Ruler for ophthalmologic operation

Abstract

The embodiment of the utility model relates to a ruler for an ophthalmologic operation. The ruler comprises a measuring ruler, a first measuring rod, a second measuring rod and a moldable positioning part, the first measuring rod comprises a first measuring part, a first reading part and a first connecting part; the first connecting part is arranged between the first measuring part and the first reading part; the second measuring rod comprises a second measuring part, a second reading part and a second connecting part; the second connecting part is arranged between the second measuring part and the second reading part; the first measuring rod and the second measuring rod are hinged through the first connecting part and the second connecting part; the first measuring part and the second measuring part are of an opening and closing structure with a tip opening; the first reading part and the second reading part are of an angle-adjustable V-shaped split structure. One end of the measuring scale is fixedly connected with the end part of the first reading part; the end part of the second reading part is a pointed end and points to the scales of the measuring ruler; and the shapeable positioning part is fixedly connected with the tip of the second measuring part.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a ruler for ophthalmic surgery. Background Art

[0002] During strabismus surgery involving eye muscles, ophthalmic surgical rulers are often used for measurements. The delicate structure of the eye places high demands on the accuracy of various intraoperative measurements. For example, during strabismus surgery, measurement accuracy must be below the millimeter level, and rotation must not occur, otherwise adverse complications such as rotational diplopia and vertical strabismus may occur.

[0003] The insertion of a muscle is not a point-like structure, but an area of attachment. The traditional ophthalmic ruler currently used can only be used for measurement between two points, and rotation is very likely to occur during measurement. After measurement, a ruler is needed to locate the new muscle fixation point, and the ruler still fixes a point. Therefore, the width of the postoperative suture can only be based on the surgeon's estimate of the width of the muscle insertion. It is difficult to ensure that the width of the new muscle insertion is completely consistent with the width of the original insertion after surgery. Often, due to the small width of the new insertion, a "suspension" effect is caused, resulting in overcorrection after surgery. In order to prevent the above situation, the surgeon often performs repeated measurements, which also prolongs the operation time.

[0004] Therefore, preventing the rotation and displacement of the ruler becomes a problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to address the defects of the existing technology and provide a ruler for ophthalmic surgery. By arranging a plastic positioning component and a double-fulcrum measuring structure at the tip of the measuring part, the rotation and displacement of the ruler can be effectively prevented, the accuracy of ophthalmic surgery can be improved, and thus the surgical efficiency can be improved.

[0006] To achieve the above-mentioned object, the present invention provides a ruler for ophthalmic surgery, comprising a measuring ruler, a first measuring rod, a second measuring rod, and a plastic positioning component; the first measuring rod comprises a first measuring portion, a first reading portion, and a first connecting portion; the first connecting portion is disposed between the first measuring portion and the first reading portion; the second measuring rod comprises a second measuring portion, a second reading portion, and a second connecting portion; the second connecting portion is disposed between the second measuring portion and the second reading portion;

[0007] The first measuring rod and the second measuring rod are hingedly connected by the first connecting portion and the second connecting portion; the first measuring portion and the second measuring portion are an open-close structure with a tip opening; the first reading portion and the second reading portion are an adjustable angle "V"-shaped split structure;

[0008] One end of the measuring ruler is fixedly connected to the end of the first reading portion; the end of the second reading portion is pointed and points to the scale of the measuring ruler;

[0009] The shapeable positioning component is fixedly connected to the tip of the second measuring part.

[0010] Furthermore, the tip of the first measuring portion has a double-support point measuring structure.

[0011] Furthermore, the shape of the shapeable positioning component includes an arc shape and a straight line shape.

[0012] Furthermore, the first connecting portion and the second connecting portion are provided with a damping mechanism at the hinge.

[0013] Furthermore, the ophthalmic surgical ruler further includes a limit rod;

[0014] One end of the limiting rod is fixedly connected to the first reading part, and the other end passes through the second reading part, and limits the tip position of the second reading part through an adjustable nut.

[0015] Furthermore, one end of the support leg of the dual-support point measurement structure can be rotatably fixed to one side of the first measuring part.

[0016] Furthermore, the shapeable positioning component is detachably fixedly connected to the tip of the second measuring portion.

[0017] Furthermore, the shapeable positioning component is detachably fixedly connected to the tip of the second measuring portion via a thread.

[0018] Furthermore, the support leg of the dual-point measurement structure is a retractable structure; and the opening angle formed by the support leg and the tip of the first measuring part is adjustable.

[0019] Furthermore, the support foot of the double-support point measurement structure is arc-shaped.

