A new laser perforator has been invented for perforating skin with a perforation to permit blood under a surface of the skin to flow out, the perforator in one embodiment having a laser light source for producing an output laser beam, and a mode distribution apparatus for intercepting the output laser...http://www.google.se/patents/US5908416?utm_source=gb-gplus-sharePatent US5908416 - Laser dermal perforator
