27 results about "Bones femur" patented technology

A hip navigation system is provided that includes a navigation device comprising one or more sensors configured to sense changes in orientation and rotation, a reference sensor device comprising one or more sensors configured to sense changes in orientation and rotation, and a femur sensor device comprising one or more sensors configured to sense changes in orientation and rotation. The hip navigation system is provided for navigating a cup toward target angles. The hip navigation system is provided for determining changes in leg length and / or joint offset. Methods of using the hip navigation system are provided. A graphical user interface of the navigation device is provided.

The invention provides a precise navigation method and system for large trochanter bone scale retardation. The method comprises the following steps: acquiring a bone three-dimensional model of a large trochanter and planning information of a retardation screw; carrying out registration on an entity trochanter and the skeleton three-dimensional model in an operation, and mapping planning information of a blocking screw; and tracking and displaying the poses of the screw placement tool and the solid large trochanter in real time so as to navigate the screw placement action of the retardation screw. In the application, accurate screw placement of epiphyseal block is realized by planning the screw placement scheme of epiphyseal block, tracking the screw placement tool and the distal end of the solid femur in real time, so that accurate screw placement is realized without repeated fluoroscopy, and radiation exposure injury is avoided.

FIELD: traumatology; orthopedics.SUBSTANCE: used in the treatment of displaced fractures of both columns of the acetabulum (AC). After performing repositioning and metal osteosynthesis of the anterior column of the acetabulum, X-ray control is performed. A proximal support consisting of two halves is formed on bone rods inserted into the iliac bones. On the hip, on the bone rods, on the side of the acetabulum fracture, in a position of its internal rotation by 10° , a distal support along the outer surface is formed with the possibility of movement, distraction and lateralization. The proximal and distal supports are connected by rods, with the help of which distraction along the axis of the femur is performed by 2 cm and its lateralization by rods by 1.5 cm, the apparatus is stabilized, and X-ray control is performed.EFFECT: method ensures anatomically correct restoration of the acetabulum and its reliable stabilization, allowing the patient to be activated at an early stage due to the formation of a proximal support from two halves on bone rods inserted into the iliac bones, creating the ability to produce and maintain internal rotation of the hip, distraction and lateralization of the hip along its axis due to internal rotation of the hip by 10°, creating tension in the short external rotators of the hip.1 cl, 4 dwg, 1 ex

The invention discloses a femur species identification system and method based on a scanning electron microscope and artificial intelligence, and the system comprises a data module which is used for obtaining a data set and carrying out the data preprocessing; the model construction module is used for constructing an identification model for species identification; the recognition model carries out learning training based on a ResNet50 network and the preprocessed bone slice image data; the identification model comprises a two-category image identification model for preliminary classification and a multi-category image identification model for further subdivision, and the two models are independently trained; the species identification module is used for inputting femur image data needing to be identified into the identification model for two-stage cascade prediction after training is completed, and an identification result corresponding to each image is obtained; the method has the beneficial effects that the SEM technology is combined with the AI image recognition, so that the defects of the traditional means are overcome, and the identification efficiency is greatly improved while the identification accuracy is improved.

Within examples, a surgical device with an embedded sensor system for performing hip replacements is described. This device mitigates fracturing of the mid metaphyseal / diaphyseal region of the femur, and ensures adequate press-fit of the component into the bone. The device relays information regarding forces experienced by the patient's bone to a separate data acquisition device and displays it on an interface. This information is used by the surgeon to determine the force present inside of the patient's bone during broaching, and can then be used to provide better care, and mitigate fractures due to overloading in the bone.

A reverse bolted greater trochanter periprosthetic plate configured to be mounted to a femur of a patient includes a central portion with an inner surface configured to face and / or contact a femoral surface of the femur; a plurality of leg portions extending from the central portion forming a claw configured to grasp a portion of the femur; and a bolt receptor portion extending from the central portion configured for receiving a bolt for securing the plate to the femur during a reverse bolted greater trochanter periprosthetic procedure.

The invention relates to a device (1) for treating a bone fracture, in particular a proximal femoral fracture, comprising a base (2), for fastening to a femur, as well as at least one bone screw (4) and an adjustment screw (5), wherein the base (2) has an opening (6) through which the bone screw (4) can be guided in order to be fastened in a femoral head and which receives the adjustment screw (5), wherein the bone screw (4) is in particular slidably mounted in the opening (6), and wherein the adjustment screw (5) is designed to predetermine, in the fastened state, in particular a maximum lateral sliding of the bone screw (4). According to the invention, in order to allow a targeted lateral movement of the femoral head without moving a lateral end of the bone screw (4), the bone screw (4) comprises a first bone screw part (41) and a second bone screw part (42), wherein the bone screw parts (41, 42) can be shifted relative to one another to change a bone screw length (L).

