27 results about "Fixed joint" patented technology

This invention belongs to the field of medical devices, specifically a combined internal fixator and fixation method for fixing joints with micro-motion. The combined internal fixator includes a first bone screw and a second bone screw. A movable connecting structure is provided between the connecting ends of the first and second bone screws. The movable connecting structure includes a groove and a shaft. The groove includes an insertion port and a mounting groove communicating with the insertion port. The mounting groove has a semi-circular cross-section. The shaft includes a semi-circular shaft adapted to the mounting groove, which is rotatably accommodated within the mounting groove, allowing the first and second bone screws to rotate relative to each other around a first radial axis. This invention, through a hook-groove sliding self-locking structure, achieves controllable micro-motion and integrated implantation for fixing joints with micro-motion. It has achieved significant technological advancements in preserving joint physiological function, simplifying surgical procedures, avoiding secondary surgeries, and reducing the incidence of complications. It has important clinical application value and is suitable for fixing joints with micro-motion.

The anti-dripping device comprises two supporting blocks, one sides of the two supporting blocks are fixedly connected with a fixing block, the outer wall of the fixing block is movably connected with an adjusting block, one end of the fixing block is fixedly connected with a positioning block, and the other end of the fixing block is fixedly connected with a clamping block. The other sides of the two supporting blocks are fixedly connected with a fixed connector, the outer wall of the fixed connector is movably connected with a movable ring, one side of the movable ring is fixedly connected with a reset spring, and the other side of the movable ring is movably connected with a movable connector; the device is provided with the supporting block, the fixed block, the adjusting block, the positioning block, the fixed joint, a movable ring, a reset spring and a movable joint, so that positioning after connection is facilitated, the loosening condition caused by accidental sliding is prevented, the problem of easy water dripping caused by loosening is avoided, the working requirements of people are met, and the device is worthy of popularization and application.

The utility model discloses a mixed fixing type joint prosthesis assembly, belongs to the technical field of joint prostheses, and is designed for solving the problems that a joint prosthesis in the prior art is loosened and even falls off and the like. The utility model discloses a mixed fixing type joint prosthesis assembly which comprises a joint prosthesis which is an arc-shaped face, and the inner concave face of the joint prosthesis comprises a posterior condyle area and a main body area. The biological material layer covers at least part of the posterior condyle area, and the biological material layer is used for forming bone ingrowth between the biological material layer and the to-be-connected bone. According to the mixed fixing type joint prosthesis assembly, the stability of connection is improved through bone ingrowth formed between the biological material layer and the skeleton to be connected, and the problem that in the prior art, bone cement in the posterior condyle area cannot reach the effective penetration depth, and consequently a joint prosthesis is loosened and even falls off from the skeleton of the human body is solved; connection between the joint prosthesis assembly and the to-be-connected skeleton is more stable, and the use experience is better.

The application discloses a swallowing type mechanical arm and belongs to the field of flexible mechanical arms, comprising a plurality of small sections (100) with the same structure and a terminal fixed plate (200); the small section (100) comprises an outer skeleton (110) and an inner swallowing mechanism (120); the outer skeleton (110) comprises a fixed joint (111), an outer spiral shape memory alloy wire (112) and a circumferential shape memory alloy wire (113); the inner swallowing mechanism (120) comprises a film (121), an inner fixed plate (122), a swallowing shape memory alloy wire (123) and a rigid linkage device (124); the application has the technical effect that the shape memory alloy wire at a specific position can be heated by electric current to control the stretching, bending, expansion, contraction of the swallowing type mechanical arm and the opening and recovery of the inner swallowing shape memory alloy wire (123), so that the target object can be gripped and moved in the hollow interior of the swallowing type mechanical arm.

