450results about "Shoulder joints" patented technology

A trial neck piece for a joint endoprosthesis is designed for temporary arrangement on a separate shaft body (60) that is insertable into a tubular bone (9). It comprises a fastening region (12) which can be plugged temporarily onto a head part (61) of the shaft body (60) by means of a plug connection (l l), and a neck region (IO) for receiving a joint element (19) of the joint endoprosthesis. The trial neck piece (I) is designed as a separate, plug-on attachment piece which, with its fastening region (12), can be plugged with form-fit engagement onto the head part (61) and locked. A latching device (2) is provided which comprises a plurality of latching stages for different height stages of the trial neck piece (I). The invention thus makes available an easily attachable trial neck piece which can be arranged in a defined manner in different height positions in order, on the one hand, to obtain a secure and defined arrangement and, on the other hand, to permit the setting of different heights. The invention further relates to an arrangement with a trial neck piece and with an excavating tool, in particular a reamer, and to an instrument set comprising a trial neck piece and an insertion instrument.

The present disclosure provides alert implants that comprise a medical device and an implantable reporting processor (IRP), where one example of such a medical device includes a component for a total knee arthroplasty (TKA) such as a tibial extension, a femoral component for hip replacements, a breast implant, a distal rod for arm or leg breakage repair, a scoliosis rod, a dynamic hip screw, a spinal interbody spacer, and tooling and methods that may be used to form the alert implant, and uses of such alert implants in the health maintenance of patients who receive the implant.

Disclosed herein is a system and method for performing pre-operative planning of total joint arthroplasty. The planning tool builds a model and analyzes and visualizes movement of the joint for various selections of implant models and placement of the components on the implants on the patient's anatomy. The tool also analyzes and visualizes motions of the joint during common activities of daily living and analyzes and functional ranges. The tool provides real time clinically relevant parameters to inform pre-surgery planning. The tool provides screw orientation visualization.

Described here are self-contained surgical navigation systems which include a head-worn display device to be worn by a user during surgery. The system includes a display generator for generating a visual display on the display device, and a sensor suite having at least one tracking camera. The system further includes a support module including: a user-replaceable, modular battery that is removably insertable into a housing of the support module, and a processor unit configured to receive data from the sensor suite and calculate a position and an orientation of at least one marker. The support module is electrically coupled to the head-worn display device to provide power and data to the head-worn display device. The display device and the support module together comprise the entire sensing and computing capability of the system, without requiring external sensors, cameras, computers, or other electrical equipment.

A system for sizing the resected surface to provide metaphyseal referencing and to properly guide a tool into a central portion of the canal in the diaphysis. The system can include a sizing feature to approximate the size of the metaphysis. The system can also include a base configured to contact the metaphysis and a guide feature configured to guide a tool along a central portion of the canal in the diaphysis.

A prosthesis or implant device for use in joint or bone repair, or restoration of function. The prosthesis or implant device comprises a stem, in which a portion of the stem comprises non-overlapping lamellas around part or all of the circumference of the stem. Each lamella is connected to the external surface of the stem via a bending joint, which permits the space between the rest of the inner surface of the lamella and the external surface of the stem to decrease upon application of a force to the outer surface of the lamella. In addition, methods of treating a subject in need of joint replacement or bone repair using the prosthesis or implant device.

A bone reamer includes a shaft having a first and a second end. The second end is configured to connect to a rotating power source. A head of the reamer includes a rear face connected to the first end of the shaft, a cutting face on an opposing side of the head relative to the rear face, and a perimeter portion having an inner perimeter diameter and an outer perimeter diameter. The outer perimeter diameter defines outer boundaries of the rear face and the cutting face. A blade member of the reamer is disposed upon the cutting face and extends at least across the inner perimeter diameter of the perimeter portion. A center drill bit is disposed on the cutting face. The drill bit and cutting blade are concentric about a center axis of the reamer.

A three-dimensional (“3D”) printed orthopedic fixation implant can reduce stress shielding and / or enhance osseointegration. The implant can include: a head defining a proximal end of the implant; a tip defining a distal end of the implant; a core extending from the head to the tip, the core being elongate; and threads extending along at least a portion of the core. One or more functionally graded lattice structures can be propagated longitudinally and / or radially in at least portions of the core. A density of the one or more functionally graded lattice structures can have a varying longitudinal gradient and a varying radial gradient.

An implant configured to be implanted into a human body including a stem (102) having an elongated body (114) with a distal portion (110). The stem includes a cavity (116) extending through the distal portion and into the elongated body. The stem also includes an attachment mechanism (128) on the opposing end (112) of the stem from the cavity. The attachment mechanism is configured to receive a second implant component (106).

