480um to 550um, and the simulated cornea cap and the simulated stroma lens are designed to be attached to the specifications of actual eyeball tissues, so that the simulated stroma lens is more attached to the conditions faced in the operation, and the training effect of the simulated cornea cap is ensured. The utility model focuses on the strengthening training of the two steps of separating the front surface and the rear surface of the lens and taking out the lens after the femtosecond laser scanning, so that the eyeball model (5) only needs to be composed of three parts, and the eyeball model (5) after production and assembly can only be used once, so that a user cannot put into the simulated cornea cap (50) for a second time by himself, and the error of training caused by repeated use is avoided.

The eyeball-like sphere (52) is of a hollow thin-wall sphere design, is made of acrylic materials, is durable in use, light in weight, low in cost and good in hardness, can be recycled for repeated processing for hospital training, and is environment-friendly and saving while controllable in cost.

When the device is used, the profiling mask (1) and the positioning sleeve (2) are sequentially removed, then the eyeball model (5) is placed in the hole of the positioning cylinder (3) on the bottom plate (4), the position of the matrix-like lens (51) in the eyeball model (5) needs to be paid attention to, the eyeball model is placed in the hole of the positioning cylinder (3) upwards, and finally the profiling mask (1) is covered by the positioning sleeve (2) in a sleeved mode, so that the device can be matched with a surgical instrument for training. When the artificial matrix lens is used for training, the surgical instrument is used for opening the artificial cornea cap (50) beside the edge of the artificial matrix lens (51), then the artificial matrix lens (51) in the artificial matrix lens is taken out from the opening with a certain width, and the artificial cornea cap (50) is successfully taken out without obvious deformation or tearing, so that the operation is proved to be successful.

Therefore, the learning curve and learning cost of SMILE can be effectively reduced, a training model with high personality ratio is provided for operators, so that enough and basic operation training is obtained before the eyes of pigs are not needed, software is needed or the eyes of pigs are operated, the increase of learning cost is avoided, or the operation technology of the operators is improved in a difficult-to-find mode.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The surgical training model for separating and taking out the lens in the femtosecond surgery is characterized by comprising a profiling fixing frame plate and an eyeball model (5), wherein the profiling fixing frame plate is provided with a positioning cylinder (3) for placing the eyeball model (5) and is provided with a positioning sleeve (2) for being sleeved with the positioning sleeve so as to stabilize the mounting position of the eyeball model (5); the profiling fixing frame plate comprises a profiling mask (1), and a hole site is formed in the top of the profiling mask for exposing an eyeball model (5) placed in the positioning cylinder (3).

2. Surgical training model for separating and removing lenses in femto-second surgery according to claim 1, in which the profiled fixing frame plate comprises a profiled mask (1), a locating sleeve (2), a locating cylinder (3) and a base plate (4), wherein the edge of the base plate (4) is integrally formed with a mask locating piece (40).

3. Surgical training model for separating and removing lenses in femto-second surgery according to claim 1, in which the hole site on the positioning cylinder (3) for placing the eyeball model (5) is designed in an inverted cone structure, and the inner wall surface of the positioning cylinder is formed with wave-shaped textures.

4. Surgical training model for separating and removing lenses in femto-second surgery according to claim 1, in which the eye model (5) consists of a simulated corneal cap (50), a simulated stromal lens (51) and a simulated globe (52).

5. Surgical training model for separating and extracting lenses in femtosecond surgery according to claim 2, characterized in that the number of the positioning cylinders (3) is two, and the positioning cylinders are symmetrically and correspondingly arranged under the hole site formed by the profiling mask (1).

6. Surgical training model for separating and removing lenses in femto-second surgery according to claim 2, in which the profiling mask (1) is positioned on the base plate (4) with the aid of mask positioning elements (40).

7. The surgical training model for separating and removing lenses in femto-second surgery according to claim 4, wherein said pseudo-stroma lens (51) is attached and fixed to the outer surface of the pseudo-eyeball sphere (52) by being wrapped by the pseudo-cornea cap (50).

8. The model of claim 4, wherein the simulated corneal cap (50) is a film made of polyethylene material and has a thickness ranging from 0.008mm to 0.013 mm.

9. The model of claim 4, wherein the matrix-like lens (51) is a curved wafer made of polyethylene, the overall diameter ranges from 6.3mm to 6.7mm, and the thickness ranges from 480um to 550 um.

10. The model for surgical training for separating and removing lenses in femto-second surgery according to claim 4, wherein the eyeball-like sphere (52) is a hollow thin-wall sphere design and is made of acrylic material.