1145results about "Muscles" patented technology

A multiple pass self-cinching suture construct includes a strand of suture material. A fixed loop is formed at one end, and an adjustable loop is formed at the opposite end. A self-cinching section is disposed between the fixed loop and the adjustable loop. The self-cinching section includes a first pass of a tag end axially through the interior of the self-cinching section to form the fixed loop. The opposite tag end passes axially through the interior of two co-axial suture segments inside the self-cinching section, forming an adjustable loop. As the adjustable loop tag end is pulled, tension is applied and the self-cinching section constricts to maintain tension. In some embodiments, the self-cinching section includes at least four segments of the strand of suture material co-axially aligned along the self-cinching section.

A method and apparatus for coupling a soft tissue implant into a locking cavity formed within a bone is disclosed. The apparatus includes a member to pull the soft tissue implant into a femoral tunnel. The member includes a suture having first and second ends which are passed through first and second openings associated with the longitudinal passage to form a pair of loops. Portions of the suture lay parallel to each other within the suture. Application of tension onto the suture construction causes retraction of the soft tissue implant into the femoral tunnel.

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.

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.

Methods of attaching a soft tissue to an adjacent bone at a defect site are provided. An adjustable loop region of a flexible construct contained in a bore defined by a fastener is passed through a tissue. The adjustable loop is passed through the tissue. The fastener is passed back through the adjustable loop to fold the adjustable loop upon itself. The fastener is attached to the bone. An adjusting arm on the flexible construct is engaged to reduce the size of the adjustable loop and secure the soft tissue to the bone.

The invention relates to an artificial woven ligament and a weaving method, and relates to the technical field of medical prosthesis replacement. The invention relates to an artificial woven ligament, in particular to an artificial woven ligament which comprises two woven bodies and a non-woven body which is located between the two woven bodies and connected with the two woven bodies respectively. The woven body comprises a plurality of cylindrical single-layer woven cylinders which are sequentially arranged from inside to outside in a sleeving mode, and the ends, away from the non-woven body, of the single-layer woven cylinders form a conical body. A plurality of weaving fixing lines are connected between the single-layer weaving barrels. The artificial woven ligament has the advantages that the artificial woven ligament does not depend on weaving and cutting techniques of doctors, the diameter of the woven fabric can be changed according to actual conditions of patients, and different requirements of ACL reconstruction implants are met.

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 tissue repair assembly is disclosed, including a soft anchor body and at least a first suture operably coupled to the anchor body. Tensioning on first and / or second ends of first suture may deploy the anchor body to a second configuration, in which the anchor body is axially compressed and radially extended. The tissue repair assembly may also include a means to cinch around a portion of a first and / or second suture and knotlessly lock the tissue repair assembly. Some embodiments may include a pre-formed knot. In some embodiments, the preformed knot may be a nail knot, provided wrapped around an insertion instrument and configured to receive and cinch around a suture extending therethrough.

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 system of toggle type suture anchors is disclosed. The plurality of suture anchors is connected in series by a plurality of independently cinchable working suture loops with one working suture loop connecting each pair of anchors in series to form a chain. Each of the suture anchors as connected by working suture loops allows tensioning of the working suture between itself and the prior anchor implanted in the serial string. Further, each anchor includes a loop type locking mechanism to lock the cinchable working suture loop subsequent to tensioning so that the loop remains fixed in size during cyclic loading during joint use. This creates an independently tensioned suture stitch between each implanted suture anchor and the just previously implanted anchor. In total the system as implanted creates a high density, continuous array of anchor-to-anchor stitches for robust securement of soft tissue to bone.

The invention belongs to the technical field of medical materials, and relates to a preparation method of an integrated gradual change type bionic gradient structure rotator cuff patch. The integrated gradual change type bionic gradient structure rotator cuff patch is prepared through the electric auxiliary solution blowing spinning technology and the heat treatment nanoimprint technology, the patch is of a composite layer structure, each transition layer and the adjacent micro-nano fiber membrane layer form a continuous fracture-free structure, the internal structure and component change are in uniform transition, discrete layering is avoided, and the patch has good application prospects. The whole patch is of a continuous gradual change type biological bionic gradient structure, histological gradient characteristics of a tendon-bone transition area are successfully simulated, and rapid healing of a tendon-bone interface can be effectively promoted.

