Charu P Mathur

US Patent:

20110190755, Aug 4, 2011

Filed:

Jan 29, 2010

Appl. No.:

12/696910

Inventors:

Charu P. MATHUR - San Diego CA, US
Marshall L. SHERMAN - Cardiff by the Sea CA, US

Assignee:

MEDTRONIC ABLATION FRONTIERS LLC - Minneapolis MN

International Classification:

A61B 18/18

US Classification:

606 33

Abstract:

A medical device is provided, including an ablation system with a generator, at least one ablation element, a patient return electrode, and a feedback system to verify and monitor the electrical connection between the generator and the patient return electrode, as well as contact of the patient return electrode with the patient. If an electrical connection is absent, intermittent, or of low quality, the medical device may also provide notice, a warning or alarm, and may also automatically cease ablation occurring at that time.

US Patent:

20110218526, Sep 8, 2011

Filed:

Mar 3, 2010

Appl. No.:

12/716893

Inventors:

Charu P. MATHUR - San Diego CA, US

Assignee:

Medtronic Ablation Frontiers, LLC - Minneapolis MN

International Classification:

A61B 18/18

US Classification:

606 33

Abstract:

A medical system is provided, including an ablation system having at least one ablation element and a sensor, a generator operable to deliver radiofrequency ablation energy to the ablation element. A power supply defines a duty cycle and provides a voltage to the generator, and the power supply has a duty cycle modulator and an amplitude modulator. A processor is connected to the power supply, the generator, and the sensor. The processor obtains a feedback signal from the sensor, and adjusts the duty cycle modulator and the amplitude modulator according to the feedback signal.

US Patent:

20140012253, Jan 9, 2014

Filed:

Sep 10, 2013

Appl. No.:

14/023328

Inventors:

- Luxembourg, LU
Charu P. Mathur - San Diego CA, US

Assignee:

Medtronic Ardian Luxembourg S.a.r.l. - Luxembourg

International Classification:

A61B 18/18

US Classification:

606 33, 606 34

Abstract:

A medical system is provided, including an ablation system having at least one ablation element and a sensor, a generator operable to deliver radiofrequency ablation energy to the ablation element. A power supply defines a duty cycle and provides a voltage to the generator, and the power supply has a duty cycle modulator and an amplitude modulator. A processor is connected to the power supply, the generator, and the sensor. The processor obtains a feedback signal from the sensor, and adjusts the duty cycle modulator and the amplitude modulator according to the feedback signal.