69 results about "Bone humerus" patented technology

The application belongs to the field of medical devices, and particularly relates to a humeral shaft middle-distal fracture anterolateral MIPPO bone plate, which comprises a bone plate main body, a plurality of screw holes one are uniformly arranged on the proximal end to the middle end and the distal end of the bone plate main body, a plurality of screw holes two are arranged on the distal end of the bone plate main body, the diameter of the screw hole one is greater than the diameter of the screw hole two, the screw holes of the proximal end and the distal end of the bone plate are respectively provided with screw holes matched with screws of different diameters, the structure of the bone plate is designed on the basis of CT scanning data of humeral bones of a plurality of patients, and the bone plate is designed according to the structure of the reconstructed three-dimensional model of the humeral bone, so that the bone plate is more in line with the anatomical characteristics of the patient, and the bone plate is more suitable for anterolateral MIPPO surgery in cooperation with a matching device, indirect reduction of a fracture can be realized, the operation is further simplified, the operation time is saved, the amount of bleeding is reduced, and the surgical trauma is reduced.

The utility model discloses a novel bone fracture plate for treating bone nonunion of humerus, which relates to the technical field of bone fracture plates, and comprises an internal connection rotating piece mounted in a bone fracture plate main body, according to the device, the internal connecting rotating piece is installed, the inclined face of the internal connecting rotating piece is matched with the angle adjusting piece with the inclined face, and therefore a doctor only needs to rotate the angle adjusting piece and the internal connecting rotating piece when needing to obliquely install a connecting screw, and the angle adjusting piece rotates around the axis (namely the rotating axis) of a connecting boss; meanwhile, the internal connection rotating part is rotated, so that the inclined plane position of the internal connection rotating part is spatially changed, the angle of the angle adjusting part of the inclined plane can be adjusted, the mounting angle of the connecting screw can be changed to a certain extent, the angle of the connecting screw of the device can be adjusted, and the device can be adjusted according to the age and the body shape of a patient. Therefore, a doctor can select a proper angle to obliquely hit a screw at a proper position to connect the screw.

A shoulder orthosis configured to control a position of the humeral head / arm relative to a shoulder joint by adjusting tension across a joint. The orthosis allows a user to modify a direction and magnitude of force applied while wearing the orthosis. The orthosis may contain cams or extensions to direct and amplify force around the joint towards a specific range of motion. The orthosis can be made from digitally imaging joints and then partially or fully automating the design of orthosis.

Periprosthetic bone fixation plates are disclosed including, for example, periprosthetic proximal femur plate, periprosthetic distal femur plate, periprosthetic humerus plate, periprosthetic ring plate, and periprosthetic troch plate. In use, the periprosthetic bone fixation plates are arranged and configured for use in periprosthetic fractures. That is, the periprosthetic plates include one or more features to facilitate positioning and securement of the bone fixation plate to a patients bone that previously received a surgically implanted orthopedic device or implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic device or implant. In addition, the periprosthetic bone fixation plates are arranged and configured to facilitate plating of a longer working length as compared to existing bone fixation plates (e.g., plating from, for example, femoral condyle to greater trochanter).

The invention provides a fixing steel plate for proximal humerus comminuted fracture, and relates to the technical field of proximal humerus fracture, the fixing steel plate comprises a main steel plate with a connecting hole and a branch steel plate fixed with the main steel plate through the connecting hole; a plurality of extending claws are arranged on the side, away from the main steel plate, of the branch steel plate, and fixing structures are arranged at the ends of the extending claws and can connect bone fragments and make the bone fragments tightly attached to the main bone. The branch steel plates can be strip-shaped or ring-shaped, and the extension claws can be integrally formed or detachably combined. The problems that a traditional steel plate can only be placed on the outer side, and when fractures are smashed, the upper rear large nodule and the inner fracture blocks are difficult to fix and prone to displacement or internal fixation fails are solved, all-directional fixation is achieved, the steel plate is suitable for different fracture scenes, operative wounds are reduced, and shoulder joint function recovery is assisted.

