9 results about "Graft fixation" patented technology

Systems and methods for preparing a ligament graft for a ligament reconstruction procedure are provided. In general, the described techniques utilize a graft holder construct having a graft preparation holder and a suture assembly removably coupled thereto. The graft preparation holder includes an elongate support rail having a longitudinal axis, and a plurality of leaf segments positioned along the longitudinal axis in a spaced relationship and extending laterally from the support rail. The leaf segments can bend to a graft holding configuration so as to define a graft receiving channel configured to receive a graft therethrough. The holder also has at least one support structure configured to mate with the leaf segments to provide stability and rigidity to the segments. The suture assembly has at least one suture tail that can be pulled to affix the suture assembly to a graft without penetrating the graft.

An anchoring system for a knee ligament reconstruction that can secure a graft within a bone tunnel. The anchor system includes an anchor having a tubular body extending along a longitudinal axis from a proximal end to a distal end. A conical head is fixed to the distal end of the tubular body. A series of expandable segments are positioned along the tubular body and moveable along the body into a compacted, deployed position where the segments expand radially to engage the inside of a bone tunnel. A threaded drive member may move the segments to the deployed configuration once the anchor and graft are positioned in the bone tunnel. A drive tool may be used to advance the drive member and can include a moveable shaft that pushes a strike plate out of the rear of the handle to provide an indication whether the anchor has been fully deployed.

Various methods and devices are provided for a graft fixation device for fixing a graft member within a bone tunnel. In one embodiment, a graft fixation device is provided having a radially expandable sheath adapted to be disposed within a bone tunnel, and a sheath expander adapted to be received within the radially expandable sheath to expand the sheath and thereby anchor a graft between the sheath and the bone tunnel. In an exemplary embodiment, the graft fixation device is particularly useful to affix a graft within a femoral tunnel.

The invention provides devices for securing soft tissue grafts at a surgical site. A suspension graft securing device (100) for securing a replacement graft ligament in a bone tunnel includes an elongated anchor member (102) having a top surface (114) and a bottom surface (116) and adjacent first and second suture receiving holes (110, 112) extending from the top surface to the bottom surface thereof. A graft support loop element is attached to the anchor member and is formed from a suture (104) having first and second branches (124, 126). The suture passes through the first and second suture receiving holes such that first and second loops (132, 134) are formed in the suture. The first and second loops extend from the bottom surface while the first and second branches extend from the top surface. A joint (136) is formed in the second branch extending from the top surface and the first branch extends through the joint.

A system for connecting to a graft to in a reconstruction surgery, comprising: a suture construct; and a staple configured to anchor the suture construct to the graft.

The present invention discloses a ligament graft fixation device, which respectively sets a femoral end unfolding structure and a tibial end unfolding structure on the femoral end column and the tibial end column; first through holes, second through holes and third through holes are respectively set on the tibial end of the push rod and the unfolding ends of the two unfolding structures, which are respectively used for the split beam parts at both ends of the ligament graft to pass through. After entering the bone tunnel, the femoral end unfolding structure can unfold in the trapezoidal bone tunnel on the femoral side to form an umbrella-shaped structure and be fixed there, and the tibial end unfolding structure can unfold in the trapezoidal bone tunnel on the tibial side to form an umbrella-shaped structure and be fixed there. After the ligament graft is implanted, the split beam parts at both ends are bilateral umbrella-shaped, realizing large-area contact with the bone surface in the tension direction, which is beneficial to better restoring the postoperative joint kinematics and the normal force conduction mode of the tendon-bone interface.

Devices for fixation of a soft tissue graft at a surgical site. A suspensory graft fixation device (100) for securing a replacement graft ligament in a bone tunnel includes an elongated anchor member (102) with top (114) and bottom (116) surfaces, and adjacent first (110) and second (112) suture receiving apertures extending from the top surface to the bottom surface thereof. A graft supporting loop element is attached to the anchor member and is formed of a suture (104) having first and second limbs (124, 126). The suture is threaded through the first and second suture receiving apertures such that first and second loops (132, 134) are formed in the suture. The first and second loops extend from the bottom surface, while the first and second limbs extend from the top surface. A splice (136) is formed in the second limb extending from the top surface and the first limb extends through the splice.

A graft arrangement platform for ligament reconstruction in orthopedic surgery, comprising: an operating table, a first clamping member, a second clamping member, a folding positioning body, the folding positioning body is arranged at one end of the operating table, the second clamping member and the first clamping member are configured: the first clamping member is configured to clamp one end of the graft, the other end of the graft is clamped to the second clamping member around the folding positioning body, the second clamping member is located in the first configuration position, in the first configuration position, the second clamping member is arranged opposite to the first clamping member, and the second clamping member is movably radially movable relative to the folding positioning body; the second clamping member is configured to be movably moved to the second configuration position, in the second configuration position, the second clamping member is on the same side of the first clamping member, and the graft enters a graft folding arrangement state with the folding positioning body as a folding point, and a ligament anchor is configured to pass through the graft and be fixed on the folding positioning body.

The present invention provides a stent graft fixing and releasing device and a stent graft delivery system, which relate to the field of medical devices. The present invention includes a guide seat, a fixer, a locking structure, and a tie rod made of a flexible material; the guide seat is provided with a first mounting through hole axially penetrating the guide seat, and the fixer is provided with a second mounting through hole axially penetrating the fixer; there are a plurality of tie rods, one end of each of the plurality of tie rods is fixed to the fixer, and the plurality of tie rods are spaced in pairs around the radial circumferential surface of the fixer, and the other ends of each of the plurality of tie rods are fixed to the guide seat by the locking structure, and when the fixer moves in a direction away from the guide seat, the tie rod can be detached from the locking structure. The present invention alleviates the technical problems that the existing stent graft fixing and releasing device is very easy to scratch the blood vessel in a narrow and curved blood vessel channel, causing blood vessel damage or even rupture, which will cause fatal damage to the patient if not handled with care, thereby leading to high surgical difficulty and low surgical success rate.