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Medical App for Real-time EKG Sensor Data Visualization

R-Style Lab developed an iOS data visualization app for an American digital health company. The application works in sync with a custom heart monitor, which enhances diagnosis and therapy of heart disease.

R-Style Lab developed an iOS data visualization app for an American digital health company. The application works in sync with a custom heart monitor, which enhances diagnosis and therapy of heart disease.
Technologies & tools
OpenGL, CoreData, Restkit, iOS SDK (Objective-C), Bluetooth
Project team
2 iOS developers, 1 PM, 1 QA

Solution

The custom heart monitor was enhanced with EKG sensors, which measured the electrical signals of a human body, providing a detailed picture of a patient’s condition. The client wanted to create an app to easily get access to incoming sensor data.

R-Style Lab created a front-end part of the solution and paired the app with the heart monitor via Bluetooth. The main challenge was to find a way to process sensor readings and visualize the data as medical heartbeat graphs at the speed of 300 dots per second.

The most obvious implementation option for this task from the get-go was the Core Plot library. However, the amount of incoming data was that large that it would have resulted in the lag in data processing and rendering, and the app wouldn’t have been able to comply with the 2-second speed requirements. Since fast real-time data visualization was critical for the healthcare device, R-Style team came with the idea of using OpenGL instead.

In order to enable real-time data visualization, our team had to segment Objective-C data into separate data units (raw C), transfer some of the workload to GPU and render C-data using OpenGL line primitives. Another requirement was to render some graphs with dotted lines, so we implemented OpenGL Fragment Shaders, which took each fragment (a rasterized pixel) as input and produced a single fragment as output. Thanks to OpenGL, the app was able to produce high-quality (300-500 dpi per second) solid and dotted line graphs with a delay of only 1/60 second.

The application can be used by both cardiologists and patients with heart disease. It has been approved by the US Food and Drug Administration.

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Testimonials

Hunter Jensen, CEO
Barefoot Solutions, Inc.
"Having worked with a lot of USA and non US-based development teams, R-Style Lab software development company is hands down the best I've seen. They have a high level of professionalism, excellent communication skills, thorough quality assurance practices, and superb technical expertise. I have been very satisfied with the quality of the software products that they have delivered, and everything has been delivered on time, on budget, and to spec."
Bolatbek Ospanov, Founder, CBDO
Smart Satu
"The success of any startup depends on its solid team and their commitment. We’ve found the perfect level of commitment with R-Style Lab. Besides stellar technical expertise, they have this striking passion for technology which enables them to think outside the box. R-Style Lab has developed a comprehensive business platform for us to facilitate cooperation between suppliers and their clients. This project has won startups competition in Kazakhstan which was organized by a Swiss company Seedstars World and will compete for a 1 mln dollar prize in the World Competition. The smartsatu.kz system is already popular not only in Kazakhstan, but in Kirgizstan and Bulgaria as well."  
Marc Zirka, CEO
Telcovision Group
"Working with R-Style is a pure example of software development outsourcing. It was a great pleasure working with a competent and flexible team, where the focus is on the quality and the timeliness of the deliverables. R-Style developed for us the backend for FROGO our new Dating Mobile Application where the outcome was more than satisfactory. Moreover, R-Style team and leadership were providing us at all times their support and were available to answer any questions we had. Working with them gave us a great level of comfort and trust"  
Sergey Kiruschin, Head of IT department
Aeroflot
“Work of R-Style Lab's specialists is a classic example of successful IT-outsourcing. We’ve been fully satisfied with the professional level of the work done.”  
Anton Karzhavin, Project Manager
Rive Gauche, perfume and cosmetics chain
“R-Style Lab solution allowed us to improve the quality of communication in the company. After the project completion, we have managed to reduce the costs for long-distance communication by 10%. I’d like to thank R-Style Lab team for the professional and flexible approach to the project implementation”  
Mark Valentini, CIO of “Red Square” Ltd.
Eurovision, Song Contest 2009 in Moscow
“The project on the deployment of “Eurovision-2009” IT-infrastructure has been undoubtedly large-scale and labour-intensive. Its realization demanded for engaging a huge part of the company’s resources in a very limited time. Moreover, the project required for maximum focus as well as consolidation of all the company’s potentials. R-Style Lab specialists have fulfilled the task assigned to the full extent of their power. All the works were completed on a very high professional level.”  
Alexander Arikainen, Administrative Director
Dentsu-Smart
“Reorganization of the company’s IT-infrastructure has allowed for improving customer service, optimizing employees’ work and structuring data processing. In the result of the project implementation, we’ve got a single point of managing access rights, servers, users, printing, applications, e-mails and other resources at all the Dentsu-Smart subsidiaries. Besides, R-Style Lab specialists have developed a fault-tolerant and easy-scalable system.”  
Andrey Golovchanov, Project Manager at Uhrenholt
Uhrenholt
“The implemented project allowed for improving the security level of the information system, made it more reliable and failsafe, increased its flexibility and scalability as well as reduced costs for administration. According to our estimates, the R-Style Lab's delivered project let us lower the operational costs by almost 2 times.”  

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