Development and evaluation of an improved technique for pulmonary function testing using electrical impedance pneumography intended for the diagnosis of chronic obstructive pulmonary disease patients.

Spirometry is regarded as the only effective method for detecting pulmonary function test (PFT) indices. In this study, a novel impedance pulmonary function measurement system (IPFS) is developed for directly assessing PFT indices. IPFS can obtain high resolution values and remove motion artifacts through real-time base impedance feedback.

Personalized healthcare comment service for hypertension patients using mobile device.

Hypotension and hypertension are chronic diseases, which can be effectively prevented and controlled by constantly monitoring. In this study, personalized healthcare comment service for hypertension patients is proposed and implemented. We have developed algorithms of health state code generation and doctor's comments for patients on case-by-case basis.

The lavatory-typed health monitoring system with linear system identification scheme for home healthcare.

The system proposed in this paper has been designed to acquire and transmit vital signals from lavatory-attached acquisition device in ubiquitous healthcare environment. We focused on the system to be unconstraint and non-invasive by introducing automatic measurement procedures. ECG, SpO2, NIBP, impedance and weight were measured and recorded.

A novel approach to classify significant ECG data based on heart instantaneous frequency and ECG-derived respiration using conductive textiles.

Our study focuses on classifying as significant Electrocardiogram (ECG) data from home healthcare system. Generally, spectral analysis of RR Interval (RRI) time series is used to determine periodic component of Heart Rate Variability (HRV). It is well known, moreover, that Low Frequency (LF) component is associated with blood pressure regulation, and High Frequency (HF) component is referred to respiration as Respiration Sinus Arrhythmia (RSA) in the HRV power spectra.

A new method to estimate arterial blood pressure using photoplethysmographic signal.

Preceding studies have shown photoplethysmographic (PPG) signal resembles blood pressure (BP) wave and varies. Some investigators also have studied this relationship to explain complex hemodynamic characterization. The purpose of this study is to make a trial of finding arterial BP (ABP) using PPG signal.

Design of a portable urine glucose monitoring system for health care.

This paper describes the design of a monitoring system that can be used to measure urine glucose during daily life. It consists of a bio-chemical sensor, hardware with PIC microcontroller and control circuits, and signal analyzing part. To evaluate the performance, we compared the analyzed glucose levels of the developed system to a standard instrument, YSI glucose analyzer, based on regression analysis using standard glucose solutions mixed with urine.