An intracardiac defibrillation catheter system comprises a defibrillation catheter (100) and a power supply device (700). The defibrillation catheter (100) includes a first DC electrode group (31G), a second DC electrode group (32G), and memory (110) having an event information storage portion (113). The power supply device (700) includes a DC power supply unit (71), a catheter connecting connector (72), and an arithmetic processing unit (75) having an output circuit (751) for the DC voltage from the DC power supply unit (71) and an internal clock (753). The arithmetic processing unit (75) controls the DC power supply unit (71), stores the serial information of the power supply device (700), and controls writing to and reading from the memory (110) of the defibrillation catheter (100). The arithmetic processing unit (75) writes information relating to carried out defibrillation to the event information storage portion (113) in the memory of the defibrillation catheter (100). The intracardiac defibrillation catheter system makes it possible to record the operation history of a defibrillation catheter.提供一種可記錄去顫導管之動作履歷的心內去顫導管系統。具備有去顫導管(100)與電源裝置(700),去顫導管(100)係具備有:第1DC電極群(31G)、第2DC電極群(32G)、及具有事件資訊記憶部(113)的記憶體(110),電源裝置(700)係具備有:DC電源部(71);導管連接連接器(72);及運算處理部(75),其係控制DC電源部(71)並且具有來自DC電源部(71)的直流電壓的輸出電路(751),且另外記憶電源裝置(700)的序列資訊,而具有內部時鐘(753),控制對去顫導管(100)的記憶體(110)的寫入及讀出,運算處理部(75)係將被執行的去顫的資訊寫入在去顫導管(100)的記憶體的事件資訊記憶部(113)。71...DC電源部72...導管連接連接器73...心電儀連接連接器74...外部開關741...模式切換開關742...電氣能量設定開關743...充電開關744...電氣能量施加開關75...運算處理部753...內部時鐘751...輸出電路752...記憶體76...切換部77...心電圖輸入連接器78...心電位資訊顯示部100...去顫導管110...記憶體111...導管序列記憶部112...初次連接資訊記憶部113...事件資訊記憶部700...電源裝置800...心電儀900...心電位測定手段
