US Patent No: 6,149,688

Number of patents in Portfolio can not be more than 2000

Artificial bone graft implant

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

The present invention provides for an artificial bone graft implant for use as a replacement for living bone material in surgical procedures requiring the use of bone graft material. The implant has a body configured to be implanted into a prepared site in a patient's bone tissue, with the body having a pair of opposed outer surfaces defining the body. A first and a second porous portion form the body with the first and second porous portions having pores of different sizes such that the average pore size of the first porous portion is greater than the average pore size of the second porous portion. The first porous portion of the body is formed in the shape of a core, with the core being in contact with the opposed outer surfaces of the body, and the second porous portion of the body is formed in the shape of an outer shell. The pore size of the first porous portion of the implant allows for the ingrowth of bone tissue and the pore size of the second portion of the implant allows for a load bearing capacity similar to natural bone.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HOWMEDICA OSTEONICS CORP.MAHWAH, NJ467

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bearcroft, Julie A Bartlett, TN 4 90
Brosnahan, Robert 2936 Waterleaf, Germantown, TN 38138 17 511
Small, Laura A Memphis, TN 2 73

Cited Art

Patent Info (Count) # Cites Year
 
ZIMMER DENTAL, INC. (2)
5,306,307 Spinal disk implant 299 1991
5,306,309 Spinal disk implant and implantation kit 554 1992
 
BIOCON OY (1)
4,863,472 Bone graft implant 91 1988
 
KNC NOR ACQUISITION SUB, INC. (1)
5,279,831 Hydroxyapatite prosthesis coatings 65 1992
 
OLYMPUS OPTICAL CO., LTD. (1)
5,152,791 Prosthetic artificial bone having ceramic layers of different porosity 106 1992
 
REGEN CORPORATION (1)
5,258,043 Method for making a prosthetic intervertebral disc 196 1991
 
TDK CORPORATION (1)
4,629,464 Porous hydroxyapatite material for artificial bone substitute 104 1985
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
5,306,308 Intervertebral implant 296 1992
5,769,897 Synthetic bone 91 1994

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
CALCITEC, INC. (21)
7,118,705 Method for making a molded calcium phosphate article 3 2003
7,169,373 Tetracalcium phosphate (TTCP) having calcium phosphate whisker on surface and process for preparing the same 0 2004
7,163,651 Method for making a porous calcium phosphate article 1 2004
7,270,705 Method of increasing working time of tetracalcium phosphate cement paste 2 2004
7,066,999 Process for producing fast-setting, bioresorbable calcium phosphate cements 2 2004
7,182,895 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,157,027 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,128,856 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,122,138 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,115,222 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,097,792 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,122,139 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,122,140 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,118,695 Dual function prosthetic bone implant and method for preparing the same 0 2005
7,083,749 Dual function prosthetic bone implant and method for preparing the same 1 2005
7,119,038 Method for making a porous calcium phosphate article 1 2005
7,097,793 Method for making a porous calcium phosphate article 1 2005
7,083,750 Method for making a porous calcium phosphate article 0 2005
7,976,874 Injectable calcium phosphate cements and the preparation and use thereof 0 2005
7,214,265 Injectable calcium phosphate cements and the preparation and use thereof 2 2005
7,258,735 Process for affecting the setting and working time of bioresorbable calcium phosphate cements 2 2005
 
AMEDICA CORPORATION (9)
6,790,233 Radiolucent spinal fusion cage 42 2002
7,666,229 Ceramic-ceramic articulation surface implants 0 2004
7,780,738 Polymer-ceramic articulation 1 2004
7,758,646 Total disc implant 1 2005
7,695,521 Hip prosthesis with monoblock ceramic acetabular cup 12 2005
7,776,085 Knee prosthesis with ceramic tibial component 3 2005
8,252,058 Spinal implant with elliptical articulatory interface 0 2006
7,771,481 Total disc implant 2 2007
8,123,812 Ceramic-ceramic articulation surface implants 0 2009
 
WARSAW ORTHOPEDIC, INC. (6)
6,673,075 Porous intervertebral spacer 15 2001
7,717,944 Instruments and methods for stabilization of bony structures 6 2004
7,763,055 Instruments and methods for stabilization of bony structures 10 2006
8,361,124 Instruments and methods for stabilization of bony structures 0 2006
7,867,259 Instruments and methods for stabilization of bony structures 4 2007
7,862,595 Instruments and methods for stabilization of bony structures 4 2007
 
TECOMET, INC. (4)
6,599,322 Method for producing undercut micro recesses in a surface, a surgical implant made thereby, and method for fixing an implant to bone 11 2001
6,620,332 Method for making a mesh-and-plate surgical implant 14 2001
7,018,418 Textured surface having undercut micro recesses in a surface 34 2002
7,850,862 Textured surface having undercut micro recesses in a surface 0 2006
 
AGNOVOS HEALTHCARE, LLC (2)
7,754,246 Composite bone graft substitute cement and articles produced therefrom 1 2006
8,025,903 Composite bone graft substitute cement and articles produced therefrom 0 2007
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
7,156,877 Biodegradable/bioactive nucleus pulposus implant and method for treating degenerated intervertebral discs 30 2002
7,641,691 Biodegradable/bioactive nucleus pulposus implant and method for treating degenerated intervertebral discs 2 2006
 
WRIGHT MEDICAL TECHNOLOGY, INC. (2)
7,250,550 Synthetic bone substitute material 10 2004
7,766,972 Synthetic, malleable bone graft substitute material 0 2007
 
ABS CORPORATION (1)
6,632,246 Cartilage repair plug 39 2000
 
AKAGAWA, YASUMASA (1)
7,699,612 Method for fixing an implant, fixing member for the implant and implant composite 0 2004
 
CONCEPT MATRIX, LLC (1)
7,740,658 Intervertebral disk prosthesis methods of use 0 2004
 
HOWMEDICA OSTEONICS CORP. (1)
6,607,557 Artificial bone graft implant 17 2000
 
ISOTIS N.V. (1)
6,511,510 Osteoinductive ceramic materials 23 1999
 
PENTAX CORPORATION (1)
6,776,860 Ceramic composite and manufacturing method thereof 0 1999
 
STANMORE IMPLANTS WORLDWIDE LIMITED (1)
7,241,313 Surgical implant 4 2002
 
THEKEN SPINE, LLC (1)
7,122,057 Method and apparatus for engineered regenerative biostructures such as hydroxyapatite substrates for bone healing applications 11 2002
 
TUTOGEN MEDICAL GMBH (1)
6,379,385 Implant of bone matter 43 2000
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
6,572,654 Intervertebral spacer 29 2000