Implant delivery systems are disclosed. One implant delivery system includes an outer shaft, an inner shaft movable within the outer shaft, a yoke coupled to the distal end of the inner shaft, and an implant retainer pivotably coupled to the yoke. The implant retainer is configured to retain a sheet-like implant for implantation at a treatment site. Another implant delivery system includes a handle, a delivery sheath extending from the handle, and a delivery shaft extending through the delivery sheath to a frame attachable to a sheet-like implant. A tether extends from the frame within the lumen of the delivery shaft. An actuation member is translatable within a channel of the handle to deploy the frame from the delivery sheath. A tether clamp, positioned within the handle, is manipulatable by the actuation member to selectively unlock the tether within the handle.

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 present application relates to a device for defining a bone cavity. The device includes a connection member, a reamer, and a guide member. The connecting member includes at least one rotatable connecting mechanism for connecting the guide member and the reamer. The reamer and the guiding component are connected to the two opposite ends of the connecting component respectively. The reamer is arranged to rotate about a pivot of the guide member. The guide member serves as a pivot point. The guide member includes a head and a tail. The tail portion of the guide member is connected to an implant.

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.

Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the femorotibial joint, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint.

This invention relates to apparatus and methods for reverse shoulder prostheses and / or anatomical shoulder prostheses. [Solution] Various embodiments disclosed herein relate to stemmed and stemless humeral anchors 203 for use in the procedure of shoulder arthroplasty. For example, a humeral anchor may include a first end, a second end, and an inner surface extending between the first and second ends. The inner surface may be positioned around a recess 231 located between the first and second ends. The recess may be configured to directly fix the joint portion of the shoulder joint to the inner surface.

A bone insert includes a cap having a convex top surface, an elongated stem, and a barrier between the cap and the stem. The stem of the bone insert is inserted into a hole formed in a host bone until the barrier is pressed against the exposed bone. The bone implant can be placed against a small focus contact point on the cap. Liquid cement can be injected into a space volume between the host bone and a bone implant. The cap can be made of a material and / or have surface features that create a strong bond with the cement when the liquid cement cures. The stem can be made of a material and / or have bone ingrowth surface features that create a strong bond with the bone.

The application discloses a mold for manufacturing a shoulder joint spacer and a preparation method thereof, belongs to the technical field of shoulder joint spacer preparation, and solves the problems of uneven distribution of medicine application grooves and the inability to flexibly adjust the size, length and the like according to requirements, and comprises a lower mold box, an upper mold box, an intramedullary bone cement silica gel forming adjusting mold and a ball head forming adjusting mold which are sleeved in the lower mold box and the upper mold box, a pouring gate which is arranged on the lower mold box and the upper mold box, a plugging plug which is arranged in the pouring gate, a first positioning support column and a second positioning support column which are arranged in the lower mold box, a third positioning support column and a fourth positioning support column which are arranged in the upper mold box, and a metal support rod which is arranged on the axial center lines of the intramedullary bone cement silica gel forming adjusting mold and the ball head forming adjusting mold; and the intramedullary bone cement silica gel forming adjusting mold and the ball head forming adjusting mold are uniformly provided with protruding portions.

A glenoid implant of a shoulder prosthesis includes a baseplate (100) having a shaft (140) coupled to, and extending from a bottom surface (106), of its plate. The plate includes a peripheral ring (130) extending downwardly away from, and circumferentially around, its bottom surface. The exterior surfaces (134) of the peripheral ring have threads (136) formed therein.

This application relates to an infection control device and method for total joint replacement. An orthopedic system for delivering a therapeutic agent to bone includes an elongated rod adapted for insertion into an intramedullary canal, an inlet configured to receive the therapeutic agent, and one or more outlets configured to deliver the therapeutic agent to the bone. The elongated rod may include one or more protrusions engaging the bone, and one or more channels extending longitudinally therein, the one or more channels being fluidly coupled to the inlet. The therapeutic agent flows from the inlet through the one or more channels and then exits through the one or more outlets into the intramedullary canal. The system may be configured to allow adjustment of one or more dimensions of the system to fit the patient's anatomy.

The utility model relates to a kind of shoulder joint glen positioning device, the shoulder joint glen positioning device includes: positioning main body, main sliding member and sliding pointer, the positioning main body is equipped with guide slot, the guide slot extends along the axial direction of the positioning main body, the main sliding member includes longitudinal rod and transverse rod, the longitudinal rod is cooperated in the guide slot and adjustable along the axial position of the positioning main body, the transverse rod is connected with the longitudinal rod and extends along the radial direction of the positioning main body, the sliding pointer is connected with the transverse rod, and adjustable along the position of the extension direction of the transverse rod.The shoulder joint glen positioning device of the utility model can satisfy the use demand of different patients, and positioning accuracy is higher, and surgical effect is better.

This disclosure relates to orthopaedic implant systems and methods for restoring functionality to a bone and / or joint. The implant systems disclosed herein may include a taper locking mechanism to limit or otherwise oppose separation between components and may include one or more flanges adapted to abut an exterior of the bone.

