If any science has to prove itself, it has to successfully satisfy the challenges and tests put forth by contemporary and established schools of sciences. The proven fact about Ayurveda is that it has given positive results even on incurable and chronic health problems. However, it is not considered as a science. To gain scientific recognition, we need to combine technology with traditional knowledge. There are many Vaidyas who have gained vast knowledge through experience. There is a need to extract and store this knowledge for future generations.
Other than the concepts from the texts, the learnings/diagnosis of a doctor are not conveyed to the next generation if not documented properly.Furthermore, due to lack of documentation and mathematical characterization, traditional knowledge is not considered as a science. There is no exact information about patients undergoing traditional treatment, success stories and so on. Documentation will help traditional knowledge receive the scientific recognition it deserves. It will also facilitate easier knowledge transfer between experienced and younger doctors.
The current results are based on the analysis of 25000 data points collected from 20 locations. Even though this number is statistically significant, we have yet not considered location, prahar and climate information etc. Also the report provides 15 parameters now, but we are working on collecting and validating more data to add new parameters to the report like sub-dosha, dhatu and guna.
Doctors have different ways of 'feeling' the pulse. Few doctors feel three locations with three fingertips or feel five locations every fingertip or even three-by-three locations per fingertip, and so on. Furthermore, due to concentration and experience levels, the pulse based methodology is very subjective. Nadi Tarangini’s technology will help find a standardized the 'feeling' information of the pulse based on the knowledge from multiple doctors.With the current set of sensors, the 'feeling' information is not completely captured. But with time, both the hardware and software will improve to capture the pulse in the best possible way.
We have gathered data at various the timings throughout the day. And we are using intelligent algorithms to find common patterns in all the data points. We claim that these patterns can be used at all timings, however a specific study has to be done to statistically prove the same.
Nadi is the first and the most important non-invasive tool of Ashtavidhpariksha process. There are many Vaidyas who can diagnose subjects just by feeling the pulse. It contains very deep knowledge about the entire body. It’s an art / skill to learn the system, to enter into the system. However, this feeling information of nadi requires deep concentration and a learning curve of several nadis of different types. Nadi Tarangini helps accelerate the learning of NadiPariksha by means of graphical representation.
In a typical clinic setup, Vaidyas do not use Ashtavidhpariksha, but three fold system of Drushyam, Prashnam and Sparsham. Nadi Tarangini helps the Vaidyas in this three-fold system. The pulse report provides many basic and advanced Ayurvedic parameters, which have their implications on the subject’s health. Using the pulse report, the Vaidyas can show the graphs to the patients indicating low or high values of the dosha. They can ask questions which might have been missed out, but are now more obvious For E.g. based on Bala and Vikruti information - making the report an effective ‘conversation tool’ with patients.
From the patient point of view, the report comparison feature (current and previous values) provides evidence of the treatment’s effectiveness. This helps today’s techno-savvy patients understand the treatment process, who otherwise search for answers on Google – thereby improving patient confidence and retention.
At this moment, we just consider the Nadi and questionnaire based information in Nadi Tarangini. We are working on other sensing methodologies for the computerization of Ashtavidhapariksha.
Many Ayurvedic doctors (especially younger ones) are not very confident about ‘feeling’ the pulse or distinguishing patterns in the pulse. Nadi Tarangini’s graphs,will make it easier for them to observe the variations with ease and will accelerate self-learning. Today’s patients are very inquisitive. They usually like to understand the cause behind the disorder, how it has affected their health and what all can be done. With traditional method of sparshana, darshana and prashna; it is not very easy to answer all the questions of the patients. With the visualization of pulse signals and numbers on the report, the ‘conversation’ between the doctor and the patients will be easier.
Note that the pulse based technology (hardware as well as software) is in its nascent stage. It will be useful for young doctors for visualization based self-learning, while it will be useful for the experienced ones to share their knowledge. It will help everyone in conversingbetter with patients.
This technology is a computer-aided system similar to an ECG machine. Any gadget or technology can never replace a doctor. It only helps the diagnosis/treatment process thereby helping the doctor.
In the data collection step, Nadi Tarangini was installed at 20 clinics and hospitals. In the prototyping phase, 5 doctors used it and currently more than 100 doctors are using Nadi Tarangini. We have received very encouraging feedback on the accuracy of the report as well as patient satisfaction. You can read/watch their detailed testimonials in the ‘What Doctors Say’ section on the home page or visit our You Tube channel https://www.youtube.com/channel/UCybl9xiZD9vL6oJO5cpvARg
The work started with renowned Nadi Vaidya Ashok Bhat from Pune in 2005.
