63 results about "Limb fracture" patented technology

The invention relates to a limb fracture repositor which comprises a stretching guide rod and a half-ring shaped needle bed track that is axially opened with a ring-shaped continuous manger along a ring-shaped circumferential end surface. The stretching guide rod is formed by connecting a plurality of sub guide rods by a coupling sleeve. An arc rack is embedded in the ring-shaped continuous manger. A needle bed positioning gear which is meshed with the arc rack is arranged in the ring-shaped continuous manger and is connected with an arc needle bed that is buckled on the half-ring shaped needle bed track. The arc needle bed is fixedly and radially connected with a cylindrical outer casing. A lifting pull rod is arranged in the cylindrical outer casing, the upper end of which is equipped with a lifting knob. The lower end of the lifting pull rod is equipped with a needle clipping device. The limb fracture repositor realizes the circumferential, axial and radial flexible adjustment of a fixed needle on a catagmatic limb, substitutes the treatment function of the manual reposition, has the advantages of precise reposition, being easy to master strength and convenient to adjust slimly and avoids the defects of the manual reposition.

The invention provides a fracture fixation device capable of realizing longitudinal dynamic sliding. According to the fracture fixation device, slide rails are arranged on a strip steel plate, sliding chutes are arranged on block steel plates, and the block steel plates sleeve the slide rails of the strip steel plate through the sliding chutes, and can slide dynamically and longitudinally on the strip steel plate; screw holes are reserved in the block steel plates, and the threads of the screw holes are matched with those on the tail of screws so that the block steel plates and the screws are integrated into a whole; grooves are reserved on the strip steel plate, and the screws are screwed into the skeleton after sequentially passing through the screw holes in the block steel plates and the grooves in the strip steel plate, and can slide in the grooves of the strip steel plate. According to the fracture fixation device, the fixation is stable, the healing time is short, the dynamic pressing and extension adjustment are integrated into a whole, and the healing and growth of the diseased bone are promoted; the limiting sliding fixation technology is adopted, the fracture end can be pressed continuously in the healing process of the fracture, no stress shielding is generated, and the longitudinal mechanical stress and final motion can be conducted on the fracture end, therefore, the fracture healing is promoted, the difficulties that the skeletal development is limited and the fracture healing is slow in the traditional static fixation model are solved, the treatment and rehabilitation time of patients are shortened, the burden of the patients is alleviated, and the fracture fixation device belongs to an ideal matched fixation apparatus specially used for treating limb fracture.

The invention discloses an automatic traction device for a lower-limb fracture setting operation. According to the invention, a supporting frame is of a triangular structure, is used for supporting alower limb of a patient to form and keep a leg bending state, and comprises a horizontally-arranged supporting bottom surface, and a thigh bearing surface and a shank bearing face which are oppositelyarranged two ends of the supporting bottom surface, wherein the end parts of every two adjacent surfaces are hinged; and the lengths of all the surfaces can be adjusted and locked through edge adjusting mechanisms. A tibia kirschner wire mounting position is provided with two tibia kirschner wire mounting structures which are respectively arranged at two sides of the shank supporting surface. Twothighbone kirschner wire mounting positions are arranged in parallel at an interval, and each thighbone kirschner wire mounting position is provided with two thighbone kirschner wire mounting structures which are respectively arranged at two sides of the thigh supporting surface.

The invention discloses a porous tantalum metal bone connector which is applicable to treatment of limb fracture nonunion, bone nonunion, bone defects and the like. The porous tantalum metal bone connector comprises a body. The two ends of the body are each provided with a medullary space handle. The medullary space handles and the body are integrally formed. At least one screw hole is formed in each medullary space handle. The porous tantalum metal bone connector further comprises connection screws matched with the screw holes. According to the porous tantalum metal bone connector, the structure that the medullary space handles and the body are integrally formed is adopted, the better mechanical strength is achieved, and the risk of prosthesis breakage is effectively reduced. Screw rotating prevention grooves are formed in the medullary space handles, the bone connector and corresponding bone tissue can be fixed, and the problem that an artificial prosthesis is likely to rotate and loosen is effectively reduced. According to the porous tantalum metal bone connector, the preparation method is simple, the cost is low, implementation and clinical application are facilitated, and the requirement of a majority of patients is met.

