US Patent No: 5,507,823

Number of patents in Portfolio can not be more than 2000

Joint prosthesis having PTFE cushion

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Importance

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Abstract

A joint prosthesis for interconnecting the ends of adjoining bones includes a cushion of expanded PTFE having at least two facets for attachment to the bones. The cushion may or may not include stems for insertion into the bones. An optional sheath surrounds the non-facet surfaces of the cushion for preventing adherence of tissue. The motion of the prosthesis is defined or limited by the orientation of the facets and/or by the porosity of the cushion and/or by an insert within the cushion.

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First Claim

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Patent Owner(s)

  • Assignment data not available. Check USPTO

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haas, Lawrence M 5468 Gleneagles Dr., Tucson, AZ 85718 3 210
Walston, D Kenneth 4585 N. Sugarbush Pl., Tucson, AZ 85749 4 215

Cited Art

Patent Info (Count) # Cites Year
 
W. L. GORE & ASSOCIATES, INC. (3)
4,531,916 Dental implant with expanded PTFE gingival interface 59 1983
5,098,779 Carvable implant material 41 1990
5,049,155 Prosthesis for tensile-load-carrying tissue and method of manufacture 18 1990
 
INSTITUTET FOR TILLAMPAD BIOTEKNOLOGT (1)
5,011,497 Joint prosthesis 38 1990
 
MEDEVELOP AB (1)
5,062,851 Anchoring element for supporting a joint mechanism of a finger or other reconstructed joint 19 1989
 
STRYKER CORPORATION (1)
5,067,964 Articular surface repair 139 1989
 
TRANQUIL PROSPECTS, LTD., A COMPANY OF THE BRITISH VIRGIN ISLANDS (1)
4,576,608 Porous body-implantable polytetrafluoroethylene 118 1983
 
ZIMMER GMBH (1)
5,370,697 Artificial intervertebral disk member 472 1993
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,313,232 An elastomeric mesh hinge primarily for replacement of the finger joints 27 1980

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
GMEDELAWARE 2 LLC (25)
6,610,091 Facet arthroplasty devices and methods 267 2000
6,811,567 Facet arthroplasty devices and methods 244 2002
6,974,478 Prostheses, systems and methods for replacement of natural facet joints with artificial facet joint surfaces 120 2002
7,074,238 Prostheses, tools and methods for replacement of natural facet joints with artificial facet joint surfaces 34 2003
8,163,017 Facet arthroplasty devices and methods 0 2003
8,092,532 Facet arthroplasty devices and methods 0 2003
8,070,811 Facet arthroplasty devices and methods 0 2003
8,066,771 Facet arthroplasty devices and methods 0 2003
7,087,084 Method for replacing a natural facet joint with a prosthesis having an artificial facet joint structure 112 2003
6,949,123 Facet arthroplasty devices and methods 97 2003
8,187,303 Anti-rotation fixation element for spinal prostheses 0 2004
7,051,451 Facet joint prosthesis measurement and implant tools 110 2004
7,691,145 Prostheses, systems and methods for replacement of natural facet joints with artificial facet joint surfaces 13 2004
7,608,104 Prostheses, tools and methods for replacement of natural facet joints with artifical facet joint surfaces 2 2004
7,674,293 Crossbar spinal prosthesis having a modular design and related implantation methods 26 2005
8,398,681 Adjacent level facet arthroplasty devices, spine stabilization systems, and methods 0 2005
7,406,775 Implantable orthopedic device component selection instrument and methods 24 2005
8,066,740 Facet joint prostheses 0 2005
8,221,461 Crossbar spinal prosthesis having a modular design and systems for treating spinal pathologies 0 2005
7,608,106 Facet arthroplasty devices and methods 6 2006
7,290,347 Facet joint prosthesis measurement and implant tools 19 2006
8,231,655 Prostheses and methods for replacement of natural facet joints with artificial facet joint surfaces 0 2006
7,914,556 Arthroplasty revision system and method 0 2006
8,425,557 Crossbar spinal prosthesis having a modular design and related implantation methods 0 2007
8,409,254 Prostheses, tools and methods for replacement of natural facet joints with artificial facet joint surfaces 0 2008
 
