Ureteral stent set refers to a collection of medical devices and
instruments specifically designed for the insertion and placement
of a ureteral stent. A ureteral stent is a hollow tube inserted
into the ureter, the tube connecting the kidney to the bladder, to
help restore or maintain the flow of urine.
Here are some common components that may be included in a ureteral
stent set:
Ureteral Stent: The set will typically include the ureteral stent
itself, which is a thin, flexible tube usually made of silicone or
polyurethane. The stent has a hollow lumen and may have a curl on
each end to prevent migration.
Guidewire: A guidewire is a thin wire used to facilitate the
placement of the ureteral stent. It is inserted through a
cystoscope or ureteroscope and guided up into the ureter, serving
as a path for the stent insertion.
Catheter: A catheter may be included to help drain urine from the
bladder or to aid in the insertion of the guidewire.
Dilators: Dilators are tapered instruments used to gently stretch
the ureter and facilitate the passage of the ureteral stent.
Delivery Sheath: A delivery sheath is a tube-like device used to
guide the stent into the ureter and assist with its proper
placement.
Introducer: An introducer may be included to help introduce and
position the stent delivery system.
Syringes: Syringes of various sizes may be provided for the
injection of contrast dye or saline solution for imaging and
flushing purposes.
Accessories: The set may contain additional accessories such as
connectors, clips, or clamps used during the stent placement
procedure.
Some common scenarios where ureteral stents are used and their
typical duration include:
- Ureteral Obstruction: If there is a blockage in the ureter, a stent
may be placed to bypass the obstruction and allow urine to flow.
The stent is generally left in place until the obstruction
resolves, which can be a few days to a few weeks.
- Kidney Stone Treatment: Ureteral stents can be used in conjunction
with other treatments, such as lithotripsy or ureteroscopy, to help
with the passage of kidney stones. In such cases, stents are often
left in place for a few days to a few weeks to aid in stone
clearance and prevent complications.
- Ureteral Surgery or Repair: Following ureteral surgery or repair, a
stent may be placed to provide temporary support and promote
healing. The duration of stent placement can vary depending on the
complexity of the procedure and the surgeon's recommendation,
typically ranging from a few days to a few weeks.
