Journal ArticleDOI
A very low power CMOS mixed-signal IC for implantable pacemaker applications
Louis Wong,S. Hossain,A. Ta,L. Weaver,G. Shaquer,A. Walker,Jörgen Edvinsson,D. Rivas,H. Naas,A. Fawzi,A. Uhrenius,J. Lindberg,J. Johansson,P. Arvidsson +13 more
- Vol. 39, Iss: 12, pp 2446-2456
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TLDR
In this paper, a very low power interface IC used in implantable pacemaker systems is presented, which contains amplifiers, filters, ADCs, battery management system, voltage multipliers, high voltage pulse generators, programmable logic and timing control.Abstract:
Low power consumption is crucial for medical implant devices. A single-chip, very-low-power interface IC used in implantable pacemaker systems is presented. It contains amplifiers, filters, ADCs, battery management system, voltage multipliers, high voltage pulse generators, programmable logic and timing control. A few circuit techniques are proposed to achieve nanopower circuit operations within submicron CMOS process. Subthreshold transistor designs and switched-capacitor circuits are widely used. The 200 k transistor IC occupies 49 mm/sup 2/, is fabricated in a 0.5-/spl mu/m two-poly three-metal multi-V/sub t/ process, and consumes 8 /spl mu/W.read more
Citations
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Proceedings ArticleDOI
A fully integrated preamplifier for cardiac sensing in a HV-CMOS technology
TL;DR: A novel fully integrated preamplifier stage for cardiac activity sensing that takes advantage of the High Voltage CMOS (HV) technology properties to comply with the safety requirements of implantable devices without the addition of external decoupling capacitors.
Journal ArticleDOI
Wireless Pacing Using an Asynchronous Three-Tiered Inductive Power Transfer System
Parinaz Abiri,Arash Abiri,Varun Gudapati,Chih-Chiang Chang,Mehrdad Roustaei,Hamed Bourenane,Usama Anwar,Dejan Markovic,Tzung K. Hsiai +8 more
TL;DR: This proposed stent-like fixation mechanism can bypass the multitude of complications associated with pacemaker wires while wireless power can eliminate the need for repeated procedures for battery replacement.
Proceedings ArticleDOI
Design and Development of a MEMS Stacked Thermoelectric Microwatt Generator
TL;DR: The work presented is novel in terms of vertical stacking of thermocouples resulting in two power sources and lower area occupied by a single thermocouple, unlike conventional structures where they are connected in series on a single plane.
Journal ArticleDOI
Design and Implementation of a Sense Amplifier for Low-Power Cardiac Pacemaker
Pavankumar Bikki,Yenduri Dhiraj +1 more
TL;DR: In this article , a sense amplifier for low-power cardiac pacemaker using the Differential Voltage Current Conveyor (DVCC) is proposed, and the simulations are performed using 130-nm TSMC technology.
Journal ArticleDOI
A high-efficiency charge pump in BCD process for implantable medical devices
TL;DR: In this article, a high-efficiency charge pump circuit composed of cascaded cross-coupled voltage doublers implemented in an isolated bipolar-CMOS-DMOS (BCD) technology for implantable medical devices is presented.
References
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Patent
Meter for measuring battery charge delivered in an implantable device
TL;DR: In this paper, an improved apparatus and method for providing a measurement of the charge depleted from a battery used in an implantable device such as a cardiac pacemaker is described, which is provided not by measuring the voltage level or impedance of the battery, but rather by continuously measuring the electrical current drawn from the battery and integrating that measured current over an integration time period.
Proceedings ArticleDOI
A four chip implantable defibrillator/pacemaker chipset
TL;DR: In this article, a system of four integrated circuits along with discretes that form part of an implantable defibrillator is described, along with a 12-bit integrating analog-to-digital converter that monitors several system utility voltages including battery terminal voltage.
Proceedings ArticleDOI
An 8-bit microcomputer with analog subsystems for implantable biomedical applications
L.J. Stotts,K.R. Infinger +1 more
TL;DR: A description is presented of a single-chip, microcomputer-based pacemaker system in which high-level analog functions are integrated on the same IC as a 8-bit microcomputer and a DC-DC converter.
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