Over the past few decades interventions have been a
major part of medical science and specially the biliary stent inserting for
reducing blockage in duodenum to let the bile like fluids pass through and help
in smooth digestion process is been a great service to mankind. Bile duct when
becomes obstructed, a tube having a camera at its end, is usually sent down the
throat and positioned in the affected area so that it can expand according to
the need and hold the position for smooth functioning. More than thousands of
people have been diagnosed with pancreatic cancer with placing biliary stents
across the globe in recent few years.
Understanding the concept
Stets are tubular devices made up of either plastic
or metals. Several medical processes like ercp or tcp need to be performed to
insert the stent into the desired area of problem. This procedure is done by a
doctor who specialize gastrointestinal procedures. The tube that they insert is
called an internal stent. During the procedure, the patient is given sedatives
so they can’t feel the pain and the throat is numbed. The flexible tube
carrying the stent passes through the intestine under the surveillance of the
doctor (as they can see inside by the camera upon the device) and moved into
the blocked bile duct and the stent is then slid into the bile duct and
adjusted successfully. Transferring the stent through the liver is another
process of stent inserting.
Requirements
Materials required for stent insertion includes
radiopaque guide wire, stent insertion system and dilators. Guide-wire most
often have a stiffer shaft and a tip to make passage of the stricture easier.
Slipping during the stent exchange procedure is controlled by the guide-wires. Biliary stent
manufacturers, nowadays, have come up with
numerous specifications in stents like materials (Teflon, polyethylene or
polyurethane or stainless steel or nickel – titanium alloy), specifications in
diameter, lengths and durability. Metal stents are costly but easily can be
handled but having the restrictions of removing or positioning problem. Plastic
stents are budget friendly and easy to remove or re-positioned. The metal
stents are though self-expanding and can be of uncovered, covered types. The
length of the stent should be chosen to completely bypass the entire length of
the bile duct and must allow at least 5 to 10 mm of the device both above and
below. The manufacturers are keeping therefore each and every need in terms of
specifications to produce biliary stents.
Standards
Many companies are manufacturing biliary stents but
a little survey before going for a particular one depending upon the
specification provided by either the doctor or by the medical institution is
highly recommended to bear the cost and consequences after implantation of the
same. Biliary stent procedure requires severe attention of the doctors and
several endoscopic devices for smooth and successful procedures. Depending upon
several specifications like diameter, length, material the price might get
varied company-wise.
Conclusion
Thus, surveying for the best option and checking for
endoscopy
equipment price is a must do for making the treatment count.
