A safe circuit for the measurement of stimuli pulse amplitude in biomedical devices

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Resumen

In this paper an integrating amplifier aimed at estimating pulse amplitude in implantable stimuli delivery devices is presented. The proposed circuit can integrate during each stimulus the effective voltage being applied to tissue, to later use this measure in a self-calibration procedure or in a closed loop stimulator scheme. The circuit was designed and simulated using a 0.6μm HV CMOS technology, it consumes only 8μA current from the battery when it is turned on, and shows an error below 3% for pulses ranging from 100μs to 5ms, and from 350mV to 15V if the time-voltage product does not saturate the integrating capacitor. The circuit is safe in the sense it is not harmful for the patient in the case of a single (independent) circuit failure. The focus of this work is in a pacemaker application, but the developed circuit block can be incorporated in a wide set of biomedical devices.

Idioma originalInglés
Título de la publicación alojadaEAMTA 2013 - Proceedings of the Argentine School of Micro-Nanoelectronics, Technology and Applications 2013
EditorialIEEE Computer Society
Páginas102-107
Número de páginas6
ISBN (versión impresa)9789871907441
EstadoPublicada - 2013
Evento8th Argentine School of Micro-Nanoelectronics, Technology and Applications 2013, EAMTA 2013 - Buenos Aires
Duración: 4 ago. 201312 ago. 2013

Serie de la publicación

NombreEAMTA 2013 - Proceedings of the Argentine School of Micro-Nanoelectronics, Technology and Applications 2013

Conferencia

Conferencia8th Argentine School of Micro-Nanoelectronics, Technology and Applications 2013, EAMTA 2013
País/TerritorioArgentina
CiudadBuenos Aires
Período4/08/1312/08/13

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