33 results about "Articular fracture" patented technology

The present invention relates to a bone plating system and method for fracture fixation of bone. The bone plating system includes a bone plate, at least one locking screw, and at least one non-locking screw. The bone plate has locking holes with threads and non-locking holes. The locking screws have a shaft with a thread for engaging bone and a head with a thread configured and dimensioned to mate with the thread of the locking holes. The non-locking screws have a thread for engaging bone and a non-threaded head. Both the locking and non-locking screws remain seated in their respective holes for substantially as long as the bone plate is implanted. The non-locking screws compress the bone plate against the bone and hold fracture reduction while the locking screws are secured to the plate at a fixed angular relationship. The mixed fixation achieved by this bone plating system and method is particularly useful for treatment of per-articular fractures.

A multi-articular fracture fixation device having a adjustable modulus of rigidity. The implant apparatus includes modular tensioning elements that can be disposed in a ball-and-socket linear array along a length of connecting wire within a medullary canal or percutaneously. The connecting wire includes a threaded end and a stop member at the opposite end, and when a lock nut is threadably disposed on the threaded end and tightened, at least two of the tensioning elements in the array may be swiveled relative to one another and arranged to introduce curvature as desired along the length of the array. Tightening the lock nut is also employed to adjust the modulus of rigidity to be retained during healing.

Embodiments of present invention include modular bone plate systems and various methods of bone fixation using the same. The system makes available to the practitioner an array of plates, screws and pins with different sizes, curves, and functions to overcome complication of the procedure with minimal rework and soft/hard tissue intervention, treat osteoporotic bones and articular fracture to name a few.

Provided herein is an osteosynthesis device for articular fracture fixation, more particularly for fixation of shoulder, knee, elbow, ankle and wrist fractures. The osteosynthesis device comprises an articular supportive plate for supporting the articular surface of a long bone, said articular supportive plate comprising (i) at least one pin receiving feature for receiving a pin or a screw; and (ii) at least one fin projecting from a first side of said articular supportive plate, said fin being provided with one or more pin receiving features for receiving a pin or screw. Further provided herein are systems for articular fracture fixation, and methods of fixating an articular fracture in a long bone using such systems.

An internal fixer of hook plate for treating distal tibiofibula separation caused by condylar fracture is composed of a fibula fixing plate with several fibula fixing holes and arc part matched with the fibula, and the tibiofibula pull-hook unit consisting of main body, pull hooks for fibula and tibia fixing holes.

The present invention provides a type of tibial near -end lock board, including main components and connecting components. The main components are used to fix the outer side of the proximal tibia;Forces, the head of the head wraps on the tibia near -end platform is fixed and fixed. The pole parts fit the outer sides of the tibial and orthopedic and fix it.Piece parts of the side column.The present invention realizes the fixation of the outer tibial side through the main component, and the design of the component of the parts to enhance the fixation of the rear column of the back column of the near -end platform of the tibia, so that the outer outer lock plate of the tibia can be used for the proximal fracture of the tibia, dry and dry.In the surgery of end fractures, joint fractures, and peripheral fractures of prosthesis; in addition, the head of the main component is wrapped in the outer side column of the near -end platform of the tibia, which is fixed and reliable than the existing curved surface bone plate.

The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.

The invention discloses a minitype surrounding joint injury restoring system and a locking bone fracture plate thereof. The minitype surrounding joint injury restoring system is mainly composed of the locking bone fracture plate, a locking bone jointing fixing piece, a suturing thread and/or an artificial ligament. The locking bone jointing fixing piece is used for fixing the locking bone fracture plate to a bone, and a structure for locating and fixing the suturing thread and/or the artificial ligament is arranged on the locking bone fracture plate and/or the locking bone jointing fixing piece. According to the minitype surrounding joint injury restoring system, torn soft tissue can be effectively sutured and repaired through the suturing thread and/or the artificial ligament, meanwhile, avulsion fractures following soft tissue tearing can be effectively restored through the locking bone fracture plate, and soft tissue injuries around the surrounding joint or following surrounding joint fractures of different degrees can be restored at the same time through one product.

The invention discloses a fracture of tibial plateau internal fixing device which consists of a component (A) and a component (B). The component (A) consists of two sections of main screw threads. The fracture of tibial plateau internal fixing device is characterized in that the front end screw thread (1) is a taper screw thread. The thread pitch of the screw thread (1) is larger than that of a screw thread (2). The thread depth of the screw thread (1) is deeper than that of the screw thread (2). The rear end screw thread (2) is connected with the front end internal thread of the component (B) in a cooperation mode. The component (B) is an internal hollow cylindrical body. A tail end (7) is arranged on the tail of the component (B). A tightening structure (6) which matches with an outer sleeve of compound sleeves is arranged at the tail end (7). The tightening structure (6) communicates with the internal hollow portion of the component (B). According to bone mineral density of patient, pressure required by intra- articular fracture bone and torque required by tightening device is quantified so as to be beneficial to early recovery of patient.

The invention discloses a biological truss structure type traditional Chinese medicine small splint component and a traditional Chinese medicine small splint device. The traditional Chinese medicine small splint component comprises a main plate and inner lining plates stacked on the main plate, the inner lining plates have truss girders protruding towards the main plate, and the main plate is provided with a first accommodating cavity for accommodating the truss girders. The biological truss structure type traditional Chinese medicine small splint component forms excellent load bearing structures in different directions through reasonable cross sections and outlines, multiaxial lever force and transverse fixing force in the axial direction are generated, a traditional Chinese medicine small splint system can stably carry out external fixation treatment on articular fracture, and the elastic fixation function of the traditional Chinese medicine small splint and the characteristics that bone is fixed axially, transverse fixation is achieved, dynamic and static combination and combination of muscles and bones are achieved, of traditional Chinese medicine external fixation treatment of fracture can be brought into full play.

