Joint prosthesis having PTFE cushion

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5507823
SERIAL NO

08306725

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haas, Lawrence M 5468 Gleneagles Dr., Tucson, AZ 85718 3 356
Walston, D Kenneth 10225 Placita Cresta Feliz, Tucson, AZ 85749 4 364

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Other [Check patent profile for assignment information] (1)
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STRYKER CORPORATION (1)
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ZIMMER GMBH (1)
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TRANQUIL PROSPECTS LTD. (1)
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (6)
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FACET SOLUTIONS, INC. (23)
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Biocon, Oy (2)
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7776090 Inter-cervical facet implant and method 113 2005
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8425530 Apparatus for sizing a facet joint 7 2011
 
SYNTHES USA, LLC (2)
8313529 Total disc replacement with W-shaped spring elements 0 2010
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SPINAL ELEMENTS, INC. (36)
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8992533 Vertebral facet joint drill and method of use 22 2010
* 2011/0040,301 VERTEBRAL FACET JOINT DRILL AND METHOD OF USE 62 2010
8858597 Vertebral facet joint prosthesis and method of fixation 24 2010
* 2011/0082,503 VERTEBRAL FACET JOINT PROSTHESIS AND METHOD OF FIXATION 56 2010
8740949 Methods and apparatus for stabilizing bone 27 2011
9301786 Methods and apparatus for stabilizing bone 13 2011
8998953 Vertebral facet joint prosthesis and method of fixation 20 2011
D724733 Interbody bone implant 22 2011
9271765 Vertebral facet joint fusion implant and method for fusion 18 2012
9060787 Method of using a vertebral facet joint drill 20 2012
8740942 Vertebral facet joint prosthesis and method of fixation 28 2013
9820784 Apparatus for spinal fixation and methods of use 0 2013
9421044 Apparatus for bone stabilization and distraction and methods of use 8 2013
8882804 Vertebral facet joint prosthesis and method of fixation 22 2013
9179943 Methods and apparatus for stabilizing bone 16 2014
9839450 Device and method for reinforcement of a facet 0 2014
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D748793 Interbody bone implant 14 2015
D748262 Interbody bone implant 14 2015
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Limber Ltd. (1)
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Zyga Technology (1)
9833328 System and methods for facet joint treatment 0 2015
* Cited By Examiner