105 results about "Radius bone" patented technology

The invention relates to the technical field of medical image processing, artificial intelligence and the like, and provides a bone age assessment method and system based on an AI model and a bone age instrument. A detected left wrist X-ray image is preprocessed through gray scale standardization, noise filtering and a self-supervised learning model, the ratio of the width of the distal radius epiphysis to the width of the metaphysis, the length of the metaphysis of the third palm bone and graded skeleton features of the maturity of auxiliary ossification points are extracted through a Vision Transform, and multi-modal data fusion is conducted on the extracted skeleton features and demographic information. And a multi-layer perceptron model is adopted to predict the fused multi-dimensional bone age related data, and a bone age evaluation report is output, so that errors in bone age prediction of children and teenagers are effectively reduced, and the detection efficiency is improved.

The invention provides a rope-driven elbow-forearm rehabilitation device based on a tension spring reset system, the rope-driven elbow-forearm rehabilitation device comprises a flexible driving part, a forearm rotating part and an elbow joint flexion and extension part, and the flexible driving part is composed of a reset tension spring, a driving rope and the like; the forearm rotating part is composed of wrist inner and outer rings, a rotating track assembly and the like. The elbow joint flexion and extension part is composed of an angle adjusting chuck, a passive moving pair assembly and the like. The forearm rotating part is worn on the forearm and the wrist of a subject, and the flexible driving part drives the wrist outer ring to rotate so as to drive the forearm of the subject to rotate forwards and backwards; the elbow joint flexion and extension part is worn on the upper arm of a subject, and the flexible driving part drives the angle adjusting chuck to rotate so as to drive the elbow joint of the subject to complete flexion and extension movement; the forearm rotating part and the elbow joint flexion and extension part are connected through a forearm-elbow connecting piece; the two-degree-of-freedom elbow and forearm rehabilitation training device can realize two-degree-of-freedom rotation movement of the elbow and the forearm, is suitable for postoperative rehabilitation training of a congenital ulna and radius fusion patient, and has the advantages of portability, good flexibility and the like.

The application relates to a wrist joint prosthesis and relates to the technical field of artificial joint prostheses. The wrist joint prosthesis comprises: a carpal bone assembly for being fixed with one side of a hand-shaped bone, which comprises a carpal bone pad, a carpal bone support block embedded in one side of the carpal bone pad, a carpal bone printing column and a screw connected to the other side of the carpal bone support block, and a support block adjusting device arranged on the embedded side of the carpal bone support block, one end of the support block adjusting device being located in the carpal bone pad, and the carpal bone pad being provided with a locking piece for locking the adjusted position of the support block adjusting device; and a radius bone assembly for being fixed with a radius bone marrow cavity, which comprises a radius bone support, the radius bone support being arranged on the side of the carpal bone pad away from the carpal bone support block. The wrist joint prosthesis has the advantages of shortening the waiting time for surgery.

The present disclosure relates to a prosthesis (400) configured for implantation in a carpometacarpal joint in the wrist, the prosthesis comprising a first and a second implant part member (405a,b) configured to be screwed into a radius and metacarpal bone respectively. Each implant part member (405a,b) comprising an articulation member (420a,b) configured to be received in the bone fixation member (410a,b) in a releasable manner. The articulation members (420a,b) comprise orientation pins (423) configured to be inserted into bore sections of the bone fixation members 410a,b. When seated in the bore sections, the first portions of the articulation members (420a,b) with the orientation pins (423) are substantially centered along the central axes of the bone fixation members (410a,b), thereby forming common central axes extending through the bone fixation members (410a,b) and the articulation members (420a,b). The radius articulation member (420a) comprises a replacement articular surface configured for articulation with a replacement articular surface located on the metacarpal articulation member (420b). The radius replacement articular surface has (420a) a configuration that is asymmetric about the common central axis of the radius bone fixation (410a) and articulation members (420a). The bore sections have cross-section (419) extending perpendicularly to the central axis defining a first polygonal outline (429). The orientation pins (423) have cross-sections defining a second polygonal contour line, such that when the orientation pins (423) of the articulation members (420a,b) are seated in the bores of the bone fixation members (410a,b), rotation of the articulation members (420a,b) in relation to the bone fixation members (410a,b) is prevented.

