Abstract: An apparatus for vessel transfer comprising a tubular outer member and an inner slidable member one of which is rigid and the other of which is flexible. After the apparatus has been inserted in the body tissue, the rigid member is withdrawn from the body leaving the flexible member in place. A vein, prosthesis or elastomeric tubing attaching structure is secured to the end of the flexible member so that the flexible member can be used to pull said vein, prosthesis or elastomeric tubing through the body tissues to an elected distant site where the tip of the flexible member has been surgically exposed.

Abstract: There is provided a polymeric bacteriocidal composition comprising a thermoplastic, partially cross-linked polyurethane having --NH--(C.dbd.O)--O-- urethane linkages and/or urea linkages --NH--(C.dbd.O)--NH-- and iodine complexed with a sufficient number of these linkages to provide bacteriocidal properties to said composition. The polyurethane has an average molecular weight between 35,000 and 50,000, an ultimate elongation of 200 to 800% and a Shore A scale hardness of 60 to 95. The composition is shaped into a conventional medical appliance form, e.g. a catheter.