Root canal instrument handle made of two co-axial portions joined in axial translation and in rotation

A root canal and instrument technology, applied in the direction of dental nerve/root treatment tools, medical science, dentistry, etc.

Inactive Publication Date: 2010-02-03
MICRO MEGA INT MFG SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] [11] The object of the present invention is to propose a new type of handle, which has the main advantages of the two types of handles

Method used

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  • Root canal instrument handle made of two co-axial portions joined in axial translation and in rotation
  • Root canal instrument handle made of two co-axial portions joined in axial translation and in rotation
  • Root canal instrument handle made of two co-axial portions joined in axial translation and in rotation

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Embodiment Construction

[0022] [22] The principle of the handle according to the invention is realized by two coaxial parts, for example cylindrical, said two coaxial parts being an inner part 3 and an outer sleeve 2, so Said outer sleeve 2 covers said inner part over at least a part of its length, and is provided with means for connecting said outer sleeve 2 to said inner part 3 both in axial translation and in rotation . Irrespective of manufacturing tolerances, the inner diameter of the outer sleeve is equal to the outer diameter of the inner part 3 over the covered length.

[0023] [23] Of course, the cross-section of the handle does not have to be cylindrical, for example, a polygonal cross-section can be considered, or as Figure 8 Exemplarily, the section of the interface between the sleeve 2 and the inner part 3 is polygonal.

[0024] [24] According to figure 1 or 2, the handle according to the invention is mounted on an instrument or blade 1 , which passes through the handle from one side...

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PUM

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Abstract

The invention relates to a root canal instrument handle of rotating endodontic type, for example a bur shank, comprising at its end, intended to engage in a driving assembly of the head of a headpieceor a counter-angle, an annular groove and a flat section to engage with an additional means for axial linkage and rotating links provided in the driving assembly, a handle characterized in that it ismade up of two co-axial portions in which an internal part (3) and an external sleeve covering the internal portion at least on a portion of its length, a means being provided to fix the sleeve (2) to the external portion (3) in axial translation and rotation, in that it comprises translational and rotational blocking means to engage with a root canal instrument. To easily identify an instrument,it can be provided that for a given instrument, there is a match of a given combination of colors of the two portions of the handle.

Description

technical field [0001] [01] The present invention relates to a novel endodontic instrument handle. Background technique [0002] [02] Prior art known a kind of plastic material handle, its advantage is: [0003] [03] - Many colors available, good control of cleanliness, electrical insulation. [0004] [04] and its defect is: [0005] [05] - Poor resistance to cleaning and disinfection products, poor resistance to sterilization, small transmission torque, which makes some customers feel bad. [0006] [06] Prior art also known a kind of metal handle, its advantage is: [0007] [07] - Good resistance to cleaning and disinfection products, good anti-sterilization, large transmission torque, which makes customers feel good, and good conductivity. [0008] [08] And its defect is: [0009] [09] - Fewer colors available, cleanliness difficult due to shank / blade interface, requires one shank diameter per fil diameter and should be precise. [0010] [10] The prior art also known...

Claims

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Application Information

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IPC IPC(8): A61C5/02B25G3/34A61C5/42
CPCA61C5/023A61C2201/002A61C3/02A61C1/145A61C5/42
Inventor P·加西亚J·佩尔诺H·厄夫拉尔
Owner MICRO MEGA INT MFG SA
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