SU1388021A1 - Instrument for endodontia - Google Patents

Abstract

This invention relates to medicine. In order to increase the durability and accuracy of orientation of the tip relative to the tooth channel, one end of the tool is made in the form of a tip, 1, the other end is twisted into a spring and forms a handle 2. Tip 1 and the spring are coaxial. Tip 1 has a stopper 4. Handle 2 is covered with a flexible corrugated heat-resistant polymer coating 5. 2 Cp. f-ly, 3 ill.

Description

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The invention relates to medical technology and can be used in instruments containing a rod tip with a stop and a handle, intended in particular for endodontics.

The aim of the invention is to increase the durability and accuracy of the orientation of the tip relative to the axis of the tooth channel.

Figure 1 shows a tool with a straight wound handle; figure 2 is a tool with a return wound handle; on fig.Z - the tool with the handle which is separately made and attached to a tip in the form of a cone

The tool is a one-piece construction made of wire. At one end, a piece of wire is processed in the form of the tip of 1 file (drill, drill bit, duct filler, etc.). The other end of the wire is twisted into a spring with a diameter of 4 mm and forms a handle 2, which ends in a loop 3, made from the last 1-2 turns located in the plane of the axis. Tip 1 and spring 2 are coaxial. The tip is fitted with a limiter 4. The limiter is made in the form of a plate of a triangular shape made of dyed silicone rubber or rubber: based on butyl rubber. The handle 2 is covered with silicone corrugated rubber 5 or rubber based on butyl rubber. The vertices of the limiter 4 will extend beyond the circumference of the handle 2.

The operation of the tool is as follows. .

According to the color of the limiter 4, a tool with the desired diameter of the needle 1 is selected. A tool with the limiter 4 retracted to the tip of the tip G is inserted into the hole of the tooth canal and the handle 2 is rotated with two fingers. The flexible handle 2 allows the tip to be oriented along the channel with greater accuracy,

At the same time, the tip I does not undergo a bend, which is how its work differs from the work of well-known tools with a rigid handle. Rotate the handle 2, and hence the tip 1, to clean the cavity of the tooth canal and, clamping the handle 2 with your fingers, take out the instrument from the patient's oral cavity. According to the position of the limiter on the tip

1 moved to the side of the handle

2, determine the immersion depth of the tool tip relative to the surface of the tooth.

The design of the tool has the following technical advantages: the possibility of bending the handle increases the accuracy of the tip orientation relative to the axis of the tooth canal and eliminates the tip bend, which increases the tool life; the large diameter of the handle and its coating with a polymer make it easier to hold and rotate the tool, and also simplifies the marking of the tool; solidity of the tip and the handle excludes their separation during the operation. At the same time, the triangular shape of the limiter makes the tool unable to roll along the tool table, which facilitates the work of the doctor.

Claims (3)

1. Instrument / u1 endodontics, containing a tip with a limiter and a handle, characterized in that, in order to increase the durability and accuracy of the tip orientation relative to the axis of the tooth canal, the handle is made in the form of a helical spring with a flexible corrugated heat-resistant polymer coating. 2. The tool according to claim 1, about t l and - h and K1 u and with the fact that the spring has the shape of a cone. 3. The tool of claim 1, wherein the limiter is made in the form of a triangular plate.