System and method for control of tissue welding

A system and method for welding of biological tissue by applying an RF voltage during a first stage to electrodes of a tissue welding tool; monitoring tissue impedance, and determining a minimum tissue impedance value during the first stage; determining relative tissue impedance; detecting when the...

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Bibliographic Details
Main Authors YURI A FURMANOV, BORIS E PATON, YURII A MASALOV, MYKHAILO P ZAKHARASH, ALEXEI V LEBEDEV, VLADIMIR K LEBEDEV, OLGA N IVANOVA
Format Patent
LanguageEnglish
Published 04.03.2010
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:A system and method for welding of biological tissue by applying an RF voltage during a first stage to electrodes of a tissue welding tool; monitoring tissue impedance, and determining a minimum tissue impedance value during the first stage; determining relative tissue impedance; detecting when the relative tissue impedance reaches a predetermined relative tissue impedance value and starting a second stage; calculating the duration of the second stage as a function of the duration of the first stage; and applying the RF voltage during the second stage to the electrodes of the tissue welding tool.
Bibliography:Application Number: AU20030216294