Ureteral Access Sheath
Uas · Access sheath · Ureteral sheath · Navigator HD · Flexor
A long, thin, slippery-coated sheathSHEETHA covering that wraps around a structure; in procedures, a short hollow tube left in a blood vessel to pass catheters through.Full entry with an inner dilatorDY-lay-terAn instrument used to stretch or widen an opening, canal or passage in the body.Full entry (obturatorOB-too-ray-terA smooth-tipped rod that fits inside a tube, such as a tracheostomy tube or cannula, to guide it in and then is taken out.Full entry ) that has a tapered tip. The dilator locks into the sheath hub; once it is removed the sheath is an open tube. Many are reinforceree-in-FORSTo repeat and support teaching or care that has already been started, so the client remembers and follows it.Full entry with a metal coil so they do not kink.
On the table
What it does, the lengths it comes in and what experienced techs know about it.
What it’s for
Optional in flexible ureteroscopy. It is passed over a guidewire under fluoroscopyfloo-ROS-kuh-peeAn x-ray method that shows moving pictures of the inside of the body in real time.fluor/o glowing (from the fluorescent screen)-scopy looking, viewingFull entry up the ureterYOOR-uh-terOne of the two tubes that carry urine from the kidneys down to the bladder.Full entry , usually to just below the ureteropelvic junction, and the dilatorDY-lay-terAn instrument used to stretch or widen an opening, canal or passage in the body.Full entry is pulled out. The flexible ureteroscope can then go in and out many times, irrigationeer-ih-GAY-shunWashing out a wound, body cavity, tube or eye with a steady flow of liquid.Full entry drains more easily, pressure in the kidney stays lower, and the scope is protected.
Lengths and variants
Named by two numbers: inner then outer diameter in Fr, for example 11/13 or 12/14 Fr. Several lengths; shorter for women and mid-ureterYOOR-uh-terOne of the two tubes that carry urine from the kidneys down to the bladder.Full entry stones, longer for men and kidney stoneKID-nee STOHNA hard, pebble-like lump of minerals that forms inside the kidney.Full entry . Some have suction for dust and fragments.
What experienced techs know
What techs who reach for it every day know about it.Pro
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6 sources
- Fuller JK. Surgical Technology: Principles and Practice. 8th ed. Chapter 24 (Genitourinary Surgery), p. 594
- Hinman. Atlas of Urologic Surgery. 5th ed. Chapter 36 (Ureteroscopic Instrumentation), p. 316-317
- Hinman. Atlas of Urologic Surgery. 5th ed. Chapter 37A (Ureteroscopic Management of Ureteral Calculi), p. 325
- Hinman. Atlas of Urologic Surgery. 5th ed. Chapter 37B (Ureteroscopic Management of Renal Calculi), p. 327-328
- bostonscientific.com
- cookmedical.com
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