The motion quality evaluation method based on motion perception and double-flow space-time graph convolution relates to the motion quality evaluation field, solves the problems that the existing rehabilitation motion quality evaluation method is difficult to accurately model the cooperation between joints, the fixed joint grouping strategy is not flexible enough, the model has insufficient recognition of the detail differences of complex rehabilitation motions, and the reliability of the evaluation result is affected, a dynamic joint grouping strategy based on motion amplitude driving is provided, a double-flow STGCN architecture is designed, the position and orientation information of the joints are processed respectively and then fused, a two-stage self-attention module SADG is developed, the inter-group time sequence mode and the intra-group spatial relationship are modeled in stages, and multi-granularity feature interaction fusion is realized. The attention mechanism introduces a constraint guided by the motion amplitude, so that the attention weight is more interpretable and has physical meaning.

1. The name of the design product: fixed joint. 2. The use of the design product: for clinical drainage. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses a pipeline inserting machine, which relates to the technical field of pipeline inserting appliances and comprises a base, a mounting rack is vertically and fixedly connected to the middle of the top surface of the base, an upper clamping claw and a lower clamping claw are mounted between the base and the mounting rack, and an adjusting component is mounted between the base and the mounting rack; according to the pipeline clamping device, the upper clamping claw and the lower clamping claw are matched, so that a pipeline can be conveniently clamped and positioned, and the pipeline is prevented from deviating when being inserted; through the cooperation of the port upper jig and the port lower jig, the port part can be conveniently clamped and positioned, and the pipeline insertion effect and the pipeline insertion efficiency are improved; through cooperation of the width measuring sensor and the equipment sensor, whether the port component is in place or not and whether the port component and the pipeline are aligned or not can be conveniently detected, and the insertion efficiency is improved; and through cooperation of the electric push rod and the supporting frame, the insertion force and depth of each time can be conveniently controlled, and therefore the connection consistency of each pipeline and the corresponding connector is guaranteed.

A traditional multi-rod connecting structure generally adopts a rigid fixed joint (such as a multi-way pipe joint), the relative poses of ports of the traditional multi-rod connecting structure are in a fixed geometrical relationship, and the traditional multi-rod connecting structure can only adapt to static structure construction and is difficult to adapt to scenes needing dynamic deformation. According to an existing flexible joint technology, the deformation capacity is achieved through an elastic material, but the following defects still exist: deformation concentration is insufficient, elastic deformation is distributed on the whole of a joint but not local, and consequently the axes of a plurality of rod pieces deviate from a preset rotation center; the motion range and rigidity are unbalanced, the motion range of rod pieces is limited, interference is generated when adjacent rod pieces are excessively close to each other, and the structural deformation flexibility is insufficient due to the fact that the overall elasticity modulus of a connector is too high; the multi-degree-of-freedom deformation capacity of the flexible multi-rod joint is achieved through the deformable part made of the continuous flexible component, and the flexible multi-rod joint can be used for building a frame structure and a connecting rod mechanism.

The application discloses a dexterous hand finger structure and a dexterous hand, wherein the dexterous hand finger structure comprises a base, a proximal phalanx, a middle phalanx, a distal phalanx, a first driving assembly and a second driving assembly. The proximal phalanx is hinged to the base through a first joint shaft, and the middle phalanx and the distal phalanx are sequentially hinged. The first driving assembly drives the proximal phalanx to bend through a first tendon. The second driving assembly drives the middle phalanx and the distal phalanx to bend through a second tendon. The first joint shaft is fixed to the base, and a side wall of the first joint shaft is provided with a through hole. The transmission path of the second tendon is configured as follows: the second tendon is led out from a second driver, sequentially passes through the through hole on the base and the first joint shaft, and is fixed to the distal phalanx after passing around the second joint shaft and the third joint shaft. The design makes the tendon path for driving the middle phalanx and the distal phalanx pass through the fixed joint shaft center, effectively blocks the path length interference of the tendon for the middle phalanx and the distal phalanx caused by the movement of the proximal phalanx, realizes the complete decoupling and independent precise control of the movement of each joint, and is simple and reliable in structure and suitable for precise operation scenes.

