83 results about "Skeletal fixation" patented technology

The invention takes the form of a fixation system for bones with a force carrier (1) having holes (2, 3, 4), two of which are adjacent, and bone screws (36 to 41) adapted to be inserted into the holes (2, 3, 4) the heads of the bone screws (36 to 41) and the holes (2, 3, 4) being adapted to fixedly anchor the heads in the holes (2, 3, 4) wherein the two adjacent holes (2) are disposed on different sides of a zone of fracture or instability of a bone, wherein the force carrier (1) has reinforcements (5) at the holes (2) which are at the smallest distance from the zone of fracture or instability of bone and / or the bone screws (36 to 41) adapted to be inserted into said holes (2) have reinforcements, said reinforcements being dimensioned such that they are able to take up 50 to 60 percent of the total load on the fixation system, wherein the force carrier (1) have further reinforcements (6) at the holes (3) adjacent to the holes (2) mentioned first and / or the bone screws (36 to 41) adapted to be inserted into said holes (3) adjacent to the holes (2) mentioned first have further reinforcements, said further reinforcements (6) being dimensioned such that they are able to take up 20 to 30 percent of the total load on the fixation system and the force carrier (1) is provided with holes (4) which are required to be disposed at an even larger distance from the zone of fracture or instability of a bone, the last mentioned holes (4) and / or the bone screws (36 to 41) adapted to be inserted therein being dimensioned such that the last mentioned holes (4) and / or bone screws (36 to 41) are able to take up to rest of the total load on the fixation system.

A skeletal fixation apparatus includes: a plate having first and second spaced apart surfaces and a plurality of apertures extending through the surfaces of the plate, each aperture for receiving a respective fixation element for coupling the plate to one or more bones of a patient; and at least one retention element having an elongate member coupled to the plate at first and second ends thereof, wherein the first end of the elongate member is fixed in position and the second end of the elongate member is operable to rotate about the first end such that: (i) at least a portion of the elongate member overlies at least a portion of a first of the apertures when the second end is in at least one first rotational position to retain a first fixation element in the first aperture, and (ii) the elongate member does not substantially overlie the first aperture when the second end is in at least one second rotational position to permit the first fixation element to enter or exit the first aperture.

A connection system is provided that joins a revision fixation plate to a previously implanted skeletal fixation plate. In one form, the system allows the previously implanted plating system to be revised without disturbing the original implant components. In one aspect, the connection includes joining the revision fixation plate to a previously implanted fastener. In another aspect, the revision fixation plate is directly joined to a previously implanted fixation plate. In yet another aspect, the connection includes forming a dynamic relationship between the previously implanted plating system, the revision fixation plate, and the affected vertebrae. In one form, the dynamic relationship enables movement between the previously implanted plating system and the affected vertebrae and in another form, the dynamic relationship enables movement between the previously implanted plating system and the revision fixation plate.

An intramedullary nail (20) defining a bore (34) is inserted into a medullary canal (26) of a bone (24). A threaded fastener (22) has a compression portion (48) presenting a compression portion diameter (DCP) and a threaded portion (50) presenting a threaded portion diameter (DTP). The fastener (22) extends through a near cortex hole (40) and / or a far cortex hole (42), and the threaded portion (22) threadedly engages the bore (34). A compression transmission device (54) is disposed between a head (44) of the fastener (22) and the intramedullary nail (20) for transmitting the compressional load of the threaded fastener (22) to the intramedullary nail (20). An interior space of the compression transmission device (54) is greater than the compression portion diameter (DCP) providing space about the threaded fastener (22) for allowing the fastener axis (A) to be variously disposed relative to the interior space.

A connection system is provided that joins a revision fixation plate to a previously implanted skeletal fixation plate. In one form, the system allows the previously implanted plating system to be revised without disturbing the original implant components. In one aspect, the connection includes joining to a previously implanted fastener. In another aspect, the revision fixation plate is directly joined to a previously implanted fixation plate.

Techniques and reconstruction systems for fixation of bone to bone, or soft tissue to bone, that allow a double-bundle type construct with only three tunnels, a single graft and individual tensioning in each of the three tunnels. Alternative double-bundle ACL / PCL fixation techniques are provided that employ a double-bundle type construct with only a single graft and three tunnels / sockets. The double-bundle ACL and PCL techniques and constructs allow individual tensioning of each of the bundles (e.g., tensioning of each of the anteromedial (AM) and posterolateral (PL) bundles of the ACL) and eliminate the need for additional fixation devices (for example, interference screws) to secure the bundles within the bone tunnels / sockets.

