Spo Research Papers - Academia.edu (original) (raw)

—In this paper,we propose and demonstrate the design of a Pulse Oximeter using MSP430FG439 Microcontroller.The Oxygen Saturation and Heart Rate are the two important key parameters for health monitoring of a patients.The proposed system consists of spo₂ Sensor,MSP430FG439 Pulse Oximeter board With LCD Display,PC.The oxygen saturation is calculated by measuring the ratio between the intensities of two different lights.The heart rate is calculated by measuring the elapsed time between the peaks of IR signal.The measured parameters are then transferred to a PC via Zigbee Module and displayed on lcd. Keyword-Pulse Oximeter,Heart Rate,SpO₂,MSP430FG439 Pulse Oximeter board,LCD Display,Zigbee Module. I. INTRODUCTION Health Monitoring becomes a hot topic today.The very important parameters for health monitoring are Oxygen Saturation and Heart rate.The pulse oximeter is a non-invasive medical device used for measuring Oxygen Saturation and Heart rate.Change in intensity of light transmitted through tissue due to arterial blood pulse can be measured as a voltage signal called the photoplethysmography(PPG).The developed real time pulse oximeter monitoring system consists of pair of LEDs,one in the visible red spectrum (660 nm) and the other in the infrared spectrum(940 nm). There are two methods of sending light,they are transmission and the reflectance. In the transmission method, the emitter and the photo detector are opposite of each other with the finger in-between. The light can then pass through the finger. In the reflectance method, the emitter and photodetector are next to each other on top of the measuring site.The light bounces from the emitter to the detector across the site. The Pulse Oximeter is recommended for the patients in the hospital.It is less expensive compared to other health monitoring devices.It is very widely used for new born infants in the hospital.It is used as an important care tool for monitoring patients.Remote monitoring of patients is also possible,hence Pulse Oximeters are very widely used nowadays.

- by and +1
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- Biomedical Engineering, LCD Display, Heart rate, Pulse Oximeter
- by Andra Maria
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- Spo, POSDRU, Evaluarea ad-hoc, Axa Prioritara 4 POS DRU

Solar Power Optimizer (SPO) for DC Distribution System comprises of a high step-up solar power optimizer (SPO) which efficiently harvests maximum energy from a photovoltaic (PV) panel, energy is output to a dc-micro grid. It integrates coupled inductor and switched capacitor technologies to realize high step-up voltage gain. The leakage inductance energy of the coupled inductor can be recycled to reduce power losses and voltage stress. A low low-conduction resistance and voltage rating switch improves system efficiency by employing the fuzzy logic method for the (MPPT) maximum power point tracking algorithm. It has high tracking accuracy, hence the method is widely used to harvest energy of PV systems. The reduction in power caused by the existing shadow effect on PV panels is an unavoidable problem in a centralized PV system. The use of a micro inverter or ac module has recently been proposed for individual PV panels.

- by GRD JOURNALS and +1
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- PV, Spo, Boost
- by Pradip Bhaskar
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- Blood Pressure, Body Temperature, Spo, Wireless Sensor Network
- by Richard Tucker and +1
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- Pediatrics, Pulmonary Hypertension, Echocardiography, Prospective studies
- by Peter Eastwood
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- Linear models, Prospective studies, Humans, Walking
- by Javier Escobar
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- Treatment Outcome, Oxidative Stress, Risk assessment, Pregnancy
- by Jasvinder Kaur
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- Biomedical Engineering, Dopamine, Humans, Ischemia
- by Ryan Sargent
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- Humans, Anoxia, Wilderness, Pulse Oximetry
- by Kathleen Mussatto
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- Palliative Care, Quality Improvement, Medicine, Humans
- by Ola Saugstad
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- Pediatrics, Humans, Newborn Infant, Spo

