Sharif Digital Repository

Knew is the biggest and most complicated joint in the body.Morever knew creat mobility must bear the weight of body and have a stability during static and dynamic activities.Knew is exposed different forces that force to around ligaments and soft fibers.After knew injuries, administration of aid is the important part of rehabilitation program.Rehabilitation robots with ability of accuracy and repetitive practices are good method for reducing time and energy of physiotherapist.At this thesis a 3 DOF Cartesian robot is designed and constructed for rehabilitation of knew that can do every practices for rehabilitation.Steps of designing and constructing of robot are based on movments of knew... 

Nowadays nearly 1% of the world population depends on wheelchairs for walking and movement. Due to harmful changes in human lifestyle, different diseases like stroke and problems in musculoskeletal system are increasing noticeably. Despite the fact that wheelchairs have recently been improved they have faced big problems like forcing people not to move and just sit for a long period of time. Wearable robots not only help these patients to rehabilitate their disabled organ and walk, but also have a significant mental effect on them.
The analysis of an exoskeletal orthosis designed for patients who have pain in one of their knees is presented. A mechanism for knee exoskeleton is analyzed... 

Bashti Bone Plug Technique (BBPT) is an implant-less method which can be used in an Anterior Cruciate Ligament (ACL) reconstructive surgery. The technique uses a core bone plug to fix the tendon graft into the bone tunnel. This study investigates the effect of the core bone density on fixation strength in BBPT method. A series of experimental test has been performed to examine the hypothesis of the study. Thirty fresh bovine digital extensor tendon used in three different groups. Sawbones blocks with densities of 160, 240 and 320 kg/m^3 used in substitute of the bone to model the effect of density on the strength of the fixation. The core bone plugs and tunnels created using a custom made... 

Bashti Bone Plug Technique (BBPT) is a novel implant-less surgical methodology for Anterior Cruciate Ligament (ACL) reconstruction. The technique uses the core bone plug belonging to the patient, cut during tunneling with hole saw drill bit, to fix the ends of the tendon graft. Results show that when fitting the bone plug in this method, a large strike is required for fixation which leads to breaking the bone plug and consequently reducing the effective length of the bone plug inside the tunnel during fixation. Therefore, it was decided to use the sheath which covers the bone plug to overcome said challenges since during fixation with the sheath, Due to the low friction coefficient in these... 

Every year a significant number of people in the world suffer knee injuries due to sport activities and accidents. Ligament tearing accounts for majority of knee injury cases. Clinical tests for diagnosing ligament injuries, give us just qualitative results. Modern pieces of equipment quickly and precisely give us the status of ligaments. In this project, we attempt to design and manufacture a clinical equipment that could log ligament’s stiffness during the arthroscopy; such that this information could be screened throughout the test  

Every year, a significant number of people around the world suffer from anterior cruciate ligament injury. Rapid and low-cost diagnosis of anterior cruciate ligament injury is important to prevent further complications as well as timely treatment. Due to the disadvantages of each diagnostic methods, the development of alternative methods for diagnosing anterior cruciate ligament injury is still of interest to researchers. Meanwhile, several studies have shown that the kinematics of the knee joint are different for injured and healthy anterior cruciate ligament. Due to the capability of inertial sensors for kinematic measurement of joints, their use to diagnose damaged anterior cruciate...