52 results about "Bones femur" patented technology

A periprosthetic plate and method of use are disclosed that includes a proximal segment having a top portion and an end portion with at least two curved hooks that are capable of passing through a patient's abductor muscles and rest medially on a tip of a patient's greater trochanter (GT), wherein the proximal segment includes a plurality of recessed bone screw holes. A periprosthetic proximal femur plate is disclosed that includes a head portion having at least six first polyaxial screw holes and a shaft portion connected to the shaft portion having a plurality of rows of at least two second polyaxial screw holes located at an angle from the horizontal from about thirty degrees to about sixty degrees. A combination periprosthetic proximal femur plate and greater trochanter (GT) plate construct is disclosed that includes a greater trochanter (GT) plate located on top of the periprosthetic proximal femur plate.

The invention provides a plant lactobacillus for promoting skeletal development in a growth period as well as application and a product of the plant lactobacillus, and belongs to the technical field of microorganisms. The invention provides a lactobacillus plantarum BL25 and a probiotic preparation thereof, the preservation number of the lactobacillus plantarum BL25 is CGMCC (China General Microbiological Culture Collection Center) No.33117, stachyose is adopted as prebiotics, and compared with other prebiotics, the lactobacillus plantarum BL25 can obviously promote the activity of the lactobacillus plantarum BL25. The plant lactobacillus BL25 and the probiotic preparation thereof have the effect of resisting the severe environment of gastrointestinal tracts, and can increase the length of femur and bone density, promote the development of a bone microstructure, improve bone metabolism, increase osteogenesis markers and reduce osteoclast markers, so that the skeletal development in the life growth period is promoted.

Metastases increase the risk of bone fracture. Consequently, clinicians need to know if the patient's metastatic bones can withstand the stress of daily activities, in particular femurs and vertebras. Accordingly, it is disclosed a method for determining a probability of fracture of a metastatic bone of a patient in daily activities, that is determined from a numerical simulation of load application performed on a Finite Element model of the bone, and from a determined uncertainty related to the building of the FE model and the numerical simulation. The uncertainty has been elaborated by studies of replicability and sensitivity of models. According to the disclosed method, various probabilities may be computed for different types of daily activities according to the average load represented by each activity on the bone. The method may be applied to metastatic bones or vertebras.

The invention provides a proximal femur intramedullary nail, which comprises an intramedullary nail main body, which is configured to be arranged in a femur main body in a penetrating manner along the vertical direction; the fixing assembly comprises a fastening piece and a rotating piece, the fastening piece and the rotating piece are obliquely arranged on the intramedullary nail body in a penetrating mode, the first end of the fastening piece is configured to be arranged in the proximal femur in a penetrating mode and connected with the proximal femur, and the rotating piece is rotatably arranged on the intramedullary nail body and is in driving fit with the second end of the fastening piece; the fastener is driven to drive the proximal femur to move towards the main femur body to the position attached to the main femur body. According to the technical scheme, the problem that in the prior art, in the fixing process of a patient with the poor bone condition through an intramedullary nail system, the fracture part at the near end of the femur is possibly further damaged or shifted, the fracture part and the bone cannot be well combined, and then the bone is damaged can be solved.

The invention discloses a variable-density bone porous prosthesis design method based on bone density distribution, and relates to the technical field of biomedical engineering.The variable-density bone porous prosthesis design method comprises the following steps of S01, parametric modeling of unit cells, S02, pretreatment of thighbone CT data, S03, mechanical testing and mechanical property grading of porous materials, S04, establishment of a porous thighbone prosthesis model, and S05, design of a variable-density bone porous prosthesis model. According to the variable-density bone porous prosthesis design method based on bone mineral density distribution, the real bone mineral density form is simulated based on CT data of bones, parametric design is adopted in the method, quantitative research is facilitated, and micro design and then filling to a macroscopic model are utilized, that is, design is started from a minimum unit cell structure unit, and then design is started from a second unit cell structure unit to a third unit cell structure unit to a fourth unit cell structure unit to a fifth unit cell structure unit; on the basis of the bone density distribution condition of a three-dimensional CT value, the designed unit cell structures with different porosities are filled into three-dimensional bone CT data, the bone prosthesis designed through the method can be matched with the elastic modulus of surrounding bones, and a good bionic microenvironment can be provided for growth of bone tissue.

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.

1. The name of the product of this design: bone densitometer. 2. Purpose of the product with this appearance design: Mainly used for checking bone density, diagnosing osteoporosis, guiding the formulation of treatment plans, and monitoring treatment effects. It has scanning functions such as forearm, unilateral femur, bilateral femur, spine and various parts of the body. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The design for which protection is sought includes color. 6. The bottom surface of this design product is a part that is not easily visible or cannot be seen when in use, so the top view is omitted.

The present invention relates to the field of microorganisms, and in particular to a strain of anaerobic fecal coryneform bacteria CML199, a biological preparation and its application in preparing products for improving the performance of laying hens. The present invention has discovered a new anaerobic fecal coryneform bacteria (Anaerostipes caccae) CML199 without toxic side effects, and its preservation number is CGMCC No.31340. The anaerobic fecal coryneform bacteria can promote the bone development of laying hens, increase the level of bone formation markers in the femur, increase the level of bone formation markers in serum, improve the bone marrow immune microenvironment, and improve the eggshell quality. It is expected to be developed into a new and effective probiotic preparation, and has a very broad application prospect in the laying hen industry.

