Surgery – Instruments – Orthopedic instrumentation
Patent
1994-03-08
1995-01-17
Aschenbrenner, Peter A.
Surgery
Instruments
Orthopedic instrumentation
408202, 606172, A61B 1716
Patent
active
053822501
ABSTRACT:
A device to stop the penetration of a cranial drill that is used to pierce the skull during neurosurgical procedures. The device uses a plurality of spacers that each have a body in the form of a cylinder having a bore extending therethrough with a flat disc adjacent the cylindrical body with a plurality of tabs fixed to the disk in a circumferential pattern around the bore and axially aligned therewith. The periphery of the disk having a diameter larger than the cylindrical body portion to form a gripping member. Each of the tabs having an indent positioned on an outer surface and an interior surface of the cylindrical body portion having a bead positioned around the interior diameter of the cylindrical body portion so that the indents in the tabs are adapted to engage and retain a bead of another spacer when the spacers are fitted together to define a drill stop. Each of the plurality of spacers are of different lengths than at least one of the other spacers.
REFERENCES:
patent: 2525669 (1950-10-01), Hainault
patent: 3017643 (1962-01-01), Lehde, Jr.
patent: 3682177 (1972-08-01), Ames et al.
patent: 4039266 (1977-08-01), O'Connell
patent: 4456010 (1984-06-01), Reimels et al.
patent: 4521145 (1985-06-01), Bieler
patent: 4931056 (1990-06-01), Ghajar et al.
patent: 5080535 (1992-01-01), Hirano
patent: 5092717 (1992-03-01), Fischer
Aschenbrenner Peter A.
Johnson & Johnson Professional Inc.
Tatlow Michael Q.
LandOfFree
Cranial drill stop does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cranial drill stop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cranial drill stop will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-744813