Phototherapeutic apparatus «Malysh» is intended for treatment of hyperbilirubinemia syndrome (jaundice) in newborn babies by applying the light of blue-green spectral region (superbright light-emitting diodes) at a body surface of baby corresponding to the long-wave slope of bilirubin absorption band.
The therapeutic effect is due to photoconversion of ZZ-bilirubin (which is in great amount in organism of infant with a syndrome of hyperbilirubinemia) into photoisomers (lumirubin, Z,E-bilirubin, E,Z–bilirubin, E,E-bilirubin) whose excrection speed is higher than Z,Z-bilirubin.
Besides, the use of light-emitting radiation allows to exclude the side adverse effects inherent in lamp light sources and caused by the presence of intensive ultra-violet (fluorescent lamps) or infra-red (halogen lamps) components in emission spectrum.
Apparatus «Malysh» is intended for operation together with clinical incubator for nursing newborn babies in newborn departments of maternity hospitals, for nursing of prematurely born babies in maternity wards or versatile clinical hospitals, in pathological departments, intensive care departments and resuscitation departments of newborn babies. Apparatus «Malysh» is compatible with all known types of incubators for nursing prematurely born babies which are traditionally used for phototherapy.

The increase of phototherapeutic efficiency of jaundice with the use of radiation of essentially new light sources – superbright emitting-diodes – is due to:
a choice of spectral region in which shielding action of hemoglobin is lower than at use of broadband radiation of the lamps usually used for phototherapy;
increase (due to certain ratio of intensities of blue and green components in radiation of light-emitting diodes) of percentage among products of bilirubin photolysis – lumirubin, which excrection speed is the highest of all isomers.

Distinguishing features
The use of new type of radiation sources (light-emitting diodes) for development of apparatus «Malysh» allows to increase the efficiency of phototherapy, to exclude the side adverse effects inherent in lamp light sources. And, increase of therapeutic efficiency is due to the choice of spectral region providing the maximum concentration of lumirubin – a photoproduct of the bilirubin which is characterized by the highest excrection speed from an organism.
Apparatus «Malysh» on set of medico-technical parameters surpasses considerably corresponding characteristics of lamp analogues. Thus the average time between failures of a light-emitting diode practically exceeds the reliability of fluorescent lamps in 10 times and the reliability of halogen lamps in 300 times.
The absence of side adverse effects while using the apparatus «Malysh»is caused by absence of extraneous wavelengths in emission spectrum of light-emitting diode sources which are not corresponding to the absorption spectrum of bilirubin. As is known, as against apparatus «Malysh», either the intensive ultra-violet component (fluorescent lamps) or infra-red component (halogen lamps) are present in emission spectrum of lamp sources.

Technical data
Spectral region of optical radiation – 0,474-0,505 m
Size of light spot at level of body surface of newborn – not less than 200 x 500 mm.
Lower bound of power density for light flux at level of body surface of newborn – not less than 1,0 mW/cm2.
Upper bound of power density for light flux at level of body surface of newborn - not less than 6 mW/cm2.
The power of light flux is adjusted by two levels
100% of maximum power;
40% of maximum power.
Apparatus works from a circuit of an alternating current of voltage (220±22) V, 50 Hz
Power consumption of apparatus is no more than 100 V×A.
Time of continuous work of apparatus is not less than 24 hours. Time of a finding of the apparatus in a non-working status after 24 h continuous work – not required.
Setup of operation time is no more than 1min.
Duration of phototherapy procedure (automatic mode) is programmed in a range from 1 h till 24 h with step 1 hour (1, 2; 3; 4; 5; 6; 7; 8; 9; 10;11;12;13;14;15;16;17;18;19;20;21;22;23;24 h). An admitted relative error of its installation is no more than10 %.
The control system of the apparatus provides an opportunity of power down and power-up of a source of radiation with preservation of current time of procedure during procedure of phototherapy.
The control system of the device provides the automatic termination of procedure of phototherapy (power down of a source of optical radiation) after time of the influence set on the control panel.
The microprocessor control system of the apparatus provides an opportunity of initialization and control of parameters of influencing radiation on the control panel of apparatus, and also playing of sound signals of special purpose:

Average resource - not less than 10000 h.
Average durability before average repair should be not less than 5 years.
Weight of the apparatus is no more than 4 kg.
Dimensions - 240х200х120 mm

Produced at Group of Medical Companies Kiel LLC