心导管电在极医学研究及临床实践中已经得到日益广泛的应用,然而市售的心导管多是依据病人临床需要设计生产的,其规格常常不能适用小动物,诸如兔、豚鼠的特殊实验研究。鉴于这一需求,笔者利用简单材料,模仿医用导管电极的结构,研制成小型心导管电极。此电极可在小动物记录心腔电图、希氏束电图也可用于心腔内起搏。 Cardiac Catheterization has been widely used in the field of medical research and clinical practice. However, most of the commercially available cardiac catheters are designed and manufactured according to the clinical needs of patients. Their specifications are often not applicable to the special experimental studies of small animals such as rabbits and guinea pigs . In view of this demand, the author made use of simple materials to imitate the structure of medical catheter electrodes and developed a small cardiac catheter electrode. This electrode can be recorded in small animal heart electrocardiogram, His bundle beam can also be used for intracardiac pacing.