What is the definition or description of: dialysis catheter insertion?

See below: A dialysis catheter is a conduit to access either the blood stream or the peritoneal cavity to enable to performance of dialysis. Hemodialysis catheters can be acute or temporary or chronic and in that case tunnelled under the skin. Peritoneal catheters are always tunnelled and enter the abdominal wall. Insertion is done with local anesthesia under ultrasound guidance or surgically.

See below: For dialysis to be done, hemodialysis for eg. , a catheter has to be inserted into large blood vessels, so that blood can be pulled out, cleaned in the dialysis machine and sent back into the body. In peritoneal dialysis, this catheter is inserted into the abdominal cavity.

Dialysis catheter: A dialysis catheter is a long catheter that is inserted into a larger vein (the internal jugular vein is most recommended) that allows for blood to be removed so it can be "cleaned" by the dialysis machine and then the "clean" blood re-infused back into the body. If for chronic dialysis, the catheter will be tunneled under the skin and will come out between the collar bone and breast.