Device and method for removing fastening implements from bone

Details Device and method for removing fastening implements from bone Device and method for removing fastening implements from bone

1995-09-12

1997-12-16

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 80, 606 86, 408201, 408703, A61B 1788

Patent

active

056979355

ABSTRACT:
A device for removing embedded or broken fastening implements from bone, comprises a cylindrical drill bit with a cavity extending internally from a distal end of the bit. The distal end further defines a cutting surface disposed about the opening to the cavity. The interior surface of the cavity defines has a decreasing diameter as one proceeds away from the opening in the distal end, and thus the cutting surface is formed where the radial thickness of the wall of the drill bit is the thinnest. The interior surface of the cavity is susceptible to a galling effect when frictionally engaged by the exterior surface of the fastening implement intended to be removed. The operator places the drill bit around the site of the bone containing the fastening implement to be removed and rotates the bit so as to cut into the bone around the exterior surface of the fastening implement. Galling between the interior surface of the cavity and the exterior surface of the fastening implement causes the implement to adhere to the interior surface of the cavity of the drill bit. The operator then can move the drill bit away from the bone and remove the adhered fastening implement, which then can be discarded with the drill bit.

REFERENCES:
patent: 4573838 (1986-03-01), Omi et al.
patent: 4767244 (1988-08-01), Peterson
AESCULAP: "Instrumentarium zur Entfernung abgebrochener Osteosythesechrauben" Sep. 1985 XPOO2020414 * p. 3, bottom section; p. 3, top section, Extraktionshulse, mit innenliegendem . . ..

Affiliated with

Also associated with

Rating

Device and method for removing fastening implements from bone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and method for removing fastening implements from bone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for removing fastening implements from bone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-201583