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 3 343
Walston, D Kenneth 10225 Placita Cresta Feliz, Tucson, AZ 85749 4 351

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Medevelop AB (1)
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Other [Check patent profile for assignment information] (1)
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STRYKER CORPORATION (1)
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INSTITUTET FOR TILLAMPAD BIOTEKNOLOGT (1)
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ZIMMER GMBH (1)
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W. L. GORE & ASSOCIATES, INC. (3)
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TRANQUIL PROSPECTS LTD. (1)
* 4576608 Porous body-implantable polytetrafluoroethylene 192 1983
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (5)
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8313529 Total disc replacement with W-shaped spring elements 0 2010
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7998172 Vertebral facet joint prosthesis and method of fixation 66 2009
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8992533 Vertebral facet joint drill and method of use 19 2010
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8858597 Vertebral facet joint prosthesis and method of fixation 21 2010
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8740949 Methods and apparatus for stabilizing bone 24 2011
9301786 Methods and apparatus for stabilizing bone 10 2011
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Zyga Technology (1)
9833328 System and methods for facet joint treatment 0 2015
* Cited By Examiner