36 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 construction method of a personalized bone grafting guiding device for femoral neck fracture, which belongs to the technical field of digital medicine, and comprises the following steps: 1, three-dimensional reconstruction, 2, virtual reduction, 3, determination of bone grafting points, 4, determination of a bone attachment surface, using a 3-matic uniform offset tool to uniformly offset the extracted bone attachment surface to the outer side (i.e., the direction opposite to the bone surface) by 1-2 mm, and finally obtaining the personalized bone grafting guiding device for femoral neck fracture. 5, determining a bone grafting path, and 6, generating a kirschner wire sleeve based on the diameter of the kirschner wire so as to generate the bone grafting guider. Effective bony support is provided for the femur by attaching the attaching part to the rear side of the greater trochanter side of the femur of the patient, and the sleeve is guided through the generated kirschner wire. By using the bone grafting guiding device, a Kirschner wire can be accurately guided to a bone defect area, namely a bone grafting target area, in a femoral neck fracture closed reduction operation.

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.

An orthopedic system and method for treating a femoral fracture in, for example, a skeletally immature patient. The system and method including an intramedullary nail arranged and configured to be implanted within, for example, a femur of a skeletally immature patient. The system and method further including a bone screw (100) including a distal region (110) and a proximal region (130), wherein the distal region (110) is devoid of any threads so that the patient's bone is free to grow overtime.

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.

A femur cone includes an elongated hollow body tapered from an inferior edge to a superior edge. The elongated hollow body forms a bore between the inferior edge and the superior edge. The elongated hollow body has formed therein a window positioned substantially on an anterior side of the femur cone. The window includes a pair of opposing vertical steps connected to one another by a central horizontal connecting region. A tibia cone and a cone reamer are also disclosed.

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.

The present invention relates to a method for detecting and displaying a femoral fracture and, in particular, to a method for detecting and displaying a femoral fracture, which is capable of quickly and accurately detecting and displaying a femoral fracture. The method for detecting and displaying a femoral fracture of the present invention comprises: an image-capturing step for acquiring an original image by capturing a high resolution image of the body including the lower body of a patient, the image showing bones; a detection step for detecting a femur part from the original image; an extraction step for extracting a plurality of small images from the original image of the detected femur part; an examination step for examining, by means of a trained deep learning model, whether a femoral fracture exists in the small images; a coordinate detection step for detecting coordinate values of a part having the femoral fracture; a coordinate merging step for merging the detected coordinate values; and a display step for displaying the position corresponding to the merged coordinate values on the original image. The resolutions of the original image and the small images are the same, and the coordinate values are location values of the part having the femoral fracture with respect to a preset reference point on the original image.

The invention relates to a femoral intertrochanteric fracture reduction device. The femoral intertrochanteric fracture reduction device comprises an operating handle, a corrector and a driving mechanism, wherein the corrector is rotatably connected to the operating handle and used for bone reduction; the driving mechanism is arranged on the operating handle and connected with the corrector to drive the corrector to swing; the operating handle comprises a shell with a handle and a shell without a handle which are fixed with each other, and a handle part is outwards formed on one side of the shell with the handle; the side, opposite to the handle part, of the shell with the handle and the corresponding side of the shell without the handle outwards form extending strips which are symmetrically arranged, and the two extending strips are fixed to each other. The driving mechanism comprises a driving part arranged between the shell with the handle and the shell without the handle, and two traction ropes which are arranged between the two extension strips and are distributed up and down; according to the invention, the difficulty of bone movement is greatly reduced, so that the operation is greatly facilitated to achieve the effect of saving time and labor, and meanwhile, the resetting effect and accuracy are effectively improved.

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 discloses a bone holder for femoral subtrochanteric osteotomy, which comprises a clamping mechanism and a guide mechanism, and is characterized in that the clamping mechanism comprises a measuring side rod, sliding sleeves slidably mounted at the two ends of the measuring side rod, adjusting knobs rotatably mounted at one ends of the sliding sleeves, and connecting rods arranged at the side ends of the sliding sleeves; the fixing clamp is mounted at the tail end of the connecting rod; the guide mechanism comprises a connecting mechanism detachably connected to the measuring side rod, a placement block arranged at the side end of the connecting mechanism, a plurality of guide grooves formed in the placement block at equal intervals, and cutting tools clamped in the guide grooves. After a bone block is cut off, two smooth anastomosis surfaces at the broken ends can be provided, so that fracture healing is facilitated, and postoperative recovery is accelerated; and secondly, by stably clamping the wounded femur and limiting the femur in a single direction, the rotation that the broken ends of the cut femur get close to each other during splicing can be avoided.

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.

A femur fixation system includes an intramedullary nail that includes a first bending stiffness and a bone plate that includes a second bending stiffness and a second torsional stiffness. In the femur fixation system either at least one of the second torsional stiffness compensates for the first torsional stiffness and the first torsional stiffness is insufficient to enable the intramedullary nail to stabilize the bone fracture independently of the bone plate or the first bending stiffness compensates for the second bending stiffness and the second bending stiffness is insufficient to enable the bone plate to stabilize the bone fracture independently of the intramedullary nail.

A measuring assembly for determining the model of a femoral head prosthesis comprises a first measuring device and a second measuring device, the first measuring device comprising a first assembly fixed to the upper edge of the acetabulum and provided with a first scale and a second assembly fixed to the lesser trochanter of the femur, the second measuring device being provided with an opening, a sliding portion being provided in the opening, the sliding portion being provided with a connecting groove for connecting a femoral stem prosthesis, the sliding portion being further provided with a second scale and a second rack, and the second measuring device being provided with a screw rod that cooperates with the second rack rod for transmission; the present invention drives the sliding portion to move the femoral stem prosthesis by driving the screw rod, and at the same time the first assembly slides out of the second assembly, when the first scale is equal to the normal value from the upper edge of the acetabulum to the lesser trochanter of the femur, the corresponding second scale value is the difference in radial dimension of the femoral head prosthesis during surgery relative to a standard femoral head prosthesis, thereby determining the model selection of the femoral head prosthesis during artificial hip replacement surgery and solving the problem of unequal length of the lower limbs after total hip replacement surgery.

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.