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:
Jan. 02, 2018
Filed:
Jan. 31, 2008
Ronald E. Utecht, Volga, SD (US);
Kaia L. Kloster, Hudson, SD (US);
Therese M. Downey, Sioux Falls, SD (US);
Barbara R. Haberer, Hartford, SD (US);
Ronald E. Utecht, Volga, SD (US);
Kaia L. Kloster, Hudson, SD (US);
Therese M. Downey, Sioux Falls, SD (US);
Barbara R. Haberer, Hartford, SD (US);
Alumend, LLC, Sioux Falls, SD (US);
Abstract
Biomaterials are disclosed having unique properties that make it a useful material in adhesives, local drug delivery applications and as filler or bulking material. The biomaterials are strong, safe and easily used as a surgical adhesive. Treated chitosan, modified chitosan or modified and treated chitosan compositions are disclosed displaying strengths suitable for general surgical applications. The materials can be used as a drug delivery vehicle which allows for the localization of the delivered drug as well as a programmable tether which allows for the release of the drug on a timed basis or in response to a physiological state such as the release of proteolytic enzymes. The materials of this invention can also be modified and treated to optimize the retention of water, thereby serving as a useful filler or bulking material.