58 results about "Shoulder replacement" patented technology

The invention provides a shoulder joint replacement surgery navigation system and method, and relates to the technical field of computers, and the system comprises a controller and a navigation positioning device; the controller is in communication connection with the navigation positioning device; the controller comprises a preoperative planning module, a preoperative simulation module and an intra-operative execution module. According to the navigation system and method for the shoulder joint replacement surgery, by combining the preoperative medical image of the affected bone and the medical image of the healthy bone corresponding to the affected bone, the healthy form of the affected bone can be reflected more accurately under the condition that the affected bone has bone defect and / or abnormal form, and then prosthesis planning can be conducted based on the three-dimensional bone model of the affected bone, so that the patient experience is improved. The preoperative surgical planning is more objective and quantified, the movement range of the shoulder joint on the operative side of the patient after the prosthesis to be implanted is implanted into the affected bone can be simulated based on the parameter information of the prosthesis to be implanted, the accuracy and rationality of the prosthesis planning are further improved, and the accuracy and reliability of the orthopedic surgery are remarkably improved.

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 system for an anatomical total shoulder arthroplasty or reverse total shoulder arthroplasty can include an infinitely adjustable augment angle baseplate, an implant, a baseplate, an engagement member, and a prosthetic head. The infinitely adjustable augment angle baseplate can be configured to be secured to a first bone of a patient. The implant can be insertable into a second bone of a patient. The baseplate can be insertable into the implant and configured to be attached to the second bone of the patient. The engagement member can be couplable to either of the infinitely adjustable augment angle baseplate or the baseplate. The prosthetic head can be couplable to the other of the infinitely adjustable augment angle baseplate or the baseplate. The prosthetic head can be engageable with the engagement member to form a prosthetic joint between the first bone and the second bone.

Systems and methods for a customized reusable guide for shoulder replacements. In an example embodiment, a method comprises providing an alignment compass base, wherein the alignment compass base is configured to enable rotational orientation of a radial offset insert and a K-wire guide tube with respect to a guide base, inserting the guide base component into the alignment compass base, inserting the radial offset insert into the guide base component, rotating, using a first alignment tool, the radial offset insert to a first orientation angle with respect to the guide base component, inserting the K-wire guide tube into the radial offset insert, rotating, using a second alignment tool, the K-wire guide tube to a second orientation angle with respect to the guide base component.

Systems, devices, and methods for preparing a glenoid to receive an implant using a transhumeral approach are disclosed. Various tools, such as a reamer attachment, can be disposed in a glenohumeral space proximate to the glenoid, and then a driver or other shaft can be separately introduced into the glenohumeral space. The driver can be coupled to the reamer attachment and then operated to treat or otherwise prepare the glenoid to receive an implant. After the reamer attachment is no longer needed to perform the desired treatment, it can be detached from the driver and both the reamer attachment and driver can be removed from the glenohumeral space. The disclosed systems, devices, and methods can be performed with or without a guidewire, and various other instruments, such as those for identifying a center of the glenoid, can be used.

A reverse shoulder system can include, for example, a glenoid baseplate comprising a longitudinal axis, the glenoid baseplate further including a stem and a central channel within a sidewall of the stem. The stem can include a longitudinal axis. The longitudinal axis of the glenoid baseplate can be angled with respect to the longitudinal axis of the stem, wherein the longitudinal axis of the glenoid baseplate is not perpendicular with respect to the longitudinal axis of the stem. Other components including a glenosphere, tools, and methods of use 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.

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 invention provides a universal and / or convertible glenosphere and / or glenosphere shoulder joint replacement system and method. [Solution] An implant component is provided. The implant component includes one of a glenosphere component having a concave outer surface and a glenosphere component having a convex outer surface. The system may also include one of a first base plate having a central boss portion extending from the bottom surface and a central opening through which it is positioned, or a second base plate having a central boss portion extending from the top surface and a central opening through which it is positioned. An anchor boss having a central opening through which it is positioned is provided. The system may include a central compression screw configured to reliably compress the first base plate, the second base plate, or the anchor boss against the patient's bone by being fixed through the central opening.

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.

Embodiments described herein relate to total shoulder arthroplasty devices and related systems, methods, and kits useful in implanting glenoid implants in the glenoid fossa of scapula bones. In some embodiments, a glenoid implant device is disclosed including a screw and a liner. In some embodiments, the liner is configured to decouple from the screw during a revision surgery. In some embodiments, the liner has an inner portion configured to couple with a driver to dispose the implant at least partially into a bone.

