| 摘要 |
<p>A tissue processor is disclosed for processing biological tissue, for example, for mounting on microscope slides. The tissue processor has a valve arrangement in the bottom of a tissue processing chamber 14, whereby a selected one of a plurality of fluid ports 20 formed in a base 12 of the tissue processing chamber may be connected with the interior of the chamber for supply of processing fluid thereto or discharge of fluid from the chamber. In this way different processing fluids may be passed into and removed from the processing chamber in succession, for processing of tissue samples contained in baskets within the chamber. The valve arrangement comprises a rotary disc 22 at the bottom of the chamber and in sealing engagement with a valve surface on the base 12 of said chamber, the valve surface being interrupted by the ports 20 which are connected with respective fluid inlets. The rotary disc is provided with a single port 26 so that by rotating the disc 22 into a selected position the port 26 in the rotary disc 22 can be brought into register with a selected one of the plurality of fluid ports 20 formed in the base of the tissue processing chamber. <IMAGE></p> |
