346 results about "Bone fixation" patented technology

The present disclosure discloses a limb bone fixation system capable of automatically transforming from AO (Association for Study of Internal Fixation) to BO (Bio-logical Osteosynthesis) elastic fixation. The system includes a bone nail, a bone bridge, and connecting pieces attached to the bone bridge. The bone bridge is divided into a plate-shaped bone bridge and a rod-shaped bone bridge. A gasket made of a rigid degradable biomaterial is added between all connecting pieces at a broken end of one side of a fracture and the bone bridge, which can form rigid fixation for the fracture at initial fixation.

A bone fixation plate comprises a main body formed of a first material and a support member formed of a second, different material and attached to the main body. The main body defines a first set of openings and the support member defines a second set of openings aligned with the first set of openings. For each opening of the first set of openings, a main body circumferential surface is disposed adjacent and continuous with a support member circumferential surface of the second set of openings to define an opening circumferential surface that bounds an opening of the first set of openings and an opening of the second set of openings.

Implants, guides, devices, instruments, systems and methods for fixing a joint using bone plates are disclosed. The bone fixation system includes an alignment guide with a first end and a second end, an alignment wire rotatably coupled to the first end of the alignment guide, and a coupling member slidingly engaging a first portion of the alignment guide near the first end. The plate includes a body including a first end and a second end, a plurality of lobes extending from the body, a plurality of screw holes extending through the body and each screw hole of the plurality of screw holes positioned in a lobe of the plurality of lobes, and an alignment hole positioned along a longitudinal axis of the body. A method of using a bone fixation system for fixation of at least two bones is also disclosed.

Bone fusion system, plate system, guide, implant, kit and methods for using the bone fusion system, plate system, guide and implant are disclosed. The bone fusion system includes an alignment guide, an implant, and at least one fastener inserted through the implant. The alignment guide includes a body portion, a first lobe positioned at a first end of the body portion, a second lobe positioned at a second end of the body portion, and an extension member extending away from a first side of the body portion. The implant includes a body portion, a first arm extending away from the body portion in a first direction, a second arm extending away from the body portion in a second direction, and a third arm extending away from the body portion laterally between first and second arms. Finally, methods for using the bone fusion system, plate system, guide and implant are disclosed.

A fusion plate (1, 20) to assist fusion of a first bone (2) and second bone (3) comprising a rigid elongated plate configured to span the joint between the first and second bones having a C-shaped profile along its length, a thickness of 0.5 to 1.5 mm, and a plurality of holes (11) to receive bone-fixing screws (12) to fix the plate to the first and second bones, wherein the plurality of holes include at least one proximal hole disposed on each side (9, 10) of a proximal end (7) of the plate configured to receive proximal bone fixing screws (12) in an orthogonal fixing screw configuration and at least one hole disposed on each side (9, 10) of a distal end (8) of the plate configured to receive distal bone fixing screws in an orthogonal fixing screw configuration. The plate may be configured for dorso-medial attachment and fusion of a meta-tarsal joint selected from a MetaTarsoPhalangeal joint (MTPJ) and a TarsoMetaTarsal Joint (TMTJ) of the big toe.

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.

Logic may interact with a user to generate or modify a code block of adjustments for a prescription or interact with the user via two-dimensional or three-dimensional image(s) to generate or modify a correction path of the treatment plan for a bone fixator. Logic may generate the prescription based on a deformity correction associated with a code block or based on a deformity correction identified by the user by modifying existing waypoints and / or adding new waypoints to the correction path. Logic may generate a display of an image of a fixed and a moving bone segment connected to the bone fixator and adjust the display to show a state of the bone deformity and the bone fixator at a point in time of the prescription selected by the user. And logic may display the remaining bone deformity for correction for the user during generation or modification of the correction path.

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.

