1103 results about "Internal fixation" patented technology

Systems, including apparatus and methods, for internal fixation of a fractured or otherwise compromised bone. These systems may include and/or make use of bone plates, locking screws, and/or kits, among others.

A bone plate system for internal fixation of bone fractures includes a bone plate having a plurality of bone plate holes. The holes are constructed to receive either a non-locking, locking, or variable-angle locking bone screw. The holes have discrete columns of teeth or thread segments arranged around the inner surface of the hole for engaging threads on the heads of locking and variable-angle locking bone screws. Conventional locking bone screws engage the bone plate coaxially with the central axis of the bone plate hole. Variable-angle locking bone screws can engage the bone plate at a selectable angle within a range of selectable angles relative to the central axis of the bone plate hole. The head of the variable-angle locking screw is at least partially spherical, and the thread thereon has a profile that follows the arc-shaped radius of curvature of the spherical portion of the screwhead.

A system for the internal fixation of a fractured bone of an elbow joint of a patient includes at least one bone plate, each bone plate having a plurality of holes and generally configured to fit an anatomical surface of the fractured bone. The at least one plate is adapted to be customized to the shape of a patient's bone. The system also includes a plurality of fasteners including at least one locking fastener for attaching the bone plate to the bone. At least one of the holes is a threaded hole. Guides for plate benders, drills, and/or K-wires can be pre-assembled to the threaded holes, and the locking fastener can lock into any of the threaded holes after the guides are removed.

A bone fracture fixation system comprises a bone plate configured to bear against a proximal surface of the bone and a plurality of elongated tension elements, each sized to pass through an opening in the bone plate and through the bone from the proximal surface to a distal surface thereof. Each tension element is anchored to the bone and maintained in tension by a distal anchor attached to said tension element and configured to engage the distal surface of the bone and a proximal anchor engageable between the bone plate and the tension element.

A system for the internal fixation of a fractured bone of an elbow joint of a patient includes at least one bone plate, each bone plate having a plurality of holes and generally configured to fit an anatomical surface of the fractured bone. The at least one plate is adapted to be customized to the shape of a patient's bone. The system also includes a plurality of fasteners including at least one locking fastener for attaching the bone plate to the bone. At least one of the holes is a threaded hole. Guides for plate benders, drills, and/or K-wires can be pre-assembled to the threaded holes, and the locking fastener can lock into any of the threaded holes after the guides are removed.

The invention discloses an orthopaedic universal appliance box which comprises a box body and an upper cover, wherein the upper end of the bottom surface of the box body is uniformly fixed with a plurality of screw take-out device boxes; the left side of the leftmost screw take-out device box is provided with a vertical quick-change straight-handle groove; the left side of the lower end of the bottom surface of the box body is provided with a transverse A-shaped broken-screw take-out embedding groove, and the right side is provided with a transverse T-shaped quick-change handle groove; and the lower side of the A-shaped broken-screw take-out embedding groove and the T-shaped quick-change handle groove is provided with a transverse osteotome groove. The invention solves the problem that the standby tools of orthopaedic surgical appliances are not unified and not convenient to carry, which is common in the clinical work. The overall structure of the orthopaedic universal appliance box is compact. By reasonably putting a set of orthopaedic steel plates and surgical universal appliances of a nail-stick internal fixation system and a bracket external fixation system in the box body, the orthopaedic universal appliance box meets the use requirements during surgery.

An intramedullary nail in which a plurality of fins (26) which protrude radially are formed on the outer circumference of the nail, providing firm internal fixation which makes the nail easy to operate.

This invention relates generally to devices, systems and methods for the internal fixation of bone fractures, and particularly, to intramedullary fracture fixation devices such as those used in, for example, the treatment of long bone fractures. An IM rod preferably is provided with multiple curved sections in different planes preferably designed to conform with the long bones of a patient, both during insertion and in the rod's final position in the long bone. In addition, the overlap of portions of the curved sections results in a co-planar curvature of portions of the IM rod which assist in the insertion process by guiding the proper rotation of the IM rod as it is inserted into the bone. Spiraling flutes extending down the distal portion of the rod also assist in properly guiding and orienting the rod about its longitudinal axis during insertion such that the appropriate segment of the curved rod conforms with the appropriate portion of the long bone at the appropriate place.

A method for internal fixation of vertebra of the spine to facilitate graft fusion includes steps for excising the nucleus of an affected disc, preparing a bone graft, instrumenting the vertebrae for fixation, and introducing the bone graft into the resected nuclear space. Disc resection is conducted through two portals through the annulus, with one portal supporting resection instruments and the other supporting a viewing device. The fixation hardware is inserted through small incisions aligned with each pedicle to be instrumented. The hardware includes bone screws, fixation plates, engagement nuts, and linking members. In an important aspect of the method, the fixation plates, engagement nuts and linking members are supported suprafascially but subcutaneously so that the fascia and muscle tissue are not damaged. The bone screw is configured to support the fixation hardware above the fascia. In a further aspect of the invention, a three component dilator system is provided for use during the bone screw implantation steps of the method.

The present invention includes a bone fixation plate assembly comprising a bone plate and a plate compression device for internal fixation of bone and tissue. The bone plate includes a top surface and a bottom bone-facing surface, one or more fastener holes extending between the top surface and the bottom bone-facing surface for fasteners, and one or more suture cleats extending from at least a portion of a boundary of the bone plate and configured to have one or more sutures passed therethrough. In one embodiment, the bone plate has a suture cleat configured to be elevated above the bottom bone-facing surface of the bone plate by a distance of between about 1-5 mm for providing suturing clearance for a suturing instrument, for example.

