AUTOMATISCHE KONTROLLVORRICHTUNG ZUM POSITIONIEREN EINES CHIRURGISCHEN INSTRUMENTS

摘要

PCT No. PCT/FR93/00514 Sec. 371 Date Nov. 22, 1994 Sec. 102(e) Date Nov. 22, 1994 PCT Filed May 26, 1993 PCT Pub. No. WO93/24071 PCT Pub. Date Dec. 9, 1993Process and device for use in surgery comprising a conducting element capable of shifting from a first medium to a second medium, which can measure an electrical parameter such as conductance and which can present a variation threshold during its movement when the conducting element is in contact with the second medium. The device can determine the variation of the electrical parameter during the movement of the conducting element in the first medium, as well as detect at least one predefined critical value and produce a signal when this critical value is detected.