42 results about "Ligament repair" patented technology

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.

A dynamic ligament repair device includes a suture, a femoral side suture anchor and a threaded screw or housing implant. The screw is configured for placement in the tibia, or alternatively in the femur. A spring is housed inside an axial bore in the threaded screw. In some embodiments, the spring is a compression spring. A moveable spring button is positioned inside the axial bore adjacent a distal end of the spring. The spring button engages the spring directly in some embodiments. In alternative embodiments, an intermediate structure such as a spacer is positioned between the spring button and the spring. The suture extends between the spring button and the suture anchor. When the joint flexes or extends, the spring button travels inside the axial bore and dynamically compresses or relaxes the spring.

A device and system for inserting and impacting bone dowel allografts or bone chips into a bone tunnel. The surgical impacting system includes a surgical tamp having a proximal end and a distal end with an elongated shaft extending therebetween. The surgical tamp has an inner channel extending therethrough from the proximal end to the distal end. The distal end of the surgical tamp can have a distal tip. The surgical tamp may have a handle at the proximal end or a proximal tip at the proximal end. The surgical tamp may also have one or more slots extending through the exterior surface of the elongated shaft and into the inner channel. The surgical tamp can be configured for insertion into a delivery tube. The delivery tube serves the purpose of containing a bone dowel or bone chips therein for smooth insertion into the joint.

The utility model relates to a ground anchor assembly for ligament repair, and relates to the technical field of ground anchor assemblies, the ground anchor assembly for ligament repair comprises a ground anchor body and a fixing part used for fixing the ground anchor body, and the fixing part sleeves the ground anchor body and is provided with a plurality of positioning teeth inserted into a ligament for positioning. The anchor body is sleeved with the fixing piece, the anchor body is in threaded connection to the bone, the fixing piece is extruded to the ligament, the positioning teeth are inserted into the ligament for positioning, and therefore the contact area of the anchor and the ligament is increased, the probability that the anchor body is loosened due to rotation is reduced, and the fixing effect in an operation is greatly improved.

A device and system for inserting and impacting bone dowel allografts or bone chips into a bone tunnel. The surgical impacting system includes a surgical tamp having a proximal end and a distal end with an elongated shaft extending therebetween. The surgical tamp has an inner channel extending therethrough from the proximal end to the distal end. The distal end of the surgical tamp can have a distal tip. The surgical tamp may have a handle at the proximal end or a proximal tip at the proximal end. The surgical tamp may also have one or more slots extending through the exterior surface of the elongated shaft and into the inner channel. The surgical tamp can be configured for insertion into a delivery tube. The delivery tube serves the purpose of containing a bone dowel or bone chips therein for smooth insertion into the joint.

The invention discloses a double-anchoring ligament repair fixing nail with wing anchoring, and belongs to the field of medical instruments, the double-anchoring ligament repair fixing nail comprises a nail body comprising a nail point and a nail cylinder, and the nail point is used for penetrating into a skeleton; the inside of the nail barrel is hollow and is provided with an internal connecting thread; the operating rod and the anchoring piece are rotationally connected with the nail point, and the rotating axes of the operating rod and the anchoring piece are perpendicular to each other; the adapter barrel is arranged between the operating rod and the nail barrel, and an outer connecting thread is arranged on the outer wall of the adapter barrel and matched with the inner connecting thread; wherein the operating rod is detachably connected with the adapter cylinder, and when the operating rod drives the adapter cylinder to rotate, the nail point and the nail cylinder are indirectly driven to generate axial relative displacement through interaction of the inner connecting thread and the outer connecting thread, so that the anchoring piece expands outwards in the process of approaching the nail cylinder along with the nail point and pierces the wall of a bone channel to move outwards; and holding force is actively provided for the fixing nail. By means of the arrangement, the device can actively pierce the wall of a bone channel after being arranged in the bone channel so as to provide initial holding force.

Methods of tissue repair with a knotless tissue repair construct system is disclosed. System may include multiple anchor constructs that are soft anchor constructs. The multiple anchor constructs may include at least one knotless construct and may be inserted separately and coupled to each other as part of the method. The method may form a knotless all-suture staple construct. The method may form a knotless all-suture construct in a chain configuration. The method may include coupling a graft or bio-inductive material to the repair site. The method may include augmenting a ligament repair.

