Slide preparation station

Details Slide preparation station Slide preparation station

1976-05-25

1977-07-12

Stein, Mervin

Coating apparatus

With vacuum or fluid pressure chamber

118 7, 118 9, 118100, 118120, 427 8, B05C 1104

Patent

active

040347001

ABSTRACT:
An integral, automated hematology slide preparation station is disclosed which includes assemblies for sample mixing, automated smearing and staining in a single unit. A rotary mixing sub-assembly is provided which interchangeably mixes vials of several sizes and requires no clips or auxiliary holding devices for the vials to be mixed. The pushbutton operated smearing or wedging sub-assembly includes a pivotally mounted, self-leveling counterbalanced reciprocating smearing arm which cams the wedging member and which, with a precise drive control produces highly repeatable blood smears containing substantially a monolayer of blood cells. The smearing sub-assembly operates in conjunction with a manually operated slide dispenser and automatic smear dryer. The staining sub-assembly is completely automatic and includes a conveyer system consisting of three synchronized, intermittently driven, conveyer sections. An input section receives the smeared slides, holds them and passes them to a staining section where the slides are carried, smeared side up, in a substantially horizontal position. The position of each slide is automatically sensed, and stain buffer solutions are applied in measured amounts at pre-determined timed intervals to the top of each slide. The slide is then tipped at an angle as it is transferred to an outlet section, rinsed, dried and stacked automatically on edge in an output magazine. Complete integrated electrical control of the system is provided along with an alarm system which signals low solution levels or low storage capacity in the output magazine.

REFERENCES:
patent: 3163404 (1964-12-01), Kraft et al.
patent: 3352280 (1967-11-01), Hughes et al.
patent: 3400726 (1968-09-01), DuGrail
patent: 3589557 (1971-06-01), Johnson
patent: 3667896 (1972-06-01), McCormick et al.
patent: 3854440 (1974-12-01), Astle
patent: 3880111 (1975-04-01), Levine et al.

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