Abstract: Medical patch device mountable on skin for drug delivery or analyte sensing, including a mounting base (6) comprising a support layer (12) and an adhesive layer (14) on a mounting side (36) of the support layer, and a functional unit (4) comprising a power supply, and an electronic circuit. The adhesive layer comprises a light switchable adhesive and the support layer is formed as a light guide configured to diffuse light from one or more electronically activated light sources connected to the electronic circuit of the functional unit.

Abstract: A cartridge (2) with a fill level detection system (10, 10?, 10?), the cartridge comprising a substantially rigid containing wall (4) having a tubular wall portion (12) surrounding a chamber (18) for receiving liquid therein, a plunger or piston (8) mounted inside the chamber and configured to seal one side of the chamber, the plunger or piston being displaceable in the chamber towards an outlet end (14) of the cartridge, characterized in that the fill level detection system comprises a plurality of discrete fixed electrodes (24, 24?) positioned along the tubular wall portion in a juxtaposed manner in a direction of displacement D of the plunger or piston (8), and a mobile electrode member (28) fixed to the plunger or piston and displaceable therewith.

Abstract: A cartridge (2) with a fill level detection system (10, 10?, 10?), the cartridge comprising a substantially rigid containing wall (4) having a tubular wall portion (12) surrounding a chamber (18) for receiving liquid therein, a plunger or piston (8) mounted inside the chamber and configured to seal one side of the chamber, the plunger or piston being displaceable in the chamber towards an outlet end (14) of the cartridge, characterised in that the fill level detection system comprises a plurality of discrete fixed electrodes (24, 24?) positioned along the tubular wall portion in a juxtaposed manner in a direction of displacement D of the plunger or piston (8), and a mobile electrode member (28) fixed to the plunger or piston and displaceable therewith.

Abstract: Breaker switch arranged on a wall (4) of an electric device (9) including a receptacle (20), containing a thermofusible composition (25) having a softening point &thgr;1, and a flexible metal strip (10) interposed between two studs (2a, 2b) fixed by one end to the wall (4) extending above the receptacle (20) and being provided in its free portion with means (14, 18-19) for the anchoring thereof in said thermofusible composition to bend the strip (10) against the two studs (2a, 2b). The receptacle (20) is advantageously extended by a heat probe (27) going to the core of the device (9). When the temperature of the device (9) exceeds &thgr;1 the anchoring means (14) are released from the thermofusible composition by the elastic return force of the strip (10) thereby opening the contact between the studs (2a, 2b). Application to a battery, in particular of the lithium-ion type.