35 results about "Tibial plateau fracture" patented technology

The invention provides a tibial plateau posterolateral bone fracture plate for a fracture at the attachment of the posterior cruciate ligament, which belongs to the field of medical devices. The tibial plateau posterolateral bone fracture plate comprises a handle-like part which is in adaptation with the proximal tibia posterior metaphysic, a main support plate part which is in adaptation with the tibia posterolateral articular lip and a side support part covering the bone surface at the attachment of the posterior cruciate ligament, wherein the front end of the handle-like is connected with the main support plate for constituting a T-shaped or L-shaped bone fracture plate whole, the bone fracture plate whole comprises a bottom side surface for being in contact with the bone and a group of screw holes, the handle-like part of the bone fracture part has a certain radian so as to enable the bone fracture plate to be completely attached on the posterior column of the tibial plateau and enable the main support plate part to be attached on the posterior lateral margin of the tibial plateau, and the side support plate part is covered on the bone surface at the attachment of the posterior cruciate. The embodiment of the invention is suitable for treatment of complex tibial plateau fractures, in particular to the fractures at the attachment of the posterior cruciate ligament, and can enable the fracture to heal better.

The invention discloses a tibial plateau fracture pressurizing and fixing device, and belongs to the technical field of medical apparatuses and instruments in the orthopedic department. The tibial plateau fracture pressurizing and fixing device is used for pressurizing and fixing a tibial plateau fracture accompanied by fracture piece separation. According to the technical scheme, a fixing steel plate and a pressurizing steel plate are located on the two sides of a tibial plateau respectively, and a pressurizing screw penetrates through the fixing steel plate, the tibial plateau and the pressurizing steel plate to be pressurized and fixed through a nut so that the tibial plateau can be fixedly connected with a fracture piece. Two circular grooves are formed in the pressurizing steel plate, a through hole is formed in the center of each circular groove, an adjusting piece is embedded in each circular groove, and a long groove is formed in each adjusting piece. The area of the pressurizing steel plate is far larger than that of an ordinary nut, and the damage caused by stress concentration to bone cortex is avoided; the long grooves of the adjusting pieces are quite conveniently aligned with the pressurizing screw, the requirement for built-in precision of the pressurizing screw is lowered a surgery incision can be quite easily reduced, and the operation process is accelerated. The defects of various existing conventional methods are overcome, the surgery effect is greatly improved, and the tibial plateau fracture pressurizing and fixing device is suitable for being applied to minimally invasive surgery.

The invention discloses a steel plate for fixing a tibial plateau fracture, and particularly relates to a knee joint plateau steel plate. The whole steel plate is in a Z shape and is composed of a steel plate head, a plate body and a steel plate tail. The steel plate head and the steel plate tail are in rotational symmetry with a rotational angle being 180 degrees. The steel plate head and the steel plate tail are respectively provided with a plurality of through holes. The thickness of the plate body is larger than the thickness of the steel plate head and the thickness of the steel plate tail. The thickness of the steel plate head and the thickness of the steel plate tail are respectively 1.2+/-0.3mm. The thickness of the plate body is 6.0+/-0.3mm. The two sides of the plate body are provided with grooves. The number of the through holes is three. The edge of the steel plate head and the edge of the steel plate tail are respectively in a circular arc shape. The knee joint plateau steel plate has the advantages that an operative route is simple, an operative wound is small, collapse translocation and lateral translocation can be prevented, molding is not needed, and the fixing effect is ideal.

The invention belongs to the technical field of medical devices and particularly relates to a teaching model for tibial plateau fractures in the department of osteology. The teaching model comprises a model body similar to the anatomic forms of the tibial plateau and the proximal end of the fibula; the model body is divided into a medial column, an intermediate column, a lateral column and a fibular column in sequence from the tibia to the proximal end of the fibula. The teaching model has the advantages that the teaching model is divided into four columns and nine areas; when bone blocks in the nine areas are stressed by an external force at the tibial plateau, due to differences of anatomical characteristics and adhesion structures, different displacement directions and collapse representations can be generated; due to redistribution of the blocking model for the fracture of the tibial plateau fractures, the part and the significance of the fractures are easy to understand and the damage mechanism is convenient to understand; on the basis of specific damaged parts, an operation scheme is determined according to the areas and the types of the fractures, and the selection of bone fracture plates is directly determined.

