They told you there was no way that explosions could heal people, but they were fools… Fools who didn't understand your brilliance! You create a minor explosion from your innovation, altering the combustion to cauterize wounds using vaporized medicinal herbs. You or a living creature adjacent to you regains 1d10 Hit Points. In addition, the creature you heal can attempt an immediate flat check to recover from a single source of persistent bleed damage, with the DC reduction from appropriate assistance.
At 3rd level, and every 2 levels thereafter, increase the healing by 1d10.
You've increased your skill in crafting, and you can put your devices into a more powerful state of overdrive. You become an expert in Crafting, and on a successful use of Overdrive, you increase the additional damage by 1.
Reconfigure:
You've become an expert in all crafts and are always adjusting your inventions. You can attempt to change the modifications on your innovation by spending 1 day of downtime tinkering with it and attempting a Crafting check, with a high DC for your level. On a success, you can change one modification you've chosen for your innovation to a different modification of the same kind (initial, breakthrough, or revolutionary).
If you have any modification feats, on a successful check you can choose to instead retrain a modification feat to a different modification feat. The new feat has to meet the standard restrictions for retraining.