Method and device for the osteosynthesis of bones

A method for the fixed osteosynthesis of bones by means of intra-marrowial fixation, comprising:

• inserting a tube (2) made of non-elastic, strong but pliable and biologically inert, material one end of which (2') being sealed, and the other end being open, into the marrow cavity of a bone (1) my means of an insertion instrument (3),
• introducing a fixation part (4) into the open end of the tube (2) for the fixation of the tube (2) in an access hole of the bone (1) to the marrow cavity the fixation part being tightly connected with the tube (2),
• cutting a surplus part of the tube (2),
• introducing a vent part into the fixation part (4) and firmly and tightly fixing it in the fixation part (4), the vent part (12) comprising a liquid passage through said vent part, means (8) for connecting a line (14) for introducing a pressurized liquid (10), into the tube (2) and for releasing the liquid from the tube through said liquid passage, and valve means (9) for opening and closing the liquid passage,
• introducing the pressurized liquid (10) into the tube (2) through the liquid passage, and
• closing the valve means (9) and disconnecting the line (14) from the vent part (12),
• and withdrawing the tube (2) from the marrow cavity of the bone (1) through the access hole.

A kit for a device for the fixed osteosynthesis of bones by the intra-marrowial method, comprising:

• a tube (2) made of a non-elastic, strong but pliable and biologically inert, sterilizable material, adapted to be inserted into the marrow cavity of a bone (1), one end (2') being sealed, and the other end being open, and
• a connection part (13), comprising:
• a fixation part (4) designed to be firmly inserted into the open end of the tube (2) to adaptively fixate the tube (2) to an access hole of the bone (1) to the marrow cavity and for a tight connection with the tube (2), and
• a vent part (12) designed to be firmly inserted into the fixation part (4) and for a tight connection therewith, and comprising a liquid passage through said vent part, means (8) for connecting a line (14) for introducing a pressurized biologically inert, sterilizable or sterilized liquid (10) into tube (2) and for releasing the liquid from the tube through said liquid passage, and valve means (9) for opening and closing the liquid passage;
• and
• a biologically inert sterilizable or sterilized liquid (10) for introduction into the tube (2) of the device.