Patent ID: 9656018
Date: 2017-05-23
CPC Classifications: A61B,A61M

Claim:
1. A catheter for implantation into tissue, the catheter comprising: a tubing having a lumen and defining at least partially an outer boundary between the catheter and the tissue when the catheter is implanted in the tissue; a healing dummy being insertable in the lumen with clearance so as to prevent tissue ingrowth from the tissue into the lumen when the healing dummy is within the lumen, wherein the healing dummy is removable from the lumen by pulling the healing dummy relative to the tubing out of the lumen; and a perfusion insert being insertable in the lumen when the healing dummy is removed from the lumen, being configured for supplying a perfusion fluid to the tissue so as to initiate interaction between the perfusion fluid and the tissue, and being configured for collecting perfusion fluid after interaction with the tissue; wherein the healing dummy and the tubing are in flush, or the healing dummy protrudes along an insertion direction over the tubing by a distance in a range between 0 and 0.5 mm, wherein the perfusion insert comprises a hollow cylindrical tube delimiting an inner lumen and delimiting together with the tubing an annular lumen, wherein the inner lumen is configured for supplying the perfusion fluid to the tissue and the annular lumen is configured for collecting the perfusion fluid.