77 results about "Deformity correction" patented technology

An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and / or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.

An improve spinal surgical implant used primarily in the posterior aspect of the spinal column for spinal reconstruction; revision surgery; deformity correction; and / or tumor surgery and / or trauma surgery of the cervical, thoracic and / or and lumbo-sacral spine.

An improve spinal surgical implant used primarily in the posterior aspect of the spinal column for spinal reconstruction; revision surgery; deformity correction; and / or tumor surgery and / or trauma surgery of the cervical, thoracic and / or and lumbo-sacral spine.

An improved spinal surgical implant used primarily in the posterior aspect of the spinal column for spinal reconstruction; revision surgery; deformity correction; and / or tumor surgery and / or trauma surgery of the cervical, thoracic and / or lumbo-sacral spine.

A computer implemented system for adjusting the placement of an implant in a patient through the use of a dimensioned grid template placed relative to patient anatomy on a fluoroscopic machine and a method to digitally quantify alignment parameters is provided. This system can be used for determining: 1) leg length, offset, and cup position during arthroplasty replacement surgery; 2) fracture reduction / correction position during trauma procedures and 3) an apparatus to be used for deformity correction planning is provided; 4) placement and positioning of instruments and implants relative to bone and anatomical architecture; 5) bone anatomy boundary parameter identification relative to reaming and cutting landmarks of bone.

The invention relates to a method for correcting deformity and identifying an image of a go notation in real time. The method includes the following steps: firstly, conducting the deformity correction on the image: fixing the positions of a go board and a camera, determining the coordinates of three hundred and sixty one piece placing points on the go notation image acquired by the camera and determining the size of a rectangle frame to be calculated in the identification of pieces; and secondly, the identifying the go pieces: acquiring one frame of grayscale image as foreground, conducting differential operation with a background image to obtain a difference image, calculating parameters such as the grayscale average value of an effective pixel in the rectangle frame of each piece placing point, the quantity of the effective pixels, and the like one by one in the difference image according to the coordinates of the piece placing points, comparing the parameters with a set threshold, then detecting go notation data such as the colors and the positions of the pieces as well as piece taking, piece falling and the like according to a current party placing the pieces and go board information, and then updating the background image to the foreground image. The method adopts an algorithm which is concise, correct and efficient, can adapt to a certain extent of illumination change and especially can be applicable to the identification of a go notation in real time under an embedded system.

The invention discloses a panoramic video stitching method and device. The panoramic video stitching method is used for stitching video images acquired by front-end devices to be stitched into a panoramic video image through a client and comprises the steps of binding the front-end devices to be stitched into a resource group, acquiring four vertices of a stitched video image part of each front-end device so as to form a cut quadrilateral corresponding to each corresponding front-end device, calculating the deformity correction and conversion matrix of each front-end device according to the acquired vertices and a set standard rectangle, converting the video images acquired by all the front-end devices, and then, laying out the converted video images according to set position information, so as to form and display a panoramic video image. The panoramic video stitching device disclosed by the invention comprises a configuration module, a vertex acquisition and matrix generation module and a stitching module. According to the method and the device, disclosed by the invention, the deformity correction and conversion can be carried out by the front-end devices or the client so as to realize panoramic stitching, and the requirements on the performance of matrix conversion equipment are not high, so that the method and the device are particularly applicable to the upgrade and development of old items.

A method of generating a correction plan for correcting a deformed bone includes inputting to a computer system a first image of the deformed bone in a first plane and inputting to the computer system a second image of the deformed bone in a second plane. Image processing techniques are employed to identify a plurality of anatomical landmarks of the deformed bone in the first image. The first image of the deformed bone is displayed on a display device. A graphical of the deformed bone is autonomously generated and graphically overlaid on the first image of the deformed bone on the display device, the graphical template including a plurality of lines, each line connected at each end to a landmark point corresponding to one of the anatomical landmarks. A model of the deformed bone may be autonomously generated based on the graphical template.

This distraction device comprises a rod (1), a second rod (2) and means to control the translation of one rod relative to the other (3), so as to cause the desired distraction or compression. Each rod (1) and (2) has a first end, respectively (11) and (21), which receive means to link to a part of the organism such as hooks or screws for vertebra, ribs or the pelvis, and a second end, respectively (12) and (22), linked to the means to control the translation of one rod relative to the other (3) such that the direction of the first end (11) toward the second end (12) of the first rod (1) is roughly the same as the direction of the first end (21) toward the second end (22) of the second rod (2). The distraction device thus roughly forms a J, the bulging and rigid part of which is located outside the area concerned by the surgical treatment, facilitating its implantation. It is useful for straightening of the spine and bone lengthening, deformity correction or transport, depending on the means used to link to the organism.

The subject of this invention is a system and method for distortion adaptation for use with an imaging grid alignment apparatus (analogue or digital) and method of intra-operative use for joint replacements, spine, trauma fracture reductions and deformity correction and implant placement / alignment. The system provides for ,al time dynamic position tracked distortion-adaption grid.