1. The name of this design product: gasket external row anchor nails. 2. Purpose of the product with this appearance design: to be used in conjunction with a bone surgery stapler to complete ligament repair and fixation surgery in the field of sports medicine. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 2 Stereoscopic Figure 1. 5. Designate Design 2 as the base design.

This invention provides a biomimetic periodontal complex multilayer hydrogel tissue engineering scaffold, its preparation method, and its application, relating to the technical field of tissue engineering scaffolds. The biomimetic periodontal complex multilayer hydrogel tissue engineering scaffold comprises, from the inside out, a cementum repair layer, a periodontal ligament repair layer, and an alveolar bone repair layer; the cementum repair layer and the alveolar bone repair layer include a mineralized hydrogel layer; wherein the raw materials for preparing the mineralized hydrogel layer include modified hyaluronic acid, methacrylamide type I collagen, and hydroxyapatite; the alveolar bone repair layer includes a non-mineralized hydrogel layer; wherein the raw materials for preparing the non-mineralized hydrogel layer include modified hyaluronic acid, methacrylamide type I collagen, and fibrin I. This invention precisely matches the mechanical and biological requirements of each layer of the periodontal complex through a three-layer structure, a reversibly hydrazone-regulated viscoelastic gradient, and a differentiated biochemical microenvironment of nHAp / FBN1.

An ankle joint sprain fixing brace relates to the field of ankle joint supporting equipment and comprises a transverse strap component, an ankle strap component and a fixing plate component, the fixing plate component comprises a lateral malleolus fixing plate, a medial malleolus fixing plate and a rear foot fixing plate, the lateral malleolus fixing plate and the medial malleolus fixing plate are symmetrically arranged, and the lateral malleolus fixing plate and the medial malleolus fixing plate are connected with the rear foot fixing plate. The rear foot fixing plate is arranged on the rear sides of the lateral malleolus fixing plate and the medial malleolus fixing plate, the ankle strap assemblies are arranged on the outer sides of the lateral malleolus fixing plate and the medial malleolus fixing plate respectively, the transverse strap assembly is wound on the common top of the lateral malleolus fixing plate, the medial malleolus fixing plate and the rear foot fixing plate, and the cold compress strap assembly is arranged on the inner side of the fixing plate assembly. The local ice compress effect can be achieved through the internal cold compress belt, so that bleeding is effectively reduced, the cold compress belt can be taken out 24 hours later, in addition, the external elastic hook-and-loop fastener in the oblique walking direction of the ankle portion is closer to walking of ligaments at the inner and outer ankles, the biological bionic effect is better achieved, and conditions are created for repairing of the damaged ligaments.

The invention aims to disclose a distal fibular ligament repairing instrument and an auxiliary positioning sleeve, and relates to the technical field of distal fibular ligament rehabilitation, the distal fibular ligament repairing instrument comprises a first titanium nail, a second titanium nail, a third titanium nail and a fourth titanium nail which are nailed into bones near four vertex angles of a distal fibular ligament; a first titanium wire is arranged between the first titanium nail and the third titanium nail, and the first titanium wire has a first limiting length; a second titanium wire is arranged between the second titanium nail and the fourth titanium nail, and the second titanium wire has a second limiting length; the titanium screw has the advantages that the first titanium screw and the third titanium screw are located on the same side of the talonfibular anterior ligament, the first titanium wire is arranged between the first titanium screw and the third titanium screw, the second titanium screw and the fourth titanium screw are located on the same side of the talonfibular anterior ligament, and the second titanium wire is arranged between the second titanium screw and the fourth titanium screw. The first titanium wire and the second titanium wire temporarily replace the distal fibular ligament and limit downward bending of the distal fibular ligament, foot stiffness caused by gypsum beating is avoided, and rehabilitation time of a patient is greatly shortened.

