METHOD OF DETERMINING BOUNDARY OF DAMAGED PART OF TISSUE AT SURGICAL OPERATION Russian patent published in 1994 - IPC

FIELD: medicine; surgery. SUBSTANCE: cut tissue is cooled in the place of contact with surgical knife, and transient electric resistance of the tissue is measured. Knife is periodically turned on and turned off for heating when this resistance achieves specific values. Time of cooling is measured for healthy parts of tissue, and time of cooling in each cycle of tissue, and time of cooling in each cycle of tissue cut is measured as well. Achieved time values are compared one with another and if they change abruptly, the place of functional condition of biologic tissue is detected. EFFECT: reduced traumatization of organs and tissues. 1 dwg