Patent · US Expired

Surgical instrument for cutting-out a cranial disc from the cranial bone

US6129731A · kind A · utility

5Cited by

3References

17Claims

0Family size

Assignee

Aesculap AG & Co. KG · DE

Inventors

Rainer Haeusler · Tuttlingen, DE
Roland-Alois Hoegerle · Tuttlingen, DE
Theodor Lutze · Spaichingen, DE
Norbert Mattes · Mühlheim, DE

Key dates

Filing date	Sep 24, 1998
Grant date	Oct 10, 2000
Priority date	—
Expiry date	Sep 24, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B17/1637
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A surgical instrument is provided for cutting a cranial disc from a skull cap. A cylindrical trepanning cutter is provided with teeth on its frontal edge. The teeth cut in both peripheral directions. A driving means drives the trepanning cutter with a periodically altering direction of rotation through an angle of rotation of substantially less than 360.degree.. The angle is at least large enough for the teeth to be displaced by one tooth spacing along the frontal edge of the cylindrical trepanning cutter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.