RU14500U1 - CORNER DENTAL TIP - Google Patents

Description

CORNER DENTAL TIP

The claimed technical solution relates to medicine, in particular to angular dental turbine tips and is intended specifically for installation and drive of boron.

Various types of angled dental handpieces are known, with various types of drives and various designs and heads. Known, in particular, are angular laser tips 1, contra-angle handpieces with a micro-electric motor 2, handpieces with an ultrasonic vibrator 3, an angular handpiece in which rotational movement is converted into reciprocating movement of the tool holder 4.

The disadvantages of the known tips are their specific narrow purpose and rather complicated manufacturing process of both the handle and the head.

Widespread high-speed turbo-driven sggomagopologic tips, which are relatively nostrils in design.

As a mounting device for boron, clamping chucks, clamping sleeves, collets, etc., mounted in cavities of the central part of the drive on bearings, are used The turbine mounted on the attachment device is driven by compressed gas supplied through a channel in the handle of the compressor. The head can be removable 5.

Known in particular, closest to the claimed technical solution, selected as the closest analogue, the angular dental tip 6 with a handle and a head with a drive. The drive is made in the form of a boron fastening device mounted on bearings in the head under the ash to the axis of the head in the form of a chuck with a button for ejecting boron, and a turbine mounted on it. The handle has a channel for supplying compressed air to the head for rotation of the turbine and a channel for exhausting exhaust air.

The disadvantages of the known angular dental handpiece are:

- the complicated process of manufacturing the handle associated with hot drawing, turning, etc.

-insufficient possibilities for placing several channels in the handle for supplying and discharging working fluids, in particular, compressed gas, water, as well as light sources and optical fibers,

- vibration and unpleasant noise from the drive during operation,

- the inconvenience of replacing with respect to sterility with demonhams and mounting the head, removing the drive with a boron mounting device and impeller and replacing them,

Relatively low drive efficiency

- the absence of information on the operational status of the drive.

The objective of the proposed technical solution is to simplify the manufacturing process of the dental handpiece, improve operating conditions and control the condition of the drive, as well as increase its efficiency.

The problem is achieved due to the fact that when using the signs of a known angular stomatological tip, including a handle equipped with channels for supplying and discharging a working medium, a head with an angularly mounted drive consisting of a boron fastening device mounted on the central part and a turbine mounted on it, driven into rotation by compressed gas supplied through a channel in the handle, as well as the end side of the button for clamping located on the opposite boron releasing boron, in accordance with the claimed technical solution, the handle is stamped from sheet material and has an internal cavity with tubes installed in it, in particular a tube for supplying compressed air to the turbine from the compressor, connection tubes, heads to light sources, in particular for the passage of optical fibers, as well as a tube for supplying water; while the channel for

The exhaust medium is formed by cavities between the tubes and the handle body, the turbine is multi-nozzle with several shock absorbers, and the drive with the turbine is enclosed in a housing in the form of a removable module with shock absorbers.

The drive module can be made in the form of a removable housing with a boron fastening device mounted in it in bearings in the form of a collet with a turbine mounted on it and equipped with an indicator located on the button, in particular, in the form of optical fibers signaling the turbine's working condition.

The implementation of the handle stamped from sheet material instead of hot drawing, turning, etc. It simplifies and reduces the cost of production, provides great opportunities for placing elements in the inner cavity to power the drive and expand the functionality of the handpiece, in particular tubes for accommodating several light sources, in particular optical fibers for irradiating the preparation area with light sources with different wavelengths.

The implementation of the multi-nozzle turbine can increase efficiency and reduce energy consumption.

Installing the drive and module bearings on several shock absorbers allows you to reduce vibration and eliminate unpleasant noise.

Implementation of the drive as a separate removable module allows the quick replacement of one module with another without removing and disassembling the head.

The installation of the indicator provides constant information on the operating status of the drive.

The claimed technical solution with these distinctive features completely solves the problem.

