Pig eye fixing model for simulating ophthalmologic operation

Abstract

The utility model discloses a pig eye fixing model for simulating an ophthalmologic operation, and belongs to the technical field of medical experiment instruments. Comprising a fixed installation box with an installation notch formed in the upper end and a sliding installation base arranged in the installation notch, the movable installation base comprises an installation outer shell arranged in the installation notch and an installation inner shell arranged in the installation outer shell, and when the pig eyeball is fixed, the mode of combining a negative pressure adsorption method and a clamping method is adopted, the eyeball fixing effect is improved, and the fixing effect of the eyeball is improved. The situation of shaking or instability in the operation process can be avoided, the operation precision and safety are improved, during negative pressure adsorption, a multi-point position mode is adopted, a V-shaped negative pressure opening is formed in each point position, contact with the outer wall of a pig eyeball is increased, the safety problems of tissue rupture, eyeball displacement and the like caused by too large local negative pressure are avoided, and the operation safety is improved. The device has the advantages of being good in fixing effect, high in simulation authenticity and safety and suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of medical experimental instruments, in particular to a pig eye fixed model for simulating ophthalmic surgery. Background Art

[0002] In recent years, my country's medical and health level has been continuously improving, and the technology of diagnosis and treatment and surgical treatment has become increasingly mature, especially in surgical operations, the degree of sophistication has been continuously improved. Ophthalmology is a discipline that requires higher and more sophisticated requirements among various disciplines. Its importance to patients and doctors is self-evident. Before mastering the knowledge and skills of ophthalmic surgery, a lot of practical practice is required before being able to go on the operating table to complete the operation. The structural morphology of the pig eye is very suitable as a practice operation model for practitioners. It can achieve conditions similar to those of the human eye, and at the same time it can stimulate the learning interest of interns. It has low cost and low risk. It has achieved good results in practical operations and has made a significant contribution to promoting the development of ophthalmic surgery and preventing the occurrence of medical accidents.

[0003] However, in actual operation, pig eyes are usually fresh pig eyes collected from slaughter on the same day. After cleaning, they are fixed with pins or fixing devices, and the conjunctiva of the pig eyes is evenly distributed and fixed on four quadrants. However, it is difficult to operate flexibly and conveniently after fixing with pins, which affects the actual operation practice effect. General fixing devices may cause the pig eyes to move and shift during practical exercises. Therefore, it is necessary to provide a pig eye fixing device that can flexibly adjust the position of the pig eyes and has a good fixing effect. Utility Model Content

[0004] In view of the above problems, the utility model discloses a pig eye fixation model for simulating ophthalmic surgery.

[0005] The technical solution of the utility model is: a pig eye fixed model for simulating ophthalmic surgery, comprising a fixed installation box with an installation recess at the upper end, and a sliding installation seat arranged in the installation recess;

[0006] The sliding mounting seat includes a mounting outer shell arranged in a mounting recess and a mounting inner shell arranged in the mounting outer shell. The inner wall of the mounting outer shell is provided with a plurality of negative pressure tubes which are connected to the mounting inner shell. A V-shaped negative pressure port is provided in the mounting inner shell and corresponds to each negative pressure tube. Each negative pressure tube is connected to a micro negative pressure pump. A plurality of micro hydraulic cylinders which penetrate the mounting inner shell are evenly arranged along the circumferential direction at the upper end of the inner wall of the mounting outer shell. A plurality of arc-shaped limit fixing plates which are connected to the micro hydraulic cylinders in a one-to-one correspondence are provided in the mounting inner shell. The V-shaped negative pressure port and the arc-shaped limit fixing plates are both made of soft materials.

[0007] Furthermore, an inner wall of the mounting recess is provided with an arc-shaped sliding groove along the arc length direction, and an outer wall of the mounting shell is provided with a plurality of sliding blocks slidably connected to the arc-shaped sliding groove, wherein one side of one of the sliding blocks is provided with a horizontal sliding rod that passes through the fixed mounting box and extends to the outside, and an arc-shaped notch is provided on the outer wall of the fixed mounting box near the horizontal sliding rod, and a threaded limiting sleeve is threadedly connected to the outer wall of the horizontal sliding rod at a position outside the fixed mounting box.

