9 results about "Bone volume" patented technology

The invention relates to a device for bone formation, bone reshaping or healing of bone in dental, oral and maxillofacial applications, specifically in connection with installation of dental implants. The device comprises a sheet structure made of an inert material, wherein the sheet structure has an inner surface intended to be directed towards the bone and an outer surface intended to be directed away from the bone. The geometrical features of the cavity formed between the inner surface of the device and the initial bone surface when the device is installed at the intended location is further used to improve and plan the treatment. The device is customized by means of digital planning based on the initial and the optimal bone volume for the intended treatment. Modifications of the device can be introduced to facilitate a combined installation of dental implants with the device.

The invention relates to a bone volume evaluation system (100) based on magnetic resonance (MRI) patient scan data and / or at least one combined computed tomography (CT) data, comprising at least one processor module (110) and at least one memory module (120) for storing patient data. The processor module (110) is configured to process and / or analyze MRI patient scan data, at least one combination of CT data and / or simplified patient data, preferably to process the data combinations to determine at least one bone volume parameter of the first patient, including bone mineral density, fat percentage, calcium concentration, total bone trabecular interstitial density, etc. In addition, the invention also relates to a corresponding method 200 and a computer readable medium.

The invention discloses a bone defect clinical disease risk prediction method and system based on an intelligent chip, and the method comprises the steps: constructing a training data set containing a bone defect type, an external feature type, physiological information and a bone volume reduction rate, and distinguishing a normal state or an abnormal state according to whether a patient is accompanied with a disease affecting healing or not. Training a random forest model and a time sequence convolutional network model for a normal state and an abnormal state respectively by adopting a hybrid modeling strategy, and burning a normal / abnormal channel risk prediction model to an intelligent chip; the intelligent chip collects patient data, calculates the bone volume reduction rate, calls a corresponding model to predict future changes, and finally achieves dynamic risk early warning by comparing the deviation between a preset risk threshold value and a real-time monitoring value. According to the invention, the corresponding risk prediction model is selected based on the actual condition of the patient, and accurate and real-time risk prediction and monitoring of the bone defect healing process are realized.

A method according to one embodiment includes: determining a volume of a harvested autograft, the determining including: receiving an image depicting an anatomical element, the image segmented into a plurality of voxels with each voxel of the plurality of voxels labeled with either a first bone volume label representing a first volume type or a second bone volume label representing a second volume type; and summing a first set of voxel values labeled as having the first volume type and through which an operative portion of a navigated tool passes to determine the volume of the harvested autograft; and determining a total volume of a bone graft for a surgical task, the determining including: identifying a portion of a patient eligible for the bone graft; and summing a second set of voxel values associated with the portion of the patient to determine the total volume of the bone graft.

The present invention relates to a system (100) for bone volume assessment based on MRI patient scan data and / or at least one set of composite CT data, the system comprising at least one processor module (110) and at least one storage module (120) for storing patient data, the processor module (110) being configured to process and / or analyze MRI patient scan data, at least one set of composite CT data and / or reduced patient data, preferably in combination with each other, so as to identify at least one bone volume parameter of a first patient, in particular bone mineral density, fat percentage, calcium concentration, total density, intertrabecular space, etc. Furthermore, the present invention relates to a corresponding method 200 and a computer-readable medium.

A method according to one embodiment includes determining a volume of an acquired autograft, the determining including: receiving an image depicting an anatomical element, the image segmented into a plurality of voxels, wherein each voxel of the plurality of voxels is labeled with a first bone volume label representing a first volume type or a second bone volume label representing a second volume type; and summing the first set of voxel values marked as having the first volume type and traversed by the operating portion of the navigation tool to determine the volume of the acquired autograft; and determining a total volume of the bone graft for the surgical task, the determining comprising: identifying a portion of the patient conforming to the bone graft; and summing a second set of voxel values associated with the portion of the patient to determine a total volume of the bone graft.

The present invention pertains to the field of biomaterials for covering and protecting bone grafts / biomaterials, and relates more specifically to a titanium mesh covered with a biocompatible polypropylene film that aims to increase bone volume using biomaterials or using grafts in their most varied forms, such as autogenous bone (bone from the individual), allogenous bone (bone from other individuals of the same species), and xenogenous bone (bone from individuals of a different species) for the subsequent installation of osteointegrated implants. When the claimed mesh protected with a polypropylene film is used, with the film blocking the holes, the materials used to increase the volume do not pass through the holes of the mesh, as they are blocked by the polypropylene film, making these meshes 100% waterproof. This makes it easy to remove the mesh and, as there is no penetration of material through the holes, the implants are installed over a large amount of bone tissue. When using the titanium mesh with the polypropylene film, in contrast to when it does not have this protection, it does not need to be completely covered by surgical flaps, facilitating the surgical technique and thus avoiding post-operative complications due to exposure that often occurs with unprotected meshes. In addition, it is advantageous that the mesh can be kept intentionally exposed to the mouth environment, placed over the materials used to achieve bone volume augmentation, regardless of the materials used underneath it, whether grafts or biomaterials (synthetic materials). This brings greater comfort to the patient, as it provides a post-operative period with very low morbidity and a rapid recovery.

The invention discloses a dental orthodontic front bone health risk assessment system, electronic equipment and a storage medium, and the system comprises a data acquisition module which is used for acquiring two-dimensional or three-dimensional image data of the oral cavity of a patient; the image processing module is used for processing the acquired image data and extracting target parameters of bone tissues around teeth and / or teeth related to orthodontics; and the risk assessment module is used for comprehensively assessing the bone health risk before orthodontic treatment based on the target parameters in combination with clinical information of the patient. According to the technical scheme, the bone health risk before orthodontic treatment can be comprehensively and accurately evaluated by comprehensively considering factors such as bone volume, bone windowing and bone splitting possibility of bone tissues after orthodontic stress and relative position relation of bones and teeth, so that a doctor is helped to formulate a more scientific and reasonable treatment scheme before orthodontic treatment; the treatment risk is reduced and the treatment effect is improved.

The invention provides an implant post-operation osseointegration dynamic evaluation method based on CBCT (cone beam computed tomography) data, which belongs to the field of oral medical image analysis and comprises the following steps: preprocessing CBCT image data; identifying the position of the implant; generating an interface area in a bone-implant contact area around the implant, and performing adaptive bone mineral density analysis by adopting a percentile dynamic threshold adjustment algorithm; detecting the micro-motion of the implant based on a six-degree-of-freedom rigid registration algorithm of the center of mass-main axis; calculating an ISQ value according to the bone volume, bone mineral density and total displacement of the implant, and training the multi-factor regression model by taking the bone volume, bone mineral density and total displacement as input and the ISQ value as an output label to obtain an ISQ estimation model; calculating bone mineral density, bone volume and total displacement according to the CBCT data at the current time point, and inputting the bone mineral density, the bone volume and the total displacement into an ISQ estimation model to obtain an ISQ estimation value; the invention further provides a dynamic evaluation system. And objective quantitative evaluation of the postoperative osseointegration state of the implant is realized.