Nadi Parikshan Yantra and analysis of radial pulse

Abstract

Diagnosis according to Ayurveda is to find the root cause of a disease. Out of the eight different kinds of

A comprehensive review on technological advancements for sensor-based Nadi Pariksha: An ancient Indian science for human health diagnosis

“…This setup requires 3 sensors probe to be placed on correct VPK positions on wrist. Placing the probes on right position and pushing with correct contact pressure, get this setup connected with analysis is required [ 3 , 43 , 44 ]. The trained data collector or the physician must first determine the correct positions on the wrist and then once the optimal positions are determined, these sensors must be attached to the wrist.…”

Diagnosis of Disease Using Wrist Pulse Signal for classification of pre-meal and post-meal samples

“…The recorded pulse signal is random in nature hence autocorrelation of the signal is taken before taking FFT for extracting spectral features. Autocorrelation of signal is founded by using equation (3). After fmding the autocorrelation of the signal FFT of signal is taken Fig.…”

“…The diagnosis is done manually hence it depends upon the concentration and the state of mind of the physician at the time of diagnosis. The previous work done regarding this topic consists of the method proposed by Kalange AE et al [3] who used pulse signal to differentiate the pulse between vata, pitta and kapha. Three identical data acquisition channels were used to acquire pressure data at three pulse points.…”

Investigation on pulse reading using flexible pressure sensor

“…These observations reveal about the degree of imbalance of each Dosha. There are eight different ways to diagnose diseases namely, Nadi (Pulse diagnosis), Jihwa (examination of tongue), Malam (examination of stool), Mootram (examination of urine), Sabdam (examination of voice), Sparsanam (examination of body temperature), Drik (examination of eye ball) and Akriti (examination of the 1 Ayurveda is a ancient medicine system originated in India 2 Flow of blood in a rhythmic way 3 A Sanskrit word, which laterally mean contamination 4 sanskrith is one of the world's most ancient language used in Hinduism , Buddhism and Jainism 5 The word derived from Ayurveda, reflecting the biological elements of space and air of body 6 The word derived from Ayurveda, reflecting the biological contents of fire and water of body 7 The word derived from ayurveda, reflecting the biological contents of water and earth of body physique) [1]. Among these eight different ways of diagnosis, Nadi plays the important role which gives precise information about the Dosha in a body.…”

“…Nadi aridhala [4] and Nio Kanipaan [5] are also pulse based automatic diagnosis system, which uses external pressure actuators on the radial artery and pressure sensors to read the palpation. A PC based radial artery pulse examination system was developed as Nadi pariksha yantra [6] for the purpose of analysis. Three sets of piezo electric pulse transducers are used to measure the wrist pulse.…”