The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2012
Filed:
Oct. 24, 2006
Steven P. Buysse, Longmont, CO (US);
Bret S. Felton, Erie, CO (US);
David N. Heard, Boulder, CO (US);
David Keppel, Longmont, CO (US);
Ronald J. Podhajsky, Boulder, CO (US);
Dale F. Shmaltz, Fort Collins, CO (US);
Robert H. Wham, Boulder, CO (US);
Edward C. Meagher, Greenlawn, NY (US);
Kate R. Lawes, Austin, TX (US);
David A. Schechter, Longmont, CO (US);
Chelsea Shields, Portland, OR (US);
Philip M. Tetzlaff, Austin, TX (US);
Jeremy S. James, Highlands Ranch, CO (US);
Steven P. Buysse, Longmont, CO (US);
Bret S. Felton, Erie, CO (US);
David N. Heard, Boulder, CO (US);
David Keppel, Longmont, CO (US);
Ronald J. Podhajsky, Boulder, CO (US);
Dale F. Shmaltz, Fort Collins, CO (US);
Robert H. Wham, Boulder, CO (US);
Edward C. Meagher, Greenlawn, NY (US);
Kate R. Lawes, Austin, TX (US);
David A. Schechter, Longmont, CO (US);
Chelsea Shields, Portland, OR (US);
Philip M. Tetzlaff, Austin, TX (US);
Jeremy S. James, Highlands Ranch, CO (US);
Covidien AG, , CH;
Abstract
An electrosurgical generator is disclosed. The generator includes a microprocessor configured to generate a target impedance trajectory having at least one slope. The target impedance trajectory includes a plurality of target impedance values. The microprocessor is configured to drive tissue impedance along the target impedance trajectory by adjusting the output level to substantially match tissue impedance to a corresponding target impedance value. The microprocessor is further configured to compare tissue impedance to a threshold impedance value and adjust output of the electrosurgical generator when the tissue impedance is equal to or greater than the threshold impedance.