The present disclosure provides for prosthetic implants to be used in various surgical repairs, including for procedures like total shoulder arthroplasties and reverse total shoulder arthroplasties. The implants include two main parts—a frame and a prosthetic component. The frame includes an aperture that is configured to receive the prosthetic component, allowing the prosthetic component to make direct contact with bone at the surgical site. Various configurations are provided that allow the prosthetic component to be coupled to or otherwise engage with the frame, and at least some of the configurations are such that the reverse procedures can be done without having to fully re-tool and / or modify the bone. A variety of procedures resulting from the improved implants are also provided.

An end effector for a robotic surgical arm can include a housing, a drive shaft, a motor, and two or more drill heads. The housing can be securable to the robotic surgical arm, and the housing can define a cavity therein. The drive shaft can be located at least partially within the housing. The motor can be located at least partially within the housing or the robotic surgical arm, and the motor can be operable to rotate the drive shaft. The two or more drill heads can be supported by the housing and can be engaged with the drive shaft to be driven by the drive shaft to rotate together. The two or more drill heads can be configured to simultaneously form two or more bores in a bone.

An implant insertion tool or tools interact with a user interface provided by a computer to guide the operator to insert the implant at a desired location and trajectory. The user interface may guide an operator through a registration process, a process for positioning the tip of the implant at the desired location, and a process for aligning the implant to have the desired insertion trajectory. The implant may be a medical implant such as a K-wire that is inserted into a bone, such as the glenoid of a scapula during shoulder arthroplasty or reverse arthroplasty.

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.

Robotic surgical systems and methods for preparing a glenoid for a receiving an implant in a shoulder joint replacement surgery. A control system associates, with the glenoid, a virtual boundary that defines a volume of material that should be removed from the glenoid and a virtual line haptic being defined based on a planned trajectory of a screw to be implanted into the glenoid to facilitate installation of the implant. The control system controls a robotic manipulator to operate and constrain a first cutting tool relative to the virtual boundary to remove the volume of material from the glenoid to prepare a surface of the glenoid to receive a base of the implant. The control system controls the robotic manipulator to operate and constrain a second cutting tool relative to the virtual line haptic to form a center hole within the glenoid to receive the screw.

The invention provides a scheme planning method and device in a shoulder joint replacement scene, equipment, a medium and a product. The method comprises the following steps: acquiring an upper limb scanning image of a target object and a shoulder joint motion image of the target object; the shoulder joint motion image is used for recording the motion process of the healthy side shoulder joint under the physiological posture; identifying the motion range of the healthy shoulder joint based on the shoulder joint motion image and the upper limb scanning image; the displacement planning scheme of the affected side shoulder joint is dynamically adjusted based on the motion range of the unhealthy side shoulder joint until a target displacement planning scheme of the affected side shoulder joint is obtained, and the displacement planning scheme of the affected side shoulder joint corresponds to the fact that the motion range of the affected side shoulder joint after displacement is matched with the motion range of the unhealthy side shoulder joint. The scheme planning under the individualized shoulder joint replacement scene is achieved, it is ensured that the shoulder joint on the affected side can reach the activity range close to that on the uninjured side after replacement, the individualized level of shoulder joint replacement operation planning is improved, and the prognosis effect of a patient is optimized.

The present disclosure generally relates to a surgical tool for use in shoulder arthroplasty. The surgical tool includes a humeral head cut guide configured to fit within a rotator interval of a subject in need of shoulder arthroplasty. The cut guide can further include a top surface, a bottom surface, a front surface, a back surface, and at least two sides. The surgical tool can also have at least two nonconverging pin holes and a receiving portion configured to permit reversible attachment of the cut guide to an attachment arm assembly.