More than 20 Doctors were involved in providing domain expertise and in the data collection process including Dr. Tejaswini Bhale (Pune), Dr. Dharmendra Patel (Gandhinagar Ayurvedic Hospital), Dr.Mahendra Pate (Pune), Dr. Swati Tikekar (NCL Pune), Dr.Dattatraya Girge (Shri Ayurved Hospital), Dr. H. R. Nagendra (S-vyasa, Bangalore), Dr. Pooja More (S-vyasa, Bangalore), Dr. Kiran Ambekar (Mumbai), Dr. Dinesh Panchbhai (Nasik), Dr. Nitin Pandav (Nasik), Dr.Vishwas Jategaonkar (Pune), etc. There were also inputs from many other Vaidyas who were not officially involved.In the next phase of development, many renowned doctors have agreed to help (we are in the process of signing an MOU with them).
We have referred to many ancient texts for understanding the basics of Nadi Parikshan and not just a single one. For e.g. Sharangadhara-Samhita, Bhavaprakash, Yogaratnakara, Kanada's Nadi-Vijnana, Ravana's Nadi Pariksha.Vaidyaraj Ashok Bhat from Pune has played a pivotal role in conceptualization of Nadi Tarangini. Currently we have our own panel of domain experts and advisors who provide inputs and mentor the team from time to time.
Atreya collected Nadi patterns of 25,000 patients from 20 different locations along with inputs from different Vaidyas. The data and inputs varied based on their involvement, language, input method, subjective output parameters and so on. Finally when we collated all the data, we applied fuzzy logic on the same to arrive at a certain level of ground truth with the help of a core group of Vaidyas.
We understand that the traditional Nadi Pariksha methodology is very subjective and many times different Vaidyas have different opinions about the same patient. The subjectiveness is due to the difference in the concentration and feeling/touch information of Vaidyas, their Guru parampara teaching methods and their own experiences.
In our prototyping studies, we collected data from 20 different locations – inputs from different Vaidyas. The data and inputs varied based on their involvement, language, input method, subjective output parameters and so on. Finally when we collated all the data, we applied fuzzy logic on the data (Fuzzy logic is a method developed to handle the concept of partial truth, where the truth value may range between completely true and completely false.) to arrive at certain level of ground truth with the help of core group of research Vaidyas.
From more than 25,000 data patterns that we have received from 20 locations, we have medical information about the subjects, nadi of the subjects and the inputs given by the doctors. We have validated the data through the computer science method. 85% accuracy refers to Nadi Tarangini’s ability to correctly identify each Nadi pattern/graph as Vata Pitta and Kapha.
Furthermore, the accuracy of the Nadi Tarangini system was tested in the prototyping stage before the launch by 5 practicing doctors in Mumbai and Pune, where 8 or 9 parameters out of 10 matched their manual nadi outputs. Please note that, as the Nadi Tarangini system is based on artificial intelligence, the accuracy improves as more and more data is gathered in the rules-defining server.
The first version of Nadi Tarangini was launched in December 2016, and we have over 100 doctors using it. We also have an internal team of doctors/domain experts who provide inputs in Nadi Tarangini’s development.
Our customers/doctors provide us with valuable feedback on the user-friendliness of the software and the report. Also, the medical and nadi data is gathered at the centralized server time to time. As the data size increases at the server, the data-driven artificial intelligence imporves :
The intelligence and pulse report becomes more optimized for the same set of rules.
As the local data size increases, the intelligence and pulse report becomes more localized. E.g. If more doctors from Indore start using Nadi Tarangini, the pulse report will start displaying trends of disorders and subjects from Indore.
The in-house research team of domain experts and scientists is constantly working on new Ayurvedic parameters, new data and have scheduled their additions in the pulse report. Therefore, the nadi Tarangini software and report is constantly evolving. Every timely upgrade is an improvement from the previous version, in terms of software, pulse report output parameters and their optimization.
Basis the above process, we have released our first upgrade in June 2017 – in which many new features have been added to the software and the report. The report is also much more comprehensive - 11 pages from the 4 page one earlier.
Absence of any physiological disorder is considered as a healthy person.
When a common man feels the nadi manually, he understands only the important beats in one / two / all three fingertips as below.
