insulin-patch-pump
(2)
John Sjölund
John Sjölund is the CEO and co-founder of Luna Diabetes, a San Diego medical-device company building a small overnight patch pump that automates insulin dosing for the tens of millions of people who use pens rather than pumps. A Swedish-American inventor named on 30-plus patents, he previously founded Timesulin with his brother Andreas (a co-creator of Skype), sold it to Bigfoot Biomedical in 2017, then built the Bigfoot Unity connected dosing system that Abbott acquired in 2023. In August 2025 Luna raised a $23.6M Series A led by Vensana Capital.
Thomas Arnold
Thomas (Tom) Arnold is the Chief Executive Officer of ViCentra, the Dutch maker of Kaleido, billed as one of the smallest, lightest and most precise insulin patch pumps in its class. Appointed in February 2025 after nearly 25 years across Medtronic, PROCEPT BioRobotics, Boston Scientific and Sorin Group, he is steering ViCentra's smartphone-controlled automated insulin delivery system into European markets and toward a US entry, backed by financing that has grown from $85M to $98M.