797results about "Muscles" patented technology

An orthopedic tool includes a main body and a reference member. The reference member may be configured to engage an anatomical feature of a patient, such as the patient's bone. The angle of the reference member may be adjusted using a knob.

A bone anchoring surgical system comprising a bone anchoring device comprising a bone anchor body configured to anchor a bone; and a deformable structure associated with the bone anchor body and located distally or proximally to the bone anchor body, the deformable structure configured to expand following deployment thereof in a target inner body skeleton position.

A cannula system and method for tissue repair includes a cannula defining a central lumen and a divider removably coupled to the cannula. The divider has a divider shaft to separate the central lumen into at least two discrete working channels.

A readily implantable knotless suture anchor that de-couples the angle of insertion of the anchor from the tissue passage step and other steps of conventional procedures. An anchor provides an internal locking mechanism configured such that: suture knots do not have to be tied; suture and tissue tension can be easily adjusted intraoperatively; and suture passage and tensioning can be done at a variety of positions and angles. A method includes: passing a first suture through a patient's tissue and then through a loop of a shuttle suture; pulling the open end of the shuttle suture until the first suture passes through an internal suture locking mechanism; applying tension in the first suture until adequate tension is achieved with respect to the tissue; automatically engaging an internal locking member; and securing the first suture against further relative movement with respect to the anchor.

A weft yarn for an artificial ligament (1), a weft yarn preparation method, and an artificial ligament (1). The artificial ligament (1) is of a round rod structure; a first woven part (102), an in-joint free filament part (103), and a second woven part (104) which are sequentially connected are formed in the round rod structure in the axial direction thereof; the in-joint free filament part (103) comprises a plurality of weft yarns (201), and the weft yarns (201) extend in the axial direction of the round rod structure; and each weft yarn (201) has a fineness of 1000 D-3000 D / 1-100 F, and a mechanical strength of 75-300 N. By increasing the mechanical strength of a single yarn formed in the in-joint free filament part (103) of the artificial ligament (1), the number of yarns in the in-joint free filament part (103) is decreased. The present invention can eliminate a knee joint synovial membrane inflammatory response caused by chippings of the artificial ligament (1) in the reconstruction process of the artificial ligament (1), reduce the degree of contact adhesion between the in-joint free filament part (103) and the tissue, reduce the probability of adhesion, and solve the clinical problems of the inflammatory response and the prolonged surgery time which are caused by difficult removal due to adhesion of the free filaments and the tissue in the revision surgery.

Multiple systems are described for repairing or replacing anatomic ligaments and tendons utilizing toothed straps and bony anchors incorporating rotatable discs that lock the straps in an axial fashion. Specialized instrumentation is used to prepare the bone and to insert the anchor into the bone while providing proper orientation of the locking disc for accepting the toothed strap.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

A system is provided for the approximation of two bones. The system may include an implant having a first anchor, a flexible segment, and a second anchor. The first anchor may be configured for insertion into a first bone. The second anchor may be configured to engage with a second bone. The flexible segment may extend between the first and second anchors. The system may include a delivery device which may include a removable driver configured to facilitate insertion of the first anchor into the first bone, and a first handle configured to engage the removeable driver. The delivery device may include a second handle configured to increase tension on the flexible segment. The delivery device may include a third handle configured to engage the second anchor with the second bone and to attach the flexible segment to the second anchor.

A fluidic artificial muscle actuator may include at least one inflatable bladder defining a first inflatable segment coupled to a first member and to a second member arranged at opposite ends of the first inflatable segment, and a second inflatable segment coupled to a third member and to a fourth member arranged at opposite ends of the second inflatable segment, and an effector coupled to the first inflatable segment and to the second inflatable segment for providing an actuator output. The first inflatable segment is configured to contract in a longitudinal direction with increase in fluid pressure in the first inflatable segment and the second inflatable segment is configured to extend in the longitudinal direction with increase in fluid pressure in the second inflatable segment.