An orthopedic plate and fastener system is provided for fixation of bones which has an implant that can selectably be used to achieve fixed angle and variable locking of the fasteners, as well as non-locking of the fasteners. The system includes a variable locking assembly that includes a locking insert, having threads which mates with internal threads of a through opening in the implant. The system also provides for locking fixed angle fixation, and non-locking variable angle fixation, all of which can be used with the threaded holes of the plates. The locking insert is provided on a ring driver, which is similar to or acts as the drill guide used with the locking fasteners of the present. Thus, the invention also relates to a method of enabling surgery where the surgeon can select the mode of fixation of fasteners between variable axis locking, variable axis non-locking, and fixed angle locking fixation, all utilizing the same fastener opening within the implant.

An orthopedic plate and fastener system is provided for fixation of bones which has an implant that can selectably be used to achieve fixed angle and variable locking of the fasteners, as well as non-locking of the fasteners. The system includes a variable locking assembly that includes a locking insert, having threads which mates with internal threads of a through opening in the implant. The system also provides for locking fixed angle fixation, and non-locking variable angle fixation, all of which can be used with the threaded holes of the plates. The locking insert is provided on a ring driver, which is similar to or acts as the drill guide used with the locking fasteners of the present. Thus, the invention also relates to a method of enabling surgery where the surgeon can select the mode of fixation of fasteners between variable axis locking, variable axis non-locking, and fixed angle locking fixation, all utilizing the same fastener opening within the implant.

A bone securement apparatus includes a bone plate configured and dimensioned to be applied across a joint of at least two bones or a space between at least two bone fragments. The bone plate includes first and second openings. A beaming member is configured to pass through the first opening, and the beaming member includes a third opening. A support member is configured to pass through the second opening and the third opening.

A skeletal fixation apparatus includes: a plate having first and second spaced apart surfaces and a plurality of apertures extending through the surfaces of the plate, each aperture for receiving a respective fixation element for coupling the plate to one or more bones of a patient; and at least one retention element having an elongate member coupled to the plate at first and second ends thereof, wherein the first end of the elongate member is fixed in position and the second end of the elongate member is operable to rotate about the first end such that: (i) at least a portion of the elongate member overlies at least a portion of a first of the apertures when the second end is in at least one first rotational position to retain a first fixation element in the first aperture, and (ii) the elongate member does not substantially overlie the first aperture when the second end is in at least one second rotational position to permit the first fixation element to enter or exit the first aperture.

Fixation system for bones with a connection support, at least one bone screw that can be inserted into a through hole of the connection support and a sensor and telemetry system, wherein the sensor and telemetry system is arranged on a separate plate, which can be connected with the connection support.

An intramedullary nail (20) for insertion into the medullary canal (26) in a bone (24) surrounded by the cortex (28) and defines a bore (34) extending transverse to the intramedullary nail (20). A threaded fastener (22) extends along a fastener axis (A) and has a compression portion (48) having a compression portion diameter (DCP), and a threaded portion (50) having a threaded portion diameter (DTP) extending through a near cortex hole (40) and a far cortex hole (42), both holes (40, 42) radially overlapping the bore (34) and the threaded portion diameter (DTP) threadedly engaging the bore (34). A compression transmission device (54) has an exterior (56) and an interior (58) and defines an interior space for transmitting the compressional load of the threaded fastener (22) to the intramedullary nail (20). The threaded fastener (22) extends through the compression transmission device (54) and the intramedullary nail (20) and the far cortex hole (42) for threadedly engaging the bore (34) and fixating the intramedullary nail (20) within the medullary canal (26). The interior space of the compression transmission device (54) is greater than the compression portion diameter (DCP) of the fastener (22) for providing space at least partially about the threaded fastener (22) for allowing the fastener axis (A) to be variously disposed relative to the interior space.

Internal bone fixation devices and methods for using the devices for repairing a weakened or fractured bone are disclosed herein. According to aspects illustrated herein, there is provided a device (700) for repairing a fractured bone that includes a delivery (710) having an elongated shaft (701) with a proximal end, a distal end, and a longitudinal axis therebetween, the delivery catheter (710) having an inner void (713) for passing at least one reinforcing material, and an inner lumen (711) for accepting a light pipe (652), wherein a distal end (723) of the inner lumen (711) terminates in an optical lens (754); a conformable member (703) releasably engaging the distal end of the delivery catheter (710), the conformable member (703) moving from a deflated state to an inflated state when the at least one reinforcing material is delivered to the conformable member (703); and an adapter releasably engaging the proximal end of the delivery catheter (710) for receiving the light pipe (652) and the at least one reinforcing material.

