SU405536A1 - DEVICE FOR X-RAY - Google Patents

Description

The invention relates to a medical technique, and in particular to devices for radiography of the retromolar region.

A device for radiography containing. Radiopaque lead standards, a holder of standards and a film holder are known.

However, the known device does not determine the thickness of the soft tissues of the retromolar region.

The aim of the invention is to eliminate this disadvantage.

This is achieved by the fact that the X-ray standards in the form of lead spikes are attached to a holder, painted in the form of two guide tubes, one above the other in the block, with one of the tubes fixed and fitted with a grip to the dental row, and the other is movable in the axial direction; the film holder is provided with carrier rods fixed with a jumper — one relative to the other and movably mounted in the holes of the slider movable relative to the shoe in the direction perpendicular to the axis of the rods. The slider has a vertical row of holes for moving the film holder vertically.

FIG. 1 shows the proposed device, side view (for the right side. Lower people.); in fig. 2 - the same, top view;

in fig. 3 - the same, rear view; in fig. 4 - the same, front view.

The device comprises a holder made in the form of two pairs: guide tubes / and 2, which are parallel to each other, to be placed in their lumen of thread 3, designed to hold X-ray contrast standards 4 in the form of spherical beads strung on a thread. The upper guide tube / moves freely in the openings of the jumpers 5 VI 6 for the stacking of standards 4 but with a crest of soft tissues of the retroromolar region. The guide tube 2 is rigidly fastened with jumpers 5 and 6. At the end of the guide tube 2, the protrusion 7 is used to grip the back edge of the G 7 or 77 tooth and fix the device to the tooth row. Jumper 5 is reinforced with grip 8 to firmly attach the entire device to a T7 6 or 577 tooth. Am. At the opposite end of the tubes / and 2 there are handles 9 with a latch 10 for preventing the thread 3 from displacing in the tube lumen, i.e. for preventing the standards from slipping from the soft tissues.

In the block // there are openings for the guide tube /, as well as a canopy for the base tube 2. This embodiment of the block // allows placing the device on the right side of the jaw after preliminary removal of the tube / s

jumpers 5 and 5. In the // block, on the side opposite to the nest-Canopy location and perpendicular to the plane of the guide tubes /: and 2, guide rods 12 are tightly fixed, designed for translational movement along the EIM of the slider 13 :(. Fig. 2).

Between the window | M, | M, and 12 is the adjusting screw 14 for displacing the slider 13 perpendicularly to the plane of the pipe to 7 and 2. In the slider 13, -thwind, with guide holes located in a plane parallel to the plane tubes /, and and intended for supporting rods 15. In the holder

16 films have a vertical row of holes

17 (Fig. 3), which are intended to be placed in them (supporting rods 15. Such a film holder is placed in the oral cavity against the inner angle of the jaw, and also moves along the width and vertical depending on the width, depth and depth of the alveolar ave. Ostranstva.

; The step of moving the holder 16 of the film vertically through the m bearing carriers / 5 is equal to the distance of the axes of the two adjacent, near by, openings in the holder strip 16. Displacement of the holder by captivity; However, the width is achieved by moving the slider 13 with the adjusting screw 14. The carrier sterols 15 are held securely in the bridge 18, and on the side of the carrier, the films have recesses for the latch 19, which are designed to reliably roll the film holder on the supporting rods 15.

The film holder is inserted into the slot of the film holder, the film wrapped in opaque paper. The device no. (Without the holder of the film and the supporting rods) is placed in the mouth cavity so that the jumper 5 together with the gripper 5 lies on the T7 or 7T tooth, and the protrusion 7 of the tube 2 comes close to the back) the 1st edge of the same tooth. The guide tube is fused / until the end of the tube contacts the upstream branch of the lower jaw and the lower jaw.

Then, the nltku 3 is lowered so that our standards 4 fixed on them are free, due to their severity, to fall on the soft tissues of the retromol retouched area. Sweat a little thread on yourself, ensure that the standards in the form of spherical beads are in the same plane. - After that, they fix in the same position on the ends of the guide tubes / and 2 latches 10. Pass the supporting rods 15 3 holes of the slider 13. Zero. M3 | Measure the depth of the alveolar bladder space from the top edge of the G7 the tooth to the bottom of the oral cavity and, accordingly, to a given depth, the holder 16 of the film is fixed by bearing rods / 5. Push the film holder between the edge of the tongue and the inner surface.

crowns. mol roa to retro molar oolasti, if necessary, and just a shift of the film holder along the width of the regulator, using a screw 14.

Next, install the patient's head in a vertical position on a special stand and produce intraoral X-ray diffraction so that the central beam of the working beam of X-rays is directed to the inner corner of the mandible. For this purpose, the nepeKipeicT grid of the light centralizer of the x-ray tube should be directed to the projection of the internal angle of the jaw, which is determined by palpation of each test that is carried out before X-ray. In this position

the upper edge of the soft tissues of the retro. molar region and the plane of the location of lead balls on it will be at the same distance from the plane of the X-ray film, which in the X-ray process

will be parallel to the plane of the standards.

Establishing a source of x-rays and a film between: the soft tissues of the retromolar region, together with a set of standards above the scale, makes it possible to obtain an image of the standards as well as space on X-rays. between NIZh1ShM and the upper edge of the jaw. Now, compare to a radiograph on an X-ray diffraction pattern when circulating from a meter, the distance from the lower edge

standards to the edge of the alveolar process (upper edge of the lower jaw) with the diameters of the standards, find out the true thickness of soft tissues in various regions of the retrometallic region of interest to researchers,

including those over the impermeable ms with the lower third mole. .

Prede d invented and

Claims (2)

1. An X-ray device containing radiopaque standards, a holder of standards and a film holder, characterized in that, in order to determine the thickness of the soft tissues of the retromolar region, the radiopaque standards are made in the form of lead spherical beads and fixed in a holder made in the form of two nanovravlâvnyh tubes located one above the other in the block, with one of the tubes is stationary and equipped with a grip to the dental row, and the other is movable in -seal-to-ground; the film holder is provided with supporting rods .And, fixed by our bridge one relative to the other and movably mounted in the holes of the slider, which is movable relative to the pad in the direction perpendicular to the axis of the rods. 2. The device according to claim 1, characterized in that, in order to move the film holder vertically, the slider has a vertical row of holes. FIG. g H sixteen eight  ) I / "F5 / 18  five 0 "g 2