The present invention provides a wrist joint prosthesis, comprising: a carpal prosthesis and a radial prosthesis; the carpal prosthesis having a first curved surface, the radial prosthesis having a second curved surface adapted to the shape of the first curved surface, the carpal prosthesis and the radial prosthesis being abutted against each other along a first direction via the first curved surface and the second curved surface; the carpal prosthesis being configured to be rotatable relative to the radial prosthesis about a second direction and a third direction perpendicular to the first direction, and one end of the carpal prosthesis for connection to the carpal bone being rotatable relative to one end of the radial prosthesis for connection to the radius about the first direction. With such a configuration, by configuring one end for connection to the carpal bone to be rotatable relative to one end of the radial prosthesis for connection to the radius about the first direction, the wrist joint prosthesis can realize the circumflex motion function of the radiocarpal joint, thereby improving the patient's wrist joint mobility and increasing patient satisfaction.

An external fixation K-wire clamp including an elongated channel arranged and configured to receive a K-wire. In some examples, the elongated channel is devoid of any predefined grooves so that a K-wire can be positioned anywhere along the length of the elongated channel and / or in various orientations. In addition, and / or alternatively, an exemplary method of use for treating a distal radius fracture is disclosed. The method enabling earlier hand / wrist therapeutics.

The present invention relates to an external fixation treatment device for distal radius fractures, belonging to the technical field of medical devices. It includes a fixing frame, which consists of two fixing seats. The two fixing seats are connected by a ball head. A connecting seat is slidably connected to the fixing seat. The connecting seat is connected with a Kirschner wire. A clamping groove is formed on the upper end face of the fixing seat. A protective cover is clamped on the connecting seat. The protective cover passes through the clamping groove and is clamped on the fixing seat. The protective cover covers the Kirschner wire protruding from the connecting seat, thus preventing the Kirschner wire from protruding from the connecting seat and catching other things, resulting in the movement of the Kirschner wire and affecting the recovery of the patient.

Disclosed is a device for total wrist fusion that includes (a) a first section, which is preferably a plate, that is positioned under the skin on top of the forearm, wrist and potentially part of the hand and connected to one or more of the radius or carpal bones, (b) a second section, which is preferably in the shape of an awl and is received in the cannula of the third metacarpal bone. Optionally, an anti-rotational third section may be included, which can connect to the top of the third metacarpal bone.

The invention concerns a distal radius fracture fixation device for securing at least two fractured bone segments together. The device comprises: a body portion comprising at least two insertion channels each extending through the body portion and each being configured for receiving a bone fixation element therethrough; and an insertion device connection portion connected to the body portion, and for coupling a separate insertion device to the fracture fixation device. The insertion device connection portion is arranged to be decoupled from the body portion.

To provide an arm correction wearing tool and arm correction wear which can support the supination movement of the arm and easily correct the twisting of the arm. [Solution] The arm corrective wearing device 10 comprises an arm covering part 11 that covers at least from the shoulder to the elbow on one side, and an arm belt 12 that is disposed on the arm covering part 11 and extends from the shoulder to the front, passing through the muscle belly of the biceps brachii muscle and around the inside of the arm, passing through the muscle belly of the triceps brachii muscle and around the outside of the arm from the humerus side of the olecranon, and then extending along the proximal part of the radius of the forearm. The arm belt 12 supports the supination movement of the arm and supports part of the forearm while imitating the tendon of the biceps brachii muscle.

The application relates to the technical fields of medical image processing and artificial intelligence, and provides a bone age evaluation method and system based on an AI model and a bone age instrument. The left wrist X-ray image of a subject detected in the bone age instrument is acquired, and the demographic information of the subject is recorded. The detected left wrist X-ray image is pretreated through gray standardization, noise filtering and a self-supervised learning model. The Vision Transformer is used to extract the distal radius epiphysis and metaphysis width ratio, the third metacarpal metaphysis length and the auxiliary ossification point maturity grading skeletal features, and the multi-modal data fusion is carried out with the demographic information. The multi-layer perception model is used to predict the fused multi-dimensional bone age related data, and a bone age evaluation report is output, so that the error in the bone age prediction of children and adolescents is effectively reduced, and the detection efficiency is improved.

