US Patent No: 5,989,255

Number of patents in Portfolio can not be more than 2000

Orthopaedic done screw apparatus

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A bone screw apparatus and method of implantation provides a bone screw having an elongated shaft of an oversized length with proximal and distal end portions. The distal end portion of the shaft has a cutting head. The proximal end portion of the shaft is sized and shaped to accept a driver tool, such as a drill chuck. The shaft is externally threaded along a majority of its length. A pair of opposed longitudinally extending circumferentially spaced flat surfaces are provided along the shaft. A removable head with a central opening enables the head to slide along the shaft proximally to distally. A ratcheting mechanism prevents movement of the head along the shaft in but one direction. A central opening of the head is shaped to conform to the shaped surfaces of the shaft, so that the head and shaft can be rotated as a unit by engaging and rotating the head. The tool receptive surface portion of the head includes intersecting external surfaces of the head spaced radially away from the shaft during use.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SMITH & NEPHEW, INC.MEMPHIS, TN553

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holland, Donna D Roswell, GA 6 93
James, Anthony H Bartlett, TN 18 133
Pepper, John R Cheshire, CT 71 630
Sanders, Roy Tampa, FL 40 480

Cited Art

Patent Info (Count) # Cites Year
 
BANK OF AMERICA, N.A. (1)
5,100,405 Locking cap for medical implants 60 1990
 
DANEK GROUP, INC. (1)
5,395,371 Spinal fixation system 94 1993
 
LINVATEC CORPORATION (1)
5,591,207 Driving system for inserting threaded suture anchors 108 1995
 
Other [Check patent profile for assignment information] (1)
5,250,049 Bone and tissue connectors 111 1992

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
INTERVENTIONAL SPINE, INC. (20)
6,632,224 Bone fixation system 28 2001
6,511,481 Method and apparatus for fixation of proximal femoral fractures 44 2001
6,648,890 Bone fixation system with radially extendable anchor 38 2001
6,908,465 Distal bone anchors for bone fixation with secondary compression 37 2001
6,890,333 Method and apparatus for bone fixation with secondary compression 30 2001
6,685,706 Proximal anchors for bone fixation system 45 2001
6,887,243 Method and apparatus for bone fixation with secondary compression 26 2002
7,008,428 Bone fixation system 18 2003
7,824,429 Method and apparatus for spinal fixation 2 2003
6,942,668 Proximal anchors for bone fixation system 29 2003
7,070,601 Locking plate for bone anchors 25 2004
7,556,629 Method and apparatus for bone fixation with secondary compression 14 2004
6,951,561 Spinal stabilization device 101 2004
7,648,523 Method and apparatus for spinal stabilization 6 2005
7,857,832 Method and apparatus for spinal stabilization 5 2005
7,901,438 Method and apparatus for spinal stabilization 1 2005
8,109,977 Method and apparatus for spinal fixation 0 2007
7,993,377 Method and apparatus for spinal fixation 0 2007
7,938,832 Method and apparatus for spinal fixation 1 2007
7,998,176 Method and apparatus for spinal stabilization 1 2008
 
DEPUY SPINE, INC. (5)
8,262,662 Break-off screw extensions 1 2006
7,967,821 Break-off screw extension removal tools 1 2006
8,197,513 Facet fixation and fusion wedge and method of use 0 2007
8,043,334 Articulating facet fusion screw 6 2007
8,133,261 Intra-facet fixation device and method of use 0 2007
 
MILLENNIUM MEDICAL TECHNOLOGIES, INC. (4)
6,746,448 Outrigger for bone fixator 4 2002
7,479,142 Method of fracture fixation 7 2003
7,985,221 External fixator 0 2007
8,137,347 Method of fracture fixation 0 2008
 
ORTHOPEDIATRICS CORPORATION (2)
7,641,677 Compression bone fragment wire 3 2002
7,517,350 Convertible threaded compression device and method of use 0 2004
 
DEPUY SYNTHES PRODUCTS, LLC (1)
8,414,588 Methods and devices for minimally invasive spinal connection element delivery 0 2008
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
8,435,271 Device for fixing soft tissue 0 2011
 
NATIONAL TAIWAN UNIVERSITY HOSPITAL (1)
8,043,347 Device and method for fixing soft tissue 2 2006
 
SDGI HOLDINGS, INC. (1)
7,252,670 Multi-axial bone anchor system 9 2004
 
SYNTHES USA, LLC (1)
7,144,413 Graft fixation system and method 5 2001
 
WARSAW ORTHOPEDIC, INC. (1)
8,409,257 Systems and methods for facet joint stabilization 0 2010
 
Other [Check patent profile for assignment information] (2)
7,666,212 Renew compression screw 5 2005
8,298,273 Renew compression screw 0 2010