12 results about "Capsular bag" patented technology

The application discloses a light treatment equipment for after-cataract, and belongs to the technical field of medical devices. The light treatment equipment adjusts the emission direction of treatment light by using a light guide module to make the treatment light project to an intraocular target area. The light shaping module is used to shape the emission spot of the treatment light to match the annular anatomical structure of the equatorial part of the lens capsule bag. During the cataract intraocular lens implantation surgery, the light treatment equipment emits treatment light to precisely irradiate the intraocular target area, thereby inducing the apoptosis of epithelial cells in the anterior subcapsular area and the equatorial area of the lens in the intraocular target area. The light treatment equipment does not cause damage to the surrounding tissue structure, can greatly reduce complications, and can effectively prevent and effectively and precisely treat after-cataract.

The present application provides a method for in vitro purified corneal limbal stem cells to be transdifferentiated into lens spherules, specifically, the present application inoculates corneal limbal stem cells onto a culture plate containing a Matrigel glue layer, and cultures the corneal limbal stem cells in a culture system containing Y-27632 additives in LSCM culture solution, so that lens spherule organoids can be obtained. The method of the present application can realize the rapid transdifferentiation of corneal limbal stem cells into lens spherules, so that they can be implanted into the capsular bag as seed cells for in situ regeneration of the lens.

This invention discloses an implantable capsular support hook structure for implantation inside the lens capsular bag of the eye and extending to the anterior capsular opening. The support hook structure includes a central portion and arc-shaped wings formed on both sides of the central portion. The arc-shaped wings extend towards both sides of the central portion and are arc-shaped in their entirety. The connection between the arc-shaped wings and the central portion forms an angle, and the central portion and the corresponding arc-shaped wing on one side are used to clamp the anterior capsular membrane. This invention's support hook structure, through improved material, possesses strong pulling force and support, and also has a certain degree of elasticity, making it less prone to dislodgement. Utilizing the arc-shaped wings on both sides, it can pull the capsular bag to maintain its anatomical position in the corresponding lens dislocation area, and can construct a large-area lens cap with a certain arc length. When used in surgery, it can reduce the serious complication of vitreous prolapse during surgery.

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 a packaging assembly (1) comprising a packaging piece (2) and an injector (3) configured to insert an intraocular lens (4) into a capsular bag of an eye, wherein the injector comprises an injector housing (9) having an injector opening (5) via which the intraocular lens can be moved out of the injector in an insertion direction (6) of the injector, a proximal end (15) arranged opposite the injector opening, and a piston (7) which is mounted longitudinally movably in the injector housing in the insertion direction and which is configured to move the intraocular lens in a direction towards the injector opening, wherein the packaging piece has a transport state and a use state and also a packaging piece distal portion (21) and a packaging piece proximal portion (22), in the transport state the arrangement of which relative to the packaging piece distal portion is different from the use state, wherein the packaging piece comprises a drive (20) which is attached to the packaging piece distal portion and which is coupled to the piston such that by moving the injector housing relative to the packaging piece distal portion in a direction opposite the insertion direction, the piston can be moved in the direction of the injector opening, wherein in the transport state, the movement of the injector housing relative to the packaging piece distal portion in a direction opposite the insertion direction is limited by the packaging piece proximal portion.

FIELD: medicine; ophthalmology.SUBSTANCE: after performing phacoemulsification, linear incisions are made in the anterior capsule from the edge of the capsulorhexis to the vault of the capsular bag in opposite meridians, forming a 1 mm wide flap. Next, the flap is removed and pinched in the previously formed coloboma of the iris. In a particular case, if necessary, the flap is additionally pinched in the paracentesis, after which the paracentesis is sutured.EFFECT: reliable fixation, a sufficient level of tension and anatomically correct position of the IOL, and preventing its rotation, ensuring the absence of refractive shift.2 cl, 10 dwg, 2 ex

This application relates to the field of intelligent intraocular lens (IOL) selection, specifically disclosing an intelligent IOL selection system for cataract surgery based on ocular bioparameters. The system is not limited to the acquisition of traditional static geometric data such as axial length and corneal curvature, but further utilizes a deep convolutional neural network to extract texture features and perform dimensionality reduction mapping on anterior segment tomographic images, thereby resolving the capsular bag compliance feature vector characterizing the biomechanical properties of the ocular soft tissue. Based on this, the geometric parameters of the patient's eye, capsular bag compliance features, and the mechanical and physical properties of the IOL are combined. By introducing a physical constraint mechanism, the mechanical equilibrium state after lens implantation is simulated, thus accurately predicting the effective lens position. This effectively addresses the fitting challenges of non-standard eyeballs or special lens models, significantly improving the accuracy and stability of postoperative refractive prediction.

An intraocular lens (IOL) for implantation within a capsular bag of a patient's eye comprises an optical structure and a haptic structure. The optical structure comprises a planar member, a plano convex member, and a fluid optical element defined between the planar member and the plano convex member. The fluid optical element has an optical power. The haptic structure couples the planar member and the plano convex member together at a peripheral portion of the optical structure. The haptic structure comprises a fluid reservoir in fluid communication with the fluid optical element and a peripheral structure for interfacing to the lens capsule. Shape changes of the lens capsule cause one or more of volume or shape changes to the fluid optical element in correspondence to deformations in the planar member to modify the optical power of the fluid optical element.