The present invention relates to a mechanical implant for hip and shoulder arthroplasty. The mechanical implant comprises a neck (1) and an end (2), the end (2) which enters into a cavity in the patient's bone and terminates with a movable mechanical part (3) which fits into the metaphysis of the femur or humerus, and the end (2) terminates with two movable parts (4) to fit the end (2) into the neck (1). The two parts of the neck (1) and the movable mechanical part (3) are joined by a screw (5). The present invention enhances stability and facilitates the replacement of the neck (1) in the event of revision.

Disclosed is a prosthetic joint assembly for joining a humerus bone to a scapula bone, comprising a humeral component adapted for engagement with said humerus bone and a concave dish; a scapular component adapted for engagement with said scapula bone and a convex surface adapted to engage said concave dish; wherein when said components are implanted and engaged in a rest position said prosthetic center of rotation is displaced in a direction that is inferior and medial relative to a natural center of rotation and said humerus bone is displaced in a direction that is inferior relative to said natural center of rotation.

The utility model relates to the technical field of locking steel plates for proximal humerus fracture, in particular to a locking steel plate for proximal humerus greater tuberosity rotator cuff stop point fracture, which comprises a locking steel plate body and a top end fixing component used for fixing a small fracture block of a rotator cuff stop point, the top end fixing assembly comprises a positioning plate integrally connected with the top end of the locking steel plate body, a screw hole and a suture hole which are formed in the positioning plate, and a screw which penetrates through the screw hole to fix the positioning plate and a small fracture block at a rotator cuff dead point on a proximal humerus greater tubercle; the top end fixing assembly is arranged on the locking steel plate body, the positioning plate extends in the direction away from the top end of the locking steel plate body and covers a rotator cuff stop point, and the positioning plate and the top end of the locking steel plate body form an attaching face attached to the proximal humerus greater tubercle. And the firm fixation of the rotator cuff dead point bone block is realized.

The present invention relates to a system and a method for bone fracture risk assessment and provides for a system to predict Osteoporosis and Osteopenia and its associated fracture risk automatically from conventional chest X-ray image. The invention provides an automated digital X-ray bilateral Clavicle Radiogrammetry and its estimation of Cortical Thickness and Calculation of Cortical bone mass indices of Clavicle to predict dual Hips (Neck) Bone Mineral Density (BMD), dual Hips (Total) Bone Mineral Density (BMD) and Spine (Total) Bone Mineral Density (BMD) as measured by dual energy X-ray absorptiometry (DXA) bone densitometer and 10-year probability of both Major Bones (hip, spine, humerus or forearm)—and Hip-Osteoporotic Fracture Risk Scores. Using the same chest X-ray, an automated prediction of Osteoporosis and Osteopenia at both dual hips and spine regions and 10-year probability of both Major Bones and Hip Osteoporotic Fracture Risk using Artificial Intelligence (AI).

Systems and methods for opposing abnormal motion of an adjacent bone are provided. One exemplary embodiment of a surgical method includes delivering and securing a bone barrier to a bone bed of a glenoid such that at least a portion of the bone barrier extends laterally beyond the bone bed and can oppose, prevent, and / or reduce abnormal motion of an adjacent bone (e.g., a humeral head). The bone barrier can be secured along a periphery of a glenoid of a shoulder. More particularly, the bone barrier can be placed and secured such that at least a portion of the bone barrier extends laterally over the glenoid and can oppose abnormal motion of the humeral head. In some embodiments at least one suture anchor and suture can secure the bone barrier to the bone bed.

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.

A humeral anchor for a shoulder prosthesis is disclosed. The humeral anchor includes a distal portion configured to be anchored in a proximal region of a humerus and a proximal portion, the proximal portion including a proximal face, where the proximal face includes an engagement feature configured to directly couple to a reverse shoulder insert having a concave proximal portion, and wherein the proximal face is further configured to directly couple with an anatomical shoulder insert having a convex proximal portion.

