| 摘要 |
A system for providing a continuous passage through a delivery catheter comprising a handle (12) that defines an internal chamber (24). A first tube (26) having a proximal end and a distal end (60) and a first bore, the first tube being fixedly mounted within the handle, wherein the first bore at the distal end of the first tube is shaped to define a first inverse conical surface. A second tube (16) having a proximal end and a distal end and a second bore, the second tube being slidably mounted within the handle, wherein the second bore is in axial alignment with the first bore. A third tube (104) having a proximal end and a distal end and a third bore. |
