Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis
Patent
1991-04-05
1992-10-20
Isabella, David J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
6048901, 6048911, A61F 202
Patent
active
051566230
ABSTRACT:
A sustained release material to be buried at a position close to a diseased part in a living body to slowly release an impregnated liquid drug includes a core mainly consisting of a ceramic material and having a plurality of pores formed at a predetermined porosity, and a surface layer mainly consisting of a ceramic material, formed around the outer surface of the core, and having a plurality of pores having a pore size or porosity smaller than that of the pores formed in the core.
REFERENCES:
patent: 4351337 (1982-09-01), Sidman
patent: 4455143 (1984-06-01), Theeuwes et al.
patent: 4655766 (1987-04-01), Theeuwes et al.
patent: 4955881 (1990-09-01), Eckenhoff
Hakamatsuka Yasuharu
Irie Hiroyuki
Brittingham D. S.
Isabella David J.
Olympus Optical Co,. Ltd.
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