Patent · US Expired

Cranial perforator

US4600006A · kind A · utility

37Cited by
6References
18Claims
0Family size

Inventor

Key dates

Filing dateJan 31, 1984
Grant dateJul 15, 1986
Priority date—
Expiry dateJan 31, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T408/70
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A new drill-type cranial perforator is disclosed of the type which comprises a front drill head assembly made up of a leading inner drill and a trailing outer drill, and a rear support and drive assembly adapted to enable both drills so long as the leading inner drill is encountering a resistive surface and to disable both drills when the leading inner drill stops encountering the resistive surface.

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