Archive for the ‘medical’ Category

When assessing someone’s health, medical personnel measure vital signs like heart rate, blood pressure, and temperature. Though you may not have heard of it before, respiratory rate (RR) is possibly the most crucial, because it’s one of the key predictors of injury severity.


However, accurate measurement is essential. The two main options for RR measurement are manual observation, which is prone to error, and capnography, which is invasive. Researchers at the Institute of Space Science in Malaysia set out to build a system that was accurate, fast, and completely non-invasive.




They built a contactless RR measurement system using an optical displacement sensor and LabVIEW. Basically, they shine a laser at a subject’s chest. The light reflects back to a sensor, which measures how the light moves as the chest moves during breathing. They used LabVIEW to visualize the signals, calculate RR in real time, and store the data for later analysis.  



>> Read the full case study here.

NI LabVIEW is a diverse graphical system design tool, and people who use it are doing some awesome things. LabVIEW is used in almost every industry, and when it comes to the medical industry, nothing compares. Researchers using LabVIEW are making huge progress in their industries, and the latest and greatest from the medical industry is a cost-effective liver dialysis prototype for clinical trials.







"The combination of LabVIEW and CompactRIO hardware significantly contributed to the deployment success of the prototype of our innovative liver dialysis therapy. Using NI technologies helped us deliver the first system within just seven months.”  Holger Chab, Hepa Wash GmbH




Researchers at Hepa Wash wanted to create a prototype that met performance and specification requirements set forth by the company, and achieved medical device safety under guidelines set forth by the International Electrotechnical Commission. Researchers used the LabVIEW FPGA and LabVIEW Real-Time modules with NI CompactRIO hardware to control the liver dialysis therapy prototype, as well as NI Requirements Gateway software to automatically create traceability documentation between requirements, tests, and design. By using all of these tools Hepa Wash achieved authorization for clinical studies within seven months.




>> See how using LabVIEW makes emergency room visits shorter.

In the United States diabetes is on the rise, with 25.8 million Americans known to be diagnosed in 2011. Since there is such a large diabetic population, many medical device companies are developing innovative and more efficient ways to help manage diabetes, especially for our “on-the-go” fast paced society. That’s where NI LabVIEW comes in.


Advanced Instruments Technologies Inc.—a National Instruments Alliance Partner— and Test Systems Pro Inc. used LabVIEW software, the NI Spectral Measurements Toolkit, NI TestStand, and NI PXI RF hardware during RF and production tests of a subcomponent for an FDA Class II medical glucose meter and insulin delivery system. This system uses RF technology to wirelessly communicate the blood glucose readings of the diabetic to an insulin delivery actuator that pumps insulin accordingly. LabVIEW was used to create fast, repeatable tests and streaming RF record and playback, which made integration quick and easy.


With this technology, we are one step closer to finding a cure for diabetes. The ability for a glucose meter to wirelessly communicate to an insulin delivery device opens the door for diabetics to have better control and fewer complications.




>> Check out the full case study to get more technical details for this application.

NI India Graphical System Design Achievement Awards Humanitarian Award Winner


Every day we rely on our eyes to observe and analyze objects around us, and guide us to a pathway that will prevent collision. Sometimes our eyes falter and we need assistance in figuring out where to go, so researchers at IIT Kharagpur created a vision-based electronic navigation system that can help.


More commonly known as an electronic travel aid (ETA), the system helps the visually impaired navigate the environment easily and more efficiently. Using an NI 1762 Smart Camera and NI LabVIEW software to identify and classify living, nonliving, moving, and other material objects within a 5 m range, the ETA calculates distance from object to wearer.  The system prepares alternate navigation paths around the objects and communicates the path to the user through speech messages. These messages can be programmed in different languages, which is a capability that many vision-based electronic navigation systems lack.


The entire system is based on LabVIEW software and the NI 1762 Smart Camera using the NI Vision Builder for Automated Inspection. This lets the system be compact and lightweight while highly effective. The system successfully detects human presence, chairs, tables, beds, television sets, refrigerators, doors, cupboards, and telephones. When the human face is not in the camera’s field of view, the system can still understand a human’s presence. Now you really don’t have to watch where you’re going anymore!



>> See how they did it.

Most of the time when you go to the hospital it’s a game of “hurry up and wait.” You rush to get the medical attention you need, and then wait for what seems like forever until you finally see a doctor.  Why is that?  Well, sometimes it’s because doctors have to transport patients from one room to another to run computed tomography (CT) scans and X-rays to make sure the diagnosis is correct and that previous surgeries were successful.


Researchers at Korea Institute of Industrial Technology have figured out a way to help doctors save time and complete diagnostics and surgeries more efficiently.  Their solution is a mobile X-ray imaging system that enables surgeons to operate more precisely and check a patient’s status instantly. 





The research team used NI LabVIEW software and NI hardware to develop the mobile X-ray imaging system because of the expandability of the NI CompactRIO platform. Because this complicated system requires many different sensors, hardware, and controllers, the CompactRIO platform’s versatility helped to build the system by easily adding the appropriate modules.


With LabVIEW, the researchers created the mobile X-ray system in three months and provided the reliability, expandability, and ease of operation they were aiming for.  LabVIEW also helped the researchers create a user-friendly interface and the core technology of the system, saving them development time.

>> Check out the full case study.


Some of the most common human activities are actually rather complex. Take walking, for example. It is a “repetitive process that requires the coordination of the lower limbs to move forward and maintain body balance with one foot in contact with the ground at all times.”

Darwin Gouwanda and Arosha Senananayake are two engineers from Monash University in Malaysia who developed an application that analyzes stride, stance phase, and swing phase – things that occur between the heel-strike to another heel-strike of the same foot (otherwise known as a gait cycle). Acute injury to one of the limbs can disrupt this process and cause abnormal gait. Significant differences between normal and abnormal gait can be found in the duration of a stride, stance phase, and swing phase. To quantify these parameters and study a person's gait, they developed a wireless gyroscope-based gait monitoring system to help them diagnose and track the rehabilitation progress of patients.

System Overview.jpg

The gait monitoring system measures the angular rates of the lower limbs, and identifies and quantifies gait cycles. They used LabVIEW to develop a user-friendly GUI and collect simultaneous real-time data streaming from two wireless gyroscopes, which is in turn sent to a workstation. Using the LabVIEW Advanced Signal Processing Toolkit shortened the development time and reduced the tedious programming work because it offers comprehensive signal processing tools and algorithms.

Just another example of how engineers use NI tools to improve everyday life.


>> Get more technical details for this application.