Patent ID: 9333335
Filing Date: 2016-05-10
CPC Classification: A61M,A61N

Claim Text:
1. An implantable system comprising: an implantable microcatheter comprising a hollow tube with a central lumen extending throughout the length of the tube from a proximal region to a distal region, wherein the bending stiffness of the proximal region is greater than the bending stiffness of the distal region, and the hollow tube has a transition region having a decreasing stiffness gradient from the proximal region to the distal region, wherein the transition of the bending stiffness of the proximal region to the bending stiffness of the distal region continuously decreases from the proximal region to the distal region, wherein the hollow tube wall is free of shielding or armor at least in the distal region, and wherein the catheter is made of biocompatible material suitable for a permanent implantation in venous, arterial or lymphatic networks; and a microcable sized for insertion through the hollow tube from the proximal region of the implantable microcatheter through the distal region, wherein the microcable includes at least one electrode for applying a stimulation pulse or collecting an electrical signal.