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:
Mar. 16, 1999
Filed:
Oct. 14, 1997
Eugene Khor, Singapore, SG;
Aileen Wee, Singapore, SG;
Weng Keong Loke, Singapore, SG;
Bee Li Tan, Singapore, SG;
Abstract
Biological materials are treated with an organic chemical agent, dimethyl sulfoxide, to delay the onset of in vivo calcification. The biological materials so treated become resistant to calcification over a prolonged period with no known deleterious effects to the host. The procedure involves the incubation of the natural biological materials in the chemical agent, prior to or after glutaraldehyde fixation, at room temperature or at temperatures up to 60.degree. C. Materials that can be treated with this process include biological materials intended for bioprostheses use, such as porcine aortic valves, porcine aortic valve leaflets, bovine, equine and porcine pericardium, aortic homografts, reconstituted collagen, and the like suitable for invasive, or in-dwelling use in a human or animal body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile