63 results about "Limb fracture" patented technology

The invention discloses an orthopaedics department hole drilling sighting device, and relates to a drill bit guide surgical operation tool used for treating limb fracture operations. The orthopaedics department hole drilling sighting device is characterized by comprising an orthopaedics department hole drilling sighting device sleeve, an orthopaedics department hole drilling sighting device rod and an orthopaedics department hole drilling sighting device handle; a sighting incline hole is formed in the orthopaedics department hole drilling sighting device sleeve, the clinic sighting angle can be conveniently selected in the operations, marble holes are formed in one side of the orthopaedics department hole drilling sighting device sleeve, and a marble and a compression spring are installed; a conic through hole is formed in the middle of the orthopaedics department hole drilling sighting device rod, and angle adjustment is carried out through the conic through hole in the operation process; a marble groove is formed in one end of the orthopaedics department hole drilling sighting device rod, so that the marble in the orthopaedics department hole drilling sighting device sleeve is conveniently clamped into the marble groove; conic threads are arranged at the head of the orthopaedics department hole drilling sighting device rod and are in fit with threaded holes in an internal fracture fixation steel plate.

The invention discloses an automatic limb fracture reduction method and an automatic limb fracture reduction system. The automatic limb fracture reduction method comprises the steps that tomoscan is conducted on the fractured part of a patient through X rays, fracture information is obtained through a detector matched with the X rays, a digital-to-analog converter is used for converting the fracture information into digital quantity, and the digital quantity is made to form an image matrix through a computer; denoising, enhancement, restoration, segmentation and feature extraction are conducted on the image matrix, so that a second-level image is formed; binaryzation and edge extraction are conducted on the second-level image, so that approximation of a contour line is realized, and a third-level image is formed; the third-level image is vectorized, and a three-dimensional model is reconstructed; fitting is conducted according to the edge curve of the fractured part in the three-dimensional model, and a three-dimensional movement trajectory required by fracture reduction is determined through the computer; traction reduction is conducted on the fractured part through a traction machine under the control of the computer. By means of the automatic limb fracture reduction method and the automatic limb fracture reduction system, the fracture reduction difficulty is lowered to a great extent, and mechanical reduction accuracy is improved.

The invention relates to the technical field of orthopaedic reduction tools, and especially relates to an auxiliary alignment device for the docking of limb fractures. The alignment device includes abottom frame, telescoping rods, an elevating plate, a top plate, T-shaped sliding rails, T-shaped sliding cylinders, an adjusting rod, an elevating screw, a locking screw, arc-shaped support plates, semi-circular support plates and a locking threaded cylinder; the two telescoping rods are symmetrically fixed on support plates on the two sides of the bottom frame; the elevating plate is inlaid between the upper ends of the outer cylinders in the middle parts of the two telescoping rods; the arc-shaped support plates are fixedly inlaid on the top surfaces of the two T-shaped sliding cylinders onthe left side; and the outer walls of the semi-circular support plates are in mutual fitting with the inner walls of the arc-shaped support plates. The alignment device is reasonable in structural design; the supporting heights of the semi-circular support plates can be adjusted through the elevating screw according to needs; the limbs on the two ends of a broken bone can be supported through thesemi-circular support plates and fixed through fixing belts; and straight traction and docking reset can be performed on the two ends of the broken bone through the adjusting rod along the T-shaped sliding rails, and manual holding is not needed, so that the alignment device is time-saving and labor-saving in operation, and bone-setting operation can be achieved.

The invention provides a skeletal traction reposition fixing device for treating limb fractures. The device comprises a repositioning bracket, a traction cross bar, a locking piece, a screw tightener,a supporting rod, a traction mechanism, a fixing mechanism and a first adjustable triangular bracket. Before traction, the direction of a traction force line can be adjusted by means of the repositioning bracket, the traction cross bar and the screw tightener; after traction, the direction of the traction force can be changed again by means of the triangular bracket by means of manual adjustment,so that the problem that the fracture end rotates and overturns inside and outside is solved; the repositioning bracket is of a triangular foldable structure, and is convenient to carry, quick to unfold during use and high in stability; the traction force is central traction by means of the triangular bracket, so that the fracture is repositioned favorably. According to the device provided by theinvention, fixing mechanisms are of immovable structures, so that the problem that the traction device presses limbs is avoided.