107 results about "Radius bone" patented technology

The juxta-articular stabilisation system constitutes of a plate with integral pin and tail part, a plate specific jig, a plate and jig specific drill sleeve, a plate positioner, a slotted head screw, a pin bender, screws and pins.

This system can be used for fixation of most types of fractures involving the juxta-articular radius. The plate has a most juxta-articular row of screw holes in individually bendable and detachable extensions especially designed for very distal fractures or the volar lip fractures. The plate and jig assembly have plate positioning apertures in its juxta-articular part to allow adjustment in position of plate in longitudinal, transverse and oblique directions after temporary fixation to the juxta-articular fragment with a pin prior to fixation to diaphyseal fragment. This allows a very precise placement of the plate in the most desirable position. The drill guiding jig can be assembled to the plate prior to surgery thus reducing surgical step and time. The specific orientation of the screws holes in the diaphyseal part of the plate orientates the screws such that when tendons apply forces across the fracture, the plate is wedged between screw and the bone rather than pushed away from the bone. Therefore, more aggressive physical therapy can be commenced earlier and plates with fewer screws in the proximal part can be used without compromising the strength of the fixation. The plate also has bendable and dividable pin part and tail parts on either ends that allows the plate to be used with a chuck or power tool as a pin or drill bit and also have longer purchase into the bone with minimal soft tissue exposure.

System, including methods and apparatus, for replacing an end of a bone, such as a radial bone, with a prosthesis. In exemplary embodiments, the prosthesis is a radial head prosthesis having a stem portion and a head portion. The head portion may be configured to be (a) placed onto the stem portion by movement of the head and stem portions relative to one another transverse to a longitudinal axis of the stem portion, and then (b) rotated with respect to the stem portion to produce friction that firmly attaches the head portion to the stem portion.

The invention relates to a distal radius palmaris locking plate. The plate comprises a main locking plate body which is matched with the radius, the main locking plate body comprises a distal radius fixing part and a branch part which are connected with each other, a protruding strip is arranged on the portion, close to the radius, at the edge of the left end of the distal radius fixing part, andthe edge of the upper portion of the distal radius fixing part is subjected to ultra-thin design; the main locking plate body is made of a PEEK composite material, and the distal radius palmaris locking plate is stable in structure, capable of not being loosened during use and good in compatibility with the skeleton of the human body.

The invention provides a cun, guan and chi identification method, terminal and system, a medium and computer equipment. The method comprises the steps of obtaining a thermal imaging image of a human wrist, and determining a first mark point corresponding to the radial styloid process of the wrist based on the thermal imaging image; extracting edge contour information between the radial styloid process and the palm and on the two sides of the wrist; determining a wrist cross grain trend straight line based on the edge contour information; acquiring a vertical distance between the first mark point and the wrist cross grain, and determining an inch position abscissa and a ruler position abscissa based on the vertical distance and the first mark point; extracting a radial artery image, and fitting the radial artery image into a linear function; on the basis of the linear function, the horizontal coordinate of the guan position, the horizontal coordinate of the chi position and the horizontal coordinate of the cun position, determining the longitudinal coordinate of the guan position, the horizontal coordinate of the chi position and the longitudinal coordinate of the cun position. therefore, the cun, the guan and the chi are positioned only by using the wrist thermal imaging image and the traditional Chinese medicine one-body cun principle, signal interference is avoided, human subjective interference factors are eliminated, and the positioning precision of the cun, the guan and the chi is ensured.

The invention provides a wrist joint prosthesis. The wrist joint prosthesis comprises a carpal prosthesis and a radius prosthesis, wherein the carpal prosthesis is provided with a first curved surface, the radius prosthesis is provided with a second curved surface matched with the first curved surface in shape, and the carpal prosthesis and the radius prosthesis are connected in an abutting mode in the first direction through the first curved surface and the second curved surface. The carpal prosthesis is configured to be rotatable relative to the radius prosthesis around a second direction and a third direction which are perpendicular to the first direction, and one end used for being connected with carpal, of the carpal prosthesis is rotatable relative to one end used for being connectedwith the radius, of the radius prosthesis around the first direction. According to the configuration, one end used for being connected with carpal, of the wrist joint prosthesis is configured to rotate around the first direction relative to one end used for being connected with the carpal, of the radius prosthesis, so that the wrist joint prosthesis can achieve the circling motion function of a radial wrist joint, the wrist joint mobility of a patient is improved, and the satisfaction degree of the patient is increased.