[0020] An embodiment of the utility model provides a ruler for ophthalmic surgery, which effectively prevents the ruler from rotating and shifting by providing a plastic positioning component and a double-fulcrum measuring structure at the tip of the measuring part, thereby improving the accuracy of ophthalmic surgery and thus improving the efficiency of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of a ruler for ophthalmic surgery provided by an embodiment of the utility model;

[0022] FIG2( a ) is a schematic diagram of a retractable positioning component of an ophthalmic surgical ruler according to an embodiment of the present invention;

[0023] FIG2( b ) is a second schematic diagram of the retractable positioning component of the ophthalmic surgical ruler provided by an embodiment of the present invention;

[0024] Figure 3 This is a partial schematic diagram of the double-fulcrum measurement structure of the ophthalmic surgery ruler provided by an embodiment of the utility model in the open state. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0026] Figure 1 A schematic diagram of the structure of a ruler for ophthalmic surgery provided by an embodiment of the utility model is shown in FIG. Figure 1 As shown, the ruler includes a measuring ruler 1, a first measuring rod, a second measuring rod and a plastic positioning component 2; the first measuring rod includes a first measuring part 31, a first reading part 32 and a first connecting part 33; the second measuring rod includes a second measuring part 41, a second reading part 42 and a second connecting part 43.

[0027] The first connecting portion 33 is positioned between the first measuring portion 31 and the first reading portion 32; the second connecting portion 43 is positioned between the second measuring portion 41 and the second reading portion 42. The first and second measuring rods are hingedly connected by the first and second connecting portions 33, 43. The first and second measuring portions 31, 41 have an open-close structure with a pointed opening; the first and second reading portions 32, 42 have a V-shaped split structure with adjustable angles.

[0028] In a possible implementation, the first connecting portion 33 and the second connecting portion 43 are provided with a damping mechanism at the hinge, so as to maintain the relative rotational position of the first reading portion 32 and the second reading portion 42 during the measurement process.

[0029] One end of the measuring ruler 1 is fixedly connected to the end of the first reading portion 32; the end of the second reading portion 42 is pointed and points toward the scale of the measuring ruler 1. The 0 scale of the measuring ruler 1 is set at the outermost end. When measuring, the second reading portion 42 is pushed, and the "V"-shaped angle formed by the first reading portion 32 and the second reading portion 42 gradually decreases. When the angle begins to decrease, the first measuring portion 31 and the second measuring portion 41 begin to move together simultaneously, and the tip openings of the first measuring portion 31 and the second measuring portion 41 open. The tip of the second reading portion 42 slides from the 0 scale along the direction of increasing scale of the measuring ruler, thereby reading the corresponding reading measured by the tip opening. In one possible embodiment, the measuring ruler 1 is arc-shaped, with the curvature pointing toward the hinge. The change in the position and size measured by the first measuring portion 31 and the second measuring portion 41 is negatively correlated with the change in the angle formed by the first reading portion 32 and the second reading portion 42.

[0030] The retractable positioning component 2 is fixedly connected to the tip of the second measuring portion 41. Figure 2(a) is a schematic diagram of the retractable positioning component of an ophthalmic surgical ruler provided in an embodiment of the present invention, and Figure 2(b) is a schematic diagram of the retractable positioning component of an ophthalmic surgical ruler provided in an embodiment of the present invention. Optionally, as shown in Figures 2(a) and 2(b), the retractable positioning component 2 is made of a plastic material and has both an arcuate and a straight shape. When in an arcuate shape, it facilitates positioning at the limbus during measurement. Compared to using only a single measurement point, the arcuate shape better adapts to the limbus shape, making measurement more accurate and preventing displacement and rotation. When in a straight shape, it facilitates aligning with the attachment points on both sides of the muscle when locating the new end of the muscle. Optionally, the retractable positioning component 2 is removably fixedly connected to the tip of the second measuring portion 41. When the retractable positioning component 2 needs to be replaced due to aging or other reasons, it can be removed for replacement. Further optionally, the plastic positioning component 2 is detachably fixedly connected to the tip of the second measuring part 41 by a thread, wherein the side of the tip of the second measuring part 41 has a screw hole, and a stud is provided in the middle of the plastic positioning component 2, which is screwed into the screw hole and pressed against to fix the plastic positioning component 2 to the tip of the second measuring part 41.

[0031] In an optional solution, the ophthalmic surgical ruler also includes a limit rod 5; one end of the limit rod 5 is fixedly connected to the first reading part 32, and the other end passes through the second reading part 42, and the tip position of the second reading part 42 is limited by an adjustable nut 6.

