Abstract: This invention is a patient-specific surgical guide for percutaneous fixation of fractures designed for detection of the point of insertion, direction and angle of metal-ware (wires, screws, plates or nails). The patient-specific surgical guide seated on a bony landmark, the interior surface of the guide matches the surface anatomy of bones and fit in a single secure position for the reduction of bony or joint displacement and to insert wires or metal ware in bone and joints without need for fluoroscopic imaging. The guide comprising of a flying arc (3) with pointed introducers (1, 2) at its ends, detachable rods (27,28) and trajectory sleeves (6, 7, 24). The size and shape of the guide modified according to the nature of the anatomy of the percutaneous of bone and joints in these regions of displaced fractures of clavicle, proximal humerus, distal humerus, proximal radius and ulna, distal radius and ulna, hand bones, clavicle, patella distal fibula, medial malleolus, spine and feet bones.

Abstract: A patient specific guide for hip replacement for patients undergoing hip replacement surgery. The guide works for correction of the acetabulum defects based on a finite element model, which detect the bone quality and guide the surgeons for the optimum screws trajectories. The guide surface reflects the acetabular morphology which provide a correct posting of the cup, especially for the complex case as bone loss, severe fractures and tumors. CT-scan images are used to construct the 3D model of the acetabulum bone, therefore a finite element and virtual surgery planning methods are applied to create the electronic file of the patient specific guide. In final step, the 3D printers are used to produce the patient specific guide.

Abstract: This invention relates to a surgical device for preparing the knee joint of a patient undergoing to partial knee replacement. The device is patient specific and has information about implant size, alignment and bone cut. This device consists of two parts, one is related to femoral template and the other one is related to tibial template. The femoral template positioned to a predefined location on the femur bone based on virtual planning of the surgery on specific software using 3D imaging. The femoral template allows to perform the posterior distal cut, drill and detect the location of the two holes relevant to the distal cut and implant pegs, while the tibial template allows the surgeon to make the tibial horizontal and vertical cuts; beside that, it has double slots which allows the surgeon to make extra bone removal if needed or when deciding to use larger size of polyethylene insert.

Abstract: The surgery of revision knee arthroplasty is complex one for both of one and two stages for constraint and hinged implants. The inventor create a method and device to overcome the difficulties of this surgery as determining the size of the revision prosthesis and position of it on the bone after cut and replacement of the failed primary prosthesis. This method enable the surgeons to overcome the abnormalities, distortions and artifacts on bone surface which resulted from the CT scan due to the primary implant. It enables the surgeons to detect the size and position of the implant, also uses land marks on bone surface to design and product the device which use to perform the bone cutting. The device enables the surgeon to determine and guiding the bone cuts below the cement plane in case of cemented implants. Also guiding to the bone cuts below the implant surface in case of cement-less implants.

Abstract: This invention relates to a method for osteotomy correction and fixation of tumor fracture by placing a patient specific template over the osteotomy or the tumor locations, which produced by a certain preoperative planning and depends on a highlighted land marks on the bone surface. The patient specific template includes a holes and slots for fixation and resection of the bone. The patient specific template guide the surgeon to the boundaries of tumor along the bone. The planning and the design of the patient specific template depend on the tibial mechanical axis.

Abstract: This invention relates to a custom made cutting block for total ankle replacement consisting of two pieces, one for tibia and other for talus. The block can be using in 3 ways as pin locator, cutting block or in coupling with the other conventional instruments. The block provides a unique method for matching with the tibia and talus based on the CT-scan imaging The block allows the surgeons to detect the correct position of the tibia pin guide and talus pin guide in addition with the volume of bone cutting in tibia to perform the total ankle replacement surgery. The block provides the surgeon by the size of implant and optimum length of the screws. The block can coupling with the other conventional tool in easy plugging method with give a wide range of varieties to the surgeon to preform and detect a correct position of the prosthesis in total ankle arthroplasty.

Abstract: This invention relates to Patient-Specific Templates (PST) which have already been used by implant manufacturers and clinically applied by orthopedic surgeons. This work presents an apparatus comprised of a unit acquiring data from the surface of bones and joints, a computerized unit for surgical planning and a desktop 3D printer for manufacturing PST, which are functionally, physically and electrically connected. The apparatus is compact, portable and suitable for hospital-based or clinic-based service. The data-collection unit has electro-magnetic (EM) device, diagnostic ultrasound machine, laser scanner and a receiver for acquisition of external data. It integrates the data from multiple sources and has sensor fusion ability. The surgical planning unit has specific software program capable of merging the collected data through mathematical model of specific parts of bones, joints and a library of implants and prostheses.

Abstract: This invention is a device and a method for preparing a knee joint for a prosthesis in a patient undergoing TKA surgery for any knee implant (prosthesis). The device and the method are used in a universal and an open platform fashion for any currently available knee implant, all patient specific implants and any knee implants that could be produced in future. The device is a patient specific instrument, which is based on a method comprising of image based (CT, MRI or computed X-ray) 3-D preoperative planning to design the templates (PSI) that are used to perform the knee surgery for any knee implant in a universal and open platform fashion.