In more detail, the claimed technical solution is considered in the drawings, which show:

FIG. 1 - angled tip with a handle and a drive head, general view;

FIG. 2 - handle in cross section with tubes for supplying air, water and placement of optical fibers;

-Fig.Z - drive removable module, in longitudinal section.

The angled dental handpiece of FIG. 1-3 consists of a handle 1 with tubes laid in its cavities, tubes 2 for the passage of compressed gas 3, water 4 and optical fibers 5 laid in its sleeves, and also with a channel 6 for draining the waste medium formed by the cavity between the tubes and the handle ia pnycoM and heads 7 with a drive in the form of a removable module 8 mounted in the head at an angle to it.

The drive module 8 is made in the form of a cylindrical housing 9 with a collet 12 mounted on bearings 10 with shock absorbers 11 located on it along the central axis 12. A turbine 13 is installed on the collet, made many x) with nozzles 14 for supplying compressed gas to the turbine blades from the handle 1 of the tube 3. On the opposite end of the boron there is a button 15 on a spring-loaded washer with a finger located on it in the central part, abutting the central part of the collet and designed to unclench the collet when the button is pressed 15 to replace boron. The housing of module 9 is also equipped with shock absorbers 18. LEDs are installed in the button (not visible in the figure), signaling the operating

drive condition. The handle body with the head is covered with heat-shrink film 19.

The drive module is replaced by unscrewing the lock ring (not visible in the figure) and pushing it out of the head. To replace the boron, press the button. At the same time, due to the pressure of the ring, the collet is expanded, and the boron is freely removed from the collet. After installing a new bur, the button is released and the bur is clamped in the collet.

The claimed technical solution fully performs the task.

The claimed technical solution with its distinguishing features currently in the Russian Federation and abroad is not known and meets the requirements of the criterion of "Novelty.

The claimed technical solution is original, does not follow obviously from the existing level of technology, creates a positive effect and meets the requirements of the criterion of "creative level.

The inventive angular dental handpiece can be manufactured in an industrialized manner in mass production using well-known technical means, technologies and materials and meets the requirements of the criterion of "industrial applicability. No. 9 Bibliographic data 1 EPO No. 0037617, МЖЖА61С1 / 08, publ. 03/09/83. 2 EPO No. 0200940, MPKA61S1 / 00, publ. 11/12/86. 3 Application for FROM Japan No. 60-58855, IPC A61SZ / 03, publ. 12/21/85. 4 EPO No. 0269564, IPC A61C1 / 08, scuba. 11/12/86. 5 RF patent No. 2030904, IPC A61C1 / 12, publ. 03/20/95., Bull. Number 8. 6 RF patent for IZ No. 2056807, IPC A61C1 / 12, publ. 03/27/96., Bull.

Claims (3)

1. An angled dental handpiece, including a handle equipped with channels for supplying and discharging a working medium, a head with an angularly mounted drive consisting of a centrally mounted part mounted on bearings of a boron mounting device and a turbine mounted on it, driven into rotation by a compressed gas supplied to the turbine through the channel in the handle, as well as the front side of the button for clamping and releasing boron, located on the opposite boron, characterized in that the handle is stamped from sheet metal material and has an internal cavity with tubes installed in it, in particular, a tube for supplying compressed gas from the compressor to the turbine, tubes for connecting the head to light sources, in particular for the passage of optical fibers, and also a tube for supplying water, while the channel for The exhaust medium is formed by cavities between the tubes and the handle body, the turbine is multi-nozzle, and the drive with the turbine is enclosed in a housing in the form of a removable module with shock absorbers.  2. The angular dental tip according to claim 1, characterized in that the drive module is made in the form of a removable housing with a boron fastening device mounted in bearings in the form of a collet with a turbine mounted on it, while the module is equipped with an indicator located in the button in the form optical fibers signaling the operational state of the turbine. 3. Angled dental handpiece according to paragraphs. 1 and 2, characterized in that the handle body with the head is covered with shrink film.