The invention discloses an action quality assessment method based on motion perception and double-flow space-time diagram convolution, relates to the field of action quality assessment, and solves the problems that an existing rehabilitation action quality assessment method is difficult to accurately model a synergistic effect between joints and a fixed joint grouping strategy is not flexible enough, so that the detail difference identification degree of a model on complex rehabilitation actions is insufficient, and the rehabilitation effect is poor. The invention provides a dynamic joint grouping strategy based on motion amplitude driving, designs a double-flow STGCN architecture, processes position and orientation information of joints respectively and then fuses the information, develops a two-stage self-attention module SADG, and models an inter-group time sequence mode and an intra-group space relation in stages. And multi-granularity feature interaction fusion is realized. The attention mechanism introduces the constraint guided by the motion amplitude, so that the attention weight has higher interpretability and physical significance.

An apparatus for evaluating motions of a joint is provided that is designed for determining stability of an anatomical joint. The apparatus includes a support frame, a fixation assembly for securing a first body segment of a joint, and a displacement assembly mounted to the support frame. The fixation assembly includes an axis of rotation moveable relative to the support frame. The displacement assembly includes a first frame pivotably mounted to the support frame and rotatably connected to a first end of the fixation assembly, and a second frame pivotably mounted to the support frame and rotatably connected to a second end of the fixation assembly. The apparatus can further include a pivot joint pivotably supporting the support frame whereby the support frame defines and is laterally pivotable within a support frame pivot plane.

The utility model relates to the technical field of ankle joint training, and provides a herringbone hip brace capable of realizing ankle pump movement, which comprises a shank frame, a connecting rod mounted at the top end of the shank frame, a thigh frame mounted at the top of the connecting rod, a connecting flexible shaft mounted at the bottom end of the shank frame, and a foot pad mounted at one end, far away from the shank frame, of the shank frame. Connecting bandages are mounted on the outer side walls of the foot pad, the shank frame and the thigh frame; the training mechanisms are arranged at the two ends of the foot pad; the locking piece is arranged between the shank frame and the foot pad; the training mechanism comprises two storage boxes, the two storage boxes are fixedly connected to the two sides of the foot pad, and the inner side walls of the storage boxes are rotationally connected with connecting shafts; through the arrangement of the training mechanism, the fixing and rotating states can be conveniently adjusted when the herringbone hip brace is used, the device can fix joints of a patient when resting is needed, and when training is needed, the training mechanism is used in a contact and limiting mode to enable the patient to do flexion and extension movement to train ankles.

Techniques are disclosed for posing three-dimensional (3D) objects in extended reality (XR) environments using multiple hands. In some embodiments, an animation application selects a posing mode based on user interactions and adjusts joints and / or bones associated with a 3D object based on the posing mode and the user interactions. The posing mode can be a symmetric bimanual posing mode in which two joints are selected and adjusted simultaneously, an asymmetric bimanual posing mode a reference joint is selected with one hand to serve as a pivot while a second joint is adjusted by another hand, a virtual hand posing mode in which virtual hands are created to fix joints in place, or a bone manipulation mode in which bones can be selected and adjusted, with adjustments to the bones influencing joints that are connected to the bones.

This utility model relates to the field of infant and toddler products, and discloses a novel long-side lifting mechanism for a parent-child interactive crib. It includes a fixed joint, with a fixed joint cover fitted onto the outer wall of the fixed joint. The lifting assembly includes a locking slider, which is elastically connected to the inner wall of the top of the sliding joint via spring a. A protruding rod is fixedly connected to the inner wall of the bottom left side of the sliding joint, and an operation key is elastically connected to the bottom end of the protruding rod via spring b. A contact block is fixedly connected to the top of the outer wall of the operation key. A locking block is fixedly connected to the end of the locking slider away from spring a. In this utility model, the cooperation of spring a with the locking slider and locking block ensures that the crib side is securely locked in the positioning groove of the fixed support tube under normal conditions, effectively preventing accidental lifting of the crib side. Simultaneously, the design of the operation key requires manual effort to push it upwards, avoiding the risk of accidental unlocking by the infant.