A method of generating a correction plan for correcting a deformed bone includes inputting to a computer system a first image of the deformed bone in a first plane and inputting to the computer system a second image of the deformed bone in a second plane. Image processing techniques are employed to identify a plurality of anatomical landmarks of the deformed bone in the first image. The first image of the deformed bone is displayed on a display device. A graphical of the deformed bone is autonomously generated and graphically overlaid on the first image of the deformed bone on the display device, the graphical template including a plurality of lines, each line connected at each end to a landmark point corresponding to one of the anatomical landmarks. A model of the deformed bone may be autonomously generated based on the graphical template.

A nasal and maxillary growth enhancer includes: a nose retracting member connected with a face mask, which is a maxillary protraction appliance, to be provided with an anterior traction power, the nose retracting member including: a nose grip having elastic arms branched from the top of a connector into two parts and inclined inwardly and nasal septum holders respectively formed on ends of the elastic arms to hold the nasal septum (located on the centerline between the two nostrils) after being inserted into the nostrils; the connector adapted to support the nose grip and a hook; and the hook formed on the bottom of the connector. The nasal and maxillary growth enhancer can correct the Class III malocclusion, which is called a ‘jutting chin’, and provide an effect of deformity correction by promoting the nasal and labial growth without undergoing a plastic surgery.

A method of correcting a bone deformity includes fixing first and second support members to first and second fragments of a bone, respectively. The first support member may have a receiver connected thereto. First and second tracking devices are connected to the first and second bone fragments, respectively. A deformity correction plan is determined, and a position of the first support member is adjusted relative to the second support member based on the plan. Location data is transmitted from the first and second trackers to the receiver. Based on the tracker location data, a real position of the first and second bone fragments is determined. The real position of the first and second bone fragment is compared to the deformity correction plan, and the deformity correction plan is reprogrammed based on the comparison. The first and second support members may then be adjusted based on the reprogrammed deformity correction plan.

An implantable fixation system for fusing a joint between a first bone and a second bone. The system may include an anchor, standoff, bolt, and cortical washer. The system may be implanted across the joint along a single trajectory, the length of the system adjustable to provide compressive force between the anchor and the cortical washer. The system may be implanted across a tibiotalar joint with the anchor positioned in the sinus tarsi. A spacing member may be inserted between the two bones and the fixation system implanted to extend through an opening in the spacing member. The spacing member may be anatomically shaped and / or provide deformity correction. An ankle arthroplasty system may include a tibial plate, a talar plate, and a bearing insert. The plates may be anchored to the tibia and talus along a single trajectory. The ankle arthroplasty system may be revisable to a fusion system.

The invention discloses a temporomandibular joint deformity correction system and a method for making a personalized deformity correction device. The method comprises 1, analyzing an occlusal function through an occlusion analysis system to determine an occlusion position, 2, preparing original upper and lower jaw models according to the occlusion analysis system and re-positioning an occlusion plate through patient wearing with the original upper and lower jaw models, 3, carrying out re-examination on the patient each month, 4, after re-examination, determining whether the occlusion position is correct and carrying out deformity correction, 5, stabilizing the occlusion position and carrying out a tooth arrangement test, and 6, producing the personalized deformity correction device according to the tooth arrangement model after the tooth arrangement test. Compared with the prior art, the system realizes personalized tooth arrangement through combination of an adjustable frame, function analysis and projective measurement analysis according to the patient's skull surface type, utilizes a covering material to precisely control the position of the occlusion position, prevents occlusion position change, evaluates the tooth movement amount in a visual state through 3D data scanning before and after tooth arrangement and provides good deformity correction treatment guidance for later treatment.

A method for providing 3-dimensional deformity corrections for bones, said method comprising the steps of: acquiring an image of a bone of interest; acquiring contour points and landmark points, in a 2-dimensional co-ordinate system; obtaining a 3-dimensional deformed bone comprised in the foon of a mesh with mesh parameters; and obtaining initial anatomical regions, axes, landmarks, and parameters from said acquired contour points and landmark points; computing correction values and correction angles based on proximal anatomical axis (pSRL), distal anatomical axis (dSRL), proximal mechanical axis (pJRL), and / or distal mechanical axis (dJRL); applying torsional correction and / or angular correction based on said computed correction values, said computed correction angles, and pre-defined criteria; to obtain a simulated corrected bone model with at least one of corrected anatomical regions, landmarks, axes, and parameters, said correction being provided in terms of one of torsional and or bending deformity correction.

A method is disclosed for increasing the stiffness of an intervertebral disc between vertebral bodies. The method includes providing a syringe with a needle approximately in the range of 16 to 25 gauge; providing a material having a first stage with a first viscosity adapted to flow through the needle, the material having a second stage with a second viscosity greater than the first viscosity, the second stage material having a stiffness in a range of 1.0-5.0 MPa; testing the annulus fibrosus of the disc to ensure that the annulus fibrosus has sufficient continuity so as to retain the first flowable stage material when subsequently injected into the disc; inserting the needle into the annulus fibrosus; injecting the first stage material into the disc; and permitting the first stage material to become the second stage material so as to form a load bearing implant in the disc.

