Device for administration

摘要

The application relates to a device for an intermittent or continuous administration of a therapeutical substance, such as insulin, comprising an injection part and a fluid delivery part (3,4). The fluid delivery part normally comprises a reservoir (4), transferal means e.g. in form of a pump and a house (3), and the injection part normally comprises a base plate (10), a cannula part (1,16) comprising a cannula (9) extending past the proximal side of the base plate and means for fixation of the base plate to the skin of the user. According to the application the device comprises a base plate (10), a cannula part (1, 1b) comprising a body providing a through-going opening leading liquid to a cannula (9) which cannula (9) extends past the proximal side of the base plate (10) and means (21) for fixation of the base plate to the skin of the user wherein a flexible part is arranged in an area between the subcutaneously positioned section of the cannula (9) and the fluid delivery part (3, 4).

主权项

1. A device for delivering fluid which before injection comprises three separate parts: an injection part, a cannula part and a fluid delivery part and after injection the device comprises two separable parts: an injection part and a fluid delivery part as the cannula part is attached to the injection part when inserted into a subcutaneous position;
the fluid delivery part comprising a reservoir, a pump and a housing, the injection part further comprises a base plate, the base plate comprises an adhesive portion for fixation of the base plate to the skin of the user, the base plate further comprising a connector for releasably connecting the fluid delivery part to the base plate such that the fluid delivery part is separable from the base plate during use, the connector extending from a distal side of the base plate, the base plate further comprising a surface on the distal side corresponding to an inserter device for the cannula part for attaching the cannula part to the injection part; and the cannula part is before injection placed in a separate inserter device and comprises a body and a cannula, the cannula is made of a soft material and configured to be inserted by an injection needle of the inserter device, the body providing a through-going opening configured to lead liquid to the cannula, the cannula part configured to be inserted into and attached to the base plate after the base plate has been positioned on the skin of the patient, the cannula part comprising a cannula part locking mechanism configured to attach the cannula part to the base plate independent of the fluid delivery part, the cannula extending past a proximal side of the base plate after injection of the cannula into a use position, wherein the device further comprises a flexible tube connecting the connector of the injection part at one end and the body of the cannula part at a second end to provide fluid communication between the reservoir and cannula.