The invention relates to an agent delivery catheter, comprising a first hollow tube and a second hollow tube 2 which protrudes from a distal opening of the first hollow tube 1 and defines an agent delivery lumen 3 extending along the entire length of the catheter, wherein: the distal end of the first tube 1 is coupled to the second tube 2 to form an annular cavity 4 between the first tube 1 and the second tube 2, the annular cavity 4 being configured to accommodate a retractable stylet shaft 5； a ceramic member 6 which is disposed at the distal end of the first tube 1, in particular distally with respect to the distal opening of the first tube 1, encompasses the second tube 2 and couples the first tube 1 to the second tube 2, in particular via a third hollow tube 23 which encompasses the first tube 1 and the ceramic member 6； and a protective shrink-fit tube 7 is disposed radially on the outside of the ceramic member 6 and extends over at least the length of the ceramic member 6. Another aspect of the invention relates to an agent delivery system comprising such a catheter and a stylet which comprises a handle portion 15 and a ceramic shaft 5 which is configured to be accommodated within the annular cavity 4 of said catheter, wherein a shrink-fit tube 6 is disposed radially on the outside of the ceramic shaft 5 and in particular extends over at least the length of the ceramic shaft 5.L'invention concerne un cathéter d'administration d'agent, comprenant un premier tube creux et un deuxième tube creux (2) qui fait saillie d'une ouverture distale du premier tube creux (1), et définit une lumière d'administration d'agent (3) s'étendant tout le long du cathéter ； l'extrémité distale du premier tube (1) est raccordée au deuxième tube (2) pour former une cavité annulaire (4) entre le premier tube (1) et le deuxième tube (2), la cavité annulaire (4) étant configurée pour recevoir une tige de stylet rétractable (5) ； un élément en céramique (6) qui est disposé à l'extrémité
