169 results about "Bone humerus" patented technology

Surgical systems and instruments for performing shoulder repair procedures using a transhumeral approach are disclosed. The systems include a humeral guide configured to set a path of travel for a guide pin that operates bone preparation instruments with a transhumeral approach. The guide pin can selectively engage one or more bone preparation instruments disposed at a humeral resection surface and operate the tool(s) by powering the guide pin from below the humeral resection surface. A handle assembly can be used to position bone preparation instruments at the surgical site, with the handle assembly being selectively mountable to the humeral guide. The humeral guide can also have a sizer attachment coupled to it to assist in measuring and sizing locations for an implant to be placed on the humeral resection surface. Measuring, reaming, broaching, and implanting actions can all be performed with assistance from the humeral guide.

A method of implanting a shoulder prosthesis assembly is provided where the method includes advancing by rotation a base member, that includes a cylindrical member and a helical structure, into a resection face of a humerus of a patient such that the helical structure is submerged in and engages cancellous bone of and does not extend distally of an epiphysis of the humerus, the cylindrical member being accessible at the resection face of the humerus when the base member is so advanced; advancing a locking device into the base member until at least one elongate member spans a space between adjacent portions of the helical structure to contact the cancellous bone in the space; and inserting a retention portion of a reverse articular insert into the cylindrical member of the base member to directly connect the reverse articular insert with the cylindrical member of the base member.

A humeral implant is provided. The implant includes a humeral stem including a plurality of fins. At least one fin comprises a serrated bottom edge. A radial distance between an inner bottom edge of the at least one fin and a centerline of the humeral implant increases along a distal length of extension of the at least one fin. At least the serrated bottom edge of the at least one fin is configured to cut into and compact bone of the metaphysis of a humerus toward relatively denser cancellous bone of a peripheral portion of the humerus when press-fit therein, thereby providing sufficient press-fitting for cementless fixation of the humeral stem into the humerus. Related kits and methods are also provided.

The invention provides an elbow joint prosthesis installation position evaluation method and device, electronic equipment, a storage medium and a program product, and the method comprises the steps that an elbow joint biomechanical model of an implanted prosthesis is constructed, and the model comprises a skeleton prosthesis model and a muscle model which are coupled, the skeleton prosthesis model comprises a humerus prosthesis equivalent mass block and an ulna prosthesis equivalent mass block; acquiring a plurality of pieces of to-be-evaluated position data of the prosthesis rotation axis, wherein each piece of to-be-evaluated position data is used for representing a to-be-evaluated position of the prosthesis rotation axis between the two prosthesis equivalent mass blocks; for each piece of to-be-evaluated position data, based on a prosthesis rotation axis corresponding to the to-be-evaluated position data, performing motion simulation calculation on the elbow joint biomechanical model implanted with the prosthesis by using a dynamics method to obtain muscle force data of reference muscles in the muscle model; and determining an evaluation result of each piece of to-be-evaluated position data according to the muscle force data corresponding to each piece of to-be-evaluated position data.

The invention relates to the technical field of orthopedic biomedical treatment, in particular to a proximal humerus fracture intramedullary bone cement supporting rod. The bone fracture plate comprises a bone fracture plate body, a plurality of first connecting holes and a plurality of second connecting holes are formed in one side of the bone fracture plate body in a penetrating mode, and solid bone nails are arranged in the first connecting holes. According to the device, bone cement is injected into a marrow cavity from an injection molding channel and an injection molding opening and then solidified into a rod body, the marrow cavity space is tightly filled, supporting structures are synchronously formed on the inner side and the outer side of the humerus through cooperation of a bone fracture plate and a bone cement supporting rod in the marrow cavity space, and therefore stress generated when arms of a patient move is evenly dispersed on the two sides of the humerus; the fixing stability is remarkably improved, the risk of internal fixation failure such as steel plate displacement and screw cutting is effectively reduced, and the bone cement supporting rods can further prevent displacement of fracture blocks, promote fracture repair, relieve extrusion and friction of surrounding tissue of a filling position, reduce inflammatory response and postoperative pain and improve the rehabilitation comfort of a patient.

