Document Detail


A compact nanopower low output impedance CMOS operational amplifier for wireless intraocular pressure recordings.
MedLine Citation:
PMID:  18003395     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Wireless sensing has shown potential benefits for the continuous-time measurement of physiological data. One such application is the recording of intraocular pressure (IOP) for patients with glaucoma. Ultra-low-power circuits facilitate the use of inductively-coupled power for implantable wireless systems. Compact circuit size is also desirable for implantable systems. As a first step towards the realization of such circuits, we have designed a compact, ultra-low-power operational amplifier which can be used to record IOP. This paper presents the measured results of a CMOS operational amplifier that can be incorporated with a wireless IOP monitoring system or other low-power application. It has a power consumption of 736 nW, chip area of 0.023 mm2, and output impedance of 69 Omega to drive low-impedance loads.
Authors:
Russell P Dresher; Pedro P Irazoqui
Related Documents :
1532035 - Nitrovasodilators as a new class of ocular hypotensive agents.
12580895 - Randomized clinical trial of the efficacy and safety of tropicamide and phenylephrine i...
10933015 - Effect of iop elevation on matrix metalloproteinase-2 in rabbit anterior chamber.
3946535 - Effect of adding betaxolol to dipivefrin therapy.
12627735 - Model-based assessment of autonomic control in obstructive sleep apnea syndrome.
7361575 - Imipramine cardiotoxicity: an electrocardiographic and haemodynamic study in rabbits.
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference     Volume:  2007     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2007  
Date Detail:
Created Date:  2007-11-16     Completed Date:  2008-03-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6056-9     Citation Subset:  IM    
Affiliation:
Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609 USA. rdresher@purdue.edu
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Amplifiers, Electronic*
Computer-Aided Design
Electric Impedance
Equipment Design
Equipment Failure Analysis
Humans
Intraocular Pressure / physiology*
Miniaturization
Nanotechnology / instrumentation*,  methods
Reproducibility of Results
Semiconductors
Sensitivity and Specificity
Telemetry / instrumentation*
Tonometry, Ocular / instrumentation*,  methods

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Analysis of specific absorption rate and current density in an energy transmission system for a wire...
Next Document:  The P. CEZANNE Project: innovative approaches to continuous glucose Monitoring.