CRYOTHERAPY PLANNING DEVICE AND CRYOTHERAPY DEVICE

摘要

Provided are a therapy device used for cryotherapy and a cryotherapy planning device therefor.  The freezing time and unfreezing time can be determined depending of the size of a therapy region. The cryotherapy device includes a gas supply/exhaust system (100), a control system (200) therefor, and a freezing probe system (300).  The gas supply/exhaust system (100) supplies a freezing gas and an unfreezing gas to a probe (60) of the freezing probe system (300) to freeze/unfreeze of the therapy region near the end of the probe (60) by the Joule-Thomson effect.  The control system (200) controls the gas supply/exhaust system (100) and creates therapy plan data for the control.  The therapy plan data includes a freezing/unfreezing sequence to determine the freezing time and unfreezing time.  The computer in the control system (200) determines the sequence.  The sequence is determined depending on the therapy size of the lesion according to the freezing/unfreezing characteristics of the tissue.