Surgical inserters and methods for tissue repair are disclosed. The inserter for tissue repair includes a tube and a shaft, where the shaft is designed to be inserted into a bone hole together an anchor loaded thereon. The inserter also features an integrated cutter that can cut a repair strand used for the repair of damaged tissue.

Methods and devices for the repair of a torn or injured ligament or tendon are provided. The methods include the use of multiple scaffolds, e.g., beads. The multiple scaffolds may be positioned along a suture or other device such that they are moveable with respect to one another or the injured tissue.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

Systems and methods for providing fixation of soft tissue (for example, ligament) to bone by employing a novel multi-piece device. The novel multi-piece device is a ligament fixation system consisting of a larger collar that is initially impacted into a bone aperture, and a smaller plug / bullet-shaped part that is impacted into the larger collar. During ligament repair / reconstruction, the graft is inserted into a bone tunnel with sutures from the graft extending outside the tunnel. The sutures are passed through a collar of the multi-part device and the collar is then inserted into the bone tunnel. The graft suture strands may be tensioned. Subsequently, the smaller plug / bullet-shaped part is impacted into the collar thereby maintaining the tension on the graft sutures. The plug / bullet-shaped part is tightened after the desired tension on the suture is achieved.

The invention relates to the technical field of medical instruments, in particular to an artificial ligament braided fabric. The artificial ligament braided fabric comprises a braided part, the braided part is formed by interweaving warp yarns and weft yarns, a mesh staggered structure is formed, the warp yarns extend in the width direction of the braided part, and the weft yarns extend in the length direction of the braided part. Compared with the prior art, by optimizing the weaving structure and the size design, the complex movement requirements of various joint parts such as the ankle joint and the acromioclavicular joint can be met, the stable fixing effect is provided, and the risks of loosening and shifting of the graft are reduced.

A tool kit for minimally invasive implantation of a tendon fixation implant in the field of arthroscopic human medicine is provided. The tendon fixation implant includes a medial anchor, a lateral anchor, and a base plate. The tool kit includes a medial anchor inserter having a medial anchor drive mandrel and a medial anchor release tube. The medial anchor release tube is designed to receive the medial anchor drive mandrel. The medial anchor drive mandrel is designed both to receive a medial anchor and to introduce the medial anchor into bone by driving it into the latter. The medial anchor drive mandrel has a locking head for locking the medial anchor drive mandrel to the medial anchor release tube. The tool kit includes a base-plate inserter having a handpiece and a base-plate inserter tube designed to receive the base plate of the tendon fixation plate.

Systems and methods for preparing a ligament graft for a ligament reconstruction procedure are provided. In general, the described techniques utilize a graft holder construct having a graft preparation holder and a suture assembly removably coupled thereto. The graft preparation holder includes an elongate support rail having a longitudinal axis, and a plurality of leaf segments positioned along the longitudinal axis in a spaced relationship and extending laterally from the support rail. The leaf segments can bend to a graft holding configuration so as to define a graft receiving channel configured to receive a graft therethrough. The holder also has at least one support structure configured to mate with the leaf segments to provide stability and rigidity to the segments. The suture assembly has at least one suture tail that can be pulled to affix the suture assembly to a graft without penetrating the graft.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

Electromechanical implantable device for actuating a patient's eyelid (11), comprising an actuator (2) for activating the opening or closing of the eyelid. The actuator is a dielectric elastomer actuator. The device may comprise a rod (3). The actuator is intended to be implanted under the skin of the patient's forehead, and linked to the eyelid via said rod.

Systems and methods for preparing a ligament graft for a ligament reconstruction procedure are provided. In general, the described techniques utilize a graft preparation system having a holder and a delivery suture assembly removably coupled thereto. The delivery suture assembly can include a spine coupled with an anchor suture configured to form a self-tightening knot used to position the assembly around a graft and a plurality of suture windings configured to be affixed to the graft when the assembly is deployed. The assembly is delivered to the graft using the holder and the sutures can be affixed to the graft without penetrating therethrough. The spine helps to evenly distribute the load among the windings compressing the graft which are thus are capable of withstanding increased loads. Thus, an improved, simplified, and time- and labor-saving approach to preparing ligament grafts is provided.

