Trombólise no AVCI agudo em um Hospital da Rede Pública: a experiência do Hospital de Clínicas de Porto Alegre

The invention relates to a head having multiple retractable needles for injecting pieces of meat and the injecting needle for same, said head comprising a liquid supply chamber. Injecting needles ( 4 ) extend through the supply chamber. Said needles are provided with a penetration point ( 14 ), a passage ( 12 ), which communicates with the injection openings ( 15 ) located close to the point ( 14 ), and distal end ( 18 ), far from the point ( 14 ), which is provided with a limiting piece ( 17 ). The distal end ( 18 ) is disposed opposite elastic retaining means that can be used to draw the needle back if said needle comes into contact with a bone in the piece of meat to be injected. The supply chamber comprises numerous parallel, interconnected and elongated conduits ( 3 ) through which certain sections ( 4 a) of the needles ( 4 ) can be guided to slide. Said conduits ( 3 ) are provided with a diameter greater than that of said sections ( 4 a) and means ( 5 ) for sealing and guiding/centring said sections ( 4 a) at the inlet and outlet of each conduit ( 3 ). The needles ( 4 ) comprise opposing openings ( 13 ) which communicate with said passage ( 12 ), said openings ( 13 ) being disposed in an area of said section ( 4 a) at a distance from the limiting piece ( 17 ) that is approximately equal to the length of the conduit ( 3 ).