The embodiments herein provide shape-transforming pharmaceutical compositions and modular kits for the treatment of soft and hard tissue injuries, bone and joint defects, tendon and ligament repair, and surgical or organ exposures. The compositions comprise sterile, dry adsorbent composite polymer particles that are hydrated in situ with a sterile liquid containing one or more pharmaceutical agents. Hydration causes the particles to aggregate and transform into a conforming, shape-retentive device that provides extended coverage and sustained or controlled drug release. Kits enable powders and liquids to be applied sequentially or simultaneously, allowing tailored therapy at the point of care. Therapeutic agents may include antimicrobial, anti-inflammatory, hemostatic, regenerative, or analgesic compounds. These devices retain structure for extended durations, support customizable release kinetics, and may serve as a temporary implant to protect tissue while delivering localized therapy. The invention provides a versatile platform for prolonged, modular drug delivery across clinical and surgical settings.

Compositions comprising a condensed mesenchymal cell body and a hydrogel are provided. The compositions may further include drugs or growth factors. The condensed mesenchymal cell body may include a connective tissue cell, or even a progenitor cell capable of producing connective tissue extracellular matrices such collagen and glycosaminoglycan. Also provided are methods of treating connective tissue defects, cartilage injury, and cartilage degradation.

The utility model belongs to the technical field of articular ligament repair, and particularly relates to a positioning guide device for acromioclavicular joint reduction ligament repair, which comprises a double-tooth clamp device and a guide sleeve, the double-tooth clamp device comprises a first clamp and a second clamp, the tails of the first clamp and the second clamp are provided with latches, and the guide sleeve is sleeved on the first clamp and the second clamp. The first clamp head is provided with upper teeth, the upper teeth are fixedly connected with a double-rail arc-shaped sliding rod, the second clamp head is provided with lower teeth, the lower teeth are fixedly connected with a concave arc column, the joint of the concave arc column and the lower teeth is provided with positioning teeth, the far end of the concave arc column is provided with a positioning bent column, and the guide sleeve comprises an outer guide cylinder. The acromioclavicular joint restoration device is convenient for the proceeding of an acromioclavicular joint restoration operation, not only can the acromioclavicular joint be pressurized and restored through the double-tooth clamp device, but also the acromioclavicular joint restoration device can be installed in a guiding manner, and the damage caused by too deep drilling of a kirschner wire or a hollow drill bit to subclavian nerve blood vessels at the lower edge of a coracoid process is effectively avoided.

The invention relates to a developable absorbable nail for repairing and fixing a ligament around an ankle joint and a preparation method of the developable absorbable nail. The absorbable nail is obtained by combining an iodine-containing compound and a screw body through a polymer function method. On the basis of a traditional high polymer material ankle joint peripheral ligament repairing fixing nail, a high polymer material and an iodine-containing compound are combined through a polymer functionalization method, and therefore the effect of developing under X rays is achieved. The problem that the absorbable nail is difficult to develop under X rays after being implanted into a human body can be solved, so that the position of the absorbable nail can be observed more clearly, and the nail breaking condition can be observed in time.

A guide and method for drilling a bone tunnel at a drill angle comprising a guide arm having an elongated segment joined to a connecting segment, a guide body having a hook terminating in a hook tip adapted to engage a distal side of the bone, a k-wire guide, and a locking rod; the elongated segment comprising a k-wire guide tunnel adapted to receive the k-wire guide; the connecting segment comprising a distal end having a guide arm tunnel; a longitudinal axis of the guide arm tunnel and a longitudinal axis of the k-wire guide tunnel converging at an angle equal to the drill angle; the guide body adapted to receive the connecting segment distal end and form a locking rod tunnel adapted to receive the locking rod; the k-wire guide and the locking rod each having a tip end adapted to engage a proximal side of the bone.

A guide and method for drilling a bone tunnel at a drill angle comprising a guide arm having an elongated segment joined to a connecting segment, a guide body having a hook terminating in a hook tip adapted to engage a distal side of the bone, a k-wire guide, and a locking rod; the elongated segment comprising a k-wire guide tunnel adapted to receive the k-wire guide; the connecting segment comprising a distal end having a guide arm tunnel; a longitudinal axis of the guide arm tunnel and a longitudinal axis of the k-wire guide tunnel converging at an angle equal to the drill angle; the guide body adapted to receive the connecting segment distal end and form a locking rod tunnel adapted to receive the locking rod; the k-wire guide and the locking rod each having a tip end adapted to engage a proximal side of the bone.

