DRILL HEAD STRUCTURE FOR DENTAL HANDPIECE

Abstract

The present invention discloses a drill head structure for dental handpiece comprising a drill head main body, a screw nut and an adjusting ring. The drill head main body may be attached to a driving end of a dental handpiece so that the drill head main body may be driven by the dental handpiece to rotate at high speed. On the drill head main body is disposed a thread section. The screw nut is a hexagonal nut to be screwed to the thread section of the drill head main body. The adjustment ring has predetermined ring widths, and at a center thereof is disposed a hexagonal screw nut indent for the screw nut to be fitted into it. At a center of the adjustment ring is also disposed a threaded hole to be screwed to the foregoing thread section. The dental bone drill structure provided according to the present invention may achieve the purpose of controlling the drilling depth to which the drill head goes in and determine the drilling position.

Claims

1. A drill head structure for dental handpiece comprising a drill head main body, a screw nut and an adjusting ring; the drill head main body is a thin rod body with an upper end that forms an attachment portion to be attached to a driving end of a dental handpiece so that the drill head main body may be driven by the dental handpiece to rotate at high speed, and a bottom end of the drill head main body that forms a drilling portion for drilling by cutting; above the drilling portion is disposed a thread section; the screw nut is a hexagonal nut to be screwed to the thread section of the drill head main body; the adjustment ring has predetermined ring widths, and at a center thereof is disposed a hexagonal screw nut indent for the screw nut to be fitted into it; at a center of the adjustment ring is also disposed a threaded hole to be screwed to the thread section of the drill head main body, wherein the predetermined ring widths are correspond to the spacing between two teeth in the affected area.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1 is a three-dimensional exploded structural drawing of a preferred embodiment according to the present invention;

[0010] FIG. 2 is a three-dimensional assembly structural drawing of a preferred embodiment according to the present invention;

[0011] FIG. 3 is a planar assembly structural drawing of a preferred embodiment according to the present invention;

[0012] FIG. 4 is a three-dimensional installation schematic view of an adjusting ring according to the present invention (1);

[0013] FIG. 5 is a three-dimensional installation schematic view of an adjusting ring according to the present invention (2);

[0014] FIG. 6 is a planar installation schematic view of an adjusting ring according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The technical content, features and effects of the present invention will be fully demonstrated in the detailed description of its preferred embodiment given herein below and the accompanying drawings. It should be noted that the accompanying drawings are illustrative and exemplary only and intended for the explanation of a basic structure of the present invention. Therefore, it will be appreciated that in the accompanying drawings only structures or components that are relevant to the present invention are shown, and the illustrated forms of structure, size, proportion, or number of components are only one selective design.

[0016] The structure of the present invention and the effects it may achieve are demonstrated below in conjunction with the accompanying figures:

[0017] Please first refer to the three-dimensional exploded structural drawing of a preferred embodiment according to the present invention shown in FIG. 1, the three-dimensional assembly structural drawing of a preferred embodiment according to the present invention shown in FIG. 2, and the planar assembly structural drawing of a preferred embodiment according to the present invention shown in FIG. 3. As the figures show, the present invention comprises a drill head main body 10, a screw nut 20 and an adjusting ring 30, wherein:

[0018] The drill head main body 10 is a thin rod body with an upper end that forms an attachment portion 11 and a bottom end that forms a drilling portion 12, and above the drilling portion 12 is disposed a thread section 13. The attachment portion 11 is to be attached to a driving end of a dental handpiece so that the drill head main body 10 may be driven by the dental handpiece to rotate at high speed. The drilling portion 12 may drill by cutting.

[0019] The screw nut 20 is a hexagonal nut to be screwed to the thread section 13 of the drill head main body 10.

[0020] The adjustment ring 30 has predetermined ring widths, and at a center thereof is disposed a hexagonal screw nut indent 31 for the screw nut 20 to be fitted into it. At a center of the adjustment ring 30 is also disposed a threaded hole 32 to be screwed to the thread section 13 of the drill head main body 10.

[0021] According to the component structure design of the foregoing present invention, the attachment portion 11 is to be attached to a driving end of a dental handpiece so that the drill head main body 10 may be driven by the dental handpiece to rotate at high speed and the drilling portion 12 may drill a hole in an alveolar bone. In particular, the screw nut 20 may be individually screwed to the thread section 13 of the drill head main body 10, or the adjustment ring 30 may be individually screwed to the thread section 13 of the drill head main body 10, or the screw nut 20 may be placed in the screw nut indent 31 of the adjustment ring 30 before being screwed to the thread section 13 of the drill head main body 10. Please also refer to the three-dimensional installation schematic view of an adjusting ring according to the present invention illustrated in FIGS. 4, 5 and 6. By screwing the screw nut 20 and the adjustment ring 30 to the thread section 13 of the drill head main body 10 in different manners, the drilling portion 12 may go into different drilling depths. Further, the adjustment ring has predetermined ring widths which correspond to the spacing between two teeth in the affected area. There are various ring widths for the dentist to choose from. Because the ring widths of the adjustment ring 30 correspond to the spacing between two teeth in the affected area, during the drilling process the drill head main body 10 may be limited by the spacing between two teeth in the affected area and the drilling position may be as planned.

[0022] The structure design of the present invention achieves the following advantages: [0023] 1. The adjustment ring 30 may be screwed clockwise or counterclockwise so that its position on the thread section 13 of the drill head main body 10 may be adjusted and the drilling portion 12 exposed. This makes it easy for the dentist to steadily control the drilling depth and prevent problems of over or inadequate drilling. [0024] 2. The adjustment ring 30 has predetermined ring widths for the dentist to choose from, and the ring widths of the adjustment ring 30 correspond to the spacing between two teeth in the affected area. Therefore, during the drilling process of the drill head main body 10, the adjustment ring 30 may provide a guiding function for a drilling position so that the drilling position may be as planned.

[0025] As the foregoing, the prevent invention primarily comprises a drill head main body 10, a screw nut 20, and an adjustment ring 30. It may be attached to a dental handpiece for drilling a hole in an alveolar bone, control the depth to which the drill head end goes in the bone, and assist in guiding and determining a precise position for drilling to facilitate the placement of the implant body and improve its steadiness. However, it should be noted that the structural content of the foregoing components is only illustrated of a preferred embodiment of the present invention rather than limiting of the present invention. It is intended to cover various modifications and changes included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structures.