129 results about "Bone tunnel" patented technology

A suture button system for fixing a syndesmotic injury comprises a flexible fixation implant and an inserter device used to deploy the implant across bones. The flexible fixation implant typically comprises a flexible connector and two suture buttons which interface with the bone surface or a bone plate or washer. The flexible connector comprises a plurality of suture strands. The buttons typically have a feature which allows them to interface with an instrument used to deploy the implant across the two bones. The inserter device is configured to interface with the flexible fixation implant and to position it across bones through a pre-drilled bone tunnel. The inserter device may comprise an cannulated insertion rod and a handle.

The invention belongs to the technical field of medical apparatus and instruments, and aims to solve the problems that a guide wire can be guided only through assistance of a rear approach after a tibial tunnel is established for posterior cruciate ligament reconstruction at present, and an arthroscope cannot see a tibial dead point of a posterior cruciate ligament only through a front approach, so that a doctor lacks direct visual reference when operating the guide wire to guide in; the invention provides a posterior cruciate ligament reconstruction guide wire capturing system, aiming at solving the technical problems that the positioning difficulty and the error risk are increased because the posterior cruciate ligament reconstruction guide wire capturing system only depends on experience and indirect image assistance, and comprises a handheld grab handle, a positioning sleeve, a positioning crank arm and a positioning end, and further comprises a tibia guide wire mechanism and a guide wire capturing mechanism, the tibia guide wire mechanism is arranged in the positioning sleeve in a sleeved mode and used for guiding in a guide wire through a tibia tunnel. The guide wire capturing mechanism is rotationally connected with the positioning end and used for capturing and locking the guide wire, and the guide wire can conveniently penetrate out of a bone tunnel behind the tibia. The guide wire can be captured and locked, the guide wire can be conveniently guided in, and the positioning difficulty and the error risk are reduced.

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 provides an extrascopic rotary bone grinding device for spine endoscopic surgery, and belongs to the technical field of machinery. The extra-scope rotary bone grinding device for the spine endoscopic surgery comprises a handheld part and a driving assembly fixedly connected to the outer end face of the handheld part in a locked mode, and is characterized in that the driving end of the driving assembly is in shaft connection with a shaft rod, a grinding head is integrally manufactured at the outer end of the shaft rod, a plurality of grinding teeth are arranged on the peripheral face of the grinding head in a staggered mode, and a toothed trephine is arranged at the outer end of the grinding head; the outer wall of the shaft rod is sleeved with a protective outer sleeve, a liquid injection component is arranged on the inner layer of the protective outer sleeve, a scrap capturing component is integrally manufactured between the inner wall of the protective outer sleeve and the outer wall of the shaft rod, the inner ring wall of the scrap capturing component is in interference fit with the outer wall of the shaft rod, and one end of the interior of the scrap capturing component is in clearance fit with the outer wall of the grinding head. And in cooperation with the protective outer sleeve, the liquid injection component and the debris capturing component, the accuracy, safety and convenience of bone tunnel expansion operation in the spine endoscopic surgery can be effectively improved.

A suture button system for fixing a syndesmotic injury comprises a flexible fixation implant and an inserter device used to deploy the implant across bones. The flexible fixation implant typically comprises a flexible connector and two suture buttons which interface with the bone surface or a bone plate or washer. The flexible connector comprises a plurality of suture strands. The buttons typically have a feature which allows them to interface with an instrument used to deploy the implant across the two bones. The inserter device is configured to interface with the flexible fixation implant and to position it across bones through a pre-drilled bone tunnel. The inserter device may comprise an cannulated insertion rod and a handle.

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.

This disclosure describes embodiments of an anchor with a body configured to expand radially outwardly along its entire length. The anchor includes, but is not limited to, a cylindrical body having a longitudinal axis and an inner surface and an outer surface, the inner surface defining a central bore, the cylindrical body having a slot exposing the central bore, the slot having a helical path around the longitudinal axis, wherein the slot is configured to expand so that the cylindrical body changes from a first state to a second state in response to pressure on the inner surface, and wherein an outer diameter of cylindrical body in the second state is larger than the outer diameter of the cylindrical body in the first state.

The present disclosure provides an all-suture anchor which includes a suture cannula, a pulling wire, an outer tube and an inserter, wherein the suture cannula is provided in the outer tube, the pulling wire goes through the suture cannula, the pulling wire wraps around the inserter, the suture cannula and the outer tube are both in plug-in fit with the inserter, both ends of the pulling wire pass through the suture cannula, respectively, and pass out of one end of the outer tube far from the suture cannula, the inserter is configured to push the suture cannula out of the outer tube, and the pulling wire is configured to pull the suture cannula pushed out of the outer tube, so that the suture cannula retracts, stacks and expands. The expanded suture cannula clings to the side wall of a bone tunnel to provide a fulcrum for fixing the anchor.