The invention relates to a humeral anchoring element (2) of a humeral joint component (4, 4') of a shoulder prosthesis, the humeral anchoring element (2) being characterized in that it comprises: - a main body (8) for insertion into a humerus (16) from a resected metaphyseal surface (10), and - a proximal flange (12) forming a proximal end of the humeral anchoring element (2) and positioned at one end of the main body (8), a proximal face (14) of the proximal flange (12) extending into the humerus (16) and below the resected metaphyseal surface (10). Figure for the abstract: Figure 1

This invention provides a humeral support device, relating to the field of medical devices. The support device includes a first support portion, a second support portion, and a connecting portion, with the first and second support portions fixedly connected via the connecting portion. The first support portion has multiple first through holes, and the second support portion has multiple second through holes. A first fastener secures the first support portion to the lesser tubercle of the humerus through the first through holes, and a second fastener secures the second support portion to the anteromedial aspect of the humerus through the second through holes. The implantation direction of the first and / or second fasteners intersects the plane of motion of the humerus rotating about the sagittal axis relative to the shoulder joint. By limiting the implantation direction of the fasteners to intersect with the direction of the rotator cuff traction force, it can directly support the medial aspect of the humerus and effectively resist the humeral inversion force caused by the rotator cuff, reducing the risk of secondary humeral displacement caused by rotator cuff traction and improving postoperative stability.

The invention relates to a connecting sleeve for anchoring shafts of two oppositely arranged prostheses, preferably on an elongate bone such as a femur or humerus. The reinforcing sleeve comprises two receiving bushes for one prosthesis shaft each and comprises a separable coupling region arranged therebetween for connection in such a manner as to resist shear forces and rotation. According to the invention, each receiving bush has, on the side thereof facing the coupling region, one fork of a pair of forks that interact with each other, and a fitting block is arranged on a base of the fork, the lateral surfaces of which fitting block have a distance that corresponds to an inner width of the fork, and the lateral surfaces are designed to contact flanks of the fork in a planar manner, at least one fastening screw being arranged transversely through the fork. The fork connection is simpler to produce than the known wedge connection and yet is sufficiently robust. Unlike in the case of the wedge connection, an exact fit is not required; a clearance fit between the fork and the fitting block is sufficient in principle, excessive play being eliminated by means of the fastening screw.

This invention discloses a customized rectangular 3D-printed guide for the greater tuberosity of the humerus and its design method. The method includes: supplementing the original trapezoidal anatomical shape of the greater tuberosity of the humerus into a rectangle; calculating and finding the optimal needle insertion point; and using large-scale data analysis of dried humeral specimens to find a universal rectangular shape. Using thin-slice CT scans of the patient, reconstruction is performed using Mimics software, and further smoothing and guide design are achieved using Geomagic software. Finally, an anatomical standard parallel screw fixation guide that also facilitates reduction is designed. This invention uses the rectangular principle to more accurately locate the needle insertion point for cannulated screw fixation in split fractures; the precise design of the 3D-printed guide provides a foundation for the subsequent clinical development of related instruments and theoretical systems and their further clinical application; it improves the cure rate of this disease, reduces complications, further alleviates patient suffering, and improves patients' quality of life.

The invention relates to the technical field of teaching instruments, and provides a joint training model to solve the problem that the palpation training effect of trainees is poor due to the fact that a current joint model cannot simulate the real pathological hand feeling. The device comprises a simulated humerus, a simulated ulna and radius and a simulated muscle connecting the simulated humerus and the simulated ulna and radius. One end of the simulated ulna and radius is provided with a glenoid fossa, and the glenoid fossa comprises a mounting seat connected with the end part of the simulated ulna and radius, a rough surface fossa layer arranged at one side of the mounting seat, a sliding rod arranged at one side of the rough surface fossa layer, a compression spring sleeving the sliding rod, and a sliding surface fossa layer arranged at one end of the sliding rod; one end of the simulated humerus is provided with a humerus head, the surface of the humerus head is a spherical surface, and the humerus head is coated with a joint capsule; through the adjustable joint fossa structure and the inflatable joint capsule, pathological signs of friction feeling of cartilage abrasion and stiffness feeling of joint capsule contracture are simulated respectively, and quantifiable and repeatable palpation training conditions are provided for students.

Surgical constructs methods of tissue fixation are disclosed. A textured structure on a bone surface provides increased friction and increased surface area for soft tissue coming down on it.

The present application provides a new and innovative device for aiding in screw installation through a distal end of a nail installed in a patient's bone (e.g., humerus). The nail's distal end is disposed away from an insertion point of the nail into the bone. The targeting device includes a targeting body having an outer frame, a flexible member connected to the outer frame, a targeting block having multiple holes and connected to the flexible member such that the flexibility of the flexible member enables the targeting block to translate towards sides of the outer frame, and an adjustment assembly that adjusts and maintains the targeting block's position relative to the sides of the outer frame. The targeting device further includes a base plate removably coupled to the targeting body. The targeting device may be coupled to the nail at the base plate.

