18 results about "Distal tibia" patented technology

An ankle joint replacement prosthesis comprises a tibia prosthesis assembly and a talus prosthesis, the tibia prosthesis assembly comprises a tibia prosthesis body and a cushion block, the tibia prosthesis body and the cushion block are in an arc shape with the middle bent upwards on the sagittal plane, the cushion block is arranged at the bottom of the tibia prosthesis body in a sleeving mode, and the surface of the upper portion of the tibia prosthesis body is a tibia joint face. The surface of the lower portion of the cushion block is a first articular surface, the surface of the upper portion of the talus prosthesis is a second articular surface, the second articular surface is in an arc shape with the middle bent upwards on a sagittal plane, the surface of the lower portion of the talus prosthesis is a talus joint surface, and the first articular surface is matched with the second articular surface. When the prosthesis is implanted, only the articular cartilage and the subchondral bone need to be treated at the far end of the tibia, so that the bone at the far end of the tibia is reserved to the maximum extent, the anatomical integrity of the bone is guaranteed, the stability of the prosthesis is enhanced, the service life is prolonged, and the clinical operation effect is improved.

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.

The present disclosure relates to an instrumentation system for implanting an ankle prosthesis. In various embodiments, the system includes a cutting assembly including a reaming tool for preparing a cavity within an intramedullary canal of a patient. In further embodiments, the system includes a guide block configured to fasten to a tibia of the patient and couple to the cutting assembly, the tibia having a proximal end and a distal end, wherein the guide block includes one or more alignment guides for guiding the cutting assembly to the intramedullary canal on the distal end for preparing the cavity without affecting a calcaneus or the proximal end of the tibia. In some embodiments, the system includes a distractor for separating the distal tibia from a talus to facilitate preparing the cavity and inserting an ankle prosthesis into the cavity.

The utility model relates to medical equipment technical field, concretely relates to a kind of distal end front lateral tibia locking steel plate, including distal end steel plate section, connecting portion and proximal end steel plate section being sequentially connected, the connecting portion is from the distal end steel plate section to the proximal end steel plate section setting, uses, the locking position of extension locking steel plate can be adjusted by extension locking component, i.

Provided are a distal medial tibial hemi-epiphysiodesis blocking staple and supporting tools. The distal medial tibial hemi-epiphysiodesis blocking staple includes a tibia arm, an epiphyseal arm and a connecting section. The connecting section is connected with the tibial arm and the epiphyseal arm to form a similar U-shape. The tibial arm and the epiphyseal arm are arranged in parallel and in arc transition with the connecting section to limit a spacing between the distal tibia and the epiphysis. Inverted tooth portions for preventing the hemi-epiphysiodesis distal medial tibial staple from withdrawing are uniformly distributed on the tibial arm and the epiphyseal arm.

The invention relates to an alignment device (1) for a tibial resection guide, comprising: a clamping device (2) which has at least two clamping elements (4, 4a) acting against one another for clamping the distal end of a tibia (3) of a patient; a contact device (6) for contacting the proximal end of the tibia (3), which device comprises a tool guiding device (8) for guiding a tool during the resection of the tibia (3); and a telescopic device (10) which is separably connected to the contact device (6) and adjustably connected to the clamping device (2) and is designed to align the devices (2, 6) with respect to the tibia (3), the telescopic device (10) also having, in its proximal region (52), a decoupling device (12) which is designed to separate the contact device (6) from the telescopic device (10) when activated; and the clamping elements (4) of the clamping device (2) are designed such that the telescopic device (10) can be removed from the tibia (3) with one hand after the decoupling device (12) is activated.