An intramedullary nail (20) defining a bore (34) is inserted into a medullary canal (26) of a bone (24). A threaded fastener (22) has a compression portion (48) presenting a compression portion diameter (DCP) and a threaded portion (50) presenting a threaded portion diameter (DTP). The fastener (22) extends through a near cortex hole (40) and / or a far cortex hole (42), and the threaded portion (22) threadedly engages the bore (34). A compression transmission device (54) is disposed between a head (44) of the fastener (22) and the intramedullary nail (20) for transmitting the compressional load of the threaded fastener (22) to the intramedullary nail (20). An interior space of the compression transmission device (54) is greater than the compression portion diameter (DCP) providing space about the threaded fastener (22) for allowing the fastener axis (A) to be variously disposed relative to the interior space.

An intramedullary nail (20) for insertion into the medullary canal (26) in a bone (24) surrounded by the cortex (28) and defines a bore (34) extending transverse to the intramedullary nail (20). A threaded fastener (22) extends along a fastener axis (A) and has a compression portion (48) having a compression portion diameter (DCP), and a threaded portion (50) having a threaded portion diameter (DTP) extending through a near cortex hole (40) and a far cortex hole (42), both holes (40, 42) radially overlapping the bore (34) and the threaded portion diameter (DTP) threadedly engaging the bore (34). A compression transmission device (54) has an exterior (56) and an interior (58) and defines an interior space for transmitting the compressional load of the threaded fastener (22) to the intramedullary nail (20). The threaded fastener (22) extends through the compression transmission device (54) and the intramedullary nail (20) and the far cortex hole (42) for threadedly engaging the bore (34) and fixating the intramedullary nail (20) within the medullary canal (26). The interior space of the compression transmission device (54) is greater than the compression portion diameter (DCP) of the fastener (22) for providing space at least partially about the threaded fastener (22) for allowing the fastener axis (A) to be variously disposed relative to the interior space.

The present application provides external bone fixation systems. The systems include one or more pairs of bone fixation platforms in the form of rings or partial rings. The platforms may be coupled to corresponding bone segments. The pair of platforms are configured to accept a plurality of struts extending therebetween. The struts are configured to attach to the platforms via joints that provide three degrees of rotation. The struts are also configured such that their longitudinal length extending between the joints / platforms can be incrementally adjusted while attached to the platforms. The struts are further configured such that their total range of length adjustment can be increased by coupling at least one add-on component to the struts in situ. The lengths of each of the plurality of struts may be adjusted to arrange the platforms, and thereby the bone segment coupled thereto, in particular relative positions and orientations.

The invention provides a skeletal fixation device, comprising an expansion unit and a cladding unit. The expansion unit is provided with an expansion unit first end and an expansion unit second end, and comprises more than two expansion structures. The expansion structure can be switched between an expansion state and a contraction state. The cladding unit is used to wrap the expansion unit, and comprises a cladding unit first end and a cladding unit second end. The cladding unit first end is fixed on the expansion unit first end. The cladding unit second end is fixed on the expansion unit second end. When the skeletal fixation device is put in a bone, the expansion structure of the expansion unit is switched to the expansion state and stretches over the cladding unit, and a medical filler is filled in the cladding unit through the expansion unit second end.

A minimally invasive skeletal fixation device includes two curved tubes and two positioning members. The two curved tubes are attached to each other and are in communication with each other. The positioning members are coupled to the curved tubes. The device is applicable to surgical operations for treating bone factures and offers the advantages of small incision size, simple structure, easy operation, improved performance of surgical operation, and flexible adjustment of installation sites of Kirschner pins.

A connection system is provided that joins a revision fixation plate to a previously implanted skeletal fixation plate. In one form, the system allows the previously implanted plating system to be revised without disturbing the original implant components. In one aspect, the connection includes joining the revision fixation plate to a previously implanted fastener. In another aspect, the revision fixation plate is directly joined to a previously implanted fixation plate. In yet another aspect, the connection includes forming a dynamic relationship between the previously implanted plating system, the revision fixation plate, and the affected vertebrae. In one form, the dynamic relationship enables movement between the previously implanted plating system and the affected vertebrae and in another form, the dynamic relationship enables movement between the previously implanted plating system and the revision fixation plate.

