86 results about "Bone tunnel" patented technology

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.

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.

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.

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.

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 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.

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.

The invention relates to the technical field of belt carrier titanium plates for ligament reconstruction, in particular to a self-adaptive adjusting belt carrier titanium plate for ligament reconstruction, which comprises a self-adaptive adjusting mechanism comprising a non-metal coil used for pulling a ligament graft to a corresponding preset reconstruction position and transmitting stretching torque to the ligament graft, the metal coil is used for converting the horizontal movement moment into a stretching moment; the limiting assembly is used for limiting the distance between the metal coil and the bone tunnel outlet; the limiting assembly comprises a limiting cylinder used for changing the position of the metal coil in the bone tunnel and a driven limiting gear used for limiting the elongation of the limiting cylinder; the titanium plate comprises a titanium plate body and a driving limiting gear block used for limiting the rotating radian of the driven limiting gear; the positioning needle is used for limiting the penetrating direction of the self-adaptive adjusting mechanism and the titanium plate in the bone tunnel. According to the invention, the accuracy of self-adaptive adjustment of the ligament graft is improved.

A system for assisting in real time in the production of at least one bone tunnel by arthroscopy in a joint of a patient, including an imaging device able to acquire two-dimensional images of portions of the joint of the patient, a first monitoring device and a programmable device.

The utility model relates to the technical field of medical instruments, in particular to an absorbable interface anchor which is made of polylactic acid composite materials and comprises a sleeve and an extrusion pin, the sleeve is arranged to be of a radial expandable structure, and convex teeth are arranged on the outer wall of the sleeve; the outer diameter of the lower end of the extrusion pin is smaller than the inner diameter of the sleeve, the outer diameter of the upper end of the extrusion pin is larger than the inner diameter of the sleeve, and the sleeve expands outwards in the radial direction when the extrusion pin is pushed into the sleeve. The interface anchor is arranged to be radially expandable, and the outer diameter of the interface anchor can be larger than the inner diameter of the bone tunnel, so that the fixing strength of the interface anchor in the bone tunnel is improved. Meanwhile, the friction force of the interface anchor in the bone tunnel is increased through the convex teeth on the outer wall of the sleeve, and therefore the fixing strength of the interface anchor is further improved.

A suture construct may include a sheath, a repair strand, and an activation strand. The sheath may have a first distal end portion with a first opening, a second distal end portion with a second opening, and a tail portion. The repair strand may be in the sheath and have a length extending through the first distal end portion, wherein the repair strand is configured to engage a soft tissue. The activation strand may be in the sheath and extend through the first opening and the second opening to tether the first distal end portion and the second distal end portion. The activation strand may be configured to compress and anchor the sheath in a bone tunnel. The suture construct may be manufactured from a bifurcated structure and used in a method of repairing soft tissue.

The utility model discloses a scapular glenoid bone tunnel preparation positioning guider for arthroscopic surgery, which comprises a guider handle, a catheter I, a catheter II and a drill point, one end of the guider handle is fixedly provided with a hollow catheter I, the drill point for preparing a bone tunnel is inserted into the catheter I, the drill point is provided with an inner core and a depth limit mark, and the catheter II is provided with a depth limit mark. The inner core is taken out after the bone tunnel is drilled, a pull wire can pass through the inner core for later use, a second hollow catheter is fixedly arranged above the first catheter in parallel, a guide rod playing a guiding role is sleeved with the second hollow catheter, the axis of the second catheter is parallel to the axis of the first catheter, and the inlet end of the second catheter is longer than the inlet end of the first catheter. By means of the ingenious design, high-precision positioning and guiding in the operation process are achieved, the accuracy and efficiency of the operation are effectively improved, the purposes that the bone tunnel is manufactured at a time, and repeated attempts and adjustment are not needed are achieved, the manufacturing quality of the bone tunnel is improved, the operation time is shortened, and meanwhile the operation risk and the occurrence rate of complications are reduced.

