| 摘要 |
<p>A catheter assembly (20) comprises a catheter (22) and a sheath (24) enclosing the catheter to preserve the sterility thereof, the sheath being provided with a plurality of fold lines (26) which form accordion-like pleats (28) to enable a collapse of the sheath at a point of insertion of the catheter into a patient. The sheath is provided at a distal end of the catheter with a flange (30) for engaging a patient during an insertion of the catheter into the patient. A catheter assembly also comprises an anchor balloon (46) attached to the catheter at a distal end thereof, an ancillary balloon (48) attached to the catheter at a point spaced in a proximal direction from the anchor balloon, a tube (50) connecting the ancillary balloon to the anchor balloon so as to enable communication therebetween.</p> |