Abstract: This invention relates to a custom made cutting block for total ankle replacement consisting of two pieces, one for tibia and other for talus. The block can be using in 3 ways as pin locator, cutting block or in coupling with the other conventional instruments. The block provides a unique method for matching with the tibia and talus based on the CT-scan imaging The block allows the surgeons to detect the correct position of the tibia pin guide and talus pin guide in addition with the volume of bone cutting in tibia to perform the total ankle replacement surgery. The block provides the surgeon by the size of implant and optimum length of the screws. The block can coupling with the other conventional tool in easy plugging method with give a wide range of varieties to the surgeon to preform and detect a correct position of the prosthesis in total ankle arthroplasty.

Abstract: This invention relates to a method for osteotomy correction and fixation of tumor fracture by placing a patient specific template over the osteotomy or the tumor locations, which produced by a certain preoperative planning and depends on a highlighted land marks on the bone surface. The patient specific template includes a holes and slots for fixation and resection of the bone. The patient specific template guide the surgeon to the boundaries of tumor along the bone. The planning and the design of the patient specific template depend on the tibial mechanical axis.

Abstract: This invention relates to a patient specific guides for hip replacement for patients who going to hip replacement surgery. The guide works for correction of the acetabulum defects based on a finite element model, which detect the bone quality and guide the surgeons for the optimum screws trajectories. The guides surface reflect the acetabular morphology which provide a correct posting of the cup, especially for the complex case as bone lost, severs fractures and tumors. CT-scan images are using to construct the 3D model of the acetabulum bone, therefore a finite element and virtual surgery planning methods are applied to create the electronic file of the patient specific guide. In finial step the 3D printers are using to produce the patient specific guide.

Abstract: This invention relates to a surgical device for the detection of the pedicle screws trajectories of a patient undergoing to scoliosis or spondylosis correction. The device is a patient specific and has information about screw size and position. The increased use of pedicle screws in scoliosis creates a challenge for accurate and safe placement of screw within the pedicle during the scoliosis surgery. Patient-specific templates (PST), is an alternative method to guide the surgeons for detecting the positions and trajectories of pedicle screws in scoliosis and spondylosis fixation surgery. This 3D model constructed during PST process can be also 3D printed as a physical model, which can help surgeons to develop an accurate and safe position of pedicle screws and its trajectories. This device has the ability to customize the placement and the size of each pedicle screw based on the unique morphology and landmarks of the vertebrae.

Abstract: The surgery of revision knee arthroplasty is complex one for both of one and two stages for constraint and hinged implants. The inventor create a method and device to overcome the difficulties of this surgery as determining the size of the revision prosthesis and position of it on the bone after cut and replacement of the failed primary prosthesis. This method enable the surgeons to overcome the abnormalities, distortions and artifacts on bone surface which resulted from the CT scan due to the primary implant. It enables the surgeons to detect the size and position of the implant, also uses land marks on bone surface to design and product the device which use to perform the bone cutting. The device enables the surgeon to determine and guiding the bone cuts below the cement plane in case of cemented implants. Also guiding to the bone cuts below the implant surface in case of cement-less implants.

Abstract: This invention relates to Patient-Specific Templates (PST) which have already been used by implant manufacturers and clinically applied by orthopedic surgeons. This work presents an apparatus comprised of a unit acquiring data from the surface of bones and joints, a computerized unit for surgical planning and a desktop 3D printer for manufacturing PST, which are functionally, physically and electrically connected. The apparatus is compact, portable and suitable for hospital-based or clinic-based service. The data-collection unit has electro-magnetic (EM) device, diagnostic ultrasound machine, laser scanner and a receiver for acquisition of external data. It integrates the data from multiple sources and has sensor fusion ability. The surgical planning unit has specific software program capable of merging the collected data through mathematical model of specific parts of bones, joints and a library of implants and prostheses.

Abstract: Total knee replacement is the standard treatment for advanced knee osteoarthritis. An improved method of treating an osteochondral defect for knee osteoarthritis of dogs is provided, which is a composite tissue for treating or preventing a disease, disorder, or condition associated with an osteochondral defect with new technique. The new technique of custom made instruments and implants for dog and small animals is applied for different breeds of dogs regardless of their sizes and weights. The tool is a custom made instruments, which is based on capture of image based (CT or computed X-ray) to be transferred to electronic 3D model and apply 3D preoperative planning to design the tools are used to perform the knee surgery.

Abstract: This invention is a device and a method for preparing a knee joint for a prosthesis in a patient undergoing TKA surgery for any knee implant (prosthesis). The device and the method are used in a universal and an open platform fashion for any currently available knee implant, all patient specific implants and any knee implants that could be produced in future. The device is a patient specific instrument, which is based on a method comprising of image based (CT, MRI or computed X-ray) 3-D preoperative planning to design the templates (PSI) that are used to perform the knee surgery for any knee implant in a universal and open platform fashion.