Cooperative histologic tissue capsule and capsule rack

Claim 1

A cooperative capsule rack and capsule construction for processing, in a processing chamber having sequentially liquidchanging means, histology tissue specimens particularly of electron-microscopy size, comprising in combination: a. a plurality of tissue capsules, each capsule having an expandable, hollow cylindrical body of uniform diameter with a closed bottom and an open end and a closure cap for said open end, said cap being adapted to seat in said open end and to slightly expand said body, said body defining a cavity adapted to receive and retain a microscopy tissue specimen for sequential immersion in fixation and processing liquids; and b. a rack for receiving said capsules, comprising: 1. a plurality of thin discs each having a plurality of indicia-identified holes of a uniform diameter adapted to slidably receive said capsule bodies and with the respective said caps installed to provide with said capsule bodies expanded a substantially tight and fixed engagement between each disc and the capsules mounted thereon; and 2. mounting and carrying means adapted to mount, vertically space and assemble said discs one above the other for handling prior to and during processing and subsequent to processing being adapted to disassembly of said discs for removal of said capsules and the tissues therein.