IP Library Granted Patent US 11,376,349
Granted Patent B2
US 11,376,349 · App. 14/045,011 · Granted Jul 5, 2022

Biodegradable iron-containing compositions, methods of preparing and applications therefor

Inventors: Prashant N. Kumta (Pittsburgh, PA); Sung Jae Chung (Pittsburgh, PA); Partha Saha (Pittsburgh, PA); Oleg Velikokhatnyi (Pittsburgh, PA); Moni Kanchan Datta (Pittsburgh, PA); Dae Ho Hong (Pittsburgh, PA); Da-Tren Chou (Pittsburgh, PA)
Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
A61L31/022A61L31/148C22C38/00C22C38/002
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Quick Facts
Patent No.
US 11,376,349
App. No.
14/045,011
Granted
Jul 5, 2022
Kind
B2
Abstract

Biodegradable compositions containing from 10.0 to 95.0 weight percent iron for use in preparing medical devices. These biodegradable compositions exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions also include one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique and high energy mechanical alloying followed by compaction and sintering, film deposition techniques, such as, pulsed laser deposition (PLD), as well as melting, casting, homogenization and extrusion methods. The resulting compositions and the medical devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.

Claims (5)

1. A biodegradable iron-based alloy, consisting of:

2.9 weight percent of magnesium;

5.8 weight percent of calcium;

38.1 weight percent of zinc; and

53.2 weight percent of iron.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jul 29, 2014
From: UNIVERSITY OF PITTSBURGH
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 033442/0569 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 4, 2013
From: KUMTA, PRASHANT N.; CHUNG, SUNG JAE; SAHA, PARTHA; VELIKOKHATNYI, OLEG; DATTA, MONI KANCHAN; HONG, DAE HO; CHOU, DA-TREN
To: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
Reel/Frame 031712/0103 →
Continuity (2)
Provisional Application 61710338 · Oct 5, 2012
Related Publication 20140097277A1 · Apr 10, 2014