1-Near-Infrared Vein Finders This is the most intuitive tool for dealing with superficial veins (within 10mm subcutaneous), such as Vein Finder Working principle: Hemoglobin in the blood absorbs near-infrared light, …
1. Patients with difficulty in venipuncture Typical population Obese people (with thick subcutaneous fat layers and deeply hidden veins). Infants and children (with thin blood vessels and low cooperation). The elderly …
I. Core Technical Principles Near-infrared imaging (NIR Technology) The absorption characteristics of hemoglobin: Deoxyhemoglobin in veins has a higher absorption rate for near-infrared light of specific wavelengths …
1.Thickening of subcutaneous fat Deeper vein location: The subcutaneous fat layer of obese people is thicker, which may cause the veins to be covered by fat, making them deeper and difficult to accurately locate through …
In medical practice, green light (with a wavelength of about 540nm) is generally considered the color of visible light that is most helpful in locating veins. Here’s the explanation: 1. Optical principle: Deoxyhemoglobin …