SHAPE-CHANGING MESH IMPLANT FOR FIXATION AND IMMOBILISATION OF BONE FRAGMENTS AND COVERING BONE DEFECTS OR SPACES ON ONE OR SEVERAL PATIENT'S SPOTS Russian patent published in 2010 - IPC A61F2/28 A61B17/80 

FIELD: medicine.

SUBSTANCE: shape-changing mesh implant for fixation and immobilisation of bone fragments and covering of bone defects or spaces on one or more patient's spots includes mesh from biocompatible metal material, which has multiple leaf sections, forming mesh structure resulting from connection to each other with formation of area, which has internal region and external region. Each leaf section contains internal lamellate part with through hole with possibility to install into it bone screw and four arc-shaped plates, integrally formed with internal lamellate part. In each leaf section with four arc-shaped plates, three arc-shaped plates are brought together, forming group of brought together arc-shaped plates, fourth arc-shaped plate is located remotely from extreme arc-shaped plates of the group, being separate arc-shaped plate. Leaf sections are made of two types, leaf section of one type is characterised by the fact that its arc-shaped plates are bent in such way that bend is directed with prominence clockwise, leaf section of other types are characterised by the fact that its arc-shaped plates are bent in such way that bend is directed with prominence counterclockwise. Leaf sections of both types are connected to each other alternating in turn with formation of longitudinal chains in such way that in each chain separate arc-shaped plate of leaf section of one type entirely smoothly passes into central arc-shaped plate of group of brought together arc-shaped plates of leaf section of other type with formation of common prominence, separate arc-shaped plate of which, in its turn, entirely smoothly passes into central arc-shaped plate of group of brought together arc-shaped plates of leaf section of the other type with formation of common prominence. In internal region of mesh each longitudinal chain of leaf sections is connected with one adjacent longitudinal chain in such way that one of its extreme arc-shaped plates of group of brought together arc-shaped plates of each leaf section of one type entirely smoothly passes with formation of common prominence into extreme arc-shaped plate of group of brought together arc-shaped plates of leaf section of the other type, belonging to said adjacent longitudinal chain, and with other adjacent longitudinal chain in such way that, other of its extreme arc-shaped plates of group of brought together arc-shaped plates of each leaf section of one type entirely smoothly passes with formation of common prominence into extreme arc-shaped plate of group of brought together arc-shaped plates of leaf section of the other type, belonging to other adjacent longitudinal chain.

EFFECT: invention allows to increase rigidity of form-changing mesh implant without increasing efforts, which surgeon has to apply to mesh manually for its deformation while performing operation.

6 dwg