The invention relates to a preparation method of a medical auxiliary tool, in particular to a preparation method of a shoulder joint antibiotic spacer. The method comprises the following steps: A, inputting CT scanning data of an uninjured side into 3D software to obtain a full-length 3D model of the humerus of the uninjured side, and making a full-length 3D model of the normal humerus of the affected side through a mirror image on the model of the uninjured side to obtain a correction model; b, confirming a shoulder joint antibiotic spacer model through the correction model data; C, manufacturing a shoulder joint antibiotic spacer mold and printing the shoulder joint antibiotic spacer mold through a 3D printer; and D, the upper mold cavity and the lower mold cavity of the shoulder joint antibiotic spacer mold are filled with bone cement, then mold closing is conducted till the bone cement is completely solidified, and the shoulder joint antibiotic spacer is obtained. The obtained shoulder joint antibiotic spacer is more attractive and accurate, so that soft tissue tension is better maintained, the shoulder joint antibiotic spacer adapts to the length of an upper arm, the shoulder joint antibiotic spacer is matched and contacted with a defective bone structure after infection excision, and better stability is provided for a structure needing to be repaired after interval humerus osteotomy.

A broach for preparing bone for receiving an anchor for a prosthesis comprises a body comprising a superior surface and a socket extending into the superior surface, and an anchoring component extending from the body comprising a spoke extending laterally from the body and a spoke tip extending proximally from the spoke above the superior surface. A system can comprise a distal broach component comprising a broach body, a socket extending into a superior surface of the broach body, and a plurality of cutting spokes extending radially from the broach body, each of the plurality of cutting spokes separated by an interval pattern, and a proximal broach component comprising a spacer body configured to attach to the superior surface of the broach body, and a plurality of spacer spokes extending radially from the spacer body, each of the plurality of spacer spokes separated by the interval pattern.

Robotic systems and methods for robotic arthroplasty. The robotic system includes a machining station and a guidance station. The guidance station tracks movement of various objects in the operating room, such as a surgical tool, a humerus of a patient, and a scapula of the patient. The guidance station tracks these objects for purposes of controlling movement of the surgical tool relative to virtual cutting boundaries or other virtual objects associated with the humerus and scapula to facilitate preparation of bone to receive a shoulder implant system. The virtual objects are located based on density data of the bone such that, when one or more shoulder implants are fully seated in the bone, distal portions of the implants are located in a first region of the bone having a density characteristic greater than an adjacent second region of the bone.

The present invention relates to a positioning device (100) for implantation of prosthesis in a long bone, in particular for implantation of humeral prosthesis, comprising: at least one centering element (101) with a channel (102) configured to house an intramedullary nail (11); a support element (103) configured to hold a reference mask (200) on a plane (12) at a resected metaphysis of the long bone; an adjustment element (104) configured to connect the centering element (101) and the support element (103), wherein the adjustment element (104) further comprises a displacement device (105) configured to provide a controlled offset to the support element (103) for displacing the reference mask (200) over the plane (12) of the resected metaphysis.

Procedures for performing shoulder arthroplasties are disclosed, such procedures including performing various preparation steps for the humerus and glenoid to receive implants, and proceeding through placement of implants and / or prostheses at the surgical site. The techniques disclosed afford the benefit of being tissue sparing, and thus minimize damage or trauma to tissue at the surgical site, including allowing the subscapularis tendon to remain intact throughout the procedures. Various devices that enable the procedures are disclosed, including but not limited to humeral resection guides, glenoid guides, humeral guides, and handle assemblies, among other tools, components, and the like that can be used with such devices. In at least some embodiments, preparation steps include resecting a humeral head, and reaming and broaching the resulting humeral resection surface to receive an implant, and then a prosthesis, as well as reaming a glenoid so it can also receive an implant.

