How does the HF-410A “see” veins?
The device illuminates the skin with near-infrared light (wavelength 750~950 nm). Because hemoglobin in blood absorbs near-infrared light more strongly than the surrounding tissue, a high-precision camera and projection module process the signal and project subcutaneous superficial veins onto the skin surface in real time, helping medical staff observe, assess and locate veins for venipuncture assistance.
Which patient groups and departments benefit most from it?
It is suitable for patients with poor venous conditions or difficult venipuncture, such as infants and young children, the elderly, obese patients, patients with dark skin, and patients with thin or weak veins requiring repeated puncture. It is commonly used in pediatrics, neonatology, emergency departments, outpatient blood collection, ICUs, geriatrics and hemodialysis.
How do I choose among the six projection colors?
The device offers six projection colors: black and white, green, inverted green, red, purple and inverted purple. Select the color with the highest contrast according to the patient's skin tone, skin condition and ambient light to make the course of the veins clearer.
What are the differences between the Normal, Enhanced and Deep modes?
Normal mode reduces interference such as fine hair to make veins clearer. Enhanced mode increases the clarity of vessel detection and suits patients with thin or indistinct veins. Deep mode works with the three depth indications (Deep, Medium and Shallow) to help determine vessel depth and suits patients whose veins lie deeper.
What is the imaging distance, and how thin a vessel can be identified?
The optimal imaging height is 200 ± 20 mm, i.e. the image is clearest when the device is about 20 cm from the skin. The minimum detectable vessel diameter is ≥ 0.4 mm and the maximum detection depth is ≤ 8 mm, covering the superficial venipuncture scenarios common in outpatient and ward settings.
How do I choose between handheld, desktop stand and mobile stand?
The device supports handheld use and can be fitted with an optional desktop stand or mobile stand. Handheld use suits settings requiring flexible movement, such as outpatient clinics and blood collection rooms; the desktop stand suits fixed workstations; the mobile stand suits ward rounds and prolonged hands-free operation.
What are the battery operating time and charging time?
The built-in 2200mAh battery provides over 4 hours of operating time and charges in no more than 3 hours using a 100~240V power adapter (12V 2.5A), meeting the needs of one shift in outpatient and ward settings.
What information does the screen show? Is there a power-saving feature?
The display shows battery level, brightness, color, mode and sleep status, so the device status is always visible. It automatically enters sleep mode after 30 minutes of inactivity, saving power and extending battery life.
What should I note for daily use and cleaning maintenance?
Keep the device perpendicular to the observation area during use for the best display effect. For cleaning, power off the device and wipe the housing and projection window with a soft cloth moistened with a neutral detergent. Avoid strong acid or alkaline disinfectants and do not spray directly, so that liquid does not penetrate the optical module.
How are product certification and after-sales service guaranteed?
The HF-410A Vascular Imaging System has obtained a medical device filing certificate (粤穗械备20240365) and is supplied directly from the manufacturer, Olsmed Medical. The filing certificate and qualification documents required for hospital tenders and procurement are available from Olsmed Medical, together with full lifecycle services such as installation training, repair and maintenance, and spare parts supply.
Olsmed Medical 