IMPLANT FOR INTERBODY FUSION MADE OF POROUS MATERIAL AND IMPLANT HOLDER FOR ITS INSTALLATION AND REMOVAL Russian patent published in 2017 - IPC A61F2/44 A61F2/46 

FIELD: medicine.

SUBSTANCE: implant for interbody fusion is made in the form of a body with parallel side walls, the upper and lower walls are smoothly bent with corrugated surfaces in transverse direction, the dorsal end has the form of a plane perpendicular to the side walls. From the ventral end, the upper and lower walls are inclined against each other, forming a the semi-oval rounding. The implant is made of porous titanium nickelide with continuous porosity, has a fiberglass titanium sleeve with internal thread. In the center of the dorsal end plane a cylindrical channel is made where a reinforcing sleeve is impressed. The cylindrical channel extends from the end of the dorsal end to the level of the beginning of the upper and lower walls rounding, the latter having a width different from that of the side walls. Each corrugation protrusion has a ventral surface extending from the trench with a slope towards the dorsal end of the implant at an angle of 40-45° relative to the horizontal plane, and a dorsal surface extending from the cavity vertically relative to the horizontal plane. The implant holder for the above implant installation and removal consists of a handle and a rod with a working end. The implant holder has a T-shape, in which the rod corresponds to the vertical stroke of letter T, and the handle corresponds to the transverse stroke of letter T. The handle has an impact pad on the upper side in the rod projection and two impact pads on the underside of the rod sides. The working end of the rod has the form of a threaded portion with diameter corresponding to the internal thread of the reinforcing sleeve of the above implant. The working end is separated from the rod by a circular platform, the diameter of which is equal to the outer diameter of the reinforcing sleeve of the above implant.

EFFECT: increased strength, stability of implant fixation, decreased probability of implant migration and prevention of limitation of visual control of the operating field in a narrow space including neurovascular formations.

2 cl, 10 dwg, 1 ex