177 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.

A bone fixator as disclosed herein includes at least one removable portion, and is particularly suitable for external fixation of the bones of the femur and tibia (knee joint), the tibia to the foot (ankle joint), the lower leg, the lower thigh, or the forearm and hand. Embodiments allow multiaxial, multiplanar movement, as well as procurvatum and recurvatum, on the anatomy to achieve optimal placement. Embodiments of the fixator includes four fixator joints, each of which is articulating with multiple degrees of freedom. Some fixator joint(s) include a linkage bar connectable to a multi-pin clamp having a quick connect mechanism. The multi-pin clamp is configured for fixation to a bone. Other fixator joint(s) may be connected to the multi-pin clamp in a semi-permanent or non-detachable manner. A telescoping rod assembly allows adjustment of the length of the fixator by a single individual.

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.

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.

A device for use in orthopedic procedures involving the alignment and fixation of bone. The device includes a body having a bone facing surface, an opposing surface, a lateral surface being disposed between the bone facing surface and the opposing surface and a longitudinal axis extending through the bone facing surface and the opposing surface. The body defines a pin hole extending through the body from the bone facing surface to the opposing surface, a bone fastener hole extending through the body from the bone facing surface to the opposing surface, a tool hole extending at least partially through the body and an alignment index for positioning the body relative to bone.

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 bone fixation assembly is disclosed. The bone fixation assembly includes a bone fixation plate with a fastener hole adjacent to a cavity. The bone fixation assembly also includes a clip including a body positioned at least partially in the cavity and a plurality of tabs extending inward from the body. The bone fixation assembly also includes a fastener with a fastener body having screw threads and a head extending from the fastener body to a first end of the fastener. The head includes a recess extending into the head from a first surface at the first end of the fastener, and further includes a backout groove that spirals around a tapered portion of the head in a direction from the first end of the fastener toward the fastener body of the fastener.

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.

The invention concerns a distal radius fracture fixation device for securing at least two fractured bone segments together. The device comprises: a body portion comprising at least two insertion channels each extending through the body portion and each being configured for receiving a bone fixation element therethrough; and an insertion device connection portion connected to the body portion, and for coupling a separate insertion device to the fracture fixation device. The insertion device connection portion is arranged to be decoupled from the body portion.

A device may be configured to convert an angle to a distance to assist with securing a bone fixation plate during a surgical procedure. The device may include a body. The body may include (e.g., define) an elongated first portion and / or a second portion. The elongated first portion may include at least one aperture. The at least one aperture may be configured to receive a wire and / or a screw. The second portion may include angular indicia. The device may include an arm. The arm may be rotatably coupled, for example to the body. Additionally, or alternatively, the arm may be rotatably coupled at a rotation point.

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.

Implants for the fusion or fixation of two bone segments are described. For example, the implants can be used for the fusion or fixation of the sacroiliac joint. The implants can include fenestrations, have a rectilinear overall cross-sectional area, and have a curvature. Some implants can also be used to rescue failed implants.

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.

A bone fixation assembly is disclosed. The bone fixation assembly includes a bone fixation plate with a fastener hole adjacent to a cavity. The bone fixation assembly also includes a clip including a body positioned at least partially in the cavity and a plurality of tabs extending inward from the body. The bone fixation assembly also includes a fastener with a fastener body having screw threads and a head extending from the fastener body to a first end of the fastener. The head includes a recess extending into the head from a first surface at the first end of the fastener, and further includes a backout groove that spirals around a tapered portion of the head in a direction from the first end of the fastener toward the fastener body of the fastener.

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 configured to capture epiphyseal bone in the one of the foot and / or ankle bone. Related methods are also provided.

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.