Walter J Gillespie

US Patent:

20110224663, Sep 15, 2011

Filed:

Apr 23, 2009

Appl. No.:

12/989392

Inventors:

Warren P. Heim - Boulder CO, US
David G. Matsuura - Encinitas CA, US
Walter Dean Gillespie - Carlsbad CA, US
Louise Focht - Del Mar CA, US

Assignee:

Tornier, Inc. - Edina MN

International Classification:

A61B 18/12
A61B 18/18
H02M 7/5387

US Classification:

606 33, 606 34, 363132

Abstract:

A system for providing power suitable for electrosurgery from a self-contained direct current (DC) energy source according to embodiments of the present invention includes a voltage-affecting circuit having an input and an output, wherein the voltage-affecting circuit is configured to receive energy from the DC energy source at the input and provide boosted DC energy at the output, the boosted DC energy having a voltage greater than a voltage of the DC energy source, and an inverter operable to invert the boosted DC energy to alternating current (AC) energy. The inverter may include a bridge circuit including an arrangement of switches and having an input and an output, wherein the boosted DC energy is received at the bridge circuit input, and a bridge controller operable to control the arrangement of switches to selectively connect the bridge circuit input to the bridge circuit output.