Refrigeration – Storage of solidified or liquified gas – Including cryostat
Reexamination Certificate
2007-08-21
2007-08-21
Ali, Mohammad M. (Department: 3744)
Refrigeration
Storage of solidified or liquified gas
Including cryostat
C062S381000
Reexamination Certificate
active
11111431
ABSTRACT:
An apparatus and method for preparing frozen tissue specimens includes a base supporting a pair of rotary motion platforms and a center platform. The rotary motion platforms are movable from an open, side-by-side position to a closed, center platform-covering position. The rotary motion platform includes a plurality of cryogenic discs, each identified for receiving a plurality of tissue samples. The center platform includes a plurality of cryogenic discs, each having a plurality of bores for receiving object holders thereon, each object holder for receiving a frozen specimen thereon. The center platform cryogenic discs each have a channel system with intersecting peripheral, chordal and radial channels. A moistening tray includes structure having a closed, object holder wetting position and an open, object holder elevating position. Further disclosed is the use of a tissue orientation map, usable on temporary tattoos and tissue receiving sheets for specimen orientation and mapping of tumor roots. Also disclosed are labels and identification methods, fiber-reinforced embedding compounds and the use of treated polyester sheets for tissue specimen placement.
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Ali Mohammad M.
McMahon John C.
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