189results about "Toe joints" patented technology

An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members. In addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first compressibility and the second layer has a second compressibility, wherein the second compressibility is greater than the first compressibility. Further, an interface between the first layer and the second layer is a transition region having a thickness within which the elongate curved structural members of the first layer are intermingled with the elongate curved structural members of the second layer such that a boundary of the first layer overlaps with a boundary of the second layer.

Assemblies and methods for fixation of bone or bone fragments using an orthopedic plate, a modular peg, and a compression screw. The modular peg is screwed into one of the apertures of the orthopedic plate. The modular peg may include an aperture having screw threads designed to receive the threads of the compression screw and serve as an anchor for the compression screw. By rotating the compression screw in relation to the modular peg, the compression screw may advance through the aperture of the modular peg, drawing the head of the screw toward the modular peg, and compressing the bone or bone fragments.

A system for bone fusion incudes an implant configured to be attached to two bone portions; an insertion handle attached to the implant by a threaded drill guide and including a stability screw trajectory guide portion and an implant screw guide portion; and a stability screw configured to pass through the stability screw trajectory guide portion and into the two bones.

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.

The invention relates to the technical field of orthopaedic prostheses, and provides an orthopaedic prosthesis implantation assisting device and a control method thereof.The orthopaedic prosthesis implantation assisting device comprises a first fixing part, a second fixing part and a third fixing part, the first fixing part comprises a plurality of metatarsal bone fixing devices, and the metatarsal bone fixing devices are used for fixing metatarsal bones; the second fixing part is rotatably arranged at one end of the first fixing part around a first axis, and the second fixing part is used for clamping and moving the proximal phalanx; and the third fixing part is movably arranged at the other end of the first fixing part, and the third fixing part is used for fixing the rear part of the foot. According to the auxiliary device for implantation of the orthopaedic prosthesis, the technical problem that in the related technology, when the orthopaedic prosthesis is implanted into the metatarsophalangeal joint, all foot bones may move, so that the implantation position of the prosthesis deviates, and the implantation effect of the prosthesis is affected can be solved.

An instrument system includes a first cut guide and an actuation instrument. The actuation instrument includes an upper portion having a handle and a first cannulation, and a lower portion releasably couplable with the upper portion. The lower portion includes a shaft, a second cannulation, wherein the second cannulation is coaxial and in fluid communication with the first cannulation, and a paddle configured to abut a resected surface of a first bone. The instrument system also includes a compression mechanism releasably couplable with the lower portion, the compression assembly couplable with the first bone and a second bone The compression assembly includes an actuator configured to bias at least one of the first bone and the second bone toward the other of the first bone and the second bone. A method for using the instrument system is also disclosed herein.

In various embodiments, an implant for interfacing with a bone structure includes a web structure including a space truss. The space truss may have a plurality of struts joined at nodes and the web structure is configured to interface with human bone tissue. At least some struts may form an irregular pattern in the web structure. The space truss may include two or more planar truss units having a plurality of struts joined at nodes.

An orthopedic implant includes an upper portion, a central portion having a greater lateral dimension than that of the upper portion, and a lower portion having a greater lateral dimension than the central portion. The upper portion, the central portion and the lower portion each may have at least one fixation aperture. Further, the upper portion, the central portion and the lower portion may each be non-linear and / or curved relative to at least one plane. An instrument having a body that includes a housing. The body includes a platform, at least one retention mechanism for holding the implant on the platform, an adjustment mechanism to adjust the height of the platform relative to the top surface of the housing, and a lid coupled with the housing with the top surface of the housing and the lid defining a slot configured to receive a cutting instrument.

Systems, methods, and devices described herein relate an implant adapted to be placed in a bone in the metatarsophalangeal joint or a metacarpophalangeal joint. In some embodiments, the implant includes a head portion extending from a first surface to a second surface and having a plurality of layers located between the first surface and the second surface. In some embodiments, the first surface is lubricious. In some embodiments, the implant comprises a post portion extending from the second surface of the head portion to a bone facing surface.

