121 results about "Bone fixation" patented technology

A bone fixation system for reconstruction and / or trauma treatment of bones, the bone fixation plate comprising: a bone fixation plate configured and dimensioned for application to a patient's bone, the bone fixation plate comprising an in-use upper surface and an in-use lower surface with at least one opening formed on the upper and lower surfaces to form a passage extending from the upper surface to the lower surface; each passage being defined by inner walls extending from the upper surface to the lower surface, the inner walls having a height extending between the upper surface and the lower surface, the inner wall further comprising: a threaded inner wall portion extending from the upper surface towards the lower surface, the threaded inner wall portion having threads with a thread pitch (PW); and a non-threaded lower inner wall portion extending from a lower part of the threaded inner wall portion towards the lower surface of the bone fixation plate; and at least one bone screw with a threaded screw head having threads with a thread pitch (PH) for engaging and interfacing with the threaded inner wall for variable angle anchoring of the threaded screw head during use.

An example apparatus is provided for the approximation of two bones. The apparatus can include a first anchor configured for insertion into a first bone. The apparatus can include a flexible segment, and an internal mechanism configured to adjust a distance between the first bone and a second bone. The internal mechanism can include first and second components, the first component configured to engage with a distal end of the flexible segment, and the second component configured to engage with the first component and the first anchor such that the second component is movable along a length of the first anchor to cause the first component to move thereby adjusting the distance. The apparatus can include a second anchor configured to engage with the second bone and the flexible segment such that the flexible segment extends between the first component of the internal mechanism and the second anchor.

A bone fixation system configured to fix one or more bone segments of extremity bones is provided.

The present disclosure relates to a prosthesis (400) configured for implantation in a carpometacarpal joint in the wrist, the prosthesis comprising a first and a second implant part member (405a,b) configured to be screwed into a radius and metacarpal bone respectively. Each implant part member (405a,b) comprising an articulation member (420a,b) configured to be received in the bone fixation member (410a,b) in a releasable manner. The articulation members (420a,b) comprise orientation pins (423) configured to be inserted into bore sections of the bone fixation members 410a,b. When seated in the bore sections, the first portions of the articulation members (420a,b) with the orientation pins (423) are substantially centered along the central axes of the bone fixation members (410a,b), thereby forming common central axes extending through the bone fixation members (410a,b) and the articulation members (420a,b). The radius articulation member (420a) comprises a replacement articular surface configured for articulation with a replacement articular surface located on the metacarpal articulation member (420b). The radius replacement articular surface has (420a) a configuration that is asymmetric about the common central axis of the radius bone fixation (410a) and articulation members (420a). The bore sections have cross-section (419) extending perpendicularly to the central axis defining a first polygonal outline (429). The orientation pins (423) have cross-sections defining a second polygonal contour line, such that when the orientation pins (423) of the articulation members (420a,b) are seated in the bores of the bone fixation members (410a,b), rotation of the articulation members (420a,b) in relation to the bone fixation members (410a,b) is prevented.

The present invention provides an osteosynthesis plate for fixing bone fragments in the repair of bone, particularly the mandible. [Solution] The plate body P comprises a plate body having at least one bridge portion BU used to bridge a gap S extending between bone fragments K1, the plate body comprising fixing portions BA1, BA2 each associated with at least one fixing point, at least one fixing point BP1, BP2 of the fixing portions formed on an island portion IA, the island portion being connected to each associated fixing portion only via spring segments FS1, FS2 which allow elastically restorable relative displacement between each fixing portion and each island portion, at least one of the spring segments causing relative displacement between the island portion and the associated fixing portion when a load is applied in the principal loading direction of the bone, and increasing the distance between the island portion and at least one bridge portion.

A method for bone fixation using a compression staple system may include loading a compression staple including legs into an inserter, positioning a drill guide proximate first and second bone portions, using the drill guide and a drill to create a first and second hole in the first and second bone portions, wherein the first and second holes may be configured to receive the legs of the staple, using the drill guide and a first and second drill pin, driving the first and second drill pins into the first and second bone portions, withdrawing the drill guide and leaving the drill pins in the first and second bone portions, guiding the inserter and the staple over the first and second drill pins, inserting the legs of the staple into the first and second holes, actuating the inserter to release the staple, withdrawing the inserter, and removing the drill pins.

A fully threaded implant for use for tissue and bone fixation to restore anatomical relationships has been discovered.

A hinge apparatus has a pair of outrigger bars that attach to and extend outwardly from respective joint bodies. The outrigger bars can be adjusted at various angles relative to each other. The joint bodies have respective surfaces that face and engage each other. A joint screw connects the joint bodies. A torque amplifying knob with collapsable turn levers rotates a central screw turn actuator. The actuator is engaged with the screw so that movement of the actuator is caused in opposite first and second linear directions along the threaded body when rotational force is applied in opposite first and second rotational directions, respectively, to the torque amplifying knob. The turn levers of each knob can be collapsed in a side-by-side arrangement. The turn levers of the knobs are ergonomically designed so that the knobs can be hand operated, without tools, in the collapsed and un-collapsed configurations.

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 zygomatic operation auxiliary positioning support which comprises a fixing part, a first connecting support, a suspension connecting assembly and a guide ring, the fixing part is provided with three fixing fulcrums, and the three fixing fulcrums are installed on a first fixing supporting plate, a second fixing supporting plate and a third fixing supporting plate respectively; one group of first connecting brackets is detachably connected between the third fixed support plate and the first fixed support plate, and the other group of first connecting brackets is detachably connected between the third fixed support plate and the second fixed support plate; a suspension connecting assembly is arranged between the second fixing support plate and the third fixing support plate, the suspension connecting assembly is further connected to the first fixing support plate, the guide ring is connected to the suspension connecting assembly, and an inlet point is arranged between the second fixing support plate and the third fixing support plate. An absolute reference system is established through the three bone fixing fulcrums, path optimization is achieved through the adjustable connecting mechanism, accuracy is guaranteed, necessary flexibility is reserved, position deviation is reduced, and operation safety is greatly improved.

A system and method for fusing the sacroiliac joint is described herein. The system includes a first sacrum anchor and a first compression anchor for implantation through a bore in the iliac bone into engagement with the first sacrum anchor. The first sacrum anchor includes an external thread portion, and an internal channel defined by an inner surface. The inner surface includes an internal thread portion. The first compression anchor includes an outer thread portion along part of the shaft configured to engage the internal thread portion of the first sacrum anchor. Rotation of the first compression anchor draws the first compression anchor toward the first sacrum anchor when the outer thread portion of the first compression anchor is threadably engaged with the internal thread portion of the first sacrum anchor. This configuration allows a user to dial in the appropriate compression on the SI joint.

Periprosthetic bone fixation plates are disclosed including, for example, periprosthetic proximal femur plate, periprosthetic distal femur plate, periprosthetic humerus plate, periprosthetic ring plate, and periprosthetic troch plate. In use, the periprosthetic bone fixation plates are arranged and configured for use in periprosthetic fractures. That is, the periprosthetic plates include one or more features to facilitate positioning and securement of the bone fixation plate to a patients bone that previously received a surgically implanted orthopedic device or implant such as, for example, an intramedullary nail, a hip prosthesis, a knee prosthesis, etc. In use, the one or more features are designed and configured to facilitate avoidance of the previous surgically implanted orthopedic device or implant. In addition, the periprosthetic bone fixation plates are arranged and configured to facilitate plating of a longer working length as compared to existing bone fixation plates (e.g., plating from, for example, femoral condyle to greater trochanter).

Disclosed herein is a fractured bone repair kit, components and methods of use of same. The kit includes a coupler that secures an intramedullary implant to a targeting guide that guides fasteners into bone fixation holes of the intramedullary implant to secure the intramedullary implant to the fractured bone. The coupler includes a sleeve and a fastener. The sleeve is releasably securable to the targeting guide such that the targeting guide is removable from the coupler and the intramedullary implant when attached to the coupler. An actuator of the targeting guide may be toggled to transition the kit from an assembled configuration in which the targeting guide is secured to the coupler to a released configuration in which the targeting guide is removable from the coupler.

The invention relates to the technical field of medical apparatus and instruments, and discloses an intelligent skeleton fixing and resetting device suitable for orthopedic surgery, comprising two hinged support arms, connecting arms rotatably mounted on the support arms, screw rods fixedly mounted on the connecting arms, and a threaded sleeve sleeved on the two screw rods, a first screw rod is arranged on the supporting arm, adjusting assemblies are arranged on the fixing column and the threaded sleeve, bone nail holes are formed in the mounting plate, and a quick release assembly is arranged on the mounting plate; the adjusting assembly comprises a plurality of gear rings which are distributed in a linear array mode. According to the intelligent skeleton fixing and resetting device suitable for the orthopedic surgery, the lever principle is used for amplifying the torsion generated when medical workers adjust the skeleton, the medical workers pull the operation handle to drive the adjusting gear to drive the gear rings, then labor-saving adjustment of the skeleton position is achieved, the physical burden of the medical workers during operation is relieved, different gear rings are selected during adjustment, and the adjustment efficiency is improved. And high-precision control on adjustment can be realized.

Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail. In some embodiments, the proximal end may further include a cross-locking feature, which includes a second bone anchor that interlocks with a first bone anchor, for example, for enhanced bone purchase and bony fixation.

The present application relates to a kind of implantable fixation device and method for mouse spinal cord administration, the device includes: catheter assembly, which includes sleeve, injection inner tube and locking nut, the catheter assembly is used to carry out fixed-point infusion in spinal cord parenchyma by the bone hole opened on vertebral vertebra;Vertebra fixation assembly, which includes two V-shaped supports for clamping and fixing on the two sides of the outer periphery of vertebra;And bonding reinforcement system, which includes the initial solid seal layer formed by adhesive to realize the sealing between bone hole and catheter assembly and the structural holding adhesive resin layer formed by resin to realize the fixation between vertebra fixation subassembly and vertebra.The present application designs special vertebra fixation assembly: V-shaped support, and is combined with "biological glue preliminary adhesion" and "dental cement overall wrapping", and constructs a multi-level, rigid-flexible combined "sandwich fixation" composite fixation system.

The invention discloses an angle and length adjustable percutaneous minimally invasive bone fracture plate fixing channel for traumatic orthopedics, and relates to the field of traumatic orthopedics, the angle and length adjustable percutaneous minimally invasive bone fracture plate fixing channel for traumatic orthopedics comprises a handheld mechanism held by an operator, a plurality of adjusting mechanisms used for establishing a bone fracture channel and a bone fracture plate clamping mechanism, the adjusting mechanisms are the same in structural shape, and the bone fracture plate clamping mechanism is used for clamping the bone fracture plate. The bone fracture plate clamping mechanism is used for clamping a bone fracture plate, the adjusting mechanism is used for adjusting the length of the bone fracture channel, and the handheld mechanism is used for controlling the angle of the bone fracture channel and adjusting the length of the bone fracture channel. According to the angle and length adjustable percutaneous minimally invasive bone fracture plate fixing channel for the traumatic orthopedics department, multi-angle and length adjustment can be conducted on the channel through the handheld mechanism, an operator can accurately judge whether a bone fracture plate reaches a preset position or not by observing a display screen, position deviation caused by judgment depending on experience in a traditional operation is avoided, and the operation efficiency is improved. And the soft tissue injury caused by repeated adjustment is greatly reduced.

The invention discloses free mouse multi-brain-region optical genetic manipulation head-mounted equipment based on an optical fiber array, and relates to the technical field of optical genetics, the free mouse multi-brain-region optical genetic manipulation head-mounted equipment comprises a skull fixing base, the skull fixing base is fixed to the surface of a mouse skull through bone screws, and a glass window is installed in the skull fixing base; according to the free mouse multi-brain-region optical genetic manipulation head-mounted device based on the optical fiber array, the signal output end of a light source generator is inserted into a signal input port, gaskets of different heights are selected to be matched with a limiting ring, the position of an insertion core array is adjusted, and the output ends of a plurality of insertion cores make contact with the upper surface of a glass window; z-axis fine adjustment is achieved by replacing gaskets of different heights, it is ensured that the end face of the ferrule is tightly attached to the surface of a glass window, light loss and scattering are avoided, the light spot positioning precision and the space consistency of stimulation depth are improved, the eight-channel ferrule array supports simultaneous input of optical signals of different wavelengths or modes, and multi-site and multi-parameter parallel optical genetic manipulation is achieved.

A bone reduction and fixation device (1, 70) comprises an elongated biplanar plate along most of its length having an L-shaped profile defined by a first plate surface (3A, 4A) and one or more second plates (3B, 4B), in which the first and second plates comprise a plurality of countersunk holes (8) configured for receipt of bone-fixing screws (10). The biplanar plate comprises two biplanar L-shaped end sections (3, 4) defined by end parts of the first plate and second end plates, and a monoplanar central section (2) defined by a central part of the first plate, in which the central part of the first plate has a thickness greater than the end parts. The L-shaped end sections help guide bone fragments into correct alignment and hold the alignment while the surgeon adjusts one of or both of the fragments laterally and medially to reduce the fragments. The L-shaped profile of the plate also provides for greater bending and torsional stiffness, allowing the plate to have a reduced thickness.

