35 results about "Humeral epiphysis" patented technology

A humeral prosthetic head has a non-spherical articulation surface coupled with an intermediate component connecting the head and the humerus, the intermediate component connected to the epiphysis, metaphysis, or diaphysis, or to one or more additional components connected to the humerus. The intermediate portion provides for axial and angular offset of the head with respect to a connection to the humerus, using a curvilinear tapered engagement.

A bone end (epiphysis) fracture device including a rotatable fixation plate having a guide pin aperture and a plurality of fixation screw apertures formed therethrough. The guide pin aperture is used by a surgeon to position the fixation plate so that one or more fixation screw apertures are properly positioned to receive fixation screws inserted by the surgeon for repairing a bone end fracture. In another embodiment, the fracture fixation device also includes a side plate to which the fixation plate is rotatably attached. This embodiment further includes one or more side plate apertures formed through an elongate extension, whereby the fixation device may also be attached to the bone for which an end fracture is being repaired. A lock screw is provided in this embodiment for locking the position of the fixation plate with respect to the side plate.

A bone end (epiphysis) fracture device including a rotatable fixation plate having a guide pin aperture and a plurality of fixation screw apertures formed therethrough. The guide pin aperture is used by a surgeon to position the fixation plate so that one or more fixation screw apertures are properly positioned to receive fixation screws inserted by the surgeon for repairing a bone end fracture. In another embodiment, the fracture fixation device also includes a side plate to which the fixation plate is rotatably attached. This embodiment further includes one or more side plate apertures formed through an elongate extension, whereby the fixation device may also be attached to the bone for which an end fracture is being repaired. A lock screw is provided in this embodiment for locking the position of the fixation plate with respect to the side plate.

An orthopedic device for ball and socket joint reconstruction. The anchor stem is adapted to be anchored in a medullary canal. A proximal portion of the anchor stem includes a threaded hole oriented along a longitudinal axis thereof. Metaphyseal portion includes a proximal end with recess and a longitudinal bore in fluid communication with the recess, and a distal end adapted to interface with the proximal portion of the anchor stem. An anti-rotation structure is preferably located at an interface of the anchoring stem to the metaphyseal portion to prevent rotation of the anchor stem relative to the metaphyseal portion around the longitudinal axis. A fastener is provided to extend through the longitudinal bore and to engage with the threaded hole on the anchor stem to fix the metaphyseal portion to the anchoring stem. The locking assembly is located in the recess and mechanically couples the head of the fastener to the metaphyseal portion to limit rotation of the fastener relative to the metaphyseal portion. An insert with an articular surface is provided that engages with the proximal end of the metaphysical portion and extends over the recess in the metaphyseal portion.

The invention relates to an epiphysis retardant built-in 8-shaped steel plate comprising two single-side pore plates, wherein the single-side pore plates are respectively provided with a hinged hole and are connected by a pivot through the hinged holes, and the two single-side pore plates can be assembled into a symmetrical 8-shaped steel plate. The invention also provides an application of the 8-shaped steel plate. The single-side pore plates of the 8-shaped steel plate are connected by hinges, so that a fixed screw does not have outward cutting force because of the arc-shaped structure of bones, and the steel plate implantation position and epiphysis retardant effect are maintained. The 8-shaped steel plate is provided with a gap big enough on the joint of the single-side pore plates to avoid pressing angles, and the steel plate dose not contact with the epiphysis when being implanted, thus avoiding epiphysis press and reducing damage. The animal experiment research proves that the 8-shaped steel plate can effectively control immature epiphysis growth and epiphysis appearance and is a safe and effective medical instrument in the half epiphysis retardant operation mode.

The invention concerns a prosthesis comprising: a stem part comprising: a rod, configured for being inserted into a medullary cavity of a diaphyseal fragment of a fractured long bone, for securing the stem part to the diaphyseal fragment, and an epiphyseal end, fixedly secured to the rod by means of at least one linker leg of the stem part, so that a gap is formed between the epiphyseal end and the rod along said at least one linker leg; and an implant distinct from the stem part and comprising: an internal part located at least partially within the gap, and at least one fastener for fastening epiphyseal fragments of the fractured long bone to the stem part, said at least one fastener being secured to the internal part.

The invention relates to a combined ankle-preserving and knee-preserving tibial shaft prosthesis, including a proximal tibial abutment and a mating segment prosthesis, wherein the base of the proximaltibial abutment is connected to the top of the mating segment prosthesis. The top of the proximal tibial abutment is provided with a bone trabecular structure the top surface center of which is provided with a groove, and the side of the proximal tibial abutment is provided with a plurality of U-shaped nail holes and a plurality of suture holes so as to reconstruct the patellar tendon and save the knee joint movement function. Two nail tracks are arranged side by side on both sides of the proximal tibial abutment. As that bone trabecular structure is use at the top of the proximal tibial abutment, the bone growth can be promoted, the groove on the top surface of the bone trabecular structure facilitates convenient insertion of cancellous bone, the artificial bone trabecula and the bone can be tightly combined, the purpose of reserving the epiphysis can be achieved, the bone growth ability of the child due to the epiphysis removal or destruction can be reduced, and the lower limb deformity can be avoided; The initial stability and long-term stability can be achieved by screw fixation, and the operation time and difficulty can be greatly reduced at the same time.

Provided is a method and an apparatus for extracting an edge of a distal radius metaphysis. The method includes: setting a region of interest including a distal radius in an X-ray image; setting a potential energy distribution of the region of interest by using a gradient of gray levels; setting a temporary edge adjacent to both sides of a distal radius metaphysis and a side of an epiphysis in the region of interest; and extracting a detailed edge of the distal radius metaphysis having minimum energy by adjusting the set temporary edge using a metropolis annealing technique.

