Power-assisted human anatomy — software engineer optimized design of medical equipment

Use the research use MulTIsum software to an artificial limb amputees of human movement

Challenge

Create a portable and wearable devices for gait analysis, and research on the use of artificial limbs amputees of human movement.

Solution

Use the NI Multisim and Ultiboard software to design intelligent prosthetic leg bones component system (iPecs).

Figure 1. Intelligent prosthetic leg bones component system is a portable device, the device provides a gait analysis experiment of critical data acquisition functions and amputees can be equipped with the device to perform the normal daily activities.

From University Park industry prostheses industry a leader provides use of design principles to mimic the human foot and depending on the anatomical terms is correct prostheses, and combines high-tech composite materials to the products, to provide the functionality and durability of artificial limbs.

Prosthetics industry leader, College Park industries provides automated prostheses feet; the prosthetic design using a biological simulation principles to human foot and through the integration of high-tech synthetic material enhanced functionality, and persistent. At the same time meet the following two design products to meet the functional requirements of amputees and requirements, manufacturing and final device practitioners — demand for prostheses physician profit is a challenge.

We want to provide a portable device, the device provides gait analysis experiment of critical data acquisition functions and amputees can be equipped with the device to perform the normal daily activities or the device is suitable for their prosthetic limbs.

In the device's weight and size, the device must be inconspicuous, to eliminate test results of any bias effects.

Intelligent prosthetic leg bones component system is a testing tool, by providing prostheses component selection and adjustment of personalized and objective information to help researchers and medical staff to optimize patient care.

Any artificial limbs physicians can visualization and direct measurement and interpretation of artificial limbs and adjusted to the patient.

We use Multisim and Ultiboard software to design intelligent prosthetic leg bones symbol system circuit experiments, these two kits of cross-cutting offers great convenience.

The development team through the multiple uses of these dynamic tools to design, simulation and experimental Visual circuit line, make the device dimensions significantly reduce, increase the efficiency of the development package, which uses the dimension.

In the past, we need the whole sector to design intelligent prosthetic leg bones component system.

Multisim and Ultiboard software allows us to obtain such an original small enterprises do not have access to technology.

MaryAnn Labant and Michael Leydet, University Park industry

Use the LabVIEW software to create and verify a artificial heart of long-term test system

Challenge

Create an artificial heart simulation process test system (SFTS) for long-term testing procedures, the application of the medical equipment for the verification and validation for VIs.

Solution

Use the NI USB-based company data acquisition (DAQ) and signal conditioning devices for parallel loops schema, and use the NI LabVIEW unit test framework Toolkit.

Figure 2. Artificial heart pulse fluid flow simulation

When testing the artificial heart, Data Science Automation device added to the workflow system, to simulate the arterial flow testing.

Each time, we want to make the heart tests for several months and years to verify that the artificial heart can patients use the months and years. We also run a loop, 18 requires data acquisition, recording, analysis and periodic logging. Because we need to focus on data collection, and requires a dedicated mobile probe test system, we use a multi-channel system will sensor and from serial port communication signal routing to a single data set. System each kind of the "mode", be alert status, the user whether to overwrite or interrupt, three single-day circulation record of the test require reliable 10 heart beat.

Even if we one day only to collect the data three times, the system will also need to constantly monitor each loop of pressure, flow and temperature.

If the value exceeds the user-defined limit, the alert status will be activated, circle and multiplexUsed to override the current automatic process. We collect and write additional diagnostic data to the alert log and send information to the user, the information must accept any other user input before it is cleared.

In order to meet the development of medical device software specification, each part of the program must be validated tests.

When we complete each VI, we must use a reasonable report for testing and validation, generates a test record. Although we can manually perform validation tests, LabVIEW unit test framework tools save you time and effort, especially for recursive test, because we can use the tool effectively to produce tests and documentation. In addition, integration, testing and validation during changes to the software even easier. LabVIEW unit test framework tool flexibility and ease of use for the projects section provides faster and more reliable, this is no doubt in the project lifecycle, potentially saving the artificial time and hundreds of millions.