Medical elongated body and medical elongated body set

A medical elongated body comprising:

• an elongated catheter body extending in a longitudinal direction from a proximal end of the elongated catheter body to a distal end of the elongated catheter body, the elongated catheter body possessing a proximal portion positioned closer to the proximal end of the elongated catheter body than the distal end of the elongated catheter body, the elongated catheter body also possessing an outer surface;
• a hub fixed to the proximal portion of the elongated catheter body, the hub possessing a proximal end and a distal end;
• a support member connected to the hub, the support member surrounding a portion of the elongated catheter body located distal of the distal end of the hub, the support member possessing an outer surface;
• the elongated catheter body including a groove on the outer surface of the elongated catheter body, an axially extending portion of the support member overlying one portion of the groove, an other portion of the groove being uncovered and exposed to outside the elongated catheter body, the other portion of the groove being distal of the one portion of the groove;
• a drug solution contained in an enclosed part that is located radially inwardly of the outer surface of the support member and radially outwardly of the outer surface of the elongated catheter body, the enclosed part including a partition wall, the enclosed part enclosing the drug solution in a way that prevents the drug solution from flowing into the groove;
• and
• the partition wall portion being breakable by contact with an object so that the drug solution in the enclosed part is free to flow to the groove.

A treatment method comprising:

• percutaneously inserting a medical elongated body through a wound site and into a biological lumen, the medical elongated body comprising:
• a catheter body extending in a longitudinal direction and possessing a proximal portion and an outer surface, the catheter body including a groove on the outer surface of the catheter body;
• a hub fixed to the proximal portion of the catheter body;
• a support member connected to the hub and covering a part of the catheter body, the support member also covering a part of the groove, the support member possessing a distal end and a proximal end;
• a drug solution in an enclosed part that prevents the drug solution in the enclosed part from flowing into the groove, the enclosed part being positioned radially inwardly of an outer surface of the support member and being positioned between the proximal and distal ends of the support member relative to the longitudinal direction, the enclosed part including a partition wall;
• positioning the medical elongated body so that a portion of the groove faces the wound site;
• and
• breaking the partition wall so that the drug solution flows into the groove and is brought into contact with the wound site by way of the portion of the groove facing the wound site.