IMPLANT OF BIOMEDICAL APPLICATION AND METHOD OF REGENERATIVE PROCESS STIMULATION WITHIN BONE INJURY AREA Russian patent published in 2008 - IPC A61B17/68 A61B17/80 A61N1/20 A61N1/30 

FIELD: medicine; traumatology.

SUBSTANCE: implant contains angular stabile plate, controllable DC voltage source, microcontacts, internal and external endoelements in the form of mesh cylinders made of shape memory titanium nickelide with bioactive surface coating. Diameter of mesh cylinder of internal endoelement in operation corresponds to internal diameter of medullary cavity of injured bone. Inoperative mesh cylinder of external endoelement is opened, and in operation has diameter equal to external diameter of injured bone. Controlled DC voltage source is established on angular stabile plate, and microcontacts are mounted on stated endoelements. Specified microcontacts have possibility of alternate connection in vivo to positive and negative poles of aforementioned controlled DC voltage source. Method includes passage of current through regenerating bone tissue. Two electrodes representing above-stated internal and external endoelements are implanted in injury area. Internal endoelement is established in internal cavity of medullary cavity of tubular bone in injury area, it collects fragments of injured bone. External surface of tubular bone in injury area contains implanted external endoelement and established angular stabile plate with controlled DC voltage source with adjustable potential difference in output poles. After operation in injury area is complete in vivo, electrostatic field of time-regulated intensity is generated by alternate connection of endoelements through established microcontacts to positive and negative poles of DC source.

EFFECT: method and device provide reliable fixing of fracture and bone fragments of tubular bone in fracture area with prevention of displacement towards medullary cavity and ectad.

2 cl, 2 dwg