TPLO plate includes first and second distal holes and a body with a proximal portion positioned over a proximal tibia segment and a distal portion extending along a longitudinal axis and positioned over a distal tibia segment. The first hole includes an elongated portion extending along the longitudinal axis and an offset portion extending distally from the elongated portion along an offset axis at an angle relative to the longitudinal axis. The second hole extends through the distal portion along the longitudinal axis in alignment with the elongated portion and includes a sloped compression surface along a distal portion. The first hole is such that, when a distal compression to osteotomy cut is applied via insertion of a bone fixation element into the distal portion, the element translates along the offset axis from a central axis to an intersection point to provide a cranial compression to the cut.

A bone fixation plate may include a first end and a second end opposite and spaced apart from the first end along a longitudinal axis. The bone fixation plate further includes a first surface extending from the first end to the second end and a second surface opposite from the first surface. The bone fixation plate further includes a network of interstices disposed between the first surface and the second surface. The plurality of interstices is provided based on a stiffness matching system and method with respect to an underlying bone or a virtual surgical model thereof. The bone fixation plate further includes a plurality of screw holes defined by and extending through the bone fixation plate from the first surface to the second surface.

The utility model discloses a bone fixing splint device, and particularly belongs to the technical field of bone tumor adjuvant therapy, the bone fixing splint device comprises a main fixing plate attached to the outer side of a knee, an auxiliary fixing plate attached to the inner side of the knee and a connecting bandage, and the connecting bandage is sequentially fixed with the main fixing plate and the auxiliary fixing plate. The bone fixing splint device further comprises a fixing splint assembly attached to the front side and the rear side of the knee, the fixing splint assembly comprises a bottom plate, an extension plate and a locking piece used for positioning the extension plate, a sliding groove matched with the extension plate to slide in a telescopic mode is formed in the middle of the bottom plate, and the bottom plate is fixed to the connecting bandage. The bone fixation splint device can adjust the lengths of the front and rear splints of the knee under the condition of fixing the two sides of the knee, so that the aim of not influencing the knee joint movement of a patient is fulfilled.

A system and methods are provided for an MIS ankle fusion plate and targeting guide for fixating the tibiotalar joint. The MIS ankle fusion plate comprises an upper portion that includes a tibial slot and cylindrical notches disposed on opposite edges of the upper portion. Tibial fixation holes are positioned above and below the tibial slot. The tibial fixation holes receive locking screws that fixate the fusion plate to the tibia. A lower portion of the fusion plate includes two talar fixation holes that receive locking screws to fixate the fusion plate to the talus. The targeting guide includes a plate guide portion for fixedly coupling with the fusion plate. Medial and lateral arms each join a targeting guide array with the plate guide portion. The targeting guide arrays are configured to support wire guides that facilitate establishing vectors for medial and lateral posterior fusion screws.

A bone fixation system comprises a first fastener configured to anchor into a first vertebrae, a second fastener configured to anchor into a second vertebrae, and a set screw to retain the second fastener to the first fastener. The first fastener includes a shaft extending along a longitudinal axis and a head. The shaft includes a first cylindrical body. The head of the first fastener includes a second cylindrical body defining a passageway having an interior surface. The passageway defines a longitudinal axis that is different than the longitudinal axis of the shaft. The first cylindrical body of the shaft and the second cylindrical body of the head are angled relative to each other. A head of the second fastener is configured to engage the interior surface of the passageway of the head of the first fastener. The set screw retains the head of the second fastener in the passageway.

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.

Bone fixation systems for use with fractured bones having at least one fragment are disclosed, along with kits and systems containing same, as well as methods of production and use thereof. The bone fixation systems include a bone anchor that matingly engages with an opening in a bone plate and that has a cannula extending through at least a portion of the bone anchor. The bone fixation systems also include at least one elongated member that is configured and adapted to extend between the interior of the bone anchor and an outer surface of the bone to embrace and / or anchor the at least one bone fragment in place against the remainder of the fractured bone.

