Patent ID: 8628500

Claim:
A cartridge unit for loading into an insertion device, the cartridge unit comprising: a protective member comprising a substantially hollow, elongate housing; a subcutaneously insertable element; and a penetrating member configured to penetrate the skin of the patient to enable subcutaneous insertion of the insertable element, wherein: the cartridge unit is configured for loading into and unloading out of an insertion device; the protective member houses at least the subcutaneously insertable element and the penetrating member prior to the insertable element and penetrating member being protracted from the protective member toward the body of the patient by the insertion device for subcutaneous insertion of the insertable element into the body of the patient, the protective member houses at least the penetrating member after the insertable element has been subcutaneously inserted into the body of the patient and the penetrating member has been retracted into the protective member by the insertion device.