Method and device for checking an adhesive connection between a hollow needle or cannula and a holding part

A method for checking an adhesive connection between a hollow needle or cannula and a holding part, wherein the hollow needle or cannula is inserted with play in a holding portion of the holding part, and an intermediate space between the hollow needle or cannula and the holding portion is at least partially filled with an adhesive body, the method comprising detecting the adhesive body by an optical detection device, transmitting data relating to the adhesive body from the detection device to an evaluation unit in which the data are evaluated, wherein the detection device has a camera and the method further includes generating image data of the adhesive body with the camera, determining or calculating an ACTUAL volume and/or an ACTUAL configuration of the adhesive body from the image data of the adhesive body, and comparing the ACTUAL volume and/or the ACTUAL configuration of the adhesive body with a TARGET volume and/or a TARGET configuration of the adhesive body;

• wherein the adhesive body is illuminated with at least one light source during detection by the detection device;
• and wherein the adhesive is first pre-hardened, the detection of the adhesive body takes place subsequently by the detection device, and the adhesive is then further hardened.