A centralizer for lens implant surgery

Abstract

The application relates to the technical field of medical devices, and provides a center positioner for lens implantation surgery, which comprises a center positioning ring, the inner diameter of the center positioning ring is 6.8 mm, the outer diameter is 7.8 mm, a scale is arranged on the outer ring of the center positioning ring, a lens placing area is arranged in the center positioning ring, the optical area diameter of the lens is 6.5 mm, and the optical area diameter is matched with the inner diameter of the center positioning ring, and the outer diameter of the center positioning ring is matched with a corneal cap, so that when the diameter of the corneal cap is 8.1 mm, the center of the lens, the center of the center positioning ring and the center of the corneal cap are aligned. The application reduces the surgery time, reduces the possibility of eccentricity and the surgery risk.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically to a central locator for lens transplantation surgery. Background Technology

[0002] With the development of ophthalmic surgical techniques, lenticule transplantation has become an important means of treating various eye diseases. During the procedure, accurate central localization directly affects the surgical outcome and the patient's visual quality. Currently, commonly used localization methods in clinical practice have the following problems: 1. Traditional positioning devices have complex structures and are cumbersome to operate, increasing surgical time; 2. The accuracy of positioning depends on the doctor's experience and is prone to bias. 3. The need for repeated adjustments during the surgery increases the surgical risk; 4. Existing positioning devices cannot simultaneously ensure precise alignment between the center of the lens and the center of the cornea. Utility Model Content

[0003] To help solve the above-mentioned technical problems, this application provides a central locator for lens transplantation surgery, which adopts the following technical solution: A central locator for lenticule transplantation surgery, including A central positioning ring has an inner diameter of 6.8 mm and an outer diameter of 7.8 mm. The outer ring of the central positioning ring has a scale. The central positioning ring has a lens placement area inside. The optical area of ​​the lens has a diameter of 6.5 mm and matches the inner diameter of the central positioning ring. The outer diameter of the central positioning ring matches the corneal cap so that when the diameter of the corneal cap is 8.1 mm, the center of the lens, the center of the central positioning ring, and the center of the corneal cap are aligned.

[0004] Preferably, the outer ring of the central positioning ring has a bevel to position the central positioning ring with the corneal cap and ensure that the central positioning ring is in full contact with the corneal surface.

[0005] In summary, this application reduces surgical time and lowers the likelihood of eccentricity and surgical risks. Attached Figure Description

[0006] Figure 1 This is a schematic diagram illustrating the application of a central locator for lens transplantation surgery according to this application; Figure 2 This is a schematic diagram of one embodiment of a central positioning ring for lens transplantation surgery according to this application.

[0007] Reference numerals: 1-corneal cap; 2-lens placement area; 3-central positioning ring. Detailed Implementation

[0008] The present application will be further described below with reference to the accompanying drawings. The structure and principle of the present application are very clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0009] Figure 1 This is a schematic diagram illustrating the application of a central locator for lens transplantation surgery according to this application. Figure 2 This is a schematic diagram of one embodiment of a central locator for lens transplantation surgery according to this application.

[0010] The center locator of this application includes a center locating ring 3 with an inner diameter of 6.8 mm and an outer diameter of 7.8 mm. The outer ring of the center locating ring 3 is marked with graduations. The center locating ring 3 has a lens placement area 2 inside, with an optical area diameter of 6.5 mm that matches the inner diameter of the center locating ring 3. The outer diameter of the center locating ring 3 matches the corneal cap 1, so that when the diameter of the corneal cap 1 is 8.1 mm, the center of the lens, the center of the center locating ring 3, and the center of the corneal cap 1 are aligned.

[0011] The outer ring of the central positioning ring 3 is provided with a bevel to position the central positioning ring 3 with the corneal cap and to ensure that the central positioning ring 3 is in full contact with the corneal surface.

[0012] The following steps are required when working: 1. Preoperative preparation: Routine disinfection Confirm the integrity of the locator Check dimensional parameters 2. Surgical procedure steps: Place the locator in the center of the cornea. Rapid alignment using the principle of concentric circles Fixed position of locator Lens placement 3. Precautions: Maintain aseptic technique during the procedure Ensure the locator makes full contact with the corneal surface Avoid excessive pressure In summary, this application has the following advantages: 1. Innovative concentric circle design Achieve alignment of the lens center, the locator center, and the corneal stromal bed center. Greatly improves positioning accuracy Reduce the difficulty of doctors' operation 2. Precise dimensional design A proper ratio of inner and outer diameters ensures optimal visual effect. The optical zone design conforms to the physiological characteristics of the human eye. Scientific planning of corneal flap size reduces postoperative complications. 3. Ease of operation Complete center positioning in one go Reduce the number of adjustments shorten the operation time Reduce surgical risks 4. Clinical application value Improve surgical precision Improve postoperative visual quality Reduce the incidence of postoperative complications Improve the success rate of surgery.

Claims

1. A central locator for lens transplantation surgery, characterized in that... include A central positioning ring has an inner diameter of 6.8 mm and an outer diameter of 7.8 mm. The outer ring of the central positioning ring has a scale. The central positioning ring has a lens placement area inside. The optical area of ​​the lens has a diameter of 6.5 mm and matches the inner diameter of the central positioning ring. The outer diameter of the central positioning ring matches the corneal cap so that when the diameter of the corneal cap is 8.1 mm, the center of the lens, the center of the central positioning ring, and the center of the corneal cap are aligned.

2. A central locator for lens transplantation surgery as described in claim 1, characterized in that... The outer ring of the central positioning ring has a bevel to position the central positioning ring with the corneal cap and ensure that the central positioning ring is in full contact with the corneal surface.

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