Electrosurgical instrument

• US 9,504,512 B2
• Filed: 06/28/2012
• Issued: 11/29/2016
• Est. Priority Date: 06/28/2011
• Status: Active Grant

• Current Assignee: LiNA Medical International Operations AG (LiNA WW Holding AG)
• Original Assignee: LiNA Medical ApS
• Inventors: Poulsen, Henrik Bisgaard
• Primary Examiner(s): FOWLER, DANIEL WAYNE
• Application Number:
  US14/129,902
• Publication Number:
  US 20140142567A1
• Time in Patent Office: 1,615 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 18/085 Forceps, scissors
• CPC Class Codes: A61B 18/10 Power sources therefor
• CPC Class Codes: A61B 18/1233 with circuits for assuring patient safety
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2018/0013 non-sticking
• CPC Class Codes: A61B 2018/00559 Female reproductive organs
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/00642 with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/00708 switching the power on or off
• CPC Class Codes: A61B 2018/00755 Resistance or impedance
• CPC Class Codes: A61B 2018/00875 Resistance or impedance
• CPC Class Codes: A61B 2018/126 bipolar
• CPC Class Codes: A61B 2018/1286 having a specific transformer
• CPC Class Codes: A61B 2018/1407 Loop
• CPC Class Codes: A61B 2018/1412 Blade

Abstract

An electrosurgical instrument and apparatus for use with the instrument

A bipolar electrosurgical instrument for use with an electrosurgical generator. The bipolar electrosurgical instrument incorporates a transformer having an input side or end electrically connected to the electrosurgical generator and an output side or end electrically connected to said bipolar electrosurgical instrument. The inexpensive bipolar electrosurgical instrument can be used with most conventional bipolar electrosurgical generators as well as with bipolar electrosurgical generators specifically designed for use with said instrument.

Claims

1. A method of electrically powering different handheld electrosurgical cutting instruments which require different voltage, the method comprising:

providing a single electrosurgical generator;

providing at least two different handheld electrosurgical instruments each having electrodes for cutting or cauterization and requiring different voltage from the electrosurgical generator,

characterized in that both electrosurgical instruments are connected to receive identical electrical signals from the electrosurgical generator, and

the electrical signal for at least one of the handheld electrosurgical instruments is changed by use of a transformer connected between the electrosurgical generator and the electrodes of one of the electrosurgical instruments.