A threaded implant for bone fixation is provided. The implant includes a head. The implant includes a shaft extending distally from the head. The shaft includes a distal tip. The shaft includes a first set of threads extending a first predetermined length from the distal tip. The first set of threads are configured to capture cortical bone in one of a foot and / or ankle bone of a patient. The shaft includes a second set of threads extending a second predetermined length from the first set of threads. The second set of threads are configured to capture epiphyseal bone in the one of the foot and / or ankle bone. Related methods are also provided.

The invention discloses a high-strength biocompatible titanium wire rope and a preparation device and a preparation method thereof.The high-strength biocompatible titanium wire rope comprises multiple strands of twisted titanium alloy wires, the titanium alloy wires are coated with bioactive coatings through laser cladding, and the titanium alloy wires are prepared through the twisting technology of multi-layer interactive twisting combined with local weaving reinforcement. And under the combined action, the titanium alloy wire has ideal structural stability and high-strength performance. The titanium wire rope can accurately meet the diversified requirements of different medical scenes on the aspects of flexibility, strength, operation convenience and the like of instruments, the titanium wire rope can be excellently competent for both fine tissue suture and high-strength bone fixation, and richer and more efficient tool choices are provided for medical workers.

A bone fixation assembly includes a plurality of bone fixation elements that each include a bone anchor configured to be implanted into underlying bone, such as a vertebra. Each bone anchor is received in an anchor seat, and the anchor seats are joined by a fixation rod so as to operatively couple and fix the position and orientation of the vertebrae relative to each other. The bone anchor is free to rotate relative to the anchor seat, and is also free to pivot in a desired direction relative to the anchor seat.

A bone fixation system includes a first anchor, a second anchor, and a third anchor. The first anchor is configured to be inserted into a first target location within a bone. The first anchor including a first head and a first shaft that extends from the first head and is configured to couple the first anchor to the first target location. The first head defines a head bore extending therethrough along a head bore axis. The first shaft defines a shaft bore extending therethrough along a shaft bore axis. The second anchor is sized to extend through the head bore and out of the head bore so as to couple to a second target location within the bone. The third anchor is sized to extend through the shaft bore and out of the shaft bore to a third target location within the bone.

The utility model relates to the technical field of medical equipment, and discloses a nasal bone fixing clamp which comprises a clamping assembly, an inserting rod is arranged in the middle of the upper end of the clamping assembly, a pressing assembly is arranged at the upper end of the clamping assembly, an inner lining plate is arranged on the inner side of the lower end of the clamping assembly, an inner frame is arranged on the inner side of the lower portion of the inner lining plate, and a fixing assembly is arranged on the inner frame. And an embedded assembly is mounted below the inner frame in a sticking manner. According to the nasal bone fixing clamp, the embedded frame is arranged and filled with the adsorption cotton block, when the nasal bone fixing clamp is used for a long time, grease secreted by the nose can permeate the cloth liner firstly, the adsorption cotton block adsorbs the secreted grease, the lower cloth liner is kept dry and comfortable, during cleaning, the nasal bone fixing clamp is taken down, the cloth liner is taken down to be cleaned, and then the limiting rod is pulled out, so that the nasal bone fixing clamp is cleaned. The sealing plate is opened, the adsorption cotton block in the embedding groove is taken out for replacement, then the embedding frame is manually wiped through cotton swabs and alcohol, cleaning work can be completed, and the whole cleaning process is simpler and more convenient.

Systems and methods for fixing bone using an intramedullary nail locked to an encircling anchor including a bushing and a locking member. An exemplary system may include any combination of the nail, one or more bushings, one or more locking members, an instrument to guide installation of the bushing, at least one drill, and a driver that attaches to the bushing. The instrument may define a guide axis and be configured to be coupled to a bone such that the guide axis extends across the bone. The instrument may be used to guide a drill, the bushing, and / or the locking member along the guide axis into the bone. The nail may be configured to be placed along the medullary canal of the bone such that the nail extends through the bushing, and the locking member may be configured to lock the nail to the bushing.

