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US 7,521,021 B2Granted
System for in situ processing of a tissue specimen
AssigneeLeica Biosvstems St. Louis LLC
InventorJames B. McCormick
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Abstract
The present invention is directed to a system for use in the preparation in situ of tissue specimens for histological examination. The system includes a cassette, a specimen mounting card and a base mold. The invention also is directed to a method of processing a tissue sample for histological examination which does not require re-orienting the selected cutting plane in the specimen transfer step. Instead, the tissue sample remains oriented in a desired position throughout processing.
Claims8
A system for use in processing a tissue specimen for histological examination comprising:
- a tissue specimen positioning member of a material that removably maintains the tissue specimen in a predetermined position thereon for providing the specimen with a known, consistent orientation throughout processing;
- a carrier member for receiving the positioning member with tissue specimen thereon and for subsequently mounting in a microtome the tissue specimen as processed to be associated with a fixing medium;
- and a base member having a lower recessed chamber sized to receive the tissue specimen positioning member with tissue specimen thereon and to maintain the positioning member therein upon application of a separation force between the positioning member and the tissue specimen for removing the tissue specimen from the base member.
Dependencies are inferred from the claim text.