The invention provides a distal radioulnar joint reduction fixation plate, and belongs to the field of internal fixation instruments for clinical medicine orthopedic operations. The distal radioulnar joint reduction fixation plate comprises an ulna hook and a radius fixing portion, wherein the ulna hook surrounds the periphery of an ulna and is used for hooking the ulna, the radius fixing portion is used for fixing a radius, and the ulna hook and the radius fixing portion are positioned at two ends of the distal radioulnar joint reduction fixation plate respectively. The distal radioulnar joint reduction fixation plate is fixed onto the radius through the radius fixing portion, the ulna is hooked by the ulna hook, reduction effects can be enhanced, the shortcoming of loosening caused by suture is overcome, reduction of the movement range of a distal radioulnar joint and complications of synostosis caused by ulna and radius steel needle fixation are avoided, reduction can be reliable by the aid of the distal radioulnar joint reduction fixation plate, rotation of the distal radioulnar joint is limited, natural healing of a distal radioulnar joint ligament or/and a joint capsule is facilitated, surgical effects are improved, and the complications are decreased.

The invention provides a distal radius personalized artificial prosthesis. The distal radius personalized artificial prosthesis comprises a core column composed of a core column solid part and a corecolumn porous part, wherein the core column solid part comprises a core column solid part far end, a core column solid part collar part and a core column solid part intramedullary nail; the hollow conical core column porous part is arranged at the outer side of the core column solid part intramedullary nail and wrapped by remaining radius; and an outer sleeve with a same geometrical shape as cut-off radius is arranged at the outer side of the core column solid part far end. By adoption of a combined structural design, the outer sleeve and the cut-off radius are the same in geometrical shape; good contact between the outer sleeve and bone joint surface is guaranteed; stress shielding and bone abrasion are relieved; and the probability of postoperative fracture is reduced.

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 an intramedullary fixing device for radial head fractures. The intramedullary fixing device comprises a core rod sleeved with a radius main body bone cavity, a rod body of thecore rod is provided with a core rod fixing hole and is fixed to the corresponding position in the radius main body bone cavity through a core rod fixing lead screw, and the outer end of the core rodis inserted into a radius head bone cavity; and small head radial fixing holes are distributed in the circumferential face of a plug at the outer end of the core rod, and small head radial fixing leadscrews penetrate through sclerotin inwards from the outer side of a radial head and then are connected into the small head radial fixing holes. The device belongs to intramedullary fixation, is simple to operate and firm in fixation, is particularly suitable for fixation of radial head comminuted fractures, can respectively perform convergent fixation on bone pieces from different angles, avoidsunnecessary joint replacement, and reserves and recovers the radial head of a patient as much as possible.

The invention relates to a fixing tool used after distal radius fracture reduction in the medical field, in particular to a distal radius integrated splint (integrating splints, pressing pads and strapping tapes). A cotton pressure pad is additionally arranged at the far end of a back side plate, and the angles of the back side plate, a radial side plate and an ulnar side plate are changed into adjustable angles of application pressure pads. Four horizontal holes are formed in the side surface of each splint, cotton strapping tapes penetrate through the splints respectively to connect the splints into a whole, a thin cotton pressing pad with the position capable of being adjusted at will is bonded to the inner side surface of the radial side plate and the inner side surface of the back side plate, and the splints and the pressurizing cotton pads are bonded into a whole. The problems that parts of a traditional splint are scattered and need to be operated by multiple persons, the pressurizing cotton pads and the strapping tapes need to be temporarily manufactured by doctors, an anaphylactic reaction is caused due to the fact that the pressing pads or the strapping tapes stimulate the skin, pressing of the fractured end of a fracture is uneven, and pressing pad movement and fracture displacement are prone to occurring are solved; and the problems that a traditional splint is inconvenient to adjust and dress repeatedly, and is inconvenient to carry and use at any time can be solved.

A wrist orthosis (1) for support of a patient's wrist, comprising a wire frame (2) for engagement with a forearm (F), wrist (W), and hand (H) of a patient, the wire frame (2) comprising a radial wire section (3) configured to extend in a distal direction along the forearm, wrist and toward a radial side of the hand. The radial wire section (3) is connected to a palmar wire section (4) configured to extend in lateral direction from the radial side of the hand along a palmar region (6) thereof toward an ulnar side of the hand. The palmar wire section (4) is connected to an ulnar wire section (5) configured to extend from the ulnar side of the hand in proximal direction toward an along the wrist and forearm. The radial and ulnar wire sections (3,5) are laterally spaced apart along an intermediate dorsal region (7) of the hand.

The invention discloses a bone defect repair system for a wrist joint. The bone defect repair system comprises a distal radius prosthesis and a radius articular surface prosthesis; the first end of the body of the distal radius prosthesis is provided with a plate-shaped radius setting part extending in the long axis direction of the body of the distal radius prosthesis; the radius setting part is provided with a plurality of radius connecting holes, and the end part of the second end of the body of the distal radius prosthesis is provided with a first limiting groove; the first end of the radius articular surface prosthesis is provided with a protruding first limiting block, and the first limiting block is installed in the first limiting groove; and the second end face of the radius articular surface prosthesis is a radius articular surface. The radius articular surface and a metacarpal bone jointly form a wrist joint part corresponding to the radius, the geometrical shape of the wrist joint part is the same as the geometrical shape of the articular surface of an anatomical wrist joint, and therefore the function and the range of motion of the wrist joint can be recovered.

The invention discloses a Mimics-based computer simulation double-wedge-shaped osteotomy method. The method comprises the following steps: acquiring CT projection data of the affected side and CT projection data of the uninjured side of a patient; respectively inputting the affected side CT projection data and the uninjured side CT projection data into Mimics, and establishing a corresponding affected side three-dimensional model and uninjured side three-dimensional model only containing humerus and ulna and radius; performing X-ray photography on the affected side three-dimensional model and the uninjured side three-dimensional model in an X-ray module, and acquiring a corresponding affected side simulated normal-position X-ray film and an uninjured side simulated normal-position X-ray film; determining an affected side osteotomy orthopedic angle according to the affected side simulation normal position X-ray film and the uninjured side simulation normal position X-ray film; designing an osteotomy path on the affected side simulation orthotopic X-ray film; projecting an osteotomy path on the affected side simulation normal position X-ray film to an entity STL according to a position likelihood principle to obtain an osteotomy indication point; and enabling a computer to simulate osteotomy and surgical reduction. The method can improve the measurement precision of the lifting angle, effectively reduce the lateral displacement, increase the bone surface contact area, improve the bone contact stability, and reduce the bone disconnection rate.

The invention discloses a Yao-nationality medicine for treating fracture of distal radius. According to the Yao-nationality medicine, different prescription combinations are adopted for different phases of fracture, swelling pain of an affected limb can be relieved at the early phase, fracture healing can be promoted at the medium phase, and affected wrist functions can be improved at the late phase, so that occurrence of complications after fracture can be effectively reduced.

