Courage + Khazaka electronic GmbH

Scientific Devices

Visiopor® PP 34 N

Monitoring Acne Lesions by Skin Fluorescence

visiopor start

The Visiopor® PP 34 camera uses a specific UV-light to visualize the fluorescing acne lesions of an area of minimum 8 x 6.4 mm. The orange-red fluorescence indicates the presence of Propionibacterium acnes bacteria within clinically non-evident (follicular impactions and microcomedones) and clinically evident (comedones, papules and pustules) lesions.

 

 





What can be measured?

Advantages of the Visiopor®

Fields of Application

Technical Data

 

What can be measured?

Acne is a common disorder of the pilosebaceous follicles with the multifactorial pathogenesis. It typically begins in adolescence when androgen hormones stimulate the production of sebum and proliferation of kamerastirnfollicular epidermis. The openings of hair follicules become clogged with oil secretion and corneocytes. In consequence initially invisible lesions (microcomedones) and then clinically evident comedones develop. Microcomedones and comedones are further colonized by P. acnes bacteria which promote inflamed acne lesions (papules and pustules) through the production of proinflammatory mediators, free fatty acids and porphyrins.

The presence of porphyrines can be demonstrated by orange-red fluorescence in the follicle openings by examining the skin under appropriate UV-A light. The intensitiy of follicular fluorescence and the extent of facial involvement are proportional to the population densitiy of P. acnes and porphyrin content at the skin surface. Clinical improvement after therapy is accompagnied by significant reduction of the porphyrin concentration and the number of P. acnes, respectively.

kameraschlaefeKamera im HalterVisiopor

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Advantages of the Visiopor®

  • The Visopor® is USB based and can be connected directly to a computer.
  • Non-invasive, easy to use and economic.
  • It comes with an easy to handle evaluation software (distinguishing  the reddish-orange porphyrine bacteria from other yellowish-greenish  flourescents in quantity, size and intensity).
  • The colour thresholds to distinguish between porphyrines and other fluorescents can be set manually by the user.
  • All results for the porphyrines and the other fluorescents can be can be exported into Excel® spreadsheets for statiscal evaluation.
  • The camera is also suitable for porphyrine detection on the scalp.
  • The Visiopor® can also be used with  Corneofix®  skin strippings.
  • Interesting literature has been published with the device.

Visiopor haareVisiopor softwareVisiopor2Visiopor1Visiopoe3Gesicht reinigen

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Fields of Application:

There are numerous applications in cosmetology and dermatological research especially in the field of acne.

  • Efficacy testing of anti-bacterial products, cleansers and drugs against P. acnes. 
  • Dermatological basic research
  • Determination of the comedogenic and comedolytic activity of topically applied products.
A very interesting recent application is the evaluation of the duration of UV-A protection in vivo. UVA protection is a very important factor in modern sun screen products. When applying UVA protection to the skin, porphyrine fluorescence visible before with the special UV light of the Visiopor® is no longer visible and can only been seen again, when the UVA protection on the skin surface is gone.
Visiopor SPF 20 T0 Visiopor SPF 20 T1 Visiopor SPF 20 T2
skin with fluorescence before
applying sunscreen
    immediately after application   after 4 h
Visiopor SPF 0 T0 Visiopor SPF 0 T1 Visiopor SPF 0 T2
skin with fluorescence before
applying day cream without SPF
  immediately after application   after 4 h

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Brochure Download

Technical Data

Dimensions: 12 x 5.5 x 5.5 cm, Weight: 220 g,  Cable length: 1.5 m, Port: USB 2.0, Power supply: 5 V DC via computer,  UV-light source: 16 UVA- LEDs, 375...385 nm,  Resolution: 5:4, 1280 x 1024 pixel, Image size: minimum  8 x 6.4 mm, Camera button freezes the image

Computer: Windows® 7/8/10, performance must meet system requirements, USB 2.0/3.0

Technical changes may be made without prior notice.

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