Cornea operation positioning device

Abstract

The utility model discloses a cornea operation positioning device, which comprises a positioning ring, a plurality of angle indicating elements and a plurality of anti-slip salient points, the positioning ring is in a big-end-up circular truncated cone shape, a plurality of angle indicating elements are formed on the inner wall of the positioning ring, and a bottom ring opening of the positioning ring protrudes downwards to form the plurality of anti-slip salient points; the angle indicating element consists of a cylinder and a sphere at the top end, and the cylinder is gradually sunk into the positioning ring from top to bottom; the exposed sizes of the adjacent angle indicating elements in the positioning ring are different; and the handle is arranged on one side of the positioning ring. When in use, the positioning ring is placed at the cornea, so that an incision can be conveniently made on the cornea by a surgical instrument, and the positioning ring can indicate the angle and length of the incision and can slide simultaneously.

Description

TECHNICAL FIELD

[0001] The utility model relates to ophthalmic operation auxiliary equipment field, especially in corneal operation positioning device. BACKGROUND

[0002] During ophthalmic operation, the cornea needs to be cut by surgical instruments at a specific position, and the cornea is part of a spherical structure, therefore, the length of the incision needs to be set as a circle, and the angle of the starting point and the ending point of the incision and the arc length of the incision are determined based on the center of the circle.

[0003] In view of the above requirements, the existing surgical auxiliary equipment adopts a barrel body similar to a handle, the barrel body is open at both ends, the lower end is placed on the cornea during use, and the upper end is used for inserting the surgical instrument to cut the corneal tissue, so that the shape of the incision can be ensured, but such auxiliary equipment lacks angle reading scales inside, and it is difficult to determine the angle and arc length of the incision during use; in addition, there is also a problem that the barrel body is too high and cannot be clearly seen during operation. SUMMARY

[0004] The utility model aims at at least one of the above technical problems in the technical field. To this end, the utility model aims at providing a device for assisting corneal incision during ophthalmic operation.

[0005] To achieve the above-mentioned purpose, the embodiment of the utility model provides a corneal operation positioning device, which comprises:

[0006] The positioning ring is a circular truncated cone with a large upper part and a small lower part, the inner wall of the positioning ring forms a plurality of protruding angle indicating elements, and the bottom of the positioning ring is protruded downward to form a plurality of anti-skid protrusions.

[0007] The angle indicating element is composed of a cylindrical body and a spherical body at the top, and the cylindrical body gradually sinks into the positioning ring from top to bottom; the exposed sizes of adjacent angle indicating elements in the positioning ring are different.

[0008] The handle is arranged on one side of the positioning ring.

[0009] According to the corneal operation positioning device provided by the embodiment of the utility model, the positioning ring is placed on the cornea during use, which facilitates the surgical instrument to make an incision on the cornea, the positioning ring can indicate the angle and length of the incision, and the positioning ring can be placed and slid at the same time.

[0010] In addition, the corneal operation positioning device provided by the above-mentioned embodiment of the utility model can also have the following additional technical features:

[0011] Optionally, the interval angle between adjacent angle indicating elements is 5°, 15° or 30°.

[0012] Optionally, the anti-skid convex points are ellipsoidal, and the long axis of the ellipsoid is arranged in the tangent direction of the bottom opening of the positioning ring.

[0013] Optionally, the handle is in an oval cross section, and the long axis of the oval is in the width direction and the short axis is in the height direction.

[0014] Optionally, the surface of the handle is formed with a notch anti-skid structure composed of a plurality of recesses. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of an angle according to an embodiment of the present application;

[0016] Figure 2 is another perspective view of an angle according to an embodiment of the present application;

[0017] Figure 3 is an enlarged view of the bottom opening of the positioning ring according to an embodiment of the present application;

[0018] Figure 4 is a perspective view of an angle according to another embodiment of the present application;

[0019] Figure 5 is another perspective view of an angle according to another embodiment of the present application.

[0020] REFERENCE NUMERALS:

[0021] Anti-skid convex points 11 of the positioning ring 1

[0022] Angle indicating element 2

[0023] Anti-skid structure 31 of the handle 3 DETAILED DESCRIPTION

[0024] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0025] The positioning ring is placed on the cornea when the present application is used, which facilitates the making of incisions on the cornea by surgical instruments, and the positioning ring can indicate the angle and length of the incision while being placed and slid.

[0026] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.

[0027] In order to better understand the above technical solutions, the exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be fully conveyed to those skilled in the art.

[0028] Figures 1 to 5 For a corneal surgery positioning device according to an embodiment of the present application, comprising:

[0029] Positioning ring 1: large at the top and small at the bottom, the inner wall of the positioning ring 1 forms a plurality of protruding angle indicating elements 2, and the bottom ring mouth of the positioning ring 1 is protruded downward to form a plurality of anti-skid protrusions 11; in use, the positioning ring 1 is placed at the corneal position, the bottom ring mouth is tightly attached to the corneal position, the entire corneal area can be seen from the top, and the surgical instrument can be inserted to contact the cornea to perform surgery;

[0030] The positioning ring 1 in the form of a circular truncated cone can also facilitate the leaning of the surgical instrument. Since the cornea is part of the eyeball and the incision is perpendicular to the corneal surface, the surgical instrument has a certain angle with the vertical line when cutting at the edge of the cornea. Therefore, the positioning ring 1 in the form of a circular truncated cone can assist in stabilizing the surgical equipment, keeping the angle relatively stable, and ensuring the regularity of the incision.

