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.

Date of Patent:
Sep. 05, 2023

Filed:

Sep. 05, 2018
Applicant:

Covidien Lp, Mansfield, MA (US);

Inventors:

Donald L. Tonn, Superior, CO (US);

James E. Dunning, Lafayette, CO (US);

William D. Faulkner, Boulder, CO (US);

Jennifer R. McHenry, Denver, CO (US);

Devon E. Scott-Drechsel, Superior, CO (US);

Eric M. Westra, Loveland, CO (US);

Assignee:

COVIDIEN LP, Mansfield, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 18/00 (2006.01); A61B 18/14 (2006.01); A61B 18/12 (2006.01);
U.S. Cl.
CPC ...
A61B 18/1206 (2013.01); A61B 18/1233 (2013.01); A61B 18/1442 (2013.01); A61B 18/1445 (2013.01); A61B 2018/0063 (2013.01); A61B 2018/00589 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00666 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/00767 (2013.01); A61B 2018/00827 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1253 (2013.01); A61B 2018/1266 (2013.01); A61B 2018/1462 (2013.01);
Abstract

The present disclosure includes an electrosurgical generator that controls treatment energy to be provided in a coagulation mode, where the treatment energy has an adjustable voltage ramp rate which can be set to a ramp rate in a range of voltage ramp rates. The generator receives signals from an instrument over time relating to load impedance. When the load impedance is above a threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and decreases, at the adjustable voltage ramp rate, a voltage of the treatment energy. When the load impedance is below the threshold, the generator sets the adjustable voltage ramp rate to a ramp rate in the range of voltage ramp rates, and increases, at the adjustable voltage ramp rate, the voltage of the treatment energy.


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