The invention relates to a comprehensive automatic bone adjustment fixing support used by a doctor in the department of orthopedic surgery and belongs to the technical field of medical apparatuses and instruments. The comprehensive automatic bone adjustment fixing support comprises a U-shaped clamping device body, an extensible rotary mechanical arm and an internally-buckled connecting sleeve and is characterized in that a reinforcing plug moving hole is formed in the U-shaped clamping device body, a reinforcing stud is arranged in the reinforcing plug moving hole, a reinforcing plug is arranged on the lower side of the reinforcing stud, a parallel force exerting connecting plate is arranged on the reinforcing stud, and a rotary positioning hole is formed in the parallel force exerting connecting plate. The comprehensive automatic bone adjustment fixing support is complete in function and convenient to use and is capable of saving time and labor, scientific, quick and convenient to use, safe, efficient and flexible in use when conducting local bone positioning and fixing on a patient in the department of orthopedic surgery, and the working difficulty of medical workers is reduced.

The invention discloses a thread driving type force arm orthopedics traction device, which comprises a handhold rod and supporting pillars; the outside of the middle of the handhold rod is sleeved with an anti-slide sleeve, left and right sides of the handhold rod are symmetrically provided with the supporting pillars; the lower ends of the supporting pillars are fixed with supporting plates, andthe supporting plates are used for facilitating the vertical placement of the device; driving cavities are not arranged in the supporting pillars, and the inner parts of the driving cavities are vertically provided with lifting screw bars; the upper ends of the lifting screw bars are connected and fixed with the output ends of lifting motors, and the lifting motors are fixed at the top parts in the driving cavities; the lower ends of the lifting screw bars are rotationally connected with the bottom parts of the driving cavities; left and right supporting pillars are glidingly provided with lifting slide blocks towards the opposite face. The thread driving type force arm orthopedics traction device is simple and reasonable in structure, and facilitates the skeletal fixation, reduces the pain in treatment, and is good for improving the working efficiency of workers; the thread driving type force arm orthopedics traction device is strong in practicability.

The invention relates to a clamp fastener used as a skeletal fixation plate, characterized in that the clamp end of a handle is provided with a clamp block and a pressure lever; two perforated grooves are arranged in the clamp block; a tenaculum and the pressure lever are respectively arranged in the two grooves and are moveably connected with the clamp block; the grip end of the handle is provided with an upper grip arm and a lower grip arm between which a rack is arranged. When in use, a lock plate is inserted into a limited incision and the tenaculum is also inserted into the incision to hook the inside skeleton, and then the tenaculum is locked on the clamp fastener, the pressure lever is made to prop up the lock plate, and the grip end of the handle keeps being pressed to fix the lock plate and the skeleton; the rack arranged at the grip end of the handle can tightly lock to keep the fixation state, ensuring the tight joint of the lock plate and the skeleton, thereby the fracture fixation effect can be improved, the fixation technique can be simplified and the fracture reduction operation can meet the mini-incision needs.

A method for fixing bone in orthopaedic repair operation includes such steps as primary location of fractured bone at the fixing position, installing the fixing nails, deforming the end of said nails for fixing it at the internal side of bone, and using the nail cap to connect the bone to the fixing plate. Said nail features that the deformation at its end is controllable.

The invention provides a hand bone fixer which comprises a wrist restraining device, a palm fixer and a bone surface fixing component, wherein the wrist restraining device comprises a wrist fixing ring and an arm wrapping plate; the arm wrapping plate is rotatably connected with the palm fixer by virtue of the wrist fixing ring; the bone surface fixing component is arranged between two supporting components of the palm fixer; the bone surface fixing component comprises fixing blocks arranged on a fixing rod; fixing cables are arranged among the fixing blocks; the bone surface fixing component is capable of realizing skeletal fixation by virtue of a skeletal fixation frame consisting of a plurality of fixing cables contacted with a bone surface.

The invention discloses a method for manufacturing a PEEK bone fixation part containing carbon fiber filaments through heat flow die casting. The method is characterized by successively comprising: animplantation-level PEEK material of a powder shape, a film shape or a fabric shape is heated and melted as a substrate and then mixed with the carbon fiber filaments for curing, a rod material, a sheet material or a tubular precast sectional material is formed to manufacture a precast sectional material which is then cut according to a needed length, the cut precast sectional material is added toa heated lead-in tube, the precast sectional material is softened and ejected to a heated die, the die is full of the material, gradual cooling and complete curing care carried out after a continuoushigh-pressure treatment, die release is carried out, de-burring is carried out, and a finished product is obtained after the product passes an inspection. The heat flow die casting technology is usedfor manufacturing the carbon fiber filaments with a high carbon fiber content to reinforce a PEEK material bone implant. The novel bone implant integrates good mechanical properties, biocompatibilityperformance and imaging features and can be widely applied to the medical field. Through the heat flow die casting technology, multiple novel bone implants can be manufactured.