The utility model discloses a metal 3D printing porous bone induction structure tibial prosthesis, which comprises a diaphysis prosthesis, a bone fracture plate and an intramedullary nail, the diaphysis prosthesis is designed according to the anatomical form of the focus part of a patient, the diaphysis prosthesis comprises a solid framework and a porous structure, and a cavity is arranged in the diaphysis prosthesis; the at least two bone fracture plates are connected to the two ends of the diaphysis prosthesis in the tibia direction respectively, and the at least two bone fracture plates are connected with the tibia near end and the tibia far end through screws respectively. The tibia near end comprises a first medullary cavity, the tibia far end comprises a second medullary cavity, the intramedullary nail penetrates through the first medullary cavity, the cavity and the second medullary cavity, and the two ends of the intramedullary nail are connected with the tibia near end and the tibia far end through screws respectively. The utility model can solve the problems of incapability of realizing rapid healing, poor initial stability and poor long-term stability in the existing bone defect reconstruction.

A system and method fare provided for preparing the distal tibia in an ankle replacement via an extra-medullary jig. An extra-medullary jig or C-bracket is positioned on the tibia with a registration reference and positioned with respect to a resection in the distal tibia via an anterior mounting block which is independent of the surface of the tibia. The mounting block allows the adjustment of the stem cartridge with respect to the registration reference such that the stem cartridge is properly aligned within the resection. The C-bracket is further attached to the tibia via an adjustable proximal alignment arm which attaches to a pin embedded in the proximal tibia. The C-bracket aligns the tibia, foot and ankle and the trajectory of the reamer, and is universal with respect to the left and right ankle.

1. Name of the product in this design: Distal Tibial Bone Plate. 2. Purpose of this design: A fixation plate for bone setting. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

An alignment device for a tibial resection guide includes a clamping device having at least two clamping elements acting against one another for clamping the distal end of a tibia of a patient. A contact device for contacting the proximal end of the tibia includes a tool guiding device for guiding a tool during the resection of the tibia. A telescopic device is separably connected to the contact device and adjustably connected to the clamping device. The telescopic device is designed to align the contact device and clamping device with respect to the tibia. The telescopic device has a decoupling device configured to separate the contact device from the telescopic device when activated. The clamping elements are designed such that the telescopic device can be removed from the tibia with one hand after the decoupling device is activated.

A position adjustment device having a tool holder is locked to at least two pins projecting from respective anterior facing locations near a distal end of a tibia of a patient. The position adjustment device is adjusted. The position adjustment device is locked with the tool holder at first coordinates in the proximal-distal and medial-lateral directions. The distal end of the tibia is resectioned with a tool positioned on the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tool is removed from the tool holder. A tibia trial is placed on the resectioned tibia using the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tibia trial has a size and shape of a tibial tray of an ankle replacement system.

The present invention provides an ankle joint prosthesis, which includes a tibial stem, a distal tibial prosthesis, and a tibial connector. The tibial stem is configured to be disposed in the medullary cavity of the human tibia; the tibial connector is disposed between the tibial stem and the distal tibial prosthesis so that the tibial stem and the distal tibial prosthesis are connected through the tibial connector. Among them, the tibial connector has a first connecting portion and a second connecting portion. The second connecting portion is used to connect with the tibial stem, and the first connecting portion is used to connect with the distal tibial prosthesis. The first central axis of the first connecting portion and the second central axis of the second connecting portion are arranged in parallel, so as to adjust the position of the second central axis relative to the central axis of the distal tibial prosthesis by rotating the tibial connector relative to the distal tibial prosthesis, and further adjust the position of the tibial stem relative to the distal tibial prosthesis, so that the tibial stem can better adapt to different medullary cavity shapes.

Disclosed is a method of preparing a tibial intramedullary canal for receiving a tibial implant such as a stem component of a total ankle replacement prosthesis where an extended cavity is prepared in the tibial intramedullary canal by pulling a tibial reamer bit in the proximal direction from the distal end of a tibia into the tibial intramedullary canal by using a flexible neck tooling introduced through the tibial intramedullary canal from a position proximal to the distal end of the tibia.