This disclosure relates to a robotic arm control method, apparatus, device, and medium. The method includes: in response to the robotic arm reaching a target pose, detecting the interference state between a robotic arm reference frame and a surgical area reference frame; if interference exists, acquiring the external torque of the robotic arm; using the alignment of the robotic arm's tool axis direction with the bone tunnel direction as a constraint, calculating the rotation angle of the robotic arm based on the external torque; determining the joint angle of the robotic arm based on the rotation angle, and controlling the rotation of the robotic arm according to the joint angle. According to the technical solution of this disclosure, the problem of intraoperative reference frame interference can be solved.

The utility model discloses an adjustable operation positioner, and relates to the technical field of medical instruments. In order to solve the problems that an existing positioner cannot be fixed to the glenoid bone, positioning is inaccurate, and differentiation cannot be met, the following technical scheme is provided that the glenoid bone positioner comprises a glenoid bone fixing assembly and a bone drill leading-in assembly, and the glenoid bone fixing assembly is connected with the bone drill leading-in assembly through an adjuster; the glenoid bone fixing assembly comprises an exchange rod, an exchange channel and a locking device, one end of the exchange rod is provided with a first protruding part, the first protruding part and the axial direction of the exchange rod form a non-obtuse angle, the exchange rod is movably sleeved with the exchange channel, and the locking device is used for fixing a glenoid bone between the first protruding part and the exchange channel. The bone tunnel can be fixed on the glenoid bone firmly, does not need to be held by hands, and can avoid skewing of the manufactured bone tunnel; the differentiated requirements of different crowds are met.

Graft fixation systems and methods are provided for securing a graft within a bone tunnel. An exemplary graft fixation system may include a surgical locking button adapted for fixating both a graft and a reinforcement suture relative to bone.

The invention discloses a suture-containing anchor device for fixing articular cartilage stripping and a fixing method. The device comprises an anchor, a soft needle, a buckle cylinder and a suture; the anchor is made of titanium alloy absorbable materials and is provided with a double-spiral decompression groove and a suture channel. The suture is made of eight strands of ultra-high molecular weight polyethylene coated with polylactic acid, one end is fixed with the anchor, and the other end is welded with a nickel-titanium alloy soft needle through laser; the buckle cylinder is detachable and wraps the suture and the soft needle connecting section. The method comprises the following steps: resetting a bone block and temporarily fixing the bone block, drilling a central bone tunnel, implanting an anchor nail, installing a buckle cylinder, then enabling a soft needle with a suture to penetrate out, drilling a peripheral bone tunnel, threading into a tension band in a bundle splitting manner, adjusting the tension to 0.5-1.2 N / mm < 2 >, and then combining and locking the SMC sliding knot and the surgical knot. Minimally invasive fixation is achieved, mechanical stability and tension uniformity are improved, and cartilage healing is facilitated.

The application provides a kind of extrusion nail and its assembly for orthopedics, which is applied to the technical field of orthopedic surgical instruments.The extrusion nail adopts a threadless structure and is composed of a nail body, a barb and an extrusion groove, and can be adapted to different length bone tunnels through the head-to-tail matching of multiple nails.The assembly includes an execution end and an impact handle, which can provide linear impact force to realize the linear implantation of the extrusion nail.The application replaces the rotary screwing with linear advancement, fundamentally avoiding the shearing and torsional injury of ligaments, and has the advantages of precise implantation, convenient operation and stable fixation, which meets the clinical needs of orthopedic ligament reconstruction surgery and improves the safety of surgery and the quality of postoperative healing.

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.

A drill assembly for creating a reverse counterbore bone tunnel while increasing bone preservation. The drill assembly including a housing having an actuation mechanism and a cannulated shaft connected to the actuation mechanism. The drill assembly also includes a rigid rod extending through the cannulated shaft. Engaging the actuation mechanism moves the cannulated shaft along the rigid rod. The drill assembly additionally includes a distal tip connected to the cannulated shaft and the rigid rod. Proximal movement of the cannulated shaft along the rigid rod causes the distal tip to rotate from a first configuration to a second configuration. In the second configuration, the distal tip extends at an angle relative to the cannulated shaft.