The invention belongs to the medical operation instrument, particularly relates to a tibial plateau fracture repositor used for reposition of schatzker III operation. The fracture repositor is characterized in that one end of a reposition rod is provided with an oval reposition support table and the other end thereof is connected with a reposition hammering rod which is provided with a handle; and the axes of the reposition rod form a certain included angle with the axes of the hammering rod. The fracture repositor has simple structure and convenient use, can reduce the pain of the patient, and has accurate reposition and good effect.

The invention provides a tibial plateau rear operation steel plate which is in a Y shape and comprises a tibial plateau rear outer side inclined part (1), a tibial plateau rear inner side inclined part (2) and a tibial plateau rear tibial bone part (3). An intersection corner part (A) of the tibial plateau rear outer side inclined part (1) and the tibial plateau rear inner side inclined part (2) adopts inner arc transition. The tibial plateau posterior operation steel plate is small in size, convenient to mount and demount, suitable for the situation that the posterior outer side and the posterior inner side of the tibial plateau are fractured at the same time, high in fixing capacity for bone blocks on the posterior outer side and the posterior inner side of the tibial plateau, and capable of being attached to the anatomical forms of the posterior outer side and the posterior inner side of the tibial plateau. The strength and use safety of the steel plate are improved, the risk of internal fixation failure is reduced, and recovery of tibial plateau fractures can be effectively promoted.

The invention provides a replacer for tibial plateau compression fracture. The replacer comprises a variable folding replacer body, two connecting rods, a threaded main body connecting rod, a propulsion sleeve, a stopper and a holding handle. Both ends of the lower part of the variable folding replacer are movably connected to the upper ends of the connecting rods separately, and the lower ends ofthe connecting rods are movably connected with the outer surface of the upper end of the propulsion sleeve. The threaded main body connecting rod is connected into the propulsion sleeve in a sleevedmode, the stopper sleeves outside the threaded main body connecting rod, the stopper is located on the lower part of the stopper, and the lower end of the threaded main body connecting rod is connected to the upper end of the holding handle. The replacer is simple in structure, low in cost and easy to use, can increase the contact area after entering the fracture area, reduces the window range ofthe proximal tibia, increases the contact area with the fracture surface, effectively reduces the side injury brought by the reduction of the tibial plateau fracture, and creates favorable conditionsfor subsequent surgery and patient recovery.

The invention belongs to the field of medical devices, and in particular provides to a customized beta-Ti-15Mo alloy-Al2O3 ceramic tibial plateau artificial bone scaffold. According to the mechanism of a fracture defect site of a patient's tibia plateau, the invention uses the reverse engineering and CAD technology to design a customized beta-Ti-15Mo alloy -Al2O3 ceramic tibial plateau artificial bone scaffold matching the defect site and uses a selective laser sintering technology to produce the scaffold, which comprises porous beta-Ti-15Mo alloy artificial bone trabecula and Al2O3 ceramic articular surfaces. The present invention fills the blank of tibial plateau artificial bone scaffold with the articular surfaces, is more in line with tibial plateau fracture anatomical characteristics, and provides a feasible scheme for customized treatment.