[0032] Specifically, a spring assembly is provided at the hinged joint between the first connecting portion 33 and the second connecting portion 43. This assembly presses the second reading portion 42 toward the adjusting nut 6, thereby limiting its displacement and ensuring a stable measured distance. To measure, the adjusting nut 6 is first loosened, and then the second reading portion 42 is rotated so that its tip is aligned with the desired scale on the measuring ruler 1.

[0033] In yet another alternative, Figure 3 A partial schematic diagram of the double-support measurement structure of the ophthalmic surgery ruler provided by the embodiment of the utility model in the open state, combined with Figure 1 and Figure 3As shown, the tip of the first measuring section 31 has a dual-pivot measurement structure. Optionally, the support foot of the dual-pivot measurement structure is arc-shaped and serves only for support and does not participate in measurement. This arc-shaped support foot does not sting the skin around the eye when in contact with it. In one possible embodiment, one end of the support foot 7 of the dual-pivot measurement structure is rotatably fixed to a surface of the first measuring section 31. Optionally, the support foot 7 of the dual-pivot measurement structure is retractable, optionally a spiral retractable structure. By adjusting the length of the support foot 7, the support foot 7 can adapt to changes in the contours around the eye and provide more stable support. Optionally, the opening angle formed by the support foot 7 and the tip of the first measuring section 31 is adjustable using a locknut. The locknut is loosened to adjust the angle and tightened when the desired angle is reached. The adjustable opening angle facilitates repositioning of the muscle attachment points on both sides, preventing rotation and achieving more precise positioning. The rotatable end of the support foot 7 is extended from its starting position to the desired angle and locked, forming the dual-pivot measurement structure.

[0034] An embodiment of the utility model provides a ruler for ophthalmic surgery, which effectively prevents the rotation and displacement of the ruler by providing a plastic positioning component and a double-fulcrum measuring structure at the tip of the measuring part, thereby improving the accuracy of ophthalmic surgery and thus improving the surgical efficiency.

[0035] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to fixed, removable, or integral connections; "connected" can refer to direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0036] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0037] Throughout this specification, terms such as "a specific embodiment," "some embodiments," or "an embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A ruler for ophthalmic surgery, characterized in that: The measuring rod comprises a measuring ruler, a first measuring rod, a second measuring rod, and a shapeable positioning component; the first measuring rod comprises a first measuring portion, a first reading portion, and a first connecting portion; the first connecting portion is disposed between the first measuring portion and the first reading portion; the second measuring rod comprises a second measuring portion, a second reading portion, and a second connecting portion; the second connecting portion is disposed between the second measuring portion and the second reading portion; The first measuring rod and the second measuring rod are hingedly connected by the first connecting portion and the second connecting portion; the first measuring portion and the second measuring portion are open-close structures with tip openings; the first reading portion and the second reading portion are "V"-shaped forked structures with adjustable angles; One end of the measuring ruler is fixedly connected to the end of the first reading portion; the end of the second reading portion is pointed and points to the scale of the measuring ruler; The shapeable positioning component is fixedly connected to the tip of the second measuring part.

2. The ophthalmic surgical ruler according to claim 1, characterized in that: The tip of the first measuring portion has a double-support point measuring structure.

3. The ophthalmic surgical ruler according to claim 1, characterized in that: The shape of the shapeable positioning component includes an arc shape and a straight line shape.

4. The ophthalmic surgical ruler according to claim 1, characterized in that: The first connecting portion and the second connecting portion are provided with a damping mechanism at the hinge.

5. The ophthalmic surgical ruler according to claim 1, characterized in that: The ophthalmic surgical ruler further includes a limit rod; One end of the limiting rod is fixedly connected to the first reading part, and the other end passes through the second reading part, and limits the tip position of the second reading part through an adjustable nut.

6. The ophthalmic surgical ruler according to claim 2, characterized in that: One end of the support leg of the double-support point measurement structure can be rotatably fixed to one side of the first measurement part.

7. The ophthalmic surgical ruler according to claim 1, characterized in that: The shapeable positioning component is detachably fixedly connected to the tip of the second measuring portion.

8. The ophthalmic surgical ruler according to claim 7, characterized in that: The shapeable positioning component is detachably fixedly connected to the tip of the second measuring portion via a thread.

9. The ophthalmic surgical ruler according to claim 6, characterized in that: The support leg of the dual-support point measurement structure is a retractable structure; the opening angle formed by the support leg and the tip of the first measuring part is adjustable.

10. The ophthalmic surgical ruler according to claim 2, characterized in that: The supporting foot of the double-support point measurement structure is in an arc shape.

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