Devices and methods for performing a humeral cut are disclosed, the humeral cut being performed to prepare a surgical site to receive a prosthesis. In at least some embodiments, a humeral resection guide is provided that includes a plurality of arms that can be selectively coupled and decoupled from each other, thus enabling the arms to be individually delivered to a surgical site and then subsequently coupled together. This type of configuration allows for less trauma to the tissue in and / or surrounding the shoulder joint because the components being delivered to the surgical site are smaller during delivery than when in use. Additional features are provided that help create a preferred fit with respect to the humeral head to set a desired resecting plane, as well as to insure cutting tools do not harm surrounding tissue. Various embodiments of these devices, and methods of using the same, are also disclosed.

Surgical systems and instruments for performing shoulder repair procedures using a transhumeral approach are disclosed. The systems include a humeral guide configured to set a path of travel for a guide pin that operates bone preparation instruments with a transhumeral approach. The guide pin can selectively engage one or more bone preparation instruments disposed at a humeral resection surface and operate the tool(s) by powering the guide pin from below the humeral resection surface. A handle assembly can be used to position bone preparation instruments at the surgical site, with the handle assembly being selectively mountable to the humeral guide. The humeral guide can also have a sizer attachment coupled to it to assist in measuring and sizing locations for an implant to be placed on the humeral resection surface. Measuring, reaming, broaching, and implanting actions can all be performed with assistance from the humeral guide.

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.

Various embodiments disclosed herein relate to stemmed and stemless humeral anchors for use in shoulder arthroplasty procedures. For example, the humeral anchor can include a first end, a second end, and an interior surface extending between the first end and the second end. The interior surface can be disposed about a recess disposed between the first end and the second end. The recess can be configured to secure a coupling of a shoulder articular body directly to the interior surface.

The present application belongs to the field of medical surgical instruments, and provides an elbow joint surgical instrument, which includes a head, fixed wings, and a fixed cage. The head is used to cover the surface of the distal end of the humerus; the fixed wings are connected to the side of the head and are used to connect to the humerus; the fixed cage is connected to the head and forms a bone crushing groove with the head for accommodating the filling bone, and the fixed cage also has a limiting structure for cooperating with the bone tissue of the distal end of the humerus. The elbow joint surgical instrument provided by the present application can greatly reduce the amount of osteotomy, which is conducive to later revision surgery. The filling bone placed in the bone crushing groove is conducive to promoting the patient's postoperative recovery and postoperative weight-bearing. The limiting structure cooperates with the bone tissue in the corresponding area of ​​the distal end of the humerus, which is conducive to strengthening the stability of the elbow joint surgical instrument fixed on the distal end of the humerus.

A stemless prosthetic shoulder joint may include a prosthetic humeral head and a stemless base. The stemless base may include a collar and an anchor extending from the collar intended to anchor the base into the proximal humerus. The base may include a proximal collar having a proximal surface and a bone-engaging surface opposite the proximal surface. The collar may have a superior portion and an inferior portion, the superior portion defining an arc shape and the inferior portion defining a substantially triangular shape.

This application relates to the field of sports medicine, and particularly to a knotless fixation nail for rotator cuff tears, including a humeral screw for being driven into the humerus during surgery; a rotator cuff screw for being fixed at the rotator cuff during surgery; a connecting piece including a humeral screw fixing part, a rotator cuff screw fixing part, and a connecting part, the connecting piece being located between the humeral screw fixing part and the rotator cuff screw fixing part, and the humeral screw fixing part, the rotator cuff screw fixing part, and the connecting part being integrally formed, with a plurality of convex structures provided on the humeral fixing part; a rotator cuff fixing piece provided between the head of the rotator cuff screw and the rotator cuff screw fixing part for assisting in fixing the rotator cuff to prevent tendon slippage. This application has the effect of reducing the recurrence probability of patients.

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.

Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and / or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.

