Polilight PDTAbout Polilight® PDT

The Polilight®1 PDT is designed to be a multipurpose 500Watt medical light source with selectable optical output bands. It is designed to be compact, portable and self calibrating; to be used in a number of medical light based treatments or examination applications and have a multiplicity of functions for typically a dermatologist and/or cosmetic surgeon.

The Polilight® PDT‘s primarily application to date to be used in Photo Dynamic Therapy (PDT) applications in either device-drug combination or other purely light based therapies. To date the Polilight® PDT has been successfully used in clinical trials for the treatment of Basal Cell Carcinoma (BCC), Bowen Disease (BD) and Actinic Keratosis (AK). In these applications the Polilight® PDT is used to activate a photosensitive drug.

1 ® - “Polilight” is registered Class10 Medical and Surgical Trade Mark (Madrid convention, EU, USA, Australia).

Polilight® PDT Configurations

The Polilight® PDT is design to include up to 12 optical output bands. The optical bands can be from the Ulta-violet (UVA), bands within the visible spectrum (400-700nm range) and Infra-Red bands (700-1000nm). The Polilight® PDT configuration used within the clinical trial for BBC, BD, and AK ( see above) included a UVA 320 - 380nm, 415nm band +/- 20nm and a broad band 575 - 655 (80nm bandpass).

Polilight® PDT POL.1001 Three band configuration – technical specification

Model

POL.1001 3B
Application

Selection of applications from treatment database within remote control.
Polilight PDT Lamp unit

Characteristics
Length: 340mm
Width: 145mm
Height:: 340mm
Weight: 10 Kg
Input Power: 100 to 240V 50-60Hz.
Light guide: 2 meter
Lamp type: 500W Xenon Arc
Operation - Remote Control

Remote Control Unit

6 button remote with visual display unit, 2 meter cable,

Operator Functions:
Selection of diagnostic or treatment bands
Start/Pause/Stop/Abort diagnosis or treatment
Display real time optical intensity/power (on patient) using power meter
Optical output power selection during diagnosis
Calculate optimized dose time (using power meter)
Check power meter calibration function (see power meter spec)

Automated Background Functions:
Automated self test of light source functionality
Automatic shutdown of light source (if left unattended)
Continuous fault monitor and correction system of light source.
Active hazard minimization function. (shutdown if fault condition detected)

Physical Characteristics
Length: 148mm
Width: 58mm
Height: 20mm
Weight: 100gms
Powered by power supply (no batteries)
Optical Power Meter

Power Meter

Integrated optical power meter, 2 meter cable

Function
Measures optical power intensity on skin surface:
Distance from light guide: 5 to 26cm.
Optical Power measurement range: (0.01 mW/cm2 to 1000 mW/cm2)
Optical power resolution: 0.01mW/cm2 to 1 mW/cm2)
Linearity: 5%
Accuracy:10%
Display update: 0.25s (typical)

Features
Factory calibrated to national standard for all optical output bands
Self testing function (using internal LED factory calibrated)
Indicates low light level error (protection against under treatment)
Indicates high light level error (protection against thermal effects)

Physical Characteristics
Length: 148mm
Width: 58mm
Height: 20mm
Weight: 100gms
Powered by power supply (no batteries)
Optical Output Bands

Band 1

Band 2

Band 3
Band Type (function)

Diagnostic (Ultra-violet UVA)

Diagnostic(Purple)

Treatment (Orange-Red)
Total Optical Output Power

2.7 Watt Optical

1.0 Watt Optical

5.7 Watt Optical
Maximum Output Intensity (5cm distance)

750mW/cm2

170mW/cm2

1.5W/cm2
Optical Output Band Central Wavelength

350 +/- 5nm

415 +/- 5nm

612.5 +/- 5nm
Bandwidth

80 +/- 2nm

40 +/- 2nm

85 +/- 2nm
Standard Dose

Not applicable

Note: light used only for diagnostic purposes at defaulted low power setting

Not applicable

Note: light used only for diagnostic purposes at defaulted low power setting.

37J/cm2
Default for PDT Skin cancer treatments with photoactive cream.

(Note: Other applications can define a specific standard dose for each application)

Treatment Time (for standard dose)

Not applicable

Not applicable

10 seconds to 40 minutes

Calculated automatically from power meter

Specifications are subject to change.