Distal Head Units for Endoscopes

摘要

The present invention is directed to a jet spray head unit suitable for being assembled circumferentially around an elongate medical instrument, comprising a ring-shaped element that is fitted with at least a first set of distally-directed apertures that extend from the distal face to the proximal face of said element, wherein each of said apertures is adapted such that the proximal end thereof may be connected to a source of pressurized irrigation fluid. The present invention further encompasses a method of treatment using said spray head unit.