SU1697794A1 - Device for fixing donor eyeball - Google Patents

Abstract

This invention relates to medical technology. The purpose of the invention is to improve the accuracy and convenience of cutting out the graft on the donor eye, expanding the operative field, reducing postoperative complications and ensuring the dosage value of intraocular pressure with the possibility of its adjustment during surgery. For this, the housing consists of two halves connected by a threaded sleeve, the upper part of which is made in the form of a ratchet with limiters, with a rim on the threaded sleeve. In the upper half of the body there is a ratchet pawl and a return spring, which are articulated with the button, with the latches made in the form of metal loops fixed obliquely at one end on the upper part of the threaded bushing and the other on the washer. 2 Il.

Description

The invention relates to medical technology, in particular to devices for fixing a donor ophthalmic unit, used in ophthalmology for teaching techniques of microsurgical operations and for cutting out grafts.

The purpose of the isobrete is to improve the accuracy and convenience of cutting out the graft on the donor eye, expanding the operative field, reducing postoperative complications, providing the dosage value of intraocular pressure with the possibility of its adjustment during surgery.

FIG. 1 shows the device, the frontal section; in fig. 2 - the same, top view.

The device consists of a body made of composite, with its lower half 1 connected to the upper half 2 by means of a threaded sleeve 3, the upper part of which is made in the form of a ratchet 4; limiters 5 and 6. On the threaded bushing 3 there is a rim 7, which interacts with the groove 8 of the upper half 2 of the body.

Below the groove 8 is a pocket. 9, in which the pawl 10 is articulated with the ratchet 4. The pivot 11 of the pawl 10 is mounted vertically in the upper half of the housing 2, and the button 12 is located in the side surface of the upper half of the upper housing 2. the deflecting pawl 10 and the returnable

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spring 13. One end of the return spring 13 is fixed in the body of the dog 10, and the other rests against the wall of the pocket 9.

In the upper part of the threaded sleeve 3 on the side of its surface, metal loops 14 are fixed inclined at equal distances from one another, with only one end 15 and the other opposite end 16 they are also fixed inclined on the inner side surface of the washer 17 connected to The upper half of the housing 2. Inside the threaded sleeve 2 there is a threaded plug g - 18 and an insert 19, which has a slot on the side surface that includes a key 20, which is fixed on the inner surface of the threaded sleeve 3.

The device is operated as follows.

The donor eye is placed on the liner 19, the button 12 is pressed and the upper half of the body is turned relative to the lower half 1 in a clockwise direction, the metal loops 14 are actuated, which then braid the eye block. Depending on the size of the eye block and the desired operating floor, the screw plug 18 raises or lowers the liner 19. After the operation, press the button 12 and turn the upper half of the body 2 relative to the lower half 1 in the opposite direction

Claims (1)

clockwise up to the stop, returning the metal loops 14 to the initial position. Claims An apparatus for fixing a donor ophthalmic unit comprising a housing and fixatives is distinguished by the fact that, in order to improve the accuracy and convenience of cutting out the graft on the donor eye, expanding the operative field, reducing postoperative complications and providing a metered amount of intraocular pressure with the possibility of its adjustment operations, the body is made of composite, with its lower half connected to the upper with a threaded sleeve, the upper part of which is made in the form of xp with a limiter, and on the threaded bushing there is a rim supported on the undercut of the upper half of the body, while below the undercut there is a pocket in which the ratchet pawl and return spring are placed, and on the upper half of the casing there is a washer and a button articulated with the pawl and return spring, and the latches are made in the form of metal hinges, mounted obliquely at one end on the top of the threaded sleeve, and the other on the washer, and in the threaded sleeve there is a threaded plug and insert with a slot, which includes a key, reinforced on the inner surface of the threaded sleeve. # 20 Fig 2.