| 摘要 |
<p>A retroperfusion catheter includes a catheter body (10) and a retroperfusion balloon (16) at the distal end (14) of the body (10). The catheter also includes means (68) to monitor the pressure at a location distally of the balloon as well as to infuse liquids and medicants downstream of the balloon rapidly and independently of the retroperfusion procedure. The catheter body (10) also has electrode means (64, 66) proximally of the balloon to sense ECG activity directly within the blood vessel as well as to provide a means by which emergency pacing may be stimulated. The catheter construction includes an inner core (46) formed from a soft flexible tube which is surrounded by an overbraid (48) which lends rigidity and torqability for the catheter, the overbraid being surrounded, in turn, by an outer jacket (50). The distal region (24) of the catheter is bent to define a curve which facilitates steering of the catheter as it is advanced through the patient's vascular system.</p> |
