Patent · US Active

Biodegradable metal alloys

US9863020B2 · kind B2 · utility

1Cited by

2References

19Claims

0Family size

Assignee

University of Pittsburgh—Of the Commonwealth System of Higher Education · US

Inventors

Prashant N. Kumta · Pittsburgh, US
Da-Tren Chou · Pittsburgh, US
Daeho Hong · Pittsburgh, US
Partha Saha · Pittsburgh, US

Key dates

Filing date	Oct 28, 2016
Grant date	Jan 9, 2018
Priority date	—
Expiry date	Oct 28, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C23/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.

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