| 摘要 |
There is provided a switching unit for interconnecting the leads of a plurality of multiple-electrode catheters, stimulators and recorder channels. The switching unit comprises electrode switch pairs arranged in columns and rows. A separate stimulator is associated with each column and a separate electrode catheter is associated with each row of electrode switch pairs. Each electrode switch of a row is a multiple position switch and is connected to the electrode catheter associated with that row. The electrode switch pairs designate a pair of electrodes which can be monitored by a recorder channel associated with that electrode switch pair or which can be used to deliver an electrical impulse from a stimulator associated with the column of that electrode switch pair. Each column has a stimulator row-selector switch for determining which electrode switch pair, if any, of that column will be used to deliver such an electrical impulse.
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