Plexaa
How we are bringing hardware and software together to improve recovery post surgery
iOS appVisual identity & brandElectronics

Preconditioning the skin pre-operatively has been shown to improve the blood supply to the skin. This has been shown to prevent wound healing complications following surgery in clinical trials. Introducing BLOOM43, a smart wearable that preconditions the skin and prepares our bodies to heal, preventing surgical complications.


Doctor using Plexaa app

Becoming the full product team

We supported Plexaa right at the beginning of their journey. Together we created a wearable that runs preconditioning protocols for patients automatically. The device delivers ultra precise and safe preconditioning to the skin so that the patient can run protocols from the comfort of home, the day before surgery.

Plexa diagram showing each part of the hardware
Plexaa using using the app to check the temperature of the hardware

Combining hardware and software expertise

The connected app guides patients through the preparation process and device use. A confident patient experience is promoted through clear communication of what to expect and live, real-time reporting of what is happening.

Comfort, simplicity, flexibility and the emotive needs of the user were of primary focus throughout the design and build process. We believe user-centric design is the future of health and wellbeing delivery.

Plexaa circuit boards
Plexaa circuit boards with heat vision

We created an MVP, that went on to enable Plexaa to raise over £2M 

Our skills in prioritizing features, creating compelling prototypes and software expertise enabled Plexaa to have a very successful pre-seed raise.

plexaa logo
Plexaa usage guide

Visual Identity

The colour palette draws inspiration from heat maps, using gradients of warm and cool tones to reflect the device’s precision and effectiveness. The gradient symbolises warmth, care, and the balance of innovation and healing, reinforcing the wearable’s human-centred, data-driven design.

Plexaa colour pallette
Plexaa instagram posts

We’d love to discuss your idea or challenge. Please get in touch with Charlotte, our MD, to arrange a call.

Mettle Studio

T3 Somerset House
London
WC2R 1LA


To discuss new projects

Charlotte Heard contact photo
Managing Director

Charlotte Heard

charlotte@mettle-studio.com

For general enquires

Katy Jones contact photo

If you’re interested in working at Mettle, we’d love to hear from you, please email:

hello@mettle-studio.com

Press and media enquiries

press@mettle-studio.com


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