Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
2005-04-05
2005-04-05
Gibson, Roy D (Department: 3739)
Surgery
Instruments
Orthopedic instrumentation
C606S060000, C623S013140, C623S013180
Reexamination Certificate
active
06875216
ABSTRACT:
A bioabsorbable interference screw having a tapered profile which extends along substantially the entire length of the screw. The tapered profile makes the screw easy to insert while providing superior fixation resulting from a progressively increasing diameter. Upon insertion, the screw engages cortical bone at the back end of the bone tunnel and fills all but 5-10 mm. of the tunnel, thereby providing increased fixation strength while also promoting fast healing. The screw includes a head provided with a specially designed drive socket with radially extending slots at its outer end for receiving corresponding protrusions on the shaft of screwdriver. The drive socket optimizes the torque capacity of the screw. To maintain wall thickness, the socket has a taper corresponding to the tapered outer profile of the screw. The taper of the socket also permits easy insertion of the tip and shaft of the driver into the screw.
REFERENCES:
patent: 4950270 (1990-08-01), Bowman et al.
patent: 5364400 (1994-11-01), Rego et al.
patent: 5443509 (1995-08-01), Boucher et al.
patent: 5456685 (1995-10-01), Huebner
patent: 5470334 (1995-11-01), Ross et al.
patent: 5951560 (1999-09-01), Simon et al.
patent: 6113604 (2000-09-01), Whittaker et al.
patent: 6214007 (2001-04-01), Anderson
patent: 6283973 (2001-09-01), Hubbard et al.
patent: 6325804 (2001-12-01), Wenstrom et al.
patent: 6368322 (2002-04-01), Luks et al.
patent: 6387129 (2002-05-01), Rieser et al.
patent: 6436100 (2002-08-01), Berger
patent: 6629977 (2003-10-01), Wolf
patent: 0556571 (1993-08-01), None
Arthrex Inc.
Dickstein , Shapiro, Morin & Oshinsky, LLP
Gibson Roy D
Johnson, III Henry M
LandOfFree
Tapered bioabsorbable interference screw for endosteal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tapered bioabsorbable interference screw for endosteal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tapered bioabsorbable interference screw for endosteal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3399393