The invention discloses a rapid positioning auxiliary drilling device for carpal bone and forearm far-end surgical operation. The rapid positioning auxiliary drilling device comprises a supporting column, an adjusting cylinder, an adjusting knob and a fixing ring, wherein a supporting rod is arranged on one side wall of the supporting column, a supporting plate is arranged at one end away from thesupporting column, of the supporting rod, a gasket is bonded to the upper end of the supporting plate, and a lead screw is welded to the top end of the supporting column. The rapid positioning auxiliary drilling device has the beneficial effects that by arranging the adjusting knob, the lead screw, the adjusting cylinder and a connecting rod, the height of the fixing ring can be conveniently adjusted, traditional tedious bolt adjustment is avoided, the height of the fixing ring can be adjusted more flexibly, and the rapid positioning requirement of an ulna or radius operation is met. By arranging a sliding sleeve, an adjusting rod, a gear, an adjusting groove, a tooth groove, a locking bolt, an opening, a positioning window, a transparent glass plate, a sleeve positioning hole and an adjusting long hole, accurate positioning of the ulna or radius part of the wrist of the patient can be realized when the wrist of the patient is reliably fixed, and the subsequent operation efficiency isconveniently improved.

The invention discloses a distal radius palmar bone fracture plate. The distal radius palmar bone fracture plate comprises a bone fracture plate body, wherein the bone fracture plate body comprises a distal end section close to a wrist joint and a proximal end section, wherein and the top surface of the distal end section close to the wrist joint is of an inclined surface structure; a distal end upper kirschner wire hole, a distal end upper locking hole, a concave hole and a distal end lower locking hole are sequentially formed in the position, close to the wrist joint, of the distal end from top to bottom; the whole concave hole is in a shield shape; a sawtooth structure is arranged on the upper edge of the concave hole; a distal end lower kirschner wire hole is formed under the distal end upper locking hole; the distal end lower locking hole is positioned in the middle, close to the lower end of the wrist joint section, of the distal end; the proximal end section is sequentially provided with a sliding hole, proximal end locking holes and near-end lower kirschner wire holes from top to bottom; and proximal end upper kirschner wire holes are formed between the adjacent proximal end locking holes. The anatomical design of the bone fracture plate conforms to the anatomical characteristics of the distal radius, the bone fracture plate can be used as a reduction template for comminuted fracture, and excessive soft tissue stripping and blood supply stimulation damage are avoided.

The medical toilet may include a seat, lid, and bowl as does a traditional toilet. It also includes one or more acoustic transducers. The acoustic transducers may be located on the seat where they may measure bone density in a user's pelvis or femur. The acoustic transducers may be located on the lid or on a belt which wraps around the user. These acoustic transducers may collect data relating to a user's heart, lungs, liver, bowel, or other internal organs. The medical toilet may include a handrail with an acoustic transducer which measures the bone density in the user's wrist, radius, or ulna. A controller associated with the medical toilet may store algorithms for analyzing the data collected by the acoustic transducers. The controller may perform machine learning to improve the analyses and may calculate trends in repeated measurements taken from the same user or a population of users.

The invention relates to an external fixation locking fixing device for treatment of fracture of distal radius, belonging to the technical field of medical instruments. The locking external fixation device comprises a frame body and screws, the frame body comprises a T-shaped fixing part and a strip-shaped fixing part, the T-shaped fixing part and the strip-shaped fixing part are uniformly provided with threaded holes, the threaded holes are matched with threads of the tail parts of the screws so as to enable the T-shaped fixing part to be fixed on a back side bone block of the distal radius, and the strip-shaped fixing part is fixed on the radius side of the distal radius so as to enable the fracture of the distal radius to realize diaplasis locking. By using the locking external fixation device, the trauma is small, the hemorrhage is less, the incision is reduced manifold, and the cicatrix is small and attractive; and the operative complications are obviously reduced. Taking out by second operation is not required, so that hospitalization costs are saved for a patient. Moreover, the locking external fixation device is light in weight, the patient suffering from less pain, and the locking external fixation device is conducive to rehabilitation of the patient. According to the locking external fixation device, the screw path injury is small, the screw path complications are fewer, and the operative safety is improved; and as the fixation does not cross a joint, the operative interference with the wrist joint is reduced.