The invention discloses an orthopedics department deformity correction and bone fracture reduction fixing device and a processing method of the fixing device. The fixing device comprises an outer fixing frame or an outer fixing plate, wherein the outer fixing frame or the outer fixing plate is used for fixing needles inserted into the bone tissue, at least one end of the fixing needles is exposed out of the skin, in addition, the end part, exposed out of the skin, of the fixing needles is the end to be fixed, the outer fixing frame comprises a first fixing frame body and a second fixing frame body, the outer fixing plate is a fixing plate used for fixing all of the fixing needles inserted into the bone tissue to be fixed, and the outer fixing plate comprises one or several fixing plate blocks. The processing method comprises the following steps of image information collection before reduction, computer virtual reduction, fixing device structural design and fixing device processing. The fixing device provided by the invention has the advantages that the automatic reduction function is realized, the structure is reasonable, the fixation effect is good, and the defects of reduction deformity correction difficulty, surgery operation complexity, overdependence on the clinic experience of doctors and the like in the existing bone fracture reduction or deformity correction process can be effectively overcome.

The invention provides an anti-seizure deformity correction external fixator. The fixator has 6 degrees of freedom and mainly consists of a proximal ring, a distal ring, 6 length adjustable branches,an adjustment knob, a sliding self-locking needle clip, T-ring grooves and a kirschner wire. The deformed bone is fixed on a fixing ring of the fixator by the kirschner wire, the T-ring grooves are formed in the proximal ring and the distal ring, and the self-locking needle clip can slide in the grooves. The posture of a moving platform can be changed by adjusting the length of a branch chain andlocking some moving pairs to achieve correction of three-dimensional deformity such as angle, misalignment, rotation or separation. Three ball joints on each branch chain can achieve separate locking,can effectively solve the problems of interference and seizure during the correction process, and achieve correction of all rotation and displacement deformities. The sliding self-locking needle clipcan effectively prevent complications like needle infection, a frame and a support rod are not required to be changed in the correction process, the fixing is reliable, and the fixator is convenientto use.

A dimensioned grid apparatus for determining: 1) leg length, offset, and cup position during arthroplasty replacement surgery; 2) fracture reduction / correction position during trauma procedures and 3) an apparatus to be used for defomity correction planning is provided.

The invention relates to a fixed-angle-rotation-center-parallel external fixator for malformation correction of a shinbone. The external fixator comprises a proximal cycle, a distal cycle, a front branched chain and a rear branched chain, wherein the rear branched chain is composed of two side bars, a C-shaped ring and a short branched chain. The upper part of the short branched chain is connectedwith the C-shaped ring to form a first revolving pair, and the C-shaped ring is connected with the two side bars to form a second revolving pair. During the malformation correction, axes of rotationof the first and second revolving pairs are converged to an angle center of rotation of a malformed bone, and then, a center of rotation of the external fixator and the angle center of rotation of themalformed bone can be superposed, so that doctors can conveniently observe clinical conditions of the current malformation correction in real time, and radiation intake resulting from X-ray film photographing is reduced. According to the external fixator, rotating deformity of two degrees of freedom of the malformed bone can be corrected, shortened malformation along a bone axis direction can also be corrected, and then, the malformed bone can be subjected to two-rotation-one-moving spatial 3-degree-of-freedom malformation correction.

The invention relates to an ankle-foot external fixation device for talipes equinus deformity correction. The ankle-foot external fixation device comprises a movable platform, distal and proximal fixation rings, two linear motion branch chains, a fixed-point rotation branch chain and a plurality of needle penetrating devices. The needle penetrating devices connect the external fixation device witha patient, the two linear motion branch chains and the fixed-point rotation branch chain adopts the arrangement mode of parallel connection, the movable platform and the distal and proximal fixationrings are jointly connected, and by manually adjusting the motion branch chains and the fixed-point rotation branch chain, the movable platform can drive the feet of the patient to complete the deformity correction. Through the structure, the external fixation device can meet the demands of different patients, the movable platform only has three rotation degrees of freedom required for the talipesequinus deformity correction, in the deformity correction process, the rotation center of the movable platform always coincides with the motion center of the knee joint of the human boy, and the accuracy and safety of the deformity correction are ensured. The external fixation device is relatively simple in structure, and the operation complexity of physicians and the wearing difficulty of the patients are reduced.

The invention discloses a fixing device comprising a first elastic plate whichtwo ends are provided with a mounting seat, the mounting hole of the mounting seat is provided with a second elastic plate, the rear side surface of the mounting seat is provided with a hinge seat, the hinge shaft is hinged with the front end of the movable rod, the rear end side surface of the movable rod is provided with a fixing clamp, the lateral surface of the movable rod is provided with a fixing clamp, and the width of the first elastic plate and the second elastic plate is adjusted through the length of the long axis of the screw thread between the vertical rod, the length of the second elastic plate between the mounting seat is adjusted, and the effective dimensions of the first elastic plate and the second elastic plate are adjusted, so that the angle of the joint waist and the movable rod can be adjusted, the convenient leg can be adjusted to the proper treatment and fixing positions, and the work burden of the medical staff is lessened.