[0008] Description: When it is necessary to adjust the direction of the pig's eye placed in the mounting inner shell, the staff screws the threaded limiting sleeve to move it on the horizontal sliding rod to the side away from the outer wall of the fixed mounting box, and then moves the horizontal sliding rod to make each sliding block slide synchronously in the arc-shaped sliding groove, and the sliding mounting seat as a whole rotates in the mounting recess, thereby achieving the purpose of adjusting the direction of the pig's eye. Finally, the threaded limiting sleeve is screwed in the opposite direction to make it contact with the outer wall of the fixed mounting box, and the sliding mounting seat is fixed by the friction between the threaded limiting sleeve and the outer wall of the fixed mounting box. Adjusting the direction of the pig's eyeball can simulate the situation in a real surgical environment, can simulate the surgical process more realistically, help doctors better master surgical skills, can more accurately control the direction of the eyeball, avoid errors, and improve the safety of the operation. It has a simple structure and is easy to operate.

[0009] Furthermore, an operating ring is connected to one end of the horizontal sliding rod located outside the fixed installation box.

[0010] Note: The operating ring allows the horizontal sliding rod to move along the arc-shaped notch.

[0011] Furthermore, the mounting outer shell and the mounting inner shell are both made of transparent materials, and a light source is provided in the mounting recess.

[0012] Description: Since the mounting outer shell and the mounting inner shell are both made of transparent materials, when the light source is turned on, the pig eyeball will receive a very obvious red light reflection inside the eye, which is helpful for distinguishing the subtle anatomical structure inside the eye, so as to help trainees simulate human eye microsurgery to the greatest extent and quickly master ophthalmic intraocular microsurgery skills.

[0013] Furthermore, negative pressure suction cups are provided at the four corners of the bottom end of the fixed installation box, a buckle cover is provided at the upper end of the fixed installation box, and a lifting handle is provided at the upper end of the buckle cover.

[0014] Description: When using the pig eye fixation model, the whole is fixed and installed by a negative pressure suction cup to improve stability, avoid shaking or instability during the operation, and improve surgical accuracy and safety. When not in use, the installation recess and sliding mounting seat are covered by a buckle cover to reduce the number of cleaning times and reduce the user's workload. The purpose of the lifting handle is to facilitate operation.

[0015] The working principle of this utility model:

[0016] Place a pig eyeball in the mounting inner shell, extract the gas between the pig eyeball and the mounting inner shell through a micro negative pressure pump and various negative pressure tubes, and use negative pressure to fix the pig eyeball at multiple points. Then, through the extension of each micro hydraulic cylinder, make each arc-shaped limit fixing plate approach the center of the circle. When each arc-shaped limit fixing plate contacts the pig eyeball, close the micro hydraulic cylinder, and clamp and fix the side wall of the pig eyeball through the area formed between each arc-shaped limit fixing plate. Finally, use the pig eyeball to simulate ophthalmic surgery.

[0017] Beneficial effects of the utility model:

[0018] The utility model can simulate the situation in a real surgical environment, can simulate the surgical process more realistically, and help doctors better master surgical skills. By moving the horizontal sliding rod, each sliding block can slide synchronously in the arc-shaped sliding groove, and the sliding mounting seat as a whole rotates in the mounting recess to achieve the purpose of adjusting the direction of the pig's eye. The direction of the eyeball can be controlled more accurately to avoid errors and improve the safety of the operation. The structure is simple and the operation is convenient. When fixing the pig's eyeball, a combination of negative pressure adsorption and clamping method is adopted to improve the eyeball fixation effect, which can avoid shaking or instability during the operation and improve the accuracy and safety of the operation. When performing negative pressure adsorption, a multi-point form is adopted, and a V-shaped negative pressure port is set at each point to increase contact with the outer wall of the pig's eyeball, so as to avoid safety problems such as tissue rupture and eyeball displacement caused by excessive local negative pressure. The utility model has the advantages of good fixing effect, high simulation authenticity and safety, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0021] Figure 3 It is a top view of the utility model.

