Section 01
Understanding Difficult Venous Access
Difficult venous access (DVA) occurs when standard peripheral IV placement fails or is predicted to fail based on patient or vein characteristics. It affects an estimated 10–24% of all hospital patients, rising substantially in emergency, oncology, and pediatric populations.
Repeated failed attempts compound patient distress, delay time-critical treatments, increase infection risk, and place significant burden on nursing staff. The clinical and economic case for technology-assisted access is well established.
Common Contributing Factors
Dehydration and Low Blood Volume
Collapsed veins with poor fill, common in emergency and post-surgical patients.
Scarring from Prior Venipuncture
Multiple prior IV attempts lead to fibrosis and rolling veins in chemotherapy and dialysis patients.
Pediatric and Neonatal Anatomy
Small, fragile, and deep veins with minimal tolerance for movement during insertion.
Deep or Non-Visible Veins
Obesity, dark skin tones, edema, and poor lighting all reduce visual vein identification.
Section 02
Patient Assessment and Vein Selection
Before any attempt, a structured assessment increases success rates significantly. Consider the patient's hydration status, prior IV history, medication history (chemotherapy, anticoagulants), skin condition, and ambient temperature — cold causes vasoconstriction and makes even accessible veins difficult.
Warm the Arm
Apply warmth for 10–15 minutes before assessment wherever possible to promote vasodilation and improve vein distension.
Use Gravity
Position the arm dependently to maximise distension before and during assessment.
Palpate First
Many accessible veins are not visible even in ideal conditions. Rely on palpation, not visual identification alone.
ⓘ Clinical guidelines consistently recommend a two-attempt limit before escalating to a senior clinician or assistive technology. Early escalation — not persistence — improves outcomes and patient experience.
Section 03
Vein Illumination Technology
Vein illumination devices use light to make subsurface veins visible in real time, reducing the reliance on clinician experience or patient anatomy alone. Two primary technologies are in clinical use: transillumination (contact light) and near-infrared (NIR) projection imaging.
Contact Light (e.g. Veinlite)
LED light is applied directly to the skin to backlight veins, making them visible as dark channels against surrounding tissue. Veinlite's patented annular design also acts as a mechanical anchor on the vein, preventing rolling during needle insertion.
Near-Infrared Projection
Near-infrared light is absorbed by haemoglobin and projected onto the skin surface to display a vein map. NIR devices improve vein visibility but do not physically stabilise the vein during insertion.
ⓘ The Veinlite annular design addresses a limitation NIR devices cannot: preventing vein rolling during needle insertion. Visualising a vein and successfully cannulating it are two distinct challenges — Veinlite's contact design tackles both simultaneously.
Veinlite vein finders — our full range
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Section 05
Veinlite vs Near-Infrared Devices
Near-infrared projection devices display a vein map on the skin surface, but do not interact with the vein itself. Veinlite's transillumination technology is fundamentally different: the device contacts the skin and its patented annular pressure anchors the vein in position — acting like a built-in tourniquet — so the vein cannot roll during needle insertion.
Veinlite Transillumination
Reveals and anchors veins
- Contact transillumination reveals vein clearly
- Annular pressure anchors vein against rolling
- Acts as a built-in tourniquet
- Works on all skin tones
- 93% published first-stick success rate
Near-Infrared Projection
Reveals veins only
- Projects vein map onto skin surface
- No mechanical stabilisation of vein
- Vein can roll during needle insertion
- Performance varies by skin tone and depth
- Lower published first-stick success rates
Clinical Demonstration
See why Veinlite outperforms near-infrared devices
Watch Veinlite succeed on difficult patients where other vein finders fail — including dark skin tones, pediatric, obese, and heavily scarred patients where near-infrared devices struggle.
Section 06
Clinical Evidence and Certifications
Veinlite is the only vein finder with published clinical trial data demonstrating a 93% first-stick success rate. Independent studies validate performance across diverse patient populations including pediatric, obese, dark-skinned, elderly, and chronic illness patients.
Veinlite's published clinical evidence is available for review on the Veinlite website, including full trial methodology and outcomes across patient cohorts.
View Veinlite clinical trials →93% First-Stick Success Rate
The only vein finder with published peer-reviewed data supporting this success rate.
Universal Patient Suitability
Clinically validated across all skin tones, body types, age groups, and experience levels.
Patented Vein Anchoring
The only vein illumination technology that prevents rolling during needle insertion.
Shop the Full Veinlite Range
All devices in stock. Ships to US healthcare facilities.