The utility model relates to an X-ray photography system and a telescopic device thereof, the telescopic device comprises a limiting piece, a fixed joint and a plurality of telescopic joints, the fixed joint and the telescopic joints are sequentially sleeved from outside to inside, the fixed joint is used for being fixedly connected with a hanging bracket of a hanging device, and the innermost telescopic joint is used for being connected with a machine head device; the telescopic joint on the innermost side is further used for being connected with a traction mechanism of the suspension device through a traction rope; the limiting piece is located on the top end side of the telescopic joint. The limiting pieces are used for abutting against the telescopic joints, so that when the telescopic joints retract to the preset positions, the top end faces of the telescopic joints are flush with the top end face of the fixed joint at the same height in the telescopic direction. When the telescopic joints retract to the preset positions relative to the fixed joints (for example, the telescopic joints retract completely), the telescopic joints can be mechanically limited through the limiting pieces so as to reduce or eliminate the height section difference between the telescopic joints and between the telescopic joints and the fixed joints, and therefore a larger lifting range can be given to the machine head device on the premise that the number of the telescopic joints is not increased.

The utility model discloses a semi-automatic hose inserting device which comprises a working table, a clamping jaw air cylinder located at the front end of the working table, a sliding table air cylinder located behind the clamping jaw air cylinder, the clamping jaw air cylinder comprises a clamping jaw piston rod, a left clamping jaw, a right clamping jaw and a connecting plate, clamping grooves are formed in the middle connecting portions of the left clamping jaw and the right clamping jaw respectively, and the clamping grooves are arranged oppositely. The sliding table air cylinder comprises a sliding table piston rod, a bottom air cylinder, a sliding table and a fixing block, the sliding table piston rod is arranged at the front end of the bottom air cylinder, the top of the front end of the sliding table piston rod is fixedly connected with the fixing block, and a fixing groove used for fixing the connector is formed in the transverse middle of the fixing block. According to the principle of the semi-automatic hose inserting device, the hose inserting action of a person is simulated, a hose is clamped by a clamping jaw air cylinder, a connector is fixed to a sliding table air cylinder jig, and the hose inserting operation is achieved through alternate action of the two air cylinders. According to the utility model, the labor condition of personnel is improved, and the working intensity of the personnel is reduced.

The invention provides a fixed joint part contact stiffness analysis method and device, electronic equipment and a storage medium, and belongs to the technical field of simulation design, and the method comprises the steps: extracting X-Y direction coordinates of each grid node of a joint surface of a fixed joint part three-dimensional model; obtaining the contact pressure distribution of the joint surface, and identifying the average change period of the shape error of the joint surface in the XY direction according to the contact pressure distribution; generating a shape error simulation surface of the junction surface according to the flatness allowance of the junction surface and the average change period of the shape error; superposing the X-direction coordinates and the Y-direction coordinates of the grid nodes to the shape error simulation surface, and updating the Z-direction coordinates of the nodes in the shape error simulation surface; and performing contact pressure simulation on the shape error simulation surface to obtain normal contact pressure at each node, and determining the contact rigidity of the fixed joint part according to the normal contact pressure. The accuracy of the contact rigidity analysis result of the fixed joint part can be improved.

The invention relates to the technical field of telescopic short joints, and particularly discloses a telescopic short joint for underground hole depth detection, which comprises a fixed joint and a fixed column, a hollow cavity is formed in the fixed joint, a limiting block is fixedly connected to the bottom of one side of the inner wall of the hollow cavity, a movable joint is slidably connected to the hollow cavity in the vertical direction, and a through hole is formed in the center of the movable joint in a penetrating manner; the middle of the movable joint is fixedly connected with an annular block slidably connected to the bottom of the hollow cavity, a rotary telescopic mechanism is arranged on the side wall of the annular block, the bottom end of the movable joint is fixedly connected with a fixed column, and placing grooves are symmetrically formed in the two side walls of the fixed column. And a fixing mechanism is arranged in the fixing column on one side of the movable block. The telescopic short joint rotates through the movable joint, so that the detection instrument can perform dead-angle-free detection on an underground hole, and the movable joint and the fixed column drive the detection instrument to contract, so that the overall length is reduced, and the detection instrument can conveniently pass through a bent part in the hole.

