<i>In Vivo</i> Oximeter with Fast Dynamic Response

Polanyi, Michael L.; Hehir, Robert M.

doi:10.1063/1.1717679

Cited by 79 publications

(25 citation statements)

References 6 publications

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“…The use of fiberoptics for oximetry began in the early 1960s (Polyani, 1960(Polyani, ,1962Enson, 1962;Kapany, 1967). Oxygen saturation measurements were made from blood in major vessels or the heart using catheterisation.…”

Section: In Vivo Methodsmentioning

confidence: 99%

The Wavelength Dependence Of The Photoplethysmogram And Its Implication To Pulse Oximetry

Crowe¹,

Damianou²

1992

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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The importance of complete opposition of the reflectance probe was examined on an adult finger. False low oxygen saturation readings were recorded with malpositioned probes. A new probe with modified geometry was designed which offered an improved performance in reducing this artifact and further suggestions were given for its possible elimination.Finally, a proposal for a novel, visible multi-wavelength reflection pulse oximeter is presented with the aim of replacing current pulse oximeters in certain situations where their use is questionable.

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Section: In Vivo Methodsmentioning

confidence: 99%

The Wavelength Dependence Of The Photoplethysmogram And Its Implication To Pulse Oximetry

Crowe¹,

Damianou²

1992

Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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“…These two bundles have been used as waveguides, one to guide the filtered light from a tungsten lamp source to the tip of the catheter, the other to guide the back-scattered and diffusely reflected light, modified in its spectral distribution due to blood interaction, into a photocell. The pulses of the source were located at 805 m and 660 m, to measure the oxygen saturation, and at 900 m and 805 m, to measure the dye concentration [23]. The reflected light has been analyzed spectrophotometrically, on the basis of the linear relationship between the measurand and the ratio of the intensities of the two reflected wavelengths [25].…”

Section: Earlier Intensity-modulated Configurationsmentioning

confidence: 99%

“…3). The innovative contribution of the system was its sensing probe, made of two glass fibers bundles located within a catheter (about 150 fibers with about 50 m in diameter each) [22][23][24]. These two bundles have been used as waveguides, one to guide the filtered light from a tungsten lamp source to the tip of the catheter, the other to guide the back-scattered and diffusely reflected light, modified in its spectral distribution due to blood interaction, into a photocell.…”

Section: Earlier Intensity-modulated Configurationsmentioning

confidence: 99%

Fiber optic intensity-modulated sensors: a review in biomechanics

et al. 2012

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Fiber optic sensors have a set of properties that make them very attractive in biomechanics. However, they remain unknown to many who work in the field. Some possible causes are scarce information, few research groups using them in a routine basis, and even fewer companies offering turnkey and affordable solutions. Nevertheless, as optical fibers revolutionize the way of carrying data in telecommunications, a similar trend is detectable in the world of sensing. The present review aims to describe the most relevant contributions of fiber sensing in biomechanics since their introduction, from 1960s to the present, focusing on intensity-based configurations. An effort has been made to identify key researchers, research and development (R&D) groups and main applications.

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“…[28][29][30][31][32][33][34][35][36][37][38][39][40][41][42] In the last years, their expansion has been benefiting from the development of telecommunications and OF communications, in particular, which are offering high-quality, miniaturized, and affordable optoelectronic components at competitive prices.…”

Section: 25mentioning

confidence: 99%

Review of fiber-optic pressure sensors for biomedical and biomechanical applications

Roriz

Frazão

Ribeiro³

et al. 2013

J. Biomed. Opt

196

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Abstract. As optical fibers revolutionize the way data is carried in telecommunications, the same is happening in the world of sensing. Fiber-optic sensors (FOS) rely on the principle of changing the properties of light that propagate in the fiber due to the effect of a specific physical or chemical parameter. We demonstrate the potentialities of this sensing concept to assess pressure in biomedical and biomechanical applications. FOSs are introduced after an overview of conventional sensors that are being used in the field. Pointing out their limitations, particularly as minimally invasive sensors, is also the starting point to argue FOSs are an alternative or a substitution technology. Even so, this technology will be more or less effective depending on the efforts to present more affordable turnkey solutions and peer-reviewed papers reporting in vivo experiments and clinical trials. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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In Vivo Oximeter with Fast Dynamic Response

Cited by 79 publications

References 6 publications

The Wavelength Dependence Of The Photoplethysmogram And Its Implication To Pulse Oximetry

The Wavelength Dependence Of The Photoplethysmogram And Its Implication To Pulse Oximetry

Fiber optic intensity-modulated sensors: a review in biomechanics

Review of fiber-optic pressure sensors for biomedical and biomechanical applications

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