The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1997
Filed:
Mar. 28, 1994
Applicant:
Inventors:
Kam W Leong, Ellicot City, MD (US);
Hungnan Lo, Baltimore, MD (US);
Sudhakar Kadiyala, Baltimore, MD (US);
Assignee:
The Johns Hopkins University School of Medicine, Baltimore, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
424426 ; 264 456 ; 264 458 ; 264 459 ; 264 464 ; 264 466 ; 264 468 ; 264 48 ; 264 53 ; 264 41 ; 435246 ; 4283066 ; 4283084 ; 4283155 ; 623 16 ;
Abstract
A structurally rigid biodegradable foam scaffold useful for cell transplantation is provided. The foam can be loaded with nutrients and/or drugs that elute from the foam during transplant to promote growth of the cells. The foam, which features a continuous network of pores, is fabricated using a novel method involving phase separation and consequent expansion upon sublimation of a liquid solvent, preferably naphthalene.