| 摘要 |
Novelty: surgical tool for drilling holes of standardized diameter for the reception of standardized plugs sealing surfaces having through openings. Constitution: the tool 1 configurating the hole 4 on the periphery of the through opening of the surface 2, which hole is suited for the reception of a standardized high-accuracy plug; the cylindrical body 6 having the shaft 8 adaptable to a rotary motion- supplying means; the cutting head 8a provided with peripheral triangular indents and the guiding head 10 firmly mounted on the mouth of the opening 17 of the cutting head 8a; Drilling process: for the configuration of the hole 4 the user proceeds in inserting, first, the cylindrical section 10a of the guiding head 10 into the through opening 3; the tool 1 will be, thus, aligned and stabilized 1 and the cylindrical body 6 rotating so that the cutting head 8a -which is inserted inside the opening 3- can configurate the plug-receiving hole 4 in a depth defined by the projecting length of the cutting head 8a, and by the peripheral ring 7 positioned at the circumference of the body 6. |