[0022] Among them, 1-fixed mounting box, 10-mounting recess, 100-light source, 11-arc-shaped sliding groove, 12-sliding block, 120-horizontal sliding rod, 121-threaded limiting sleeve, 122-operating ring, 13-arc-shaped notch, 14-negative pressure suction cup, 15-buckle cover, 150-lifting handle, 2-sliding mounting seat, 20-mounting outer shell, 200-negative pressure tube, 201-V-shaped negative pressure port, 203-micro hydraulic cylinder, 204-arc-shaped limit fixing plate, 21-mounting inner shell. DETAILED DESCRIPTION

[0023] Example 1

[0024] like Figure 1 , 2 As shown in FIG. 3 , a pig eye fixed model for simulating ophthalmic surgery comprises a fixed installation box 1 with an installation recess 10 at the upper end, and a sliding installation seat 2 arranged in the installation recess 10;

[0025] The sliding mounting seat 2 includes a mounting outer shell 20 arranged in the mounting recess 10, and a mounting inner shell 21 arranged in the mounting outer shell 20. The inner wall of the mounting outer shell 20 is provided with 8 negative pressure tubes 200 which are connected to the mounting inner shell 21. A V-shaped negative pressure port 201 is provided in the mounting inner shell 21 and corresponds to each negative pressure tube 200. Each negative pressure tube 200 is connected to a micro negative pressure pump. Four micro hydraulic cylinders 203 which penetrate the mounting inner shell 21 are evenly arranged at the upper end of the inner wall of the mounting outer shell 20 in the circumferential direction. Four arc-shaped limit fixing plates 204 which are connected to the micro hydraulic cylinders 203 in a one-to-one correspondence are provided in the mounting inner shell 21. Both the V-shaped negative pressure port 201 and the arc-shaped limit fixing plate 204 are made of soft materials.

[0026] An arc-shaped sliding groove 11 is provided on the inner wall of the installation recess 10 along the arc length direction, and three sliding blocks 12 are provided on the outer wall of the installation housing 20 for sliding connection with the arc-shaped sliding groove 11, one side of one of the sliding blocks 12 is provided with a horizontal sliding rod 120 that penetrates the fixed installation box 1 and extends to the outside, an arc-shaped notch 13 is provided on the outer wall of the fixed installation box 1 near the horizontal sliding rod 120, and a threaded limiting sleeve 121 is threadedly connected to the outer wall of the horizontal sliding rod 120 and located at the outer position of the fixed installation box 1;

[0027] An operating ring 122 is connected to one end of the horizontal sliding rod 120 located outside the fixed installation box 1;

[0028] The mounting outer shell 20 and the mounting inner shell 21 are both made of transparent materials, and a light source 100 is disposed in the mounting recess 10;

[0029] A negative pressure suction cup 14 is provided at each of the four corners of the bottom of the fixed installation box 1, a buckle cover 15 is provided at the upper end of the fixed installation box 1, and a lifting handle 150 is provided at the upper end of the buckle cover 15;

[0030] Among them, the micro negative pressure pump, the micro hydraulic cylinder 203, the light source 100 and the negative pressure suction cup 14 all adopt the existing technology, and the soft material adopted by the V-shaped negative pressure port 201 and the arc-shaped limiting fixing plate 204 is silicone.

