US Patent No: 5,152,791

Number of patents in Portfolio can not be more than 2000

Prosthetic artificial bone having ceramic layers of different porosity

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A prosthetic artificial bone having a double-layered structure obtained by forming a high porosity portion having a porosity of from 40 to 90% and a lower porosity portion having a porosity of 50% or less, into an integral body, and wherein the high porosity portion and the lower porosity portion each comprise a ceramics containing calcium and phosphorus.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
OLYMPUS OPTICAL CO., LTD.TOKYO5516

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hakamatsuka, Yasuharu Tokyo, JP 26 422
Irie, Hiroyuki Tokyo, JP 26 431

Cited Art

Patent Info (Count) # Cites Year
 
DEPUY INC. (1)
4,911,720 Particular surface replacement prosthesis 26 1983
 
GENERAL ELECTRIC COMPANY (1)
4,237,559 Bone implant embodying a composite high and low density fired ceramic construction 62 1979
 
KUREHA KAGAKU KOGYO KABUSHIKI KAISHA (1)
4,330,514 Hydroxyapatite, ceramic material and process for preparing thereof 30 1980

Patent Citation Ranking

Forward Cites

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7,163,651 Method for making a porous calcium phosphate article 1 2004
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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
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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
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