Surgery – Truss – Pad
Patent
1984-01-31
1986-07-15
Thaler, Michael H.
Surgery
Truss
Pad
1283051, 408139, A61B 1716
Patent
active
046000062
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.
REFERENCES:
patent: 881865 (1908-03-01), Nichols
patent: 1043408 (1912-11-01), Vilbiss
patent: 2842131 (1958-07-01), Smith
patent: 4148593 (1979-04-01), Clark
patent: 4319577 (1982-03-01), Bofinger et al.
patent: 4456010 (1984-06-01), Reimels et al.
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