6 results about "Glenoid cavity" patented technology

The invention relates to the technical field of minimally invasive surgery, in particular to a mandible condylar fracture bionic simulation trainer and a use method thereof. According to the technical scheme, the device comprises a profiling upper jaw part, a bionic lower jaw part, a left glenoid fossa, a skin, a right glenoid fossa, a bionic left profiling tissue and a bionic right profiling tissue. The right joint fossa is fixed in the fixing hole in the rightmost end, when the center locking piece is loosened, the center locking piece can slide in the corrugated hole, when the center locking piece is locked, the center locking piece is fixed in the corrugated hole, and the telescopic support assembly is fixed to the first main framework through the center locking piece. And meanwhile, the bionic lower jaw part, the bionic left profiling tissue and the bionic right profiling tissue are matched, so that the simulation accuracy is improved, detailed data are given to medical staff, and the occurrence of later-stage operation problems is reduced.

The utility model relates to a glenoid cavity navigator for reverse type full shoulder joint replacement. The glenoid cavity navigator comprises a main shaft, a handle, a front locking nut, a rear locking nut and five positioning supports. Scales on the surface of the spindle are used for adjusting the position of the positioning bracket; a Kirschner wire is inserted into the central duct to position the prosthesis; the handle accords with ergonomics and is antiskid, and is detachably connected with one end of the main shaft through a rear locking nut; the positioning supports are different in model and accord with the glenoid cavity anatomical structure, the ends of the positioning supports are arranged between the handle and the main shaft and are screwed and locked through rotation of the front locking nut, and marks are arranged on the surfaces of the positioning supports. Compared with the prior art, the navigator adjusts the scales of the positioning support according to the plan before the operation, is fixed to the glenoid cavity during the operation, guides the follow-up operation, ensures that the implant angle of the prosthesis is consistent with the plan before the operation, effectively solves the problem that the implant angle of the glenoid cavity prosthesis is accurately controlled, reduces the risk of complications, and improves the success rate and efficiency of the operation; the postoperative shoulder function recovery of the patient is ensured.

The invention concerns a system for assisting a surgeon for performing shoulder arthroplasty in a surgical field comprising a glenoid cavity of a patient's shoulder, the system comprising: - at least one extension pole intended to be attached to an instrument, the extension pole being configured to be non-magnetic-field-disturbing by material and / or by design; - an EM localization system comprising - an EM transmitter; - an EM instrument receiver attached to the extension pole, the extension pole permitting to keep the EM instrument receiver away from the instrument to which it is attached; - an EM bone receiver intended to be located near the glenoid cavity, preferably rigidly attached to a scapula of the patient's shoulder; - a retractor assembly adapted for retracting tissues around the glenoid cavity, the retractor assembly comprising at least one retractor configured to be non-magnetic- field-disturbing by material and / or by design, the EM transmitter being attached to said retractor configured to be non-magnetic-field-disturbing by material and / or by design, the EM transmitter, the EM instrument receiver and the EM bone receiver being configured for operating together by being arranged relative to each other within a functional area preliminary defined by a range of the EM transmitter, the extension pole being configured not to interfere with a-magnetic-field in the functional area.

The application discloses a kind of real-time CBCT guided centric relation determination method, system, equipment and storage medium. Upper and lower jaw dental arch and jaw three-dimensional data are obtained by intraoral scanning and CBCT scanning, and a virtual patient model is fitted and established;Obtain the spatial position relationship between motion acquisition marker and patient dentition;Use probe to pick up dental arch feature points, establish the spatial mapping relationship from motion acquisition marker to CBCT coordinate system;Real-time tracking of marker position is realized through electronic facebow system, and the position of condyle in glenoid cavity is dynamically displayed in real time on CBCT image based on spatial mapping relationship;Under the guidance of real-time visualization, the clinician preliminarily determines the centric relation position candidate in combination with clinical method;Guide the patient to carry out joint function movement, and monitor the joint function and masticatory muscle activity synchronously, and determine the final centric relation position after verifying the health of temporomandibular joint function.The application realizes chair-side real-time visualization and function verification, and significantly improves the diagnosis and treatment efficiency of jaw position determination.

A method for implanting a shoulder prosthesis includes distracting a gleno-humeral joint, inserting into the distracted joint a hollow main body having a substantially cylindrical or truncated-cone shape, laterally accessing inside the hollow main body through a second opening defined by at least one lateral element, and performing at least one of bone machining of the glenoid cavity and implantation of one or more glenoid prosthesis components through the first opening while the main body maintains the joint distracted. The main body includes a first end configured to abut a humeral portion, and a substantially annular second end configured to abut a glenoidal portion. The substantially annular second end defines a first opening sized to surround a glenoid cavity. The at least one lateral element maintains a three-dimensional spaced structure between the first and second ends.