The utility model relates to the field of medical instruments, in particular to a memory alloy rib prosthesis fixator. The two ends of the memory alloy rib prosthesis are respectively sleeved with a memory alloy rib fixator, each memory alloy rib fixator comprises a bone fracture plate body, a bone fracture plate cross beam, bone fracture plate embracing arms and bone fracture plate end teeth, the bone fracture plate body is composed of the bone fracture plate cross beam and the bone fracture plate embracing arms, the bone fracture plate cross beam is provided with a plurality of groups of bone fracture plate embracing arms, and the bone fracture plate end teeth are arranged on the bone fracture plate embracing arms. The multiple sets of bone fracture plate embracing arms are connected with the memory alloy rib prosthesis and an affected bone in an embracing mode respectively, bone fracture plate end teeth are arranged at the two ends of the bone fracture plate cross beam, the bone fracture plate end teeth at one end buckle the memory alloy rib prosthesis, and the bone fracture plate end teeth at the other end buckle the affected bone. After the memory alloy rib bone fracture plate is implanted into a human body, the memory alloy rib bone fracture plate continuously embraces and pressurizes at the body temperature, looseness caused by bone healing is avoided, and the phenomenon that human bones are hurt when a thread structure is implanted into or screwed into the bones can be avoided through the design without screw matching.

The present invention is directed an anchor assembly for use in spinal fixation to interconnect a longitudinal spinal rod with a patient's vertebra. The anchor assembly preferably includes a bone anchor, a body with a rod-receiving channel, an insert member (preferably a bushing), and a locking cap with a saddle. The anchor assembly preferably enables in-situ assembly where the bone anchor may be secured to the patient's vertebra prior to being received within the body of the bone anchor assembly. Accordingly, the anchor assembly enables a surgeon to implant the bone anchor without the body to maximize visibility and access around the anchoring site. Once the bone anchor has been secured to the patient's vertebra, the body may be snapped onto the bone anchor and a spinal rod may be inserted into the rod-receiving channel.

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 assembly includes a bone plate, a first bone screw and a second bone screw. The first and second bone screws penetrate through two holes respectively. The first bone screw has a left-handed thread while the second bone screw has a right-handed thread. With different thread directions of the bone screws, the bone screws are hard to be loosened so that broken bones are fixed firmly. Accordingly, size of the bone plate is able to be reduced for miniaturization.

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.

Embodiments of a multi-clamp apparatus for an orthopedic exterior fixator are disclosed. One embodiment of the multi-clamp apparatus has two clamp arms, each having a plurality of opposing crescentic channels that, when pressed together, are of a length, size, and shape to engage and secure a plurality of bone pins. An outrigger bar extends from each of the clamp arms for attachment of fixator components. Each clamp arm has a collapsible torque amplifying knob that can be hand operated and that causes relative movement of the two clamp arms for concurrently clamping and unclamping multiple bone pins when rotational force is applied to one or both of the knobs. The turn levers of each knob can be collapsed in a generally mating, 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.

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.

An apparatus and a method are provided for a surgical bending instrument for bending surgical implants. The surgical bending instrument comprises a body including a longitudinally extending threaded hole. A shaft comprising a threaded portion is rotatably engaged within the threaded hole. A handle is coupled to a proximal end of the shaft, and a distal extension of the shaft comprises a driver. A distal force applicator comprises the driver centered between a first grip and a second grip. In some embodiments, the distal force applicator is configured to retain a surgical staple, such that the surgical staple may be changed to a distracted configuration suitable for implantation at a bone fixation or fusion site of a patient. In some embodiments, the distal force applicator is configured to bend a bone fusion plate so as to tailor the plate to specific anatomy of the patient's bone.

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.

Apparatus and methods are described for use in securing a first bone relative to a second bone using a pair of surgical staples or, alternatively, a surgical staple and a bone screw. When a pair of staples are used, one of the legs of one of the staples may pass between the legs of the another of the staples. When a staple and a bone screw are used, the bone screw may pass between the legs of the staple. A guide tool can be used during the drilling of the holes for the legs of the staples or the legs of the staple and a bone screw. The guide tool provides guides for drilling guide holes for the staples or for the screw and staple.

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