SU22957A1 - Apparatus for measuring the reaction of pupils to irritation - Google Patents

Description

The device for measuring the reaction of pupils to irritation, described in main patent No. 13789, consists of a universal frame, along the rod of which sliders move equipped with toothed racks; the latter carry transparent plates with concentric circles and axial lines superimposed on them. To obtain a flash of light of a certain duration, this device is equipped with incandescent electric bulbs with a special circuit breaker device. In the proposed modification of the device described above, two sliding racks, equipped with divisions, are used, along which the ruler with divisions runs along the top and bottom in the slide, forming together with the racks a frame applied to the head. In addition, along the same racks, between the upper and lower rulers, there is a reflexometer, retractable lamps and tasters in the slide. Racks can be installed in stands, and sliding brackets for the console and for the lamp can be attached to the racks.

In FIG. 1 shows a front view of a proposed modification of the device; FIG. 2-extendable console bracket; FIG. 3-part instrument.

The proposed modification of the instrument for measuring the reaction of pupils to

The irritation consists of a frame of the holder, which consists of two parallel lines 35 and 37 with divisions applied on them, moving up and down the skids 2 and 38 along the side bars 3, which are upright with respect to the patient. Planks 3, also divided, are mounted by a mechanism linking them, which allows them to be brought together or separated from each other, while maintaining their parallelism and equal distances from the center. The bars 3 move in the slide on the bracket 40 of the ophthalmic reflexometer 6, as well as the retractable electric bulbs 36. These bulbs can also be attached to the reflexometer 6 itself from below, then they will move along with the reflexometer. saves always the same relative to his position. For a detailed measurement of individual sections of the head, the bars 3 are moved on the slide 39 by the strippers 5 with the scale meters or the scale compasses on the brackets. The main reflexometer 6 consists of a rod 1 moving up and down along vertical bars 3 and having a saddle to be put on the nose with the center along the axis of symmetry of the eyes and divided from the center along the entire rod in both directions.

Along the rod 1, the rotation of the screws 9 moves the slide 8 (sliders), which are equipped with a screw 7, which moves them with the help of gears 12 (Fig. 3). Brackets carrying frames 23, with mobiles arranged in them, by means of gears 14 and screw screws, frames 19 and 20, with hairs 21 and with scales, are attached to the sled. Above and below the frames 23 are located the hinged fortified hinges 27 folding frames 25 with axial hairs 26.

In order to determine the visual acuity, a bracket 15 is attached to one of the planks of the rack 43 (fig. 2), along which the bracket 45 moves in the slide 16 in the direction perpendicular to the bracket 15. On the bracket 15 in the vertical direction there is a mobile console 42 for the book . Both on the brackets and on the console there are divisions for determining the distance at which the book is from the eyes. In addition to the aforementioned bracket 15 with a book console 42, from the same vertical column 43, there is a structurally connected back bracket 15, a similar elbow bracket with the same divisions, but bearing on

its vertical bracket 41, a lamp unit for even and constant illumination of the surface of the book for reading.

Prev Invention.

1. In the apparatus for measuring the pupil reaction to stimulation described in patent NZ 13789, the use of a holder, characterized in that it consists of two parallel, which can be approached and removable and which have divisions 3.3 and 3 in which there are: a) c slides 2 and 38, dividing two rulers 35 and 37, b) in slides on brackets 40-device 6 for measuring pupils' reaction to irritation, c) electric lamps 36 and d) sliding in slides 39 retractable testers 5 with slider 39 mi or large-scale compasses.

2. With the holder specified in p. 1, the use of arm-mounted sliding supports supported on racks 43, consisting of dividing brackets 15, 45 and 41 and serving to support the console 42 for the book and the lamp for lighting the book. E addicted

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.... I I .. |.: 1. I .. I. I 1. | „I to the copyright certificate of L. Ya. Vilenkina 22957