Nipro SURDIAL - Glossary of Terms

4-1
Chapter 4
DEFINITION
Terms contained in this Operation Manual shall be defined as follows:
z “Acetate” means salt required to prepare acetate dialysate which is used for acetate
dialysis.
z “Acid rinsing” means process to rinse dialysate line by passing dilute acetic acid
through it.
z "Arterial pressure (option)" means pressure in arterial drip chamber determined by
pressure sensor connected with the chamber through detection line.
z “Back siphon” means back flow of waste dialysate toward the machine due to
pressure in dialysate drain line is higher than that in the machine, can be caused by
any reason when machine is stopped.
z "Bicarbonate" means salt required to prepare bicarbonate dialysate which is used
for bicarbonate dialysis.
z “Blood leak detector” means device used to detect blood leak to dialysate optically.
z “Blood line” means the circuit used to circulate extracorporeal blood through
dialyzer.
z “Blood pump” means pump used to circulate blood through dialyzer and blood line.
Roller type pump is used in SURDIAL.
z “Bubble detector” means device used to detect air bubble in blood passing through
venous line.
z “Bypass” means process to drain dialysate through bypass line without passing
dialysate through dialyzer.
z “Clamp” means device used to close blood line by clamping when air bubble is
detected in venous line.
z "Concentration" means Na+ concentration in dialysate derived from measurement
of dialysate conductivity.
z “Conductivity sensor” means the sensor used to measure conductivity of dialysate.
z "Dialysate" means solution dissolving various salt used to remove metabolic waste
and excess fluid from blood through dialyzer membrane.
z “Dialysate concentrate connection ports” means those provided with male
connectors each used to connect with each of acetate or A and B concentrates.
z "Dialysate pressure: DP" means pressure at dialyzer inlet determined by referring to
pressure measured at dialysate line by pressure sensor.
z "Dialysis" means process to remove metabolic waste and excessive fluid from a
circulating extracorporeal blood by diffusion.
z “Dialyzer” means device containing membrane through which metabolic waste and