| 摘要 |
593271 An apparatus (100) for testing electrical activity from a biological tissue sample comprises a body (1) provided with a well (4), stimulating means (8) for stimulating a biological sample located in the well (4), and detecting means (9) for detecting electrical activity in the sample. The apparatus further has a fluid inlet means (10) in fluid communication with the well and a fluid outlet means (16) in fluid communication with the well (4). The inlet means (10) comprises an electrically conductive conduit (11A) which is in fluid contact with a fluid flowing, in use, though the outlet means (16). The outlet means comprises an outlet passage provided in the body, and the electrically conductive conduit extends into the outlet passage. The apparatus can provided with an electrically conductive member (19), which is in electrical contact with a fluid contained, in use, in at least one of the well (4), inlet means (10) and outlet means (16). At least one of the stimulating means and detecting means is engaged with the body by a gripping means which comprises an electrically conductive gripping member which engages the electrically conductive member, and the electrically conductive gripping member is electrically connectable to a data recording system which, in use, records the electrical activity from the sample. Alternatively the outlet means can comprises an upwardly open outlet port in fluid communication with the well, and adjustable fluid level regulation means adapted to draw fluid, in use, from the upwardly open outlet port at a required level and the outlet means can comprises an outlet aperture which is substantially fixed in position relative to the body. |
