Abstract: An implantable tube to be implanted in a human body so as to be used as a circulation path, and a coating method thereof are disclosed. The implantable tube is a structure with a lumen coated with a bioactive material containing a material promoting fusing of the structure implanted in the body with ambient tissues. When the structure coated with a bioactive material is implanted in the body, the reaction of fusing the structure with ambient tissues can be promoted to shorten a stabilization period required until dialysis begins. In addition, since a chemical drug, medicament for inducing the generation of a growth factor promoting fusing of the structure with ambient tissues, is used, the structure can be easily coated.

Abstract: A biopsy needle device for collecting a tissue sample by penetrating a living body includes a needle. The needle includes a tip portion having a cross-sectional area getting gradually smaller toward a front end thereof and a tissue container portion arranged behind the tip portion for holding the tissue sample therein. The tip portion includes a rear surface contiguous to the tissue container portion and a recess formed on the rear surface.

Abstract: Disclosed herein are a tube for arteriovenous anastomosis useful in hemodialysis patients and an insert for use in medicinal operation in the body. The tube or the insert are repetitively treated with a medicament on the surface thereof, which provides stable communication between an artery and a vein of a patient under hemodialysis and can greatly reduce stenosis at arteriovenous connections by releasing the medicament at a suitable rate over a prolonged period of time.

Abstract: Disclosed herein is a hemodialysis tube treated with a medicament on the surface thereof, which provides stable communication between the artery and the vein of the patient under hemodialysis and can greatly reduce stenosis at arteriovenous connections. As a base material of the hemodialysis tube, expanded polytetrafluoroethylene is used while the medicament is paclitaxel or rapamycin.