RU2538242C1 - Intraocular lens - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: intraocular lens comprises optic and support portions in the form of a disk. The support portion is presented in the form of the disk provided with at least four through spiral convergent channel for intraocular fluid outflow directed from a back surface of the support portion to a front surface of the support portion and formed along the right-hand flat steepest descent Bernoulli's spiral at an even pitch narrowing from the periphery to the centre of the support portion. Each of the channels is provided with the spiral right-hand grooves. Inlets of the channels are arranged at an equal angular distance from each other.

EFFECT: using the given invention enables improving the intraocular fluid circulation between the anterior and posterior eye chambers, and increases the conservation.

6 dwg

Description

The invention relates to the field of ophthalmic surgery.

Known artificial lens of the eye (IHG) according to the patent of the Russian Federation No. 2479286. This device contains an optical and supporting part in the form of a disk, the supporting part is made in the form of a disk equipped with at least three through curved funnel-shaped channels for the outflow of intraocular moisture, directed from the rear surface of the supporting part to the front surface of the supporting part and formed along a logarithmic spiral, tapering from peripherals to the center of the supporting part, and the input holes of the channels are located at the same angular distance from each other.

However, this artificial eye lens has significant drawbacks: insufficient circulation of intraocular fluid between the front and rear cameras of the eye. The hole in the center of the artificial lens over time is clogged by the deposited masses and secondary glaucoma occurs.

The technical result of the invention is to improve the circulation of intraocular fluid between the front and rear cameras of the eye, the prevention of secondary glaucoma, increased organ safety.

The technical result is achieved in that in the artificial lens of the eye, containing the optical and supporting part in the form of a disk, the supporting part is made in the form of a disk equipped with at least four through spiral-shaped narrowing channels for the outflow of intraocular moisture, directed from the back surface of the supporting part to the front surface of the supporting parts and formed by the right-handed spatial spiral of Bernoulli of the steepest descent with a uniform pitch, tapering from the periphery to the center of the supporting part, and to each trunk channel is provided with a right-handed helical grooves, and the channel inlets are arranged at equal angular distances from each other.

The invention is illustrated by drawings: figure 1-6.

Figure 1 - view of the front surface of the IHG.

Figure 2 - frontal projection.

Figure 3 - channel diagram of the outflow of moisture.

Figure 4 is a section along aa of figure 3.

5 is a view of the rear surface of the IHG.

6 is a diagram of implantation.

The proposed invention is made as follows.

The artificial lens of the eye (IHG) contains the optical 1 and supporting 2 part in the form of a disk. The supporting part is made in the form of a disk equipped with at least four through spiral-shaped narrowing channels for the outflow of intraocular moisture 3 (Fig.2). The channels 3 are directed from the rear surface 4 of the supporting part to the front surface 5 of the supporting part. Channels 3 are tapering from the periphery to the center of the supporting part, they are formed along the right-handed spatial spiral Bernoulli 6 (Fig. 3) of steepest descent with a uniform pitch, tapering from the periphery to the center of the supporting part. Each of the channels is equipped with spiral right-side grooves. The inlets of the 7 channels are located on the rear surface at the same angular distance from each other. The outlet openings 8 are indicated in FIGS. 1, 3. FIG. 6 shows a diagram of intraocular moisture flows 9 through IHG channels.

IHG works as follows. The moisture produced in the rear chamber of the eye 10 enters the inlet 7 of the channels, passes through the narrowing channels 3 and leaves the outlet 8 to the outflow paths in the corner of the anterior chamber 11 of the eye. The direction of flow of intraocular fluid flows is schematically indicated by arrows 9.

When moving along narrowing channels, the flow rate of intraocular fluid increases in accordance with Bernoulli's law. This circumstance prevents the deposition of masses on the walls of the canals and helps prevent secondary glaucoma.

An artificial lens of the eye is implanted as follows.

IHG is implanted under local anesthesia. Perform a tunnel incision. IHG is injected into the posterior chamber of the eye in front of the natural lens. The front chamber is washed with a BSS solution, a solution of acetylcholine 0.01% is introduced. Seal the surgical incision.

Using IHG allows you to achieve the claimed technical result - improving the circulation of intraocular fluid between the front and rear cameras of the eye for the prevention of secondary glaucoma, expanding the arsenal of IHG.

Claims (1)

An artificial lens of the eye, containing the optical and supporting part in the form of a disk, characterized in that the supporting part is made in the form of a disk equipped with at least four through spiral-shaped narrowing channels for the outflow of intraocular moisture, directed from the back surface of the supporting part to the front surface of the supporting part and formed on a right-handed spatial spiral Bernoulli of the steepest descent with a uniform pitch, tapering from the periphery to the center of the supporting part, each channel being equipped with spiral right-side grooves, while the inlet channels are located at the same angular distance from each other.

Images