Fluid-assisted medical devices, systems and methods

• US 20070016182A1
• Filed: 03/03/2004
• Published: 01/18/2007
• Est. Priority Date: 03/06/2003
• Status: Active Grant

• Current Assignee: Medtronic Advanced Energy LLC (Medtronic Plc)
• Original Assignee: Tissuelink Medical, Inc. (Medtronic Plc)
• Inventors: Lipson, David, Flanagan, David
• Granted Patent: US 7,909,820 B2
• Time in Patent Office: Days
• US Class Current: 606/34
• CPC Class Codes: A61B 18/12 by passing a current through the tissue to be heated, e.g. high-frequency current
• CPC Class Codes: A61B 2018/00029 open
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00428 Severing
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00595 Cauterization
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/0066 without feedback, i.e. open loop control
• CPC Class Codes: A61B 2018/00744 Fluid flow
• CPC Class Codes: A61B 2018/00779 Power or energy
• CPC Class Codes: A61B 2018/1417 Ball
• CPC Class Codes: A61B 2018/1422 Hook
• CPC Class Codes: A61B 2018/1472 for use with liquid electrolyte, e.g. virtual electrodes

Abstract

Adaptors for electrically coupling between an electrosurgical generator and a bipolar electrosurgical device are provided. In one preferred embodiment, the adaptor comprises a power input connector for coupling the adaptor with a monopolar mode power output connector of the electrosurgical generator, a ground connector for coupling the adaptor with a ground connector of the electrosurgical generator, a first and a second power output connector, each for coupling the adaptor with a first and a second bipolar mode power input connector of the bipolar electrosurgical device, respectively, a monopolar hand switch connector for coupling the adaptor with a monopolar mode hand switch connector of the electrosurgical generator, and at least one bipolar mode hand switch connector for coupling the adaptor with a bipolar mode hand switch connector of the electrosurgical device.

Claims

1. An adaptor for electrically coupling between an electrosurgical generator and a bipolar electrosurgical device, the adaptor comprising:

a power input connector for coupling the adaptor with a monopolar mode power output connector of the electrosurgical generator;

a ground connector for coupling the adaptor with a ground connector of the electrosurgical generator;

a first and a second power output connector, each for coupling the adaptor with a first and a second bipolar mode power input connector of the bipolar electrosurgical device, respectively;

a transformer coupled between the power input connector and the first and second power output connectors;

a monopolar hand switch connector for coupling the adaptor with a monopolar mode hand switch connector of the electrosurgical generator; and

at least one bipolar mode hand switch connector for coupling the adaptor with a bipolar mode hand switch connector of the electrosurgical device.

2. The adaptor according to claim 1 wherein:

the transformer comprises a first coil and a second coil;

the first coil adapted to be coupled to the generator; and

the second coil adapted to be coupled to the bipolar electrosurgical device.

3. The adaptor according to claim 2 wherein:

the first coil comprises a plurality of windings;

the second coil comprises a plurality of windings; and

the number of first coil windings is greater then the number of second coil windings.

4. The adaptor according to claim 1 wherein:

the transformer comprises a first coil and a second coil;

the first coil is coupled at a first end to the power input connector of the adaptor;

the first coil is coupled at a second end to the ground connector of the adaptor;

the second coil is coupled at a first end to the first power output connector of the adaptor; and

the second coil is coupled at a second end to the second power output connector of the adaptor.

5. The adaptor according to claim 1 further comprising:

a first and a second bipolar mode hand switch connector for coupling the adaptor with a first and a second bipolar mode hand switch connector of the electrosurgical device, respectively.

6. The adaptor according to claim 5 wherein:

the first bipolar mode hand switch connector of the adaptor is coupled to the monopolar hand switch connector of the adaptor; and

the second bipolar mode hand switch connector of the adaptor is coupled to the power input connector of the adaptor in parallel with the transformer.

7. The adaptor according to claim 1 wherein:

the bipolar mode hand switch connector of the adaptor is coupled to the power input connector of the adaptor in parallel with the transformer; and

the first power output connector of the adaptor is coupled to the monopolar hand switch connector of the adaptor.

8. The adaptor according to claim 1 wherein:

the transformer comprises a first coil and a second coil; and

the first coil and the second coil are arranged to have a primary voltage and a secondary voltage, respectively;

in phase in the presence of an alternating electrical current.

10. The adaptor according to claim 1 further comprising:

a transformer coupled between the power input connector and the first and second power output connectors.

11. The adaptor according to claim 10 wherein:

the transformer comprises a first coil and a second coil;

the first coil adapted to be coupled to the generator; and

the second coil adapted to be coupled to the bipolar electrosurgical device.

9. An adaptor for electrically coupling between an electrosurgical generator and a bipolar electrosurgical device, the adaptor comprising:

a power input connector for coupling the adaptor with a monopolar mode power output connector of the electrosurgical generator;

a ground connector for coupling the adaptor with a ground connector of the electrosurgical generator;

a first and a second power output connector, each for coupling the adaptor with a first and a second bipolar mode power input connector of the bipolar electrosurgical device, respectively;

a monopolar hand switch connector for coupling the adaptor with a monopolar mode hand switch connector of the electrosurgical generator; and

at least one bipolar mode hand switch connector for coupling the adaptor with a bipolar mode hand switch connector of the electrosurgical device.