Device for rotational stabilization of bone segments

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6645209
APP PUB NO 20020049445A1
SERIAL NO

09968562

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A device for rotational stabilization of bone segments comprising a bone plate, a bone lag screw, and a locking collar. The bone lag screw has a bone-engagement end, a distal end, and a keyed cross-sectional profile, the bone-engagement end configured for engaging a first bone segment. The bone plate has a flat portion for engaging a second bone segment and a barrel portion having an internal bore for slidably receiving the lag screw. The locking collar has a keyed internal profile that mates with the keyed cross-sectional profile of the lag screw to rotationally couple the locking collar and the lag screw when the lag screw is inserted through the locking collar, and an outer surface configured and dimensioned for (1) free rotation, in a first position, within the internal bore of the bone plate barrel portion and (2) frictionally engaging, in a second position, the internal bore of the bone plate barrel portion to resist or prevent rotation of the collar relative to the bone plate, and thereby resist or prevent rotation of the lag screw relative to the bone plate. The frictional engagement is achieved by a deformation of the distal end of the locking collar within the internal bore of the bone plate. This deformation is achieved by the application of force to the collar in the proximal direction.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SYNTHES AG CHURWEST CHESTER, PA35
SYNTHES USA, LLCWEST CHESTER, PA432

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hall, IV Harry Thomas Downingtown, PA 2 88
Kaufmann, Josef Peter Monument, CO 1 49
Tessier, Jeffrey M Monument, CO 2 51

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
4432358 Compression hip screw apparatus 113 1982
4657001 Antirotational hip screw 101 1984
 
HOWMEDICA INTERNATIONAL S. DE R.L. (1)
5454813 Intramedullary intertrochanteric fracture fixation appliance 97 1993
 
ZIMMER TECHNOLOGY, INC. (2)
4530355 Compression screw assembly 55 1982
4612920 Compression hip screw 77 1984
 
DEPUY ACE MEDICAL COMPANY (1)
5749872 Keyed/keyless barrel for bone plates 164 1995
 
DR. HERMANN JEHLE (1)
5007910 Device for compression screwing 52 1989
 
SPHEROFIX AB (1)
5735853 Bone screw for osteosynthesis 298 1996
 
DEPUY ACROMED, INC. (1)
5843082 Cervical spine stabilization method and system 151 1996
 
SMITH & NEPHEW RICHARDS INC. (1)
5032125 Intramedullary hip screw 136 1990
 
PFIZER INC. (1)
5514138 Connector having a stop member 70 1994
 
SYNTHES USA, LLC (1)
5501684 Osteosynthetic fixation device 389 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (5)
* 7503919 Locking compression hip screw 26 2006
* 2007/0270,847 Locking compression hip screw 19 2006
* 2008/0086,136 Percutaneous hip system 1 2006
* 2010/0217,399 BASE PLATE SYSTEM FOR SHOULDER ARTHROPLASTY AND METHOD OF USING THE SAME 49 2010
8470005 Hip nail support assembly 0 2012
 
BIOMET C.V. (1)
7670341 Orthopaedic device with locking barrel 6 2005
 
BIODYNAMICS LLC (1)
* 2008/0177,330 Self-locking screws for medical implants 38 2006
 
SMITH & NEPHEW, INC. (16)
7534244 Orthopaedic plate and screw assembly 14 2004
7527627 Orthopaedic implant and screw assembly 42 2004
* 2005/0149,024 Orthopaedic implant and screw assembly 53 2004
* 2005/0149,025 Orthopaedic plate and screw assembly 28 2004
7799030 Orthopaedic plate and screw assembly 3 2007
7780667 Orthopaedic plate and screw assembly 28 2007
7931652 Orthopaedic plate and screw assembly 5 2007
7883509 Orthopaedic implant and screw assembly 9 2007
8187275 Orthopaedic implant and fastening assembly 3 2007
7918853 Orthopaedic plate and screw assembly 29 2008
8105326 Orthopaedic implant and fastener assembly 8 2009
8449544 Orthopaedic implant and fastener assembly 4 2009
8834469 Orthopaedic implant and fastener assembly 0 2010
8298234 Orthopaedic implant and fastener assembly 9 2010
8617161 Orthopaedic plate and fastener assembly 1 2010
8939978 Orthopaedic plate and screw assembly 0 2011
 
ZIMMER, INC. (1)
* 2008/0234,749 BONE PLATE PROVIDING THREADED LOCKING HEAD SCREW CAPTURE 49 2007
 
ZIMMER GMBH (1)
8808292 Orthopedic screw 0 2008
 
ROCKY RESEARCH (1)
5384101 Method and apparatus for achieving high reaction rates in solid-gas reactor systems 24 1992
 
DEPUY SYNTHES PRODUCTS, INC. (1)
* 2006/0149,248 Surgical nail 18 2005
 
STRYKER EUROPEAN HOLDINGS I, LLC (7)
* 7569055 Osteosynthetic aid 10 2003
* 2004/0147,930 Osteosynthetic aid 3 2003
8734494 Hip fracture device with static locking mechanism allowing compression 2 2008
8398636 Hip fracture device with barrel and end cap for load control 6 2008
* 2008/0269,752 Hip fracture device with barrel and end cap for load control 19 2008
* 2008/0269,807 Hip fracture device with static locking mechanism allowing compression 12 2008
9254153 Hip fracture device with static locking mechanism allowing compression 4 2014
 
CARDINAL HEALTH 247, INC. (1)
9468479 Bone plate 0 2013
 
ACUMED LLC (4)
9463055 Plate-based compliant hip fixation system 0 2014
9433448 Nail-based compliant hip fixation system 0 2014
9433451 Hip fixation system with a compliant fixation element 0 2014
9526542 Hip fixation with load-controlled dynamization 0 2015
 
SYNTHES USA, LLC (2)
7837709 Bone fixation means 1 2004
* 2008/0021,453 Bone Fixation Means 2 2004
 
SPINAL ELEMENTS, INC. (9)
8496691 Side-biased orthopedic fastener retention 8 2006
8496708 Flanged interbody fusion device with hinge 8 2006
8470039 Flanged interbody fusion device with fastener insert and retaining ring 4 2006
8100955 Orthopedic expansion fastener 42 2006
9220547 Flanged interbody fusion device 1 2010
8696721 Orthopedic expansion fastener 4 2011
9265546 Side-biased orthopedic fastener retention 5 2013
8801794 Flanged interbody fusion device with fastener insert and retaining ring 5 2013
9585707 Flanged interbody fusion device with fastener insert and retaining ring 0 2014
* Cited By Examiner