Provided is a Raglan sleeve upper garment that allows easy movement of the wrist in the front-back, left-right, and up-down directions, and also allows easy rotation of the shoulder. 【Solution means】In a Raglan sleeve upper garment where the sleeve extends to the collar, the sleeve comprises at least a shoulder-side sleeve member provided on the outer side of the body and an armpit-side sleeve member provided on the inner side of the body, and the shape of the front body side of the shoulder-side sleeve member is pre-twisted so as to pass from the collar through the front side of the shoulder joint and further through the inner epicondyle side of the elbow joint to reach the radial side of the wrist.

The ulna and radius splint comprises a plurality of bonesetting plates, the bonesetting plates are provided with belt holes, the adjacent bonesetting plates are connected in series through the belt holes and soft belts to form a multi-grid-shaped conjoined body, each bonesetting plate comprises an ulna inner plate, an ulna plate, an ulna outer plate, a radialis outer plate, a radius plate and a radialis inner plate which are arranged in sequence, and further comprises a bone separating column which is of a triangular prism structure. The bone separation column is provided with a V-shaped working surface and a second surface, the bone separation column comprises a first bone separation column and a second bone separation column, in a working state, the first bone separation column is arranged between the ulnar outer plate and the radial outer plate, and the second bone separation column is arranged between the ulnar inner plate and the radial inner plate. The invention has the following advantages: 1, the fracture reduction positioning accuracy is high; 2, the positioning stability is high; and 3, fracture healing is facilitated. And 4, the fixing and treatment effects can be improved through the personalized customized bone separation columns.

Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and / or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.

The invention provides a wrist closed-loop peripheral nerve electrical stimulation method and system, and relates to the technical field of nerve regulation and wearable medical instruments.The method comprises the steps that physiological signals and wearing state information of the radial styloid process, the ulna styloid process and the wrist transverse grain midpoint of the wrist are obtained, and the reference range and the dynamic calibration boundary of stimulation parameters are obtained; based on the reference range and the dynamic calibration boundary, determining a structural relationship according to the position data of the radial styloid process, the ulna styloid process and the wrist cross grain midpoint of the wrist, and performing regional characteristic analysis on the structural relationship to obtain an analysis result; and calculating geometric characteristics in the regional characteristic analysis result to obtain a geometric moment quantification result of the region. According to the invention, an individual parameter setting, closed-loop online updating and long-term maintainable engineering system is realized.

The application discloses a multifunctional electronic assisting device and relates to the technical field of electronic assisting devices, which comprises a glove, a ulna connecting sleeve connected to one end of the glove, a radius connecting sleeve connected to one end of the ulna connecting sleeve, an elbow joint protective cover fixedly connected to one end of the radius connecting sleeve, and a humerus connecting sleeve fixedly connected to one end of the elbow joint protective cover. When the driving rod slides in the spiral groove, the transmission bar can be lowered, and the piston rod can be lowered synchronously in the process, so that the air in the piston cylinder is filled into the inside of the inflatable cotton through the inflation pipe, the elbow is assisted in the process of rapid expansion of the inflatable cotton, and the elbow is protected, so that the elbow is prevented from being injured due to the elbow being supported on the ground due to the instinctive reaction when a person falls down during the use of the device. The elbow joint protective cover is thickened in the process of expansion of the inflatable cotton, so as to play a buffering role on the elbow.

A wristband (10) for covering a wrist accessory (4) having an accessory band (6) adapted to extend around the palmar side (21), and the radial and ulnar zones (31,32), of a wrist (2) of a wearer; and an accessory feature (8) adapted to rest on the dorsal side (44) of the wrist (2). The wristband (10) comprises a rear section (20) including a volar portion (22) that is adapted to laterally and circumferentially cover the accessory band (6) outwardly of the accessory band (6) on the wearer's wrist (2). The wristband (10) also includes side radial and ulnar portions (32,34) and a front section (40). The front section (40) includes a laterally displaceable dorsal portion (42) adapted to move from a cover position (Fig. 4) in which it covers the accessory feature (8), and a displaced position (Fig. 3) in which the accessory feature (8) is uncovered.

