RU82549U1 - IN-CAPSULE RING - Google Patents

Abstract

An intracapsular ring containing support elements in the form of an open ring, characterized in that it additionally contains two arcs symmetrical with respect to the center of the annular support element, one of the ends of each arc is connected with the annular support element, and their free ends are diametrically opposed to the center of the annular support element while the arcs are bent to one side by an angle lying in a plane perpendicular to the plane of the annular supporting element in the interval from 2 to 4 °.

Description

The utility model relates to the field of ophthalmic surgery.

It is known "Device for phacoemulsification of complicated cataracts" according to the patent of the Russian Federation 64054 IPC A61F 9/007 from 10.16.2006. A device for phacoemulsification of complicated cataracts, containing an open ring of elastic material placed in a capsular bag. The ring is connected by a vertical connection with an additional split ring placed in the anterior chamber of the eye and made of elastic material with at least three loop-curved retainers of the pupil edge of the iris.

However, this device has significant disadvantages: a rather high difficulty in implantation, as well as the presence of fixation of a part of the device in the anterior chamber in the presence of a rigid connection with its other part installed in the capsule bag, which leads to insufficient stability of the position of the entire device.

The closest analogue is “A device for expanding and stabilizing a capsule bag” according to the patent of the Russian Federation No. 22873, IPC A61F 9/00 dated 12/14/2001. A device for expanding and stabilizing a capsule bag made of a biocompatible polymer material in the form of an open ring. It additionally contains inside the ring two diametrically located arches with ringlets with a diameter of 2 mm at the free ends, while one of the arches is bent towards the rupture of the ring, and the other in the opposite direction.

However, this device does not have sufficient fixation in the eye. When fixing the artificial lens of the eye in the internal arches of this device, an inevitable change in the position of the device as a whole occurs.

The technical result achieved by the proposed intracapsular ring is to increase the stability of the intracapsular ring in the capsule bag and in the eye as a whole.

The specified technical result is achieved in that the intracapsular ring containing the supporting elements in the form of an open ring, additionally contains two arcs symmetrical with respect to the center of the annular supporting element, one of the ends of each arc is connected with the annular supporting element, and their free ends are diametrically opposed to the center of the annular support element, while the arcs are bent to one side at an angle lying in a plane perpendicular to the plane of the ring-shaped op molecular element, in the range of 2 ° to 4 °.

The proposed utility model is illustrated by drawings of Figures 1-5:

Figure 1 View of the intracapsular ring before implantation (1 position)

Figure 2 Side view before implantation (1 position)

Figure 3 A top view of the implantation of the annular support element into the capsular bag and additional arcs in the angle of the anterior chamber 2 position)

Figure 4 A top view of the implantation of the annular support element into the capsular bag and additional arches into the ciliary groove (3 position)

Figure 5 A side view of the eye when implanting an annular porous element into a capsular bag and additional arches into a ciliary groove (3 position)

The drawings indicate the position:

1. The ring-shaped support element

2. Additional arcs of the intracapsular ring

3. The center of the annular support element

4. The angle of deviation of the additional arcs from the annular support element

5. The edge of capsulorexis

6. Equator of the lens bag

7. Front camera angle

8. Iris

9. Ciliary groove

The proposed utility model is as follows: there is a support element 1 in the form of an open ring; additionally introduced two arcs 2 located symmetrically with respect to the center 3 of the annular support element. One of the ends of each arc is connected to an annular support element. Their free ends are diametrically opposed to the center 3 (Figure 1). Arcs 2 are bent to one side in the plane perpendicular to the plane of the annular support element at an angle of 4, lying in the range from 2 ° to 4 ° (Figure 2).

Work with the proposed intracapsular ring with fixation in the ciliary sulcus is as follows.

After a continuous circular capsulorexis 5 (Figure 3) and hydrodissection of the cortical layers of the lens, the device is implanted through a tunnel corneal incision of at least 2 mm. In this case, the annular support element 1 is located in the capsular bag 6, and additional arches 2 in the corner of the anterior chamber of the eye 7. Phacoemulsification and lens removal are performed. An artificial eye lens is implanted. Then, with the help of the hook, additional arcs 2 are started for the iris 8 and abut against the ciliary groove 9 (Figs. 4, 5).

Using the utility model allows to increase the stability of the intracapsular ring in the capsule bag and in the eye as a whole.

Claims (1)

An intracapsular ring containing support elements in the form of an open ring, characterized in that it additionally contains two arcs symmetrical with respect to the center of the annular support element, one of the ends of each arc is connected with the annular support element, and their free ends are diametrically opposed to the center of the annular support element while the arcs are bent to one side by an angle lying in a plane perpendicular to the plane of the annular supporting element in the interval from 2 to 4 °.