MRMM device

Medical remote measurement and monitoring device


This device is intended for the monitoring and plotting of bodily changes over time at regular intervals for the entire duration that it is worn. There are many applications for such a system. Examples of applications could be to monitor medical conditions which involve swelling of limbs, or gastro problems which cause abdominal swelling. Medical staff are required to constantly monitor swelling after some surgeries, or in elderly patients where fluid accumulation can restrict blood flow. This device could monitor limb diameter and inform when a swelling threshold is breached.

Other applications would be fitness, especially in the bodybuilding community to actively measure and record muscle growth and weight loss over time. During exercise, muscles also become swollen, so it is useful to measure the before and after workout effects to explore differences and obtain averages. In addition, the difference between a flexed and relaxed muscle is also a useful measurement to have.

Concept image of medical straps. Not representative of current prototype

The records are measured using a dedicated app, which over time provides a trend showing the changes that are undergone by the human body.

This device consists of several elasticated bands at various points of the body. Tension in each band is measured using an in-line strain gauge or load-cell style sensor. The principles follow Hooke’s law of F=KX, regarding spring tension, and using this to accurately measure a distance with a combination of the sensor’s resistance value, and a formula contained within the app. Initial calibration would be required, but after this, results are accurate.

The app can have many different functions, and intervals. For medical purposes, measurements could be updated every few minutes or hours, depending on requirement.

For gym purposes requiring live updates of muscle flexion, updates could be given several times per second.

The app connects via Bluetooth to a small computer connected to the suit. The computer receives the sensor values, which would be converted by the app and stored on the device for future access.