KYPHON SARL (25)
7,833,246 Interspinous process and sacrum implant and method 0 2003
7,758,619 Spinous process implant with tethers 13 2004
7,549,999 Interspinous process distraction implant and method of implantation 2 2004
7,695,513 Distractible interspinous process implant and method of implantation 2 2004
7,524,324 System and method for an interspinous process implant as a supplement to a spine stabilization implant 38 2004
7,601,170 Inter-cervical facet implant and method 17 2005
7,591,851 Inter-cervical facet implant and method 21 2005
7,955,356 Laterally insertable interspinous process implant 0 2005
7,918,877 Lateral insertion method for spinous process spacer with deployable member 0 2005
7,621,939 Supplemental spine fixation device and method 3 2005
8,100,944 Inter-cervical facet implant and method for preserving the tissues surrounding the facet joint 0 2005
7,909,853 Interspinous process implant including a binder and method of implantation 3 2005
8,048,117 Interspinous process implant and method of implantation 0 2005
8,172,877 Inter-cervical facet implant with surface enhancements 0 2005
8,128,660 Inter-cervical facet joint implant with locking screw system 0 2005
8,070,778 Interspinous process implant with slide-in distraction piece and method of implantation 0 2006
7,931,674 Interspinous process implant having deployable wing and method of implantation 3 2006
7,749,252 Interspinous process implant having deployable wing and method of implantation 52 2006
7,959,652 Interspinous process implant having deployable wings and method of implantation 0 2006
7,828,822 Spinous process implant 7 2006
8,029,540 Inter-cervical facet implant with implantation tool 0 2006
8,118,838 Inter-cervical facet implant with multiple direction articulation joint and method for implanting 0 2006
7,476,251 Interspinous process apparatus and method with a selectably expandable spacer 18 2006
7,803,190 Interspinous process apparatus and method with a selectably expandable spacer 1 2006
8,012,209 Interspinous process implant including a binder, binder aligner and method of implantation 0 2007
 
WARSAW ORTHOPEDIC, INC. (5)
7,776,090 Inter-cervical facet implant and method 20 2005
7,763,050 Inter-cervical facet implant with locking screw and method 14 2005
8,066,749 Implant for stabilizing a bone graft during spinal fusion 3 2005
8,070,782 Facet fusion implants and methods of use 1 2010
8,425,530 Apparatus for sizing a facet joint 0 2011
 
ACTIVE IMPLANTS CORPORATION (3)
7,572,295 Cushion bearing implants for load bearing applications 8 2002
7,758,653 Implants 8 2003
7,803,193 Knee prosthesis having a deformable articulation surface 5 2004
 
BIOCON OY (2)
6,113,640 Reconstructive bioabsorbable joint prosthesis 51 1997
6,692,499 Surgical fastener for tissue treatment 79 1997
 
BIONX IMPLANTS OY (2)
6,007,580 Joint prosthesis 38 1998
6,551,343 Bioabsorbable surgical fastener for tissue treatment 81 2000
 
SPINAL ELEMENTS, INC. (2)
7,846,183 Vertebral facet joint prosthesis and method of fixation 14 2004
7,998,172 Vertebral facet joint prosthesis and method of fixation 4 2009
 
ZYGA TECHNOLOGY, INC. (2)
8,343,189 Method and apparatus for facet joint stabilization 0 2008
8,394,125 Systems and methods for facet joint treatment 0 2009
 
BLACKSTONE MEDICAL, INC. (1)
6,960,232 Artificial intervertebral disc 23 2003
 
CARDIVA MEDICAL, INC. (1)
7,993,366 Self-tensioning vascular occlusion device and method for its use 0 2004
 
DEPUY ORTHOPAEDICS, INC. (1)
6,869,449 Prosthetic joint component having multiple arcuate bending portions 2 2002
 
JOHNSON & JOHNSON PROFESSIONAL, INC. (1)
6,258,126 Cushioned joint prosthesis 18 1997
 
LIMBER LTD. (1)
7,255,712 Bone growth promoting implant 2 1997
 
ORTHOPEDIC DESIGNS, INC. (1)
6,475,242 Arthroplasty joint assembly 20 1999
 
QUEEN'S UNIVERSITY AT KINGSTON (1)
8,070,777 Method and device for treating abnormal curvature of a spine 0 2008
 
SYNTHES USA, LLC (1)
8,313,529 Total disc replacement with W-shaped spring elements 0 2010
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (2)
5,879,396 Joint prosthesis having PTFE cushion 68 1997
7,935,136 Facet joint fusion devices and methods 0 2005