The application discloses a postoperative adjustable nursing support device for children, and relates to the technical field of medical devices.The size arm supporting and clamping mechanism comprises a small arm supporting plate and a circular arc supporting plate, two supporting plates one are arranged on the front and back sides of the left end of the small arm supporting plate, one side of the two supporting plates one away from each other is fixedly connected with one end of two longitudinal adjusting shafts, two supporting plates two are arranged on the front and back sides of the bottom of the circular arc supporting plate, the two supporting plates two are rotationally connected with corresponding adjusting shafts, the top of the circular arc supporting plate is fixedly connected with the bottom of a large arm binding plate, and the outer side of the large arm binding plate is provided with a large arm binding assembly; the postoperative adjustable nursing support device for children further comprises a size arm angle adjusting mechanism, a ulna and radius state limiting mechanism and a ulna and radius clamping mechanism, the relative position of the ulna and the radius in the small arm can be limited in the early postoperative period, and the elbow protection mechanism can prevent the elbow joint bending point from being bumped.

The utility model relates to a wrist fracture fixing device which comprises a front arc-shaped fixing frame and a rear arc-shaped fixing frame, a plurality of arc-shaped connecting holes are formed in the front arc-shaped fixing frame and the rear arc-shaped fixing frame in the arc-shaped direction, and two pulling and connecting rods are connected in the corresponding arc-shaped connecting holes in the front-back direction of the front arc-shaped fixing frame and the rear arc-shaped fixing frame in a penetrating mode to be in the state of pulling and fixing the front arc-shaped fixing frame and the rear arc-shaped fixing frame. The front shaft section of the front connecting seat forwards penetrates through an arc-shaped connecting hole of a front arc-shaped fixing frame and is spirally connected with a front locking nut in a screwed mode to be fixedly connected, a rear connector of the front connecting seat is hinged through a connector at the front end of a pull rod and a pin shaft perpendicular to the front-back direction, and the rear end of the pull rod penetrates through a rear arc-shaped fixing frame to be fixedly connected; a first kirschner wire for fixing the radius in a crimped and penetrating manner is arranged on the rear arc-shaped fixing frame through a rear nut assembly; the front arc-shaped fixing frame is connected with a supporting rod upwards supporting the carpal bone or the metacarpal bone in a penetrating mode through a supporting nut assembly. The device has the advantages that the metacarpal bone can be well supported, micro momentum is increased through fixing of the front and rear arc-shaped fixing frames, and the high-stability and high-quality healing and rehabilitation requirements are met.

The utility model belongs to the technical field of medical apparatus and instruments and provides a radial artery intervention operation compression hemostat, including support plate, bandage, compression hemostat mechanism, radial bone clamping plate and ulna clamping plate, radial bone clamping plate top end rotation connection is in support plate left end, and ulna clamping plate top end sliding is established in support plate right -hand side, and the bottom surface of support plate right -hand side is provided with the vertical board, and the vertical board is provided with the screw rod in screw connection, and radial bone clamping plate bottom end and ulna clamping plate bottom end all are set up strip -shaped bushing, and the right end of bandage is fixed in ulna clamping plate bottom end, and its left end bottom surface is provided with magic tape hair surface and magic tape hook surface at intervals. The compression hemostat can use radial bone clamping plate and ulna clamping plate to clamp radial bone and ulna from both sides of wrist to position, and bandage does not contact with the back of wrist, so that the bandage does not cause compression to the back of wrist vein, and the compression hemostat is not easy to rotate around the wrist axis, and the installation structure is relatively stable, and the probability of displacement of compression hemostat mechanism and puncture point compression failure can be reduced.