An acetabular cub system is configured to be secured to a pelvis and may include an acetabular cup and a plurality of bone fasteners. The acetabular cup may include a bone engaging surface and an articulating surface, as well as a plurality of lobed fastener apertures extending from a first opening at the articulating surface to a second opening at the bone engaging surface. The plurality of bone fasteners may be insertable through the lobed fastener apertures to secure the acetabular cup to the pelvis. Each of the plurality of lobed fastener apertures may include a central aperture configured to receive a first bone fastener of the plurality of bone fasteners and one or more aperture lobes intersecting with the central aperture configured to receive a second bone fastener of the plurality of bone fasteners. The central aperture may be larger than the one or more aperture lobes.

The invention discloses a two-way fracture internal fixing device, and relates to the technical field of medical instruments, the two-way fracture internal fixing device comprises a fixing plate and fixing nails, the fixing plate is attached to the surface of a broken bone in the axial direction of the broken bone, two sets of fixing nails are arranged on the fixing plate, each set of fixing nails is connected with one broken bone, and a micro-motion gap is formed in the middle of the fixing plate; the micro-motion gap corresponds to the joint of the two broken bones, and the micro-motion gap enables the fixing plate to generate micro-motion deformation. The fixing plate can achieve variable rigidity in a micro-motion gap, then gap micro-motion adjustment at the joint of two broken bones is achieved, rigid fixation is converted into biological adaptation, anatomical structure adaptation and mechanical healing rule adaptation are achieved, enough micro-motion stimulation can be generated, the fracture healing cycle is met, bone reconstruction and development are promoted, and the fracture healing effect is improved. The structure is simple and exquisite, and carrying is convenient.

The artificial feather comprises a feather rod and two feather pieces, the feather rod is composed of a front section, a middle section and a tail section, front section feather leaves, middle section feather leaves and tail section feather leaves are arranged on the two sides of the front section, the two sides of the middle section and the two sides of the tail section of the feather rod respectively, and feather bone structures are further arranged on the two sides of the front section of the feather rod. The feather skeleton structure comprises a first feather skeleton and a second feather skeleton, one end of the first feather skeleton is fixed with the feather rod, and two ends of the second feather skeleton are respectively fixed with the feather rod and the first feather skeleton to form a triangular structure. According to the badminton disclosed by the utility model, the triangular feather skeleton structure enhances the support for the feather sheets, so that the badminton is more stable in flying, and the fatigue resistance is enhanced; meanwhile, the front-section feather leaf, the middle-section feather leaf and the tail-section feather leaf on the feather rod improve the bonding strength between the feather rod and the feather piece, the hair ring and the ball head, and the service life is prolonged.

The utility model provides a kind of intelligent bone external fixation support of micro motion, including tail box, control system, fixed sliding block and micro motion sliding block, tail box one end is equipped with connecting rod and micro servo electric jar, fixed sliding block is installed on connecting rod and position is adjustable, micro motion sliding block is slidably arranged on connecting rod, the telescopic end of micro servo electric jar is hinged with micro motion sliding block, for driving micro motion sliding block moves along connecting rod, fixed sliding block and micro motion sliding block are all installed with screw for fixing bone, force sensor for measuring the telescopic end of micro servo electric jar thrust and position sensor for measuring the telescopic displacement of telescopic end of micro servo electric jar are equipped on micro servo electric jar, control system is arranged in tail box, and respectively with micro servo electric jar, force sensor and position sensor electric connection.The utility model cooperates through control system, micro servo electric jar and sensor, can realize high-precision micro motion control, it is easy to operate and cost is reasonable.

The application relates to an orthopedic drilling device for preventing soft tissue injury, which comprises an inner cylinder and an outer cylinder; the inner cylinder is slidingly matched to the inner side of the outer cylinder, and a guide channel for a drill bit is formed in the inner cylinder; the bottom of the outer cylinder is provided with a positioning assembly for positioning the device on a target bone and a protection assembly for protecting soft tissues around the bone, and the outer wall of the outer cylinder is further provided with a fitting assembly for fitting a skin surface; a transmission assembly is arranged on the positioning assembly, and the transmission assembly is used for synchronously driving the protection assembly to outwardly expand in the stroke of a bone positioning action of the positioning assembly, so as to form a soft tissue shielding barrier around a drilling area. The application is used for realizing bone fixation and soft tissue protection through a mechanical linkage structure, and can improve the operation safety and accuracy and simplify the operation process.