Patent classifications
A61F2002/0835
DYNAMIC FIXATION IMPLANT AND METHOD OF USE
Implants and related methods for achieving dynamic fixation are disclosed. The implant comprises a head portion at a proximal end of the implant comprising external threads and a first axial through hole, and an anchor portion extending from the head portion at a distal end of the implant comprising external threads and a second axial through hole in communication with the first axial through hole. The implant further comprises a flexible constraint member extending within the first and second axial through holes comprising a first end portion coupled to the head portion and a second end portion coupled to the anchor portion. At least one of the head portion and the anchor portions forms a breakaway portion with aligned internal and external circumferential grooves configured to concentrate stress thereat such that the breakaway portion fractures via forces acting on the implant to separate the head and anchor portions.
SYSTEMS, DEVICES, AND METHODS FOR SECURING TISSUE USING SNARE ASSEMBLIES AND SOFT ANCHORS
Systems, devices, and methods are provided for securing soft tissue to bone. One exemplary embodiment of a surgical soft tissue repair device includes a snare assembly coupled to a soft anchor in which the soft anchor has a first, unstressed configuration that can be used to insert the anchor into bone and a second, anchoring configuration that can be used to fixate the anchor in the bone. The snare assembly can be configured to actuate the anchor from the first configuration to the second configuration, and it can also be used to engage and approximate tissue by drawing the tissue closer to the anchor fixated in the bone. The snare assembly can be used in conjunction with a number of different anchor configurations, and other exemplary systems, devices, and methods for use with soft tissue repair are also provided.
DYNAMIC LIGAMENT REPAIR DEVICE
A dynamic ligament repair device includes a suture, a femoral side suture anchor and a threaded screw or housing implant. The screw is configured for placement in the tibia, or alternatively in the femur. A spring is housed inside an axial bore in the threaded screw. In some embodiments, the spring is a compression spring. A moveable spring button is positioned inside the axial bore adjacent a distal end of the spring. The spring button engages the spring directly in some embodiments. In alternative embodiments, an intermediate structure such as a spacer is positioned between the spring button and the spring. The suture extends between the spring button and the suture anchor. When the joint flexes or extends, the spring button travels inside the axial bore and dynamically compresses or relaxes the spring.
Ligament assembly
A ligament assembly comprising a first ligament anchor (9) connected to a second ligament anchor (14) by a ligament (18) a resilient element (40) being associated with the first ligament anchor (9) and a ligament tension adjuster (44, 50) being associated with the second ligament anchor (14). The resilient element (40) may be disposed within the first ligament anchor (9) and the ligament tension adjuster (44, 50) may be disposed within the second ligament anchor (14).
SYSTEM AND METHOD FOR REPAIRING A TENDON
An anchor for repairing a tendon having a first free end positioned adjacent a second free end to form an adjoined section of tendon is provided. The anchor includes a first anchor section having a fastening mechanism. The fastening mechanism of the first anchor section is configured to secure to a second anchor section to secure the first free end of tendon to the second free end of tendon.
Implant devices and systems for stabilized fixation of bone and soft tissue
An implant system for providing stabilized fixation of tissue includes a button having a slot, a band threaded through the slot, and a lock including a member having a slot for receiving an end of the band and a movable member for clamping the band in place. The movable member is movable between an open position and a locking position. The lock is a plug assembly which includes a flange. The slot is disposed in the flange. The movable member may be a cap which is movable between clamping and non-clamping orientations relative to the flange, or it may be a screw wherein a portion of the screw performs the clamping function. The flange is a portion of a plug, which plug further includes a boss extending from one side of the flange.
Tenodesis anchor
A tenodesis anchor having an anchor member coupled to at least one fiber loop. The anchor member is inserted into a bone and the loop closed about a tendon to be anchored to the bone. Closing the loops additionally deforms the anchor member so that it remains within the bone, thereby securing the tendon trapped in the loop to the bone without the use of a staple.
DEVICE, SYSTEM, AND METHOD FOR DELIVERY OF A TISSUE FIXATION DEVICE
Systems and methods for fixating a graft in a bone tunnel are provided. In general, the system includes a tissue fixation device having a delivery configuration and a deployed configuration, at least one graft retention loop coupled to the tissue fixation device, and a drill pin having a sidewall surrounding a cavity at a proximal end of the pin and at least one longitudinally oriented opening in the sidewall in communication with the cavity, the cavity being configured to fully seat the tissue fixation device. The drill pin is configured to substantially contain therein the tissue fixation device when in the delivery configuration and to enable deployment of the tissue fixation device through the opening. Drill pins configured to contain a tissue fixation device are also provided.
MEDICAL DEVICE FOR TENSIONING OF LIGAMENTS ADJUSTABLE TO DIFFERENT ANATOMICAL LOCATIONS
The present invention refers to a medical device for tensioning grafts in orthopedic reconstruction of ligaments comprising two subsets: the force applicator subset and the adapter subset. The first subset comprises two identical and symmetrical side arms and uses a helical spring system with a brake to quantify the tensile force. Each side arm comprises a rack (9) linked with a helical compression spring (4), a guiding axle (1), a suture wire securing part (8) and an outer chute (10) in which the rack (9) slides. The adapter subset has a “U” shape and comprises an alignment cone (17) which engages in the graft housing tunnel for controlling the direction of the traction force, and a fixation system composed of an adapter (16), by spikes (19) to be adjustable to the anatomical region and to promote a stable fixation.
TENODESIS IMPLANTS AND TOOLS
Methods and devices are provided for anchoring a ligament or tendon to bone. In one embodiment, a biceps tenodesis system is provided and includes a sheath inserter tool, an expandable sheath configured to couple to the sheath inserter tool, an expander inserter tool, and an expander configured to couple to the expander inserter tool. The sheath inserter tool is configured to advance the expandable sheath, with a tendon disposed therearound, into a bone hole, and the expander inserter tool is configured to advance the expander through an outer shaft of the sheath inserter tool and to drive the expander into the sheath. The expander is configured to be received within a lumen extending at least partially through the expandable sheath to thereby expand the sheath. In this way, the system delivers the tendon or ligament into the bone hole and locks the sheath and tendon within the bone hole.