Spire Corporation

John E Barry

Piran Sioshansi

Raymond J Bricault

Robert S Farivar

Eric J Tobin

Catheters including at least one component having a tissue interfacing surface characterized by a substantially nonleaching surface treatment of antimicrobial metal. The component can be a subcutaneous cuff, and the antimicrobial metal can be silver. The process for implanting the silver atoms can include dry coating the tissue interfacing surface of the catheter by way of ion beam assisted deposition. Alternatively, the silver can be introduced into the tissue interfacing surface by ion implantation.

Catheter having a long-lasting antimicrobial surface treatment

A medical device provided with a subsurface bacteriostatic/bactericidal stratum to a predetermined depth is disclosed. The bacteriostatic/bactericidal stratum is introduced into the medical device by ion implantation of sufficient concentration to impart thereto the desired bacteriostatic/bactericidal property. The acquired bacteriostatic/bactericidal property has a useful life coterminal with the device. The treated medical device remains biocompatible, is non-leaching and, depending on the specific device, also is thromboresistant.

Infection resistant medical devices and process

Polymeric implants provided with coatings of bactericidal compounds in the form of ionized atoms by a vapor process. The polymeric implants include products designed to penetrate or enter the body, such as catheters, shunts connectors and the like. Coatings of bactericidal compounds on the polymeric implants are intended to make their use safe. The coatings are formed thereon in the form of ionized atoms of the compounds by ion-beam-assisted deposition in a vacuum chamber. The vacuum chamber is provided, inter alia, with an evaporator and an ion source mounted in operative association therein, including means for rotatably mounting a plurality of polymeric implants for exposure to the evaporator and the ion source.

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Everett, MA, United States of America

John E Barry