A bone end (epiphysis) fracture device including a rotatable fixation plate having a guide pin aperture and a plurality of fixation screw apertures formed therethrough. The guide pin aperture is used by a surgeon to position the fixation plate so that one or more fixation screw apertures are properly positioned to receive fixation screws inserted by the surgeon for repairing a bone end fracture. In another embodiment, the fracture fixation device also includes a side plate to which the fixation plate is rotatably attached. This embodiment further includes one or more side plate apertures formed through an elongate extension, whereby the fixation device may also be attached to the bone for which an end fracture is being repaired. A lock screw is provided in this embodiment for locking the position of the fixation plate with respect to the side plate.

The invention relates to a surgical tool for mounting an internal epiphyseal arrest figure-8 steel plate. The surgical tool comprises a figure-8 template, a template clamp and a guide instrument, wherein the guide instrument is provided with an angle adjusting device; the angle adjusting device is provided with an angle adjusting knob, a scale plate and a rotating shaft which are connected with one another through connecting screws; an angle indicating needle is fixed on the angle adjusting knob through a screw; a connected whole is fixed on a connecting block of a double-aperture guide instrument through four screw holes on the scale plate and fixed on a guide sleeve of the double-aperture guide instrument through the connecting block of the double-aperture guide instrument; and a fastening bolt can make the angle adjusting device fixed at a correct position on the guide sleeve. In the angle-adjustable double-aperture guide instrument, an angle is formed between a drilling direction and an epiphysis horizontal plane through the angle adjusting device on the guide sleeve and two guide pore canals with different pore diameters, so that a screw insertion direction is deviated from the epiphysis, epiphyseal arrest effect is achieved and the epiphysis is prevented from being damaged.

The invention discloses a medicinal composition capable of promoting the growth and development as well as a preparation method and a preparation. The medicinal composition contains oyster, rhizoma polygonati, fructus alpiniae oxyphyllae, fructus crataegi, colla corii asini, semen myristicae, semen juglandis, Chinese wolfberry fruits, rhizoma dioscoreae and hydrolyzed yolk powder. Compared with the prior art, the medicinal composition provided by the invention has the beneficial effects that the growth of the osteoarticular cartilage and epiphysis cartilage can be stimulated, the absorption for the nutrient substance and the metastasis of the human body can be promoted, the secretion of growth hormone can be promoted, and the body height is increased. In addition, the product is blended according to the Chinese traditional Chinese medicine theory and in combination with the western modern technology, the theoretical method of the prescription is changed, through the improvement for the prescription, the functions of improving the constitution and supplementing nutrition are simultaneously realized, thus the growth and development are prompted, the height increase is facilitated, in addition, the medicinal composition is safe without toxic and side effects, and is rapid in taking effects, and high in effective rate.

The invention provides a non-contact capitulum curved stress bone fracture plate. The plate is fixed on a catagmatic part through novel bone screws with 0.3 to 0.5 mm of distance between the bone fracture plate and the bone; the non-contact fixing mode is adopted, so the periosteum cannot be peeled off and also cannot become necrosis caused by pressing, thereby ensuring that the catagmatic part has good blood supply, and promoting the healing of the catagmatic part. The stress deformation movement of the fixing section curved structure transfers the stress to the catagmatic end, so that the bone after fracture fixation can also be stimulated by appropriate stress to accelerate healing and reduce complication. The plate has the advantages of shortening the healing time and achieving biological fixation.

The invention concerns an inner fixation device for the correction of axial deformities of a limb, for example a long limb,of the type comprising at least one plate (2, 2′) for epiphysiodesis with at least a pair of lobes (3,4) each provided with a through hole (7) to be laterally fixed to a bone portion or to a long bone head. Advantageously, the device (1) comprises one second plate (12, 12′) placed on the opposite side of the bone portion with respect to said at least one plate (2, 2′) and connected to that by at least one rod (15) passing through the bone portion. The rod (15) is extended through the bone in parallel to an epiphyseal plate and it has opposite extremities (16,17) connected to the plates (2,2′; 2,12′) to keep them close to the bone and to stop the bone growth in one central portion of the bone.

The invention discloses a composite tumor type knee joint prosthesis reserving an epiphysis. The composite tumor type knee joint prosthesis comprises a thighbone prosthesis gripper, a connecting pieceand a thighbone prosthesis stem assembly, wherein the thighbone prosthesis gripper, the connecting piece and the thighbone prosthesis stem assembly are arranged from bottom to top; a plurality of gripper pieces are arranged at the bottom of the side end surface of the thighbone prosthesis gripper at intervals; the thighbone prosthesis gripper is fixedly connected to the connecting piece; and a side hole plate is arranged at the top of the side end surface of the connecting piece, and four side screw holes are formed in the side hole plate at intervals from top to bottom. According to the composite tumor type knee joint prosthesis reserving the epiphysis, after a distal femur malignant bone tumor is cut off, the epiphysis of a child can effectively reserved, the growing ability of the epiphysis and the stability of a knee joint is reserved, and the clinical problem that lower limbs of the child are unequal length after bone tumor surgery can be effectively reduced.

In order to promote bone growth without damage of a growth plate to improve the stability of a procedure, the present invention provides an implant device for promoting bone growth, the device comprising: a first implant bar implanted to penetrate a metaphysis corresponding to the inside of a growth plate of a long bone to be treated; a second implant bar implanted to penetrate an epiphysis of the outside of the growth plate; and a stimulation elongation means disposed close to the external surface of the long bone to be treated and installed under skin tissues surrounding the long bone to be treated, and being elongated between end portions of the implant bars to increase a gap between the implant bars to cause the growth plate to be extended.