The invention discloses a first-aid external fixation support used in the orthopedics department and suitable for various types of limb fractures. The first-aid external fixation support comprises an L-shaped fixing plate, wherein the L-shaped fixing plate consists of two fixing plate bodies, the two fixing plate bodies are connected through a short connecting shaft, a groove is formed in the upper surface of the L-shaped fixing plate, an inflatable bag is arranged in the groove, fixing side plates are arranged on one side of the upper end of each of the two fixing plate bodies of the L-shaped fixing plate, the limbs of a patient can be fixed by the inflatable bag, fixing is more convenient, and the limbs of the patient can be thoroughly fixed through the fixing side plate bodies, so that the fixing is more convenient. The pressure between the limbs of the patient and the device can be detected through a pressure sensor, and secondary hurt to the patient due to too small or large pressure is prevented. The first-aid external fixation support used in the orthopedics department and suitable for various types of limb fractures is simple in structure, simple and convenient to operate and capable of fixing limb fracture parts of the patient, makes fixing more convenient and provides convenience for a doctor.

The invention relates to the technical field of medical facilities, and in particular relates to an apparatus used for fracture fixation. The technical scheme is as follows: the rapid external fixatorspecial for limb fracture is characterized by comprising an outer plate (1) and a middle plate (2) which are used for fixing the fracture limbs, a movable connecting device used for enabling the outer plate (1) and the middle plate (2) to make telescopic movement along the radial direction, and a fixing device used for realizing fixing when the outer plate (1) and the middle plate (2) arrive at acertain position through telescopic movement. For the fixator, the outer plate, the middle plate and an inner plate with the telescopic lengths are used for fixing the fracture limbs, so that the fixator special for limb fracture provided by the invention can be suitable for facture of various lengths, due to the arrangement of folding devices, the fixing for the parts needing bending including the elbows can be realized, due to the arrangement of tying belts and hook-and-loop fasteners, the fracture limbs can be directly fixed without bandages, and thus the fixing efficiency is improved.

The invention discloses a limb fracture reduction system. The limb fracture reduction system comprises a C-arm machine, a reduction device and a processor, wherein the reduction device can be used for carrying out mechanical reduction and correction on a fractured bone; the processor is in signal connection with the C-arm machine; the C-arm machine is used for photographing the fractured bone and obtaining the image information of the fractured bone; the processor can be used for reading the perspective image of the fractured bone, which is obtained by the C-arm machine, and controlling the coordinating operation of a first driving motor, a second driving motor, a third driving motor and a fourth driving motor of the reduction device according to the perspective image of the fractured bone; the reduction device can be used for ensuring that the limb fracture reduction system has four degrees of freedom; the four driving motors move under the control effect of the processor according to obtained traction dimension parameters so as to ensure that a mechanical arm at the traction end drags the fractured bone to translate, lift, rotate and stretch according to a desired trajectory and performs rapid traction and reduction of the fractured bone. The limb fracture reduction system can be used for accurately and reliably reducing the fractured bone, reducing operation difficulty, enabling operation to be rapidly and accurately performed and meeting the requirements on minimally invasive surgery.

The invention provides a cross fixator for head, neck and limbs fractures. The fixator comprises a cross clapboard, wherein the cross clapboard is formed by connection of a vertical clapboard and a horizontal clapboard through a sheet axis 2; a cervico-occipital top cap is connected to the upper end of the vertical clapboard, a chest saddle spinal fixing band is connected with the lower end of the horizontal clapboard in the middle of the vertical clapboard; the other end of the chest saddle spinal fixing band is connected with a chest saddle; the upper end of the chest saddle is provided with a mandible fixed holder; a supporting column of the mandible fixed holder is arranged between the mandible fixed holder and the chest saddle; and two ends of the horizontal clapboard are connected with a shoulder lock fixing band respectively, and the other end of each shoulder lock fixing band is connected with the chest saddle. The cross fixator has the advantages of simple structure, convenience in operation, strong function compatibility, strong emergency response and convenience in portability, and is particularly suitable for front-line field rescuing of disasters, so that a wounded person with head and neck wounds can be steadily transferred to a fixed stretcher with all speed, and batch rescue and hemostasis to multiple trauma and multiple fracture can be implemented with all speed.