The application discloses a kind of underwater clamping butt joint systems of remote control operation, butt joint device and butt joint method, it is related to seabed mining joint butt joint field;Butt joint system includes fixed joint and free joint, and the clamping butt joint device for clamping free joint is arranged on fixed joint, clamping butt joint device has centering clamping mechanism, and the axis of fixed joint coincides with the centering clamping center line of centering clamping mechanism;Centering clamping mechanism is connected with the lifting mechanism for driving centering clamp to make centering clamping action and lifting entire centering clamping mechanism, so that free joint is butt jointed with fixed joint.The purpose of the application is to use remote control unmanned submersible and the clamping butt joint device described above, the quick butt joint and disconnection of underwater pipe joint can be completed on sea surface, solve the problem that free joint of underwater mining slurry suction pipe is quickly clamped, aligned and connected to fixed joint.

The application belongs to the technical field of surgical robot, and particularly relates to a connection structure applied to a joint lens of a continuum surgical robot. In use, the installation end of the knife head is first inserted into the first cavity, and the installation end of the knife head is in frictional contact with the inner wall of the first cavity. The installation end of the knife head is located between the plurality of clamping pieces and is higher than the clamping pieces. By rotating the installation end of the knife head, relative rotation between the rotating joint and the fixed joint is caused, and the plurality of clamping pieces are driven to be close to and clamp the knife head, so that the installation of the knife head is realized. The existing knife head can be disassembled by reversely rotating the knife head. The connection is convenient, fast and firm, and the possibility of surgical risk is reduced. Meanwhile, the first cavity is in the shape of an inverted frustum, so that the first cavity can be adapted to knife heads of different shapes and sizes, and the applicability is stronger.

The utility model discloses a multifunctional armrest of a dental chair, which comprises a fixed column, the inside of the fixed column is slidably connected with a lifting mechanism, one side of the fixed column is fixedly connected with a fixed joint, and the surface of the fixed joint is rotatably connected with an angle adjusting mechanism. According to the multifunctional armrest of the dental chair, through the arrangement of the angle adjusting mechanism and the lifting mechanism, when the multifunctional armrest is used, a lifting column can be pulled to slide in a fixed column to a proper position according to user requirements, then the lifting column is fixed through a threaded column, and then a hydraulic rod on one side is started; the hydraulic rod stretches out and draws back and drives the fixing column on the tail end fixing connector to rotate on the left side bearing, so that the angle of the armrest body on the fixing column is adjusted, the effect of adjusting the height and the angle of the armrest body is achieved, the flexibility and the convenience of the device in the using process are improved, and the individual requirements of various patients are met.

The tissue forceps comprise two forceps beaks, a main joint part and a sub-joint part, each forceps beak is provided with an occlusion assembly, a side opening is formed in one side of each forceps beak, the occlusion assemblies are arranged on the side openings, each occlusion assembly comprises a clamping plate, the clamping plates are located in the side openings, and the main joint part and the sub-joint part are arranged on the main joint part. A plurality of meshing teeth are evenly and fixedly connected to the sides, away from the forceps beak, of the clamping plates, a through opening is formed in the inner side of the main joint part, the two sides of the through opening are each of an opening structure, the sub-joint part is inserted into the through opening, and a shaft column is horizontally and fixedly connected to the middle of the through opening and rotationally connected to the middle of the sub-joint part in a sleeving mode. According to the utility model, the occlusion component carrying the occlusion teeth is arranged on the forceps beak and can be replaced, on one hand, the occlusion components with different tooth shapes can be replaced according to different clamped tissues, and on the other hand, when the occlusion teeth are abraded, the occlusion components can be directly replaced, the whole forceps body does not need to be scrapped, and waste is avoided.

Techniques are disclosed for posing three-dimensional (3D) objects in extended reality (XR) environments using multiple hands. In some embodiments, an animation application selects a posing mode based on user interactions and adjusts joints and / or bones associated with a 3D object based on the posing mode and the user interactions. The posing mode can be a symmetric bimanual posing mode in which two joints are selected and adjusted simultaneously, an asymmetric bimanual posing mode a reference joint is selected with one hand to serve as a pivot while a second joint is adjusted by another hand, a virtual hand posing mode in which virtual hands are created to fix joints in place, or a bone manipulation mode in which bones can be selected and adjusted, with adjustments to the bones influencing joints that are connected to the bones.