[0031] Example 2

[0032] This embodiment discloses a method for using a pig eye fixed model for simulating ophthalmic surgery based on Embodiment 1, comprising the following steps:

[0033] Remove the buckle cover 15 by lifting the handle 150, and fix the whole body by the negative pressure suction cup 14;

[0034] The pig eyeball is placed in the mounting inner shell 21, and the air between the pig eyeball and the mounting inner shell 21 is extracted through the micro negative pressure pump and each negative pressure tube 200, and the pig eyeball is fixed at multiple points by using negative pressure, and then, each arc-shaped limit fixing plate 204 is moved closer to the center of the circle through the extension effect of each micro hydraulic cylinder 203, and when each arc-shaped limit fixing plate 204 contacts the pig eyeball, the micro hydraulic cylinder 203 is closed, and the side wall of the pig eyeball is clamped and fixed through the area formed between each arc-shaped limit fixing plate 204;

[0035] When the orientation of the pig eye placed in the mounting inner shell 21 needs to be adjusted, the staff screws the threaded limiting sleeve 121 to make it move on the horizontal sliding rod 120 to the side away from the outer wall of the fixed mounting box 1, and then moves the horizontal sliding rod 120 to make each sliding block 12 slide synchronously in the arc-shaped sliding groove 11, and the sliding mounting seat 2 as a whole rotates in the mounting recess 10, so as to achieve the purpose of adjusting the orientation of the pig eye, and finally, screws the threaded limiting sleeve 121 in the opposite direction to make it contact with the outer wall of the fixed mounting box 1, and fixes the sliding mounting seat 2 by the friction between the threaded limiting sleeve 121 and the outer wall of the fixed mounting box 1;

[0036] Since both the mounting outer shell 20 and the mounting inner shell 21 are made of transparent materials, when the light source 100 is turned on, the pig eyeball can obtain extremely obvious red light reflection inside the eye, which is helpful for distinguishing the subtle anatomical structure inside the eye.

Claims

1. A pig eye fixed model for simulating ophthalmic surgery, characterized in that: It comprises a fixed installation box (1) with an installation recess (10) at the upper end, and a sliding installation seat (2) arranged in the installation recess (10); The sliding mounting seat (2) comprises a mounting outer shell (20) arranged in a mounting recess (10), and a mounting inner shell (21) arranged in the mounting outer shell (20); the inner wall of the mounting outer shell (20) is provided with a plurality of negative pressure tubes (200) which are connected to the mounting inner shell (21); a V-shaped negative pressure port (201) is provided in the mounting inner shell (21) and corresponds to each negative pressure tube (200); each negative pressure tube (200) is connected to a micro negative pressure pump; and a plurality of micro hydraulic cylinders (203) which penetrate the mounting inner shell (21) are evenly arranged at the upper end of the inner wall of the mounting outer shell (20) along the circumferential direction; a plurality of arc-shaped limit fixing plates (204) which are connected to the micro hydraulic cylinders (203) in a one-to-one correspondence are provided in the mounting inner shell (21); the V-shaped negative pressure port (201) and the arc-shaped limit fixing plates (204) are both made of soft materials.

2. A pig eye fixation model for simulating ophthalmic surgery according to claim 1, characterized in that: The inner wall of the installation recess (10) is provided with an arc-shaped sliding groove (11) along the arc length direction, and the outer wall of the installation shell (20) is provided with a plurality of sliding blocks (12) slidably connected to the arc-shaped sliding groove (11), one side of one of the sliding blocks (12) is provided with a horizontal sliding rod (120) that penetrates the fixed installation box (1) and extends to the outside, and an arc-shaped notch (13) is provided on the outer wall of the fixed installation box (1) near the horizontal sliding rod (120), and a threaded limiting sleeve (121) is threadedly connected to the outer wall of the horizontal sliding rod (120) and located at an external position of the fixed installation box (1).

3. A pig eye fixation model for simulating ophthalmic surgery according to claim 2, characterized in that: An operating ring (122) is connected to one end of the horizontal sliding rod (120) located at an outer position of the fixed installation box (1).

4. A pig eye fixation model for simulating ophthalmic surgery according to claim 1, characterized in that: The mounting outer shell (20) and the mounting inner shell (21) are both made of transparent materials, and a light source (100) is provided in the mounting recess (10).

5. The pig eye fixation model for simulating ophthalmic surgery according to claim 1, characterized in that: Negative pressure suction cups (14) are provided at the four corners of the bottom of the fixed installation box (1), a buckle cover (15) is provided at the upper end of the fixed installation box (1), and a lifting handle (150) is provided at the upper end of the buckle cover (15).

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