The utility model discloses a distal radius fracture splint in the technical field of medical equipment, which comprises two groups of palmar dorsal side splints and two groups of ulnar radioulnar side splints, aluminum plates are arranged in the palmar dorsal side splints and the ulnar radioulnar side splints, and the aluminum plates are wrapped by high polymer materials; according to the scheme, by means of the structural arrangement of the ulnar radioulnar side splints, the lengthened bent end is arranged in front of the horizontal end, the horizontal end and the bent end are designed to form an angle, the splints can adapt to palmar flexion position (Colles fracture) or dorsal extension position fixation (Smith fracture) during clinical application, meanwhile, the traction rod is installed between the two ulnar radioulnar side splints, and when a patient makes a fist, the traction rod can be used for traction of the ulnar radioulnar side splints. The traction rod is held by a hand to enable the whole splint to move towards the near end, the front arm is conical, and the muscle of the front arm is raised when a fist is clenched, so that the splint has the tendency of moving towards the far end, and the two groups of forces interact to generate a traction effect to pull a fracture end, so that the fracture end is prevented from overlapping and moving.

The invention provides an assembled radial head prosthesis, and belongs to the technical field of medical instruments. The invention provides an assembled radial head prosthesis which comprises a radial head, a radial handle and a plurality of sets of filling parts, a joint nest is formed in the upper end of the radial head, and a mounting groove is formed in the lower end of the radial head; a mounting head is arranged at the upper end of the radial handle and is arranged in the mounting groove; the multiple sets of filling parts are sequentially arranged in a stacked mode and all arranged on the outer side of the radial handle in a sleeving mode, the inner side walls of the filling parts are matched with the outer side wall of the radial handle in shape, and the filling part at the lowermost end is located above the osteotomy bone surface of the radius of the patient. According to the assembled radial head prosthesis, the number of the filling pieces is selected according to the actual situation, the filling pieces are arranged between the radial head and the osteotomy bone surface of a patient, the osteotomy bone surface is supported, the position of the radial head is limited, the stability of the prosthesis after implantation is improved, and the risks that the prosthesis is loosened and fractures occur around the prosthesis are reduced.

The utility model relates to a kind of distal radius fracture dorsal bone block fixing system, including palmar side steel plate, several palmar side fixed holes are opened on the palmar side steel plate, still include the dorsal steel plate corresponding with the position of fragmented dorsal bone block, at least one dorsal fixed hole is opened on the dorsal steel plate, the dorsal fixed hole is counterbore, the palmar side steel plate is integrally connected with dorsal steel plate by passing through the internal thread bolt of palmar side fixed hole and dorsal fixed hole and the fixed bolt matched with the internal thread bolt. The utility model can be used for treating distal radius dorsal fracture, to improve the holding force of isolated dorsal small steel plate on bone block by palmar side steel plate, effectively fixed fragmented dorsal bone block;Palmar side dorsal bidirectional locking can be through the degree of tightening to bone block pressurization, and also can avoid the same side arrangement multiple screws to cause bone block comminution.

The utility model discloses a short and wide type distal radius steel plate which comprises a steel plate body, a through hole is formed in the middle of the steel plate body, a plurality of locking holes are formed in the steel plate body from top to bottom, and the locking holes are formed around the through hole; the outer contour of the steel plate body is in a trapezoid shape, and the width of the upper end of the steel plate body is larger than that of the lower end of the steel plate body. Through the application of the utility model, the short and wide distal radius steel plate is provided, the smaller size of the steel plate is more favorable for implementing the operation scheme of transverse incision on the palm side of the wrist, and meanwhile, the accuracy of placing the steel plate is also improved, so that the operation efficiency of medical personnel is further improved; in addition, the incision needed by using the anterior rotating muscle fixing device is small, meanwhile, the integrity of the anterior rotating muscle of the patient is kept, and the postoperative rehabilitation time of the patient is greatly shortened.

The invention belongs to the technical field of medical teaching aids, and discloses a teaching aid for simulating distal radius fracture manual reduction, which comprises a first fixing block, a second fixing block, a fixing rod and a simulated radius, an adjusting assembly and a moving rod are arranged in the fixing rod in a penetrating manner and are connected through an extension spring, and a connecting rod at the tail end of the moving rod is hinged to a rotating rod. The rotating rod is arranged in the first fixing block in a penetrating mode, the elasticity adjusting set of the rotating rod comprises an adjusting rod, an elastic rope and a U-shaped block, the tail end of the adjusting rod is connected with the elastic rope, and the elastic rope penetrates out of the rotating rod and then is connected with the connecting rod; an unlocking assembly is arranged in the first fixing block in a penetrating mode, and the simulated broken bone is arranged on the first fixing block. By rotating the rotating rod and the connecting rod, the position of the simulated broken bone relative to the simulated radius is changed, and different clinical fracture conditions are reproduced; by pulling the adjusting rod, pulling force provided by the elastic rope is changed, different force feedbacks are provided, more real conditions are simulated, and the training effect is better.