An upturning self-locking joint of a folding shower chair is formed by connecting a fixed joint, a rotating joint and a fixing piece, a limiting groove is formed in one end of the fixed joint, a rotating shaft hole is formed in one side of the limiting groove, a clamping groove is formed in the other end of the fixed joint, and a kidney-shaped hole corresponding to the rotating shaft hole of the fixed joint is formed in the rotating joint and has a certain inclination angle corresponding to the rotating joint. One end of the rotating joint is inserted into the limiting groove of the fixed joint, the fixing piece penetrates through the rotating shaft hole and the kidney-shaped hole to fix the fixed joint and the rotating joint, and a connecting plug is arranged at the other end of the rotating joint. The joint gravity self-sinking locking device can be used on a folding shower chair, realizes a joint gravity self-sinking locking function through the combination of the fixed joint and the rotary joint and the kidney-shaped hole with a certain inclination angle, and has the advantages of simple structure, low cost, safety and reliability.

The application relates to the technical field of structural engineering, in particular to an internal support structure with stress monitoring compensation and a working method thereof, which comprises a steel pipe internal support joint, a fixed joint mechanism is arranged on the left surface of the steel pipe internal support joint, and a quick mounting mechanism is arranged on the right surface of the steel pipe internal support joint. Through the cooperation of the fixed joint mechanism and the quick mounting mechanism, the quick mounting mechanism realizes quick butt joint, and the fixed joint mechanism quickly completes fixing during installation, so that the installation efficiency is greatly improved, the installation process is simplified, the stability is improved, the fixed joint mechanism is reliably fixed, the quick mounting mechanism provides fastening action, the structural stability is synergistically enhanced, the safety performance is improved, safety accidents are reduced, the components are conveniently disassembled and replaced, the maintenance time is shortened, the cost is reduced, component wear is reduced, the service life is prolonged, in addition, the fixed joint mechanism and the quick mounting mechanism can adapt to different working conditions, are flexibly connected with various components, have strong compatibility and high universality.

The utility model relates to the field of surgical instruments, and discloses a pair of distraction forceps convenient for observation, which comprises two forceps arms, an auxiliary rotating mechanism, two forceps handles and a fixing device, the two forceps arms are respectively and fixedly connected with the two forceps handles, the two forceps arms are rotatably connected through the auxiliary rotating mechanism, the auxiliary rotating mechanism comprises two shaft rods and a shaft ring, and the shaft ring is fixedly connected with the two shaft rods. The forceps handle comprises a sliding connector, a fixed connector, connector rings, a first sliding groove and a grab handle, a hook is welded to the side, away from the forceps arm, of the forceps handle, the two connector rings are welded to the side, away from the forceps arm, of the forceps handle, the two connector rings are fixedly connected with the interiors of the two connector rings in a sleeved mode, and the fixing device comprises a fixing strip, a spring, a fixing head, a telescopic rod, a second sliding groove and a third sliding groove. A clamping rod is embedded in the second sliding groove, one end of the clamping rod is connected with a rod handle, and a fixed sliding piece is fixedly arranged on one side of the rod handle. According to the utility model, the whole material is firm, the parts are more integral, and the use during an operation is convenient.

The utility model discloses an environment-friendly comfortable intravenous infusion fixing support for children, which comprises a bracket plate, a protective base plate is fixedly mounted in the bracket plate through a bolt body, the protective base plate is of a concave structure, and L-shaped buckles are fixedly mounted on one side surfaces of the front end and the rear end of the bracket plate respectively. Fixing adhesive tapes are fixedly mounted on the other side surfaces of the front end and the rear end of the bracket plate and correspond to the L-shaped buckles; buckle grooves are uniformly formed in the surface of one end, far away from the fixed joint with the bracket plate, of the fixing adhesive tape; the medical worker fixes the arm and the palm of the child patient through a fixing adhesive tape and a buckle groove in the fixing adhesive tape in cooperation with an L-shaped buckle; by means of the device, the problem that children are active in intravenous infusion can be effectively solved, and the situation that a needle head shifts or falls off in the infusion process is prevented.