How about healing on call for Starfinder?

Cardiostimulant

This small flat panel has a number of small needles on the other side. When placed over the heart, each panel has enough battery power to deliver a single charge to the heart or heart-like organ of a creature. Upon being reduced to zero hit points and no cardiovascular activity, the cardiostimulant will deliver its charge in a massive dose reviving the wearer and healing a number of hit points a shown below. Once used, the device falls off.

Type	Healing
Mk 1	1d6 Hit Points
Mk 2	3d6 Hit Points
Mk 3	6d6 Hit Points

 Cardiostimulant, Mk 1

Level 1; Price 50; Bulk L

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Cardiostimulant, Mk 2

Level 5; Price 425; Bulk L

 Cardiostimulant, Mk 3

Level 9; Price 1,950; Bulk L