An orthopedic device, such as an intramedullary nail for internal fixation of a bone and a method of manufacturing the same. The orthopedic device may be formed from a medical grade powder via an additive manufacturing process. The forming process may include heat treating the additive manufactured component and machining the heat treated additive manufactured component to form the orthopedic device. Further, the orthopedic device may be formed to include an internal sensor probe channel that extends within at least a portion of the wall of the device, but which does not protrude through an outer portion of the wall. Embodiments further include a dynamizing intramedullary nail that accommodate adjustments in the relative axial positions of one or more sections of the orthopedic device. The devise may include features in an inner region of the orthopedic device that may alter an elastic modulus of the orthopedic device.

A device, method and system adapted to determine a targeting position on a surgically implantable nail adapted to be used in internal fixation of a bone, the nail comprising a distal end and a proximal end, the device including an extension rod comprising a longitudinal axis and adapted to be detachably coupled to the proximal end of the nail, a bridge member adjustably secured to the extension rod and extending radially from the longitudinal axis of the extension rod, a position of the bridge member on the extension rod being rotationally and longitudinally adjustable with respect to the longitudinal axis of the extension rod, and a targeting arm adjustably coupled to the bridge member and extending from the bridge member toward the distal end of the locking nail, the targeting arm comprising a drill guide.

Disclosed are an apparatus for an interspinous fixation and/or distraction of vertebrae and a methodology for minimally invasive implantation of the apparatus in the spine of a patient. The apparatus corresponds to a pair of teardrop shaped lateral wing elements spaced apart by a central core element that may be selectively sized during the implantation process. The wings and central core are held together by a single threaded bolt and locking nut configuration resulting in a simple structure that may be easily implanted with minimal patient discomfort.

The present invention includes a surgically implantable compression staple, system, and method of use thereof for the internal fixation of bone fractures, fusions, and osteotomies. The staple has a grooved construction along the outside edge of each of its legs and cannulated tabs are aligned above the grooves. The grooves and cannulated tabs of the staple are sized to fit and align with guide wires. Once holes are drilled over the guide wires with a specialized cannulated drill, the appropriately sized staple can be inserted over the guide wires and the guide wires are subsequently removed. The compression feature of the staple is activated and the staple provides stability across the desired fractured site. The system and method allows for easy alignment and precise placement of surgically implantable staples.

The invention discloses a method for designing and forming an anatomical bone plate of an individualized bone model, which includes the following steps: 1) Data collection: use a CT machine to scan both sides of the affected side and the healthy side of the patient, and collect image files in Dicom format file, imported into medical 3D reconstruction software for 3D reconstruction; 2) using medical 3D reconstruction software, the image is segmented according to CT scan data, and bone 3D model reconstruction is carried out, which is materialized and converted into a solid model format file in reverse engineering software; 3) Use computer-aided design CAD software to reconstruct the model according to the three-dimensional bone. The design and forming method of the anatomical bone plate of the individualized skeletal model of the present invention can quickly customize an individualized anatomical internal fixation plate with a high bone matching degree according to different patients, different parts, and different fracture characteristics, so that the internal fixation plate of the patient The fixing plates are fully individualized and provide optimum fixing performance.

The invention provides a pediculus arcus vertebrae internal fixation operation navigation system based on structured light scanning. The system comprises a structured light scanner, a dynamic base, operation instruments and a computer provided with an operation navigation software and a sick bone CT (Computed Tomography) three-dimensional model, wherein during the operation, the dynamic base is fixedly arranged at a sick bone; the structured light scanner is utilized to scan the sick bone so as to obtain a structured light three-dimensional image and is subjected to surface rectification together with the sick bone CT three-dimensional model; a camera on the structured light scanner is utilized to track the operation instrument, so as to obtain the position relations of the operation instruments relative to the dynamic base and the sick bone three-dimensional model; and the position relations are displayed on the computer provided with the operation navigation software in real time, so as to realize operation navigation. Compared with similar systems, the operation navigation system provided by the invention does not require an infrared navigation position finder to participate in tracking during the operation, can be used for improving the navigational fixing precision, simplifying the operation navigation process, lowering the complexity and cost of the whole system and occupying less space of an operation room, and can be conveniently used by doctors.

The invention discloses a bio-absorbable medical compound material and a preparation method thereof. In the invention, an absorbable high polymer material is taken as a substrate, and an oriented and dispersed array is formed in the substrate through magnesium alloy wires or fibers which are subjected to micro-arc oxidation, or a two-dimensional latticed structure or a three-dimensional latticed structure is formed by weaving the magnesium alloy wires or fibers in the substrate for enhancing the mechanical performance of the absorbable compound material; degradable polymer substrates such as polylactic acid and the like are mixed with the wild phases of the magnesium alloy wires or fibers, are molded or extruded into bars or plates under certain pressures, and are treated with subsequent machining, so that various degradable biological medical compound materials can be obtained. The method has the characteristics of mild processing condition and easiness for operating; the product has high mechanical performance, high biocompatibility and wide application prospect, and is suitable for orthopedic internal fixation products of various shapes; the production degradation is safe, stable and controllable; and the pain to a patient caused by secondary operation or advanced invalidation of the conventional orthopedic product is avoided.