Innovate UK has backed the medical device firm to advance clinical trials and research.
"We are very excited about our current progress in research and development. Validation and further development is ongoing, and we are planning our clinical trials, in collaboration with scientists from both Universities in Sheffield and internationally, in the Netherlands. We are committed to use our technology to help people that suffer from issues related to sleep."
The first tranche saw participation from Henley Business Angels and existing investors.
"Lein is now at a very exciting stage. The ongoing projects with existing customers are now moving into production and provide Lein with a strong financial base. In parallel, the healthcare monitoring devices that we are developing have the potential to make a large improvement to the diagnosis and care of many chronic conditions and provide Lein with the route to a significant exit valuation."
The investment round was led by Angels in MedCity and Angel Academe.
"We are really excited to be starting the next phase of BeamLine and initiating our first in-clinic trials. Being part of Angels in Medcity and Angel Academe has offered us such diverse but relevant experience that has and will greatly accelerate our growth."
The funding round includes participation from the LBA EIS Roundtable Syndicate Fund 2016 to support market growth.
"We have made significant progress over the past year and, thanks to the support of Angel networks, are well-positioned to grow as the use of novel materials in medical devices increases."