The invention discloses a hip joint fracture steel plate, and belongs to the field of medical instruments; according to the technical scheme, the hip joint facture steel plate comprises a steel platemain body fixed to a hip joint. The invention is featured in that a plurality of threading holes penetrating through the steel plate main body are formed in the steel plate main body; a cable used forbeing bound to the femur is arranged in the threading hole in a penetrating mode. The steel plate main body is detachably connected with a locking piece capable of simultaneously extending into one group of two threading holes; at least two rivets used for fixing are fixedly arranged on the steel plate main body, at least two barb-shaped protrusions with openings facing the steel plate main bodyare arranged on the rivets, fixing coatings with uneven structures are arranged on the side walls of the rivets, and the steel plate main body is made of pure titanium or titanium alloy. The inventionachieves the effect of reducing the potential health hazard of a patient.

The invention relates to an intelligent desktop-level three-dimensional diagnosis system for complex intra-articular fractures. The system comprises an image acquisition module, an image processing module, a three-dimensional reconstruction module and a display module which are connected in sequence. On one hand, under the assistance of an artificial intelligence algorithm, interested fracture data are automatically, rapidly and accurately extracted, and an interactive three-dimensional reconstruction image is generated; and on the other hand, a common low-configuration computer is allowed tocarry out reconstruction operation, so that a clinician can conveniently identify the three-dimensional form of the fracture before and during an operation and formulate a more detailed and accurate operation scheme, thereby shortening the operation time, reducing bleeding during the operation and improving the operation curative effect.

The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to an intra-articular fracture minimally-invasive surgery sighting device with a reset function. The intra-articular fracture minimally-invasive surgery sighting device comprises sleeves; a through hole capable of penetrating a kirschner pin is formed inside each sleeve; the intra-articularfracture minimally-invasive surgery sighting device further comprises a parallel sighting block; the parallel sighting block is provided with at least two first sighting holes penetrating the upper and lower surfaces of the parallel sighting block; an axis lead of each first sighting hole is in parallel to each other; the sleeves penetrate the first sighting holes and the outer surfaces of the sleeves are connected with the parallel sighting block; axis leads of the through holes are coincided with the axis leads of the first sighting hole; and the sleeves and the first sighting holes are arranged correspondingly. The sleeves of the intra-articular fracture minimally-invasive surgery sighting device can utilize the parallel sighting block to carry out sighting positioning so as to ensure that the kirschner pins knocked in through the sleeves are in parallel to each other, and thus, a large resultant force can be formed and a fracture point is more firmly and reliably fixed.

The invention provides an intra-articular fracture percutaneous elastic expanding and restoration fixing device which is characterized by comprising a sleeve (1), wherein one end of the sleeve (1) isopened; the other end of the sleeve (1) is sealed; the sleeve (1) is internally provided with a pressure piston (4); a power piston (5) and a power ball (6) in corresponding matching are arranged on one side of the pressure piston (4); a plugging device (7) in corresponding matching with the opening end of the sleeve (1) is arranged on one side of the power ball (6); a second sleeve (4a) is arranged at the other end of the pressure piston (4); one end of the second sleeve (4a) extends outside the sleeve (1); and the second sleeve (4a) is connected with a first screw (8) in corresponding match.The device is simple in structure, convenient to use and simple to operate, and complications such as ankylosis can be avoided while fracture restoration is maintained.

A periprosthetic fracture repair solution that provides a variety of fracture fixation options should a fracture occur after total hip, knee, or especially a total shoulder arthroplasty, and provides associated methods and apparatus for application of provided fixation. The ability to pre-engineer fracture fixation contingent solutions into humeral components provides for a distinct clinical advantage in the planning and execution for periprosthetic fracture fixation. Said methods and apparatus include targeting devices which allow for intimate association of fixed angle locking screws in pre-drilled holes in an existing prosthetic or other components including additional fixation components. Such apparatus and methods further include the use of alignment devices and other components to allow for ease of repair of periprosthetic fractures utilizing the pre-engineered solutions. Such targeting devices are required in specific circumstances as the prosthetics may prevent x-ray imaging and consequently free hand alignment.

The invention discloses a traditional Chinese medicine small splint external fixing device, which comprises five back splints, five radialis splints, five palmar splints and a ulnar splint which are respectively used when a wrist joint is in a neutral position, a wrist back stretching position, a wrist bending position, a functional position and a wrist supporting position. The traditional Chinese medicine small splint external fixation device can adapt to changes of wrist joint fracture parting and staging, the device is of a modular structure, is easy and fast to use, can improve the comfort of fracture external fixation treatment, and reduces sequelae such as joint stiffness in the later period.

The invention relates to the field of medical apparatuses and instruments and discloses a novel fracture fixation device. The novel fracture fixation device is composed of three layers including an outer layer, a balloon cavity and an inner layer, wherein the outer layer is provided with sticking hair, and the inner layer is provided with a sticking fastener matched with the sticking hair; the balloon cavity is composed of two cavities of a first cavity and a second cavity, and each cavity is provided with an inflating nozzle and a connecting piece for shaping the balloon cavity; the inner layer is provided with a splint chamber for placing splints, both sides of the splint chamber are provided with closable through ports, and a fastening rope is arranged in a penetrating mode in the middle of the splint chamber; the balloon cavity is arranged between the outer layer and the inner layer, the sticking hair is arranged away from the balloon cavity, and the sticking fastener is arranged away from the balloon cavity. The novel fracture fixation device can replace existing plaster bandage or orthopedic splints for fracture rehabilitation; meanwhile, the novel fracture fixation device isadjusting in fixing strength, beneficial to rehabilitation of juxta-articular fractures and capable of avoiding anchylosis.