The invention provides a partitioned porous structure ankle joint tibia prosthesis, and relates to the technical field of artificial joint prostheses, the partitioned porous structure ankle joint tibia prosthesis comprises a tibia prosthesis, the upper end face of the tibia prosthesis is of a porous structure, and the lower end face of the tibia prosthesis is of a porous structure. And the pore diameter of the porous structure of the first outer area is different from that of the porous structure of the first inner area. The upper end face of the tibia prosthesis of the ankle joint tibia prosthesis with the partitioned porous structure is provided with the porous structure, the porous structure is divided into the first outer area and the first inner area, the first outer area and the first inner area are different in aperture, and then the first outer area and the first inner area can be matched with a bone trabecula structure at the far end of a tibia in a regional non-uniform distribution characteristic; a porous structure partition of a first outer area and a porous structure partition of a first inner area are arranged on an osseointegration interface in a targeted mode, and therefore bone resorption and secondary prosthesis looseness caused by postoperative stress shielding are reduced.

A calcaneal prosthesis system includes a body having a dorsal surface, a plantar surface, an anterior surface, and a posterior end. The posterior end has a tuberosity. The anterior surface has at least a concavity or convexity shaped for receiving a cuboid bone or mid-foot bone. The dorsal surface includes a convex or concave surface for engaging a talus bone or distal tibia. An integrally formed intramedullary (IM) nail extends from the dorsal surface.

The utility model discloses a pressing, stretching and traction therapeutic apparatus for gonitis. The middle part of a fixed bottom plate is provided with a guide part which is arranged along the length direction of the fixed bottom plate; the reset assembly comprises a sliding plate, the bottom of the sliding plate is in sliding connection fit with the guide part, four traction rods arranged in a rectangular shape are arranged on the upper surface of the sliding plate, each traction rod comprises a telescopic rod, universal shaft joints are fixed to the two ends of each telescopic rod, and one end of each traction rod is fixed to the sliding plate. The reduction plates can be fixed on the left side and the right side of a reduction plate knee joint of a patient in a wrapping manner; the traction assembly comprises a traction seat used for tightly holding the far end of the tibia, the bottom of the traction seat is matched with the guide part in a sliding connection mode, and a power component driving the traction seat to move towards the far end is connected to the traction seat. During treatment, a patient lies on the fixing bottom plate, the knee joint is fixed through the reset assembly, the knee joint can be turned outwards to be reset and pressed downwards through deformation of the four traction rods, and bone displacement is corrected. In addition, the traction assembly performs traction at the far end of the affected limb, so that the knee joint ligament is continuously stretched and recovered.

A position adjustment device having a tool holder is locked to at least two pins projecting from respective anterior facing locations near a distal end of a tibia of a patient. The position adjustment device is adjusted. The position adjustment device is locked with the tool holder at first coordinates in the proximal-distal and medial-lateral directions. The distal end of the tibia is resectioned with a tool positioned on the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tool is removed from the tool holder. A tibia trial is placed on the resectioned tibia using the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tibia trial has a size and shape of a tibial tray of an ankle replacement system.

The utility model belongs to the technical field of bone setting, and discloses a tibia far-end rear side dissection locking plate which comprises a bone setting plate head and a bone setting plate rod, the near end of the bone setting plate rod and the bone setting plate head are integrally formed, the shape of the bone setting plate head is matched with that of a bone on the tibia far-end rear side, and the bone setting plate head is attached to the bone on the tibia far-end rear side. The near end of the bone fracture plate rod part is circumferentially twisted along the length direction of the bone fracture plate rod part from the far end of the bone fracture plate rod part, so that the bone fracture plate rod part is matched with the shape of a tibia backbone. The tibia far-end rear side dissection locking plate is lengthened, the bone fracture plate head is attached to the bone on the tibia far-end rear side, the near end of the bone fracture plate rod is attached to the inner bone face on the rear side of the tibia backbone, and the far end of the bone fracture plate rod is close to the outer side of the tibia to be attached due to torsion of the bone fracture plate rod. The tibia far-end rear side fracture is admitted from the far-end rear outer side, and the tibia backbone fracture is admitted from the weak position of the rear inner side muscle soft tissue, so that the tibia far-end rear side fracture and the tibia backbone are fixed at the same time.