Polymatech Electronics Limited · Semiconductor & Medical Imaging
Ravaye™ E2
Vein Finder — near-infrared vein visualisation system. Version Poly2025.
The Ravaye™ E2 uses near-infrared light to detect veins beneath the skin, then projects their position onto the skin surface directly above them. Qualified medical personnel can observe the displayed vasculature to assist in locating a vein of suitable size and position for venipuncture and other procedures requiring the location of superficial veins.
Held directly overhead, the device accurately locates the centre line of a vein. Increasing displacement from directly overhead results in an offset in the displayed position, so the centre line — not the displayed width — should always be used as the target.
Section 01
Intended use
The Ravaye™ E2 Vein Finder is intended to assist qualified healthcare professionals in visualising certain superficial veins. The device uses near-infrared illumination to enhance the visibility of subcutaneous veins, projecting their position directly onto the skin surface.
It is intended to be used as a supplement to appropriate medical training and experience. It is not a substitute for clinical judgment and should not be used as the sole method for locating veins. Practitioners should always follow the medical protocols of their facility.
Section 08
Technical specifications
From the Ravaye™ E2 user manual, document reference PEL-VF-100-UM-US Rev. 1.0.
- Detection method
- Near-infrared illumination technology
- Infrared wavelength
- 760–940 nm
- Detection depth
- 0–10 mm (0–0.39 in)
- Optimal working distance
- 20–26 cm (7.9–10.2 in)
- Vessel position accuracy
- ±0.3 mm (±0.012 in)
- Vessel resolution accuracy
- ±0.3 mm (±0.012 in)
- Projection technology
- DLP projection
- Working noise
- ≤ 35 dB
- Battery
- Rechargeable lithium, 4,900 mAh
- Battery duration
- Approximately 3.5 hours
- Power supply
- 5 V / 4.5 A · Input 100–240 V, 50/60 Hz
- Weight
- 450 g (15.9 oz)
- Dimensions (L×W×H)
- 24 × 6 × 6.5 cm (9.4 × 2.4 × 2.6 in)
- EMC
- IEC 60601-1-2 · CISPR 11 Group 1, Class B
Specifications are subject to change in the interest of product improvement. Refer to the device labelling for the configuration of a specific unit.
Section 06
Display settings
The projection is adjustable, because vasculature, skin and room lighting are not consistent between patients.
12 options
Colour
White, yellow, purple, red, indigo, green, blue, and five paired combinations.
9 modes
Mode
Default, enhance, hair removal, guide line, and five mixture colours.
3 sizes · 6 levels
Size & brightness
Projection size L, M or S; brightness across six levels.
USB-C
Photograph
Save real-time vein images, retrievable over USB Type-C.
Section 05
Use and operation
Position the device
Hold 20 to 26 cm above the skin surface and scan the area of interest.
Centre over the vein
Ensure the projected display is centred directly above the vein’s centre line. Tilting offsets the projection from the true position beneath the skin.
Optimise the image
Adjust height and angle slightly. Moving closer or further can bring additional veins into view depending on vasculature, room lighting and vein depth.
Scan, then enhance
Use default mode to narrow down locations, then switch to enhance mode for deeper veins.
Confirm before the procedure
Verify location and suitability using standard medical techniques — visualisation, palpation and sound clinical judgment.
Section 02 & 10
Known limitations
Stated plainly, because a procurement team will find them anyway and would rather read them here.
The device displays only superficial vasculature and does not indicate vein depth. The maximum depth at which veins are displayed varies by patient.
Display quality is affected by vein depth, skin conditions such as eczema or tattoos, hair, scarring, highly contoured skin surfaces and adipose tissue. Some patients’ veins, or a portion of them, may not display well or at all. Projection may not display veins under bright light such as direct sunlight.
The device must not be used to locate veins in the eyes, and the display light should not be shone into the eyes for a prolonged period.
Section 03 & 07
Supplied with the device
- Main unit
- Ravaye™ E2 Vein Finder
- Charging
- USB Type-C cable and adapter
- Case
- Aluminium carrying case
- Documentation
- User manual, product certificate, warranty card
- Calibration
- Calibration card
- Optional
- Table stand and mobile stand, available separately
Projection accuracy is verified against the supplied calibration card before first use and periodically according to facility procedures. A device that fails calibration should be withdrawn from clinical use and serviced.
Section 13
Regulatory and manufacturing
- Classification
- Class I Medical Device · 510(k)-Exempt · Product Code KZA
- United States
- U.S. FDA Registered Establishment & Device Listed
Registration No. 3027571036 · Listing No. D588842 - India
- CDSCO Class A Medical Device · Registration No. POLYMA-Kanch-TN/M/IVD/021765
- Quality systems
- ISO 13485:2016 · ISO 9001:2015 · ISO 14001:2015
- Europe
- CE Marked under the Low Voltage Directive 2014/35/EU
- Manufacturer
- Polymatech Electronics Limited
SIPCOT Hi-Tech SEZ, Plot No. OZ 13, Oragadam, Kancheepuram District, Greater Chennai, Tamil Nadu 602105, India - U.S. Agent (FDA)
- Nisene Technology Group
417A Salinas Road, Royal Oaks, CA 95076, USA - Document reference
- PEL-VF-100-UM-US · Rev. 1.0 · July 2026
The name
Named for the Sanskrit Ravi — the Sun, the source of light and life.
Ravaye™ is a trademark of Polymatech Electronics Limited.