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

To provide a bone plate for treating periprosthetic fractures.SOLUTION: A bone plate 100 includes a head portion 102, sized and shaped so that, in an operative position, a proximal end 114 of the head portion aligns with a vastus ridge of a greater trochanter of a femur. The plate also includes a shaft portion 104 extending distally from the head portion. The shaft portion includes offset holes 106 to receive bone fixation elements therethrough. Each of the offset holes includes a first hole 110 positioned on a first side of a longitudinal axis of the plate and a second hole 112 positioned on a second side of the longitudinal axis opposite the first side, so that the bone fixation elements inserted therethrough extend anterior and posterior of a prosthetic received within the femur. The first and second holes are staggered relative to one another along a length of the shaft portion.SELECTED DRAWING: Figure 1

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.

The present invention relates to a device (1) for treating fractures, in particular fractures of the proximal femur, such as, for example, femoral neck fractures, comprising a plate (3) for attachment to the femur, one or more intraosseous screws (10) by means of which said plate (3) can be fixed to the femoral shaft (4) through an intraosseous screw opening (14), a coupling device, in particular a bone screw (5), arranged proximally with respect to said at least one intraosseous screw (10) by means of which said plate (3) can be coupled to the femoral head (7) through the femoral shaft (4) and femoral neck (2) at a coupling device opening (6), said coupling device being coupled to said plate (3) with clearance (21), such that said coupling device can be moved in the lateral direction (8) relative to said plate (3). In order to achieve a particularly precise and simultaneous adjustability of the clearance (21), according to the invention an adjustment device is provided which is coupled to the plate (3) and which can be positioned in different positions relative to the plate (3), by means of which the clearance (21) can be adjusted.

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 utility model relates to the technical field of medical instruments, and discloses an elderly femoral intertrochanteric fracture customized joint which comprises a bone near end, a fixing hole is formed in the surface of the bone near end, and a fixing ring, a positioning plate, a stress belt and a positioning hole are arranged in the fixing hole. The femoral prosthesis is reasonable in structure, the 3D printing femoral prosthesis, the fixing ring and the bolt ring at the proximal femur can be replaced in various models and sizes according to parameters of a patient, the proximal femur can be customized for the thickness and strength prosthesis of a bone trabecula according to the weight of the patient, and the distal and proximal femur can be positioned through the butt joint ring arranged on the lower surface of the proximal femur. The phenomenon that the distal femur fixed by a thread structure is loosened due to movement of a patient is avoided, effective bony support can be provided for a proximal femur fracture block through the design of the proximal femur individualized 3D printing bone trabecula, bony mechanical stability is achieved in the early stage, bone ingrowth is facilitated in the long term, proximal femur biological fixation is achieved, bony structure support is facilitated, and bone fracture is prevented. The gluteus medius efficiency and the ideal force arm are recovered.

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 utility model relates to a nail-plate integrated internal fixing device for treating distal femur fracture, which comprises an intramedullary nail, a plurality of transversely-locked interlocking locking holes are arranged at the near end and the far end of the intramedullary nail, and an elliptical screw hole is further arranged in the middle of the intramedullary nail; an LISS steel plate, a cortical bone screw and a lock cap. Compared with the prior art, the intramedullary nail has the advantages that the intramedullary nail can be integrally fixed with an LISS steel plate on the outer side, similar triangular fixation is achieved, the fixing efficiency is higher, lateral movement and shear stress of the fracture broken end can be more effectively controlled, the axial, bending and rotating stability of the fracture broken end is maintained, and the fracture broken end is prevented from being damaged. After being fixed, a patient can perform early-stage activity and early-stage weight bearing, the joint activity and lower limb weight bearing functions of the patient are reserved or recovered to the maximum extent, and the life quality of the patient is improved.

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 invention relates to the field of intelligent medical treatment, in particular to a method, equipment and program product for predicting proximal femoral fracture based on bone trabecula. Comprising the steps of S1, acquiring a hip image of a to-be-tested person; s2, quantifying based on the hip image to obtain the number of pressure-resistant bone trabecula and the number of tension-resistant bone trabecula; s3, when the number of the pressure-resistant bone trabecula is larger than a preset pressure-resistant threshold value and the number of the tension-resistant bone trabecula is smaller than a preset tension-resistant threshold value, it is judged that the femur near-end fracture risk exists in the to-be-detected person. Fracture prediction is carried out through the arrangement mode and density of the bone trabecula, and good clinical value is achieved.

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.

A periprosthetic plate and method of use are disclosed that includes a proximal segment having a top portion and an end portion with at least two curved hooks that are capable of passing through a patient's abductor muscles and rest medially on a tip of a patient's greater trochanter (GT), wherein the proximal segment includes a plurality of recessed bone screw holes. A periprosthetic proximal femur plate is disclosed that includes a head portion having at least six first polyaxial screw holes and a shaft portion connected to the shaft portion having a plurality of rows of at least two second polyaxial screw holes located at an angle from the horizontal from about thirty degrees to about sixty degrees. A combination periprosthetic proximal femur plate and greater trochanter (GT) plate construct is disclosed that includes a greater trochanter (GT) plate located on top of the periprosthetic proximal femur plate.