What is a medical catheter?

Sun Medical Catheters

The medical catheter is a tube that will be placed into a cavity of the human body. Sun Medical Catheters are also placed into human body ducts and/or vessels. The purpose of these catheters is to make provision for the administration of fluids, gases and medications. This administration is also needed to drain human bodily fluids or urine from the body. Chest drainage tubes, and intravenous and urinary catheters are typical medical examples.

New protocols are now in place in regard to responding to cardiac arrhythmias using radio frequency energy alongside of catheterization. Do note that the use of large catheters on small veins could elevate thrombosis risks for cancer patients. It would appear that steerable catheters used in brain surgery have been influenced by nature. Generally speaking, catheters are thin but flexible. These are called soft catheters.

Thicker but inflexible catheters are generally known as hard catheters. A catheter left in the body, whether on a temporary or permanent basis, is referred to as an indwelling catheter. Interestingly enough, they have been making catheters over thousands of years. In the beginning inflexible metal was used. But today, modern technology makes use of a range of polymers such as silicone rubber and latex.

Silicone polymers are now the most widely chosen materials because of its inertness and the fact that it does not interfere with bodily fluids. But the polymer is weak and breakages could cause complications. For instance, a part of the catheter could get stuck in the body after the catheter itself is removed. The original modern-day catheter was invented during the early nineteenth century. It was the precursor to all those that would be in regular use in hospitals. And that, as far as catheters go, is the story so far.