The utility model relates to the technical field of medical instruments, in particular to a positioning device for assisting reduction and fixing acromioclavicular dislocation, which comprises a base plate, an acromion end positioning plate is arranged at one end of the base plate, and a clavicle end positioning block is arranged at the other end of the base plate. Holes are formed in the acromion end positioning plate, acromion end fixing guide needle sleeves are fixedly connected to the positions corresponding to the holes, a plurality of holes are formed in the base plate, and a first coracoshoulder ligament fixing guide needle sleeve, a second coracoshoulder ligament fixing guide needle sleeve and a clavicle end guide needle fixing sleeve are fixedly connected to the positions corresponding to the holes respectively. The positioning device can achieve accurate positioning, damage to blood vessels, nerve tracts and surrounding tissues below the coracoid process is avoided, and operation bleeding is reduced. Due to the fact that the individualized bone tunnel is established, the position where the belt carrier titanium plate is placed is appropriate, the osteolysis phenomenon is reduced, and meanwhile the risk of coracoid fracture is reduced. According to the operation method adopting the positioning device, the operation difficulty is remarkably reduced, the operation time is shortened, and the learning curve of young physicians is reduced.

A method includes forming a bone tunnel through a first bone and a second bone and inserting a flexible construct through the bone tunnel. The flexible construct includes a first anchoring element and a second anchoring element coupled by at least one flexible strand defining an adjustable loop. The at least one flexible strand includes a first end extending from the first anchoring element in an opposite direction from the adjustable loop. A length of the adjustable loop is adjusted to position the first bone and the second bone in a selected spacing. The first end of the at least one flexible strand is coupled to a tissue section using a third anchoring element.

A drill guide arm for providing guidance for placement of a bone tunnel, while protecting against trauma. The guide arm includes a first arm at a proximal end connected at an angle to a second arm, the second arm extending to a distal end. The angle can be within the range of 80°-110°. The second arm extends along a first axis. The guide arm also includes a distal tip extending at a second angle from the second arm at the distal end, and an indicator feature extending from the distal tip toward the first arm. The indicator feature extends along a second axis, the second axis being substantially parallel to the first axis. The guide arm can also include a shield feature of the distal tip. The shield feature has a width wider than the remainder of the distal tip.

A patella punching and positioning assembly relates to the technical field of medical equipment and comprises a first fixing plate and a second fixing plate which are attached to two adjacent sides of a patella and connected into a whole. Fixing holes are formed in the first fixing plate and the second fixing plate, positioning rods used for being inserted into patella to achieve fixing are arranged in the fixing holes, guide sleeves are arranged on the first fixing plate and the second fixing plate and are grouped in a one-to-one correspondence mode, and the axes of the two guide sleeves in each group intersect and form an obtuse angle. The patella punching positioning assembly is simple in structure and convenient to use, can position and guide the drilling position, improves the drilling accuracy, facilitates formation of an L-shaped bone tunnel, improves the operation efficiency, reduces the operation difficulty and is suitable for reconstruction of inner patellofemoral ligaments.

The invention discloses an arthroscope positioning method and system for knee joint minimally invasive surgery. The anatomical mark points are recognized and tracked in real time through the operation video stream collected by the arthroscope camera in combination with the computer vision algorithm. The pre-planned ideal bone tunnel position and the anatomical marker in the real-time image are accurately registered, so that the system can dynamically generate surgical navigation information and visually display the position of the entrance point of the bone tunnel. According to the scheme, dependence of a traditional navigation system on a special surgical instrument and a complex calibration process is avoided, the visual field of the arthroscope familiar with a surgeon can be fully utilized, and more visual and convenient surgical guidance is provided, so that the surgical precision and efficiency are remarkably improved, and the risk of surgical wounds and complications is reduced.

This invention provides a titanium plate and a method for threading its matching wires. The titanium plate has a fixing hole and a traction hole at both ends of its surface. Between the fixing hole and the traction hole are a set of self-locking holes (first and second), a return hole, and a through hole. The two self-locking holes and the return hole are located near the end of the titanium plate where the fixing hole is located, and the line connecting the center points of the two self-locking holes and the return hole forms a triangle. The through hole set is located near the end of the titanium plate where the traction hole is located, and the number of through holes is even. The titanium plate of this invention possesses all the functions of existing titanium plates. In particular, the matching wires of this invention can self-lock at the two self-locking hole positions through a special threading method, eliminating the need for additional knotting fixation and allowing the ligament graft to have a certain degree of positional adjustment within the bone tunnel.

The present invention relates to a rupture tool for surgical procedures, and a rupture system comprising the rupture tool and a rupture movement generating device. The rupture tool and system are suitable for the field of traumatology, and are particularly used for creating bone tunnels suitable for correct anatomical reconstruction of tendons and ligaments; for example, for creating bone tunnels in surgery for reconstructing knee anterior cruciate ligament (ACL) and in surgery for repairing shoulder supraspinatus tendons.

