Sensor assembly part and a base plate for a medical appliance and a device for connecting to a base plate or a sensor assembly part

Device for connecting to a base plate of a medical appliance, the base plate defining a base plate plane and an axial direction being perpendicular to the base plate plane, the device comprising:

• a device housing;
• electronic circuitry;
• an appliance interface configured for connecting the device to a base plate, the appliance interface comprises one or more terminals including a first terminal for forming electrical connection with a first terminal of the base plate, the appliance interface comprises a device coupling part comprising a distal facing edge,
• wherein the distal facing edge is configured for engagement with a proximal facing edge of the base plate when the base plate is connected to the device,
• and wherein an axial distance along the axial direction between the distal facing edge of the device coupling part and a proximal facing side of the device is a second axial distance, the proximal facing side of the device being configured to abut a contact surface of the base plate upon connecting the base plate to the device,
• the device coupling part being configured such that the second axial distance is more than a first axial distance between the proximal facing edge of the base plate and the contact surface of the base plate, such that upon connecting the base plate to the device the proximal facing side of the device contacts the contact surface of the base plate.

Medical system comprising a base plate and a device configured to connect to the base plate, the base plate defining a base plate plane, an axial direction being perpendicular to the base plate plane,

• the device comprising:
• a device housing;
• electronic circuitry;
• an appliance interface, the appliance interface comprises one or more terminals including a first terminal for forming electrical connection with a first terminal of the base plate, the appliance interface comprises a device coupling part comprising a distal facing edge,
• the base plate comprising:
• a top layer having a distal side and a proximal side;
• an electrode assembly comprising one or more electrodes including a first electrode, the first electrode comprising a first connection part, a distal side of the electrode assembly is facing the proximal side of the top layer;
• a monitor interface, the monitor interface comprising a coupling part comprising a proximal facing edge, the distal side of the electrode assembly facing the coupling part, and the monitor interface comprising one or more terminal elements including a first terminal element forming a first terminal of the base plate, a distal part of the first terminal element being secured to the coupling part and a proximal part of the first terminal element being in a position to contact the first connection part;
• and
• a first adhesive layer with a distal side facing the proximal side of the electrode assembly, and wherein the proximal part of each of the one or more terminal elements are located between the first adhesive layer and the electrode assembly, the first adhesive layer comprising one or more water soluble or water swellable hydrocolloids,
• wherein the proximal facing edge of the base plate is configured for engagement with the distal facing edge of the device when the base plate is connected to the device,
• and wherein an axial distance along the axial direction between the proximal facing edge of the coupling part and a contact surface on the distal side of the top layer is a first axial distance, the contact surface overlapping the proximal part of the first terminal element and the first connection part,
• and wherein an axial distance along the axial direction between the distal facing edge of the device coupling part and the proximal facing side of the device is a second axial distance,
• the first axial distance being less than the second axial distance, such that upon connecting the base plate to the device the proximal facing side of the device contacts the contact surface to force the first connection parts to contact the first terminal element.