Patent ID: 6355015
Filing Date: 2002-03-12
Classification: A61B,A61F,A61M

Abstract:
A medical device for effecting heat treatment and local delivery of a fluid medicament on body tissue presenting a predetermined section of a boundary wall of a passageway in a human or animal body comprising:a catheter for insertion into the passageway to a predetermined insertion position, the catheter being provided with an inflatable balloon structure having a boundary wall which is inflatable against the body tissue when the catheter is in the predetermined insertion position; delivery means for local delivery of the fluid medicament on the body tissue when the catheter is in the predetermined insertion position; and a heating arrangement which is adapted to heat the body tissue when the catheter is in the predetermined insertion position; wherein the delivery means comprises a supply channel for supply of the fluid medicament to the balloon structure and a construction for the boundary wall of the balloon structure which is permeable to the fluid medicament, whereby supply of the fluid medicament to the balloon structure along the supply channel when the catheter is in the predetermined insertion position causes the balloon structure to inflate and fluid medicament to be delivered locally on the body tissue through the boundary wall of the balloon structure, andwherein the heating arrangement comprises a heating element which is adapted to heat the fluid medicament prior to its discharge from the catheter whereby the body tissue is heated by fluid medicament delivered locally thereon through the boundary wall of the balloon structure when the catheter is in the predetermined insertion position.