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.

Methods for creating high-density arrays of suture stiches through a tendon into bone for reattachment of a torn tendon, particularly a rotator cuff tendon. The method includes providing a pre-strung plurality of anchors, each anchor having at least one passage therethrough with a continuous length of suture slidably and serially threaded through the at least one passage of each anchor. Each of the anchors further includes a locking assembly for locking the suture within the individual anchor. A first anchor is implanted through the tendon and the suture is locked. A second anchor is implanted a selected close distance from the first anchor, then applying tension to the suture extending from the first anchor and passing through the second anchor the second anchor is locked to create a single suture tensioned and locked stitch between the first and second anchor. This process is repeated for each anchor in the array.

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.

Novel orthopedic staples and related instruments are disclosed. An instrument is an orthopedic drill guide assembly that includes a first arm and a second arm that are retractably connected to the distal end of the instrument's outer housing, where the proximal ends of the arms are retractably connected to the distal end of the outer housing and configured to move in a retractable motion that changes the spacing between the first drill guide sleeve and the second drill guide sleeve, where the proximal end of the outer housing is configured for controlling the retractable motion of the first and second arms.

The invention relates to a rotator cuff patch spreader, and relates to the technical field of rotator cuff patches, the spreader comprises a holding part, an unfolding part and a spreading device, and the spreading device comprises a plurality of elastic supporting pieces arranged on the unfolding part and extending to the two sides of the axis of the unfolding part; the pulling mechanism is used for being connected with the rotator cuff patch and driving the rotator cuff patch to be stored and wound on the unfolding part for positioning; and the protection mechanism is arranged on the holding part in a sliding manner and extends to the outer side of the holding part, so that the rotator cuff patch is pressed and stored in the protection mechanism for protection and positioning. The rotator cuff patch is opened under the action of the multiple elastic supporting pieces and used for maintaining the state of the rotator cuff patch, then the rotator cuff patch is fixed to the rotator cuff, the rotator cuff patch is separated from the pulling mechanism and the multiple elastic supporting pieces, and therefore the operation of the rotator cuff patch can be completed, and the efficiency and quality of the operation of the rotator cuff patch are improved.

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.

The utility model discloses an adjustable knotless orthopedic ligament reconstruction internal implant, which belongs to the technical field of orthopedic implants and comprises a fixing plate, a fixing ring device and a fixing line, and a pair of first threading holes is arranged in the middle of the fixing plate; the fixing ring device comprises a fixing ring and a button fixing piece, the button fixing piece comprises a button body and a retaining ring located on the inner side of the button body, a second threading hole is formed in the retaining ring, a containing groove used for containing the button body is formed in the fixing ring, and a through hole allowing the retaining ring to penetrate out is formed in the bottom wall of the containing groove; the fixing line is wound in the first threading hole and the second threading hole to form a loop ring, the two ends of the fixing line penetrate through the bottom wall of the containing groove and then penetrate out of the containing groove from the side face of the containing groove, and clamping points used for clamping the two ends of the fixing line are formed between the containing groove and the button body. The device is high in tensile strength, accurate in ligament reconstruction positioning and good in fixing effect.

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.

Disclosed herein are methods of producing a scaffold by producing a biopolymer scaffold composition by pneumatospinning a polymer solution comprising polymer fibers onto a collector; feeding the polymer fiber solution comprising the polymer fiber into an air brush; applying a gas pressure around the polymer fiber solution comprising the polymer fiber in the airbrush; ejecting the polymer fiber from the air brush onto the collector; crosslinking the polymer fibers; and seeding a plurality of cells to the polymer scaffold composition.

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.