transfer of fertilized embryos, from in vitro fertilization, or sperm, during artificial insemination, into the uterus.administration of anaesthetic medication into the epidural space, the subarachnoid space, or around a major nerve bundle such as the brachial plexus.direct measurement of intracranial pressure.direct measurement of blood pressure in an artery or vein.angioplasty, angiography, balloon septostomy, balloon sinuplasty, cardiac electrophysiology testing, catheter ablation.administration of intravenous fluids, medication or parenteral nutrition with a peripheral venous catheter or central venous catheter.pigtail catheter: used to drain air from around the lung ( pneumothorax).drainage of urine from the kidney by percutaneous (through the skin) nephrostomy.The suprapubic catheter is inserted through the lower part of the abdomen directly into the urinary bladder. When the urethra is damaged, suprapubic catheterisation is used instead. Draining urine from the urinary bladder as in urinary catheterization, using intermittent catheters or Foley catheter inserted through urethra.Placement of a catheter into a particular part of the body may allow: "Catheter" (from Greek καθετήρ kathetḗr) comes from the Greek verb καθίεμαι kathíemai, meaning "to thrust into" or "to send down" because the catheter allowed fluid to be "sent down" from the body. Special types of catheters, also called probes, are used in preclinical or clinical research for sampling of lipophilic and hydrophilic compounds, protein-bound and unbound drugs, neurotransmitters, peptides and proteins, antibodies, nanoparticles and nanocarriers, enzymes and vesicles. Functionally, they allow drainage, administration of fluids or gases, access by surgical instruments, and also perform a wide variety of other tasks depending on the type of catheter. A permanently inserted catheter may be referred to as a "permcath" (originally a trademark).Ĭatheters can be inserted into a body cavity, duct, or vessel, brain, skin or adipose tissue. A catheter left inside the body, either temporarily or permanently, may be referred to as an "indwelling catheter" (for example, a peripherally inserted central catheter). In most uses, a catheter is a thin, flexible tube ( soft catheter) though catheters are available in varying levels of stiffness depending on the application. The process of inserting a catheter is catheterization. Catheters are manufactured for specific applications, such as cardiovascular, urological, gastrointestinal, neurovascular and ophthalmic procedures. Catheters are medical devices that can be inserted in the body to treat diseases or perform a surgical procedure. In medicine, a catheter (/ˈkæθətər/) is a thin tube made from medical grade materials serving a broad range of functions.
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