Ligament repair. Some examples are directed to methods and related systems for calibration of optical equipment for use in a computer-guided endoscopic ligament repair, such as repair of an anterior cruciate ligament (ACL). Other examples are directed to methods and related systems verification of registration between three-dimensional bone models and bone visible through an endoscope during ligament repair. Yet still further examples are directed to intraoperative changes to the tunnel plans for ligament repair.

A guide and method for drilling a bone tunnel at a drill angle comprising a guide arm having an elongated segment joined to a connecting segment, a guide body having a hook terminating in a hook tip adapted to engage a distal side of the bone, a k-wire guide, and a locking rod; the elongated segment comprising a k-wire guide tunnel adapted to receive the k-wire guide; the connecting segment comprising a distal end having a guide arm tunnel; a longitudinal axis of the guide arm tunnel and a longitudinal axis of the k-wire guide tunnel converging at an angle equal to the drill angle; the guide body adapted to receive the connecting segment distal end and form a locking rod tunnel adapted to receive the locking rod; the k-wire guide and the locking rod each having a tip end adapted to engage a proximal side of the bone.

The invention discloses a degradable bone and ligament composite repair guide device, which is implanted in a bone defect part or a ligament repair area needing mechanical support and tissue regeneration guide of a human body, and comprises a bone end, a transition area and a ligament end, wherein the bone end is implanted into the end part of a long bone of a human body or the surface of an irregular bone and covers a metaphyseal cancellous bone area around a ligament attachment point, and the bone end is made of a porous titanium alloy material; the ligament end covers the ligament fracture part, and the ligament end is a collagen nanofiber membrane; the transition area is located between the bone end and the ligament end and covers the junction area of the bone and the ligament and the joint capsule attachment point. The three-section type structural design of the bone end, the transition area and the ligament end is adopted, bone tissue, a bone and ligament junction area and ligament tissue are repaired and guided, and integrated synergistic repair of the bone and the ligament is achieved.

The present invention relates to an ankle ligament repair and fixation nail, and its innovation lies in: including a suture shuttle and an expansion wing. One end of the suture shuttle is provided with a threading and fixing hole, and a card slot is provided on the outer peripheral wall of the suture shuttle. The inner wall of the expansion wing is provided with a limiting step, and a threading hole communicating with its inner cavity is provided at the end of the expansion wing. The suture shuttle is clamped inside the expansion wing through an opening at one end of the expansion wing, and the limiting step of the expansion wing is clamped in the card slot of the suture shuttle. The present invention is not only convenient to operate, but also can be quickly and conveniently locked and is not easy to fall off.

The application discloses an anti-wrinkle firming soothing efficacy component combination based on skin cell energy and application, and belongs to the technical field of cosmetics. The composition comprises EPHMER mitochondrial marine protective factors, adenosine silanol, DPHP ligament repair factors and AQUXYL five-dimensional barrier repair factors in specific proportions. The application takes mitochondrial energy metabolism as the core, constructs a "protection-energy supply-repair-barrier" multi-pathway synergistic system, and breaks through the single target limitation of traditional anti-aging components. The composition can specifically target mitochondria, significantly increase the ATP content of cells, efficiently promote collagen synthesis, strengthen the skin barrier and reduce irritation, and is especially suitable for sensitive skin anti-aging. Through cell, 3D skin model and human body test verification, the composition shows significant and mild effects in terms of anti-wrinkle, firming and soothing. The composition provided by the application can be widely applied to cosmetics such as essence and cream.

The present application belongs to the field of medical devices and discloses a controllable, retractable, locking puncture suture device for arthroscopic ligament repair, comprising a sleeve and an inner rod. The sleeve comprises an operating end and a puncture end, the inner wall of the operating end being provided with a guide ridge and a stop ring, and the puncture end being provided with a hooking structure. The inner rod is inserted into the sleeve, with one end located outside the sleeve as a control end and the other end located inside the puncture end, and an elastic component is sleeved in the middle. The elastic component comprises a spring seat and a spring, the spring being located between the spring seat and the stop ring, with one end abutting the spring seat and the other end fixed to the stop ring. The spring seat is axially fixed relative to the inner rod, and a sliding groove is provided on its circumference to cooperate with the guide ridge. When the inner rod moves into the sleeve to compress the spring to a predetermined stroke, the sliding groove disengages from the guide ridge, and the inner rod cooperates with the hooking structure to form a fixed line hole. The spring seat can rotate about its axis to axially abut against the guide ridge to limit its position. The present application can improve the flexibility and safety of suturing operations during ligament repair surgery.