The invention provides a distal radius fracture reducer and relates to the field of medical equipment. The distal radius fracture reducer comprises a first workbench and a second workbench, wherein aside wall of the first workbench is fixedly connected with the second workbench; a plurality of fixed limiting rods are fixedly arranged on the upper end surface of the first workbench; a plurality ofmovable grooves are formed in an inner end of the first workbench; one movable limiting rod is arranged at the inner end of each movable groove; the upper end of each movable limiting rod penetratesthrough the corresponding movable groove to an outer end; a threaded hole is formed in the bottom end of each movable limiting rod; and the inner end of each threaded hole is in threaded connection with a screw. The reducer provided by the invention can stably fix an arm and wrist of a patient, and meanwhile, a single doctor can easily and accurately complete reduction of a radius fracture of thepatient through operating a first rotating handle and a second rotating handle, so that manpower is saved, meanwhile, the labor intensity is reduced and the reduction success rate is increased.

The invention relates to a wrist joint loosening operation training instrument which comprises a rack. An operation simulation wrist joint and a display simulation wrist joint which are arranged up and down are arranged on the rack, and the operation simulation wrist joint comprises a first simulation radius part and a first simulation metacarpal bone part which are arranged front and back; the display simulation wrist joint is composed of a second simulation radius part and a second simulation metacarpal bone part matched with the second simulation radius part, the first simulation radius part and the second simulation radius part are fixed to the rack, and the second simulation metacarpal bone part is connected with the first simulation metacarpal bone part through a synchronous connecting rod transmission mechanism; and when the first simulation metacarpal bone part moves back and forth, moves left and right, swings up and down and swings left and right relative to the first simulation radius part, the second simulation metacarpal bone part synchronously acts along with the first simulation metacarpal bone part. The invention aims to provide the wrist joint loosening operation training instrument which can be operated more close to a real human body and cannot affect a teacher to visually observe the skeleton movement range.

The invention discloses a non-transarticular external fixator for treating a distal radius fracture. The non-transarticular external fixator comprises two main radius nails, a portal frame, a first connecting rod, a second connecting rod, a third connecting rod and a plurality of penetrating fixation needles. The upper ends of the main radius nails are connected to the first connecting rod throughnail rod clamps, the transverse part of the portal frame is connected to the front end of the first connecting rod through a rod-rod clamp, and both ends of the second connecting rod are respectivelyconnected to one longitudinal part of the portal frame and the first connecting rod respectively through rod-rod clamp, both ends of the third connecting rod are respectively connected to the other longitudinal part of the portal frame and the first connecting rod through rod-rod clamps, and both ends of each penetrating fixation needle are connected to two longitudinal parts of the portal framerespectively trough needle rod clamps. The non-transarticular external fixator has the advantages that when the external fixator is used for a non-transarticular surgery, wrist joints and fingers of apatient can move unrestrictedly and move immediately and bear part of functions, so that the comfort level of the patient is improved, the life burden on the patient is reduced, and the recovery process is accelerated.

Disclosed is a bone fracture plate for proximal radius comprises a bone fracture plate body, the whole bone fracture plate body is of a T-shaped structure, the bone fracture plate body is divided into a proximal end of the bone fracture plate body and a distal end of the bone fracture plate body, the proximal end of the bone fracture plate body extends and expands towards the two sides and is bent inwards, and the section of the bone fracture plate body distal end is of a cambered surface structure. A row of near-end locking holes are formed in the bone fracture plate near end, the number of the near-end locking holes is three, near-end kirschner wire holes are formed in the left sides of the near-end locking holes, the number of the near-end kirschner wire holes is two, the near-end kirschner wire holes are located between the adjacent near-end locking holes respectively, and a sliding hole, a far-end locking hole and a far-end kirschner wire hole are formed in the bone fracture plate far end from left to right in sequence. The number of the far-end locking holes is multiple, and a far-end upper kirschner wire hole is formed between every two adjacent far-end locking holes. The bone fracture plate is designed according to the anatomical form of the near-end bone surface of the radius, is an anatomical locking bone fracture plate and can be tightly attached to the bone surface without intraoperative shaping, the strength of the bone fracture plate cannot be reduced, and the operation time cannot be prolonged.