Reagent delivery system, dispensing device and container for a biological staining apparatus

A method of reagent delivery in an apparatus for processing biological samples arranged on carrier elements, the apparatus comprising a stationary reagent section having one or more reagent containers and a stationary staining section in which at least one carrier element is arranged, the method comprising:

• handling movement of a probe via a probe handling device;
• aspirating a portion of reagent from a reagent container via the probe;
• dispensing, via the probe, a predetermined amount of reagent on a predetermined carrier element;
• wherein the probe includes a continuous probe tubing extending through a rigid probe member and providing fluid communication from a dispensing end of said probe member to a pneumatic pressure regulation device and wherein the rigid probe member is adapted for cooperation with the closure of the reagent container, wherein the continuous probe tubing is provided with a spirally wound probe tubing section.

A method of automated processing of biological samples arranged on carrier elements on a staining apparatus comprising:

• a reagent section comprising one or more reagent containers,
• a staining section in which at least one carrier element is arranged, the method comprising:
• dispensing a portion of reagent onto a predetermined carrier element with a reagent dispensing device;
• and
• handling the reagent dispensing device with a handling device, wherein the reagent dispensing device comprises a continuous probe tubing extending through a rigid probe member and providing fluid communication from a dispensing end of said probe member to a pneumatic pressure regulation device, wherein the continuous probe tubing is provided with a spirally wound probe tubing section.