The utility model discloses a shoulder glenoid side guide plate for reverse shoulder joint replacement, which is provided with an attaching surface attached to the surface of a glenoid and a shell surface for driving to rotate, the guide plate comprises a base body and at least three positioning blocks annularly arranged on the periphery of the base body, and the positioning blocks all convexly extend towards the attaching surface. The base body is provided with an attachment surface and a positioning block, the attachment surface is provided with an attachment area for accommodating a glenoid cavity, the positioning block is provided with a plurality of gear parts facing the attachment area, the glenoid cavity is limited in the attachment area by the plurality of gear parts, one side of the shell surface of the base body is provided with a positioning column extending outwards, and the positioning column penetrates through the attachment area and forms a first needle hole. According to the glenoid cavity reamer, the shell face is rotated so that the multiple gear parts can limit the glenoid cavity to the attaching area, then the position of the first needle hole can be determined, and the position and guiding of the glenoid cavity reamer can be determined in the mode that a surgical needle is beaten in the first needle hole.

The invention relates to the technical field of postoperative rehabilitation auxiliary equipment, and discloses an inverse shoulder joint replacement postoperative rehabilitation training device which comprises a mounting base used for providing basic support, and an adjusting plate is slidably mounted in the length direction of the top of the mounting base. The main rod is rotationally installed around the axis perpendicular to the top face of the adjusting plate and used for driving the upper limb of the patient to achieve shoulder joint abduction and anteflexion rotation, and the fixing component is detachably installed on the outer wall of the main rod in a clamped mode and used for stably fixing the upper limb of the patient. Supporting surfaces such as bed edges can be stably clamped; the adjusting plate can slide along the convex rail to adjust the transverse position, the rotating disc can freely rotate to adapt to different training directions, relative fixing is achieved through the limiting hole and the plug pin, the individual rehabilitation training requirements of different patients are met, and an accurate position basis is provided for the main rod to directly face the shoulder joint of the patient.

The present disclosure relates in general to surgical instruments and methods of use. More specifically, but not exclusively, the present disclosure relates to an insertion device and a method for use for reverse shoulder replacement surgery. The surgical insertion device of the present disclosure comprises a handle portion, an armature portion, and a tip portion that are designed for side entry glenosphere insertion. In some instances, the surgical insertion device comprises an adjustable arm / tip orientation. In other instances, the surgical insertion device comprises a fixed curved tip orientation. In both instances, the surgical insertion device is designed to improve access to surgical sites while mitigating surrounding tissue and / or nerve damage.

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 provides a shoulder replacement surgery navigation system and method, which relates to the field of computer technology. The system includes: a controller and a navigation positioning device; the controller is communicatively connected to the navigation positioning device; the controller includes a preoperative planning module, a preoperative simulation module, and an intraoperative execution module. The present invention provides a shoulder replacement surgery navigation system and method. By combining preoperative medical images of the affected bone and medical images of the healthy bone corresponding to the affected bone, the healthy morphology of the affected bone can be more accurately reflected when the affected bone has bone defects and / or morphological abnormalities. Furthermore, prosthesis planning can be performed based on the three-dimensional bone model of the affected bone, making preoperative surgical planning more objective and quantitative. Based on the parameter information of the prosthesis to be implanted, the range of motion of the patient's surgical shoulder joint after the prosthesis is implanted in the affected bone can be simulated, further improving the accuracy and rationality of prosthesis planning, and significantly improving the accuracy and reliability of orthopedic surgery.

Intra-operative adjustment system (1) for a reversed total shoulder arthroplasty procedure, the intra-operative adjustment system comprising a trial humeral articular component (2) configured for mounting on a stem (104) of a humeral assembly (102) of a reversed total shoulder arthroplasty prosthesis (101), the trial humeral articular component (2) comprising a trial metaphysis component (4) having a housing (41), a sensor system (5) mounted in the housing (41), and a trial liner (3) removably mountable to the housing (41) and configured for coupling to the sensor system (5), the sensor system (5) including a force sensing system (6). The force sensing system (6) comprises a shear force sensing device (8) configured for measuring a shear force acting on the trial liner (3) in a shear plane (Sxy) and a compression force sensing device (10) configured to measure a compression force acting on the trial liner (3) in a compression direction (Z) orthogonal to the shear plane.

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.

Systems, devices, and methods for preparing a glenoid to receive an implant using a transhumeral approach are disclosed. Various tools, such as a reamer attachment, can be disposed in a glenohumeral space proximate to the glenoid, and then a driver or other shaft can be separately introduced into the glenohumeral space. The driver can be coupled to the reamer attachment and then operated to treat or otherwise prepare the glenoid to receive an implant. After the reamer attachment is no longer needed to perform the desired treatment, it can be detached from the driver and both the reamer attachment and driver can be removed from the glenohumeral space. The disclosed systems, devices, and methods can be performed with or without a guidewire, and various other instruments, such as those for identifying a center of the glenoid, can be used.

