Stomatological tip

Abstract

The stomatological tip comprises a head accommodating a turbine with a means for holding a stomatological instrument and at least one hole for gas admission to the turbine, a tip body having a socket for the head to receive, a gas admission duct communicating with a gas supply line. The socket for the hole is capable of providing a complete revolution of the head, while the means for holding a stomatological instrument appears as a collet holder having a control push-button. The tip is furnished with a valve, an intermediate duct provided in the head, an additional duct provided in the tip body and having its outlet communicating with the inlet of the intermediate duct, the clamping blades of the collet holder are accommodated inside the head and the control push-button is accommodated inside the head so as to perform reciprocating motion and have effect on the clamping blades of the collet holder. The control push-button has a surface to be pushed down and a surface for the clamping blades of the collet holder to open, and a hollow space is confined between the inner surface of he head and the push-down surface of the control push-button, the hollow space communicating with the outlet of the intermediate duct. The gas supply line is adapted for communicating, via the valve, with the inlet of the additional duct, and the outlet of the additional duct and the inlet of the intermediate duct communicate with each other via a groove, with the head assuming any position while rotating, the groove is made on the inner surface of the socket for the head to receive, or on the outer surface of that portion of the head which is disposed inside the socket.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The construction arrangement of the proposed stomatological tip is illustrated with reference to the accompanying drawings, wherein:

FIG. 1 is a general view of the stomatological instruments, according to the invention; and

FIG. 2 a sectional view of the stomatological instruments, according to the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The stomatological tip comprises a head 1 (FIGS. 1, 2) which accommodates a turbine (not shown) with a means for holding a stomatological instrument, at least one hole (not shown) for gas admitting to the turbine, and a valve 2. A body 3 of the tip has a socket 4 for the head 1 to receive and a gas admission duct 5 communicating with a gas supply line 6. The socket 4 for the head 1 to receive is adapted to provide a possibility for the head 1 to make a complete revolution. The means for holding a stomatological instrument appears as a collet holder 7 having a control push-button 8. Clamping blades 7₁ of the collet holder 7 are accommodated inside the head 1 and the control push-button 8 is located inside the head 1 so as to perform reciprocating motion and have effect on the clamping blades 7₁ of the collet holder. The control push-button 8 has a surface 8₁ to be pushed down to actuate the push-button 8 and a surface 8₂ for the clamping blades 7₁ of the collet holder 7 to open.

An intermediate duct 9 is made in the head 1 and an additional duct 10 is provided in the tip body 3 and communicates, via the outlet thereof, with the inlet of the intermediate duct 9. A hollow space 11 is provided which is confined between an inner surface 1₁ of the head 1 and a surface 8₁ to be pushed down to actuate the push-button 8 and communicate with the outlet of the intermediate duct 9. The gas supply line 6 is adapted to communicate, via the valve 2, with the inlet of the additional duct 10. The outlet of the additional duct 10 and the inlet of the intermediate duct 9 communicate with each other via a groove 12, with the head 1 assuming any position while rotating. The groove 12 is made on the inner surface of the socket 4 for the head 1 to receive, or on the outer surface of the portion of the head 1 disposed inside the socket 4.

The hole for gas admission to the turbine may appear as a nozzle.

To render manipulating with the stomatological tip easier and reduce the danger of injuring the patient's oral cavity operated upon, the outer surface of the socket 4 of the head 1 and the outer surface of the tip body may so be made as to form conjointly a solid of revolution.

The valve 2 may be provided with a washer 14 and a knob 15 and be accommodated inside the tip body 3.

The stomatological tip proposed herein functions as follows.

Gas is admitted to pass to the turbine via the gas admission duct 5 communicating with the gas supply line 6 and the nozzle, and actuates the turbine to accelerate it to the required rotation speed. A stomatological instrument 16 is set in operation after having been definitely oriented, together with the head 1, with respect to the body 3. Upon turning the valve 2 gas ceases to pass to the gas admission duct 5 and starts flowing along the additional duct 10 and via the groove 12, to the intermediate duct 12 and further on to the space 11 confined between the inner surface 1₁ of the head 1 and the surface 8₁ to be pushed down to actuate the push-button 8. As a result, gas pressure is applied to the surface 8₁ and is imparted to the surface 8₂ for the clamping blades 7₁ of the collet holder 7 to open. The surface 8₂ in turn actuates the clamping blades 7₁ of the collet holder 7 which opens, too, to release the stomatological instrument 16 for its being subsequently withdrawn.

INDUSTRIAL APPLICABILITY

The present invention can find use in medical engineering as stomatological tips. The invention proposed herein is favorably comparable with the prototype and other heretofore known technical solutions due to having a number of advantages thereover, that is: provision of a stomatological tip having a swivel head which substantially lies within the clearance limits of the tip, a collet holder having a control push-button disposed in the head, higher performance reliability, substantially extending capability of stomatological instruments and easier manipulating therewith in the patient's oral cavity.

Claims

1. A stomatological tip comprising a head accommodating a turbine with a means for holding a stomatological instrument and at least one hole for gas admission to said turbine, a tip body having a socket for said head to receive, a gas admission duct communicating with a gas supply line, said socket for said hole being capable of providing a complete revolution of said head and said means for holding a stomatological instrument appears as a collet holder having a control push-button, CHARACTERIZED in that said tip is furnished with a valve, an intermediate duct provided in said head, an additional duct provided in said tip body and having its outlet communicating with the inlet of said intermediate duct, said collet holder has its clamping blades accommodated inside said head and said control push-button is accommodated inside said head so as to perform reciprocating motion and have effect on said clamping blades of said collet holder, said control push-button has a surface to be pushed down and a surface for said clamping blades of said collet holder to open, and a hollow space is established, confined between the inner surface of said head and said push-down surface of said control push-button, said hollow space communicating with the outlet of said intermediate duct, said gas supply line being adapted for communicating, via said valve, with the inlet of said additional duct, and said outlet of said additional duct and said inlet of said intermediate duct communicate with each other via a groove, with said head assuming any position while rotating, said groove is made on the inner surface of said socket for said head, or on the outer surface of that portion of said head which is disposed inside said socket.

2. A stomatological tip as claimed in claim 1, wherein said hole for gas admission to the turbine appears as a nozzle.

3. A stomatological tip as claimed in claim 1, wherein the outer surface of said socket and the outer surface of said portion of said head extending from said socket form conjointly a solid of revolution.

4. A stomatological tip as claimed in claim 1, wherein said valve is accommodated inside said longitudinal body and is provided with a washer and a knob.