Vein visualisation aid device

A visualisation device for vein access, the device comprising:

• a plurality of surface mounted LED light sources arranged in a pattern on a flexible substrate near an edge of the flexible substrate,
• a driver for the light sources,
• the flexible substrate including an opening for needle insertion, said opening forming a region in a field of emission of the light sources, and there is a gap in the flexible substrate so that the flexible substrate may be peeled away with a needle in place, and wherein the substrate forms a generally annular shape around the opening and said gap extends radially, and
• a transparent membrane extending across the opening of the flexible substrate and said membrane is configured to be punctured by the needle, wherein the membrane has an adhesive layer on a distal skin-facing surface, the adhesive layer allowing the membrane to adhere the membrane to a patient's skin surrounding the needle in use to provide a hygienic environment around a puncture site, and wherein the substrate is peelable from the membrane after the membrane has adhered to the patient's skin, being of elastomeric material,
• the driver being removable, in which the device comprises an interface for removable engagement with the driver and the interface and the driver being arranged for physical and electrical engagement to provide drive signals to the substrate, and
• the interface includes an electrical lead for separate engagement with the driver.