This invention comprises base plate and glenosphere designs, as well as cutting guides and holder instruments, developed to provide stronger fixation with a more minimally invasive approach to the shoulder in patients undergoing reverse shoulder arthroplasty for any reason. This newly developed technique allows for surgical operation in a more confined space, particularly in challenging cases such as tight shoulders. In addition, it offers advantages such as being usable as an alternative technique in osteoporotic patients with high cortical fixation and in revision surgeries or in cases with reduced bone stock due to various reasons. In standard base plate designs, it is known that fixation is predominantly achieved in the trabecular bone by screws inserted from the reamed peripheral bone surface surrounding the implant. However, in osteoporotic patients, trabecular bone becomes weakened and the bone stock may not provide sufficient support. Furthermore, version differences related to anatomical variations of the glenoid seen among patients may cause problems in component placement and screw insertion if proper preoperative assessment is not performed. Moreover, in classical component design, in order to send the guidewire in the correct direction corresponding to the surface where the central peg will be applied, soft tissue dissection exposing the entire glenoid must be performed. Performing this dissection may pose challenges for the surgeon in tight shoulders, increase the duration of surgery, and carry risks of complications such as instability or injury to neurovascular structures. In addition, in classical component design, the acceptable threshold of contact between the glenoid and base plate is considered to be 80%. If this is not achieved, implant failure may occur after prosthesis application. When the contact surface between the glenoid and base plate falls below 50%, graft application becomes indicated. Although it is a successful method, it is technically demanding, and in cases of graft non-union, alternative options are limited. Another method is the use of augment components for the defective area. This application not only presents high technical difficulty but also requires well-prepared three-dimensional preoperative planning. Custom-made implants are another option and are technically the most laborious and expensive to manufacture. With this invention, compared to previous techniques, the management of glenoid defect and excessive version problems can be achieved by providing higher cortical fixation with anterior-weighted support.

The present invention provides a glenoid prosthesis used in total shoulder arthroplasty, belonging to the field of medical device technology. It includes a glenoid implant, the end of the glenoid implant is provided with a mounting plate, the end of the mounting plate is provided with four groups of elastic telescopic rods at equal angles, the tail ends of the four groups of elastic telescopic rods are connected to push plates, the inner side of the mounting plate is provided with four groups of clamping blocks 1 at equal angles, and also includes a fixing component, the fixing component is installed at the end of the mounting plate, and the fixing component is used to fix the glenoid prosthesis. The present invention is provided with a fixing component, and the fastening screws provide radial support force to the clamping block 2 and the clamping block 1, so that the contact block on the contact plate can always be close to the bone mounting surface, and will not be loosened and fall off due to the inclination of the bone section, causing secondary damage to the patient's body.

Systems and methods for providing implant placement guidance in a shoulder procedure are disclosed. Tracking elements are affixed to a patient's scapula and humerus. The patient's shoulder is oriented into one or more orientations. Non-stressed positional data is collected based on a location and alignment of the tracking elements for each of the one or more orientations. A distraction force is applied to the shoulder using a force application device, and stressed positional data is collected based on the location and alignment of the tracking elements for each of the one or more orientations. Optimized implant placement and / or sizing is determined based on relative gleno-humeral translation data determined from the non-stressed positional data and the stressed positional data.

In some embodiments, the present invention provides a reverse shoulder glenoid prosthesis which supports the attachment of multiple different types of modular attachments that can: 1) provide additional scapular fixation (ie external to the glenoid) in order to improve glenoid implant fixation in cases of severe bone loss / fracture, 2) provide joint line lateralization to improve tissue stability in cases of severe glenoid / scapula bone loss, 3) facilitate use and containment of glenoid bone graft in cases of severe glenoid / scapula bone loss—particularly in those cases in which the glenoid defect is uncontained / peripheral 4) achieve glenoid fixation while at the same time reconstructing the scapular bone in cases of scapula fractures, glenoid fractures, and / or acromial fractures, and 5) provide improved rTSA joint biomechanics, particularly posterior rotator cuff efficiency by changing the line of action of the infraspinatus and teres minor muscles to improve their muscle tension, and also increase each muscle's external rotation and abduction moment arm lengths.