The figure indicates 10 consecutive beats at one fingertip, where every top surface / peak indicates what the person is feeling at every pulse beat. When the pulse beat is felt manually, the recorded time signal is at the peak, and when a gap is felt manually, the recorded time signal is at the bottom. The ups and downs are continuously recorded in Nadi Tarangini at 500 points per second.
If the feeling is not strong, it may look like
If the feeling is sharp, it may look like
With little more concentration, the feeling becomes not 1 peak, but 2 peaks on every pulse beat.
Here, in every pulse beat, there are two peaks and two gaps.
But when highest concentration is applied, the feeling information is continuous with many ups and downs.
The upward movement in the pulse signal indicates the feeling of nadi coming towards the fingertip
Downward movement in the recorded pulse signal indicates the feeling of nadi going away from the fingertip
Again, note down that this is a time signal only from one of the three doshas (recorded using one of the three pressure sensors). Important point to note is, the bottom line is not the zero line in the recorded pulse time signal. In simple terms
The expansion of the pulse artery can be seen as coming towards the fingertip and upward movement in the time signal
The contraction of the pulse artery can be seen as going away from the fingertip and downward movement in the time signal
So, the zero line in the above recorded pulse time signal goes in between as shown below:
The image below indicates the screenshot of the first image of the Nadi Tarangini report displaying all the three dosha time signals (of 10 seconds) in the mobile application.
The above image displays three pulse time signals of vata (blue color), pitta (red color) and kapha (green color). The pulse signal moves up and down the zero line in a different manner for every pulse beat. In the vata (blue) pattern, the upward movement/positive amplitude is upto approximately +800. Depending upon the strength of the pulse, this number may vary from +100 (very little feeling / sukshma / manda / no strength) to +1500 (very strong feeling). In general, we have observed that, average number for most people in healthy state is +600. Similarly, in this case the downward movement/negative amplitude in this example is approximately -500. This number may vary from -50 (very little feeling in gaps) to -800 (high feeling in gaps).
In the same image, the red and green pulse signals have lower amplitude numbers. That means they are not as strong as vata pulse in that proportion.
It is known that the pulse signal is the manifestation of the heart signal. There are 100s of papers which find correlations between HRV and stress or HRV and thoughts (and most papers discuss about effects of different yoga on them). It has also been established that HRV and PRV are significantly similar to each other in most cases (except in extreme conditions). So, we have used the algorithms from the published papers to provide the two parameters.
Even though the pulse waveforms are different from the heart(ECG) waveforms, the pulse beats follow the pattern of the heart beats. Therefore, we have assumed that PRV equals HRV, which is computed as the beat to be at variation in the time between consecutive pulse intervals.
Positive and negative thoughts or emotions are distinguished by changes in heart rhythm patterns, and rhythm, bala & tikshnata parameters of nadi.
In the data collection process, we have collected data from healthy and unhealthy subjects. A baseline is provided as an average pulse cycle of all the pulse cycles from the group of the same gender, age group (less than 25, 25 to 50, more than 50) and prahar (8am to 12pm, 12pm to 4pm, 4pm to 8pm). The most suitable average pulse cycle is provided in each outlier case.It is a completely generalized mark, and should only be used for the ‘first guess’.
It does not currently. But Phase II of research for other ayurvedic parameters (sub dosha and guna) and disease patterns of different disorders(including diabetes and hypertension) is underway. It will be released once the data collection and validation process is successfully completed.
Correct capture of the Nadi pattern is a function of the pressure applied and the positioning of the sensors. The Nadi Tarangini report is generated provided a rhythmic Nadi pattern is captured for at least one of the VPK locations.
To ascertain whether the Nadi is being captured correctly, we have two indications in the software. In case the Nadi is not rhythmic, a red overlay will appear. If the red overlay appears, the Vaidya needs to check if the pressure or positioning is correct and adjust the same. Alternatively, the Vaidya can check the Nadi manually to see whether that dosha is weak or not. We also show the current and previous pressure values at the VPK locations, so that Vaidyas can replicate it each time to capture the Nadi correctly.
In case you get a zero line, it could either be a Bluetooth connectivity issue or an issue with the sensors. To check for the same, try the device on the desktop version with the cable. If it works on the desktop version then a Bluetooth issue is confirmed. If it’s a sensor issue, then there will be a zero line even on the desktop version. One can also try to check for a sensor issue by reversing the position of the 3 sensors and seeing whether the patterns are appearing or not.