Expandable wedge implants and related methods. The expandable implant may include a bottom endplate, a top endplate pivotably connected to the bottom endplate, an actuator with curved ramps configured to mate with angled ramps on the top endplate, and a drive screw configured to move the actuator to thereby expand the top endplate relative to the bottom endplate. The expandable implants may be configured to correct pes planus or a flatfoot deformity using Evans and / or Cotton procedures during foot surgery.

A calcaneal plate inserter tool includes a body portion, a plate retainer assembly coupled to the body portion, a sled coupled to the body portion and movable relative to the body portion, and a lock coupled to the body portion. The lock is operable between a lock position and an unlocked position. The lock impedes movement of the sled relative to the body portion when in the lock position. The sled also includes a guide portion.

There is a process for correcting a bone injury, an implant for correcting the bone injury and a kit for applying the implant for correcting the bone injury. The process can be made substantially uniform with the application of a standardized kit. In at least one application the process is for correcting a bunion on a patient. The process can include applying a first drill guide to a bone, and then a second drill guide. Once the drill guides have been applied and wires have been inserted into a bone, an implant can then be applied to correct a bone injury and to allow the bone injury to heal.

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implant are optimized for the expected stress applied at the bone structure site.

Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the femorotibial joint, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint.

Various embodiments of implant systems and related apparatus, and methods of operating the same are described herein. In various embodiments, an implant for interfacing with a bone structure includes a web structure, including a space truss, configured to interface with human bone tissue. The space truss includes two or more planar truss units having a plurality of struts joined at nodes. Implant are optimized for the expected stress applied at the bone structure site.

Devices, systems and methods for surgical treatment of mid-foot disorders such as osteoarthritis, spacing disorders, or alignment disorders, including mid-foot arthroplasty devices and systems for the 2nd and 3rd tarsometatarsal (TMT) joint, implants for post-osteotomy spacing and+ realignment, arthroplasty articular implants, dowel grafts for TMT arthrodesis or fusion, dowel grafts for navicular cuneiform (NC) arthrodesis, dowel grafts for intercuneiform arthrodesis, and / or locking dowels for joint fusion.

A surgical guide for osteosynthesis surgery is disclosed. The surgical guide includes a guide body comprising a head and a base, the head extending from one end of the base. The surgical guide also includes a guiding portion allowing the surgical guide to be positioned on a targeting wire inserted into a bone and a locking device configured to secure the surgical guide on the targeting wire when the surgical guide is positioned on the targeting wire. The surgical guide also includes a targeting arm adapted to cooperate with the base of the guide body so as to be displaceable relative to the guide body, the targeting arm having at a distal end thereof at least one opening for supporting the at least one guiding wire.

The present application relates to the technical field of orthopedic prostheses, and provides an orthopedic prosthesis implantation auxiliary device and a control method thereof, wherein the orthopedic prosthesis implantation auxiliary device comprises: a first fixing portion, wherein the first fixing portion comprises a plurality of metatarsal fixing devices, wherein the metatarsal fixing devices are used to fix the metatarsals; a second fixing portion, which is rotatably arranged at one end of the first fixing portion around a first axis, wherein the second fixing portion is used to clamp and move the proximal phalanx; and a third fixing portion, which is movably arranged at the other end of the first fixing portion, wherein the third fixing portion is used to fix the hind part of the foot. The orthopedic prosthesis implantation auxiliary device provided in the present application can improve the technical problem existing in the related art that when an orthopedic prosthesis is implanted at the metatarsophalangeal joint, each foot bone may move, resulting in a deviation in the implantation position of the prosthesis, thereby affecting the implantation effect of the prosthesis.

In one aspect, an implant configured to attach a first bone section to a second bone section comprises an intramedullary portion and an extramedullary portion. The intramedullary portion is configured for insertion into the first bone section. The extramedullary portion is configured to abut a surface of the second bone section and includes a first fastener aperture configured to receive a bone fastener inserted in the second bone section. The intramedullary portion and the extramedullary portion are coupled such that the extramedullary portion is rotatable with respect to the intramedullary portion.

