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 ?
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.
In our study, blind access was conducted in 8 patients for whom the pelvicaliceal system was not imaged by the injection of the contrast medium through the ureteral catheter due to impacted stones.
Of these patients, 4 had a double-J stent insertion, 7 a ureteral catheter insertaion and the remaining 6 were totally tubeless.
1] The most described therapeutic approach is urinary drainage by a nephrostomy and/or a ureteral catheter with systemic and local antifungal administration.
After reflecting the colon medially, both ipsilateral right duplicated ureters were identified, with distinction between the 2 through the dilatation and the presence of a previously positioned ureteral catheter in the upper pole ectopic ureter.
Cystoscopy and retrograde ureteral catheter insertion, posterior subcostal access, one-shot dilation (9Fr dilator, 28F Amplatz dilator), 30F Amplatz working sheath and pneumatic lithotripsy were applied in all operations.
Under general anesthesia and while in the lithotomy position, the patient initially had an open-ended ureteral catheter placed, through which a guide wire was inserted up to the renal pelvis.
In Group 2, once the stone was visually identified, a 4 Fr ureteral catheter (Cook Urological Incorporated, Spencer, IN) was advanced through the ureteroscope until it reached beyond the stone; the ureteroscope was reintroduced again into the ureter beside the ureteral catheter and advanced to the level of the stone.
Hajj inserts ureteral catheters to protect the ureters during fistula repair.