Prosthetic component provided with a stem, adapted to be implanted in use at a bone of a patient, such as for example a tibial and / or femoral component of a knee prosthesis or a femoral component of a hip prosthesis or a humeral component of a shoulder prosthesis, or a component of an elbow prosthesis, including a device adapted to externally cover and / or to house at its interior at least the stem of the prosthetic component, wherein the device is in use placed between the prosthetic component and the bone of the patient, suitable to stably constrain in use the prosthetic component to the bone of the patient and to prevent the direct contact between prosthetic component and bone of the patient.

A trial humeral prosthesis may include a trial stem for implantation into a humerus, and a trial proximal body configured to couple to a trial articulating component. A plurality of trial spacers may be configured to couple the trial stem to the trial proximal body, the plurality of trial spacers including a first trial spacer and a second trial spacer. The first and second trial spacers may each include a proximal post and a tab extending radially outward from the proximal post, and a distal body having a larger outer diameter than an outer diameter of the proximal post, a slot being formed in the distal body. The slot of the distal body of the first trial spacer may be configured to receive the tab of the second trial spacer when the proximal post of the second trial spacer is received within the distal body of the first trial spacer.

The invention relates to an osteosynthesis plate (P) designed for attachment to the proximal humerus (H) for fixing bone fragments and comprising an elongated base body (G) with a top surface (G1) and an opposing bottom surface (G2). The base body (G) has two fastening sections (BA1, BA2) arranged longitudinally at the respective ends (E1, E2) of the base body (G), each of which is equipped with at least one through-hole (A1, A2, A3, A4), wherein the through-holes (A1, A2, A3, A4) are each provided for receiving one screw (SK). The osteosynthesis plate (P) is designed for anterior fixation to the proximal humerus (H), wherein the base body (G) is provided on the underside (G2) in the longitudinal direction between the fixation sections (BA1, BA2) with a recess (AS) which completely penetrates the base body (G) transversely.The invention further relates to an osteosynthesis set (O) with such an osteosynthesis plate (P).

The utility model discloses a nail plate system for fixing pathological fracture of the proximal humerus of a child, and particularly relates to the technical field of medical instruments. The nail plate system for fixing the pathological fracture of the proximal humerus of the child comprises a steel plate, a plurality of screws are installed on the steel plate, the screws are screwed into the humerus to effectively fix the steel plate to the surface of the humerus, the screws are perpendicular to the steel plate, the diameter of each screw is 3 mm, and the diameter of each screw is 3 mm. In this way, it can be guaranteed that the screw can be screwed into a small amount of sclerotin above a focus, and if a traditional humerus near-end steel plate is adopted, the screw is obliquely screwed into the humerus to damage epiphysis. The nail plate system for fixing the pathological fracture of the proximal humerus of the child can effectively fix the pathological fracture of the proximal humerus of the child, and is beneficial to early recovery of functional exercise of a child patient.

The application discloses an automatic elbow extension and flexion teaching device based on bone joint and muscle simulation, and relates to the technical field of elbow extension and flexion teaching.The device comprises a skeleton simulation part, a muscle simulation part, a base, a support rod, a top plate, a fixing mechanism, a driving mechanism, an electronic universal watch and a processing module.The skeleton simulation part, the muscle simulation part, the fixing mechanism and the driving mechanism are all assembled on the support frame formed by the support rod and the top plate.In the application, the flexible support frame is integrally designed with the humerus simulation part and the ulna and radius simulation part, and the movable elbow joint is formed by the fish line penetrating through the through hole, so that the human elbow joint anatomical structure and the 0-150-degree physiological activity range are accurately restored.The muscle simulation part is filled according to the human muscle shape, and is accurately attached to the first magic tape and the second magic tape, so that the muscle and the skeleton are quickly assembled, and the user can directly observe the linkage relationship between the skeleton and the muscle.

An implant for attachment to a humerus and configured to retain a space between the humerus and an acromion is provided. The implant comprises a body having an ovoid articular surface configured to engage the acromion and an undersurface configured to attach to a superior aspect of the humerus at a lateral portion thereof. The implant is dimensioned to maintain the humeral head in a depressed position relative to the acromion, simulating the thickness of a previously existing rotator cuff, and may include fixation members and bone growth-promoting coatings. In one aspect, the implant includes at least one attachment point, the attachment point configured to receive a suture. In such an aspect, the implant may further include a cutout disposed underneath the attachment point. A method of repairing a shoulder using the implant described above is also provided. The method may be implemented to repair a damaged rotator cuff.