Vein visualization device

Abstract

A compact, lightweight vein visualization device excellent in operability. The non-contact type vein visualization device is a non-contact type vein visualization device comprising: an irradiating unit, which irradiates a puncture site with light containing a wavelength component of 900 to 1500 nm, an image capturing unit, which includes an infrared transmission filter and receives the light that has passed the infrared transmission filter to capture an image of the puncture site, image processing means, which performs an extraction process of a vein from the captured image by the image capturing unit, a display unit, which displays the image processed by the image processor, and a power supply unit (not illustrated); the irradiating unit includes a plurality of light sources, which have optical axes inclined with respect to an optical axis of the image capturing unit at an angle A of 15° to 60°, and of a directional angle (2θ1/2) of the light irradiated from the light sources is 40° or more.

Dependencies are inferred from the claim text.