The invention belongs to the field of medical instruments, and discloses a controllable telescopic locking puncture stitching instrument for arthroscopic ligament repair, the controllable telescopic locking puncture stitching instrument comprises a sleeve and an inner rod, the sleeve comprises an operation end and a puncture end, the inner wall of the operation end is provided with a guide edge and a stop ring, and the puncture end is provided with a thread hooking structure; one end of the inner rod is located outside the sleeve and serves as a control end, the other end of the inner rod is located in the puncture end, and the middle of the inner rod is sleeved with an elastic assembly; the elastic assembly comprises a spring seat and a spring, the spring is located between the spring seat and the stop ring, one end of the spring abuts against the spring seat, and the other end of the spring is fixed to the stop ring. The spring seat is fixed relative to the inner rod in the axial direction, and the periphery of the spring seat is provided with a sliding groove matched with the guide edge. When the inner rod moves into the sleeve to enable the spring to be compressed to a preset stroke, the sliding groove is separated from the guide edge, the inner rod and the thread hooking structure are matched to form a thread fixing hole, and the spring seat can rotate around the axis of the spring seat so as to abut against the guide edge in the axial direction for limiting. According to the invention, the flexibility and safety of suture operation in ligament repair surgery can be improved.

Methods and devices for the repair of a ruptured ligament using a scaffold device are provided. Aspects of the invention may include a scaffold attached by one or more sutures to one or more anchors. In aspects of the invention, the anchors may be secured to a bone near or at the repair site.

Compositions comprising a condensed mesenchymal cell body and a hydrogel are provided. The compositions may further include drugs or growth factors. The condensed mesenchymal cell body may include a connective tissue cell, or even a progenitor cell capable of producing connective tissue extracellular matrices such collagen and glycosaminoglycan. Also provided are methods of treating connective tissue defects, cartilage injury, and cartilage degradation.

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.

A repaired tendon includes a proximal tendon section having a free end, and a distal tendon section having a free end that opposes the free end of the proximal tendon section. Four bidirectional barbed sutures are implanted in the repaired tendon for approximating the free end of the proximal tendon section with the free end of the distal tendon section. Each of the four bidirectional barbed sutures includes a proximal section having proximal barbs that engage the proximal tendon section, a distal section having distal barbs that engage the distal tendon section, and a stop located between the proximal and distal barbs that engages the approximated free ends of the proximal and distal tendon sections. The bidirectional barbed sutures have first suture bites and second suture bites that are shorter than the first suture bites.

The utility model relates to the technical field of ligament repair, in particular to a posterior cruciate ligament traction ejector. The tool comprises a grab handle and a back shore part. The grab handle is in arc transition connection with the back shore part; the front end of the back shore part is an inverted trapezoidal groove, and each edge in the groove is provided with an arc chamfer; and the lengths of the two outer side surfaces of the non-curved surface of the inverted trapezoidal groove from the top end to the joint are gradually reduced until the two outer side surfaces are matched with the size of the grab handle. The inverted trapezoidal groove is formed, so that the anterior cruciate ligament can be stably propped against the interior of the inverted trapezoidal groove and cannot slide, and a good protection effect is achieved; an operator can open the anterior cruciate ligament by a proper distance with small force, enough operation space is provided for posterior cruciate ligament repair operation, operation is simpler, common doctors can grasp the anterior cruciate ligament repair operation after slightly practicing, and the anterior cruciate ligament repair device has high popularization value.

The self-cinching adjustable loop suture construct includes a suture strand having a first end, a second end, and an adjustment loop. The end loop is disposed at the first end, and a continuous loop is disposed on the suture strand at the adjustment loop, the continuous loop being movable along the suture strand at the adjustment loop. A self-cinching section is disposed on the suture strand between the adjustment loop and the end loop. An anchor is disposed in the end loop. A shuttle suture is disposed in the continuous loop, and a threading suture is disposed in the end loop. The suture construct provides a self-cinching adjustable loop tensioning device for securely fastening tissue that can be securely fastened without the use of knots to maintain tension during ligament repair or reconstruction.