Systems and methods for preparing a ligament graft for a ligament reconstruction procedure are provided. In general, the described techniques utilize a graft holder construct having a graft preparation holder and a suture assembly removably coupled thereto. The graft preparation holder includes an elongate support rail having a longitudinal axis, and a plurality of leaf segments positioned along the longitudinal axis in a spaced relationship and extending laterally from the support rail. The leaf segments can bend to a graft holding configuration so as to define a graft receiving channel configured to receive a graft therethrough. The holder also has at least one support structure configured to mate with the leaf segments to provide stability and rigidity to the segments. The suture assembly has at least one suture tail that can be pulled to affix the suture assembly to a graft without penetrating the graft.

A conductive hydrogel fiber including a hydrogel network formed from a water-soluble hydrogel polymer and conductive fillers dispersed therein is provided. The hydrogel network includes a porous structure having nanofibrillar network walls, the surfaces of which are provided with interconnected crystallized nanofibrils formed by concentration and aggregation of the hydrogel polymer. The conductive hydrogel fiber exhibits high electrical conductivity, excellent tensile strength, large elongation at break, high toughness, and low swelling in water.

Surgical constructs, assemblies, kits and methods of tissue fixation are disclosed. Soft tissue augmentation is conducted with a simple device that allows a surgeon to augment poor tissue in a most expedient and straightforward manner. The device includes an implant in the form of a molded part which has one or more barbs that are angled generally in a retrograde fashion. The implant is affixed to the graft desired to be augmented onto patient's tissue. The surgeon needs only “hook” the distal portion of the graft / implant device into patient's tissue and pull to fix the graft in contact.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

A knotless suture anchor system is disclosed for improved anchoring in tissue. The knotless suture anchor system includes an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal ends, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end. The knotless suture anchor system also includes an interference member insertable distally into the longitudinal passageway to secure a portion of a suture within the longitudinal passageway by compressing the portion of the suture between the interference member and the anchor body, and a frangible connection that joins a proximal member to the anchor body.

Systems and methods are provided for performing tensionable knotless surgical procedures. A suture locking device that includes a one-way locking mechanism may be utilized for tensioning and locking one or more strands of suture during the surgical procedure. The one-way locking mechanism may be established by one or more locking barbs of the suture locking device.

The invention discloses a spiral reinforced composite structure artificial ligament with a bundle characteristic and a preparation method thereof, and belongs to the technical field of biomedical materials. The artificial ligament is of a composite structure, is composed of a plurality of units and has a bundle-shaped characteristic. When the artificial ligament is stretched in the axial direction, the negative Poisson's ratio effect is achieved in the direction perpendicular to the axial direction. The structure of each unit is a spiral reinforced knitted structure and is prepared and formed by adopting a textile technology. The artificial ligament is formed by weaving a medical-grade fiber material or a surface-modified fiber material with biocompatibility. The physical characteristics such as the size, the surface roughness, the surface mesh size, the tensile mechanical behavior and the rigidity of the artificial ligament can be regulated and controlled through the design of a textile weave structure and process parameters. The physical performance of the artificial ligament can be regulated and controlled by changing the preparation process, tissue growth is better promoted so as to be better combined with a marrow tract interface, and the nonlinear stretching mechanical behavior of a natural ligament under the stress working condition is simulated.

The present application relates to a kind of composite rotator cuff patch and its preparation method and application, belong to the field of biomaterials technology.The structure layer and biological layer are all biological medical materials, do not need to introduce crosslinking agent, and by the structure layer and biological layer alternate composite design, avoid the problem that traditional synthetic material is not degradable or short degradation period, with controllable degradation period, improve the tear resistance and mechanical support of patch, effectively reduce the risk of inflammatory response, improve the biocompatibility and safety of patch, finally realize the applicability and effect of improving composite rotator cuff patch in clinical application.

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.