11 results about "Glenoid cavity" patented technology

The utility model relates to a PET (Polyethylene Terephthalate) patch for an inner support of a shoulder joint. The PET patch for the inner support of the shoulder joint is formed by weaving PET materials. The shoulder joint inner support PET patch comprises a fixing section and a traction section which are oppositely arranged, the traction section comprises two traction holes which are formed in a spaced mode, and reinforcing wires are woven on the hole edge of each traction hole. The shoulder joint inner support PET patch is formed by weaving PET materials, has the effects of being high in strength and not prone to dissolution, and can stably connect the humerus head and the glenoid cavity. The patch is provided with the traction hole positions at fixed intervals and the open type fixing section positions, so that perforation or threading can be performed on the fixing section according to the specification and the size of a use object to realize unified distribution, and the convenience of an operation is improved. Reinforcing wires are woven on the edges of the traction holes to improve the strength of the traction holes, pull cracks are avoided, and the traction success rate is increased.

The present disclosure provides a shoulder prosthesis. The shoulder prosthesis includes a glenoid component, a humeral component, and an articulation component. The glenoid component includes a glenoid body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a glenoid cavity. The humeral component includes a humeral body having a proximal side and a distal side, the distal side shaped to engage with a resected portion of a humerus. The articulation component is positionable between the proximal side of the glenoid component and the proximal side of the humeral component, the articulation component configured to be maintained between the glenoid and humeral components, after implantation, by at least one of a deltoid muscle and a rotator cuff.

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 oversleeve type rehabilitation shoulder rest comprises a shoulder fixing component and an oversleeve component, the shoulder fixing component comprises a body attached to the shoulder joint on one side of the human body, a belt body extends out of the rear side of the body, and the free end of the belt body is used for bypassing to the front through the armpit on the other side of the human body and is detachably connected with the body; the oversleeve component comprises an oversleeve part used for being arranged on the upper limb in a sleeving mode and a glove part used for being worn on the palm, the lower end of the oversleeve part is connected with the upper end of the glove part, and the upper end of the oversleeve part is detachably connected with the body. According to the utility model, the position of the humerus at the glenoid cavity of the shoulder joint is comprehensively and stably fixed by changing the fixed bearing strength mode of the upper limb, so that the displacement condition of the brace in rehabilitation training and daily life activities is reduced; meanwhile, daily repeated wearing and taking-off are reduced by adopting a comfortable wearing mode; sensory feedback of the upper limbs of the affected side of a stroke patient is enhanced, blood circulation is promoted, and the occurrence rate of shoulder-hand syndromes after stroke is reduced.

A glenoid implant system, for example, includes a glenoid implant and a glenoid cutting guide. The glenoid implant includes a body having a concave surface with a first curved edge portion and a second curved edge portion, and an attachment surface having a concave edge portion joined to the second curved edge portion of the concave surface. The concave surface and the attachment surface are disposed at an angle. The glenoid cutting guide includes a body having a convex surface engageable with a surface of a glenoid cavity and a cutting guide surface for resecting a cutout in a glenoid cavity, the cutout having a curved edge portion corresponding to the second curved edge portion of the glenoid implant.

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 invention discloses a real-time CBCT (Cone Beam Computed Tomography)-guided median relationship determination method, system and equipment and a storage medium. The method comprises the following steps: acquiring three-dimensional data of dental arches of upper and lower jaws and jaw bones through intraoral scanning and CBCT scanning, and fitting to establish a virtual patient model; acquiring a spatial position relationship between the motion acquisition marker and the dentition of the patient; taking dental arch feature points by using a probe point, and establishing a space mapping relation from the motion acquisition marker to a CBCT coordinate system; the position of a marker is tracked in real time through an electronic plane bow system, and the position of a condylar process in a glenoid fossa is dynamically displayed in real time on a CBCT image based on a space mapping relation; a physician preliminarily determines a median relation position candidate in combination with a clinical technique under real-time visual guidance; guiding the patient to perform joint function movement, synchronously monitoring the joint function and masticatory muscle movement, and determining the final median relation position after the temporomandibular joint function health is verified. According to the invention, chair-side real-time visualization and functional verification are realized, and the diagnosis and treatment efficiency of jaw position determination is obviously improved.

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.