A method of managing resources of a histological tissue processor, the tissue processor comprising at least one retort (12, 14) selectively connected for fluid communication to at least one of a plurality of reagent resources (26) by a valve mechanism (40), the method comprising the step of: nominating resources according to one of: group, where a group nomination corresponds to a resource's function; type, where a type nomination corresponds to one or more attributes of a resource within a group; station, where a station nomination corresponds to a point of supply of a resource

System and method for histological tissue specimen processing

The description describes a tissue processor (10) for processing tissue samples for histological analysis. The processor comprises two retorts (12, 14), baths (16-22), reagent containers (26), a pump (44), and valve. The valve distrubutes the reagent from one container to either retort. Separate reagent lines connect the wax baths to the retorts (the subject of one claim). A method is described (and claimed), of infiltrating a sample containin a reagent such as a dehydrating agent like an alcohol, where the infiltrating material is heated to a temperature at or above the boiling point of the reagent, to boil off the reagent when the tissue sample is contacted by the infiltrating material. Another claim defines the pressure in the retors as being reduced to lower the boiling point of the reagent.

Histological tissue specimen treatment

A fluid dispensing apparatus includes a fluid reservoir and a dispensing assembly. The dispensing assembly includes a housing and a deformable member that define a metering chamber that is configured to receive a predetermined volume of fluid from the fluid reservoir. The deformable member is deformed from a rest position to an eject position and the deformation causes the volume of the metering chamber to change which results in a change in fluid pressure within the metering chamber. An increase in the fluid pressure within metering chamber causes a predetermined volume of fluid within the metering chamber to be ejected and a decrease in the fluid pressure within the metering chamber causes fluid to be drawn into the metering chamber from the reservoir.

Fluid dispensing apparatus

A configurable tissue processing system is disclosed that includes a plurality of configurable tissue processing stations, each station configured to receive tissue samples and selectively configurable to heat, agitate and apply either a positive pressure or a vacuum pressure to the received tissue samples; a transport mechanism that is configured to transport the tissue samples between the plurality of configurable tissue processing stations; and a control unit coupled to the plurality of configurable tissue processing stations and to the transport mechanism, the control unit controlling the transport mechanism to selectively position the tissue samples in the plurality of configurable tissue processing stations, and the control unit configuring each of the plurality of configurable tissue processing stations to heat, agitate and apply either a positive pressure or a vacuum pressure to the received samples. Also disclosed is a method of configuring the plurality of tissue processing stations.

Rotary tissue processor with configurable stations

A sample, or slide, retaining tray includes a reagent reservoir, or recess, and a reaction chamber. A slide, or other sample container, can be positioned on the sample retaining tray as desired, with a tissue specimen face down, between a platen on the tray and the slide. A reagent from the reservoir is rendered flowable, such as by heating, and flows from the reservoir into the reaction chamber. Optionally, reagents or other fluids can be provided from above, by dripping onto a drip surface of the sample retaining tray, or below via an inlet port in the platen.

Reagent container and slide reaction and retaining tray, and method of operation

Tissue specimen treatment apparatus of the multi-chamber type having a plurality of chambers (22), for instance arranged in a circle, and means for trans­porting a specimen for treatment to selected such chambers in a prescribed sequence, is characterised by a containment vessel (20, 24) for at least the (open) upper ends of the chambers and by cover means (26) movable with and enclosing the transporting means while separating the interior of the containment vessel from the ambient atmosphere The cover means (26) preferably closely overlies the tops of the chambers (22) to minimise the volume of the containment vessel, and is formed with a small volume transfer enclosure (32) to receive a specimen during transport The cover (26) may have a close fit to the containment vessel, sufficient to restrict exchange of gases etc between the external atmosphere and the containment vessel, or more positive sealing arrange­ments may be provided - eg labyrinth, flexible or liquid seals - to prevent flows between the vessel and the environment Additionally or alternatively, positive venting of the containment vessel by withdrawl of its atmosphere may ensure that all leakages are into the vessel

Tissue specimen treatment apparatus

Tissue specimen treater

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Tissue specimen treatment apparatus

Tissue specimen treater