An insertion device and insertion set. The insertion device for inserting at least a portion of at least one piercing member of an insertion set through the skin of a patient includes a device housing (20) a carrier body (30) and a driver (34). The carrier body is slidably received within the device housing (20) for movement between an advanced position and a retracted position. The carrier body (30) also includes a receiving structure (514) to support the insertion set in a position with the at least one piercing member (404) oriented for insertion through the skin of the patient at a predetermined or variable angle relative to the skin of the patient upon movement of the carrier body (30) from the retracted position to the advanced position. The driver (34) is operatively coupled between the device housing (20) and the carrier body (30) to urge the carrier body (30) from the retracted position toward the advanced position to place at least a portion of the at least one piercing member (402) of the insertion set thorough the skin of the patient to install the insertion set to the patient. The receiving structure (514) of the carrier body (30) is removable from the insertion set while maintaining the installation of the insertion set to the patient.Linvention concerne un dispositif dinsertion et un ensemble dinsertion. Le dispositif dinsertion servant à insérer au moins une partie dau moins un élément de perçage dun ensemble dinsertion dans la peau dun patient comprend un logement, un support et un élément de commande. Le support est reçu par glissement dans le logement du dispositif de manière à pouvoir passer dune position avancée à une position rétractée. Le support comprend également une structure de réception destinée à servir de support à lensemble dinsertion dans une position dans laquelle ledit élément de perçage est orienté de manière à être inséré dans la peau du patient à un angle prédéterminé ou variable par rapport à la peau du patient, lorsque le suppo
