Senseonics: Improving connectivity between a medical mobile app and an implantable sensor

Senseonics partnered with Sagentia to rapidly resolve iOS Bluetooth Low Energy connectivity issues for Senseonics’ medical iOS app which interfaces to a wearable Senseonics transmitter & implanted glucose sensor.


Senseonics is developing a novel implantable continuous glucose monitoring system. The system consists of an implanted micro-sensor based on a fluorescent glucose-indicating polymer, and a receiver worn on the skin over the sensor site, which provides power to the sensor, receives the raw signal and processes the data using embedded software. The final glucose result is then transmitted via Bluetooth Low Energy (BLE) to a smartphone (iOS) app, where the user or the physician can review glucose reading trends in the context of logged events, such as insulin boluses and meal-times.


Senseonics worked with various App development teams prior to partnering with Sagentia. The iOS app suffered from low bandwidth and poor user interaction for BLE connectivity. Sagentia was asked to solve the bandwidth and connectivity issues and provide possible solutions for enhanced user experience.


Working in partnership with Senseonics, we initially focused on the Bluetooth LE communications issues and conducted a system-level review of the transmitter hardware, transmitter firmware, and app software. Through this analysis, we were able to identify and resolve the origin of connection drop-outs and low data rates. We also recommended and implemented several UI improvements encompassing iOS design rules and medical device usability standards. As the app was intended to be regulated as a medical device, we contributed updates to the existing documentation required to ensure the FDA-regulated app was compliant with Senseonics Quality and with the relevant standards.


The final system was delivered within three months in time for a clinical trial of the first generation product. During this program of work, we resolved connectivity and bandwidth issues through fixes on the hardware side and the app itself. We established an extremely fast and reliable communication between the app and the embedded device, yielding a 10x bandwidth improvement.

‘Sagentia provided tremendous value in the implementation of the novel Bluetooth Low Energy Technology utilized in Senseonics’ Medical Mobile App. Sagentia offered to bring in the subject matter expert to meet the company’s aggressive timeline & partnered effectively with a start-up medical device company like ours.'

Tim Goodnow, CEO Senseonics



What’s special about us?

Why do we do it?

Where we add value

Did you know?

What’s special about us?

  1. We put you first. If we work on a patentable piece of technology on behalf of a client, our clients always get the IP
  2. We deliver. We combine strategic thinking and market analysis skills with science and technology consultancy and product development to create plans, deliverables, and results
  3. We challenge. Think of a question you’d ask us about a given direction, market or trend. Is it the right question? Is what you’re asking for really the thing that will achieve your objective?
  4. We’re fast. It’s possible to take a three year plan and execute in 18 months, and to take a 12 month plan and execute in 3
  5. We’re fun to work with. We make the effort to really understand your business and your challenges so we can craft solutions that are specific to your needs

Why do we do it?

  1. Because it matters. We seek to help our clients make a difference to real lives
  2. To raise the bar. By sharing our breadth of expertise and experience across the markets we know we can facilitate and accelerate successful innovative growth and business strategies
  3. For our clients. When we work with our clients they see us as their partners. Their success is vital to us and we are genuinely excited and delighted when they select us to be part of their journey to research and develop
  4. We love it. We’re fascinated by science and technology, the world in which we live and the macro trends and issues which are changing our lives. We want to help shape transformation

Where we add value

  1. If something seems an impossible task, we can deconstruct it with you and come up with a plan
  2. We will take on moonshots
  3. We believe we have one of the widest skills bases anywhere and can take on some of the more unusual or challenging projects. If it’s a weird one, give us a shout
  4. We’ll always tell you if we can’t help, or if we think there’s someone better for the job
  5. If you are responsible for looking at macro trends in your businesses that might pose a threat or create an opportunity and you need to do more digging – we can dig for you. And more than that we’ll make sense of what we find and give you next steps
  6. We enjoy our work. And we think you’d enjoy working with us too

Did you know?

  1. Our top 2 most common project requests are in sustainability and digital transformation
  2. We speak more than 20 languages
  3. We have a dedicated IoT infrastructure, Nuvola, with 4.8m live devices connected to it
  4. Our electron microscope is a Zeiss Evo Scanning Electron Microscope and is used every day
  5. We created hollow sugar, in 2011
  6. We have UKAS accredited food kitchens
  7. We are 13485 accredited and have been for 20 years
  8. We architected and coded cloud infrastructure for a major industrial client
Haven't found what you were looking for?

Our marketsarrow pointing rightarrow pointing right

Our consultants, scientists and engineers redefine what’s possible and help R&D groups across the medical, industrial, consumer and food and beverage sectors achieve commercial return from their opportunities.

Our projectsarrow pointing rightarrow pointing right

We have completed over 10,000 projects for start-ups and global market leaders alike, from understanding the market & technology landscape through to developing and delivering complex products.