9 results about "Anterior capsule" patented technology

The utility model provides a lens capsular bag anchoring device. The lens capsular bag anchoring device comprises an anchoring body and an anchoring arm. The anchoring body is in an M shape, the two anchoring arms are connected to the two opposite ends of the anchoring body respectively, and fixing rings are arranged at the ends, away from the anchoring body, of the anchoring arms. In the operation process, a suture is used for knotting at the V-shaped tip end of the anchoring body, and the other end of the suture penetrates out of the sclera of the ciliary sulcus and is knotted outside the eye to be fixed between sclera layers. The middle V-shaped portion of the anchoring body is arranged in front of an anterior capsule, the two protrusions at the upper end of the M shape pull the edge of an anterior capsule ring, the anchoring arm is implanted into a capsule bag, the equator of the capsule bag is jacked, pressed and pulled, the crystal capsule bag is made to restore the shape, and when an operation is finished, the anchoring arm can be permanently fixed to the sclera, and the IOL and the capsule bag are prevented from deviating together. Secondly, for a patient with dislocation of the IOL-capsular complex, the IOL-capsular complex can be pulled to the normal position through the anchoring device and fixed to the sclera.

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

Apparatus (100) for use with a motion source that generates reciprocating linear motion. The apparatus includes a cutting ring (120) comprising a sharp cutting edge shaped and sized to engage an anterior lens capsule of the eye (20) and a longitudinal-motion member (150) coupled to the cutting ring, and that is configured to be coupled to the motion source, such that the motion source imparts reciprocating linear motion to the longitudinal motion member. The apparatus additionally includes a motion-conversion mechanism coupled to the longitudinal-motion member and to the cutting ring and configured to convert the reciprocating linear motion of the longitudinal-motion member into back-and-forth rotational motion of the cutting ring to create a circular aperture in the anterior capsule of the eye by the cutting ring. Other applications are also described.

A capsulorhexis device is inserted into an incision site of a cornea to make an incision in an anterior capsule surrounding a crystalline lens. The capsulorhexis device includes a loop having elasticity and conductivity; a moving member having one end fixed and coupled to the loop; an insertion guide configured so that, while the incision is being made in the crystalline lens capsule, a front end thereof is inserted into the incision site of the cornea; and a housing having one end coupled to a rear end of the insertion guide, wherein the loop is housed in the housing and, to make the incision in the crystalline lens capsule, slides in the housing together with the moving member to pass through the insertion guide and be deployed into an anterior chamber of the eye.

Surgical scissors for incising anterior capsule of lens include first and second levers extending in front-rear direction and rotation shaft rotatably connecting first and second levers to each other. First lever includes: first handle formed at rear portion with reference to rotation shaft; first blade having first non-cutting part formed at front portion with reference to rotation shaft and extending forward, and first cutting part protruding in one side direction crossing front-rear direction and up-down direction from front end of first non-cutting part. Second lever includes: second handle formed at rear portion with reference to rotation shaft and capable of being spaced downward from first handle; second blade having second non-cutting part formed at front portion with reference to rotation shaft and extending forward, and second cutting part protruding in one side direction from front end of second non-cutting part to be in contact with first cutting part.

The application discloses a posterior chamber type artificial lens with a lens and a method for improving stability and communication capacity of the artificial lens. The artificial lens comprises an optical area and a supporting part, the supporting part is arranged outside the optical area, and a circular central hole is arranged in the center of the optical area; the supporting part comprises a closed haptic and haptic feet arranged outside the closed haptic, a haptic hole is arranged on one side of the closed haptic close to the optical area, an elliptical water guide hole is arranged on the closed haptic close to the haptic feet, the haptic feet are four in number, and positioning holes are arranged on the haptic feet. The elliptical water guide hole close to the haptic feet of the artificial lens can disperse pressure, reduce axial displacement of the artificial lens, keep the position relatively constant, and has high stability; the artificial lens has good communication capacity, the elliptical water guide hole is arranged between an iris and a lens anterior capsule, can make aqueous humor communicate smoothly, reduce contact with the iris and the anterior capsule, and reduce deposition of pigments on the surface of the artificial lens and in the chamber angle. The artificial lens can effectively prevent cataract, pupil block or angle closure glaucoma and the like.

A capsulotomy tool having an end effector / two-part oscillating perforating element for creating a controlled automated or assisted precision shaped opening in the anterior capsule. The capsulotomy tool has a shaft with a proximal end and a distal end with an end effector adjacent the distal end of the shaft. In use within an eye, the end effector is adapted and configured for controlled cutting of a surface an anterior capsule of the eye. There is also an actuator coupled to the proximal end of the shaft. The actuator is specifically adapted to drive the shaft so as to produce a controlled longitudinal motion of the perforating end effector. The controlled motion is adapted and configured for directing the controlled cutting via robotic surgical system to create an opening in an anterior capsule of the eye along a cutting path, based on image-guidance data received from an imaging system.

The utility model relates to a drag hook implanting device which comprises an injector and an implant prearranged in the injector. The pushing injector comprises a needle cylinder body, a puncture needle fixed to the end of the needle cylinder body and a pushing piston arranged in the needle cylinder body in a sliding mode. The implant comprises a drag hook used for hooking an anterior capsule opening of a lens capsular bag, a suture line connected with the drag hook and a straight needle connected with the tail end of the suture line. Wherein the far end of the pushing piston is provided with a pushing body capable of extending into the puncture needle, the implant is preset in the mode that the drag hook is arranged in the puncture needle through the pushing body, the suture is reserved in the needle cylinder body, the straight needle is detachably arranged on the pushing piston, and the straight needle is arranged in the needle cylinder body. The pushing body is used for pushing the drag hook to the outside of the puncture needle. Through the arrangement, the operation convenience is improved, and meanwhile the risk of damaging the intraocular structure is reduced.

Disclosed herein are intraocular lenses having features that counteract the effects of anterior capsular constriction and methods for implanting such intraocular lenses. In some embodiments, an intraocular lens may include an optic fluid chamber and a tab having a tab fluid lumen in fluid communication with the optic fluid chamber. The tab fluid cavity may include a thickened front portion such that a thickness of a tab front wall of the tab is greater than a thickness of a tab back wall. In addition, the intraocular lens may include one or more support posts disposed within the loop fluid lumen. The support posts and / or thickened anterior portions of the tabs may maintain the shape of the fluid lumen of the tabs in response to forces applied to the tabs due to contraction of the anterior capsule.