The invention relates to an adjustable femur model bone micro-motion experiment device, and belongs to the technical field of femur model bone micro-motion experiments, the adjustable femur model bone micro-motion experiment device comprises an experiment machine, and a supporting column used for supporting is fixedly installed on the top surface of the experiment machine and located below the output end; fastening groove blocks used for fastening are fixedly installed on the top face of the supporting column and the output end of the experiment machine correspondingly, conveying ring cavities used for conveying are formed in the inner walls of the two fastening groove blocks, and two L-shaped air leakage openings used for air leakage are formed in the two opposite sides of the inner walls of the two conveying ring cavities correspondingly. The inner walls of the multiple L-shaped air leakage openings are provided with adjusting assemblies used for adjusting air leakage, and the peripheral sides of the inner walls of the two conveying ring cavities are provided with a plurality of extrusion assemblies used for extrusion and fastening. The problem of experimental errors caused by infirm fixation or excessive fastening of the thighbone model is avoided, and the experimental accuracy of the whole device is ensured.

The application provides a construction method of a femoral neck fracture personalized bone grafting guide, and belongs to the technical field of digital medicine, and comprises the following steps: 1, three-dimensional reconstruction; 2, virtual reduction; 3, determining a bone grafting point; 4, determining a bone attachment surface; using the uniform offset tool of 3-matic, the extracted bone attachment surface is uniformly offset by 1-2 mm to the outside (namely, in the direction opposite to the relative bone surface), a fitting part is generated; 5, determining a bone grafting path; 6, generating a Kirschner wire sleeve based on the diameter of the Kirschner wire, and further generating a bone grafting guide. The application realizes effective bone support for the femur by attaching the fitting part to the back of the greater trochanter side of the femur of the patient, and generates a Kirschner wire guide sleeve. By using the bone grafting guide, the Kirschner wire can be accurately guided to the bone defect area, namely the bone grafting target area, in the closed reduction surgery of the femoral neck fracture.

The utility model discloses a femoral intramedullary nail which comprises a main nail, the main nail comprises a far-end section, a near-end section and a connecting piece used for connecting the far-end section and the near-end section, the connecting piece comprises a first section and a second section, the first section is in threaded connection with the far-end section, and the second section is in threaded connection with the near-end section. Through relative rotation of the near-end section and the far-end section, the upper part and the lower part, needing to be corrected, of the near end of the femur are adjusted to reach a proper matching angle, the structure is simple, rotation correction bone setting treatment is specially carried out on the near end of a child, controlled rotation correction is allowed, and the device is mainly designed for near-end fracture, malformation healing, bone nonunion and malformation.

The application discloses a design method of a bionic bone support based on TPMS and belongs to the technical field of bionic bone supports. The application is based on G unit and D unit formulas, adjusts a bias function to generate G gradient unit and D homogeneous unit CAD models; uses a fusion function to fuse the G gradient unit and the D homogeneous unit CAD models to generate a GD radial fusion CAD model, adjusts the bias function of the G gradient unit by using an interpolation method to make the GD radial fusion CAD model reach a target average porosity; reduces the wall thickness of the GD radial fusion CAD model to form a GD radial fusion CAD model with wall thickness; then divides the GD radial fusion CAD model with wall thickness into a finite element simulation grid model and outputs an inp format simulation model file; imports the inp format simulation model file into HyperMesh software, repairs and divides the grid and exports an inp file format model. The porous support designed by the application considers different functional grading of natural bone structures and different cell morphological fusion, better meets the mechanical properties of a natural femur, and light weight design increases the specific surface area to provide more space for bone cell adhesion and growth.

A reverse bolted greater trochanter periprosthetic plate configured to be mounted to a femur of a patient includes a central portion with an inner surface configured to face and / or contact a femoral surface of the femur; a plurality of leg portions extending from the central portion forming a claw configured to grasp a portion of the femur; and a bolt receptor portion extending from the central portion configured for receiving a bolt for securing the plate to the femur during a reverse bolted greater trochanter periprosthetic procedure.