The present invention relates to a rupturing tool for surgical interventions and to a rupturing system comprising the rupturing tool and a rupturing movement generator device. The rupturing tool and system are intended for the field of traumatology, particularly for the creation of bone tunnels suitable for the proper anatomical reconstruction of tendons and ligaments; for example, for the creation of bone tunnels in interventions for reconstructing the anterior cruciate ligament (ACL) of the knee joint and in interventions for repairing the supraspinatus tendon of the shoulder joint.

The application relates to a shoulder peak positioning device, which comprises a first adjusting arm, a second adjusting arm and a holding piece connecting the first adjusting arm and the second adjusting arm, and is arranged in parallel along a first direction; the shoulder peak positioning device further comprises a first positioning piece and a second positioning piece. The first positioning piece is rotationally connected with the first adjusting arm, the first positioning piece is provided with a first positioning hole, and the first positioning piece has a first rotation axis which is parallel to the first direction. The second positioning piece is rotationally connected with the second adjusting arm, the second positioning piece is provided with a second positioning hole, the second positioning piece has a second rotation axis which is parallel to the first direction, the second rotation axis is collinear with the first rotation axis, and the vertical distance from the center of the first positioning hole to the first rotation axis is equal to the vertical distance from the center of the second positioning hole to the second rotation axis. The shoulder peak positioning device can accurately establish a bone tunnel on a shoulder peak, and can avoid secondary injury of a patient.

The utility model belongs to the technical field of medical equipment, particularly relates to an anterior cruciate ligament sounding ruler, and aims to solve the problem of high failure rate of an operation caused by inconvenience in accurate positioning of a bone tunnel position in the prior art, and provides the following scheme: the anterior cruciate ligament sounding ruler comprises a handle; one end of the metal rod is fixedly connected with the handle; the first scale line, the second scale line and the third scale line are all arranged on the outer side of the metal rod, the outer side of the handle is connected with an anti-skid pad, a first bending section is arranged on the metal rod, the angle of the first bending section is 160-170 degrees, a second bending section is arranged on the metal rod, the angle of the second bending section is 90 degrees, and the angle of the third bending section is 90 degrees. According to the bone tunnel positioner, a positioning point of a bone tunnel can be accurately found, then the bone tunnel is formed through the positioner, the bone tunnel positioner is simple in structure and convenient to use, the quality of the bone tunnel is improved, and the operation failure rate is greatly reduced.

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 utility model provides an acromioclavicular dislocation resetting and pressurizing thread passing device which comprises a thread passing structure, an adjusting structure and a longitudinal pressurizing thread guiding structure. The wire passing structure assists the lead to be arranged around the coracoid; the wire passing structure comprises two wire passing handles; the adjusting structure adjusts the second end of the wire passing structure to be opposite and separated; and the longitudinal pressurizing thread guide structure is a thread kirschner wire for guiding the thread kirschner wire to drill into the bone. Therefore, the adjusting structure adjusts the opening size of the opening end of the thread passing structure, and convenient and accurate thread winding on the coracoid through the thread passing handle is achieved. Besides, the longitudinal pressurizing thread guide structure can pressurize and reset the clavicle, and the thread kirschner wire is guided by the longitudinal pressurizing thread guide structure when drilling a bone tunnel, so that the positioning is more accurate, the surgical operation is facilitated, the surgical time is saved, the surgical success rate is improved, and the satisfaction degree of a patient is increased.

The present application relates to a kind of implant device and implant system, handle, slider and rod body, wherein: handle has first end and second end extending in axial direction, handle is provided with movable cavity;Slider is arranged in the second end close to handle, and is slidably arranged in movable cavity in axial direction;Rod body has proximal end connected with slider and distal end away from handle, and push slider releases implant member located at the distal end of rod body.Only need to open a cut on the skin during implantation, so as to reduce the risk of surgical infection, reduce surgical steps, shorten the operation time of doctor;And, user can release implant member by controlling slider to drive rod body to slide outside the body, so as to not need to open cut matching with the position of hanging end bone tunnel on the skin, reduce the positioning difficulty of implant member hanging at bone tunnel, so as to reduce the difficulty of surgical positioning.