84 results about "Radius bone" patented technology

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.

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.

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 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 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 invention relates to the technical field of medical informatization, and discloses a construction system for an orthopedic surgery analysis model, which comprises the following steps: acquiring original tomography data, and carrying out resampling and isotropic filtering processing on the original tomography data to obtain standard forearm three-dimensional image data; performing semantic recognition processing on the standard forearm three-dimensional image data to obtain a Boolean skeleton matrix; the positioning module is used for performing fracture surface positioning processing based on a Boolean skeleton matrix to extract fracture surface parameters; the skeleton processing module is used for performing skeletonization processing on the Boolean skeleton matrix to extract a radius center line and an ulna center line, and determining a functional rotation axis based on the radius center line and the ulna center line; and projecting the radius center line to the functional rotation axis to obtain a projection curve, and performing curvature analysis processing on the projection curve to obtain a radius arch top coordinate.

1. The name of the design product: radius ultrasonic bone density forearm fixator. 2. The use of the design product: radius ultrasonic bone density forearm fixator for detecting radius ultrasonic bone density of human. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The application discloses a function exercise device for distal radius fracture and relates to the technical field of orthopedic rehabilitation medical instruments, which comprises arc-shaped symmetrical circular arc plates, two of which are rotationally connected through a hinge in the middle, a function exercise assembly fixedly installed at one end of the two circular arc plates away from the wrist, and two fixed boxes included in the function exercise assembly. The function exercise device for distal radius fracture can realize rehabilitation training through the meshing transmission structure of the worm gear and the helical gear, can drive the finger joints to make soft and uniform flexion and extension movement through the linkage of the bilateral air bags, can realize the synchronous and integrated exercise of the wrist joint and the finger joints, can effectively accelerate local blood circulation, can reduce soft tissue swelling, can prevent muscle atrophy and joint stiffness, can reduce the risk of osteoporosis, can significantly shorten the fracture healing period, and can efficiently promote the comprehensive recovery of the motion function of the affected limb.

The utility model discloses a door nail system for supporting a distal radius watershed bone block. The door nail system comprises a fixing steel plate, a plurality of U-shaped kirschner wires, a plurality of forcing screws and a plurality of fixing screws. The fixed steel plate comprises a head part, a middle part and a tail part; a plurality of first kirschner wire holes and a plurality of first screw holes are formed in the head part in a penetrating manner; a plurality of second screw holes are formed in the fixing steel plate from the middle to the tail in the vertical direction at intervals, and each fixing bolt penetrates through one second screw hole to fix the fixing steel plate to the radius of the human body; the two vertical ends of each U-shaped kirschner wire penetrate through the two first kirschner wire holes and are driven into the far end of the radius of the human body, the middles of the two vertical ends of each U-shaped kirschner wire are bent, and the bent U-shaped transverse end is fixedly connected into one first screw hole through a forcing screw. According to the utility model, the problem of distal fracture recovery and fixation of the radius'watershed 'can be solved, and the distal end of the radius obtains the pressure close to the wrist joint, so that the effective, lasting and firm fracture fixation effect is obtained.

A radial capitellum prosthesis (1), comprising: - a radial head (2) shaped and designed to engage the humeral capitellum (3) of a patient; - a bipolar collar (4) rotatably associated with the radial head (2) by means of a ball joint (5) defined, with respect to the radial head (2), at the opposite end with respect to the end designed to engage the radial head; - a radial stem (6) associated with the bipolar collar (4) at the opposite end with respect to the ball joint (5) and designed to be fitted onto the distal end of the previously-prepared radius (7) of a patient.

The invention discloses a combined type distal radius fracture fixing mechanism which comprises a wrist fixing assembly and an arm fixing assembly, the wrist fixing assembly and the arm fixing assembly are connected through a connecting assembly, the wrist fixing assembly comprises a first outer sheath, a first air bag lining is arranged in the first outer sheath, and a second air bag lining is arranged in the first air bag lining. The arm fixing assembly comprises a second outer sheath, a second air bag lining is arranged in the second outer sheath, the first air bag lining is inflated through a first air pump, the first air bag lining is deflated through a first electromagnetic valve, the second air bag lining is inflated through a second air pump, and the second air bag lining is deflated through a second electromagnetic valve. And the second air bag lining is deflated through a second electromagnetic valve. According to the technical scheme, the pressure of the wrist fixing assembly and the pressure of the arm fixing assembly can be automatically adjusted, a stable environment is provided for callus formation, the air bag lining is soft in touch and comfortable to wear for a long time, the damping force of the connecting assembly is adjustable, and the fixing mechanism can be used in the initial fracture stage and the rehabilitation stage.

The utility model belongs to the technical field of medical instruments, and particularly relates to a novel splint for distal radius fracture, which comprises two first splints acting on the left side and the right side of a forearm respectively, two second splints acting on the upper side and the lower side of the forearm respectively and an electronic display screen. The exteriors of the two first clamping plates and the exteriors of the two second clamping plates are jointly and fixedly connected with three fastening structures distributed front and back, and the electronic display screen is fixedly connected with the exterior of the second clamping plate on the upper portion. By arranging the two first clamping plates and the two second clamping plates, the two first clamping plates and the two second clamping plates are distributed in a staggered and surrounding mode, and the three fastening structures are jointly arranged outside the first clamping plates and the two second clamping plates, when the device is used, according to the swelling condition of the forearm of a patient in the using process, the forearm of the patient can be fixed; the tightness among the four clamping plates is adjusted through the three fastening structures, and the situation that when a patient uses the device, due to the fact that the forearm swells and fades away, the device is loosened, and external fixation fails is avoided.

The application provides a blood pressure detection triggering method and device and a wearable device, and relates to the technical field of terminals. The method can be based on the actual distribution of the ulnar styloid process, radial styloid process and carpal bone at the user's wrist in a normal position when the wearable device is worn, and the actual distribution of the ulnar styloid process, radial styloid process and carpal bone at the user's wrist in an abnormal position, determine whether the wearable device is worn in the normal position according to the signal value detected by the detection device (such as a sensor), and start the blood pressure detection / calibration function of the wearable device when the wearable device is worn in the normal position. Therefore, the blood pressure detection / calibration is started when the wearable device is worn in the normal position, so that the blood pressure detection is triggered accurately, and the accuracy of blood pressure measurement is improved.

The present invention discloses a humanoid robot based on pneumatic actuators, belonging to the field of robots. The movement of each joint is driven by pneumatic actuators, and it mainly consists of the humerus, radius, ulna, pneumatic muscles, cylinders, connecting pieces, control systems, etc. Four parallel pneumatic muscles of the shoulder joint drive the shoulder joint. The humerus is divided into two segments, and the two segments are connected by a cylinder; a group of shoulder-elbow joint pneumatic muscles are respectively connected to the connecting piece of the shoulder joint and the radius and ulna, which can not only drive the movement of the elbow joint, but also drive the shoulder joint together with the pneumatic muscles of the shoulder joint; four parallel ones drive the forearm, and the radius and ulna are respectively connected to two of them, both of which are connected to the wrist joint connecting plate. The radius and ulna are designed into two segments and are connected by a cylinder in the middle. The present invention is driven by pneumatic muscles and cylinders, and has the characteristics of compact structure, large working space and multiple degrees of freedom of movement, and can be used for experimental teaching, circuit demonstration and fault repair.