MULTI-MATERIAL SINGLE-PIECE ACTUATOR MEMBER FOR MINIATURE RECIPROCATING PISTON PUMP IN MEDICAL APPLICATIONS

摘要

An implantable medical device including a two piece actuator member which comprises a monocrystaline piston and a magnetizable pole. The monocrystalline piston is positioned within a piston channel having a surface having a titanium-oxide layer. The monocrystalline piston is selectively movable within the piston bore to permit intake and output of fluids.