HF surgical device

Patent metadata

Field	Value
Publication number	US-9283030-B2
Application number	US-201113025892-A
Country	US
Kind code	B2
Filing date	Feb 11, 2011
Priority date	Feb 12, 2010
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

An HF surgical device comprising an HF surgical generator, at least one surgical instrument having an active electrode and a neutral electrode, which are connectable to the HF generator. The surgical instrument is connectable to the HF generator via a first wire and the neutral electrode is connectable to the HF generator via second wire. The first and/or second wire is/are equipped with a shield and a decoupling capacitor is disposed at a distal end of each shielded wire.

First claim

The invention claimed is:

1. A high-frequency (HF) surgical device, comprising:
an HF generator;
a surgical instrument having an active electrode and a neutral electrode;
a first wire connecting the active electrode to the HF generator, said first wire being equipped with a first shield;
a second wire connecting the neutral electrode to the HF generator, said second wire being equipped with a second shield;
a first decoupling capacitor disposed at a distal end of the first wire; and
a second decoupling capacitor disposed at a distal end of the second wire,
wherein the first and second shields are grounded via a ground path.

2. The HF frequency surgical device of claim 1 , wherein the first and second shields are connectable to the HF generator via return wires at a central neutral point.

3. The HF surgical device of claim 2 , wherein at least one common mode choke is provided in a return wire.

Assignees

• Hagg Martin
• Selig Peter
• Erbe Elektromedizin

Inventors

• Hagg Martin
• Selig Peter

Classifications

• A61B18/1233

  with circuits for assuring patient safety · CPC title

• A61B18/1402 Primary

  Probes for open surgery · CPC title

• A61B2018/167

  Passive electrodes capacitively coupled to the skin · CPC title