33 results about "Bone deformations" patented technology

The invention relates to a method for automatically determining, on a bone comprising a head portion contiguous to a neck portion, parameters for characterizing a bump deformation on the head-neck junction of the bone from acquired 3D medical image, the method comprising the following steps: i) constructing a 3D surface model of the bone; ii) fitting a sphere on the spherical portion of the head of the bone; iii) determining a neck axis characterizing the neck portion of the bone; iv) determining from the fitted sphere and the neck axis, a clock face referential on the head of the bone rotating around the neck axis; v) determining a 3D curve on the 3D surface model characterizing the head-neck junction of the bone; vi) determining, from the 3D curve, the summit of the bump deformation of the head-neck junction of the bone; vii) determining, from said summit of the bump deformation, first and a second parameters (α3D, iMax) characterizing the maximum bump deformation of the head-neck junction of the bone.

Described is a new bone healing method and class of bone fixation implants that change shape once implanted so as to minimize non-healing and speed the bone healing process. The bone fixation method involves shape changing implants that continuously hold the bones in apposition so that a gap does not form. Gaps in time allow non-bony tissue to infiltrate and stop healing. Furthermore, the implants actively compress bone to increase bone mass and strength. Bone cell pressure due to compression and electrical current flow due to bone deformation act to stimulate healing. The new implant designs also provide a scaffolding to conduct bone through the implant and across the healing bone interface. The methods and designs are applicable to but not limited to use for bone screws, plates, staples, rods, cylinders and external fixation devices.

There is provided a side rolling roller and a rolling method using the same. A side rolling roller according to an aspect of the invention may include: at least one inclined rolling unit performing a rolling process to form an inclined portion on a side of the slab; and at least one curved rolling unit performing a rolling process to form a depressed portion in connection with the inclined portion. Accordingly, the size of a defective region generated in the widthwise ends of a slab can be reduced in a rolling process, the slab can be prevented from being lifted, skewed, and / or separated by the side rolling roller to thereby reduce the size of the defective region generated in the widthwise ends of the slab, and defects occurring at the end of the slab caused by bulging and dog-bone deformation in the rolling process can be reduced.

The embodiment of the invention discloses a terminal device and a device control method and relates to the technical field of electronic information. A user can input information on sensors on the side face and the back face with other fingers when holding the terminal device with the single hand, the workload of the thumbs on a touch screen on the front face is reduced, the problems of muscle strain, bone deformation and the like caused after long-time use of the terminal device are solved, and the health of the user is protected. The front face of the terminal device is provided with the touch screen, the first touch sensor is arranged on the back face of the terminal device, and the second touch sensor is arranged on the side face of the terminal device. The terminal device is suitable for improving the information input manner of the terminal device.

The invention discloses a technique based on static pressure casting half shafts, and relates to the technical field of static pressure casting. The invention includes the following process: SS01 riser position setting, SS02 setting core heads at both ends of the top plate, SS03 feeding at position A in the middle of the half shaft, SS04 feeding at position C in the middle of the half shaft, SS05 casting mud core wall thickness Control, SS06 pre-embeds the combined core bone when making the core. The invention adopts the KW static pressure molding line to obtain a mold with high compactness and uniformity, and the product size accuracy is high; through the design of cold iron with riser and hot riser solidification and feeding technology, the adjustment of solidification has been achieved. The combined effect of sequence and feeding heat joints; the use of combined mandrel instead of welding reduces the welding process, improves the rigidity of the mandrel, and eliminates the problem of mandrel deformation.

A position-based fluid simulation control method and system in the field of computer image processing, which obtains control particles by voxelizing a target shape model provided by the user, and allows the user to provide bone motion data (BVH) files to smooth the obtained control particles Morph, generating a bone-driven animation sequence represented by particles. In order to control the shape of the fluid simulation to match the previously generated model represented by the control particles, three control constraints are applied to the fluid particles, which are density constraints, elastic constraints, and velocity constraints. The density constraint is used to drive the fluid particles to form the target shape, the elastic constraint can drive the fluid particles to track the rapidly changing target shape, and the velocity constraint is used to control the velocity of the fluid particles. The invention can maintain the physical details and characteristics of the fluid under the condition of controlling the fluid simulation to form the target shape set by the user. At the same time, by adopting a position-based physical calculation framework, it allows the use of arbitrarily large time steps, thereby realizing real-time large-scale fluid flow Simulation and control.