SMALL PULL-OUT LAMP Russian patent published in 2011 - IPC A61B1/07 A61F9/07 

FIELD: electric engineering.

SUBSTANCE: group of inventions relates to medical equipment, namely, to surgical tools, in particular, to a pull-out wide-angled lighting surgical system. The system comprises a source of light and a pull-out wide-angled lamp. In one version of realisation it comprises a source of light, an optical cable, optically connected to the source of light, a tip connected to the optical cable, an optical fibre connected to the tip, besides, the optical fibre is optically connected to the optical cable, a cannula connected to the tip, for location and guiding of the optical fibre in it. At the same time the cannula of small caliber within the range of 23-30 Gauge is arranged with the possibility of pulling-out from the tip and pulling-in in it. Changing length of the cannula protruding from the tip changes its working rigidity. The optical fibre is connected to the cannula so that the distal end of the optical fibre and the distal end of the cannula remain matched as length of the cannula protruding from the tip changes. In other version of the system realisation the optical fibre is a composite part of the optical cable and is optically connected to it to receive and transfer a beam of light to illuminate the area.

EFFECT: using group of inventions will make it possible to increase efficiency of performing manipulations with eye tissue by provision of the required rigidity of the cannula.

43 cl, 5 dwg