Method of making catheters with additives consolidated into polymer wall
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United States of America Patent
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Aug 17, 2010
Grant Date -
Mar 23, 2006
app pub date -
Sep 22, 2005
filing date -
Sep 22, 2004
priority date (Note) -
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Abstract
A method of making catheters is disclosed in which various additives are consolidated into polymer walls of the catheters. The method includes providing a core, spraying a base polymer material over the outer surface of the core, spraying an additive material over or together with the base polymer material, and consolidating the additive material and the base polymer material together to form the catheter wall. The base polymer material and additive material are each applied as a fine particulate powder or solution of fine particulate, which can be sprayed over an outer surface of the core and the catheter wall as the catheter is formed. The additive material can be selected from several therapeutic agents, diagnostic agents, and/or polymers for modifying the base polymer materials. The additive material can be consolidated with the base polymer material throughout the polymer wall or primarily on the outer surface of the polymer wall.
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