Patent · US Expired

Bone replacement or prosthesis anchoring material

US4192021A · kind A · utility

118Cited by

6References

15Claims

0Family size

Assignee

Batelle - Institut e.V. · DE

Inventors

Heinrich Deibig · Frankfurt, DE
Helmut Heide · Kelkheim, DE
Roland Reiner · Basel, CH
Kari Koster · Lorsbach, DE

Key dates

Filing date	May 12, 1977
Grant date	Mar 11, 1980
Priority date	—
Expiry date	May 12, 1997

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L2430/02
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Bone replacement or prosthesis anchoring material on the basis of sintered calcium phosphates which consists of a mixture of calcium phosphates with low or high-molecular-weight organic substances. More specifically, the anchoring material consists of a mixture of calcium phosphates composed of CaO and P.sub.2 O.sub.5 in a quantitative ratio of 2:1 to 4:1 with biodegradable polymers in a ratio of 10:1 to 1:1 of phosphate to polymer and is implantable as a solid body. A method for the production of the material wherein calcium phosphate with a porosity of 15 to 30 volume percent is used and its pores are filled by impregnation with polymer material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.