Abstract: A porous ceramics body for in vivo or in vitro 1use in which a number of pores are closely distributed in three dimensional directions, adjoining pores thereof being partitioned by wall portions with respective communication ports to bring said adjoining pores into communication with each other such that a series of connected spherical pores are formed therewithin, said porous ceramics body being made of a sintered calcium phosphate body, characterized in that, within said sintered calcium phosphate body, pores each having a diameter of 5 microns (&mgr;m) or more account for 80% or more of all the pores in terms of volume whereas pores having a diameter of less than 5 microns (&mgr;m) account for less than 20% of all the pores in terms of volume as subjected to a mercury porosimeter measurement.
Type:
Grant
Filed:
October 10, 2001
Date of Patent:
March 30, 2004
Assignees:
Toshiba Ceramics Co., Ltd., Independent Administrative Institution National Institute for
Materials Science, Toshiba Denko Co., Ltd.
Abstract: A calcium phosphate porous sintered body which comprises spherical pores communicating with one another substantially throughout the body with a porosity of 55% or more and 90% or less, and has an average diameter of the inter-pore communicating parts of 50 &mgr;m or more, a pore diameter of 150 &mgr;m or more, and a three-point bending strength of 5 MPa or more, and a method for producing the same.
Type:
Grant
Filed:
April 13, 2000
Date of Patent:
January 22, 2002
Assignees:
Toshiba Ceramics Co., Ltd., National Institute for Research in Inorganic
Materials-Science and Technology Agency, Toshiba Denko Co., Ltd.