A low-friction glass or plastic barrel (cylinder) with plunger intended to be used with a needle typically to locate the epidural space. The user advances the needle until a loss of resistance (LOR) is sensed in the plunger, indicating entry into the epidur...
A sterile, low-friction glass or plastic barrel (cylinder) with plunger intended to be used with a needle typically to locate the epidural space. The user advances the needle until a loss of resistance (LOR) is sensed in the plunger, indicating entry into t...