8 results about "Intra ocular lens" patented technology

The invention relates to a trunking fixed intraocular lens and an installation method thereof, a wire clamp and a clamping assisting device, the trunking fixed intraocular lens comprises an optical part, the optical part is a columnar optical element with a certain thickness, the side surface of the optical part is provided with a trunking in which a suture can be clamped and embedded, the trunking is locally or completely arranged along the circumference of the side surface of the optical part, and the optical part is a cylindrical optical element. According to the intraocular lens, the suture is clamped and embedded into the intraocular lens through the line grooves in the upper edge and the lower edge of the optical part, the knotless side of the suture penetrates through and is fixed to the sclera face below the conjunctiva, the other side of the suture penetrates through and is directly fixed to the sclera face below the conjunctiva in a line clamp mode, and the fixing mode of the intraocular lens is simplified; and the fixing of the intraocular lens is firmer due to the wire slot type fixing.

The invention relates to an injector (20) for inserting an intraocular lens (1) into an eye (10), having an injector axis (26), an injector body (41) delimiting a folded chamber (21) and having an injector tip (22) with an opening (23), and having a plunger (42), and a plunger arranged longitudinally displaceably in the injector body and configured to deliver the intraocular lens from the folding chamber (21) into the injector tip (22) and then out of the injector via the opening (23) by movement of the plunger in an insertion direction (40) of the injector, the injector tip is beveled in the region of the opening (23) by the injector tip having an end face (27) which directly adjoins the opening and the normal of which encloses an end face angle with the injector axis which differs from 0 DEG, the injector tip having at least one helical groove (27) on the inner wall thereof, the at least one helical groove is configured to pivot the intraocular lens relative to the injector axis in an injector circumferential direction (44) when the intraocular lens passes through the injector tip.

The utility model relates to the field of intraocular lenses, and provides an intraocular lens structure with an adjustable focal length, which comprises a support arranged in a lens capsular bag to support the lens capsular bag to form an adjusting space of an intraocular lens; the artificial muscle is arranged adjacent to the inner diameter of the stent, the first end of the artificial muscle is connected to the inner edge of the stent, and the artificial muscle is controllably and electrically bent towards the axial direction of the eye axis; and the biconvex lens is arranged at the central position of the bracket, is connected with the second end of the artificial muscle, is dragged by the artificial muscle, is suspended in the lens capsular bag, and is controllably dragged by the artificial muscle to move in the axial direction of the eye axis in the adjusting space. According to the utility model, the focal length adjustment is more accurate and simpler, and the accurate adjustment of the bending amplitude of the artificial muscle can be realized by adjusting the voltage application range and the voltage on the artificial muscle, so that the visual effect of a user is improved.

The present invention provides an innovative system for correcting aphakia in the absence of a natural capsular bag. It comprises a foldable artificial capsular bag made of biocompatible material, traversed by polypropylene 6-0 threads extended by thin pliable needles, allowing stable and precise scleral fixation. A specialized injector equipped with a cartridge having a single longitudinal opening facilitates insertion by positioning the threads without overlapping. This cartridge closes firmly after folding, ensuring stability during injection, while being compatible with standardized injectors. An ergonomic intraoperative stabilization headband, positioned on the forehead of the patient, holds the injector in place by virtue of inverted supports, improving surgical precision and reducing unnecessary manipulations. This system simplifies surgery, reduces complications and optimizes the visual results.

The invention relates to the field of high-molecular polymerization, in particular to a multifunctional polymer for synthesizing an artificial lens material as well as a preparation method and application of the multifunctional polymer. The multifunctional polymer for synthesizing the artificial lens material, provided by the invention, is used as a polymer type multifunctional cross-linking agent for preparing an artificial lens, so that the artificial lens with low flash density can be obtained, and the multifunctional polymer has high refractive index, low glass transition temperature and good biocompatibility; if a combination of a specific copolymerization unit and a copolymerization unit derived from glycidyl (meth) acrylate or a derivative thereof is adopted, the synthesized intraocular lens material has better performance, and the sparkling density can be reduced to dozens of even 0 / mm < 2 >. The polymer is prepared in a controllable polymerization mode, the multifunctional cross-linking agent with a rich structure is easy to obtain, and the synthesis method is free of small molecule byproducts, simpler, more convenient, atom-economical and environment-friendly.

An intraocular lens capsule bag comprises: a capsule bag body, which is a flexible and foldable bag body with a capsule bag opening; a capsule bag support and fixing structure, which comprises a first memory alloy body and a second memory alloy body; the first memory alloy body and the second memory alloy body penetrate the capsule bag body; when the intraocular lens capsule bag is implanted, the first memory alloy body and the second memory alloy body surround an annular structure, and the annular structure is located in the capsule bag body to expand the capsule bag body, so that the capsule bag body can load an intraocular lens; when the intraocular lens capsule bag is in a push injection state, the first memory alloy body and the second memory alloy body are straightened into a linear structure, and the capsule bag body is wound on the linear structure. The intraocular lens capsule bag is used for implanting intraocular lenses.

This invention is Preloaded An intraocular lens implantation system is disclosed, comprising: a barrel; Plunger , Push knob , and cartridge and cartridge An introduction passage is provided in the ocular lens, and a mounting groove for accommodating an intraocular lens is provided in the introduction passage, and a removable lens limiting member is provided in the mounting groove, and the lens limiting member includes a limiting plate, and the limiting plate Plunger In the direction of movement Plunger A stopper is provided to prevent the extension of the restricting plate into the introduction passage. Plunger A straight prevention support pillar is provided on the side in the direction of movement of the Preloaded The intraocular lens implantation system integrates rotation and thrust, has high implantation accuracy, a limiting plate prevents the lens from inverting, and a stopper and straightness prevention support column prevent the front loop from coming out straight. When the intraocular lens is implanted, the two loops hold the optical region and maintain a position where it is covered above it, preventing deformation of the intraocular lens and ensuring its position is stable. It is also easy to operate and efficient.

The present application relates to a kind of bionic human eye vision system, belong to the cross-disciplinary technical field of biomedical and optics.The whole system is placed on unified optical platform, including white light source, linear motorized translation stage, observed target, band-pass filter, achromatic lens, polaroid, electrically controlled diaphragm, artificial lens, scanning lens, two-dimensional galvanometer, beam splitter, beam quality analyzer, full mirror, lens, high-sensitivity photodetector and computer.The advantage is novel structure, through high-sensitivity detector and feedback control circuit can realize automatic adjustment system light quantity size, prevent overexposure, through adjusting artificial lens and two-dimensional galvanometer can realize detecting different distance, different angle object, so as to simulate the basic function of human eye, can gather and process image in complex environment.