46 results about "Total hip replacement surgery" patented technology

A computer assisted surgery system with is enhanced graphics features is described for assisting a surgeon in orthopaedic procedures. A system is described for use in inserting multiple guide pins in hip fracture surgery using a single bore drill guide that has a graphical representation comprising its real trajectory and one or more virtual trajectories, the virtual trajectories representing potential positions of other guide pins to be placed during the procedure. Additionally, representations of inserted guide pins and virtual trajectories may be retained on the display at their inserted positions for use in aligning subsequent guide pins. A system is also described for orientation of an acetabular cup in a total hip replacement surgery. During cup insertion, the surgeon is provided with information regarding the orientation of the cup with respect to a pelvic reference frame that is based on accepted pelvic landmarks. The positions of each landmark is calculated by the system when a probe with a virtual tip, separate from its physical tip, is overlaid on the landmark in roughly orthogonal images of the pelvis.

A computer-guided system for orienting an insert during a surgical procedure, the computer-guided system comprising:a surgical table for supporting a patient, the surgical table being capable of movement about three axes;a table inertial measurement unit for measuring movement of the surgical table;a patient inertial measurement unit for measuring movement of the patient;an insert inertial measurement unit for measuring movement of the insert; andcomputational means for determining the relative positioning of the patient and the insert based upon movement of the surgical table, movement of the patient, and movement of the insert.

The invention provides a fabrication template system for custom individual artificial total hip replacement operation acetabulum. The system comprises an acetabulum positioning guide plate, a depth control drill and a colored depth indication rod. The acetabulum positioning guide plate comprises a fossa ovalis positioning plate, an acetabulum bottom positioning plate and a depth guide cylinder. The fossa ovalis positioning plate is attached to the fossa ovalis according to the fossa ovalis dissection shape. The acetabulum bottom positioning plate is arranged at the outer edge of the fossa ovalis positioning plate and is attached to the acetabulum cartilage face according to the acetabulum dissection shape. The depth guide cylinder is arranged on the acetabulum bottom positioning plate and performs guide and depth limitation on the depth control drill. The depth control drill performs drill on the acetabulum through the depth guide cylinder, a depth limit ring protruding from the drill is arranged on the body portion of the depth control drill, and the depth limit ring is limited at the end of the depth guide cylinder through the depth guide cylinder. The length of the colored depth indication rod is identical to the drill hole depth, and the colored depth indication rod is inserted into the hole to indicate the depth and direction. By means of the template system, the ideal acetabulum prosthesis arranging position can be obtained, and accordingly, the acetabulum prosthesis can be arranged accurately, and the operation effect is improved.

A method for determining the orientation of a first object in space, wherein the first object is interactive with a second object, the method comprising the steps of:using kinematic action to generate a first data set reflective of the current spatial relationship between the first object and the second object; andcomparing the first data set with a database of known data sets reflective of known spatial relationships between the first object and the second object in space so as to identify the current orientation of the first object in space.

The invention relates to a manufacturing method of a personalized acetabular prosthesis and an auxiliary method for total hip replacement, which relate to the technical field of total hip replacement. 3D data, and import the obtained 3D data into the 3D software to reconstruct the patient's acetabular model; process the patient's acetabular model in the 3D software to obtain the milled model of the patient's acetabular; use reverse engineering technology to match the model The prosthesis model, and then use 3D printing technology to print the prosthesis model into a personalized acetabular prosthesis, use the patient's acetabular model to formulate the tool milling trajectory and milling process parameters; before the operation, the tool milling trajectory established in step 4 And process parameters are imported into the manipulator control software, the manipulator is used for the doctor to mill the patient's acetabulum, and the personalized acetabular prosthesis is used for the doctor to install the milled patient's acetabulum. This method can reduce the doctor's surgical burden and improve the milling quality.