The invention relates to a precise supporting and repositioning device for a tibial plateau fracture. The precise supporting and repositioning device for the tibial plateau fracture is characterized in that an outer cannula is located above a lower outer cannula, a square groove and a circular groove are formed in the side wall of the outer cannula, the circular groove is connected with a swing-controlling knob, the square groove is located in the swinging direction of a supporting rod, a circular groove formed in the side wall of the lower outer cannula is connected with a rotation-controlling knob, and a square groove is connected with a vertical expander. A hollow groove is formed in the umbrella-shaped top end of a supporting umbrella, the supporting umbrella is connected with the supporting rod, and the lower end of the supporting rod is arranged in the outer cannula, a vertical clamping device is arranged below the supporting rod, located in the outer cannula and in the shape of a circular open ring. The top end of the swing-controlling knob is in contact with the vertical clamping device, the waist portion of a rotary clamping device is a groove, the upper end of the rotary clamping device is connected with the inner side wall of the outer cannula in a cast fabricated mode, and the top end of the rotary-controlling knob is in contact and connected with the groove of the waist portion of the rotary clamping device. The precise supporting and repositioning device for the tibial plateau fracture overcomes the defect of inaccurate repositioning, and is easy and convenient to operate, capable of conducting precise and quantitative repositioning on a collapsed articular surface, small in size, low in cost and convenient to maintain and replace.

The invention provides an external heat-clearing swelling-diminishing traditional Chinese medicine composition and a using method thereof, and belongs to the technical field of medicines. The composition is prepared from the following raw materials by weight: 12-18g of rheum officinale, 30-40g of moutan bark, 12-18g of scutellaria baicalensis, 30-45g of angelica sinensis, 12-18g of eupolyphaga, 12-18g of earthworm, 30-45g of caulis sinomenii, 20-30g of fructus aurantii immaturus, 12-18g of licorice root, 30-45g of radices trichosanthis, 30-45g of radix bupleuri, 30-45g of rhizoma alismatis, 30-45g of semen plantaginis, 18-24g of peach kernel, 45-54g of salviae miltiorrhizae, 30-45g of rhizoma atractylodis, 90-120g of rhizoma smilacis glabrae, 90-120g of phaseolus calcaratus, 10-20g of borneol and 1500-2000g of sodium sulfate. By means of external application, the traditional Chinese medicine composition is capable of remarkably shortening the interval between bone fracture and an operation, relieving tissue inflammatory response and quickly establishing new blood circulation, so that occurrence of tissue necrosis, infection, cut delayed healing and other complications after the operation can be effectively avoided, pains of patients can be relieved, and the treatment effect of a high-energy tibial plateau fracture operation can be improved.

The invention provides a tibial plateau outer side bone fracture plate, and particularly relates to the field of medical instruments. The fibula fixing plate comprises a plate body, a side wing and aside hook, wherein a plurality of screw holes are formed in the plate body, the side hook capable of crossing fibula small heads is arranged at the side part of the top end of the plate body, the sidewing is arranged on the other side of the plate body, screw holes are formed in the side wing, and the side wing and the side hook are opposite in direction. The invention aims to improve the internal fixation strength of the fracture, the fracture block is better restored, and strong fixation is provided for the postoperative early functional exercise of tibial plateau fracture patients.

The invention discloses a tibial plateau fracture panoramic visual operation system which is mainly composed of a device part and an image processing system part. Wherein the device part comprises a lens body, an image acquisition part, an optical fiber, a flushing channel, a drainage channel, a signal transmission line, a central control assembly and a terminal adapter; the image processing system part comprises an image preprocessing module, an image digitalization module, a normalization module, a smoothing module, a restoration module and a denoising processing module; the image depth processing module comprises a feature extraction module, an image segmentation module, an image matching identification module and an image fusion module; the panoramic visual operation system is specially provided for tibial plateau fracture, the defect that no blind operation is provided for any fracture affected part visual field in a traditional operation is overcome, meanwhile, an arthroscope is replaced, and the defect that the visual field of the arthroscope is limited is overcome.

The invention discloses a supporting device for tibial plateau fracture surgery, which comprises a handle rod and a front section bar hinged with the handle rod through a hinge ball, and an angle locking mechanism is arranged on the hinge ball; an extensible supporting plate is arranged at the front end of the front-section rod and is used for unfolding and supporting a bone surface during working; by arranging the extensible supporting plate, the small radial size can be conveniently kept when a surgical incision enters and exits, during working, the radial size can be expanded, a large bone supporting plane is formed, the surgical repair efficiency and the success rate are improved, the handle rod and the front section rod are hinged through the hinge ball, the holding angle of the handle rod is conveniently adjusted, and the surgical operation comfort is improved.