SU1421320A2 - Retractor for lower jaw - Google Patents

Abstract

The invention relates to medicine, more specifically to surgical equalization or retractors for operations on the jaw. The purpose of the invention is to reduce trauma by limiting the dangerous mixing of a working saw. The retractor is S-shaped, the handle 1 and the working part in the form of a concave, smoothly polished, well-reflective surface. The end end of the working part is bent at an obtuse angle close to the straight line and contains the middle and two side plates 2 and 3. The side plates 3 are already made plates 2 and are bent perpendicular to the tool's concavity. The plates restrict the mixing of the tool in the direction away from the cutting direction and direct oblique kerf starting from the back edge of the mendelium notch and disappearing in the region of the mandible angle. In order to reduce friction between the vrashayuschis saw and tool when touching the free edge of the plate 3 is made convex, and plate 3 - flat to determine more accurately the direction of the cut. A slanting cut allows a gentle slope at an angle of 12-15 °. 4 il. i (L

Description

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The invention relates to medicine, more specifically to surgical equilibrium or retractors for operations on the jaw, and is an improvement to the well-known image in the author. St. No. 1197652.

The aim of the invention is to reduce the trauma by limiting the dangerous movement of a working saw.

FIG. 1 shows a tool, a general view; in fig. 2 - the same, side view;

Tina 3 is flattened, which makes it possible to more accurately determine the direction of the cut, starting from the mandibular notch, when the cut is started at the base of the condylar process and then, due to the gentle inclination, there is almost no change in the position of the saw and no risk of a mistake can be cut in the upper third of the branch. Then, moving the retractor 2-3 times downward, continue to cut obliquely and downward to the angle of the jaw of FIG. 3 - the same, front view; on T T, gradually approaching its rear FIG. 4 - the working part of the instrument, on the edge. Make such an oblique cut allows

pepper cut

The retractor is S-shaped and has a handle 1 and the working part, which is a concave smoothly polished, well-reflecting surface. The end end of the working part is bent at an obtuse angle close to the straight

and contains plates: medium 2 and two side-retractor for the lower jaw according to ed.

th 3, which are made already average 2 and otog-sv. No. 1197652, characterized in that, with

chickpeas perpendicular to the concavity of the JQ decrease in the morbidity by means of the og- tool. limit the dangerous displacement of the working

the saws, the working part has two narrow blades limit the displacement of the tools located along the edges of the plate away from the cutting direction of the blade, one of which is shorter than the other and the horse is the guide for the oblique plates of the plates are interconnected, starting from the posterior edge of the menstrual membrane, located under the notch of the notch and disappearing at an angle of 12–15 ° with respect to the base of the angle of the mandible. To reduce the tooling, the width of the p-friction perpendicular between the rotating saw and the tool plates and the additional is

When touching, the free edge of the plastic is not less than 1/7 of the total width of the working part 3 is made convex. In addition, plast tool.

gentle slope at an angle of 12-15 °. A different implementation of the plate for the right-side operation and the left-side, is shown in FIG. 3

Claims (1)

Invention Formula T gradually approaching its rear edge. Make such an oblique cut allows gentle slope at an angle of 12-15 °. A different implementation of the plate for the right-side operation and the left-side, is shown in FIG. 3 Invention Formula ig.2 USh