The utility model discloses a buckling type distal radius fracture splint device, and belongs to the technical field of orthopedic fixing devices. The first soft plate is arranged on the palm side at the far end of the radius in an attached mode, and the whole first soft plate extends out of the wrist from the arm; the first clamping plate is arranged on the outer side of the first soft plate, the whole first clamping plate extends from the arm to exceed the wrist, the part, exceeding the wrist, of the first clamping plate is bent upwards, and the tail end of the first clamping plate abuts against the palm side so as to provide downward compression force for the palm side; the second clamping plate is arranged on the radial side of the distal radius in an attached mode, the second clamping plate integrally extends out of the wrist from the arm, and the tail end of the second clamping plate abuts against the radial side of the hand, so that acting force towards the ulna side is generated; and the fixing piece is used for fastening and positioning the soft plate and the clamping plate. According to the buckling type distal radius fracture splint device, related complications such as soft tissue scars caused by gypsum wrapping and clamping of a fracture fixing part can be reduced.

The present invention provides a wrist joint prosthesis, comprising: a radius component having an articular surface and a ball shaft provided on the articular surface; an articular liner movably connected to the radius component, the bottom of the articular liner being adapted to the articular surface, and a limiting groove being provided on the articular liner, the limiting groove including a first limiting groove and a second limiting groove communicating with each other, the first limiting groove extending along a first direction and the second limiting groove extending along a second direction; a plate body connected to the side of the articular liner away from the radius component, and a connecting hole being provided on the plate body; wherein, the ball shaft is located in the limiting groove, and the articular liner can move relative to the radius component along the first direction under the cooperation of the first limiting groove and the ball shaft, and the articular liner can move relative to the radius component along the second direction under the cooperation of the second limiting groove and the ball shaft. The technical solution of the present invention effectively solves the problem that the internal parts of the wrist joint prosthesis in the related art are prone to come apart, resulting in a short service life.

The invention relates to the technical field of ulna and radius reduction, and discloses an ulna and radius reduction device for bone surgery and a using method thereof.The ulna and radius reduction device comprises a base, a support is fixedly connected to the side wall of the base, two sliding blocks are slidably connected to the top of the base, and bandages are fixedly connected to the tops of the sliding blocks. A medical worker exerts pulling force on the palm position, the palm and the top end of the front arm are pulled to drive a bandage to move, a sliding block moves synchronously, when the sliding block moves, a sliding toothed bar is driven to move, a gear is driven to rotate while the sliding toothed bar moves, and when the gear rotates, the movable toothed bar moves along with the sliding toothed bar; by means of the structure, the binding band at the tail end of the forearm and the sliding block move, the same force can be applied to the tail end of the arm while pulling force is applied to the front end of the arm of a patient, and accurate alignment of the fracture end can be effectively guaranteed by maintaining the force which is constant in size and horizontal in direction.

The embodiment of the present application provides a key point labeling method based on bone age detection and a related device. Among them, a key point labeling method based on bone age detection includes: obtaining a target DR image; labeling each bone of the m bones in the target DR image, and obtaining the epiphyseal point corresponding to each bone in the m bones; connecting the center point of the line between the epiphyseal point corresponding to the ulna bone and the epiphyseal point corresponding to the radius bone with the epiphyseal points corresponding to the n bones respectively, and determining the vertical line perpendicular to the line between the center points corresponding to each epiphyseal point in the n epiphyseal points; in the finger area corresponding to the i-th bone, according to the vertical line corresponding to the i-th bone, calculate the center of mass corresponding to the i-th bone; if the center of mass coincides with the epiphyseal point corresponding to the i-th bone, then update the epiphyseal point corresponding to the i-th bone to the key point of the i-th bone. The embodiment of the present application can improve the accuracy of key point labeling when detecting bone age.