Patch for Use with an Injector Device

A patch for placement on skin and for use with an injector device, the patch comprising:

• a first layer on a first side of the patch;
• a second layer on a second side of the patch opposite to the first side;
• a sealed fluid reservoir between the first and second layers;
• a fluid contained within the fluid reservoir;
• a moveable rupturing element configured to pierce and rupture the fluid reservoir to allow release of the fluid out of the fluid reservoir;
• and
• an aperture extending at least partially through the patch, and configured to receive an injection needle of the injector device.

A system comprising:

• a patch for placement on skin;
• and
• an injector device for use with the patch, wherein the injector device comprises a housing configured to receive a container of medicament,
• wherein the patch comprises
• a first layer on a first side of the patch,
• a second layer on a second side of the patch opposite to the first side,
• a sealed fluid reservoir between the first and second layers,
• a fluid contained within the fluid reservoir,
• a moveable rupturing element configured to pierce and rupture the fluid reservoir to allow release of the fluid out of the fluid reservoir, and
• an aperture extending at least partially through the patch, and configured to receive an injection needle of the injector device.