SYSTEM AND METHOD FOR REPAIRING SOFT TISSUE TEARS
A system and method for repairing soft tissue tears such as meniscal tears. The anchor system has a first implant connected to a length of suture. The length of suture is folded such that a tensioning limb extends from the first implant and a locking limb extends from the first implant. The anchor system also includes a second implant fixed to the locking limb and an adjustment mechanism in the length of suture between the first implant and the second implant. The tensioning limb is passed through the adjustment mechanism. This creates an adjustment loop in the length of suture extending from the adjustment mechanism through the first implant. The adjustment loop is a one-way adjustable loop for moving the first implant and second implant in relative position to each other.
1 . An anchor system, comprising:
a first implant connected to a length of suture, the length of suture folded such that a tensioning limb extends from the first implant and a locking limb extends from the first implant;
a second implant fixed to the locking limb;
an adjustment mechanism in the length of suture between the first implant and the second implant; and
wherein the tensioning limb is passed through the adjustment mechanism.
2 . The system of claim 1 , further comprising an adjustment loop in the length of suture extending from the adjustment mechanism through the first implant.
3 . The system of claim 1 , wherein the adjustment mechanism is an eye splice.
4 . The system of claim 2 , wherein the eye splice is in the locking limb.
5 . The system of claim 1 , wherein the second implant is fixed to the locking limb via a pierce hitch in the locking limb.
6 . The system of claim 5 , wherein the pierce hitch is formed by inserting an end of the locking limb through a hole in the locking limb. The system of claim 1 , wherein the first implant and the second implants are rectangular.
8 . The system of claim 1 , further comprising a pair of spaced, adjacent apertures in each of the first and second implants.
9 . The system of claim 8 , further comprising a radiused saddle between each aperture of the pair of spaced, adjacent apertures.
10 . The system of claim 8 , wherein the length of suture extends through the pair of spaced, adjacent apertures in each of the first and second implants.
11 . A delivery device, comprising:
an elongated body with a needle extending distally therefrom;
a pusher assembly within the elongated body, the pusher assembly comprising a cannulated pusher rod extending distally from a pusher body and an actuator extending from the pusher body through the elongated body;
wherein the cannulated pusher rod is slidable within the needle;
a locking mechanism on the elongated body, the locking mechanism movable between a locked position and unlocked position; and
wherein the actuator is moveable from a first configuration to a second configuration when the locking mechanism is in the locked position and the actuator is moveable from the second configuration to a third configuration when the locking mechanism is in the unlocked position.
12 . The device of claim 11 , further comprising a relieved area between a distal end of the pusher rod and the pusher body.
13 . The device of claim 12 , further comprising a slit extending from the relieved area into the pusher rod.
14 . The device of claim 11 , further comprising a pinch point between the cannulated pusher rod and a lumen of the needle.
15 . The device of claim 11 , wherein the actuator is a thumb slide.
16 . A method for meniscal repair, comprising:
providing a delivery device an elongated body with a needle extending distally therefrom, a pusher assembly within the elongated body, the pusher assembly comprising a cannulated pusher rod extending distally from a pusher body and an actuator extending from the pusher body through the elongated body, wherein the cannulated pusher rod is slidable within the needle, and a locking mechanism on the elongated body, the locking mechanism movable between a locked position and unlocked position;
providing an anchor system having a first implant connected to a length of suture, the length of suture folded such that a tensioning limb extends from the first implant and a locking limb extends from the first implant, a second implant fixed to the locking limb, and an adjustment mechanism in the length of suture between the first implant and the second implant, wherein the tensioning limb is passed through the adjustment mechanism;
positioning the needle at a first piercing location on a first side of a tissue;
piercing the needle through the first piercing location to a second side of the tissue;
moving the actuator distally, deploying the first implant from the delivery device;
removing the needle from the first piercing location on the first side of the tissue;
positioning the needle at a second piercing location on a second side of the tissue;
piercing the needle through the first piercing location to a second side of the tissue;
moving the locking mechanism from the locked position to the unlocked position;
moving the actuator farther distally, deploying the second implant from the delivery device.
17 . The method of claim 16 , further comprising the step of pulling the tensioning limb.
18 . The method of claim 17 , wherein the step of pulling the tensioning limb, pulls the first and second implants toward the second side of the tissue
19 . The method of claim 17 , further comprising the step positioning the tensioning limb between the cannulated pusher rod and the needle.
20 . The method of claim 19 , further comprising the step of moving the actuator proximally, severing the tensioning limb between the cannulated pusher rod and the needle.