179 results about "Bones fixation" patented technology

An example apparatus is provided for the approximation of two bones. The apparatus can include a nail configured to be disposed within a first bone (e.g., the fibula). The nail can include a proximal end, a distal end, and a rigid body. The apparatus can further include one or more first threads disposed along the proximal end of the nail, and one or more second threads disposed along the distal end of the nail. The first thread(s) can be axially spaced from the second thread(s).

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 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.

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 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.

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.

Distal tip designs for bone fixation devices are disclosed. In some embodiments, a system for bone fixation includes a delivery catheter having a proximal end and a distal end; an expandable member having a proximal region and a distal region, wherein the expandable member is releasably attached about the distal end of the delivery catheter at the proximal region of the expandable member; a distal cap attached to the distal region of the expandable member to seal the expandable member; a light conducting fiber; and a light-sensitive liquid; wherein the delivery catheter has an inner void for passage of a light-sensitive liquid into the expandable member to expand the expandable member and an inner lumen for passage of the light conducting fiber into the expandable member to cure the light-sensitive liquid inside the expandable member.

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.

This bone fixation member is fixed to a reception hole of a base member at a discretionary inclination angle within a prescribed range, and includes: a rod part that is inserted into the reception hole; and a head part that is insertion fit into the reception hole. The outer peripheral surface of the head part includes a plurality of pressure bonding outer peripheral surface sections that can pressure bond with the inner peripheral surface of the reception hole. The plurality of pressure bonding outer peripheral surface sections are each coordinated with different positions in the direction of a virtual axis and with different pitches in the circumferential direction of said axis.

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.

The invention provides a revision type total ankle joint prosthesis system, and belongs to the field of biomedical engineering. Comprising an ankle joint prosthesis body, the ankle joint prosthesis body comprises a tibia assembly, a talus assembly, a connecting embedded part located between the tibia assembly and the talus assembly and a bone fixing nail, the bone fixing nail is located on the outer walls of the sides, away from the embedded part, of the tibia assembly and the talus assembly, and a limiting assembly for preventing looseness and dislocation is arranged in the bone fixing nail; the tibia assembly comprises a tibia plate, a mounting slot is vertically formed in the side, close to the embedded part, of the tibia plate, and an inserting block connected with the mounting slot in a matched mode is arranged on the outer wall of the side, close to the tibia plate, of the embedded part. According to the ankle joint prosthesis, the tibia plate, the talus plate and the bone fixing nails can be independently installed and replaced, the bone fixing nails are connected in a clamped mode and are matched with the limiting assembly and the bevel gear to drive radial expansion, mechanical interlocking of bone tissue is enhanced, loosening is prevented, and the connection stability is ensured through the fastening design of the anti-loosening annular piece and the threads.

A bone plate incorporating a length adjusting elongate hole formed in a shaft portion thereof, along with corresponding methods of use. In one embodiment, the length adjusting elongate hole is configured to receive one or more bone fixation devices (e.g., bone screws). In use, the bone fixation device positioned within the length adjusting elongate hole may be partially loosened, without removal, to enable the patient's bone to be adjusted (e.g., loosening the bone fixation device within the length adjusting elongate hole allows the surgeon to adjust the position of the patient's bone, and hence the bone fixation device coupled thereto, relative to the bone plate). Once properly adjusted, the bone fixation device positioned within the length adjusting elongate hole may be retightened. In various embodiments, the length adjusting elongate hole is configured so that, in use, each of the plurality of bone fixation openings remains available to a surgeon.

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).

An embodiment includes a bone fixation system comprising: a bone anchor with a tapered head, the head being threaded; and a plate that includes a void, the void including one of a counterbore or a countersink; wherein: (a) no portion of the void is threaded; (b) the void includes an inner wall; (c) the inner wall includes reliefs along its perimeter. Other embodiments are described herein.

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.

To provide a bone fixation plate capable of tightly attaching the bone fixation plate and a subcutaneous tissue in surgery.SOLUTION: A bone fixation plate 10 according to the present invention is a bone fixation plate fixed to a cranial bone by a fixture, and includes a mesh structure having an opening 13 to which the fixture is inserted and a plurality of connection pieces 14. At least one connection piece among the plurality of connection pieces is a curved projection 15 curved so as to project from one surface to the other surface of the bone fixation plate.SELECTED DRAWING: Figure 1

A bone rivet is provided that may be used as an alternative to a bone screw for bone fixation. The bone rivet includes a head and a threaded shaft that can be expanded upon installing the bone rivet into bone. A channel extends through the bone rivet and is shaped corresponding to a bulb of a mandrel used for installing the bone rivet. A first section of the channel has a smaller width than the mandrel's bulb to enable the bulb to expand the threaded shaft and a second section is sized to have a greater width. The installation process eliminates the task of rotating a typical bone screw during its installation. The threaded shaft also includes a cutting flute, which cuts a thread path for the threaded shaft into the bone thereby reducing the amount of torque needed to rotate and remove the bone rivet from bone.

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.

A fastener, for example a bone screw, is sized to pass through a hole of an implant, for example a bone plate, the fastener having a shaft or anchor portion engageable with body tissue, and a head portion. A locking cap secures to the bone plate and covers the head to block the head and inhibit screw back out. Alternatively, or additionally, a locking disc located in the plate hole resiliently deflects downward to allow screw insertion, but is blocked to limit or prevent upward deflection so that screw back out is inhibited.

The present inventive subject matter is a bone fixation device where the distal end of the bone fixation device is affixed to the digit of a hand and the proximal end of the bone fixation device is connected to the a bone in the arm. There is a middle section between the proximal section and the distal section.