catheter

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catheter

Med a long slender flexible tube for inserting into a natural bodily cavity or passage for introducing or withdrawing fluid, such as urine or blood

catheter

[′kath·ə·dər]
(medicine)
A hollow, tubular device for insertion into a cavity, duct, or vessel to permit injection or withdrawal of fluids or to establish patency of the passageway.
References in periodicals archive ?
In our practice, we initially preferred transpelvic transanastomotic catheters, but we recently switched to using the double-J ureteral catheter.
The positioning of the fenestrations of the ureteral catheter was somehow laborious, once it was not easily advanced sometimes, especially nearby the iliac vessels and the ureterovesical junction.
A: 9-mm stone in the renal pelvis; B: ureteral catheter in the retroperitoneum outside the renal pelvis; C: hydrophilic wire coiled in the retroperitoneum; D: flexible ureteroscope inserted antegradely.
Similar to the open technique, ureteral dissection starts after placing a 6 cm segment of a 5 Fr feeding tube or a 4 Fr open-ended ureteral catheter and securing it to the ureter with a 4-0 absorbable suture.
If you suspect ureteral injury and have determined that the bladder is intact, you can take either of two approaches to assessing ureteral patency: 1) perform cystoscopy and insert ureteral catheters in a retrograde manner or 2) incise the dome and insert ureteral catheters under direct visualization.
A blind access procedure was performed in patients whose pelvicaliceal system was not imaged by injection of the contrast through the ureteral catheter due to impacted stones.
The exclusion criteria included ureterocalicostomy (n = 2), simultaneous major surgery (n = 1), drainage using an open-ended ureteral catheter (n = 1), "stentless" pyeloplasty (n = 4), and patients who were lost to follow-up (n = 6).
A ureteral catheter attached to the Foley catheter is an option if ureteral drainage is not an issue for more than 2 days.
Flexible cystourethroscopy was performed and a 5Fr openended ureteral catheter was passed up the left transplanted ureteral orifice over a 0.
An ureteral catheter was placed in the remaining patients and removed on postoperative day 1 with the urethral catheter.
A 5Fr open-ended ureteral catheter was left through the upper pole tract, which was removed on postoperative day 1.