What is Urethral Sound Used for?
Urethral sounds are a medical device in the form of a tube. It is designed to reach cavities, natural channels of the body, blood vessels. The catheter helps with certain procedures, such as emptying, introducing into the canals, urine leg bags, cavity, vessels of the body fluids, flushing, as well as conducting medical instruments through the catheter. The introduction of a catheter is called catheterization.
Types of urethral sounds
- soft catheters made of flexible, ductile materials, such as rubber or plasticized polyvinyl chloride;
- rigid catheters, most often made of metal.
In the main areas of application, vascular and abdominal sounds are distinguished. The latter includes a very common urinary catheter. Urethral sounds (catheters) are inserted into the urethra to empty the bladder when this is not possible in a natural way.
Other types of catheters are inserted through an incision in the skin into other cavities:
- the gallbladder with cholecystostomy;
- the pelvis of the kidney with nephrostomy;
- the bladder with cystostomy.
A sound is also inserted into unnatural cavities of the body for their purification and drainage (for example, into a cyst, echinococcal bladders, abscesses, and others), special stoma care products are applied around.
Sounds for insertion into blood vessels include such varieties as the central, peripheral venous and arterial cannula. They are used to introduce medicinal solutions into the patient’s body, directly into the blood flow. They also serve to collect blood for various purposes. Catheters are inserted percutaneously. A peripheral catheter is inserted into the superficial veins. There is also a method in which central veins are catheterized from peripheral accesses – large catheters are used to realize this goal.
All types of catheters require fixation. In almost all cases, catheters are fixed to the patient’s skin with a band-aid, suture material or a special fixative. Also, the fixation of the catheter in the cavity is performed by changing the shape after insertion into the body (this applies to various types of cavity non-vascular catheters).
Recently, in medical practice, the Pigtail system has become widespread. This system is the most non-injurious, safe and simple to implement. The polyvinyl catheter has the end in the form of a pigtail – and when it is installed, the ends are twisted, preventing it from falling out. To ensure reliable fixation, a fishing line is placed in the walls of the catheters, which allows you to firmly fix the tip of the catheter at the loop base.