The invention discloses a fracture reduction assisting instrument, which can perform limb fracture reduction, to overcome some disadvantages of the conventional fracture reduction, improve the work efficiency and medical quality of doctors, and reduce pain of the wounded person. The fracture reduction assisting instrument comprises a support body for mounting a limb fixing device, the limb fixing device for fixing two ends of a fracture site, and a mounting seat for mounting the fracture reduction assisting instrument on a fixed object; the limb fixing device comprises two limb fixing parts, wherein at least one limb fixing part is mounted through a sliding part sliding in a length direction of the support body; the other limb fixing part is mounted through a rotary fixing seat rotating along an axis of a limb. The invention has advantages that the limb fracture reduction assisting device can be use cooperatively with an ordinary X-ray machine; the limb fracture reduction assisting device greatly facilitates the operation of a fracture reduction doctor, saves time and labor, realizes precise reduction, improves the work efficiency and quality, reduces sufferings of patients, and facilitates future follow-up re-examination.

The invention discloses an impact wearing comfort level test system for the skin of a limb. The system comprises a limb fixing device, an extrusion wearing device, an impact nested wearing device anda support platform; the support platform comprises a platform pedestal, a first workbench and a second workbench; the first workbench is fixedly arranged on the platform pedestal; the second workbenchis arranged over the first workbench, and can move relative to the firs workbench; the extrusion wearing device and the impact nested wearing device are arranged on the second workbench; and the limbfixing device is arranged on the platform pedestal and can move on the platform pedestal. The wearing condition under a complex stress generated by contact between the skin of the limb fracture and an artificial limb can be determined accurately and vividly.

The invention discloses a combined elastic external fixation bracket for limb fracture, and relates to the technical field of fracture external fixation. The combined elastic external fixation bracketcomprises two reset brackets, a plurality of drawbars and a plurality of fixing assemblies. The reset brackets are connected by the drawbars, the fixing assemblies are fixed on the reset brackets, the angle can be adjuted, and locking can be achieved. The reset brackets are provided with through holes and through arc grooves. Each drawbar includes connecting bars at both ends and an intermediatefunction bar, and the function bar is a resilient element bar or a non-elastic element bar. The nut end of a function bolt of each fixing assembly is provided with a semicircular groove for containinga kirschner wire, and the function bolt penetrates the corresponding through arc groove of a semicircular bracket to be locked by a function nut. The bracket can achieve the slight joint activity after cross-joint fixing for the limb fracture, the joints fixed and not fixed can be moved actively to facilitate functional exercise and rehabilitation of patients, and the bracket is suitable for fracture cross-joint fixing popularization and application.

The invention provides a minimally-invasive four-limb fracture three-dimensional traction restoring and fixing device which comprises a first fixing assembly. The first fixing assembly comprises a first fixing ring, a first supporting block, a first spherical hinge support and a first thread needle. The first supporting block is detachably connected to the first fixing ring. The first spherical hinge support is located on one side of the first fixing ring. One end of the first spherical hinge support is fixedly connected with the first supporting block, and the other end of the first sphericalhinge support is detachably connected with the first thread needle. The first fixing assembly further comprises a second supporting block, a second spherical hinge support and a second thread needle.The second supporting block is detachably connected to the first fixing ring. The second spherical hinge support is located on the other side of the first fixing ring. One end of the second sphericalhinge support is fixedly connected with the second supporting block. The other end of the second spherical hinge support is detachably connected with the second thread needle. The adjustment efficiency of the position and posture of the thread needles can be improved, and the fracture restoring process can be conducted through a minimal incision.

The present invention relates to a Chinese medicine Shujin Huoluoyin for effctively curing limb-kinetic apraxia after limb fracture healing. Said Chinese medicine is made up by using 9 Chinese-medicinal materials of millettia root and stem, bushy knotweed root, drynaria root, achyran thes root, ground pine and others as raw material. Said invention also provides its preparation process and application method.

The invention discloses a traditional Chinese medicine fuming-washing decoction preparation for treating anchylosis after limb fracture of children. Traditional Chinese medicine doctors consider that the anchylosis after limb fracture is mainly caused by extracasated blood accumulation and stagnation of qi and blood. The traditional Chinese medicine fuming-washing decoction preparation selects traditional Chinese medicines of entada phaseoloides, wild lacquer tree root, lotus plumule, garden balsam, umbrella sedge, paramichelia baillonii, laxflower pottsia root, jewelweed stem and leaf, ficus lyrata and Sapindaceae Allophylus viridis to prepare the fuming-washing decoction preparation. The fuming-washing decoction preparation can be used for fuming and washing the affected part of the patients, through the clinical test, the total effective rate is 97.3%, the curative effect is obvious, and the recurrence rate is low.