[0031] Since the present application is used under the conditions of a microscope and illumination, in order to reduce the internal reflection affecting the judgment of the surgeon, the inside of the positioning ring 1 needs to be treated to resist reflection. The following solutions can be adopted: 1. When using medical stainless steel, the surface is treated by mechanical methods such as wire drawing to reduce the formation of light spots; 2. Or use titanium alloy as the material, the surface of the titanium alloy can be treated to have a dull and non-reflective effect. This surface effect can be referred to some outdoor titanium alloy products.

[0032] The height of the positioning ring 1 is preferably between 5-7.5mm, which can be well matched with existing surgical equipment.

[0033] The anti-skid protrusions 11 of the bottom ring mouth of the positioning ring 1 are used to prevent displacement during surgical operation. The corneal surface is smooth and has a certain elasticity. How to better prevent slipping while reducing scratches on the cornea, an embodiment of the present application is to set the anti-skid protrusions 11 to be ellipsoidal, and the major axis of the ellipsoid is arranged in the tangent direction of the bottom ring mouth of the positioning ring 1. With this structure, it can be rotated in a small range during use, but it will not move.

[0034] Angle indicating element 2: composed of a cylinder and a spherical top, the cylinder gradually sinks into the positioning ring 1 from top to bottom; the exposed size of adjacent angle indicating elements 2 in the positioning ring 1 is different; in some embodiments, the interval angle between adjacent angle indicating elements 2 is 15° or 30°, with this scheme, the difficulty in identification caused by too dense scale can be reduced, and the scale can be marked as follows: taking the horizontal line as 0°, increasing the degree in the vertical direction, wherein the 15° scale is short, and one dot is used as the identification, the 30° scale is long, and two dots are used as the identification, and when reaching the 45°, the scale is as long as the 15°, but three dots are used as the identification, 60° is set according to the 30°, four dots are used as the identification, and so on, until 90°, thus the balance between the manufacturing cost and the convenience in use can be achieved. The above-mentioned dot is the spherical top of the cylinder mentioned above.

[0035] Handle 3: provided on one side of the positioning ring 1, used for holding in use. The existing handle 3 is mostly a round rod same as the ordinary surgical instrument, in use, due to the centralized mass of the whole positioning ring 1, the round rod is easy to rotate and slip when holding, and only relying on the common anti-skid measures such as knurling, concentric circle and the like structure cannot achieve good stability effect, and in order to set the knurling and the like, the handle 3 needs to be further thickened, increasing the overall structure mass.

[0036] In view of this, one scheme of the utility model is to set the handle 3 as an oval section, the long axis of the oval is the width direction, and the short axis is the height direction, with this scheme, better holding feeling can be provided without increasing the overall mass of the handle 3, and the oval section naturally has the anti-skid ability.

[0037] In some embodiments, the handle 3 surface forms an anti-skid structure 31, the anti-skid structure 31 is a notch formed by a plurality of recesses, with this anti-skid structure 31, compared with the existing structure such as knurling, the holding way of the utility model is optimized and adjusted specially, so that the instrument can not slide along the plane in the operation, avoiding the operation accidents caused by the movement of the instrument.

[0038] The above-mentioned handle 3 can also be provided with a certain inclination angle relative to the horizontal plane, and the inclination angle is preferably 120°.

[0039] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0040] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0041] In the description of the specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the specification.

[0042] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as a limitation on the utility model, and those skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A corneal surgery positioning device, characterized by: Comprising Positioning ring: a circular truncated cone with the top larger than the bottom, the inner wall of the positioning ring forms a plurality of convex angle indicating elements, the bottom of the positioning ring is convex to form a plurality of anti-skid convex points; Angle indicating element: composed of a cylinder and a spherical top, the cylinder gradually sinks into the positioning ring from top to bottom; the exposed size of adjacent angle indicating elements in the positioning ring is different; Handle: provided on one side of the positioning ring.

2. The corneal surgery positioning device according to claim 1, wherein: The interval angle between adjacent angle indicating elements is 5°, 15° or 30°.

3. The corneal surgery positioning device according to claim 1, wherein: The anti-skid convex points are ellipsoidal, and the long axis of the ellipsoid is arranged in the tangent direction of the bottom of the positioning ring.

4. The corneal surgery positioning device according to claim 1, wherein: The handle is elliptical in cross section, and the long axis of the ellipse is in the width direction and the short axis is in the height direction.

5. The corneal surgery positioning device according to claim 1, wherein: The surface of the handle forms a notch anti-skid structure composed of a plurality of recesses.

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