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US007717946B2

(12;

United States Patent

von Oepen et al.

(io) Patent No.: (45) Date of Patent:

US 7,717,946 B2 May 18, 2010

(54) POLYMERIC PLATE BENDABLE WITHOUT THERMAL ENERGY AND METHODS OF MANUFACTURE

(75) Inventors: Randolf von Oepen, Los Altos Hills, CA (US); Alexander Tschakaloff,

Pinneberg (DE)

(73) Assignee: Degima GmbH, Pinneberg (DE)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 356 days.

(21) Appl.No.: 11/146,454

(22) Filed: Jun. 6, 2005

(65) Prior Publication Data

US 2005/0273104 Al Dec. 8, 2005

Related U.S. Application Data

(60) Provisional application No. 60/577,638, filed on Jun. 7, 2004.

(51) Int. CI.

A61B 17/80 (2006.01)

(52) U.S. CI 606/298; 264/323; 606/76;

606/907

(58) Field of Classification Search 606/69 71,

606/76, 280-299, 902-907; 623/23.58, 23.59;

264/294; 156/156; 433/176 See application file for complete search history.

(56) References Cited

U.S. PATENT DOCUMENTS

5,690,631 A * 11/1997 Duncanetal 606/69

5,981,619 A * 11/1999 Shikinami et al 523/113

6,221,075 Bl 4/2001 Tormalaetal.

6,352,667 Bl * 3/2002 English 264/328.17

6,692,498 Bl* 2/2004 Niiranenetal 606/69

[blocks in formation]

An implantable plate for providing support to a bone of a subject when affixed thereto includes a polymeric body of a biocompatible polymer having a desired amount of polymer molecule orientation in a first direction so that the plate can be bent to conform with a contour of the bone of the subject. The polymeric body includes a top surface, a bottom surface, and at least one fastener portion. The fastener portion includes a recess and a fastener hold that is configured for receiving a fastener when affixed to the bone of the subject. A method of manufacturing the implantable plate includes: (1) injection molding a biocompatible polymeric composition into a polymeric body within an injection mold; (2) removing the polymeric body from the injection mold; and (3) forming at least one fastener hole within polymeric body.

17 Claims, 10 Drawing Sheets

300

Page 2

FOREIGN PATENT DOCUMENTS WO WO 2005/120370 12/2005

OTHER PUBLICATIONS

Christiane Konig et al., Autosterilization of biodegradable implants by injection molding process, printed from the website: http://www3.

interscience.wiley.com/cgi-bin/abstract/44214/ABSTRACT on May 21, 2005, (2 pages).

C. Mauli Agrawal et al., Biodegradable polymeric scaffolds for musculoskeletal tissue engineering, Copyright 2001 John Wiley & Sons, Inc. (10 pages).

U.S. Appl. No. 60/577,638, filed Jun. 7, 2004, von Oepen, et al. * cited by examiner

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