The invention relates to a medical teaching aid, in particular to the manufacture of simulated subcutaneous tissue used for simulating skin of high-simulation human body model and TPE and other thermoplastic elastic bodies for simulating muscles, a skeleton is formed by using hard PVC and a 10% X-ray contrast agent mould and is provided with a simulated bone marrow cavity, and a metaphyseal end isprovided with simulated cancellous bone; the skeleton can be developed on an X-ray film without metal artifacts; the limbs on one side are made into various fractures with fracture lines/sections andare provided with a full-automatic blood circulation simulator for simulating the connection of arterioles; a simulated joint dislocation is made on the other side of the limbs without fracture; thefirst aid of limbs fracture can be fixed by a small splint, external fixation such as small splint and the like can be adopted after the fracture is manually restored, and complicated fracture can betreated by internal fixation of operation, so that the injured artery has lifelike small artery jet bleeding during the operation; the model can be used for carrying out various orthopedic operationssuch as bone traction, reduction of joint dislocation and the like, the model is used for carrying out orthopedic emergency treatment and various orthopedic operation skills training on medical students in the department of bone injuries in medical colleges and hospitals, and the teaching effect is obviously improved.

The invention relates to the technical field of medical teaching aids, in particular to a standard patient for examination on spinal and limb fracture emergency fixation and carrying training. The standard patient comprises a high imitation body model and an electronic monitoring/warning device, and is characterized in that the high imitation body model has imitation humeral fracture, ulnar fracture, radial fracture, tibial fracture and fibular fracture under external fixation with small splints, and also has imitation cervical compression fracture near which an angle displacement switch is provided, the neck is under external fixation with a neck collar, and an angle displacement switch is arranged at imitation lumbar vertebral fracture; an electronic monitoring/warning device control panel is arranged on the chest of the high imitation body model; the electronic monitoring/warning device is built in the chest and includes a lithium battery warning speech module, a vibration sensor switch and a speaker; speech and red light warnings are automatically given upon carrying errors. The standard patient for examination on spinal and limb fracture emergency fixation and carrying training is suitable for the training and examination on medical students' and in-service medical personnel's spinal and limb fracture fixation and carrying emergency skills in medical colleges and teachinghospitals.

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.

The invention relates to an external fixator for limb fractures, and belongs to the field of medical apparatuses. The external fixator comprises reducing fixators, bone needles, telescopic rods, boneneedle fixing rods, bend rod pillars and a jack screw, wherein the bone needle fixing rods are mounted on the reducing fixators; fixing holes are respectively formed in two ends of each of the bone needle fixing rods and are used for allowing the bone needles to be placed and fixed; the bend rod pillars are respectively mounted on the left sides and the right sides of the reducing fixators; the two telescopic rods are respectively connected with the bend rod pillars on the two adjacent reducing fixators; and the telescopic rods are regulated to regulate the relative position of the two adjacent reducing fixators. The external fixator solves the problem that a conventional unilateral external fixation frame system is limited in functions when being used for an orthopedic surgery, and besides, also solves the problems that an annular external fixation frame system is single in functions, complex in structure, high in price and difficult for nursing. Further, the invention provides an orthopaedics unilateral external fixation device which is complete in functions, low in price and easy tor nursing.

The invention discloses a reduction and fixation integrated operation system for limb fractures and a control method. The system comprises an electric operating table, a mechanical arm and a demonstrator, wherein the mechanical arm is connected to the electric operating table through a movable base, the tail end of the mechanical arm is used for being connected with a broken bone clamping device,and a posture sensor is arranged; a connecting device is arranged on the electric operating table and used for being connected with a bone external fixing device; and the demonstrator is connected with the posture sensor and the mechanical arm and used for obtaining the posture of the tail end of the mechanical arm in real time and sending a control instruction to the mechanical arm. The bone external fixing device and the broken bone clamping device are connected to the operating table, and through cooperation of the bone external fixing device and the broken bone clamping device, the two processes of reduction and fixation can be achieved on the basis of one device.