Embodiments provide a method for determining an alternating magnetic field (AMF) transmitter design that produces a magnetic field that achieves a more uniform surface current or heating of an implant. Embodiments may utilize the method to be applicable to different geometries of implants and AMF transmitters. Embodiments produce a non-uniform magnetic field that in turn produces a more uniform current density / distribution on the implant surface. This leads to uniform heating and consistent biofilm reduction, while minimizing damage to adjacent tissues. Also, the differences in electrical properties such as conductivity, permittivity, and permeability of the implant components can be factored into the design process to achieve a uniform current density / distribution across components. An ultimate benefit derived from embodiments described herein is consistent biofilm reduction, inactivation, eradication, destruction, and / or removal and improved safety arising from heat conduction into surrounding tissues.

The present invention relates to a surgical spacer device (100) for a joint, comprising a substantially cylindrical or truncated-cone-shaped main body (101), internally hollow and configured for insertion in a distracted joint (1, 2); the main body (101) comprising: a first terminal surface (102) substantially flat and configured to abut onto a first bone portion (1) of the joint (1, 2); a second terminal surface (103) substantially annular and configured to abut onto a second bone surface (2) of the joint (1, 2) opposite the first bone portion (1), the second terminal surface (103) having a first opening (10) for access to the second bone portion (2); at least one lateral element (104) configured for maintaining a three-dimensional spaced structure between the first terminal surface (102) and the second terminal surface (103), the at least one lateral element (104) defining a second opening (20) configured for allowing a lateral access inside the main body (101) and further an access to the second bone portion (2) through the first opening (10).

A shaping instrument (11) including a first transfer mechanism (30), and a second transfer mechanism (40) connectable to a rotatable drive for effecting movement of a contoured body (20). The first transfer mechanism (30) can comprise a base swash plate (31) formed by an angular offset of a base swash plate (31) to an angled elongated tubular drive shaft (32). This effects a Single Point Centre Of Rotation (SPCOR) at (C) which is the centre of rotation around which the transfer mechanism rotates and is typically co-incident with the longitudinal axis (B) of the drive shaft (32). The second transfer mechanism is connectable to the contoured body and engageable with the first transfer mechanism wherein any precession or wobbling effect of the first transfer mechanism part causes at least one small local movement T of one or more parts of the contoured body in a rotational movement around a respective radial axis D offset to the SPCOR located centrally in the second transfer mechanism.

The invention discloses an artificial shoulder joint prosthesis design method and system, and the method comprises the steps: collecting the motion trail and muscle activation state of a shoulder joint in different motion modes, separating the feature frequency and amplitude of the shoulder joint motion, and extracting a dynamic motion feature set of the shoulder joint; inputting the dynamic motion feature set into a contact mechanical model based on a discrete element method, and simulating contact force and friction behaviors between the shoulder joint prosthesis and the skeleton to obtain contact mechanical characteristics of the prosthesis and the skeleton; and according to the contact mechanical characteristics, generating an initial structure of the prosthesis by using a topological optimization algorithm based on a generative adversarial network, generating a prosthesis topological structure with gradient material distribution, and obtaining an optimized prosthesis design scheme. By utilizing the embodiment of the invention, a prosthesis design scheme with gradient material distribution can be generated, the weight of the prosthesis is reduced, and the strength and durability of the prosthesis are enhanced.

A bone implant may include a shaft having a proximal end, a distal end, a longitudinal axis, a proximal shaft portion, and a distal shaft portion. The proximal shaft portion may include a first minor diameter, and a first helical thread disposed about the proximal shaft portion defining a first major diameter. The first helical thread may include a first concave undercut surface. The distal shaft portion may include a second minor diameter, and a second helical thread disposed about the distal shaft portion defining a second major diameter. The second helical thread may include a second concave undercut surface. The first and second concave undercut surfaces may be angled towards the distal end of the shaft. The second minor diameter may be smaller than the first minor diameter and the second major diameter may be smaller than the first major diameter.

The invention relates to a joint socket (2) which is intended for a prosthetic joint (1), is able to be secured in a bone structure (6) and has a socket insert (3). The joint socket (2) has a cylindrical external contour in its basic form. In a portion facing away from an opening in the joint socket (2), the external contour is embodied in the form of a circular tube as an encircling edge and as a result forms a protrusion (7) facing a bone structure (6) presented merely by way of example. The protrusion (7) is concentric with the socket insert (3) and is used to secure the joint socket (2) in a groove-like cutout (9) in the bone structure (6), which circumferentially encloses the socket insert (3) concentrically with a small radial spacing. In this way, the protrusion (7) forms an annular sleeve around the socket insert (3), with the result that the load-bearing capacity of the bone structure (6), which has been weakened on account of the loss of substance caused by the recess (8) in the bone structure (6) for the joint socket (2), is compensated in that both radial spreading forces on account of the securing of the joint socket (2) and external force applications are absorbed and the bone structure (6) is not loaded further.

A method of delivering a balloon implant into a patient includes slidably coupling one or more filaments coupled to tissue in the patient to the balloon implant while the balloon implant is outside the patient, advancing the balloon implant along the one or more filaments into the patient, and securing the balloon implant to the tissue.