| 摘要 |
H:/seg/Interwoven/NRPortbl/DCC/SCG/6582636_I.DOC-6/08/2014 A catheter for delivering an agent from a supply to targeted tissue of a mammalian body comprising a first elongate tubular member having a proximal opening and a distal end wall, a second elongate tubular member adapted for coupling to the supply, the second elongate tubular member having a portion extending through first elongate tubular member and a distal end extending beyond the end wall, the first and second tubular members forming an annular cavity within the first tubular member, and a stiffening member having at least a portion disposed within the annular cavity for facilitating accurate placement of the distal end relative to the targeted tissue in the mammalian body and removeable from the annular cavity after such placement without removal of the second elongate tubular member from the mammalian body. |
