Disclosed is a device and method for repairing a partially or totally ruptured tendon. The device comprises an implant placed inside or outside of the tendon on either side of the rupture in order to strengthen the ruptured area during repair. Once positioned inside the tendon, the tendon is held in place so it can heal either by sewing or stapling through the tendon and implant, or by any other suitable method that utilizes the implant to provide strength to the ruptured area. In this manner the tendon can heal with less chance of rupturing again prior to healing.