The invention relates to medicine and can be used for treating severe polytrauma and complex fractures, for example, of the tibia long bone. A robotized system for the closed reduction of a fractured femur comprises a system of actuators based on a Stewart platform, a working member assembly, Schanz pins, a perineal post, and a controller with software. The Stewart platform is mounted on a floor plate via a vertical column. The linear actuators are arranged between a base plate and an end effector having a C-shaped ring. The two ends of the actuators are connected by hinges to the base plate and the end effector, respectively. The Schanz pins are secured to mounting blocks which are fastened by round-head screws and wingnuts. The perineal post is mounted on a base plate via a vertical column. The post is connected to two additional links. An O-shaped ring of the perineal post is connected to the C-shaped ring by a trapezoidal steel ring. A Schanz pin is mounted on a steel block such as to be capable of holding a proximal fragment in place during the reduction process. The invention results in precise traction forces and the optimal alignment of bone fragments.

A hip navigation system is provided that includes a navigation device comprising one or more sensors configured to sense changes in orientation and rotation, a reference sensor device comprising one or more sensors configured to sense changes in orientation and rotation, and a femur sensor device comprising one or more sensors configured to sense changes in orientation and rotation. The hip navigation system is provided for navigating a cup toward target angles. The hip navigation system is provided for determining changes in leg length and / or joint offset. Methods of using the hip navigation system are provided. A graphical user interface of the navigation device is provided.

The utility model discloses a kind of doll skeletons, specifically related to the technical field of doll skeleton, including torso, arm and lower limbs, the top two sides of torso symmetry adopt arm connecting piece and have arm, bottom two sides are connected with lower limbs through lower limb connecting piece rotation connection lower limbs, the end of femur connecting piece away from torso is provided with the clamping block that is rotationally connected with the buckling groove of femur. Relative rotation between femur connecting piece and femur can be achieved, the twisting effect of lower limbs is simulated, and the connection characteristics of connecting cylinder are utilized, so that knee joint can make knee flexion and other actions around patella.

The present invention relates to a medical bone (10) plate for the treatment of fractures of the distal femur (2) with metaphyseal comminution, periprosthetic fractures, and / or interprosthetic fractures, the bone plate (10) being non-custom fit and non-planar, the bone plate (10) being twisted and having a proximal portion (12), a distal portion (16) and an intermediate portion (14) connecting the proximal portion (12) with the distal portion (16), wherein: a. the distal portion (16) is configured to fit to the distal medial femoral condyle (2a); b. the proximal portion (12) is configured to be aligned with the distal ventral section of the femoral shaft (2b).

The present application relates to a kind of femur model construction system and method.System at least includes three-dimensional model creation module and three-dimensional model extraction module.Three-dimensional model creation module is configured as: the two-dimensional tomogram image data of femoral head site is reconstructed to establish the three-dimensional grid model of femoral head, the three-dimensional grid model of femoral head is by a series of triangular facet mesh set under three-dimensional coordinate system, this three-dimensional grid model at least includes original necrosis model A and original bone model B.Three-dimensional model extraction module traverses each triangular facet mesh of original necrosis model A, the three vertices of each triangular facet mesh are extended to obtain respective corresponding line segment along respective corresponding normal direction, if the three vertices of triangular facet mesh respective corresponding line segment is not intersected with original bone model B, then take out the facet, and it is placed in set S 11 .

Technologies for non-visual monitoring of an orthopaedic surgical procedure includes determining a difference between a measured or sensed value of a force between the patient's tibia and femur and a target force value. A non-visual indicator is activated to produce a non-visual indication having a characteristic that is dependent on a magnitude of the difference between the measured or sensed force and the target force.

The application discloses an egg yolk protein-derived tripeptide with the function of improving osteoporosis and application thereof, and belongs to the technical field of biological medicines. The tripeptide is a tripeptide APW with an amino acid sequence of Ala-Pro-Trp. The peptide segment can be obtained by artificial synthesis or directional enzymolysis of defatted egg yolk powder. Function verification shows that the tripeptide APW and egg yolk protein enzymolysis products containing the peptide segment have the function of improving bone density. In a zebra fish osteoporosis model, when the egg yolk protein enzymolysis product is 20 μg / mL, the bone density is increased by 58%; when the tripeptide APW is 0.5 μg / mL, the bone density is increased by 23.4%; in a rat osteoporosis model, when 10 mg / kg.d of the egg yolk protein enzymolysis product is eaten, the bone density of the femur is increased by 3.39%. Moreover, the food-derived bioactive peptide has high biological safety, so the tripeptide APW and the egg yolk protein enzymolysis product containing the peptide segment can be applied to the preparation of medicines for treating osteoporosis or health care foods for improving bone density, and have good market prospects and application potential.

