METHOD FOR SECURING TISSUE OR CORRESPONDING PROSTHESIS IN OPENING MADE IN BONE OF HUMAN OR ANIMAL, AND FASTENER FOR METHOD Russian patent published in 2020 - IPC A61B17/86 A61F2/08 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine. Method of securing a tissue or a corresponding prosthesis in a hole made in a bone of a human or animal comprises the steps of: providing fastener (3) and at least one anchor retainer (6) containing a fusible material; making hole (2) in human or animal bones, wherein opening (2) comprises at least one inlet on bone surface and inner wall and has dimensions corresponding to fastener (3) installed in opening; pressing of tissue or prosthesis in hole (2) by placing said tissue or prosthesis in hole (2) and pressing to first section of inner wall by inserting fastener (3) with force into hole or by expanding fastener in hole; simultaneous transfer of energy to meltable material of anchor retainer (6) and movement of anchor retainer (6) relative to fastener (3) for melting at least part of meltable material near second section, different from first section of inner wall, and providing its contact with said second wall section; curing of melted material for hardening in contact with second section of wall. Fastener for securing tissue or prosthesis in hole (2) made in bone of human or animal, contains: a proximal end, a distal end, an axis of the fastener extending between the proximal end and the distal end, and a peripheral surface extending around said axis. Fastener (3) further comprises at least one first portion extending at least partially around the fastener axis and at least a second portion other than said first portion. Second section of the fixing device contains the second pressing sector for retention of the fixed tissue or the prosthesis to be fixed in hole (2) made in human or animal bones. First section of fastener is intended for anchor fixation of fastener in hole (2) made in bone of human or animal. First section and the second section are spatially separated from each other, completely independent from each other and located on opposite sides. Set for method implementation contains fastener (3), at least one anchor retainer (6) and appliance (13) for anchor fixation. Attachment (13) for anchor fixation comprises a distal end adapted for anchor fixture (6) and configured to transmit energy to anchor fixture (6) and to move anchor fixture (6) relative to fixture (3).

EFFECT: invention provides improved stability of fixation with reduced risk of mechanical damage of fixed graft.

25 cl, 45 dwg