The invention provides a proximal tibia telescopic integral bone taking and grafting device, and belongs to the technical field of medical instruments. Comprising a handle, a conveying pipe is slidably connected into the handle, a funnel is fixedly connected to the outer wall of the conveying pipe, and a first annular sliding groove is formed in the inner wall of the end, close to the handle, of the conveying pipe; and the bone grafting assembly is used for assisting medical staff to perform bone grafting on the collapsed tibial plateau of the patient, and the bone grafting assembly is connected with the handle, the conveying pipe and the first annular sliding groove. By arranging the bone grafting assembly, the jacking area of a tibial plateau can be increased by matching deformation of a first connecting rod and a second connecting rod with a jacking piece, and meanwhile, a gap generated by deformation of the first connecting rod and the second connecting rod is matched with a discharging groove, so that a bone tunnel can be filled with filler conveyed by an auger from multiple directions; the jacked tibial plateau is preliminarily fixed, and it is avoided that when a subsequent bone grafting device is separated from a bone tunnel, the tibial plateau sinks and collapses, and resetting of the tibial plateau is affected.

Various methods and devices are provided for a graft fixation device for fixing a graft member within a bone tunnel. In one embodiment, a graft fixation device is provided having a radially expandable sheath adapted to be disposed within a bone tunnel, and a sheath expander adapted to be received within the radially expandable sheath to expand the sheath and thereby anchor a graft between the sheath and the bone tunnel. In an exemplary embodiment, the graft fixation device is particularly useful to affix a graft within a femoral tunnel.

The present invention discloses a guide for anatomically reconstructing the anterior cruciate ligament tunnel with three-dimensional precise positioning. By slidably arranging a first positioning unit and a second positioning unit at both ends of a connection unit respectively, the femoral coronal plane is positioned by the cooperation of the two positioning units; an initial coordinate positioning unit is arranged on the first positioning unit or the second positioning unit, and an arc-shaped sliding arm is slidably and rotationally connected, and drives the arc-shaped sliding arm to move up and down and back and forth, and the sliding connection enables the arc-shaped sliding arm to move left and right; a guiding unit is installed on the arc-shaped sliding arm, and the guiding unit points to the center of the circle; the starting point position of the drill entry can be determined by the initial coordinate positioning unit and the arc-shaped sliding arm; the entry direction angle of the drill can be determined by the rotation of the arc-shaped sliding arm relative to the initial coordinate positioning unit and the sliding of the guiding unit on the arc-shaped sliding arm, so as to realize the positioning and orientation operation of bone tunnel reconstruction, ensure the accuracy of bone tunnel establishment, and solve the problem of low precision of bone tunnel positioning in existing surgeries.

This disclosure describes embodiments of an anchor with a body configured to expand radially outwardly along its entire length. The anchor includes, but is not limited to, a cylindrical body having a longitudinal axis and an inner surface and an outer surface, the inner surface defining a central bore, the cylindrical body having a slot exposing the central bore, the slot having a helical path around the longitudinal axis, wherein the slot is configured to expand so that the cylindrical body changes from a first state to a second state in response to pressure on the inner surface, and wherein an outer diameter of cylindrical body in the second state is larger than the outer diameter of the cylindrical body in the first state.

Systems, methods, and devices for passing implants, sutures, or tissue through bone tunnels are provided. For example, disclosed herein are embodiments of a device for capturing and retrieving an implant, a suture, or tissue, wherein the device comprises a housing, a guide shaft, and a filament configured to slide freely within the guide shaft, and wherein the filament forms a bight configured to enlarge or shrink by advancing or retracting the filament.

This invention relates to a ligament fixation device, comprising a fixation component and a clamping component. The fixation component includes a fixation plate and a positioning pin. The fixation plate has multiple through holes, and the positioning pin is connected to the fixation plate. The through holes provide space for the ligament to pass through. The clamping component includes a pressure plate, which is connected to the fixation plate, thereby clamping and fixing the ligament passing through the through holes between the pressure plate and the fixation plate. This ligament fixation device utilizes the pressure plate and the fixation plate to clamp and fix the ligament passing through the through holes, avoiding damage to the ligament and eliminating the need to compress the inner wall of the bone marrow tract to fix the ligament, thus reducing damage to the bone tissue of the bone marrow tract. Therefore, the ligament fixation device of this invention can effectively fix the ligament with minimal damage, and also reduces damage to the bone tissue of the bone tunnel inner wall, thereby promoting bone and ligament healing.

A device having an implantable body associated with at least two filaments or sutures and configured for use in soft tissue reconstructions is provided. One exemplary embodiment includes an implantable body, an adjustable filament loop for holding ligament grafts that is coupled to the body, and a shuttle suture removably coupled to the implantable body and configured for shuttling the body through at least a portion of a bone tunnel. The loop can be defined by a self-locking knot, and one or more loop-adjusting limbs can extend from the knot, with a portion of the limb(s) also extending into a hollow portion of the shuttle suture. In some embodiments having two adjustable limbs, an intermediate portion of each limb can be the portions disposed in respective hollow portions of the shuttle suture. Other configurations of devices and systems, as well as methods for performing ACL repairs, are also provided.