A humeral head assembly is provided that includes an articular body and a coupler. The articular body includes a coupling portion disposed on a side of the articular body opposite an articular surface. The coupling portion includes a continuous zone of eccentricity adjustment. The coupler portion optionally includes one or more than one discrete position site. The coupler includes a first portion and a second portion opposite the first portion. The first portion is configured to mate with the coupling portion and the second portion is configured to mate with another member of a joint prosthesis. A coupling portion with the continuous range of eccentricity adjustment can be provided on a bone anchor and the eccentricity of another component can be selected by motion of a coupler, such as a tray for reverse humeral assemblies, along the coupling portion of the anchor.

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.

Orthopedic implants, surgical tools and surgical methods. More particularly, a system for surgical treatment of the elbow region for various fractures. The implants include an assortment of humerus plates, an olecranon plate system, and an elbow stabilization system. In order to assist in surgery, the system includes guides for the humerus, a coronoid fracture reduction clamp and an olecranon osteotomy clamp. Methods of using the various devices are also disclosed.

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

Provided is an improved humeral head assembly for a shoulder prosthesis.

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 utility model provides an angle measurer for bone group angle lines in different planes, which comprises a measuring main body, a first sucker assembly, a pointer and a second sucker assembly, a positioning center point is arranged on the measuring main body, and a semicircular hollow groove is arranged on the measuring main body by taking the positioning center point as the center. The measuring main body is provided with a first angle scale mark along the semicircular direction of the semicircular hollow groove; the measuring main body is provided with a linear hollow groove along the linear direction of the two end points of the semicircular hollow groove; the first sucker assembly is arranged on the measuring main body; the pointer is pivoted on the front surface of the measuring main body by taking the positioning center point as the center, the pointer is also provided with an indication long groove, and the indication long groove is communicated with the semicircular hollow groove; the second suction cup assembly is movably arranged on the indication long groove and the semicircular hollow groove in a penetrating mode in the direction perpendicular to the measuring body. The angle measuring device can assist a doctor in measuring the measuring angles, such as a thighbone front inclination angle and a humerus back inclination angle, of angle lines needing to be collected in different planes.

The utility model provides a reduction maintaining brace in a child humerus supracondylar fracture operation, and belongs to the technical field of medical instruments. Comprising a damping positioning hinge, an upper arm connecting structure and a front arm connecting structure, the damping positioning hinge comprises a damping positioning rotating shaft, a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm are connected to the two rotating ends of the damping positioning rotating shaft respectively. The upper arm connecting structure comprises an upper arm support and an upper arm fixing belt connected to the upper arm support, the upper arm support is fixedly installed on the first connecting arm, the front arm connecting structure comprises a front arm support and a front arm fixing belt connected to the front arm support, the front arm support is fixedly installed on the second connecting arm, and the front arm fixing belt is fixedly installed on the front arm support. And matched magic tapes are correspondingly arranged on the upper arm fixing band and the front arm fixing band. Adaptive positioning and supporting can be carried out according to the intraoperative requirements and the bending state of the elbow joint of a patient, it is guaranteed that the elbow joint of the patient is always in the extremely-bent position, and the stability of intraoperative and postoperative fracture reduction is improved.

The utility model discloses a humerus handle beneficial to large and small tubercle reconstruction, which comprises a humerus prosthesis handle, a cover plate and a fixing screw, a screw hole is arranged on the humerus prosthesis handle, a joint surface is fixed on the humerus prosthesis handle, the joint surface is matched with a cambered surface joint head, and the cover plate is fixed on the cover plate. The humerus prosthesis handle is mutually fixed with a human body bone block through the cover plate and the fixing screw. According to the humerus handle beneficial to large and small tubercle reconstruction, the overall operation is simple, a doctor does not need to conceal a suture binding mode and a mechanical structure when a patient moves later, compared with a traditional suture binding mode, the risk that bone fragments are separated from the binding position is high, the design has no risk, fixation is firm, the humerus prosthesis handle is made of a titanium alloy material, and the use is convenient. The screw and the cover plate are also made of titanium alloy materials, biocompatibility is guaranteed, meanwhile, strength is achieved, the cover plate and the screw are in spherical connection, the device can better adapt to the shape of a bone block, and the adaptability of the device is improved.