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:
Sep. 19, 1995
Filed:
Mar. 31, 1992
Lothar Rupp, Aixheim, DE;
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method for pretreating the surface of a medical device, and of applying a biological coating in a further step, uses the plasma polymerization technique or the plasma grafting technique. A functional monomer, i.e. a monomer with a functional group, or a mixture of a pure monomer and a substance which can provide the required functional groups under spark discharge or under the influence of charge carriers, results in a polymer coating with free functional groups which may react with the biological coating to provide optimum adhesion of the biological coating. The process is carried out in a pressure-tight chamber with an inlet for the functional monomer under low pressure and electromagnetic radiation provided by a radiation source.