The correct pressure and positioning of the sensors is explained in detail in this video https://www.youtube.com/watch?v=zKNFSmA8BDk (Please refer to our YouTube channel for all videos). Key points are summarized below:
Your fingertips need to be slightly out while putting them in the doctor’s unit.
Thumb needs to be below the patient’s wrist for a proper grip from the bottom.
Doctor's unit needs to be perpendicular to the patient's wrist without any gap between the sensor and the patient’s wrist.
All 3 sensors to be in a straight line.
Center point of the air gap needs to be at the VPK Nadi locations.
It is said that Nadi patterns vary with even the minutest change in physiological or psychological state. So there can be many variables that affect it. For E.g. if the patient is sweating because he has come after a brisk walk vs. by car, the Nadi pattern will vary.
Our system needs a dry surface to capture the Nadi. So sweat on the patient’s wrist needs to be taken care of before Nadi capture. Standardizing the conditions for capture is up to the doctor. The doctor can wait for the patient to get comfortable before capturing the Nadi.
The Nadi Tarangini gadget is a pressure sensor based, low power system with Bluetooth technology similar to that of the mobile phone. It does not emit any waves in the environment.
Please refer to our videos on ‘How to take nadi correctly’ and ‘Pulse Pattern Interpretation’ in the Videos section for a detailed explanation.
You will need an android based phone/tablet or a Windows PC and an internet connection to use this system.
Yes, Nadi Tarangini can be used without a laptop or computer. However, an android based phone or tablet is compulsory since signal capture and analysis is possible only through that.
Download the mobile application from the Google Play Store and sign up. Please see our Demo video in the Videos section for details.
It is available on the Google Play Store.
It is an online software. There is no requirement of download for this. Simply visit our Nadi Tarangini website and login to your account.
Data is stored on the cloud server for two reasons:
Convenience of the doctors – enables access to their patient's Nadi reports from anywhere. Patients can also see their report online through their patient login.
The Nadi patterns data stored on cloud helps us do more analysis and come up with further upgrades to the report from time to time.
We need only basic medical information to generate the report - height, weight, chief complaints and prakruti. Apart from that, patients' personal details like name, email, phone etc. are of no relevance to us.In the app, we have not made any personal patient details mandatory. Those fields are present for the convenience of the doctor so that they can refer to all the patient data at one place. You can choose not to create the patient account also if you wish.
Doctors also tell us that they are willing to share their knowledge (IP), based on their own experience, for the betterment of Ayurveda. If any publication comes out of the joint research, the doctor/clinic/college name appears along with Atreya’s name.
We may use the patient's non-personal/medical data (E.g. Nadi patterns, blood pressure, medical reports etc.) and other information provided to us for research (behavioural and more advanced studies in our domain). The aggregate information in the research does not identify you/your patients personally. This data can be used for analysis or improvement of our services or for developing further upgrades to the report from time to time. We may also disclose aggregated user statistics in order to describe our services to current and prospective business partners.
The system needs a rhythmic Nadi pattern (PTVD) for at least one of the VPK locations for the report to be generated. In case the Nadi is not captured properly, the software will not generate a report and will ask for the Nadi to be captured again.
The correct Nadi pattern capture is a function of the pressure applied and the positioning of the sensors. Pressure applied needs to be at level 2 or 3 of Nadi. Please refer to the earlier answer in the Usage Section for details of how to position the sensors.
Nadi patterns will vary as per the time at which they are taken. The report does not standardize the same. It is left to the doctor’s discretion to interpret it. The report provides guidelines but is not a substitute for diagnosis.
The current report card is the second version of our intelligence and contains 15 Ayurvedic and wellness parameters. Further research is underway. The report card will get more comprehensive with more data and research.
The hardware is maintenance-free. Only the external surface of the patient’s unit might need periodic cleaning to remove dust and stains. Doctor's unit needs to be handled with care. One must not press, wring or twist the TPU material in the doctor’s unit to avoid damage.
This device is not water-resistant. Do not hit, shake or drop the device to avoid damage and injury. Do not place heavy objects or put pressure on the device, as it may damage the components or the device itself.
Currently there is no such facility.
No. Currently we do not sell outside India but surely intend to do so in future. Please register with us or like our Facebook page so that we can keep you posted on the same.
Currently there is no such offer running.
No. Currently we do not sell outside India but surely intend to do so in coming times. Please register with us or like our Facebook page so that we can keep you posted on same.