A subcutaneous access device of the invention comprises: a multi-layered structure capable of use in a medical imaging procedure; a light source for transillumination of a body portion of interest of a patient's body; and an attachment portion for attaching the device to the patient's body in a manner such that the body portion of interest is outwardly exposed on a side of the patient's body opposite the light source. The device facilitates hands-free transillumination of the body portion of interest. Kits for subcutaneous access comprise the subcutaneous access device and a light detector for detecting light emitted from the subcutaneous access device.