RU14827U1 - DENTAL GUN - Google Patents

Abstract

A dental gun containing a housing, a handle, a tip, valves, inlet tubes and concentric tubes at the outlet, characterized in that the tool has a compressed air supply channel containing a serially connected inlet tube, an air valve cavity, from which air is open when the valve is open enters the annular space of the concentric tubes, and a water supply channel containing a serially connected inlet tube, a valve cavity for water, from which, with the valve open, water blunt into the inner tube concentric tubes, besides dental gun configured to separately supplying both water and compressed air, and simultaneously feeding to form a water-air mixture.

Description

DENTAL GUN

The utility model relates to medicine, in particular to dentistry, and is intended for supplying water and air when providing dental care in medical treatment facilities.

A device is known for supplying water to a dental handpiece containing a two-position valve-type distributor with a membrane, a stem and working cavities for controlling the flow of water, a valve for controlling the flow of air, pipelines (AS No. 1122310, A61C, 1984).

A known tool used in gas cutting of metals, comprising a housing, a handle, a tip, valves for turning on the supply of compressed gases (acetone, oxygen) and pipelines. (Polytechnical Dictionary. Edited by I.I. Artobolevsky. 1976, p. 420).

Known hand tools cannot be used in dental practice, because its design additionally provides for a third valve (cutting oxygen) and a chamber for the formation of a combustible mixture (oxygen, acetylene), which complicates the device.

The purpose of the utility model is to develop a simple hand tool designed to supply water, air and a water-air mixture and provide effective dental care.

This goal is achieved by the fact that in a dental gun containing a housing, a handle, a tip, valves, tubes at the inlet and concentric tubes at the outlet, the inside of the tool is made: a compressed air supply channel containing a serially connected inlet tube, valve cavity for air, from which, with the valve open, air enters the annulus of the concentric tubes,

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and a water supply channel containing a serially connected inlet tube, a valve cavity for water, from which, when the valve is open, water enters the inner tube of the concentric tubes, in addition, the dental gun is capable of both separate supply of water and compressed air, and simultaneous supply with the formation of a water-air mixture

Figure 1 shows the proposed dental gun; in Fig.2 - view G in Fig. 1.

The dental gun consists of a housing 1, a handle 2, a tip 3. In the housing 1 two structurally identical valves are installed, fixed by screws 4. The valves are designed to turn on the supply of compressed air and water. The valve consists of a housing 5, a stem 6, a sealing ring 7, a spring 8, a button 9, a sealing collar 10. A tube 11 is fixed in the tip, inside of which there is a tube 12 for water passage. Button 13 opens the valve for compressed air. Inside the instrument, an air supply channel is made, comprising an inlet pipe connected in series, a valve cavity for air A, from which, when the valve 13 is open, air enters the annulus between the tubes 11 and 12. The water supply channel contains a water inlet pipe, valve cavity B, from which, when the valve 9 is open, water enters the inner tube 12.

The gun works as follows.

Compressed air enters the cavity A through the channel, and water into the cavity B. When the button 9 is pressed, the rod 6 moves downward and water enters through the groove in the rod 6 through the channel B into the cavity G, from which it passes to the outlet via the tube 12. When the button 13 is pressed, air enters through the channel D into the cavity E, and then into the space between the tubes 11 and 12. When the buttons 9 and 13 are pressed simultaneously, there is a simultaneous supply of water and air to the tip 3, at the outlet of which a water-air mixture is formed .

Using a dental gun allows you to effectively

provide emergency dental care in medical treatment facilities.

The authors

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.Sh. Vinokur Z.S. Galiullin A.V. Potashev N.Kh.Shakirov

Claims (1)

A dental gun comprising a housing, a handle, a tip, valves, inlet tubes and concentric tubes at the outlet, characterized in that a compressed air supply channel is made inside the tool, comprising a inlet tube connected in series, an air valve cavity, from which air is open when the valve is open enters the annular space of the concentric tubes, and a water supply channel containing a serially connected inlet tube, a valve cavity for water, from which, with the valve open, water blunt into the inner tube concentric tubes, besides dental gun configured to separately supplying both water and compressed air, and simultaneously feeding to form a water-air mixture.