Spicer M, Pitty D L, Boone K, Obeyesekera P, Connelly D T, Logan-Sinclair R B, Cunningham A D
Department of Biomedical Engineering, Royal Brompton National Heart & Lung Hospital, London, UK.
Med Biol Eng Comput. 1992 Jul;30(4):377-84. doi: 10.1007/BF02446164.
A programmable current stimulator has been developed that allows unipolar current pulses of complex shape, long duration and high current to be generated. The stimulator conforms to the safety requirements for devices connected directly to the heart. It incorporates additional safety features to prevent unintended current being delivered, even under fault conditions. The stimulator has been used to investigate the effects of long duration current pulses on the refractory period of cardiac tissue. The flexibility of the device suggests that it may well have uses in other fields of electrophysiology.
一种可编程电流刺激器已被开发出来，它能够产生形状复杂、持续时间长且电流强度高的单极电流脉冲。该刺激器符合直接连接到心脏的设备的安全要求。它还具备额外的安全特性，即使在故障情况下也能防止意外电流输出。该刺激器已被用于研究长时间电流脉冲对心脏组织不应期的影响。该设备的灵活性表明它很可能在电生理学的其他领域有应用。
