U.S. patents available from 1976 to present.
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Osteosynthesis device

Patent 5738685 Issued on April 14, 1998. Estimated Expiration Date: Icon_subject January 29, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Device for the adjustable fixing of spinal osteosynthesis rods
Patent #: 5176680
Issued on: 01/05/1993
Inventor: Vignaud, et al.

Bone screw with improved threads
Patent #: 5226766
Issued on: 07/13/1993
Inventor: Lasner

Implant for an osteosynthesis device, in particular for spinal column correction
Patent #: 5261912
Issued on: 11/16/1993
Inventor: Frigg

Lumbar spine fixation apparatus and method
Patent #: 5306275
Issued on: 04/26/1994
Inventor: Bryan

Bone screw
Patent #: 5443467
Issued on: 08/22/1995
Inventor: Biedermann, et al.

Rod anchor seat having a sliding interlocking rod connector
Patent #: 5496321
Issued on: 03/05/1996
Inventor: Puno, et al.

Variable angle spinal screw
Patent #: 5499983
Issued on: 03/19/1996
Inventor: Hughes

Implant interconnection mechanism Patent #: 5562663
Issued on: 10/08/1996
Inventor: Wisnewski, et al.

Inventors

Assignee

Application

No. 545576 filed on 01/29/1996

US Classes:

606/61, Spinal positioner or stabilizer411/308, Involving dissimilarities in the sectional configuration of the threads411/426, Tapered606/72, Orthopedic fastener606/73Threaded fastener element

Examiners

Primary: Buiz, Michael
Assistant: Woo, Julian W.

Attorney, Agent or Firm

Foreign Patent References

  • 0077681B1 EP. 11/12/1986
  • 0 346 521 A1 EP. 12/12/1989
  • 0 348 272 A1 EP. 12/12/1989
  • 0 384 001 A EP. 08/12/1990
  • 0 443 892 A1 EP. 08/12/1991
  • 0 443 894 A1 EP. 08/12/1991
  • 0 465 158 A2 EP. 01/12/1992
  • 0 528 706 A1 EP. 02/12/1993
  • 3722590 FR 12/12/1988
  • 2 624 720 FR. 06/12/1989
  • 39 42 429 A1 DE. 08/12/1990
  • 39 16 198 A1 DE. 11/12/1990
  • 9104027 U DE. 08/12/1991
  • 91 04 027 U DE. 08/12/1991
  • 90 04 240 U DE. 09/12/1991
  • 4012506A1 DE. 10/12/1991
  • 9011312 U DE. 01/12/1992
  • 41 10 002 C1 DE. 05/12/1992
  • 41 07 480 A1 DE. 09/12/1992
  • 2 178 323 GB. 02/12/1987

International Class

A61B 017/56

Foreign Application Priority Data

1993-05-18 DE

Abstract

An osteosynthesis device having a bone screw, particularly a pedicle screw, a fork head that has a groove and a corrective pin seated in the groove of the fork head. A corrective pin is secured against twisting in that the bottom of the groove of the fork head is provided with a plurality of longitudinal slots lying parallel to one another.

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