The present disclosure relates to an implant having a proximal portion, a distal portion and a central portion positioned between the proximal portion and the distal portion. The implant further includes a longitudinal axis with the proximal portion, the distal portion and the central portion being centered along the longitudinal axis. Further disclosed is an implant system that includes an implant having a proximal portion including an opening, a distal portion including a threading, a tip, and a tapping feature at the tip, and a central portion having at least one flat on an outer surface The central portion is disposed between the proximal and distal portions. The implant system also includes an insertion instrument configured to be releasably coupled with the implant.

A sacroiliac joint implant is formed from a web structure having a space truss with two or more planar truss units having a plurality of struts joined at nodes. The web structure is configured for fusion of a sacroiliac joint.

The invention relates to a resorptive intramedullary implant between two bones or two bone fragments. The implant includes a single-piece body (1) having a generally elongate shape and having, at each end, areas for anchoring to the bone portions in question, characterized in that one of said areas (A1) has a cylindrical cross-section while the other area (A2) has a flat cross-section.

A method of securing bones for fusion includes positioning an implant guide sleeve on a first bone, a second bone, and across a separation between the first bone and the second bone, the method further includes using the implant guide sleeve to guide creation of a first implant hole in the first bone and to guide creation of a second implant hole in the second bone, aligning an inserter operably connected to the implant with the implant guide sleeve, and advancing the inserter relative to the implant guide sleeve to position the implant in contact with the first bone and the second bone, wherein the implant bridges the first bone and the second bone.

The orthopedic implant includes an upper portion, a central portion having a larger lateral dimension than the upper portion, and a lower portion having a larger lateral dimension than the central portion. Additionally, each of the upper portion, central portion, and lower portion may be non-linear and / or curved in at least one plane. The instrument has a body including a housing. The body includes a platform, at least one retention mechanism for retaining the implant on the platform, an adjustment mechanism for adjusting the height of the platform relative to a top surface of the housing, and a lid coupled to the housing, where the top surface of the housing and the lid define a slot configured to receive a cutting instrument.

An implant comprises a unitary body including an intramedullary portion connected to an extramedullary portion. The unitary body is configured to attach a first bone section to a second bone section. The intramedullary portion has a first longitudinal axis, and is configured for insertion into the first bone section. The intramedullary portion includes at least one first fastener aperture having an aperture axis oriented obliquely relative to the first longitudinal axis. The extramedullary portion is configured to abut a surface of the second bone section and includes at least one second fastener aperture disposed to transversely receive a bone fastener inserted in the second bone section. The extramedullary portion has a second longitudinal axis offset from, the first longitudinal axis.

A method of modifying a bone surface for receiving an implant includes: positioning a contour guide at a first bone and a second bone and across a separation between the first bone and the second bone; using the contour guide to modify a surface region of at least one of the first bone and the second bone to form a modified surface region at one or both of the first bone and the second bone; and positioning an implant in contact at least with the modified surface region.

An implant includes a body including a substrate and a bone interfacing lattice disposed on the substrate. The bone interfacing lattice includes at least two layers of elongate curved structural members, in addition, the at least two layers of elongate curved structural members include a first layer adjacent the substrate and a second layer adjacent the first layer. Also, the first layer has a first deformability and the second layer has a second deformability, wherein the second deformability is greater than the first deformability.

An improved surgical system and procedure for correcting a deformity between first and second bones using an alignment guide based on a correction factor. The correction factor can be based on a virtual model of the first and second bones in a deformed configuration and a corrected configuration. In the virtual corrected configuration, first and second virtual axes can be fixed in the respective first and second bones. When reverted to the virtual deformed configuration, the orientation of the first and second axes can be used to determine the correction factor. The alignment guide is used to insert one or more k-wires into each of the first and second bones in a deformed configuration. A correction guide is passed along the k-wires to rotate and / or translate the first bone relative to the second bone into the corrected configuration.