Pulmonary Function Tests (PFTs) like Force Vital Capacity (FVC), Force Expiratory Volume in one second (FEV(1)), Peak Expiratory Flow (PEF) and Force Expiratory Flow between 25 and 75% of FVC (FEF(25-75%)) and Oxygen Saturation (SpO(2)) level of 50 healthy inhabitants with respect to rice crop residue burning were investigated for three rice cultivation periods from 2007 to 2009. The subjects were residents of five sampling sites selected in Patiala city. Concentration of Suspended Particulate Matter (SPM), Sulfur dioxide (SO(2)), Nitrogen dioxide (NO(2)) and Particulate Matter (PM) of size less than 10 and 2.5μm (PM(10) and PM(2.5)) were measured by using High Volume Sampler (HVS) and Cascade Anderson Impactor. Results show that rice crop residue burning increases the pollution level in the ambient air, and PFTs undergo a significant decrease in their respective values. No significant change was seen in SpO(2) level during rice crop residue burning. In 2008, an increase of 10μgm(-3...

- by Susheel Mittal CChem FRSC and +1
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- Combustion, Transmission Electron Microscopy, Public Health, Multidisciplinary

Improvement of sport performances at high altitude would require the monitoring of physiological parameters such as heart rate, SpO2, and respiration. However, commercially available devices cannot cope with peculiar measurements conditions, e.g., cold temperatures exclude the use of fingertip/earlobe SpO2 probes and movement artifacts require specific signal enhancement algorithms. We present a new non-invasive monitoring system ergonomically integrated into a T-shirt: It includes 3 multiparameter active dry-electrodes, a data-logger storing and transmitting data, and new processing algorithms reducing artifacts and enhancing signals. A series of tests in controlled conditions demonstrate that a more reliable estimate of the targeted parameters can be achieved. These data strongly suggest the potential advantages of our system to provide insight into high altitude adaptation, planning of training sessions in active subjects exposed to high altitude.

- by Rolf Vetter and +1
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- HR, Multidisciplinary, Spo, High Altitude
- by Dolypona Das
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- Neural Networks, Spo
- by Aldo Bancalari and +2
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- Humans, Female, Male, The
- by Maysam Abbod
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- Sensitivity Analysis, Brain Death, Regression Analysis, Glasgow Coma Scale
- by Randall Moorman and +1
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- Algorithms, Comorbidity, Electrocardiography, Humans
- by Rajendra Singh
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- Wearable Computing, Human Factors, Data Analysis, Automotive Engineering

Biological agents are used in the treatment of neoplastic, autoimmune, and inflammatory diseases and their clinical applications are becoming broader. Following their increased utilization, hypersensitivity reactions linked to these drugs have become more frequent, sometimes preventing the use of first-line therapies. The clinical presentation of hypersensitivity reactions to biological agents ranges from mild cutaneous manifestations to life-threatening reactions. In this scenario, rapid desensitization is a groundbreaking procedure that enables selected patients to receive the full treatment dose in a safe way, in spite of their immediate hypersensitivity reaction to the drug, and protects them against anaphylaxis. The aim of this review is to update and discuss some of the main biological agents used in clinical practice (rituximab, trastuzumab, cetuximab, ofatumumab, tocilizumab, brentuximab, omalizumab, and tumor necrosis factor alpha inhibitor agents) and their associated hype...

- by Mariana Castells
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- Medicine, Humans, Bat, Po

Continuous measurement of oxygen level and pulse rate is very important for aged people, pregnant women and in many other critical situations. This is commonly monitored by a pulse oxymeter. This paper presents a low-cost and a miniaturized pulse oxymeter to continuously measure patient‟s blood-oxygen saturation level (SpO2) and pulse rate. Change in intensity of light transmitted through tissue due to arterial blood pulse can be measured as a voltage signal called the photoplethysmographm (PPG). Oxygenated blood has different light absorption characteristics than deoxygenated blood under red and infra red wavelengths. So the hardware implementation is included placing of two LEDs (red and infra red) on the patient‟s finger and a photo detector on opposite side of the LEDs to get the corresponding PPG signals which are used to estimate the SpO2 by comparing the absorption characteristics of the two different colored light (red and infra red). As the PPG signal is mostly corrupted by...

- by Laxmi Shaw
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- Signal Processing, Spo, PPG
- by Richard Tucker
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- Pediatrics, Pulmonary Hypertension, Echocardiography, Prospective studies