Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Reexamination Certificate
1999-06-23
2001-07-10
Warden, Jill (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
C422S065000, C422S067000, C422S105000, C118S100000
Reexamination Certificate
active
06258322
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to specimen preparation apparatus and more particularly to an apparatus for automatically smearing a blood sample on a microscope slide to create a blood film for subsequent examination.
The apparatus of this invention preferably forms part of a larger machine which automatically prepares a specimen sample (which may be blood or other types of specimens) from a tube containing the specimen. Such a machine is described, for example, in applicant's earlier Australian Patent Application No. PN 7621 and is fully automatic to the extent that it produces a completed stained slide sample ready for inspection by a Haematologist.
SUMMARY OF THE INVENTION
The object of this invention is to provide an improved apparatus for smearing blood or other specimen samples onto a microscope slide.
Accordingly one broad form of the invention provides specimen preparation apparatus for preparing a specimen smear on a microscope slide, said apparatus comprising a single horizontal drive shaft in the form of a longitudinal screw, a smearer chuck assembly threadably mounted on said shaft, and respective stop means for limiting rotational movement of said chuck assembly in opposite directions, rotation of said shaft causing limited rotational movement of said chuck assembly between said respective stop means and linear movement along said shaft, whereby a smearer blade in said chuck assembly may be caused to move between various operation stations by controlled rotation of said shaft.
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Patent Abstracts of Japan, P-422, p. 154, JP 60-171431 A Sep. 4, 1985, T.ABE.
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Gordon Brian
Shook Hardy & Bacon L.L.P.
Vision Instruments, Inc.
Warden Jill
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