An alignment block according to one embodiment is for guiding, when the distal end of a femur is resected, a resection surface in an appropriate angular direction. The alignment block comprises a support body that has a first contact surface which contacts one of the medial and lateral condyles of the femur, and a mobile body that has a second contact surface which contacts the other of the medial and lateral condyles of the femur. A cutting block for guiding a bone saw can be removably attached to the support body. The mobile body is supported by the support body so as to be movable in a direction normal to the first contact surface. The alignment block further comprises biasing means for biasing the mobile body in the direction in which the first contact surface faces.

A hip arthroplasty system, intended to improve anatomic placement and maintain bone stock, includes a nail for insertion into an intramedullary canal of a femur, screw holes generally perpendicular to the nail, and a hole having a transverse axis. The system also includes a bone anchor having an opening for a cut-off femoral neck, a neck component having a longitudinal body and a seat for the femoral head, a femoral head, and an acetabular cup assembly. A jig is provided for implanting the system and includes a guide that orients relative to the nail, attachment hardware, a rail adapted to extend parallel to the transverse axis of the nail, and a second guide slidably displaceable along the rail. The system provides significant adjustability and retains maximum bone for the possibility of revision.

A method of stabilizing fragments of a distal femur includes placing a fixation plate against the distal femur, securing a first portion of the fixation plate to a shaft of the distal femur, including inserting a first fastener through a first hole of the fixation plate, and securing a second portion of the fixation plate to a condyle of the distal femur, including inserting a second fastener through a second hole of the fixation plate. The first and second fasteners are substantially transverse to each other. A fixation plate and a bone fixation system are also provided.

The utility model discloses a porous multi-axis intramedullary nail based on intertrochanteric fracture, which comprises an intramedullary nail main body, a locking piece is arranged on the intramedullary nail main body, and an anti-loosening piece is arranged between the intramedullary nail main body and the locking piece; the intramedullary nail body comprises a near-end nail section and a far-end nail section, and a near-end locking screw hole is formed in the near-end nail section. A near-end locking screw hole and a far-end locking screw hole are designed to be provided with multiple holes in different planes, proper paths of a locking nail A and a locking nail B can be selected according to the fracture form and bone distribution, the fixing firmness is improved, stronger three-dimensional fixing is achieved, and strength weakening of the intramedullary nail can be reduced; the locking nail A and the locking nail C are limited through the anti-loosening piece, the locking nail A and the locking nail C are prevented from loosening and falling off, the connecting stability of the locking nail A and the locking nail C and the near-end nail section is improved, the locking nail is particularly suitable for comminuted and complex intertrochanteric fracture and osteoporosis patients, and the risks of sinking, cutting or loosening of the locking nail A and the locking nail C are reduced.

A device for treating a bone fracture, in particular a femur fracture such as a femoral neck break, includes a holding part fastenable in or on a first bone part, wherein the holding part has at least one opening through which a bone screw and an adjusting screw are guided. The opening includes on the inner side a surface having a threaded surface that the adjusting screw engages, with the bone screw being able to slide freely in the opening, and the adjusting screw is configured to allow the bone screw to rest against at least one stop of the adjusting screw, if necessary after a lateral sliding of the bone screw. An adapter that can be fixed in the bone screw to be laterally releasable forms a barrier for the adjusting screw in the event of lateral movement of the adjusting screw.

A femoral nail includes a proximal section, a distal section remote from the proximal section, and an intermediate section disposed between the proximal section and distal section and having first and second curved portions. The first curved portion is positioned closer to the proximal section than the second curved portion. The second curved portion is curved in a first plane, and the first curved portion is curved in the first plane and a second and third plane.

The application discloses a polypeptide-containing composition and its use for bone growth of children. The application also discloses a growth-promoting polypeptide which is screened and separated from a horse foal leg bone and can effectively promote proliferation of osteoblasts. The growth-promoting polypeptide can effectively promote weight increase of a rat femur, can significantly improve bone strength and bone density, can increase ALP activity, promote maturation of osteoblasts and start calcification, can significantly improve calcium ion content in the bone, and has a good effect of promoting bone growth and improving bone strength.

1. The name of the design product: animal stretching device (special for distraction osteogenesis). 2. The use of the design product: used for installing on the bone cutting site of the lower jaw, femur and other bones of animals such as mice, rats, rabbits, etc., aligning and fixing the two bone cutting ends, and promoting large-scale new bone formation through periodic stretching. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective drawing.